Patent ID: 7168865
Filing Date: 2007-01-30
Classification: G03B

Abstract:
1. A camera comprising: a normally closed shutter having at least one blade that is moved to open and close said shutter; a movable driver having a supporting connection with a fixed object to support said driver to move, and having a driving connection with said shutter that drives at least said one blade to open and close said shutter when said driver is moved; and a fixed stop for said driver having a blocking face in the way of said driver to stop said driver once said driver has moved to drive at least said one blade to close said shutter, and being oriented to urge said driver to create a friction-type force at said supporting connection that impedes said driver to move to drive at least said one blade to re-open said shutter, whereby said shutter is prevented from being reopened unintentionally; wherein said blocking face is an inclined ramp face.