| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a camera focal plane sutter that optimizes rigidity of a rear blade group for suppressing a deformation orthogonal to a blade travelling surface without enlargement in size of the shutter.SOLUTION: A focal plane shutter comprises: at least two base plates that have an aperture; a plurality of light-shielding blades; and a plurality of blade arms that cause an opening/closing operation of the aperture to be performed by rotatably reciprocating the light-shielding blades. A bend is formed on an opposite side of the blade arm in a longitudinal direction on a travelling direction side on at least one light-shielding blade except for an exposure slit formation blade out of the light-shielding blades.</p> |
