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Product Details

Product Name: GL SPECTIS 1.0
Product NO:
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Precise Light Measuring Technology

This high-quality and easy to operate device gives you all you need for reliable light measurement. Implementing this practical instrument in your development and production environments can help you improve the light quality of your product and accelerate development.

With its coded and interchangeable measurement head, the GL Spectis 1.0 can be combined with optical probes, integrating spheres or goniometers to measure any type of light sources, displays as well as LED lights. Thanks to its high sensitivity and accuracy, it is the perfect solution for light measurement.

Spectis 1.0 Handheld Spectroradiometer Usage

The Spectis 1.0 handheld spectroradiometer was developed to allow consultants outside the laboratory to verify the quality of light, but providing a portable, dependable and repeatable light measurement device. Our design focus was simple – to provide lighting professionals with a practical device they could trust. No need to send everything to the main laboratory for testing when you need to measure and decide onsite.

This device is equipped with the Hamamatsu sensor to provide stability, low noise electronic to increase its dynamic range, temperature sensor to monitor and compensate for the dark current shift. We added the system of interchangeable accessories to support different types of measurements. Finally, it is equipped with a precisely designed measurement head to provide reliable lighting measurement. Initially used as a handheld device, despite its small size, it is a powerful instrument which becomes a part of many different light measurement systems we provide today.

Spectis 1.0 Handheld Spectroradiometer Features

 Ideal for LEDs

The GL Spectis 1.0 spectrometers optical system uses a miniature collimating lens with nano-imprint of diffraction lines and a CM OS image sensor working in the range of 340-780nm. It is a miniature low stray light system providing a 1.7nm data acquisition interval which is ideal for the measurement of LEDs, OLEDs and other light sources in the visual range.

Low Noise, High Speed Data

The electronic board ensures the proper speed of data transfer and very low noise. The temperature sensor installed on the board monitors the change of the ambient temperature and its influence on the measurement stability.

 Software Corrections

The SP-X driver software includes any necessary correction procedures to reduce stray light, bandpass error, noise level and background level to achieve the best spectra representation and highest measurement accuracy. The data acquired are calculated according to CIE norms to obtain the right color calculation for LED and other light sources.

Spectis 1.0 Handheld Spectroradiometer Measurement

Our preconfigured, individually calibrated spectral light meters deliver fast and precise results for nearly any practical light measurement application. Measure in seconds and review the results directly on the handheld display or dig deeper with the included software. Using the Spectis Touch, you can measure any or all of the following optical quantities:

  • Lux – irradiance
  • Lumen – luminous flux
  • CRI – color rendering index according to the CIE
  • CCT – the color temperature according to standard CIE
  • Color – the chromatic coordinates of the CIE 1931 and CIE 1964
  • Fidelity and Gamut – method for evaluating light source color rendition according to TM-30 IES standard
  • PAR/PPFD – photosynthetic active radiation measurements for horticulture
  • EML – biological effects of light on humans in equivalent melanopic lux
  • mWatt – radiation energy
  • + many more!

Whatever your application, our precise SPECTIS 1.0 is up to the task.

Spectis 1.0 Specifications

Spectral range 340-780nm / 640-1050nm
Detector CMOS image sensor
Number of pixels 256
Physical resolution ~ 1.7nm
Wavelength reproducibility 0.5nm
A/D conversion 16 bits
Signal to noise ratio 1000:1
Stray light 2*10E-3
Optical FWHM 12nm
Spectroradiometric accuracy* 4%
Measurement uncertainty of color coordinates (x.y) 0.0015
Illuminance** 1 lx to 200.000 lx
Irradiance 0.03 to 600 w/m2
Luminous Flux (w/ Opti Sphere 48mm) 0.015 to 150 lm
Luminance (w/ Opti Probe 1.0.10) 10 to 200,000 cd/m2
Physical Specifications
Connector for optical fiber SMA905D
PC interface USB 2.0 standard
Power consumption < 100mA
Ambient temperature 5-35 °C
Dimensions 115mm x 72mm x 19mm
Weight 120g

*Absolute measurement uncertainty after calibration. The expected uncertainty corresponds to a coverage probability of 95% and the coverage factor k=2

**Measurement below 5 lx may require customization to obtain noted specification. Please discuss with technical sales.

Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.


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