| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To mount an optical component appropriately while reducing the thickness of a camera body. <P>SOLUTION: The present invention comprises an adaptor ring 41 having a flexible engagement piece 46 that engages with an engagement part 37 of a lens ring 4 disposed around a lens part 3 that is formed on the front face 2a of an imaging device 1, and a mounting part 47 on which an optical component 43 is mounted, and a lock ring 42 that is operated between a lock position in which the lock ring engages with the outer circumferential surface of the adaptor ring 41 and faces the engagement piece 46 that engages with the engagement part 37 so as to prevent the deflection of the engagement piece 46, and a lock-release position in which the lock ring is retracted from the lock position. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
