FR2445977A1 - Installation de balayage par faisceau laser module, utilisable notamment dans les procedes d'impression - Google Patents
Installation de balayage par faisceau laser module, utilisable notamment dans les procedes d'impressionInfo
- Publication number
- FR2445977A1 FR2445977A1 FR7931404A FR7931404A FR2445977A1 FR 2445977 A1 FR2445977 A1 FR 2445977A1 FR 7931404 A FR7931404 A FR 7931404A FR 7931404 A FR7931404 A FR 7931404A FR 2445977 A1 FR2445977 A1 FR 2445977A1
- Authority
- FR
- France
- Prior art keywords
- laser beam
- facets
- modulated
- scanning system
- beam scanning
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
- G02B26/127—Adaptive control of the scanning light beam, e.g. using the feedback from one or more detectors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
- G02B27/0031—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for scanning purposes
-
- 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
- H04N1/0473—Detection, control or error compensation of scanning velocity or position in subscanning direction, e.g. picture start or line-to-line synchronisation
-
- 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
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02406—Arrangements for positioning elements within a head
- H04N2201/02439—Positioning method
-
- 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
- H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
-
- 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
- H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
- H04N2201/04712—Detection of scanning velocity or position using dedicated detectors using unbroken arrays of detectors, i.e. detectors mounted on the same substrate
-
- 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
- H04N2201/04734—Detecting at frequent intervals, e.g. once per line for sub-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
- H04N2201/04744—Detection of scanning velocity or position by detecting the scanned beam or a reference beam
-
- 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
- H04N2201/0476—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area using an optical, electro-optical or acousto-optical element
- H04N2201/04765—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area using an optical, electro-optical or acousto-optical element using a solid-state deflector, e.g. an acousto-optic deflector
-
- 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
- H04N2201/04794—Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
Dans cette installation, une source lumineuse 10, telle qu'un faisceau laser par exemple, est modulée de façon opto-acoustique en fonction des données d'entrée choisies. Le faisceau laser ainsi modulé est envoyé sur un miroir polygonal 28 à plusieurs facettes 26 qui tourne à une vitesse angulaire constante. Lorsque les facettes réfléchissantes successives du miroir sont éclairées, la lumière réfléchie engendre plusieurs lignes de balayage formées par des points successifs qui se déplacent sur un photorécepteur en mouvement 32, ces points étant modulés pour engendrer des caractères ou la réplique enregistrée d'une image originale. L'installation comporte des moyens pour corriger les erreurs dues aux défauts de position des facettes du miroir polygonal 28.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/972,582 US4195316A (en) | 1978-12-22 | 1978-12-22 | Apparatus and method for correcting imperfection in a polygon used for laser scanning |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2445977A1 true FR2445977A1 (fr) | 1980-08-01 |
FR2445977B1 FR2445977B1 (fr) | 1983-08-26 |
Family
ID=25519844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7931404A Granted FR2445977A1 (fr) | 1978-12-22 | 1979-12-21 | Installation de balayage par faisceau laser module, utilisable notamment dans les procedes d'impression |
Country Status (6)
Country | Link |
---|---|
US (1) | US4195316A (fr) |
JP (1) | JPS5589814A (fr) |
CA (1) | CA1116226A (fr) |
DE (1) | DE2951435A1 (fr) |
FR (1) | FR2445977A1 (fr) |
GB (1) | GB2040511B (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4308544A (en) * | 1979-11-05 | 1981-12-29 | Xerox Corporation | Electronic alignment of laser beam utilized in a laser scanning system |
JPS56156855A (en) * | 1980-05-09 | 1981-12-03 | Hitachi Ltd | Print control system |
JPS56156856A (en) * | 1980-05-09 | 1981-12-03 | Hitachi Ltd | Printer |
US4320420A (en) * | 1980-07-03 | 1982-03-16 | Xerox Corporation | Hybrid bit clock servo |
US4403235A (en) * | 1981-06-23 | 1983-09-06 | Burroughs Corporation | Optical scanning and imaging system utilizing laser diode |
JPS58137739A (ja) * | 1982-02-10 | 1983-08-16 | Konishiroku Photo Ind Co Ltd | 表面欠陥検出装置 |
US4441126A (en) * | 1982-05-06 | 1984-04-03 | Sperry Corporation | Adaptive corrector of facet errors in mirror scanning systems |
JPS6023820A (ja) * | 1983-07-19 | 1985-02-06 | Fuji Photo Film Co Ltd | 放射線画像情報読取誤差補正方法 |
US4620237A (en) * | 1984-10-22 | 1986-10-28 | Xerox Corporation | Fast scan jitter measuring system for raster scanners |
US4694156A (en) * | 1986-02-14 | 1987-09-15 | Xerox Corporation | Pixel placement sensing arrangement using split detecting elements |
JP2572300B2 (ja) * | 1990-08-21 | 1997-01-16 | 大日本スクリーン製造株式会社 | 画像走査装置 |
IL105188A (en) * | 1993-03-28 | 1998-02-08 | Scitex Corp Ltd | scanner |
US6542304B2 (en) | 1999-05-17 | 2003-04-01 | Toolz, Ltd. | Laser beam device with apertured reflective element |
JP5531784B2 (ja) * | 2010-05-27 | 2014-06-25 | 株式会社リコー | 光走査装置及び画像形成装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4002830A (en) * | 1975-01-22 | 1977-01-11 | Laser Graphic Systems Corporation | Apparatus for compensating for optical error in a rotative mirror |
US4130339A (en) * | 1976-03-16 | 1978-12-19 | Canon Kabushiki Kaisha | Scanning optical system including optical system for detecting an information beam |
US4206348A (en) * | 1978-06-05 | 1980-06-03 | Eastman Kodak Company | Optical scanner with electrooptical feedback for beam positioning |
US4214157A (en) * | 1978-07-07 | 1980-07-22 | Pitney Bowes, Inc. | Apparatus and method for correcting imperfection in a polygon used for laser scanning |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3750189A (en) * | 1971-10-18 | 1973-07-31 | Ibm | Light scanning and printing system |
DE2443379A1 (de) * | 1974-09-11 | 1976-03-25 | Agfa Gevaert Ag | Verfahren und vorrichtung zur optischen abtastung von zeilenweise aufgezeichneten signalen |
JPS6111018B2 (fr) * | 1974-10-18 | 1986-04-01 | Fuji Photo Film Co Ltd | |
JPS52108142A (en) * | 1976-03-08 | 1977-09-10 | Fuji Photo Film Co Ltd | Light beam scanning system |
JPS52132848A (en) * | 1976-04-28 | 1977-11-07 | Fuji Photo Film Co Ltd | Simultaneous light detecting method |
-
1978
- 1978-12-22 US US05/972,582 patent/US4195316A/en not_active Expired - Lifetime
-
1979
- 1979-11-06 CA CA339,255A patent/CA1116226A/fr not_active Expired
- 1979-12-20 JP JP16628879A patent/JPS5589814A/ja active Pending
- 1979-12-20 DE DE19792951435 patent/DE2951435A1/de active Granted
- 1979-12-21 FR FR7931404A patent/FR2445977A1/fr active Granted
- 1979-12-21 GB GB7944083A patent/GB2040511B/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4002830A (en) * | 1975-01-22 | 1977-01-11 | Laser Graphic Systems Corporation | Apparatus for compensating for optical error in a rotative mirror |
US4130339A (en) * | 1976-03-16 | 1978-12-19 | Canon Kabushiki Kaisha | Scanning optical system including optical system for detecting an information beam |
US4206348A (en) * | 1978-06-05 | 1980-06-03 | Eastman Kodak Company | Optical scanner with electrooptical feedback for beam positioning |
US4214157A (en) * | 1978-07-07 | 1980-07-22 | Pitney Bowes, Inc. | Apparatus and method for correcting imperfection in a polygon used for laser scanning |
Non-Patent Citations (1)
Title |
---|
EXBK/78 * |
Also Published As
Publication number | Publication date |
---|---|
DE2951435A1 (de) | 1980-07-10 |
CA1116226A (fr) | 1982-01-12 |
GB2040511B (en) | 1983-02-16 |
US4195316A (en) | 1980-03-25 |
DE2951435C2 (fr) | 1991-02-07 |
GB2040511A (en) | 1980-08-28 |
JPS5589814A (en) | 1980-07-07 |
FR2445977B1 (fr) | 1983-08-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |