| 摘要 |
PROBLEM TO BE SOLVED: To accurately position the lens of a finder. SOLUTION: Ribs 13 and 14 are formed on both side parts of a lens 2 and projecting parts 16 are respectively formed at the center parts of the ribs 13 and 14. Grooves 33 and 34 are formed on a finder frame 4 at positions corresponding to the ribs 13 and 14. Notches 38 are formed to face the projecting part 16 in the grooves 33 and 34. The projecting parts 16 are formed in trapezoidal shape whose edge side is tapered. The ribs 13 and 14 are inserted into the grooves 33 and 34, and the projecting parts 16 are adjusted to the positions of the notches 38, whereby the lens 2 is attached to the finder frame 4. The edges of the notches 38 abut on the upper and the lower inclined surfaces of the projecting parts 16 and press the ribs 13 and 14.
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