Internal indicator of a viewfinder

Details Internal indicator of a viewfinder Internal indicator of a viewfinder

1999-05-25

2000-10-10

Perkey, W. B.

Photography

Having camera indicator

Having display in viewfinder

G03B 1720

Patent

active

061309958

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

REFERENCES:
patent: 5581318 (1996-12-01), Shiratori
patent: 5802408 (1998-09-01), Suda
patent: 5893650 (1999-04-01), Ohmura
patent: 6002887 (1999-12-01), Chiba et al.

Affiliated with

Also associated with

Rating

Internal indicator of a viewfinder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internal indicator of a viewfinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal indicator of a viewfinder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2262695