Real image mode finder

Details Real image mode finder Real image mode finder

1990-08-22

1992-02-25

Hix, L. T.

354219, G03B 1912

Patent

active

050917390

ABSTRACT:
A real image mode finder is provided with an objective lens, an image erection unit, and an eyepiece lens, and the image erection unit comprises a reflection member bending laterally an optical path and a prism constructed so that a light beam reflected at the reflection member enters a common surface, is reflected from a reflection surface toward the common surface, is further reflected from the common surface, and then emerges from an emergence surface. Whereby, the real image mode finder is adapted to eliminate longitudinal and lateral projections like a Porro prism, diminish the number of prisms and the number of times of reflections in comparison with a Pechan prism, and meet space-saving and low cost so as to be capable of accommodating a small-sized camera body.

REFERENCES:
patent: 3788202 (1974-01-01), Wiessner
patent: 4021823 (1977-05-01), Miyata
patent: 4322150 (1982-03-01), Kamata et al.
patent: 4912500 (1990-03-01), Yokota et al.
patent: 4978199 (1990-12-01), Mukai et al.

Affiliated with

Also associated with

Rating

Real image mode finder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Real image mode finder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Real image mode finder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1895691