Zoom finder system

Optical: systems and elements – Lens – With variable magnification

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

354219, 354222, 354223, G02B 1514, G03B 1302, G03B 1310

Patent

active

051930307

ABSTRACT:
A finder apparatus for use with a lens-shutter type camera composing a zoom imaging optical system, a zoom finder optical system separate from said zoom imaging optical system, and an electronic flash device. The zoom finder optical system is made as a real-image zoom finder apparatus, with part of the associated optical elements being disposed behind the electronic flash device, and part of the optical path from the objective lens to the eyepiece being bent backward of the electronic flash device to pass through the optical element disposed behind the electronic flash device.

REFERENCES:
patent: 3807842 (1974-04-01), Baker
patent: 4081809 (1978-03-01), Kuboshima
patent: 4526444 (1985-07-01), Fantone et al.
patent: 4545655 (1985-10-01), Fantone et al.
patent: 4653872 (1987-03-01), Takahashi
patent: 4690512 (1987-09-01), Forsyth
patent: 4725130 (1988-02-01), Ozawa
patent: 4751539 (1988-06-01), Yamada et al.
patent: 4757336 (1988-07-01), Nakayama et al.
patent: 4763998 (1988-08-01), Tsuji et al.
patent: 4834513 (1989-05-01), Nozawa
patent: 4842395 (1989-06-01), Sato et al.
patent: 4854680 (1989-08-01), Kikuchi
patent: 4887109 (1989-12-01), Fujita et al.
patent: 4906078 (1990-03-01), Inabara et al.
patent: 4909614 (1990-03-01), Itoh et al.
patent: 4941012 (1990-07-01), Inabata
patent: 4945372 (1990-07-01), Higuchi et al.
patent: 4969723 (1990-11-01), Kate et al.
patent: 4992809 (1991-02-01), Nozaki et al.
patent: 5034764 (1991-07-01), Inabata
Japanese Abstract of 60-78434; vol. 9, No. 217; p. 350-Sep. 4, 1985.
Rudolf Kingslanke, "Development of the Zoom Lens", Aug. 1960, Journal of the SMPTE, vol. 69 pp. 534-544.
"Yashica Samurai X 0.3"-MFM Jun. 1988-236-1988.
French Search Report-FR 91064515-Sep. 2, 1991.
French Search Report-FR 8914178-Sep. 1, 1991.
"UV Stabilizers", Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 23, Third Ed., 1983, pp. 615-627.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Zoom finder system 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 finder system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom finder system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-213940

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.