Optical: systems and elements – Prism – With reflecting surface
Patent
1992-09-01
1994-08-02
Blankenship, Howard B.
Optical: systems and elements
Prism
With reflecting surface
359738, 359894, G03B 1302
Patent
active
053350340
ABSTRACT:
A compact Galilean-type zoom finder suitable for compact cameras, and the like whose zoom ratio is about 2. The zoom finder is comprised of four units having negative, negative, positive and negative refractive powers in order from an object side and a movable framing window. The first and the fourth lens units are fixed and the second and the third lens units are moved to perform zooming. The moving framing window helps to delineate the field of view.
REFERENCES:
patent: 4725130 (1988-02-01), Ozawa
patent: 4757336 (1988-07-01), Nakayama et al.
patent: 4854680 (1989-08-01), Kikuchi
patent: 5194886 (1993-03-01), Mukai et al.
Patent Abstracts of Japan; vol. 10, No. 322 (p-511)(2378) Oct. 31, 1986.
Lewis Alan E.
Ruben Paul L.
Blankenship Howard B.
Eastman Kodak Company
Short Svetlana Z.
LandOfFree
Zoom viewfinder with non-rectangular window does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Zoom viewfinder with non-rectangular window, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom viewfinder with non-rectangular window will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-68004