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특허 상세정보

Focus detecting apparatus

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01S-001/36   
미국특허분류(USC) 250/204 ; 354/25
출원번호 US-0972261 (1978-12-22)
우선권정보 JP-0155910 (1977-12-24); JP-0012144 (1978-02-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 13  인용 특허 : 0
초록

Focus detecting apparatus for an optical system including first and second image forming optical means for forming the image of an object along first and second spatially separated light paths, first and second photosensitive element arrays each comprising a plurality of photosensitive elements and producing an electrical signal representative of the intensity distribution pattern of the light incident thereon, and circuit means for detecting the focus of the optical system in accordance with the electrical signals from the first and second arrays. The c...

대표
청구항

In a focus detecting apparatus for an optical system including: first and second image forming optical means for receiving light from an object along first and second spatially separated light paths and forming the image of said object; first and second photosensitive element arrays disposed in predetermined image planes of said first and second image forming optical means, each of said arrays comprising a plurality of photosensitive elements, and said arrays producing electrical signals representative of the intensity distribution pattern of the light i...

이 특허를 인용한 특허 피인용횟수: 13

  1. Terui Nobuhiko (Tokyo JPX) Magariyama Kenichi (Tokyo JPX). Automatic exposure control apparatus for camera. USP1984034437744.
  2. Ogasawara Akira (Yokohama JPX). Automatic focus adjusting apparatus using weighted average means. USP1984054447719.
  3. Ogasawara Akira (Yokohama JPX). Automatic focus adjusting device with a brightness dependent lens drive signal. USP1985034506150.
  4. Aoki Harumi (Saitama JPX) Kawasaki Masahiro (Saitama JPX) Suzuki Koji (Asaka JPX). Automatic focus detecting device for camera. USP1983104410258.
  5. Kusaka Yosuke (Kawasaki JPX) Okabe Nobuo (Tokyo JPX). Automatic focusing apparatus for a camera. USP1983094405220.
  6. Ogasawara Akira (Yokohama JPX). Automatic focusing apparatus with detection only when the lens is stationary. USP1983114414469.
  7. Utagawa Ken (Kawasaki JPX) Hoshino ; deceased Kunihisa (late of Tokyo JPX by Chie Hoshino ; legal representative). Camera system with vignetting calculation and memory means. USP1989034816663.
  8. Kusaka Yosuke (Kawasaki JPX). Focus detecting apparatus. USP1983114417139.
  9. Namba Yasuhiro (Osaka JPX). Focus detecting device for a camera. USP1985014494849.
  10. Kusaka Yosuke (Kawasaki JPX) Utagawa Ken (Kawasaki JPX). Focus detecting device for removing vignetting effects. USP1987084687917.
  11. Suzuki Kenji (Kawasaki JPX). Focus detection apparatus. USP1985024497561.
  12. Kinugasa, Tomohisa. Solid-state imaging apparatus and camera system. USP2012038139143.
  13. Wilwerding Dennis J. (Littleton CO). Strip mirror radiation splitter for range determination systems. USP1984114481413.