GL SPECTIS 1.0 touch - Senze-Instruments Benelux

Senze-Instruments BENELUX
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Process & Quality Control

GL SPECTIS 1.0 touch

Graphic & Printing Industry > Light measurement
The world’s first and most powerful handheld spectral light meter
Light Spectrometer for immediate evaluation of illuminance, color and flicker metrics in one device
Unique Features:
  • Completely portable device
  • Color LCD Touch screen
  • Communication features: USB cable, SDcard slot
  • Android based operating system
  • Approx. 4 hours on battery
  • contains the analysis software, with on-screen display of results
  • data can be exported in tabular form.
  • Application : Natural Light, Leds, halogen light, etc

• illumination value - Lux
• luminous flux - Lumen
• color rendering index according to CIE - CRI
• correlated color temperature according to CIE standard - CCT
• color coordinates according to CIE 1931 and CIE 1964 - COLOR
• radiant power value - mWatt and much more… our highly portable and precise GL SPECTIS 1.0 Touch with optional accessories is the perfect solution.

GL SPECTIS 1.0 touch

If you are looking for reliable, precise and intuitively operated spectral instrument for light assessment, our state-of-the-art light measuring tool GL SPEC TIS 1.0 touch is the best answer to all your spectral light measurement needs.
Now not only experts can obtain dependable light measurement data – our preconfigured, individually calibrated measurement instruments deliver fast and precise results, and the included software is intuitive and easy to navigate. If you need to measure:
  • Lux – illumination value
  • Lumen – the luminous flux
  • CRI – color rendering index according to CIE
  • CCT – correlated color temperature according to CIE standard
  • COLOR – color coordinates according to CIE 1931 and CIE 1964
  • mWatt – radiant power value
and much more…


Irradiance measurement [mW/m2 ]

All spectrometers offered by GL Optic are calibrated and provide absolute values.
The cosine corrected measurement head is designed for the precise measurement of illumination levels and conforms to the requirements of DIN 5032 Part 7 Class B. According to Lambert’s Cosine Law the radiant intensity observed at a “Lambertian” surface is directly proportional to the cosine of the angle between the incoming light and the normal to the surface.
Therefore it is absolutely necessary for the illuminance meter to include a cosine correcting head to eliminate measurement errors which may arise when the light source is not directly above the sensor, but at any angle within the hemisphere of measurement.
What is illuminance?
It is the total luminous flux incident on a surface, correlated with the human brightness perception.

How is it measured and which unit is used?
It is measured using a spectrometer with a cosine-corrected measurement probe called a diffuser. It is placed on an examined surface and measures the luminous emittance in lux [lx].

What does it give us?
It is a very practical method of determining the level of light on surfaces like work tables, pavements, roads or shelves.
Illuminance is inversely proportional to the square of the distance from the source.
Technical data sheet     

Spectral range                  
340-780nm (UVa-VIS)  / 640-1050nm ( VIS-NIR)
CMOS image sensor
Numer of pixels          
Physical resolution         
~ 1.7nm / ~ 1.8nm
Wavelength reproducibility  
Integration time          
5ms to 100s
A/D conversion                  
16 bits
Signal to noise ratio          
Stray light       
Spectroradiometric accuracy  
Measurement uncertainty of color coordinates (x.y)
lithium-ion battery 1400 mAh
Power consumption
~ 640 mA
Power supply
Input: AC 100-240V 50/60 Hz 0.15 A    /    Output: 5 V-1 A
1 – 200,000 lx  (for white Led)
20 – 200,000 mW/m²
Luminous flux (with GL OPTI SPHERE 48)
0.03 – 150 lm
Radiant power (with GL OPTI SPHERE 48)
0.03 – 500 mW
Luminance (with GL OPTI PROBE 1.0.10 LUMINANCE)
3 – 80,000 cd/m
PC interface
USB 2.0 standard
Display full color
240x320 px
Micro SD card
Irradiance measurement
Ambient temperature
74 mm x 146 mm x 24 mm
315 g
+ LUMINOUS FLUX MEASUREMENT [lm] Radiant power measurement [mW]
Measure radiant power, luminous flux, color temperature, color coordinates and color rendering index (CRI) of LEDs.
GL OPTI SPHERE 48 for single LEDs
GL Optic offers a unique solution for luminous flux measurements, color CRI and TM30 rendering properties of LEDs of single LEDs.
GL OPTI SPHERE 48 is an accessory that can be combined with our spectrometers to create a portable measurement set.
Did you know that electric current, electronic drivers and even heat may negatively affect the lighting properties of LEDs?
These are some of the reasons why you would need an integrating sphere to measure the performance of single LEDs once they are installed on the PCB.
This compact and portable set can be carried in a case, so you can bring it to meetings with your suppliers or customers.
What is luminous flux?
It is the total measurement 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 us 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 us to determine the total amount of light emitted by a source in every direction, taking into account the sensitivity of the human eye.
Such a measurement provides a basis for calculating other parameters and can be used for comparing different light sources
Luminance and Radiance
Available luminance optical probes can be connected and calibrated with our device to measure flat emitting surfaces like displays, screens and back lights.
The coding system installed in our spectrometer will automatically download calibration file and measure cd/m2.
GL OPTI PROBE 1.0.10 LUMINANCE for display measurements
GL OPTI PROBE 1.0.10 LUMINANCE is an accessory which is designed to be used with our GL SPECTIS 1.0 Touch for luminance measurements of flat displays, LCD and LED panels, as well as plasma FPDs.
It is also the perfect solution for testing projection displays as well as OLED light sources.
The measurement provides accurate readings of luminance [cd/m2 ] and color coordinates (x, y, Y) conforming to CIE standards.
This accessory connects to the spectrometer with fiber optic connection and can be installed on a tripod at a distance from the test device or put directly on the LED or OLED surface to measure cd/m2, SPD and radiance.

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 what unit is used?
It is measured with a lens directed towards the examined surface. The SE unit is candela per square meter [cd/m²].

What does it give us?
It allows us 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 lit with street lamps, etc.
GL SPECTIS 1.0 Touch + Flicker Usage
Every Important Metric, One Device
TV and Studio Light Flicker
Use our GL Spectis 1.0 Touch light spectrometer + Flicker to measure very high frequencies up to 12 kHz which are important for broadcasting and studio lighting evaluation. This will also include CCT, CRI and TLCI indices verified.

When the first “flicker-free” football stadium lighting was installed at Chelsea Arena in the UK, GL Optics was asked to provide a device which could be used as an auditing tool to check the newly installed lighting.
The contractor needed to evaluate the photometric and colorimetric values including illumination (lx), color temperature (CCT), color rendering properties of LED (CRI), television index (TI) and additionally verify if it was a flicker-free installation.
This project triggered the development of the Spectis 1.0 Touch + Flicker, improving on our existing GL Spectis 1.0 Touch by integrating an additional electronic circuit board with the fast photodiode to capture the optical flicker characteristics.
The result is possibly the best hand-held flicker spectroradiometer on market.
Covering an exceptional wide range of frequencies with accuracy equal to some laboratory devices.
GL Optic takes an active part in a Philips Working Group which is focused on establishing new flicker metric standards throughout the industry.
Thanks to this direct cooperation we have an opportunity to compare and evaluate our accuracy daily using the reference standard provided by Philips.
We are also able to include the latest flicker metrics like Flicker Index, Flicker Percent and the Flicker Ratio together with the latest SVM (Stroboscopic Visibility Measure) – a new standard to assess how the lighting installation might influence human visibility performance.
The GL Spectis 1.0 T Flicker meter is an intuitively operated touch screen portable light spectrometer, equally suited to the lab as it is in the field.
With a range of software analysis capabilities and extensive suite of accessories, this device is in a category all its own.
GL SPECTROSOFT is an optional software package.
It is a helpful tool for laboratory applications, as well as for field work in production quality control and for general light assessment purposes.
The software interface gives the user quick access to useful information and functions.
The program calculates color coordinate values according to CIE standards.
Other calculations include correlated color temperature CCT, chromaticity error, peak wavelength, dominant wavelength, color rendering index CRI (CIE 13.3).
Additionally it can calculate scotopic and photopic values, PAR and PPFD, McAdam’s ellipses and much more...

• MacAdam ellipses and Duv +/-
• PASS/FAIL function for production applications
• Personalized report generator using templates prepared with any text editor
• Peripheral devices management such as current sources, power supplies, TEC controllers
• Command line for LabVIEW™ and other systems
• Lighting Audit, a tool which uses plans  from the CAD system and verifies lux levels
• Spectrum Mixer for the measuring of various spectra and simulating the photometric performance of color and spectrum mixing
• TM-30-15
• Measurement of LEDs compliant with CIE 127:2007 and IESNA LM-79-08
• Absolute or relative measurements
• Flexible data interpretation
• Helpful tools for easy analysis and interpretation of measured spectra
• Calculation of metamerism index MI Index (CIE 51.2)
• Measurement procedure conforming to the ISO 3664:2009
• Comparison window: presentation of the collective measurements chart
• Selected Results window: presentation of selected results
• Binning Tool: brightness and color groups selection for LEDs
• Transmission and Reflection measurement
GL Spectrosoft Usage
GL Spectrosoft can calculate, evaluate, present or report such parameters as: CCT, chromaticity error, peak wavelength, dominant wavelength, CRI, color coordinate values according to CIE standards, ISO, Metamerism Index, PAR, PPF, PPFD, photobiological safety, binning, MacAdam ellipses and much more…
This light measurement software gives a user the opportunity to experiment using collected data: to test them (e.g. PAS/FAIL), to analyze them according to international standards (CIE, ISO etc.), compare them with other data (reference window) and make calculations using different parameters (e.g. counting luminous intensity values).
One Platform, All Devices
Spectrosft works as a plug-and-play tool for all our spectrometers, integrating sphere systems or goniometer systems. Our solutions are designed to scale with your business and eliminate unnecessary learning curves that come with changing software.
Software Levels
GL Spectrosoft is a complete software suite to analyze, interpret and present your results.
Choose the license level suitable for your needs.

Free of charge* license, supporting entry-level applications.

Entry-level light analysis and reporting for users with basic light evaluation needs.

Powerful light analysis for professional lighting evaluation and advanced reporting capabilities.

Laboratory quality tools for advanced spectral analysis, comparisons, testing and customized measurement setups.
Delivery full measurement set including:

GL SPECTIS 1.0 Touch - illuminance spectrometer, usb cable, power supply, leash, display protection foil 4 GB micros SD card & case

Optional accessories  :

• GL OPTI SPHERE 48 - integrating sphere for flux measurement - for single LED measurements

• GL OPTI PROBE 1.0.10 LUMINANCE - luminance measurement accessory


By selecting a GL Optic Light Measurement System, you are choosing one of the most accurate, reliable, precise and intuitively operated spectrometers and light measuring technology available in the market today.

When you purchase a GL SPECTIS 1.0 Touch system, if you buy optical accessories at the same time as the instrument, they will be delivered calibrated, ready to use and will give you absolute measurements.
If you wish to purchase other accessories at a later date, their use without recalibration by GL Optic of the instrument/accessories set will provide you with relative values.

All GL Optic equipment and SPECTROSOFT software is fully guaranteed, however, as with all precision light measurement instruments, they require regular expert maintenance, re-calibration and software updates to maintain optimum performance within the manufacturer’s specifications and tolerances.
GL Optic offers their customers fast and professional service for equipment support, maintenance and repairs.
We offer the industry’s most extended maintenance program to help keep your instruments running like new.
An extended 5-year warranty system is available for customers who wish to opt for regular calibration of their instruments at the GL Optic laboratory.
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