| 摘要 |
PROBLEM TO BE SOLVED: To provide a camera capable of controlling only a front curtain or only a rear curtain independently. SOLUTION: A front curtain charge cam 121, a rear curtain charge cam 122, a mirror drive cam 151 and an aperture control lever drive cam 152 are attached to a cam shaft 172, and are caused to integrally rotate with drive force from a sequence motor 4. The respective cams 121, 122, 151 and 152 are formed in shapes that allow them to drive corresponding members regardless of which direction the cam shaft 172 rotates. By properly deciding the shapes of the respective cams, only a front curtain shielding blade set 411 or only a rear curtain shielding blade set 431 can be independently controlled in accordance with the rotational phase of the cam shaft 172. COPYRIGHT: (C)2010,JPO&INPIT
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