Posted to News on 12th Oct 2007, 16:18
Solar spectrum system simulates sunlight
Labsphere is introducing the Solar Spectrum Uniform Source system that makes it possible to generate a uniform radiance field to simulate the spectral shape of solar light. As testing and calibration demands change for increasingly portable display and imaging capabilities, this 'industry-first' product can be used in applications requiring the replication of sunlight and daylight conditions.
The Solar Spectrum Uniform Source replicates the spectral shape of solar radiation with xenon and tungsten halogen sources and an integrating sphere. It is designed for Lambertian solar simulation testing of high-speed video and film systems, space-based imaging systems, single-element broadband sensors, photovoltaic and quantum efficiency, as well as dynamic range, linearity and uniformity testing of focal plane arrays. The system is capable of approximating the spectral radiance of a 100 per cent albedo source, or the spectral curve of the ASTM Standard D65.
With a radiance uniformity of more than 98 per cent, the Solar Spectrum Uniform Source also approximates near blackbody spectra with colour temperature ranges from 3000-6000K. The system includes a photopic detector for luminance monitoring, a high-dynamic range, low-noise CCD-based spectrometer to monitor spectral irradiance from 350-1050nm, spectrometer and uniform source control software, and multiple detector options. It is available in two models to meet customer output radiance and illumination area requirements.
Variable attenuators and motor controllers enable users to control spectral radiance automatically through the exit port. Luminance levels are monitored in candelas per square metre (cd/m2) and foot-lamberts (fL), and calibrations are traceable to the National Institute of Standard and Technology (NIST).
