The article discusses theoretically on the radiation theory of LD and LED, transformation theory of PIN photoelectric diode.
文章从理论上对LD、LED的发光原理、PIN光电二极管的光电转换原理进行了分析。
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On the basis of accurate theory, using laser emitter and photosensitive diode as testing sensor, a set of laser equipment for automobile axle depth of parallelism test is designed and produced.
So, this paper presents a more universal characteristics of the laser diode ranging evaluation system, and studies on laser diode characteristics of radar ranging in theory and experiment.