发明名称 OPTICAL DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide an optical device which causes an interchangeable lens to surely perform a prescribed operation and can secure operability when the interchangeable lens is removed from a camera body. <P>SOLUTION: The optical device includes: an unlocking button 207 which is depressed to remove an interchangeable lens 100 from a camera body 200; a plunger lock pin 209 which fixes the interchangeable lens to the camera body to restrict its removal and releases fixing of the interchangeable lens to the camera body to allow the interchangeable lens to be removed from the camera body; an unlock detection switch 208 which detects that the unlocking button 207 has been depressed; and a camera control circuit 202 which causes the interchangeable lens to perform a prescribed operation when the unlock detection switch detects that the unlocking button has been depressed, and releases the fixing by the plunger lock pin 209 when a signal indicating that the prescribed operation has been completed, is received from the interchangeable lens. <P>COPYRIGHT: (C)2013,JPO&INPIT
申请公布号 JP2013120283(A) 申请公布日期 2013.06.17
申请号 JP20110268145 申请日期 2011.12.07
申请人 CANON INC 发明人 SHUKUIN KOICHI;ISHIKAWA MASAAKI;KASHIBA SEIICHI;MIZUSHIMA MASAYASU;KOYAMA ATSUSHI
分类号 G03B17/14;G03B17/02 主分类号 G03B17/14
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