| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a focus fixing structure for a lens that allows easy focus adjustment and easy fixing of the adjusted position of a focus ring even if the available workspace in installation of a surveillance camera or the like is limited, thereby facilitating operation associated with the focus fixing for a lens. <P>SOLUTION: A fixing screw 18 is screwed into a large diameter part 16 of a lens holding frame 6, and a focus stopper member 20 made of a metal plate is fixed on the surface of the large diameter part 16 by the fixing screw 18. One end 20b of the focus stopper member 20 has an L-shape, the end of which is in contact (pressure-contact) with the outer circumferential surface of the focus ring 8 by an elastic force. In this state, the focus ring 8 can be rotated. After the focus adjustment, a frictional force generated by the aforementioned pressure-contact prevents the rotation of the focus ring 8 relative to the lens holding frame 6. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
