Capability Matrix - Militram...LENSES WINDOWS/DOMES BEAMSPLITTERS FILTERS ... It is useful for...

Capability Matrix

CVI Infrared Optics - CAPABILITY MATRIXPlease click on any of the blue or green circles contained in the matrix below to progress to more specific CVI Infrared Optics capability

Optical componentsOpticalGlass

Silicon Ge ZnS ZnS(M) ZnSeChalco-genides

Sapphire CaF2 MgF2 GaAs

Lenses

Beamsplitters

Windows

Window Assemblies

Heated Window Assemblies

Domes

Dome Assemblies

IR Detector Filters / Windows3-6µm

A/R3-6µmL/S WP

3-6µmNBP

7-12µmA/R

7-12µmL/S WP

7-12µmNBP

Metallising

Detector Filters

Detector Windows

Strong capability Moderate capability No current capability

CVI Infrared Optics is the trading name of CVI Laser Ltd in the UK. The company is part of the IDEX Optics and Photonics Group.

CVI Infrared Optics - CAPABILITY MATRIX

400mm

INFRARED, VISIBLE AND MULTISPECTRAL WINDOWS AND DOMES

ONGOING DEVELOPMENTDevelopment work continues to add to CVI’s range of high durability coatings, in particular to increase the salt and abrasion resistance of external surfaces. Other development activities include improvements in electrically conductive coatings and bus-barring to enhance the performance of heated window assemblies for demisting and de-icing. The company is also developing advanced masking techniques for precision placement of coatings

CVI manufactures customised optical components.This datasheet is intended as a guide to our capabilities.Please contact us if your requirement is not coverered by this information.

MATERIALS

Optical glasses

COATINGS FOR:

MAXIMUM DIMENSIONS

Windows: up to diameter / diagonal

Domes: up to 400mm diameter

TYPICAL TOLERANCES

Dimensional: 0.1mm

Surface figure: 2 fringes power x 0.5

fringe irregularity

Transmitted wavefront error: we have the

capability of measuring at 10.6µm over a

260mm diameter aperture and 152mm dia

in the visible.

Parallelism: 30 arc seconds

Edge thickness variation (domes): 0.05mm

Please click on any of the symbols to proceed

Alternatively you can click on the Next page icon at the bottom of screen to scroll through our capabilities page by page

TYPES

External IR windows and domes

External visible windows and domes

Heated window assemblies

EMC screened window assemblies

Dome assemblies

Detector windows


INFRARED AND MULTISPECTRAL BEAMSPLITTERS

TYPES

Visible reflection / IR transmission

IR reflection / Visible

Split laser λ from TI bands

50/50 split of a single λ or λ band

MAXIMUM DIMENSIONS

Depend on beamsplitter type.

TYPICAL TOLERANCES

Dimensional: 0.1mm


fringe irregularity

Transmitted wavefront error: we have the

capability of measuring at 10.6µm over a

260mm diameter aperture and 152mm dia

in the visible.

Parallelism: ≤ 30 arc seconds

MATERIALS

COATING TYPES




Please call CVI for further details.

CVI beamsplitters are custom designed.

Optical glasses


LENSES

TYPES

Biconvex

Plano-convex

Convex-concave

Meniscus

Plano-concave

Biconcave

Spherical

Aspheric

Diffractive

MAXIMUM DIMENSIONS

Up to 300mm diameter

TYPICAL TOLERANCES

Dimensional: 0.1mm


fringe irregularity

Centration: ≤ 1 arc minute

MATERIALS

COATINGS FOR:





FILTERS

TYPES

Long and shortwave pass filters

Bandpass filters

Wavelength range 0.7 to 20µm

Edge metallising

Filter assemblies

MAXIMUM DIMENSIONS

Typical dimensions:

Up to 200mm diameter or square

TYPICAL TOLERANCES

Spectral position: ±0.5%

Dimensional tolerances: ± 0.1mm

MATERIALS

Glass / Filter glasses

Metal layers for edge soldering:

Gold

Nickel

Chrome

Titanium

COATING TYPES





LENSES WINDOWS/DOMES BEAMSPLITTERS FILTERS

Zygo interferometer

LUPI 10.6µm laser unequal

path 260mm dia aperture

interferometer

Spectrophotometers

Humidity chamber

Salt spray chamber

Temperature cycling chambers

Windscreen wiper test facilities

TEST EQUIPMENT

Perkin Elmer Spectrophotometers: for measuring spectral characteristics

Zygo Phase-Shifting Interferometers with Metro Pro Software: for measuring flatness and form errorSmartscope MVP 300 measuring system

Smartscope MVP 300

PRODUCTION EQUIPMENT


Peter Wolters Polisher

Lapmaster

Coating chambers

Thermal evaporation

Electron beam deposition

Ion assisted deposition

Advanced plasma source

Chemical vapour deposition

LENSES WINDOWS/DOMES BEAMSPLITTERS FILTERS

Conventional Polishing System

Schneider CNC polisher

PRODUCTION EQUIPMENT

RF Sputtering

Lapmaster 48 inch Polishing Systems: for flat-polishing

Peter Wolters Twin-Sided Polishing Systems: for lapping and flat-polishing large or high volume optics

Schneider CNC Polishing System: for high-speed polishing of spherical surfaces

Diamond-turning machines for production of aspheric and diffractive surfaces

Coating Chambers: 7 chambers of various sizes and configurations for a variety of infrared and visible coating types

Diamond Turning Machines


Germanium is a broad band infrared transmitting material. It is useful for optical components operating in the mid- and far-infrared regions.

MATERIAL PROPERTIES

OPTICAL PROPERTIESBulk Absorption @ 10.6µm <0.027 cm-1

Reflection Loss at 11µm (Two surfaces) 53%Refractive Index at 11µm 4.0026 Temp change in Refractive Index 3.9 x 10-4 K-1

THERMAL PROPERTIESThermal Conductivity at 20°C 58.61

gK J 013taeH cificepS -1 K-1

01 x 1.6noisnapxE lamrehT -6 K-1 at 298K

MECHANICAL PROPERTIES aPG 7.201suludoM sgnuoY

apM 39suludoM erutpuR aPG 76suludoM raehS

mm/gK 087ssendraH poonK -1

82.0oitaR nossioP1.7 4 6 8

100

95

90

85

80

75

70

65

60

55

50

45

40

35

30

25

20

15

10

5

0

2210 12 14 16 18 20 24

Ge polished window 2mm path length

GERMANIUM Ge

Wavelength µm

Tran

smis

sio

n %

The above technical information is supplied as an introductory outline only.We do not recommend that this data be relied upon without independent verification of suitability.

W m-1 K-1


Please click on any of the symbols to select a coating


Coatings for GERMANIUM GeAll CVI Infrared Optics coatings are now radioactive-free


Hard Carbon antireflection coating for Germanium8 - 12µm

DESCRIPTIONThis coating is designed for outer surface (O.S.) applications where severe environmentalconditions are likely to be encountered.

The coating will operate under conditions such as:exposed optical surfaces of hand-held or vehicle-mounted thermal imaging systems; exposed optical surfaces of airborne or naval FLIR systems; exposed window surfaces where windscreen wiper or chemical attack is to be endured.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate which has been coated on onesurface with CO 4004 and on the second surface with CO 4009 (High Efficiency coating).TRANSMISSION > 90% (average) from 8 - 11.5µm

Reflection values are for a single Germanium surface coated with CO 4004.REFLECTION < 3% (average) from 8 - 11.5µmENVIRONMENTAL PERFORMANCE

The coating will withstand the following environmental testswhich will be carried out on a representative witness piececoated in the same batch.

ADHESION MIL-C-48497 para 4.5.3.1TS1888 para 5.1

HUMIDITY MIL-C-48497 para 4.5.3.27 days TS1888 para 5.2.1.2

ABRASION TS1888 (O.S) para 5.4.3windscreen wiper

SALT FOG MIL-STD-810C para 509.124 hours

CO 4004 Ge 8-12

This coating can be adapted to meet the spectral requirements of specific applications.

This coating contains no radioactive materials.

Typical spectral performance. Measured at 0° angle of incidence and at 20°C on a 1mm thick witness piece.

ENVIRONMENTAL PERFORMANCEThe coating will withstand the following environmental testswhich will be carried out on a representative witness piececoated in the same batch.





100

98

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94

92

90

88

86

84

82

80

10

9

8

7

6

5

4

3

2

1

0

Wavelength µm

Tran

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n %

Refl

ecti

on

%

7.0 8.0 9.0 10.0 11.0 12.0


Hard Carbon antireflection coating with enhanced salt resistance for Germanium8 - 12µm

DESCRIPTIONThis coating is designed for outer surface (O.S.) applications where severe environmentalconditions, particularly salt spray and salt fog, are likely to be encountered.

The coating is designed for such applications as:exposed optical surfaces of hand-held or vehicle-mounted thermal imaging systems;exposed optical surfaces of airborne or naval FLIR systems;exposed window surfaces where windscreen wiper or chemical attack is to be endured.

SPECTRAL PERFORMANCETransmission values are for 1mm thick Germanium substrate which has been coated on onesurface with CO 4004E and on the second surface with CO (High Efficiency coating).TRANSMISSION > 90% (average) from 8 - 11.5µm

Reflection values are for a single germanium surface coated with CO 4004.REFLECTION < 3% (average) from 8 - 11.5µmENVIRONMENTAL PERFORMANCE

The coating will withstand the following environmental testswhich will be carried out on a representative witness piececoated in the same batch.



ABRASION TS1888 (O.S.) para 5.4.3Windscreen wiper para 5.4.3

SALT FOG MIL-STD-810C para 509.190 days

CO 4004E Ge 8-12

4009




100

98

96

94

92

90

88

86

84

82

80

10

9

8

7

6

5

4

3

2

1

0

Wavelength µm

Tran

smis

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n %

Refl

ecti

on

%

7.0 8.0 9.0 10.0 11.0 12.0


High durability antireflection coating for Germanium8 - 12µm

DESCRIPTIONThis coating is designed for modular interface surface (M.I.S.) applications where maximumexternal durability is required whilst maintaining high transmission.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate which has been coated on bothsurfaces with CO 4005EN. TRANSMISSION > 97% (average) from 8 - 11.5µm

Reflection values are for a single Germanium surface coated with CO 4005EN.REFLECTION < 0.5% (average) from 8 - 11.5µm (typical)



HUMIDITY MIL-C-48497 para 4.5.3.224 hours TS1888 para 5.2.1.2

ABRASION MIL-C-48497 para 4.5.5.1TS1888 para 5.4.2

SALT SOLUTION MIL-C-48497 para 4.5.5.2TS 1888 para 5.2.1.1


CO 4005EN Ge 8-12




100

99

98

97

96

95

94

93

92

91

90

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Wavelength µm

Tran

smis

sio

n %

Refl

ecti

on

%

6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0


Dual band antireflection coating for Germanium3 - 5µm and 8 - 12µm

DESCRIPTIONThis coating is designed for applications requiring transmission in both thermal imagingspectral bands.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate which has been coated onboth surfaces with CO 4008TRANSMISSION > 95% (average) from 3 - 5µmTRANSMISSION > 94% (average) from 8 - 12µm

Reflection values are for a single Germanium surface coated with CO 4008.REFLECTION < 2% (average) from 3 - 5µmREFLECTION < 2% (average) from 8 - 12µm


3000

Wavelength - nm

Ref

lect

ion

9000 11000 130002000

1.00

0.98

0.96

0.94

0.92

0.90

0.88

0.86

0.84

0.82

0.80

0.20

0.18

0.16

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0

4000 5000 6000 7000 8000 10000 12000

Tran

smis

sio

n

CO 4008 Ge Dual band




ADHESION MIL-C-48497 para 4.5.3.1 TS1888 para 5.1

HUMIDITY MIL-C-48497 para 4.5.3.224 hours TS1888 para 5.2.1.2

ABRASION MIL-C-48497 para 4.5.5.1 TS1888 para 5.4.2

SALT SOLUTION MIL-C-48497 para 4.5.5.2 TS1888 para 5.2.1.1


100

98

96

94

92

90

88

86

84

82

80

20

18

16

14

12

10

8

6

4

2

0

Wavelength µm

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2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0


High efficiency antireflection coating for Germanium8 - 12µm

DESCRIPTIONThis coating is designed for internal surface (I.S.) applications and offers maximum transmissioncombined with low reflection.

Typically used in thermal imaging systems.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate which has been coated on bothsurfaces with CO 4009. TRANSMISSION > 98% (average) from 7.5 - 11.5µmTRANSMISSION > 96% (absolute) from 7.5 - 11.5µmTRANSMISSION > 94% (average) from 11.5 - 12.3µm

Reflection values are for a single Germanium surface coated with CO 4009.REFLECTION < 0.9% (average) from 7.5 - 8µmREFLECTION < 0.3% (average) from 8 - 11.5µmREFLECTION < 1.3% (average) from 11.5 - 12.3µm



HUMIDITY MIL-C-48497 para 4.5.3.2TS1888 para 5.2.1.2


This coating is also unaffected by the following environmental tests which will be performed upon request.

SALT SOLUTION MIL-C-48497 para 4.5.5.2TS1888 para 5.2.1.1

TEMPERATURE CYCLE MIL-M-13508C para. 4.4.4

CO 4009 Ge 8-12




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98

97

96

95

94

93

92

91

90

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Wavelength µm

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n %

Refl

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%

7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0


Hard carbon antireflection coating for Germanium3 - 5µm

DESCRIPTIONThis coating is designed for outer surface (O.S.) applications where severe environmentalconditions are likely to be encountered. Optimised for the nominal 3 - 5µm waveband,transmission is peaked at a specific wavelength within this band, normally specified by the end user.

The coating will operate under conditions such as:exposed optical surfaces of hand-held or vehicle mounted thermal imaging systems,exposed optical surfaces of or naval FLIR systems,exposed window surfaces where windscreen wiper or chemical attack is to be endured.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate which has been coated on onesurface with CO 4010 and on the second surface with CO 4029 (High Efficiency coating).TRANSMISSION > 92% (average) from 3 - 5µmTRANSMISSION > 96% (at peak wavelength) within 3 - 5µm

Reflection values are for a single Germanium surface coated with CO 4010.REFLECTION < 3.0% (average) from 3 - 5µm





SALT Fog MIL-STD-810C para 509.124 hours

CO 4010 Ge 3-5

airborne




100

98

96

94

92

90

88

86

84

82

80

10

9

8

7

6

5

4

3

2

1

0

Wavelength µm

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Refl

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%

2.5 3.0 3.5 4.0 4.5 5.0 5.5


100

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94

92

90

88

86

84

82

80

78

76

74

72

70

CO 4016 Ge 3.0 to 14.0µm


Broad band antireflection coating for Germanium

3.0 to 14.0µm

ENVIRONMENTAL PERFORMANCEThe coating will withstand the following environmental tests which will be

carried out on a representative witness piece coated in the same batch.

ADHESION MIL-C-48497A para 4.5.3.1

HUMIDITY MIL-C-48497A para 4.5.3.2

SEVERE ABRASION MIL-C-48497A para 4.5.5.1

SOLUBILITY & CLEANABILITY MIL-C-48497A para 4.5.4.2

SALT SOLUTION MIL-C-48497A para 4.5.5.2

WATER SOLUTION MIL-C-48497A para 4.5.5.3

TEMPERATURE CYCLE MIL-C-48497A para 4.5.4.1

DESCRIPTIONThis coating is designed for dual band thermal imaging systems.


SPECTRAL PERFORMANCEAverage Transmission ≥ 93% 3.0 to 13.0µm

Average Reflectance ≤ 4.0% 3.0 to 13.0µm

Transmission values are a for a 1mm thick Germanium substrate which has been coated on two surfaces

with CO4016.

Reflection values are for a single Germanium surface coated with CO4016.


10

9

8

7

6

5

4

3

2

1

0

3.0 5.0 7.0 9.0 11.0 13.0

Wavelength µm

Tran

smis

sio

n %

Refl

ecti

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%


High durability antireflection coating for Germanium8 - 12µm

DESCRIPTIONThis coating is designed for modular interface surface (M.I.S.) applications where maximumdurability is required whilst maintaining high transmission.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate which has been coated on onesurface with CO 4019 and on the second surface with CO 4009 (high efficiency coating).TRANSMISSION > 98% (average) from 8 - 11.5µm

Reflection values are for a single Germanium surface coated with CO 4019.REFLECTION < 0.5% (average) from 8 - 11.5µm





SALT SOLUTION MIL-C-48497 para 4.5.5.2TS 1888 para 5.2.1.1

TEMPERATURE CYCLE MIL-M-13508C para 4.4.4

CO 4019 Ge 8-12




100

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95

94

93

92

91

90

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Wavelength µm

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n %

Refl

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%

7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0


CO 4029 Ge 3-5µm


High efficiency antireflection coating for Germanium

3.0 to 5.0µm










DESCRIPTIONThis coating is designed for optimum performance of thermal imaging systems in the 3.0 to 5.0µm region.


SPECTRAL PERFORMANCETransmission ≥ 98% average 3.0 to 5.0µm

Reflectance < 0.50% average for 3.0 to 5.0µm


100

99

98

97

96

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94

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92

91

90

10

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2

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0

3.0 3.5 4.0 4.5 5.0

Wavelength µm

Tran

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Refl

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on

%


100

98

96

94

92

90

88

86

84

82

80

78

76

74

72

70

CO 4041 Ge 7.5 to 10.5µm



7.5 to 10.5µm





MILD ABRASION MIL-C-48497A para 4.5.3.3





DESCRIPTIONThis coating is designed for optimum spectral performance in the 7.5 to 10.5µm region.


SPECTRAL PERFORMANCEAverage Transmission ≥ 98.5% 7.5 to 10.5µm

Average Transmission ≥ 98.5% 7.5 to 10.5µm



with CO4041.

Reflection values are for a single Germanium surface coated with CO4041


10

9

8

7

6

5

4

3

2

1

0

7.0 7.5 8.0 9.0 9.5 11.08.5 10.0 10.5

Wavelength µm

Tran

smis

sio

n %

Refl

ecti

on

%


CO 4044 Ge 3.5-5µm



3.5 to 5.0µm










DESCRIPTIONThis coating is designed for systems optimised for the 3.5 to 5.0µm waveband.


SPECTRAL PERFORMANCEAverage Transmission ≥ 98.5% 3.5 to 5.0µm

Absolute Transmission ≥ 96.0% 3.5 to 5.0µm


Absolute Reflectance ≤ 0.75% 3.5 to 5.0µm


with CO4044.

Reflection values are for a single Germanium surface coated with CO4044


100

99

98

97

96

95

94

93

92

91

90

10

9

8

7

6

5

4

3

2

1

0

3.0 3.5 4.0 4.5 5.0 5.5 6.0

Wavelength µm

Tran

smis

sio

n %

Refl

ecti

on

%


CO 4090 Ge 3.8-5.0µm and 8.2 to 9.3µm


Dual band antireflection coating for Germanium

3.8 to 5.0µm and 8.2 to 9.3µm












SPECTRAL PERFORMANCET ≥ 98.25% Average 3.8 to 5.0µm

T ≥ 97.0% Absolute 3.8 to 5.0µm

T ≥ 98.5% average 8.2 to 9.3µm

T ≥ 97.5% absolute 8.2 to 9.3µm

R < 2%(average) from 3.5µm to 5.0µm

R < 2%(average) from 7.5µmto 10.5µm


with CO4090.



Wavelength µm

Ref

lect

ion

Tran

smis

sio

n

100

99

98

97

96

95

94

93

92

91

90

10

9

8

7

6

5

4

3

2

1

0

3.0 4.0 5.0 8.0 9.0 10.0

Tran

smis

sio

n

100

99

98

97

96

95

94

93

92

91

90

3.0 4.0 5.0

Ref

lect

ion

10

9

8

7

6

5

4

3

2

1

0

8.0 9.0 10.0

Tran

smis

sio

n %

Refl

ecti

on

%


Silicon is a broad band infrared transmitting material. It is useful for optical components operating in the mid-infrared region.

MATERIAL PROPERTIES

OPTICAL PROPERTIESBulk Absorption @ 3µm <0.01 cm-1

Reflection Loss at 5µm (Two surfaces) 46.2%Refractive Index at 5µm 3.4223 Change in Refractive Index with Temperature 160 x 10-6 K-1

THERMAL PROPERTIESThermal Conductivity at 0°C 163.3 W m-1 K-1

gK J 307 taeH cificepS -1 K-1

Thermal Expansion 4.15 x 10-6 K-1 at 298K

MECHANICAL PROPERTIES aPG 131 suludoM sgnuoY

aPM 521suludoM erutpuR aPG 76 suludoM raehS

mm fgk 0511 ssendraH poonK -2

662.0 oitaR nossioP

2.5 3 4 5

100

95

90

85

80

75

70

65

60

55

50

45

40

35

30

25

20

15

10

5

0

136 8 9 10 11 12 147 15

CZ 5mmFZ 5mmCZ 10mmCZ 20mmFZ 30mm

Czochralski grown (CZ)Typical absorption band at 9 micronSmall absorption at 5.8 micron

Float Zone (FZ)Reduces these absorptions

SILICON Si

Wavelength µm

Tran

smis

sio

n %


CVI Infrared Optics - CAPABILITY MATRIXPlease click on any of the symbols to select a coating


Coatings for SILICON SiAll CVI Infrared Optics coatings are now radioactive-free


Hard Carbon antireflection coating for Silicon3 - 5µm

DESCRIPTIONThis coating is designed for outer surface (O.S.) applications where severe environmentalconditions are likely to be encountered. Optimised for the nominal 3 - 5µm waveband,transmission is peaked at a specific wavelength within this band, normally specified by the end user.

The coating will operate under conditions such as:exposed optical surfaces of hand-held or vehicle mounted thermal imaging systems,exposed optical surfaces of airbourne or naval FLIR systems,exposed window surfaces where windscreen wiper or chemical attack is to be endured.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Silicon substrate which has been coated on one surfacewith CO 3404 and on the second surface with CO 3429 (High Efficiency coating).TRANSMISSION > 92% (average) from 3 - 5µmTRANSMISSION > 96% (at peak wavelength) within the 3 - 5µm band

Reflection values are for a single Silicon surface coated with CO 3404REFLECTION < 3.0% (average) from 3 - 5µm






CO 3404 Si 3-5

This coating can be adapted to meet the spectral requirements of specific application


airborne


100

98

96

94

92

90

88

86

84

82

80

10

9

8

7

6

5

4

3

2

1

0

Wavelength µm

Tran

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n %

Refl

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%

2.5 3.0 3.5 4.0 4.5 5.0 5.5


CO 3429 Si 3-5µm


High efficiency antireflection coating for Silicon

3.0 to 5.0µm














Transmission values are a for a 1mm thick Si substrate which has been coated on two surfaces with CO3429.

Reflection values are for a single surface coated with CO3429.


100

99

98

97

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94

93

92

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10

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8

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3.0 3.5 4.0 4.5 5.0

Wavelength µm

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Refl

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%


High durability antireflection coating for Silicon3 - 5µm

DESCRIPTION

In addition the coating can be designed to match the response curve of particular detectors inorder to minimise narcissus.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Silicon substrate which has been coated on one surfacewith CO 3435 and on the second surface with CO 3429 (High Efficiency Coating) TRANSMISSION > 97.5% (average) from 3 - 5µm, or > 98% (average) from 3.5 – 5µm

Reflection values are for a single Silicon surface coated with CO 3435REFLECTANCE < 0.5% (average) from 3 – 5µm, or < 0.3% (average) from 3.5 – 5µm




SOLUBILITY MIL-C-48497 para 4.5.5.2TS1888 para 5.2.1.1


SALT FOG MIL-STD-810F method 509.4

This Salt Tolerant Anti Reflection (STAR) coating is designed for use on the external surface of lenses and windows that are exposed to harsh (in particular, marine) environments, in those cases where the residual reflectance and lower transmittance of hard carbon (CO 3404) is undesirable.

CO 3435 Si 3-5



Typical spectral performance. Measured at 0° angle of incidence and at 20°C on a 1mm thick witness piece.Coated one side with CO3435 and the other with CO3429

* Exception: this coating withstands 10 days continuous salt fog exposure without the drying steps.

100

99

98

97

96

95

94

93

92

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90

5.0

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1.5

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%2.5 3.0 3.5 4.0 4.5 5.0 5.5


CO 3437 Si 3.5-5.0µm

Typical spectral performance. Measured at 0° angle of incidence and at 20°C on a 1mm thick witness piece.Coated one side with CO3437 and the other with CO3429

Salt fog resistant antireflection coating for Silicon

3.5 to 5.0µm







SALT FOG 60 DAYS (<2% T LOSS) MIL-STD-810 509.4

TEMPERATURE CYCLE MIL-C-48497A

* Exception: this coating withstands 60 days continuous salt fog exposure without the drying steps.

DESCRIPTIONThis coating is designed for external surfaces of 3.5 to 5.0µm Silicon components exposed to a salt

environment.



Reflectance ≤ 0.3% average for 3.5 to 5.0µm

Transmission values are a for a 1mm thick Si substrate which has been coated on one surface with CO3437 and

on the second surface with CO3429.



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CO 3444 Si 3.5-5µm


High efficiency antireflection coating for Silicon

3.5 to 5.0µm












SPECTRAL PERFORMANCEReflectance ≤ 0.3% average 3.5 to 5.0µm

Reflectance ≤ 0.75% absolute 3.5 to 5.0µm

Transmission values are a for a 1mm thick Si substrate which has been coated on two surfaces with CO3444.



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0.25

80%

70%

60%

50%

40%

30%

20%

10%

0

03010.1

5mm thick

ZnS Multispectral Transmission Spectrum

0.25

80%

70%

60%

50%

40%

30%

20%

10%

0

03010.1

5mm thick

ZnS Transmission SpectrumTwo grades of ZnS are available for use in imaging systems and instruments. Regular grade material is grown by the chemical vapour deposition process. This material is often used in the 3 to 5µm and 8 to 12µm region. It is available in large sizes as well.

MultiSpectral grade ZnS is treated after growth to eliminate microscopic voids and defects which occur in the Regular grade, thus extending the usefulness of this material to include the visible region.

MATERIAL PROPERTIES

LARTCEPSITLUMDRADNATSSEITREPORP LACITPOBulk Absorption @ 10.6µm _<0.24 _<0.20 cm-1

Temperature Change of Refractive Index @ 10.6µm 41 x 10-5 K-1

01 x 45 mµ8236.0 @ xednI evitcarfeR fo egnahC erutarepmeT -5 K-1

THERMAL PROPERTIESm W 761.0 K392 @ ytivitcudnoC lamrehT -1 K-1 0.272 W m-1 K-1

964.0 taeH cificepS 0.527 Linear Expansion Coefficient @ 293K 6.8 x 10-5 K-1 6.5 10-5 K-1

MECHANICAL PROPERTIESaPG 5.47 aPG 5.47 suludoM s'gnuoY

aPG 96 aPG 301 suludoM erutpuRmm fgk 042-012 ssendraH poonK -2 150-165 kgf mm-2

m gk 804 ytisneD -2 4.09 kg m-2

72.0 72.0 oitaR s'nossioP

ZINC SULPHIDE / MULTISPECTRAL ZINC SULPHIDE ZnS

cm-1

J kg-1 K-1 J kg-1 K-1

Wavelength µm

Tran

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n %

Wavelength µm

Tran

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Please click on any of the symbols to select a coating


Coatings for ZINC SULPHIDE / MULTISPECTRAL ZINC SULPHIDE ZnSAll CVI Infrared Optics coatings are now radioactive-free


Dual band antireflection coating for Zinc Sulphide3 - 5µm and 7.5 - 11µm

DESCRIPTIONThis coating is designed for applications requiring transmission in both thermal imaging spectral bands.

SPECTRAL PERFORMANCETransmission values are for a 2mm thick Zinc Sulphide substrate which has been coated on bothsurfaces with CO 2204.TRANSMISSION > 96% (average) from 3 - 5µmTRANSMISSION > 95% (average) from 7.5 - 11µm

Reflection values are for a single Zinc Sulphide surface coated with CO 2204.REFLECTION < 2% (average) from 3 - 5µmREFLECTION < 2% (average) from 7.5 - 11µm






CO 2204 ZnS Dual band




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2.5 3.25 4.0 4.75 5.5 6.25 7.0 7.75 8.5 9.25 10.0 10.75 11.5


Wiper resistant dual band antireflection coating for Zinc Sulphide3 - 5µm and 7.5 - 11µm

DESCRIPTIONAn improved abrasion resistant coating for external surfaces, offering high transmission inboth thermal imaging spectral bands.

The specification is similar to that of CO 2204, except that this coating offers windscreenwiper resistance.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Zinc Sulphide substrate which has been coated withon one surface with CO 2204E and on the second surface with CO 2204.TRANSMISSION > 95% (average) from 3 - 5µmTRANSMISSION > 95% (average) from 7.5 - 11µm

Reflection values are for a single Zinc Sulphide surface coated with CO 2204E.REFLECTION < 3% (average) from 3 - 5µmREFLECTION < 2% (average) from 7.5 - 11µm





WIPER ABRASION TS1888 para 5.4.35000 wipes

CO 2204E ZnS Dual band




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2.5 3.25 4.0 4.75 5.5 6.25 7.0 7.75 8.5 9.25 10.0 10.75 11.5


High efficiency antireflection coating for Zinc Sulphide 3 - 5µm

DESCRIPTIONThis coating is designed for internal surface (I.S.) applications and offers maximum transmission combined with low reflection.


SPECTRAL PERFORMANCETransmission values are for a 2mm thick Zinc Sulphide substrate which has been coated on both surfaces with CO 2207. TRANSMISSION > 98% (average) from 3.2 - 5µm

Reflection values are for a single Zinc Sulphide surface coated with CO 2207.REFLECTION < 0.5% (average) from 3.2 - 5µm





CO 2207 ZnS 3-5




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2.5 3.0 3.5 4.0 4.5 5.0 5.5


High efficiency antireflection coating for Zinc Sulphide8 - 11.5µm

DESCRIPTIONThis coating is designed to maximise transmission for applications in the thermal spectral band.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Zinc Sulphide substrate which has been coated on bothsurfaces with CO 2209.TRANSMISSION > 97% (average) from 8 - 11.5µm

Reflection values are for a single Zinc Sulphide surface coated with CO 2209.REFLECTION < 0.5% (average) from 8 - 11.5µm





CO 2209 ZnS 8-12




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6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0


rain erosion resitant antireflection coating for Zinc Sulphide8 - 12µm

DESCRIPTIONAn improved rain erosion resistant coating for external surfaces, offering high transmission inthe 8 - 12µm waveband.

It is particularly suitable for dome applications, where the same coating is applied to both faces.

SPECTRAL PERFORMANCETransmission values are for a 6mm thick Zinc Sulphide substrate which has been coated on bothsurfaces with CO 2214EN.TRANSMISSION > 91% (average) from 7.8 - 10.2µmTRANSMISSION ≥ 87% (absolute) from 7.8 - 10.2µmTRANSMISSION > 73% (average) from 10.2 - 12.1µmTRANSMISSION > 65% (absolute) from 10.2 - 12.1µmENVIRONMENTAL PERFORMANCE

The coating will withstand the following environmental tests

which will be carried out on a representative witness piece

coated in the same batch.





Rain Erosion ResistanceTRANSMISSION LOSS < 4% (average) from 8.0-11.5µm Under the following test conditions:

PERIOD OF EROSION: 1 hourRAIN DROPS: 2mm mean diameterIMPACT ANGLE: 60° to the surfaceSPEED: 500 mph/223 m/sRATE OF RAIN: 25mm/hour

7000 7500 8000 8500

1.00

0.95

0.90

0.85

0.80

0.75

0.70

0.65

0.60

0.55

0.50

0.10

0.09

0.08

0.07

0.06

0.05

0.04

0.03

0.02

0.01

0

Wavelength - nm

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ion

120009000 9500 10000 10500 11000 11500

Tran

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CO 2214EN ZnS 8-12









Rain Erosion ResistanceTRANSMISSION LOSS < 4% (average) from 8.0-11.5µm Under the following test conditions:

PERIOD OF EROSION: 1 hourRAIN DROPS: 2mm mean diameterIMPACT ANGLE: 60° to the surfaceSPEED: 500 mph/223 m/sRATE OF RAIN: 25mm/hour

Rain resistant

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7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0


CO 2220E Multispectral ZnS 0.45 to 0.65µm and 8.0 to 11.5µm

Visible / Longwave IR antireflection coating for Multispectral ZnS

0.45 to 0.65µm and 8.0 to 11.5µm









WIPER TS1888 5.4.3

DESCRIPTIONThis coating is designed for external surfaces of multispectral Zinc Sulphide components facing harsh

environments and operating and both the visible and long wave infrared wavebands.


SPECTRAL PERFORMANCEAve Transmission ≥ 90.0% 0.45 to 0.65µm

Ave Transmission ≥ 92.0% 8.0 to 11.5µm



100

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88

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72

70

0.40 0.45 0.50 0.55 0.60 0.65 0.70

30

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26

24

22

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18

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12

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6

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2

0


100

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90

88

86

84

82

80

78

76

74

72

70

7.5 8.0 8.5 9.0 9.5 10.0 12.0

30

28

26

24

22

20

18

16

14

12

10

8

6

4

2

0

10.5 11.0 11.5

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Wavelength µm

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CO 2229 ZnS 3-5µm


High efficiency antireflection coating for Zinc Sulphide

3.0 to 5.0µm













Reflectance ≥ 0.50% average for 3.0 to 5.0µm


with CO2229.



100

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CO 2244 ZnS 3.5-5µm


High efficiency antireflection coating for Zinc Sulphide

3.5 to 5.0µm












SPECTRAL PERFORMANCETransmission ≥ 98.5% Average 3.5 to 5.0µm

Transmission ≥ 96.0% Absolute 3.5 to 5.0µm

Reflectance ≤ 0.3% Average 3.5 to 5.0µm

Reflectance ≤ 0.75% Absolute 3.5 to 5.0µm

Transmission values are for a 1mm thick Zinc Sulphide substrate which has been coated on two surfaces

with CO2244.



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4

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CO 2290 Multispectral ZnS 3.8-5.0µm and 8.2 to 9.3µm


Dual band antireflection coating for Multispectral Zinc Sulphide

3.8 to 5.0µm and 8.2 to 9.3µm












SPECTRAL PERFORMANCEAve Transmission ≥ 98.25% 3.8 to 5.0µm

Abs Transmission ≥ 97.0% 3.8 to 5.0µm

Ave Transmission ≥ 98.5% 8.2 to 9.3µm

Abs Transmission ≥ 97.5.0% 8.2 to 9.3µm

Reflection < 2%(average) from 3.5µm to 5.0µm

Reflection < 2%(average) from 7.5µmto 10.5µm

Transmission values are a for a 1mm thick Zinc Sulphide substrate which has been coated on two surfaces

with CO2290.



Tran

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100

99

98

97

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95

94

93

92

91

90

3.0 4.0 5.0

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10

9

8

7

6

5

4

3

2

1

0

8.0 9.0 10.0

Tran

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99

98

97

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95

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93

92

91

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3.0 4.0 5.0

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Zinc Selenide is used for its very broad transmission range and low absorption, from the visible through to the far Infrared. Since it is a toxic material, processing and handling are subject to strict procedures

MATERIAL PROPERTIES

OPTICAL PROPERTIESBulk Absorption Coefficient @ 10.6µm _<0.0005 cm-1

Temperature Change of Refractive Index @ 10.6µm 61 x 10-5 K-1

THERMAL PROPERTIESm W 81.0 ytivitcudnoC lamrehT -1 K-1

gk J 653.0 taeH cificepS -1 K-1

01 x 75.7C°02 @ tneiciffeoC noisnapxE raeniL -5 K-1

MECHANICAL PROPERTIES aPG 2.76 suludoM s'gnuoY

aPG 55suludoM erutpuRmm fgk 021-501 ssendraH poonK -2

m gk 0725 ytisneD -2

82.0 oitaR s'nossioP

0.25

80%

70%

60%

50%

40%

30%

20%

10%

0

03010.1

10mm thick

ZnSe Transmission Spectrum

ZINC SELENIDE ZnSe

Wavelength µm

Tran

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Coatings for ZINC SELENIDE ZnSeAll CVI Infrared Optics coatings are now radioactive-free

-


Dual band antireflection coating for Zinc Selenide3 - 5µm and 8 - 12µm

DESCRIPTIONThis coating is designed for applications requiring transmission in both thermal imagingspectral bands.

SPECTRAL PERFORMANCETransmission values are for a 2mm thick Zinc Selenide substrate which has been coated onboth surfaces with CO 2404.TRANSMISSION > 95% (average) from 3 - 5µmTRANSMISSION > 96% (average) from 8 - 12µm

Reflection values are for a single Zinc Selenide surface coated with CO 2404.REFLECTION < 2% (average) from 3 - 5µmREFLECTION < 2% (average) from 8 - 12µm






CO 2404 ZnSe Dual band




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2.5 3.25 4.0 4.75 5.5 6.25 7.0 7.75 8.5 9.25 10.0 10.75 11.5


Wiper resistant dual band antireflection coating for Zinc Selenide3 - 5µm and 8 - 12µm

DESCRIPTIONAn improved abrasion resistant coating for external surfaces, offering high transmission inboth thermal imaging spectral bands.

The specification is similar to that of CO 2404, except that this coating offers windscreenwiper resistance.

SPECTRAL PERFORMANCETransmission values are for a 2mm thick Zinc Selenide substrate which has been coated onone surface with CO 2404E and on the second surface with CO 2404.TRANSMISSION > 95% (average) from 3 - 5µmTRANSMISSION > 96% (average) from 8 - 12µm

Reflection values are for a single Zinc Selenide surface coated with CO 2404E.REFLECTION < 2% (average) from 3 - 5µmREFLECTION < 2% (average) from 8 - 12µm







CO 2404E ZnSe Dual band




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2.5 3.25 4.0 4.75 5.5 6.25 7.0 7.75 8.5 9.25 10.0 10.75 11.5


High efficiency antireflection coating for Zinc Selenide8 - 12µm

DESCRIPTIONThis coating is designed for internal surface (I.S.) applications and offers maximum transmissioncombined with minimum reflection.


SPECTRAL PERFORMANCETransmission values are for a 1mm thick Zinc Selenide substrate which has been coated on bothsurfaces with CO 2409.TRANSMISSION > 98% (average) from 8 - 12µm

Reflection values are from a single Zinc Selenide surface coated with CO 2409.REFLECTION < 0.5% (average) from 8 - 11µm





This coating is also unaffected by the following environmental tests which will be performed upon request.


TEMPERATURE CYCLE MIL-M-13508C para. 4.4.4

CO 2409 ZnSe 8-12




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7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0


100

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94

92

90

88

86

84

82

80

78

76

74

72

70

CO 2410 ZnSe 8.0 to 17.0µm


Broad band antireflection coating for Zinc Selenide

8.0 to 17.0µm










DESCRIPTIONThis coating is designed for ultra broad band longwave infrared performance.


SPECTRAL PERFORMANCET ≥ 90.0% average 8.0 to 15µm

T ≥ 88.0% average 8.0 to 17µm

Transmission values are for a 1mm thick ZnSe substrate which has been coated on two surfaces with CO2410.


20

18

16

14

12

10

8

6

4

2

0

7.5 9.5 13.5 15.5 17.5

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88

86

84

82

80

78

76

74

72

70

11.5

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Antinarcissus antireflection coating for Zinc Selenide8 - 12µm

DESCRIPTIONThis coating is designed for internal surface (I.S.) applications and offers maximum transmissioncombined with extremely low reflection.


The coating does not transmit in the visible part of the spectrum and does not thereforefacilitate laser alignment.

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Zinc Selenide substrate which has been coated on bothsurfaces with CO 2411.TRANSMISSION > 98% (average) from 7.5 - 11.5µmTRANSMISSION > 96% (absolute) from 7.5 - 11.5µm

Reflection values are for a single Zinc Selenide surface coated with CO 2411.REFLECTION < 0.3% (average) from 7.5 - 11.5µmREFLECTION < 0.2% (average weighted to typical system response) from 7.5 - 11.5µm






CO 2411 ZnSe 8-12




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6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0


CO 2429 ZnSe 3-5µm


High efficiency antireflection coating for Zinc Selenide

3.0 to 5.0µm














Transmission values are a for a 1mm thick ZnSe substrate which has been coated on two surfaces with CO2429.



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CO 2444 ZnSe 3.5-5.0


High efficiency antireflection coating for Zinc Selenide

3.5 to 5.0µm












SPECTRAL PERFORMANCETransmission ≥ 98.5% Average 3.5 to 5.0µm

Transmission ≥ 96.0% Absolute 3.5 to 5.0µm

Reflectance ≤ 0.3% Average 3.5 to 5.0µm

Reflectance ≤ 0.75% Absolute 3.5 to 5.0µm

Transmission values are a for a 1mm thick ZnSe substrate which has been coated on two surfaces with CO2444.



100

99

98

97

96

95

94

93

92

91

90

10

9

8

7

6

5

4

3

2

1

0

3.0 3.5 4.0 4.5 5.0 5.5 6.0

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CO 2490 ZnSe 3.8-5.0µm and 8.2 to 9.3µm


Dual band antireflection coating for Multispectral Zinc Selenide

3.8 to 5.0µm and 8.2 to 9.3µm












SPECTRAL PERFORMANCET ≥ 98.25% Average 3.8 to 5.0µm

T ≥ 97.0% Absolute 3.8 to 5.0µm

T ≥ 98.5% average 8.2 to 9.3µm

T ≥ 97.5.0% absolute 8.2 to 9.3µm


Ref

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Tran

smis

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100

99

98

97

96

95

94

93

92

91

90

10

9

8

7

6

5

4

3

2

1

0

3.0 4.0 5.0 8.0 9.0 10.0

Ref

lect

ion

Tran

smis

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100

99

98

97

96

95

94

93

92

91

90

10

9

8

7

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4

3

2

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3.0 4.0 5.0 8.0 9.0 10.0

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Coatings for OPTICAL GLASSAll CVI Infrared Optics coatings are now radioactive-free


CO CCO1 Without Anti-reflection coating

CO CCO2 Including Anti-reflection coating

DESCRIPTIONThis coating is designed to have high conductivity and transmission over the 0.4 - 1.2µm range. It is suitable for use in aircraft instrumentation windows, CRT displays, anti-static, heating and EMC

SPECTRAL PERFORMANCESpectral performance of a typical coating is shown below. (NB. No anti-reflection coating on back surface).

ELECTRICAL PERFORMANCE

BUSBARScan also provide busbar technology, required for Electromagnetic Interference (EMI) and

heating applications.

EMC SCREENING PROPERTIES

Ω/sq Shielding effectiveness(300-1000MHz)

100 15dB020 36dB010 42dB

SPECTRAL PERFORMANCE


Adhesion MIL-C-48497 para 4.5.3.1Humidity MIL-C-48497 Para 4.5.3.2Abrasion MIL-C-48497 Para 4.5.3.3Salt Solution MIL-C-48497 Para 4.5.5.2

0.4

100%

80%

60%

40%

20%

0.6 0.8 1.0 1.2

15Ω/sq CCO2 on BK7screening applications and LCD displays.

Visible Conductive Coating

This coating to can be adapted to meet the specific spectral requirements of specific applications.


Sheet resistance in the range 10 Ω to 5 Ω per square can be achieved with tolerances of 10 to 15%, depending on resistivity requirements. This is achieved by varying the thickness of the Indium Tin Oxide (ITO) layer. The optical performance can then be achieved by adjusting the design of the anti-reflection coating.>>

Ω Ω

Ω/sq %T on 1mm thick BK7CC01 CC02

8010 84 8020 87 91050 84 92100 85 93

Wavelength µm

Tran

smis

sio

n %

We


Wideband IR mirror for oblique incidence

DESCRIPTIONThis coating is designed to retain high reflectivity in the IR over a wide angular range.

The mirror uses gold as the medium for high reflectivity, and the protective overlayers havebeen chosen so as to eliminate the reflectivity problems suffered by conventional protectedmirrors when used in the IR at oblique incidence.

SPECTRAL PERFORMANCEMeasured at 45˚ angle of incidenceREFLECTION >98% (average) 3 - 5µmREFLECTION >98% (average) 8 - 12µm





5.0

100%

99%

98%

97%

96%

95%

94%

93%

92%

91%

90%

5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0

CO OM12




Wavelength µm

Refl

ecti

on

%


There are two different ways of heating a window:

DirectBy using the bulk resistivity of Semiconductor materials such as Germanium and Silicon, a current can be passed directly through the material by means of busbar technology. Busbars can be manufactured to fit most thicknesses of window.

Indirect Indirect heating is suitable for use where non-conducting materials are required in a system such as Zinc Sulphide. Heating can be achieved using insulated foil heaters. Foil heaters can be manufactured to a minimum width of approx. 6mm.

POWER REQUIREMENTSIt is best to consider requirements for a system at an early stage. This way, canoffer advice on the power required and the best method for delivering heat into a window. Options to consider would be whether a current limiter or temperature control are required. Current/Voltage combinations should also be considered.

As each individual system has different requirements, we would recommend discussing your requirements with us prior to finalising design.

CVI has the capability to offer de-misting/defrosting windows by means of heating. This is typically used in systems that are likely to encounter variances in temperature or weather conditions.

CVI

Heating / De-frosting & EMC Shielding Windows


Standard visible antireflection coating on glass

DESCRIPTIONThis coating is designed to combine high visual transmission with low reflection.

Three versions of the coating cover the refractive index range 1.46 to 1.85.

SPECTRAL PERFORMANCE

CO 5201

Average reflection per coating ≤ 0.5% 420-700nm.



400 500 800600 700




ADHESION MIL-C-48497 para 4.5.3.1

TS1888 para 5.1

HUMIDITY MIL-C-48497 para 4.5.3.2

TS1888 para 5.2.1.2

ABRASION MIL-C-48497 para 4.5.3.3

TS1888 para 5.4.1

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Wavelength nm

Refl

ecti

on

%


Broadband antireflection coating on glass

DESCRIPTIONThis coating is designed to combined to give low reflectivity in the visible, Near IR and 1064nmlaser wavelength.

Three versions of the coating cover the refractive index range 1.46 to 1.85.

SPECTRAL PERFORMANCEAverage reflection per coating <0.75% 450 to 1100nmReflection at 1064nm <0.5%

Alternatively:-Average Reflection per coating <0.5% 450 to 650 nmReflection at 1064nm <0.5%

CO 5208



400 500 1100600 700 800 900 1000




ADHESION MIL-C-48497 para 4.5.3.1

TS1888 para 5.1

HUMIDITY MIL-C-48497 para 4.5.3.2

TS1888 para 5.2.1.2

ABRASION MIL-C-48497 para 4.5.3.3

TS1888 para 5.4.1

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Wavelength nm

Refl

ecti

on

%


100

98

96

94

92

90

88

86

84

82

80

78

76

74

72

70

CO 5210 Fused Silica 1.2-2.4µm


High efficiency antireflection coating for Fused Silica

1.2 to 2.4µm










DESCRIPTIONThis coating is designed for optimum spectral performance in the 1.2 to 2.4µm region.


SPECTRAL PERFORMANCET ≥ 98.0% average 1.2 to 2.4µm


10

9

8

7

6

5

4

3

2

1

0

1.0 1.2 1.4 1.8 2.01.6 2.2 2.4

Wavelength µm

Tran

smis

sio

n %

Refl

ecti

on

%


CO 5240E Glass 0.45 to 0.75µm and 1.543µm

Typical spectral performance. Measured at 0° angle of incidence and at 20°C on a 1mm thick witness piece. CO5240E on one surface and CO5240 on the other.

High efficiency antireflection coating for Glass

0.45 to 0.75µm and 1.543µm










SALT FOG [24HRS] MIL-STD-810 509.4

DESCRIPTIONThis coating is designed for optimum visible and laser performance in the 0.45 to 0.75µm and 1.543µm regions.


SPECTRAL PERFORMANCECO5240E on one surface and CO5240 on the other.

T ≥ 97.5% absolute 0.45 to 0.75µm

T ≥ 96.0% absolute 0.45 to 0.75µm

T ≥ 93.0% absolute 1.543µm

R ≤ 1.8% average for 0.45 to 0.75µm (two surfaces)


100

98

96

94

92

90

88

86

84

82

80

78

76

74

72

70

Ref

lect

ion

Tran

smis

sio

n

5

4

3

2

1

00.4 0.5 0.6 1.61.3 1.4 1.5

100

98

96

94

92

90

88

86

84

82

80

78

76

74

72

70R

efle

ctio

n

Tran

smis

sio

n

5

4

3

2

1

00.4 0.5 0.6 1.61.3 1.4 1.5

Wavelength µm

Tran

smis

sio

n %

Refl

ecti

on

%


100

98

96

94

92

90

88

86

84

82

80

78

76

74

72

70

CC21 Glass 0.425 to 0.7µm and 1.0643µm


Conductive coating with antireflective overcoat for Glass

0.425 to 0.7µm and 1.0643µm










DESCRIPTIONThis coating is designed for optimum conductivity whilst maximising transmission in the visible and

NIR regions.


SPECTRAL PERFORMANCET ≥ 88.0% average 0.425 to 0.70µm

T ≥ 90.0% absolute at 1.064µm

CONDUCTIVITY20 to 30ohm/sq


0.4 0.6 0.8 1.0 1.2 1.4 1.6

Wavelength µm

Tran

smis

sio

n %


can polish and coat many of the proprietary Chacogenide Glasses on the market. For material characteristics, see the manufacturers’ websites. The following sites contain useful information:

http://www.amorphousmaterials.com

http://www.optics.umicore.com/umicore_optics/products/gasir.asp

http://www.vitron.de/english/optical_glasses.html

CVI

CHALCOGENIDE GLASSES



Coatings for CHALCOGENIDE GLASSAll CVI Infrared Optics coatings are now radioactive-free


High efficiency antireflection coating on for Chalcogenide Glasses8 - 12µm



SPECTRAL PERFORMANCETransmission values are for a 1mm thick AMTIRTM substrate which has been coated on bothsurfaces with CO 2501.TRANSMISSION > 98% (average) from 8.0 – 12.0µm

Reflection values are from a single AMTIRTM surface coated with CO 2501.REFLECTION _< 0.4% (average) from 8.0 - 12.0µm





CO 2501 AMTIR 8-12TM




100

99

98

97

96

95

94

93

92

91

90

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Wavelength µm

Tran

smis

sio

n %

Refl

ecti

on

%

7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5


High efficiency antireflection coating on GASIRTM

8 - 12µm



SPECTRAL PERFORMANCETransmission values are for a 1mm thick GASIRTM substrate which has been coated on bothsurfaces with CO 2609.TRANSMISSION > 94% (average) from 7.5 – 11.5µm

Reflection values are from a single GASIRTM surface coated with CO 2609.REFLECTION < 0.4% (average) from 8.0 - 12.0µm





100

98

96

94

92

90

88

86

84

82

80

10

9

8

7

6

5

4

3

2

1

0

CO 2609 GASIR 8-12TM




Wavelength µm

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n %

Refl

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%

6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0


Gallium Arsenide is used in some far infrared applications where its refractive index, light weight and relative strength, compared with some other IR materials, can be of benefit. Since it is a toxic material, processing and handling are subject to strict procedures.

MATERIAL PROPERTIES

STINUSEITREPORP LACITPOmc 10.0< mµ33.01 @ noitprosbA kluB -1

Reflection Loss at 10.33µm (Two surfaces) 44% 727.3 mµ33.01 ta xednI evitcarfeR

Change in Refractive Index with Temperature (dn/dT) 14.7 x 10-3 K-1

THERMAL PROPERTIESm W 84 C°02 ta ytivitcudnoC lamrehT -1 K-1 at 273K

063 taeH cificepS01 x 7.5 noisnapxE lamrehT -6 K-1 at 300K

MECHANICAL PROPERTIES aPG 8.48 suludoM sgnuoY

aPM 43.7suludoM erutpuRaPG 58.23 suludoM raehS

mm fgk 057 ssendraH poonK -1

13.0 oitaR nossioP2.5 5 6 8

100

95

90

85

80

75

70

65

60

55

50

45

40

35

30

25

20

15

10

5

0189 11 13 14 15 17 02912174 16103

GALLIUM ARSENIDE GaAs

J kg-1 K-1

Wavelength µm

Tran

smis

sio

n %




Coatings for GALLIUM ARSENIDE GaAsAll CVI Infrared Optics coatings are now radioactive-free


High efficiency antireflection coating for Gallium Arsenide8 - 12µm

DESCRIPTIONThis coating is designed for internal surface (I.S.) applications and offers maximum transmissioncombined with low reflection.


SPECTRAL PERFORMANCETransmission values are for a 1mm thick GaAs substrate which has been coated on both surfaceswith CO 3209TRANSMISSION > 98% (average) from 8 - 11.5µm

Reflection values are for a single GaAs surface coated with CO 3209REFLECTION < 0.5% (average) from 8 - 11.5µm





CO 3209 GaAs 8-12




100

99

98

97

96

95

94

93

92

91

90

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

Wavelength µm

Tran

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n %

Refl

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%

7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0


CO 3229 GaAs 3-5µm


High efficiency antireflection coating for Gallium Arsenide

3.0 to 5.0µm














Transmission values are a for a 1mm thick GaAs substrate which has been coated on two surfaces with CO3229.



100

99

98

97

96

95

94

93

92

91

90

10

9

8

7

6

5

4

3

2

1

0

3.0 3.5 4.0 4.5 5.0

Wavelength µm

Tran

smis

sio

n %

Refl

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%



FILTER DESIGNAll CVI Infrared Optics coatings are now radioactive-free


Band-pass filter for Germanium3.6 - 4.2µm

DESCRIPTIONThis coating is designed for thermal imaging applications and offers maximum transmissioncombined with wide blocking bands.

This coating can operate at 77K and

SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate.TRANSMISSION > 90% (average) from 3.6 – 4.0 µm.TRANSMISSION > 85% (absolute) from 3.6 – 4.0µmTRANSMISSION < 0.1% (absolute) from Visible – 3.4µmTRANSMISSION < 0.1% (absolute) from 4.3 - 6.0µm

This coating is representative of our coating technology and multiple variations can bedesigned to cover the 1 - 7µm band.





This coating is also unaffected by the following environmental testswhich will be performed upon request.



1.0

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

CO 40BP-C4 Ge


contains no radioactive materials.


Wavelength µm

Tran

smis

sio

n %


Longwave-pass filter for Germanium8 - 11µm

DESCRIPTIONThis coating is designed for thermal imaging applications and offers maximum transmissioncombined with a wide blocking band.


SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate.TRANSMISSION > 90% (average) from 8.0 - 11.0 µmTRANSMISSION > 85% (absolute) from 8.0 - 11.0µmTRANSMISSION < 0.1% (absolute) from Visible - 7.2µm









1.0

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0

CO 40LWP-C1 Ge




Wavelength µm

Tran

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n %


Wideband-pass filter for Germanium7.5 - 9.5µm



SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate.TRANSMISSION > 90% (average) from 7.7 - 9.3 µm.TRANSMISSION > 85% (absolute) from 7.7 - 9.3µmTRANSMISSION < 0.1% (absolute) from Visible - 7.0µmTRANSMISSION < 0.1% (absolute) from 10.0 - 14.0µm



ADHESION MIL-C-48497 PARA 4.5.3.1TS1888 PARA 5.1

HUMIDITY MIL-C-48497 PARA 4.5.3.2TS1888

PARA 5.2.1.2

ABRASION MIL-C-48497 PARA 4.5.3.3TS1888 PARA 5.4.1


SALT SOLUTION MIL-C-48497 PARA 4.5.5.2TS1888 PARA 5.2.1.1

TEMPERATURE CYCLE MIL-M-13508C PARA 4.4.4

5.0

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0

CO 40BWP-C2 Ge




Wavelength µm

Tran

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n %


Wideband-pass filter for Germanium7.5 - 9.5µm



SPECTRAL PERFORMANCETransmission values are for a 1mm thick Germanium substrate.TRANSMISSION > 90% (average) from 3.6 – 5.0 µm.TRANSMISSION > 85% (absolute) from 3.6 – 5.0µmTRANSMISSION < 0.1% (absolute) from Visible – 3.4µmTRANSMISSION < 0.1% (absolute) from 5.3 - 6.0µm




HUMIDITY MIL-C-48497 para 4.5.3.2TS1888

para 5.2.1.2





1.0

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

CO 40BWP-C3 Ge




Wavelength µm

Tran

smis

sio

n %


Longwave-pass filter for Silicon2.1 - 5µm



SPECTRAL PERFORMANCETransmission values are for a 1mm thick Silicon substrate.TRANSMISSION > 90% (average) from 2.1 - 5.5 µmTRANSMISSION > 85% (absolute) from 2.1 - 5.5µmTRANSMISSION < 0.1% (absolute) from Visible - 1.9µm









1.0

100%

90%

80%

70%

60%

50%

40%

30%

20%

10%

0%

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

CO 34LWP-C1 Si




Wavelength µm

Tran

smis

sio

n %


Sapphire is an extremely tough infrared transmitting material. Its sharp cut-off makes it a useful substrate for filters transmitting below 6µm.

MATERIAL PROPERTIES

OPTICAL PROPERTIESBulk Absorption @ 2.4µm Reflection Loss at 1.06µm (Two surfaces) 14%

n ,94457.1 on mµ60.1 ta xednI evitcarfeR e 1.74663 Change in Refractive Index with Temperature 13.7 x 10-6 at 2.4µm (dn/dT)

THERMAL PROPERTIESThermal Conductivity at 20°C 278.21Wm-1 K-1 at 300K

914 taeH cificepS01 x 6.5 noisnapxE lamrehT -6 K-1 (para) and 5.0 x 10-6 K-1 (perp) (nominal)


K 392 ta aPM 024suludoM erutpuR aPG 1.841 suludoM raehS

mm fgk 066.1 ot 525.1 sixa c eht ot ralucidnepreP ssendraH poonK -2

Parallel to the c axis 1.670 to 2.000 kgf mm-2

52.0 oitaR nossioP

2.5 3.5 4.0 5.0

100

95

90

85

80

75

70

65

60

55

50

45

40

35

30

25

20

15

10

5

0

9.05.5 6.0 7.0 7.5 8.0 8.54.5 6.5 9.5 10.03.0

0.5mm2.0mm4.0mm

SAPPHIRE

J kg-1 K-1

Wavelength µm

Tran

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n %



Calcium transmits from the UV through to making it a good choice of material for broad-band and multi-band systems. Its sharp cut-off makes it a useful blocking material for energy above 10µm

MATERIAL PROPERTIES

OPTICAL PROPERTIES01 x 8.7 mµ7.2 @ noitprosbA kluB -4 cm-1

%4.5)secafrus owT( mµ5 ta ssoL noitcelfeR 80993.1 mµ5 ta xednI evitcarfeR

Change in Refractive Index with Temperature (dn/dT) -10.6 x 10-6 K-1

THERMAL PROPERTIESm W 17.9 C°02 ta ytivitcudnoC lamrehT -1 K-1

gk J 458 taeH cificepS -1 K-1

01 x 58.81 noisnapxE lamrehT -6 K-1 at 298K

MECHANICAL PROPERTIES aPG 8.57 suludoM sgnuoY

aPM 5.63suludoM erutpuR aPG 77.33 suludoM raehS

mm fgk 3.851 ssendraH poonK -2

62.0 oitaR nossioP

100

80

60

40

20

0

3010 155 403 20

1mm2mm6mm10mm100mm

CALCIUM FLUORIDE CaF2

10µmFluoride

Wavelength µm

Tran

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n %



Magnesium Fluoride is a very hard, durable material transmitting from the UV to above 6µm. This makes it a useful material for broad-band and multiband systems and also for optics which are required to withstand severe environmental conditions.

MATERIAL PROPERTIES

OPTICAL PROPERTIES01 x 04 mµ7.2 @ noitprosbA kluB -3 cm-1

Reflection Loss at 4.0µm (Two surfaces) 5.1%n mµ504.0 ta xednI evitcarfeR o = 1.3836, ne = 1.3957

Change in Refractive Index with Temperature (dn/dT) 2.3 (para) 1.7 (perp) at 0.4µm

THERMAL PROPERTIESm W )prep( 6.33 )arap( 12 C°02 ta ytivitcudnoC lamrehT -1 K-1

gk J 3001 taeH cificepS -1 K-1

01 x )prep( 9.8 )arap( 7.31 noisnapxE lamrehT -6 K-1 at 298K


aPM 94suludoM erutpuR aPG 66.45 suludoM raehSmm fgk 514 ssendraH poonK -2

672.0 oitaR nossioP

100

80

60

40

20

0

3010 155 403 20

1mm3mm5mm

MAGNESIUM FLUORIDE MgF2

Fluoride

Wavelength µm

Tran

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n %


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