A device of comparison of light-emitting diodes for a light stream
DOI:
https://doi.org/10.20535/RADAP.2011.44.127-135Keywords:
light-emitting diode, vibration, photometric parabolic reflector, parabolic mirror, light stream, vibromotor.Abstract
The simple method of comparison of light-emitting diodes after a light stream and possible construction of setting of this method are presented in this article. Parabolic mirrors are specially entered in a construction, as directing concentrators of light stream, and vibromotor with automatic control. Near one focus of mirrors set a light-emitting diode which is envisaged on a vibromotor, and on an opposite mirror in focus fasten fotodetector. After including to the vibromotor, by oscillation vibrations a light-emitting diode in one of moments is combined with focus of parabolic mirror. Whereupon, a light stream is directed by a parabolic mirror on opposite and gathers in focus last, where and registered by fotodetector. The entered vibration imitates the frequent measuring of stream that saves time on realization of measuring.
References
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В.Кузьмин, В. Антонов, О. Круглов. «Приборы для измерения оптических параметров и характеристик светлодиодов». «Полупроводниковая светотехника». 2010. №3.
Зареєстрована заявка про створення корисної моделі «Пристрій порівняння світлодіодів за світловим потоком» від 28.02.2010 р.
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