Patent ID: 6709173
Filing Date: 2004-03-23
Classification: G03B

Abstract:
A focal-plane shutter for cameras comprising:a first blade actuating member for causing a first blade to execute an exposure actuation in photographing; a second blade actuating member for causing a second blade to execute the exposure actuation after the commencement of the actuation of the first blade in the photographing; and a movable contact member firstly coming into contact with a first stationary contact member in the photographing by moving from a neutral position following the actuation of the first blade actuating member by means of a biasing force of a spring, secondly coming into contact with a second stationary contact member after moving beyond the neutral position by being actuated in an opposite direction by the second blade actuating member against the biasing force of the spring, and returning to the neutral position by the biasing force of the spring when the respective actuating members execute a setting actuation.