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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Focus detecting device

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G03B-003/00   
미국특허분류(USC) 354/408 ; 250/204
출원번호 US-0877850 (1986-06-24)
우선권정보 JP-0143126 (1985-06-28); JP-0220588 (1985-10-02)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 42  인용 특허 : 10
초록
▼

A focus detecting device having a field lens disposed near the predetermined imaging plane of an objective and a secondary imaging optical system disposed rearwardly of the field lens, whereby a pair of object images based on light beams passing through different portions of the pupil of the objective are formed and the respective object images are detected by photoelectric conversion element rows disposed rearwardly of the secondary imaging optical system to thereby discriminate the focus state of the objective from the amount of relative deviation of t...

대표
청구항
▼

A device for detecting the state of focus adjustment of an objective, comprising: a field lens disposed in proximity to a prospective imaging plane of said objective; a plural-image forming optical system for forming a plurality of object images of varying relative positional relation from a light beam having passed through the objective, said plural-image forming optical system comprising a plurality of lenses each generating one of said object images; a sensor for producing a signal relating to the positional relation between said plurality of object i...

이 특허에 인용된 특허 (10)

  1. Zulauf, Karlheinz; Egner, Rudolf. Automatic locking device for a flexible container. USP1985124561570.
  2. Tokutomi Seijiro (Tokyo JPX) Jyojiki Masao (Tsurugashima JPX) Nakamura Kazuo (Tokyo JPX). Camera focus detecting device. USP1980104230401.
  3. Kondo Toshihiro (2-14-3 Kamiishihara ; Chofu-shi ; Tokyo JPX). Device for automatically focusing image. USP1979014132888.
  4. Kawamura Kunio (Sakai JPX) Mukai Hiromu (Kawachinagano JPX) Karasaki Toshihiko (Sakai JPX). Focus condition detecting device for cameras. USP1985074526458.
  5. Suzuki Kenji (Kawasaki JPX). Focus detecting apparatus. USP1986034573784.
  6. Matsumura Susumu (Yokohama JPX) Suzuki Takashi (Yokohama JPX) Suzuki Kenji (Kawasaki JPX). Focus detecting system detecting position of images formed from the center and periphery of the optical axis. USP1986014563576.
  7. Suzuki Kenji (Kawasaki JPX). Focus detection apparatus. USP1985024497561.
  8. Suzuki Takashi (Yokohama JPX) Matsumura Susumu (Kawasaki JPX) Suzuki Kenji (Kawasaki JPX) Otaka Keiji (Yokohama JPX). Focus detector having first and second non-overlapping sensor series. USP1987044659917.
  9. Schaefer Klaus-Dieter (Braunfels DEX). Optical electronic focusing device. USP1980094220406.
  10. Ohtaka Keiji (Kanagawa JPX). Sharp focus detecting device. USP1987124712901.

이 특허를 인용한 특허 피인용횟수: 42

  1. Georgiev, Todor G.; Lumsdaine, Andrew. Blended rendering of focused plenoptic camera data. USP2014108860833.
  2. Grosskopf Rudolf E.,DEX. Device for optical investigation of an object. USP2001056226036.
  3. Ohmura,Yusuke. Focus detecting apparatus. USP2007107283737.
  4. Ohtaka Keiji,JPX. Focus detecting apparatus and optical apparatus using it. USP1998035729771.
  5. Takato, Hideyasu. Focus detecting optical system and camera provided with the same. USP2005016847784.
  6. Ohtaka Keiji,JPX ; Ohmura Yusuke,JPX. Focus detection device for objective lens. USP1998085797049.
  7. Masataka Ide JP; Hisashi Goto JP. Focus detector. USP2002036360059.
  8. Georgiev, Todor G.; Lumsdaine, Andrew. Focused plenoptic camera employing different apertures or filtering at different microlenses. USP2012078228417.
  9. Georgiev, Todor G.; Lumsdaine, Andrew. Focused plenoptic camera employing different apertures or filtering at different microlenses. USP2013068471920.
  10. Georgiev, Todor G.; Lumsdaine, Andrew. Focused plenoptic camera employing microlenses with different focal lengths. USP2013038400555.
  11. Matsui Hiroshi (Hino JPX) Toda Akitoshi (Kunitachi JPX). Focused point detecting optical system. USP1991045004902.
  12. Lumsdaine, Andrew; Willcock, Jeremiah; Zhou, Yuduo; Lin, Lili. Frequency domain processing techniques for plenoptic images. USP2017019538075.
  13. Georgiev, Todor G.. Light field microscope with lenslet array. USP2011017872796.
  14. Intwala, Chintan; Georgiev, Todor G.. Managing artifacts in frequency domain processing of light-field images. USP2013128611693.
  15. Babacan, Sevket Derin; Georgiev, Todor G.. Method and apparatus for block-based compression of light-field images. USP2012048155456.
  16. Babacan, Sevket Derin; Georgiev, Todor G.. Method and apparatus for block-based compression of light-field images. USP2013038401316.
  17. Intwala, Chintan; Georgiev, Todor G.. Method and apparatus for managing artifacts in frequency domain processing of light-field images. USP2012088244058.
  18. Georgiev, Todor G.; Intwala, Chintan. Method and apparatus for radiance capture by multiplexing in the frequency domain. USP2011098019215.
  19. Georgiev, Todor G.; Intwala, Chintan. Method and apparatus for radiance capture by multiplexing in the frequency domain. USP2012028126323.
  20. Georgiev, Todor G.; Chunev, Georgi N.. Methods and apparatus for calibrating focused plenoptic camera data. USP2014088803918.
  21. Georgiev, Todor G.; Lumsdaine, Andrew. Methods and apparatus for full-resolution light-field capture and rendering. USP2012048160439.
  22. Georgiev, Todor G.; Lumsdaine, Andrew. Methods and apparatus for full-resolution light-field capture and rendering. USP2013028380060.
  23. Georgiev, Todor G.; Lumsdaine, Andrew. Methods and apparatus for full-resolution light-field capture and rendering. USP2012058189065.
  24. Georgiev, Todor G.; Lumsdaine, Andrew. Methods and apparatus for full-resolution light-field capture and rendering. USP2013028379105.
  25. Georgiev, Todor G.. Methods and apparatus for high-speed digital imaging. USP2013018358366.
  26. Georgiev, Todor G.. Methods and apparatus for light-field imaging. USP2012108290358.
  27. Georgiev, Todor G.; Lumsdaine, Andrew. Methods and apparatus for reducing plenoptic camera artifacts. USP2016049316840.
  28. Georgiev, Todor G.; Lumsdaine, Andrew. Methods and apparatus for reducing plenoptic camera artifacts. USP2012058189089.
  29. Georgiev, Todor G.; Chunev, Georgi N.. Methods and apparatus for rendering focused plenoptic camera data using super-resolved demosaicing. USP2014068749694.
  30. Georgiev, Todor G.; Chunev, Georgi N.. Methods and apparatus for rendering output images with simulated artistic effects from focused plenoptic camera data. USP2014038665341.
  31. Georgiev, Todor G.; Lumsdaine, Andrew. Methods and apparatus for rich image capture with focused plenoptic cameras. USP2013018345144.
  32. Georgiev, Todor G.; Chunev, Georgi N.; Lumsdaine, Andrew. Methods and apparatus for super-resolution in integral photography. USP2014058724000.
  33. Georgiev, Todor G.; Lumsdaine, Andrew. Methods, apparatus, and computer-readable storage media for depth-based rendering of focused plenoptic camera data. USP2014088817015.
  34. Onoda,Hitoshi; Ohtaka,Keiji; Kadohara,Terutake. Optical device and method for selecting object of focus. USP2006077071985.
  35. Kanai, Moriyasu. Optical system of a focus detection apparatus. USP2010107817912.
  36. Georgiev, Todor G.. Plenoptic camera. USP2012088238738.
  37. Georgiev, Todor G.. Plenoptic camera. USP2009117620309.
  38. Georgiev, Todor G.. Plenoptic camera with large depth of field. USP2012098265478.
  39. Georgiev, Todor G.; Intwala, Chintan; Babacan, Sevket Derin. Radiance processing by demultiplexing in the frequency domain. USP2013108559756.
  40. Berestka, John; Berestka, Noah John. Systems and methods for analyzing the eye. USP20181010092183.
  41. Georgiev, Todor G.. Thin plenoptic cameras using microspheres. USP2015119197798.
  42. Georgiev, Todor G.. Thin plenoptic cameras using solid immersion lenses. USP2015059030550.

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