发明名称 OPTICAL EQUIPMENT
摘要 <P>PROBLEM TO BE SOLVED: To provide optical equipment capable of improving detection accuracy by a relatively simple configuration. <P>SOLUTION: Light projecting and receiving units 21, 22, 24, and 25, which are configured so as to project light onto a target detection face on the eyepiece side of a finder 2 and receive light reflected from the target detection face, are disposed in the vicinity of the finder 2. The light projecting optical path 23 and light receiving optical path 26 of the light projecting and receiving units are inclined so as to be asymptotic to a finder optical axis 8. On the basis of the light receiving signal from the light projecting and receiving units, the state of the eyepiece of the finder 2 is discriminated. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007193221(A) 申请公布日期 2007.08.02
申请号 JP20060012916 申请日期 2006.01.20
申请人 CANON INC 发明人 AIKAWA SATOSHI
分类号 G03B17/00;G03B7/00;G03B17/02 主分类号 G03B17/00
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