Tools | Test Equipment | Safety | Mar 13, 2018

Photobiological Measurement System from GL Optic for Highest Safety Standard

The photobiological safety measurement system from GL Optic – in short: GL PSM System 200-800 nm is the world's first mobile and preconfigured measurement system for monitoring and assessing the blue light hazard of all types of lamps. Blue light hazard (photoretinitis) is defined as the potential risk for a photochemically-induced retinal injury resulting from electromagnetic radiation exposure at blue wavelengths of 400-500 nm.

Today, a great proportion of our lives takes place in artificially designed spaces and under artificial light, whether indoors or outdoors. In addition, we use PCs, tablets, and smartphones with illuminated displays on a daily basis. As a result, contrary to our natural circadian rhythm, we are often exposed to artificial light until late in the evening, which is produced by light sources with a distinct blue component. Several studies have shown that the blue light contained in LED lights has a negative effect on the sleep rhythm of humans. In addition, influences on visual performance are also confirmed as even the retina can be damaged by permanent exposure to visible blue light.

Up to now, it has been quite complicated and associated with extensive measurement configurations such as the use of a double monochromator to measure and evaluate the blue light hazard of lamps and luminaires. The new GL PSM system from GL Optic simplifies such measurements by pre-configuring the system for hazardous radiation measurements and risk assessment. Due to the plug-and-play concept, enabling the spectrometer and software to automatically detect accessory equipment, precise measurements can be performed within minutes.

The user is supported by a tool used for the first time for photobiological measurements: a software assistant that guides the user step-by-step through the individual measurement process. Inaccuracies caused by faulty measurement setups or incorrect configurations can be avoided and accurate measurements can be achieved.

The GL PSM system performs measurements according to the standards IEC (EN) 62471 (Photobiological safety of lamps and lamp systems) and EN 14255-1 (Measurement and assessment of personal exposures to incoherent optical radiation). The system consists of a high-resolution, factory-calibrated grade spectrometer, the GL SPECTIS 5.0 Touch (UV-VIS) 200-800nm, a specially designed irradiance probe and a radiance telescope that recreates the properties of the human eye according to the above mentioned standards. The system also includes the GL SPECTROSOFT light measurement software for extensive light analyses and evaluations.

Precise and simplified light measurements even without the use of complex measurement setups with double monochromators are now available with the GL PSM system from GL Optic. For applications that require an extended spectral range, a 2-channel measurement system covering a range of 200-2500 nm is available.

For additional information, visit GL Optic  at the Light + Building in Frankfurt in Hall 4.1, Booth B79, or visit the company's website at www.gloptic.com

About GL Optic:

GL Optic develops, manufactures and markets a wide range of light measurement solutions that work together seamlessly and are easy and intuitive to use. These include spectrometers, integrating spheres, goniometers, programmable reference light sources, thermal and electrical control units as well as corresponding analysis software.

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