GL Optic Light measurement solutions created by JUST Normlicht

About us:

GL Optic is the brand name of JUST Normlicht GmbH Germany the world's leading supplier of the standardized light solutions for printing and graphic arts industries. For more than 30 years JUST has been developing the innovative solutions which are of the highest quality in standard-light viewing conditions.

The spectral light measurement project was created at the end of 2009 by Michael Gall the owner and CEO of JUST Normlicht in cooperation with Jan Lalek, a physicist who had previously partnered with JUST in the creation of the innovative LED tunable standard lighting systems. They also developed together the light quality assurance instruments installed at the JUST spectral measurement laboratory.

GL SPECTIS seriesThe spectral measurement instruments

New !

GL SPECTIS 1.0• High sensitivity and precise calibration• Automatic base line correction and low noise level• Spectral Range 340–750 nm or 640 -1,100nm• Data Point Intervall 1.7nm• Ideal for measurement of LEDs and OLEDs• Includes SPX Driver Software

Different accessories:• Display Sensor for Luminance measurements of displays and

OLEDs• Integrating Spheres For Luminous Flux and Radiant power

measurement of single LEDs.

GL SPECTIS 1.0 touchpractical and reliable light measurement

• Built off of GL SPECTIS 1.0• Andriod Based Operating system• Battery operated for up to 6 hours• Wi-Fi, USB and MicroSD card communication• CCT, CRI, Lux, Chromaticity Coordinates on screen

Different accessories:• Display Sensor for Luminance measurements of displays and

OLEDs• Integrating Spheres for Luminous Flux and Radiant power

measurement of single LEDs.

GL SPECTIS 5.0 touch High class Spectroradiometer with high resolution and extended spectral range

• Optical stray light reduction (OSR)*• Back-thinned CCD Sensor with spectral range from 200

to 1050 nm.• High sensitivity and precise calibration

Ideal for evaluation of light sources and optical components like lenses, filters etc. Can be used for measurements and evaluation conforming to Photobiological Safety of Lamps standard

GL SPECTIS 5_0 Manual

GL SPECTIS 8.0Advanced Spectroradiometer with Optical Stray Light Reduction* for precise light measurement

• back thinned CCD Image Sensor with cooling• Hi sensitivity and low stray light thanks to transmission

Grating• Precise calibration

Different accessories available: • Integrating spheres with auxiliary light source for Flux

measurement of LEDs according to CIE 127 standardMeasurement of different light sources: fluorescent tubes, LEDs, OLEDs, filters, lenses and other production process control measurements.

GL OPTI SPHERE 48For single LED testing

GL OPTI SPHERE 205For LED modules and single LEDs

GL OPTI SPHERE 500For retrofit LED lamps and LED modules

GL OPTI SPHERE 1100For large LED lamps and large LED modules

GL OPTI SPHERE 2000For large LED luminaires and LED components

SUMMARY

“From single LED emitter measurement to complete luminaire testing, GL Optic provides comprehensive light measurement solutions.”

What can we measure?

Illuminance measurement [lux] Irradiance [ mW/m^2/nm ]

What is illuminance? It is the total luminous flux incident on a surface, correlated with human brightness perception. How is it measured and which unit is used? It is measured with a spectrometer with a cosine-corrected measurement probe called a diffuser. It is placed on an examined surface and measures the luminous emmitance in lux [lx]. What does it give us? It is a very practical method of determining the level of light on surfaces such as those of working tables, pavements, roads or shelves. Illuminance is inversely proportional to the square of the distance from the source.

Illuminance measurementIt is measured with a spectrometer with a cosine-corrected measurement probe called a diffuser. It is placed on an examined surface and measures the luminous emmitance [lx].

Lux [lx]

Luminous Flux [ lm ]Radiant power [ W ]

What is a luminous flux? It is the total measure of the perceived power of light in relation to the spectral sensitivity of the human eye. How do we measure it? Luminous flux is measured with a spectrometer connected to an integrating sphere. This method allows to determine the total amount of energy emitted by an examined source in all directions. The SI unit of luminous flux is lumen [lm]. What does it give us? It allows to determine the total amount of light emitted by a source in every direction, taking into account the sensitivity of the human eye. Such measurement provides a basis for calculating other parameters and can be used for comparing different light sources.

Luminous Flux [ lm ]Luminous flux is measured with a spectrometer connected to an integrating sphere.

Lumen [lm]

Luminance measurement [ cd/m^2 ]What is luminance? Luminance is a photometric measure of luminous intensity of light that is emitted or diffused by a particular area. How is it measured and which unit is used? It is measured with a measuring adapter with a lens directed towards the examined surface. The SE unit is candela per square metre [cd/ m²]. What does it give us? It allows to assess the brightness of a particular surface and is especially useful when measuring the brightness of screens and displays, airport aprons and runways, roads lighted with street lamps etc.

Luminance measurement [ cd/m^2 ]It is measured with a with a lens directed towards the examined surface.

[cd/m²]

Typical applications

MEASUREMENT OF SINGLE LEDsSmall and Precise LEDs measurement solution

Did you know that electric current, electronic drivers and even heat may negatively affect lighting properties of LEDs?

These are some of the reasons why measuring the performance of single LEDs may be necessary once they are installed on PCB.

RETROFIT/REPLACEMENT LED LAMPSPreconfigured setup for flux measurement

Whether you import or develop retrofit or new LED fixtures there are always many questions which you need to find answers to. What is the real performance of replacement LED lamps? Are they bright enough to suit my needs?

Our solution will provide you with all the answers you need – just take the measurement inside the GL OPTI SPHERE 500 and check the Radiant Power emitted by the lamp.

LUMINAIRES MEASUREMENTComplete and affordable system for LED luminaires testing.

Did you know that all parts of modern lighting fixtures can influence the performance of LEDs inside?

Mirrors, lenses, diffusing materials and heat control systems can change color, lumen value or a lifetime of your products.

Adobe Acrobat Document

GL SPECTRO SOFT

SOFTWARE LICENSES

- GL SPECTRO SOFT BASIC - GL SPECTRO SOFT PROF- GL SPECTRO SOFT LAB--------------------------------------- GL SPECTRO SOFT CAL

Adobe Acrobat Document

Need more details?

• Call Saelig Co. Inc.• 585-385-1750• Or sales@saelig.com