Device for measuring light intensity received by a photosensor

作者: Shotaro Yokoyama , Takashi Nishibe

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摘要: A device for measuring the intensity of light received by a photosensor comprises receiving and producing corresponding current circuit integrating so that is indicated as time required integration value to reach predetermined value. If determined be high at start operation set smaller two values. low, larger

参考文章(3)
Darwin E. Chapman, Digital exposure meter ,(1978)
Kazuhiko Naruse, Yoshio Yuasa, Light measuring device ,(1981)