Open AccessMEASUREMENTS OF ANGULAR DISTRIBUTION OF LUMINOUS INTENSITY AND TOTAL LIGHT FLUX OF LIGHT EMITTING DIODES
Author(s) -
Kaisheng Hu,
Dehui Fu,
Yongzhen Wang
Publication year - 1978
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.27.303
Subject(s) - luminous flux , luminous intensity , diode , optics , intensity (physics) , measure (data warehouse) , light emitting diode , light intensity , flux (metallurgy) , physics , optoelectronics , materials science , light source , database , computer science , metallurgy
In this paper, we report the design and performance of a rotational type lumious intensity distribution measuring device and an integration sphere. They can be used to measure the angular distribution of luminons intensity and total light flux of LED's. Geometry of the experimental arrangement is described in detail. Measure-ments have been carried out on red emitting GaAsxPx-1, yellow and green emitting GaP and up-conversion GaAs diodes.