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Measurement system for characterization of angular and spectral distribution of LED based sources
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SYSNO ASEP 0498732 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Measurement system for characterization of angular and spectral distribution of LED based sources Author(s) Šerý, Mojmír (UPT-D) RID, SAI
Ježek, Jan (UPT-D) RID, ORCID, SAI
Jákl, Petr (UPT-D) RID, ORCID, SAI
Škereň, M. (CZ)
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDNumber of authors 5 Article number 1097607 Source Title 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics. (Proceedings of SPIE 10976). - Bellingham : SPIE, 2018 / Zemánek Pavel - ISSN 0277-786X - ISBN 9781510626072 Number of pages 4 s. Publication form Print - P Action Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics /21./ Event date 03.09.2018 - 07.09.2018 VEvent location Lednice Country CZ - Czech Republic Event type EUR Language eng - English Country US - United States Keywords light emitting diodes ; light distribution Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects FV10618 GA MPO - Ministry of Industry and Trade (MPO) TE01020233 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000455324600006 EID SCOPUS 85059420981 DOI 10.1117/12.2518360 Annotation In the present days light emitting diodes1 (LED) based light sources become very common in most areas of life2 and scientific applications3. Due to the nature characteristic of the LED’s, angular and spectral distribution of the emitted light must be improved for specific purposes of light source4. It could be done by standard bulk optics, reflective and refractive, or in modern way by integrating planar diffractive structures. Measuring system of spatial distribution of illumination was developed, which could be used in general but with advantage mainly for improved progressive diffraction optics components. The measurement system consists of three main parts. The first one is rigid optical bench with goniometric light source holder driven by stepper motor, which operates in three degrees of freedom. The source holder has ability to correct thickness of the light source with respect to the plane of the radiation. Maximal size of the light source is 500 by 500 mm and maximal length between the source and detector part is over 3 meters. The second detection part includes fiber spectrometer, photopic photodiode and elevation laser. Latter ensures correct repeatable
setting of the light source. The third part - control and acquisition hardware is crucial for proper measurement of spectral and intensity data sets. The whole system is driven by custom software, which is able to generate most types of output reports, charts and file formats.Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2019
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