| 摘要 |
A shutter (42) is installed on a second lens frame (14). A first transmissive photosensor (17) is installed on the inner surface of an object-side outer wall (5a) of an optical block first housing (5), while a second transmissive photosensor (18) is installed inside an outer wall (5b) located on a CCD light receiving section side. A first light shielding plate (19) is installed on the surface located on the object side of the first lens frame (11). On the other hand, the second light shielding plate (20) is provided on one side of a light shielding plate installation member (43), and the light shielding plate installation member (43) is installed on a bottom section of the second lens frame (14). By thus installing the second light shielding plate (20) on the opposite side of the second lens frame (14) with respect to the shutter (42), interference between the shutter (42) and the second transmissive photosensor (18) is avoided. Moreover, with an installation such that the projection areas of the second transmissive photosensor (18) and the shutter (42) on a plane normal to the optical axis are partially superposed over each other, the length in a direction normal to the optical axis is reduced.
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