| 摘要 |
<P>PROBLEM TO BE SOLVED: To hold a visual field frame with a small number of parts with high positional accuracy. Ž<P>SOLUTION: The visual field frame 14 is held only by a finder plate 1. In such a case, positional variation of the visual field frame 14 in an optical axis direction of the visual field frame 14 is regulated by abutting parts 1e, 1d and 1f of the finder plate 1. Furthermore, the positional variation of the visual field frame 14 in a direction orthogonal to the optical axis direction is regulated by a second aperture 14c and a projection 14b formed on the visual field frame 14. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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