REAL IMAGE VIEWFINDER AND PHOTOGRAPHIC DEVICE WITH REAL IMAGE VIEWFINDER

摘要

PROBLEM TO BE SOLVED: To miniaturize the whole viewfinder while preventing the penetration of dust to an imaging surface.;SOLUTION: A visual field frame and a condenser lens 149 are incorporated from a direction in parallel with an optical axis 100 and integrally coupled in a holder provided separately from an objective optical system and an ocular optical system. In addition, a closed space having the imaging surface on the rear surface of the condenser lens 149 is formed by a holder, the condenser lens 149 and a roof prism 122 by incorporating the holder combining the condenser lens 149 and the visual field frame in a holding case from a direction perpendicular to the optical axis 100. This invention is applicable, for example, to a camera with a real image viewfinder.;COPYRIGHT: (C)2005,JPO&NCIPI