DE60044232D1 - Optisches Schreibgerät und -Verfahren - Google Patents

Optisches Schreibgerät und -Verfahren

Info

Publication number
DE60044232D1
DE60044232D1 DE60044232T DE60044232T DE60044232D1 DE 60044232 D1 DE60044232 D1 DE 60044232D1 DE 60044232 T DE60044232 T DE 60044232T DE 60044232 T DE60044232 T DE 60044232T DE 60044232 D1 DE60044232 D1 DE 60044232D1
Authority
DE
Germany
Prior art keywords
writing instrument
optical writing
optical
instrument
writing
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
DE60044232T
Other languages
English (en)
Inventor
Yoshito Ikeda
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Application granted granted Critical
Publication of DE60044232D1 publication Critical patent/DE60044232D1/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
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/4005—Circuits exciting or modulating particular heads for reproducing continuous tone value scales with regulating circuits, e.g. dependent upon ambient temperature or feedback control
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1204—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers involving the fast moving of an optical beam in the main scanning direction
    • G06K15/1219—Detection, control or error compensation of scanning velocity or position, e.g. synchronisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1238—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point
    • G06K15/1257—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point on more than one main scanning line
    • G06K15/1261—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point on more than one main scanning line using an array of light sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
    • H04N1/4015—Compensating positionally unequal response of the pick-up or reproducing head of the reproducing head
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Semiconductor Lasers (AREA)
  • Facsimile Heads (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)
DE60044232T 1999-11-30 2000-11-30 Optisches Schreibgerät und -Verfahren Expired - Lifetime DE60044232D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34125299A JP2001150726A (ja) 1999-11-30 1999-11-30 光書込装置

Publications (1)

Publication Number Publication Date
DE60044232D1 true DE60044232D1 (de) 2010-06-02

Family

ID=18344601

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60044232T Expired - Lifetime DE60044232D1 (de) 1999-11-30 2000-11-30 Optisches Schreibgerät und -Verfahren

Country Status (4)

Country Link
US (1) US6654042B2 (de)
EP (1) EP1111903B1 (de)
JP (1) JP2001150726A (de)
DE (1) DE60044232D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003198052A (ja) * 2001-12-27 2003-07-11 Noritsu Koki Co Ltd 画像露光装置
JP2004101656A (ja) 2002-09-05 2004-04-02 Ricoh Co Ltd 画像形成装置、光書込装置および光書込装置のａｐｃ制御方法
JP2004349792A (ja) * 2003-05-20 2004-12-09 Ricoh Co Ltd 光書込制御装置
US20040231481A1 (en) 2003-05-23 2004-11-25 Floding Daniel Leonard Apparatus for perforating or slitting heat shrink film
US7823366B2 (en) * 2003-10-07 2010-11-02 Douglas Machine, Inc. Apparatus and method for selective processing of materials with radiant energy
JP4570156B2 (ja) * 2005-08-24 2010-10-27 株式会社リコー 画像形成装置
US20070081068A1 (en) * 2005-10-03 2007-04-12 Matsushita Electric Industrial Co., Ltd. Image forming apparatus
JP5147331B2 (ja) * 2006-08-23 2013-02-20 キヤノン株式会社 レーザ光制御装置及び画像形成装置
JP5381497B2 (ja) * 2009-08-21 2014-01-08 株式会社リコー マルチビームレーザ光量制御回路及びマルチビームレーザ光量制御回路を利用する画像形成装置
JP5792960B2 (ja) * 2010-01-28 2015-10-14 キヤノン株式会社 画像形成装置
JP2011198918A (ja) 2010-03-18 2011-10-06 Ricoh Co Ltd 半導体レーザ駆動装置及びその半導体レーザ駆動装置を備えた画像形成装置
JP5605042B2 (ja) * 2010-07-15 2014-10-15 株式会社リコー 半導体レーザ駆動装置およびその駆動装置を備えた画像形成装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443695A (en) * 1980-01-25 1984-04-17 Canon Kabushiki Kaisha Apparatus for controlling the quantity of light
JPH01105268A (ja) * 1986-04-05 1989-04-21 Ricoh Co Ltd 情報記録用光ビ−ムの出力安定化方法及び装置
DE3850594T2 (de) * 1987-04-02 1995-02-23 Canon Kk Bildaufzeichnungsgerät.
US6069645A (en) 1994-10-31 2000-05-30 Hewlett-Packard Company Method and apparatus for controlling dot size in image forming apparatus having an array of lasers
IL118458A (en) 1995-05-30 2000-08-31 Asahi Optical Co Ltd Light intensity controlling device
EP0902586B1 (de) 1997-09-10 2005-11-16 Kabushiki Kaisha Toshiba Lichtstrahlabtast- und Bilderzeugungsgerät

Also Published As

Publication number Publication date
EP1111903B1 (de) 2010-04-21
US6654042B2 (en) 2003-11-25
EP1111903A1 (de) 2001-06-27
US20010052925A1 (en) 2001-12-20
JP2001150726A (ja) 2001-06-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition