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中国物理学会期刊
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用积分球和分布光强计测量红、黄、绿发光二极管(LED)的总光通

物理学报, 1978, 27(3): 303-313.
DOI: 10.7498/aps.27.303
CSTR: 32037.14.aps.27.303

MEASUREMENTS OF ANGULAR DISTRIBUTION OF LUMINOUS INTENSITY AND TOTAL LIGHT FLUX OF LIGHT EMITTING DIODES

Acta Phys. Sin., 1978, 27(3): 303-313.
DOI: 10.7498/aps.27.303
CSTR: 32037.14.aps.27.303
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  • 摘要

    为适应半导体LED发展的需要,我们设计出积分球与转动式分布光强计,可对GaAsxP1-x,GaP,GaAs加荧光粉三种材料制成的红、绿、黄LED的总光通和光强空间分布进行测试。由此不难算出平面封帽数码管的发光率(亮度)。为了便于和国外发表的结果作对比,用国产标准灯作定标标准后,还把标准灯和国外照度计的测试结果作了比较。结果表明,在误差范围内彼此很好地符合。

     

    Abstract

    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.

     

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