Abstract: Measuring and integrating sphere spectrometer color light sources and luminaires with goniophotometer measurement of light intensity distribution of the light source and lighting, has been in use for decades, technology is quite mature, but in recent years, the rapid development of new light sources, which The photoelectric performance is more complicated than the traditional light source. The simple measurement method combining the integrating sphere and the spectrometer can not meet the measurement requirements of the color characteristics of the new light source. Similarly, due to the spatial distribution unevenness of the new light source, the simple distribution photometer Because the color distribution cannot be measured, the measurement requirements of the color space distribution characteristics can not be satisfied, which brings new challenges to the accurate measurement of the light source and the luminaire. The measurement of the light color space distribution of the light source and the luminaire has recently received great attention internationally. This paper introduces the high-precision measurement method of the light color space distribution of light source and luminaire. At the same time, it introduces the high-precision distributed spectrum radiometer composed of high-precision fast spectroradiometer and double-mirror dual-exposure distribution photometer, and gives the actual measurement of the specific luminaire. results and analysis. The light color spatial distribution measurement method and measurement equipment described in this paper can not only comprehensively evaluate the luminosity and chromaticity performance of the light source and the luminaire, but also provide the most detailed objective data for the accurate physical description of the light source and luminaire light color performance, for the new light source and The evaluation, development and application of lamps are of great significance.
Keywords: spectrometer, distribution photometer, spatial distribution, high precision
High accuracy spatial photometry and colorimetry of lamps and luminaires
Jiangen Pan Qian Li
EVERFINE PHOTO-E-INFO CO., LTD,Hangzhou,China()
Abstract: For lamps and luminaries, using the integrating sphere and spectroradiometer to measure their colorimetric parameters and using the goniophotometer to measure their luminous intensity distribution have been applied for tens of years, and the technologies have been applied for tens of years, and the technologies have been matured. New light sources which have more complicated luminous performance than traditional ones, the simple method that coupling the integrating sphere and spectrometer for colorimetry can not fulfill the measurement requirement, and at the same time, as the new light sources have uneven spatial chroma distribution, the Conventional goniophotometers also can not satisfy the measurement requirement for it can only measure the luminous intensity distribution. These bring techniques, and the spatial photometry and colorimetry have attracted much attention in the world. This paper introduces the high accuracy measurement method for spatial photometry and colorimetry Of lamps and lum In the singularity and the goniospectroradiometer, the high-accuracy, the singularity of the light, the singularity, the singularity, the singularity, and the singularity To describe the photometric and colorimetric performance of the lamps and luminaries. They important to appraise, research and apply the lamps and luminaries.
Keywords: spectrometer, goniophotometer, spatial distribution, high accuracy