| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that it is difficult to make resolution of a diopter fine without narrowing an adjustable diopter range.SOLUTION: A finder device comprises: a joint gear that rotates accompanied by an operation of an operation part; a transmission gear to which the rotation of the joint gear is transmitted; a drive transmission part that transmits the rotation of the transmission gear to move a diopter adjustment lens, and varies a focus point of a finder optical system; a cylindrical part that is integrally formed coaxially with the joint gear and at a position adjacent to the joint gear, and has a diameter equal to or larger than a tooth bottom circle diameter of the joint gear; a click groove cylinder that has a click groove formed at a predetermined angle interval in an outer peripheral surface of the cylindrical part; an urging part that urges the click groove to the cylindrical part side, and, when the click groove cylinder rotates accompanied by the rotation of the joint gear, generates a click feeling when the operation part is operated by going over the click groove; and a wall part that is formed between the joint gear and the click groove cylinder, and regulates a movement of the urging part to the joint gear side.</p> |
