发明名称 Shutter blades for increasing uniformity of oblique incident light
摘要 In a photographing device of the kind having a plurality of blades disposed one after another in an overlapping manner in the direction of the optical axis of a photo-taking lens, with an exposing aperture part for high luminance included in an exposing aperture hole formed in each of the blades, and performing exposure control for an exposure surface by driving and moving these blades relative to each other in the direction of traversing the optical axis, the fore end positions, relative to the optical axis, of the exposing aperture parts for high luminance included in the exposing aperture holes formed respectively in the blades are arranged to be located farther away from the optical axis accordingly as the blades are located farther away from the exposure surface.
申请公布号 US5502525(A) 申请公布日期 1996.03.26
申请号 US19940229395 申请日期 1994.04.18
申请人 CANON KABUSHIKI KAISHA 发明人 MIZOGUCHI, YOSHIYUKI
分类号 G03B9/02;G03B9/42;(IPC1-7):G03B9/40 主分类号 G03B9/02
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