JPH0376063B2 - - Google Patents

Info

Publication number
JPH0376063B2
JPH0376063B2 JP57179979A JP17997982A JPH0376063B2 JP H0376063 B2 JPH0376063 B2 JP H0376063B2 JP 57179979 A JP57179979 A JP 57179979A JP 17997982 A JP17997982 A JP 17997982A JP H0376063 B2 JPH0376063 B2 JP H0376063B2
Authority
JP
Japan
Prior art keywords
scanning
photoelectric conversion
output signal
laser beam
beam spot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP57179979A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5970359A (ja
Inventor
Jinichi Hongo
Shoichi Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP57179979A priority Critical patent/JPS5970359A/ja
Publication of JPS5970359A publication Critical patent/JPS5970359A/ja
Publication of JPH0376063B2 publication Critical patent/JPH0376063B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)
JP57179979A 1982-10-15 1982-10-15 レ−ザビ−ム走査系のビ−ム位置検出装置 Granted JPS5970359A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57179979A JPS5970359A (ja) 1982-10-15 1982-10-15 レ−ザビ−ム走査系のビ−ム位置検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57179979A JPS5970359A (ja) 1982-10-15 1982-10-15 レ−ザビ−ム走査系のビ−ム位置検出装置

Publications (2)

Publication Number Publication Date
JPS5970359A JPS5970359A (ja) 1984-04-20
JPH0376063B2 true JPH0376063B2 (enrdf_load_stackoverflow) 1991-12-04

Family

ID=16075327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57179979A Granted JPS5970359A (ja) 1982-10-15 1982-10-15 レ−ザビ−ム走査系のビ−ム位置検出装置

Country Status (1)

Country Link
JP (1) JPS5970359A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6179313U (enrdf_load_stackoverflow) * 1984-10-29 1986-05-27
WO2003063393A1 (en) * 2002-01-03 2003-07-31 Lumenlink, Co. Ltd. Alignment method of the optical transmitter and receiver in the optical wireless communication system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449147A (en) * 1977-09-27 1979-04-18 Canon Inc Recorder
JPS55144206A (en) * 1979-04-27 1980-11-11 Mitsubishi Electric Corp Laser light deflector

Also Published As

Publication number Publication date
JPS5970359A (ja) 1984-04-20

Similar Documents

Publication Publication Date Title
US5231280A (en) Focusing error detection apparatus using a first and second knife edge at different positions
US4595294A (en) Position detecting device
JPH0376063B2 (enrdf_load_stackoverflow)
US4593386A (en) Optical disc player with improved tracking control
JP2701392B2 (ja) フオーカスエラー検出回路
JP2500733B2 (ja) レ―ザ測距装置
JPS63165979A (ja) バ−コ−ド信号２値化回路
US4805164A (en) Disc inclination detecting apparatus
JPH01206212A (ja) 距離測定装置
USRE33506E (en) Disc inclination detecting apparatus
JPS58127108A (ja) 光ビ−ム走査装置の走査位置検出装置
JPH05101211A (ja) バーコード信号２値化装置
JPH05164554A (ja) 光学式検出装置
JPH06148542A (ja) 光ビーム走査基準信号生成装置
JP2934007B2 (ja) 物体検知装置
KR890005684A (ko) 데이타 재생장치
JPH0355048Y2 (enrdf_load_stackoverflow)
KR910008343Y1 (ko) 콤팩트 디스크의 트래킹 에러의 시간차 검출회로
SU1767478A2 (ru) Устройство дл контрол положени мобильного объекта относительно ориентирующей линии
JPH0226726B2 (enrdf_load_stackoverflow)
JPH0712592A (ja) 変位原点検出装置
JPS59218635A (ja) 光学式情報記録装置
JPS62245907A (ja) 光学式測定装置
JPH04276318A (ja) トラックエラー信号の処理方法
JPS61265879A (ja) 光変調形検出装置