Patent ID: 6130995
Filing Date: 2000-10-10
Classification: G02B,G03B

Abstract:
An internal indicator for a viewfinder field, wherein said viewfinder comprises a viewfinder optical system including an objective optical system, an erecting optical system and an eyepiece optical system, wherein an image formed by said objective optical system is viewed through said eyepiece optical system via said erecting optical system, said internal indicator comprising:an information indicating device, positioned in the vicinity of said image formed by said objective optical system, for indicating photographic information that is viewed through said eyepiece optical system; andan optical element positioned in a light path, said light path extending from said information indicating device to an exit pupil of said viewfinder optical system;wherein said optical element is formed so that a refracting power of said optical element in a radial direction towards an optical axis of said eyepiece optical system is different from a refracting power of said optical element in a direction perpendicular to both said radial direction and a parallel direction towards the optical axis.