| 摘要 |
PROBLEM TO BE SOLVED: To provide a mechanism capable of preventing the inflow of dust or the like from the outside into a mirror box by the driving operation of a main mirror by utilizing a quick return mechanism of a single reflex lens camera. SOLUTION: In the single reflex lens type digital camera capable of exchanging lenses, the quick return mirror 2 is constituted of a transparent member. The quick return mirror 2 is constituted so as to move vertically to an optical axis close to a mount 10 by a mirror rotation shaft 1 at the time of photographing. When an interchangeable lens is not loaded, the quick return mirror 2 is similarly moved vertically to the optical axis close to the mount 10 by the mirror rotation shaft 1. A coat such as an ultraviolet cutting coat/infrared cutting coat is applied to the image pickup element 5 side surface of the quick return mirror 2. COPYRIGHT: (C)2005,JPO&NCIPI |
