LIGHT SHIELDING DEVICE OF COLLAPSIBLE BARREL TYPE CAMERA

摘要

PURPOSE:To prevent effectively light from leaking the fitting part between a lens unit and a lens mount by forming an annular groove in a wall which engages a lens barrel, and providing a light shield member which engages the groove bottom elastically in the groove. CONSTITUTION:The lens unit 3 is run through a front plate 2 while there is a slight clearance C left between its outer peripheral surface and the inner periphery of the lens mount 2a incorporated in the front plate 2, and a wide and shallow groove 2b is formed annularly in the inner peripheral surface of the lens mount 2a to fit a light shield member 6. The light shield member 6 has plural bent parts 6b by bending one surface of a metallic thin plate 6 of an elastic material and is fitted in the groove 2b by deforming annularly and elastically with a beltlike member having light shield fur 7 of proper length flocked on the opposite-side surface.