Real image type variable magnification view-finder optical syste

Details Real image type variable magnification view-finder optical syste Real image type variable magnification view-finder optical syste

1993-09-29

1994-10-25

Gray, David M.

Optical: systems and elements

Prism

With reflecting surface

359676, G03B 1310

Patent

active

053593774

ABSTRACT:
A real image type variable magnification view-finder optical system consisting of an objective lens system which comprises a plurality of lens units and has a positive refractive power as a whole, and an eyepiece lens system for allowing observation of an image formed by the objective lens system. At least one of the plurality of lens units comprises two or more lens components and is configured so as to permit varying one or more airspaces reserved between the at least two lens components. This real image type variable magnification view-finder optical system is capable of switching a visual field thereof for a usual photographing mode to another visual field for a panoramic photographing mode.

REFERENCES:
patent: 4955715 (1990-09-01), Kitagishi
patent: 5055868 (1991-10-01), Itoh et al.

Affiliated with

Also associated with

Rating

Real image type variable magnification view-finder optical syste 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 type variable magnification view-finder optical syste, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Real image type variable magnification view-finder optical syste will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-138630