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특허 상세정보

Focusing device

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G03B-013/00    H04N-005/232   
미국특허분류(USC) 348/356; 396/122
출원번호 US-0571875 (2000-05-09)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Pamela R. Crocker
인용정보 피인용 횟수 : 23  인용 특허 : 4
초록

A focusing device includes a movable focusing lens adapted to be moved to different positions, a conversion element for converting light incident on and transmitted through the focusing lens into a signal, and a lens driving mechanism for moving the focusing lens. The focusing device further includes a focus evaluation value calculation unit for calculating a focus evaluation value for each position of the focusing lens based on the signal from the conversion element, and a lens position specifying unit for specifying a position of the focusing lens caus...

대표
청구항

1. A focusing device, comprising:a movable focusing lens adapted to be moved to different positions; a conversion element for converting light incident on and transmitted through said focusing lens into a signal; a lens driving mechanism for moving said focusing lens; a focus evaluation value calculation unit for calculating a focus evaluation value for each position of said focusing lens based on the signal from the conversion element; and a lens position specifying unit for specifying a position of said focusing lens causing a maximum focus evaluation ...

이 특허를 인용한 특허 피인용횟수: 23

  1. Yasuda, Hitoshi. Auto-focusing apparatus and image pickup apparatus including the same. USP2011098023035.
  2. Huang, Xiaolin. Automatic focus for image sensors. USP2009097589781.
  3. Lee,Jeong ho. Automatic focusing method and digital photographing apparatus using the same. USP2008107432975.
  4. Border, John N.; Enge, Amy D.; Morales, Efrain O.; Pillman, Bruce H.; Jacoby, Keith A.; Adams, Jr., James E.; Palum, Russell J.; Gallagher, Andrew C.. Camera using multiple lenses and image sensors in a rangefinder configuration to provide a range map. USP2010037683962.
  5. Janson, Jr., Wilbert F.; Parulski, Kenneth A.. Camera using multiple lenses and image sensors operable in a default imaging mode. USP2010067729602.
  6. Border, John N.; Palum, Russell J.; Janson, Jr., Wilbert F.; Parulski, Kenneth A.; Jacoby, Keith A.. Camera using multiple lenses and image sensors to provide improved focusing capability. USP2010037676146.
  7. Ikemoto, Kiyokatsu. Distance detecting device, imaging apparatus, distance detecting method and parallax-amount detecting device. USP2017039596403.
  8. Border, John N.; Guidash, Robert M.. Dithered focus evaluation. USP2012048164682.
  9. Border, John N.; Palum, Russell J.. Dual range focus element. USP2010127852454.
  10. Yasuda,Hitoshi. Focus adjusting apparatus and focus adjusting method. USP2006077079187.
  11. Sagisaka, Hiroshi; Nagoshi, Keisuke. Image processing apparatus having a candidate focus position extracting portion and corresponding focus adjusting method. USP2014118878977.
  12. Compton, John T.; Hamilton, Jr., John F.. Image sensor with improved light sensitivity. USP2012038139130.
  13. Compton, John T.; Hamilton, Jr., John F.. Image sensor with improved light sensitivity. USP2012128330839.
  14. Compton, John T.; Hamilton, Jr., John F.; DeWeese, Thomas E.. Image sensor with improved light sensitivity. USP2012068194296.
  15. Spears, Kurt E.. Imaging system and method. USP2012028125695.
  16. Parulski, Kenneth A.; Janson, Jr., Wilbert F.; Border, John N.; Fredlund, John R.; Manico, Joseph A.; Parada, Jr., Robert J.. Method and apparatus for operating a dual lens camera to augment an image. USP2010127859588.
  17. Subbotin, Igor. Method and apparatus of determining the best focus position of a lens. USP2010087769286.
  18. Zahniser, Michael. Method for assessing image focus quality. USP2010087769219.
  19. Zahniser, Michael. Method for assessing image focus quality. USP2011098014583.
  20. Sugimoto, Masahiko. Photographing apparatus and in-focus position searching method. USP2012118310586.
  21. Hamilton, Jr., John F.; Compton, John T.. Processing color and panchromatic pixels. USP2012098274715.
  22. Hamilton, Jr., John F.; Compton, John T.. Processing color and panchromatic pixels. USP2014048711452.
  23. Enge, Amy D.; Compton, John T.; Pillman, Bruce H.. Providing multiple video signals from single sensor. USP2013048416339.