New solutions for characterizing SSL and laser light sources at electronica 2018

In all aspects of life, classical light sources are now being superseded by SSL (solid state lighting) sources. The latter enjoy widespread use not only in general lighting, but also in street lighting or growth-stimulating lighting for plant cultivation (urban farming, multi-layer cultivation). In the development and production of these light sources, it is crucial to precisely determine their spatial radiation properties with respect to an eco-friendly application. For this purpose, Instrument Systems developed the array spectroradiometer, which in combination with a goniometer enables angle-dependent measurements. The new LGS 650 goniometer, to be launched at electronica 2018 international, is part of the tried-and-tested LGS family and provides a low-cost alternative for samples up to a diameter of 1300 mm and a weight of 10 kg. Combined with a spectroradiometer, e.g. the CAS 140D or a photometer, all parameters can be determined to the highest degree of precision as a function of the angle.

Besides SSL sources, laser sources are also growing in importance in scientific and high-tech applications or in the field of sensing and lighting. They are used, for example, in structure and surface analysis, and in the medical or industrial field. A high-resolution spectroradiometer is required for absolute characterization of these narrow band emission sources. To this end, Instrument Systems developed the CAS 140CT-HR array spectroradiometer, based on the proven CAS 140CT spectroradiometer and optimized for the photometric analysis of laser diodes, etc. It delivers measurement results with a high spectral resolution coupled with short measurement times, and is thus ideally suited to
challenging tasks in production and the laboratory. Especially for the fast testing of laser diodes or vertical-cavity surface-emitting lasers (VCSEL) already in the production line, the CAS 140CT-HR offers decisive advantages compared to conventional technologies. Dispersive, scanning or Fourier-transformed IR spectrometers (FTIR) contain moving components that react sensitively to production vibrations. The CAS 140CT-HR consists only of fixed components and is thus highly stable and reliable.

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