Download - Oli Durney LBTI Optical Engineer Steward Observatory University of Arizona

OFD 1

Oli DurneyLBTI Optical EngineerSteward ObservatoryUniversity of Arizona

NIC Aperture, Pupil, and Filter Wheel Positions

Rev. 2.3September 19, 2011

OFD 2

Revision History PowerPoint File Name Version Date Modified Changes from Previous Version

NIC M

echanisms

NIC Wheel Positions v1.0.ppt 1.0 01-26-11 Original version, PhaseCam wheels (Pupil, FW1, FW2, ND)

NIC Wheel Positions v1.1.ppt 1.1 01-27-11 Include CAD drawing of ND wheel, added Prism & Optics wheels

NIC Wheel Positions v1.2.ppt 1.2 02-01-11 Flip Prism and Optics CAD orientations, colorize filters, change titles

NIC Wheel Positions v1.3.ppt 1.3 02-03-11 Update Notes, add Optics & Prism cell exploded views, add NAC wheel, re-order slides

NIC Wheel Positions v1.4.ppt 1.4 02-15-11 Add LMIRCam Filter wheels #1-4, add LMIRCam Aperture wheel

NIC Wheel Positions v1.5.ppt 1.5 02-21-11 Revise ‘drawn as’ comment, add red circle for optical axis and Note

NIC Wheel Positions v1.6.ppt 1.6 03-08-11 Change filters in LMIRCam FW#2

NIC Wheel Positions v1.7.ppt 1.7 04-20-11 Add Large & Small Beam Diverter, Image Dichroic, ID 3D view, Left & Right Shutter

NIC Wheel Positions v1.8.ppt 1.8 04-20-11 Add ‘controlled by’ comment, add NAC Source

NIC Wheel Positions v1.9.ppt 1.9 04-22-11 Add Shutter 3D views

NIC Wheel Positions v2.0.ppt 2.0 04-28-11 Reverse rotation direction and order of NAC wheel, add pinholes in Pos 3 & 6

NIC Wheel Positions v2.1.ppt 2.1 04-29-11 Reverse rotation direction and order of LMIRCam FW#2, Add Revision History

NIC Wheel Positions v2.2.ppt 2.2 05-03-11Add ‘Steps’ column to all slides, situate ‘Home’ in between Pos 5&6 on NAC slide, revise text on Image Dichroic slide, add red optical axis to all other slides, revise ‘Note’ accordingly

NIC Wheel Positions v2.3.ppt 2.3 09-19-11 Add 12-hole and 24-hole aperture masks in Pos 6&7 of LMIRCam FW#1, illustration shows installed orientation of hole patterns

OFD 3

ND Wheel - Assembly• Neutral Density filter set: P/N FX90-0100 from Janos

Technology

• Drawn as viewed with cover plate removed from Access Port side (side facing PICNIC Detector)

• CW rotation of motor = CW rotation of wheel

• Controlled by Motor Box #2, Drive #1

Position Steps Description Dimensions

1 (Home) Open =25.4mm

2 OD=0.50, T=31.62% =25.4mm, t=1mm

3 OD=1.00, T=10.00% =25.4mm, t=1mm

4 OD=2.00, T=1.00% =25.4mm, t=1mm

5 OD=3.00, T=0.10% =25.4mm, t=1mm

NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position, Pos 1 will be replaced with an A/R coated ZnSe window

1

2

34

5

CW

OFD 4

Optics Wheel – Assembly• CaF2 re-imaging lenses from ISP Optics

• Drawn as viewed with cover plate removed from flat side (side facing PICNIC Detector)



NOTE: Optical Axis (Exit Port) is shown in red and is located at Position 1 when Wheel is in the Home position


1 (Home) Open Open

2 Dual Large Lenses =9.5mm, t=2.8mm

3 Open Open

4 Mixed Large/Small =9.5mm, t=2.8mm

Lenses =8.5mm, t=2.8mm

5 Open Open

6 Dual Small Lenses =8.5mm, t=2.8mm

43

1

5

2

6

CW

OFD 5

Optics Wheel – CellsDual Large Lenses Dual Small LensesMixed Large/Small Lenses

OFD 6

Prism Wheel - Assembly• Neutral Density filter set: P/N FX90-0100 from Janos

Technology

• Drawn as viewed with cover plate removed from Baffle Tube side (side facing Field Lenses)


• Controlled by motor Box #2, Drive #3


1 (Home) Open Open

2 Dual Triplet Prisms 12x12mm

3 H Filter =25.4mm

4 Single Triplet Prism 12x12mm

with H Filter

5 K Filter =25.4mm

6 Single Triplet Prism 12x12mm

with K Filter

CW1 4

5

23

6

NOTE: Optical Axis (Entrance Port) is shown in red and is located at Position 1 when Wheel is in the Home position

OFD 7

Prism Wheel – CellsDual Triplet Prisms Single Triplet Prism with Filter

OFD 8

NAC Aperture Wheel• ZnSe lenses and mirror from Edmund Optics

• Drawn as viewed from cryostat Window side

• CWW rotation of motor = CWW rotation of wheel


Position Steps Name Size

1 (Home) 0 Open 42.86 x 42.86mm

2 100000 ZnSe Lens and 45° =25.4mm

Fold Mirror

3 200000 5 mm Aperture =25.4mm

4 300000 Znse Lens =25.4mm

5 400000 3x3 Grid of Pinholes 36.46 x 36.46mm

=1mm, d=8.94mm

6 500000 50 m Pinhole =25.4mm


1

653

4

2CCW

OFD 9

NAC Source Slide• Wires installed on 03-07-11

• Drawn as viewed from cryostat Window side

• CW rotation of motor = vertical translation of the slide ??


Position Steps AWG Size

1 30 0.0100”

2 40 0.0310”

3 40 0.0310”

4 48 0.0012”

5 48 0.0012”

6 30 0.0100”

7 40 0.0310”

8 40 0.0310”

9 48 0.0012”

10 48 0.0012”

1

2

3

4

5

6

7

89

10

Move

(Home)

NOTE: Pos 6-10 are not currently working (05-03-11). However, the wires are installed.

1

2

3

4

5

6

7

89

10

Back View

OFD 10

LMIRCam Filter Wheel #1• Single Apertures installed on 01-21-11, Hole patterns

installed on 09-16-11

• Drawn as viewed with cover plate removed from Baffle Tube side (side facing LMIRCam Dichroic)

• CW rotation of motor = CCW rotation of wheel

• Controlled by LMIRCam Motor Box, Drive #1

1

1195

3 CCW


1 (Home) Open 25.4mm

2 Small Dual Aperture ~7.19mm

3 Large Dual Aperture ~7.49mm

4 Left Aperture ~8.16mm

5 Right Aperture ~8.21mm

6 24-hole Pattern 25.4mm

7 12-hole Pattern 25.4mm

8 Open 25.4mm

9 Open 25.4mm

10 Open 25.4mm

11 Pinhole ~0.33mm

12 Blank 25.4mm

72

4

6 8

10

12


OFD 11

LMIRCam Filter Wheel #2• All filter retainer rings adjusted on 01-19-11, H & J filters

installed on 03-08-11

• Drawn as viewed with cover plate removed from flat side (side facing LMIRCam Baseplate)

• CCW rotation of motor = CCW rotation of wheel


7

5311

9 CCW



2 Ks (2.00-2.32 m) 25.4mm

3 H (1.50-1.81 m) 25.4mm

4 J (1.18-1.36 m ) 25.4mm

5 L-spec (2.81-4.00 m) 25.4mm

6 M-long (4.60-5.86 m) 25.4mm

7 Std ‘M’ (4.60-4.97 m) 25.4mm

8 L-long 2 (3.81-4.05 m) 25.4mm

9 L-long 1 (3.51-4.06 m) 25.4mm

10 Std ‘L’ (3.41-3.99 m) 25.4mm

11 L-short (3.10-3.51 m) 25.4mm

12 Blank 25.4mm

18

10

12 2

4

6


OFD 12

LMIRCam Filter Wheel #3• New filter (Pos 10) installed on May 11, 2010

• Drawn as viewed with cover plate removed from Baffle Tube side (side facing Biconic #2)

• CW rotation of motor = CCW rotation of wheel


10

862

12 CCW



2 H2O Ice 1 (2.96-3.12 m) 25.4mm

3 H2O Ice 2 (3.01-3.15 m) 25.4mm

4 PAH 1 (3.26-3.31 m) 25.4mm

5 PAH 2 (3.38-3.43 m) 25.4mm

6 Br- (4.02-4.09 m) 25.4mm

7 Br- off (3.97-4.04 m) 25.4mm

8 L-cont 1 (3.13-3.20 m) 25.4mm

9 L-cont 2 (3.39-3.54 m) 25.4mm

10 L-cont 3 (3.55-3.64 m) 25.4mm

11 L-cont 4 (3.68-3.88 m) 25.4mm

12 Blank 25.4mm

411

1

3 5

7

9


OFD 13

LMIRCam Filter Wheel #4• PK-50 Blocker not installed because of OD clearance

concern (substrate delivered with 2 chips)

• Drawn as viewed with cover plate removed from Baffle Tube side (side facing detector)



10

1226

8 CW



2 Blank 25.4mm

3 PK-50 Blocker 25.4mm

4 Pupil Imaging Lens (ZnSe)12.7mm

5 Open 25.4mm

6 Open 25.4mm

7 Open 25.4mm

8 Open 25.4mm

9 Open 25.4mm

10 Open 25.4mm

11 Open 25.4mm

12 Open 25.4mm

49

7

5 3

1

11


OFD 14

4

3CW

LMIRCam Aperture Wheel• New filter (Pos 10) installed on May 11, 2010

• Drawn as viewed with cover plate removed from side opposite cryo-motor (side facing Biconic #2)




1 (Home) Open 50.8x50.8mm

2 Open 50.8x50.8mm

3 Pinhole 1mm?

4 Blank 50.8x50.8mm

1

2


OFD 15

Large Beam Diverter Slide• Two (2) possible configurations for the Beam Diverter –

Large (2-position) and Small (3-position)

• Drawn as viewed from entrance Window

• CW rotation of motor = right translation of the slide ??



1 (Home) Open 72x57mm

2 Large Dichroic 74x58x7mm

1 2Position of 1 when 2 is centered along the optical axis

Move

NOTE: Position 1 nominally houses the Large Mirror. It is currently removed to allow an open path to LMIRCam

Optical Axis is shown in red and is located at Position 1 when Slide is in the Home position

OFD 16

Image Dichroic Slide• Drawn as viewed from entrance Window

• CW rotation of motor = right translation of the slide ??



1 (Home) Open 72x57mm

2 Large Dichroic 74x58x7mm 1 2

Move

NOTE: Optical Axis is shown in red and is located at Position 1 when Slide is in the Home position

OFD 17

Image Dichroic AssemblyFront View

Side View

ISO View

OFD 18

Right Shutter• Shutter located in front of Fixed Nulling Mirror




1 (Home) Vertical – half open 20mm

2 Closed 20mm

3 Horizontal – half open 20mm

4 Open 20mm

1 2

3 4NOTE: Optical Axis is shown in red

OFD 19

Left Shutter• Shutter located in front of Field Steering Mirror




1 (Home) Vertical – half open 20mm

2 Closed 20mm

3 Horizontal – half open 20mm

4 Open 20mm

1 2

3 4NOTE: Optical Axis is shown in red

OFD 20

Shutter AssembliesLeft Shutter Right Shutter

OFD 21

Additional Slides

OFD 22

Small Beam Diverter Slide• Two (2) possible configurations for the Beam Diverter –

Large (2-position) and Small (3-position)




1 Open 42x30mm

2 (Home) Small Mirror 52x32x9.53mm

3 Small Dichroic 54x38x7mm

2 3

Move

1

Move

NOTE: Position 1 is Open when slide is moved to Position 2. It is Small Mirror when slide is moved to Position 3

Optical Axis is shown in red and is located at Position 2 when Slide is in the Home position