$\require{mediawiki-texvc}$

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

Optical transducer and focusing system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01J-001/20
출원번호 US-0909860 (1978-05-26)
발명자 / 주소
  • Elliott James E. (San Pedro CA) Mickelson Lee (Long Beach CA)
출원인 / 주소
  • MCA Discovision, Inc. (Universal City CA 02)
인용정보 피인용 횟수 : 34  인용 특허 : 2

초록

An optical transducer having concentric radiant beam detectors for converting a radiant beam to electrical signals including a first axially placed detector with a second detector concentric therewith. In one embodiment, the detectors receive the radiant beam through an amplifying auxiliary lens. Ch

대표청구항

A lens focusing system, comprising: source means for producing a beam of radiation to be focused on and reflected from a surface; a lens; focusing means for moving said lens to focus said beam of radiation on the surface; transducer means, disposed in the path of the reflected radiation, said transd

이 특허에 인용된 특허 (2)

  1. Van Dijk Ate (Eindhoven NL), Autofocus circuit for a videodisc playback device.
  2. Elliott James E. (San Pedro CA), Focusing system for videodisc player.

이 특허를 인용한 특허 (34)

  1. Smith William V. (Irvine CA), Angularly multiplexed optical recording medium.
  2. Ceshkovsky Ludwig, Apparatus and method for controlling a focused beam.
  3. Ceshkovsky Ludwig, Apparatus and method for focus control.
  4. Roth Maxim (Cupertino CA) Godwin Jimmy D. (San Jose CA) Williams Roger O. (Fremont CA), Apparatus and method for optical servo control with media having information storage and servo control regions of differ.
  5. Kubota Shigeo (Tokyo JPX), Apparatus for detecting a position of an optical pickup.
  6. Reilly Charles (Pasadena CA) Laub Leonard (Pasadena CA) Rose Dennis (Claremont CA), Apparatus for reading information stored in a track pattern on a radiation reflecting record.
  7. Ceshkovsky Ludwig, Closed loop servo operation for focus control.
  8. Prikryl Ivan (Colorado Springs CO), Concentric photodetector arrangement for focusing and tracking.
  9. Burns Richard H. (North Hollywood CA) Smith Michael R. (Thousand Oaks CA) Bell Irving J. (Canoga Park CA) Crabtree Kenneth (Saugus CA), Cursor apparatus for interactive graphic display system.
  10. Aoi Shigeru (Kawasaki JPX), Error signal producing device having improved linearity.
  11. Hazel Robert L. (Thousand Oaks CA) Chan Gilbert Y. (Agoura CA), Focus detection and control apparatus for maintaining accurate focusing in an optical memory system by detecting reflect.
  12. Kotaka Fumitaka (Saitama JPX) Maeda Takanori (Saitama JPX), Focus error detector.
  13. Shishido, Yoshio, Focusing detecting device with coaxial source and detector.
  14. Uejima Atsushi (Kanagawa JPX), Focussing error detection device for use in optical disk type recording system.
  15. Ceshkovsky Ludwig (Fountain Valley CA) Dakin Wayne R. (Redondo Beach CA), Gain correction system for videodisc player apparatus.
  16. Kimura Fumio (Tokyo JPX), Method and apparatus for detecting focussing position deviation of read/write apparatus in an optical recording medium.
  17. Tisue James G. (7 Morning Sun Ct. Mountain View CA 94043), Method and apparatus for suppressing the effects of surface light scatter in optical reflective scanning system.
  18. Yoshimoto Takeshi (Kyoto JPX) Tsuda Masanari (Kyoto JPX) Masuda Yoshikazu (Osaka JPX) Yokoi Masakatsu (Kyoto JPX), Method for focus adjustment of a picture scanning and recording system.
  19. Burke Victor B. (1692 Kingsley Ave. Akron OH 44313), Noncontact gage system utilizing reflected light.
  20. Jebens, Robert W., Optical focus sensor.
  21. Hazel, Robert L.; Chan, Gilbert Y., Optical memory system providing improved focus detection and control by detecting reflected beam diameter variations at spaced predetermined locations in the system.
  22. Hazel Robert L. (Thousand Oaks CA) Chan Gilbert Y. (Agoura CA), Optical memory system providing improved focusing control and improved beam combining and separating apparatus.
  23. Maeda Takanori (Saitama JPX), Optical pickup device having particularly shaped photodetectors for providing an accurate focus error.
  24. Aarts Ronaldus M. (Eindhoven NLX), Optical reader with a limiter in the tracking or focus error servo control loop.
  25. Shishido, Yoshio; Nishigaki, Shinichi; Kato, Shinichi; Matsuo, Kazumasa; Miyazaki, Atsushi; Takahashi, Susumu; Nakamura, Takeaki; Ishikawa, Akibumi, Photosensor for optical observing or photographing devices.
  26. Lurie Michael J. (East Brunswick NJ), Quasi-zoom lens optical focus sensor.
  27. Ceshkovsky Ludwig (Fountain Valley CA) Dakin Wayne R. (Redondo Beach CA), Spindle servo system for videodisc player.
  28. Ceshkovsky Ludwig, Technique for closed loop servo operation in optical disc tracking control.
  29. Ceshkovsky Ludwig (Fountain Valley CA), Technique for closed loop servo operation in optical disc tracking control.
  30. Ceshkovsky Ludwig (Fountain Valley CA) Dakin Wayne R. (Redondo Beach CA), Time base error correction system for player.
  31. Ceshkovsky Ludwig (Fountain Valley CA), Tracking control apparatus and method.
  32. Wilkinson Richard L. (Torrance CA) Vitale George (Torrance CA), Video recorder-playback machine.
  33. Wilkinson Richard L. (Torrance CA) Vitale George (Torrance CA), Video recorder-playback machine.
  34. Henry Kelley A. (Woburn MA), Weak lens focus adjusting mechanism based upon thickness of scanned material and imagesetter using same.
섹션별 컨텐츠 바로가기

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

AI-Helper 아이콘
AI-Helper
안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

선택된 텍스트