Patent ID: 6047139
Filing Date: 2000-04-04
Classification: G02B,G03B

Abstract:
A camera including a view finder having a visual field and capable of superimposed display in the visual field of the view finder, said camera comprising:a view finder optical system comprising a focusing screen and a reflective mirror that reflects a portion of a light beam used for photography to said focusing screen, said view finder optical system thereby allowing a user to view an object to be photographed, said reflective mirror reflecting a first percentage of light having a first direction of polarization, and reflecting a second percentage of light having a second direction of polarization, the second percentage being greater than the first percentage;a liquid crystal display device positioned within an optical path of said view finder optical system;a polarizing member positioned in the optical path of said view finder optical system and behind said liquid crystal display device, as viewed along a direction of the optical path of said view finder optical system; anda projection device disposed on a side of said reflective mirror opposite said liquid crystal display device, said projection device projecting light having the first direction of polarization through said reflective mirror and toward said liquid crystal display device.