DE69808681D1 - Optisches Gerät - Google Patents

Optisches Gerät

Info

Publication number
DE69808681D1
DE69808681D1 DE69808681T DE69808681T DE69808681D1 DE 69808681 D1 DE69808681 D1 DE 69808681D1 DE 69808681 T DE69808681 T DE 69808681T DE 69808681 T DE69808681 T DE 69808681T DE 69808681 D1 DE69808681 D1 DE 69808681D1
Authority
DE
Germany
Prior art keywords
optical device
optical
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
DE69808681T
Other languages
English (en)
Other versions
DE69808681T2 (de
Inventor
Kazumi Tabuchi
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Publication of DE69808681D1 publication Critical patent/DE69808681D1/de
Application granted granted Critical
Publication of DE69808681T2 publication Critical patent/DE69808681T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/047—Detection, control or error compensation of scanning velocity or position
    • H04N1/053—Detection, control or error compensation of scanning velocity or position in main scanning direction, e.g. synchronisation of line start or picture elements in a line
    • 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
    • H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors
    • H04N1/1135—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors for the main-scan only
    • 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
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04732—Detecting at infrequent intervals, e.g. once or twice per line for main-scan control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04748—Detection of scanning velocity or position by detecting synchronisation signals or driving signals, e.g. page sync
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04758—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area
    • H04N2201/04767—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area by controlling the timing of the signals, e.g. by controlling the frequency o phase of the pixel clock
    • H04N2201/04768—Controlling the frequency of the signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04758—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area
    • H04N2201/04767—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area by controlling the timing of the signals, e.g. by controlling the frequency o phase of the pixel clock
    • H04N2201/04781—Controlling the phase of the signals
    • H04N2201/04786—Controlling a start time, e.g. for output of a line of data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04793—Control or error compensation of scanning position or velocity using stored control or compensation data, e.g. previously measured data

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Optical Communication System (AREA)
  • Optical Head (AREA)
DE69808681T 1997-02-18 1998-02-18 Optisches Gerät Expired - Lifetime DE69808681T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03361297A JP3357562B2 (ja) 1997-02-18 1997-02-18 光学装置

Publications (2)

Publication Number Publication Date
DE69808681D1 true DE69808681D1 (de) 2002-11-21
DE69808681T2 DE69808681T2 (de) 2003-06-12

Family

ID=12391291

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69808681T Expired - Lifetime DE69808681T2 (de) 1997-02-18 1998-02-18 Optisches Gerät

Country Status (4)

Country Link
US (1) US6211898B1 (de)
EP (1) EP0859505B1 (de)
JP (1) JP3357562B2 (de)
DE (1) DE69808681T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6547410B1 (en) * 2000-07-28 2003-04-15 911 Emergency Products, Inc. LED alley/take-down light
JP2007125738A (ja) * 2005-11-01 2007-05-24 Ricoh Co Ltd 光書込装置及び画像形成装置
TWI401471B (zh) * 2009-09-24 2013-07-11 Silicon Touch Tech Inc 液晶光學透鏡及其製作方法、應用液晶光學透鏡的鏡頭裝置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062061A (en) 1976-04-15 1977-12-06 Xerox Corporation Error log for electrostatographic machines
JPS6244712A (ja) 1985-08-23 1987-02-26 Fuji Photo Film Co Ltd 同期信号発生方法
JP2848594B2 (ja) * 1986-03-22 1999-01-20 株式会社東芝 像形成装置
US5053619A (en) * 1988-08-12 1991-10-01 Hitachi, Ltd. Variable density scanning apparatus
JPH02232616A (ja) 1988-12-23 1990-09-14 Xerox Corp ディジタルプリンタ
JPH0353212A (ja) 1989-07-21 1991-03-07 Minolta Camera Co Ltd 光ビーム走査装置
JPH04149510A (ja) * 1990-10-12 1992-05-22 Brother Ind Ltd 解像度検出装置
JPH04189065A (ja) * 1990-11-22 1992-07-07 Hitachi Ltd 画像印刷装置
US6122068A (en) * 1991-06-17 2000-09-19 Canon Kabushiki Kaisha Image forming apparatus
US5453851A (en) * 1992-07-31 1995-09-26 E. I. Du Pont De Nemours And Company Error reduction methods in scanning systems
JPH06155809A (ja) 1992-11-16 1994-06-03 Brother Ind Ltd ドットプリンタ
AU680210B2 (en) * 1993-01-29 1997-07-24 Canon Kabushiki Kaisha Electric power accumulating apparatus and electric power system
JPH0811347A (ja) 1994-07-04 1996-01-16 Fuji Xerox Co Ltd 画素クロック発生装置
US5745154A (en) * 1995-01-13 1998-04-28 Fuji Xerox Co., Ltd. Digital image forming apparatus with scan synchronization
JPH0983750A (ja) * 1995-09-20 1997-03-28 Toshiba Corp 画像形成装置およびその制御方法

Also Published As

Publication number Publication date
JPH10227987A (ja) 1998-08-25
EP0859505A2 (de) 1998-08-19
EP0859505A3 (de) 1999-12-29
DE69808681T2 (de) 2003-06-12
JP3357562B2 (ja) 2002-12-16
US6211898B1 (en) 2001-04-03
EP0859505B1 (de) 2002-10-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition