发明名称 PHOTOMETRIC DEVICE
摘要 PURPOSE:To make highly accurate exposure controlling possible by such constitution consisting of selectively providing a light scattering body in the optical path of a photodetecting part consisting of multiple photodetectors for focus detection and detecting the illuminance information of light through the light scattering body. CONSTITUTION:Light from an object 11 passes through a photographing optical system 12, and the half mirror part 15A at the center of a quick return mirror 15, is reflected by a small mirror 15B, and enters a focusing/photometric photodetector 16 consisting of multiple photodetectors in the position conjugated with a film 14. On the other hand, a light scattering body 17 provided freely rotatively near the photodetecting surface of the photodetector 16 is positioned on the optical path, and the light from a wide range of the object is entered the photodetector 16, whereby exposure controlling is accomplished. Hence, with one photodetector 16, the controlling of focusing and exposure is accomplished and the highly accurately exposure controlling is accomplished.
申请公布号 JPS56146109(A) 申请公布日期 1981.11.13
申请号 JP19800049139 申请日期 1980.04.16
申请人 OLYMPUS OPTICAL CO 发明人 SUZUKI TAKEOMI;HAYASHI ASAO
分类号 G03B7/08;G02B7/28;G03B3/10;G03B7/099;G03B13/36 主分类号 G03B7/08
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