发明名称 DISPLAY DEVICE FOR DISPLAYING FOCUSING STATE
摘要 PURPOSE:To display a defocus state so that it may be superposed on an object projected on a finder screen, and to display a focused state so that it may be transparent. CONSTITUTION:The device is provided with a photographing optical system 3 for forming the object image, focus detecting means 10-12 for detecting the focusing state of the image plane formed by the photographing optical system with reference to a scheduled focus plane 8, a finder screen 5 for observing the object and display means 13 and 14 for not superposing the display on the position corresponding to a focus detecting position on the finder screen when the focusing state detected by the focus detecting means 10-12 is in a focused state, meanwhile, for superposing the display on the position when it is in the defocus state.
申请公布号 JPH05127243(A) 申请公布日期 1993.05.25
申请号 JP19910290294 申请日期 1991.11.07
申请人 NIKON CORP 发明人 KUSAKA YOSUKE
分类号 G02B7/28;G03B17/20 主分类号 G02B7/28
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