Patent ID: 7775728
Filing Date: 2010-08-17
Classification: G03B

Abstract:
1. A focal plane shutter for a camera, comprising: one or two shutter blade assemblies comprising two arms and at least one blade pivoted on the arms; one or two electromagnet assemblies comprising an iron core member and a coil; one or two driving means including a mounting member mounted with an iron scrap member, for bringing said iron scrap member into proximity with said iron core member, causing said iron scrap member to be attracted and held by said iron core member by energization of said coil is energized during photographing, and separating said iron scrap member from said iron core member to operate said shutter blade with a driving spring when said coil is deenergized; and a setting member configured to be operated from an initial position to operate said driving means to a set position against an biasing force of said driving spring in setting, and to return to the initial position before said shutter blade is operated, wherein