Patent ID: 7046925
Filing Date: 2006-05-16
Classification: G02B,G03B

Abstract:
1. A superimpose-plate for a view finder, said superimpose-plate being on a focusing glass, on which a subject image obtained through the photographing optical system is formed, said superimpose-plate and said focusing glass being provided in an incident opening of a hollow pentagonal mirror, said superimpose-plate comprising: a plurality of micro-prisms on said superimpose-plate; each of said micro-prisms appearing as a triangle in a cross-section, the vertical angle of said triangle being identical in each of said micro-prisms, a ridgeline of each of said micro-prisms being parallel to the right-left direction of a picture plane of said view finder, wherein an outline of at least one of said micro-prisms is a slender trapezoid when viewing said superimpose-plate from an upper side.