Oi Measurement place A place that is nothing of extreme light reflected in the room. External light Project the light of ordinary white fluorescent lamps which are not high Frequency lamps and must be less then 10 Lux at the module surface. (Ee lOLux) Standard transmitter A transmitter whose output is so adjusted as to Vo=400mVp-p and the output Wave form shown in Fig.-l.According to the measurement method shown in Fig.-2 the standard transmitter is specified. However , the infrared photodiode to be used for the transmitter should be Ap=940nm,A=50nm. Also, photodiode is used of PD438B(Vr=5V). (Standard light / Light source temperature 28560K). Measuring system According to the measuring system shown in Fig.-3
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