DE2647875C2 - - Google Patents
Info
- Publication number
- DE2647875C2 DE2647875C2 DE2647875A DE2647875A DE2647875C2 DE 2647875 C2 DE2647875 C2 DE 2647875C2 DE 2647875 A DE2647875 A DE 2647875A DE 2647875 A DE2647875 A DE 2647875A DE 2647875 C2 DE2647875 C2 DE 2647875C2
- Authority
- DE
- Germany
- Prior art keywords
- image
- density
- optical
- aberration
- control device
- 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
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
- H04N1/40043—Circuits exciting or modulating particular heads for reproducing continuous tone value scales using more than one type of modulation, e.g. pulse width modulation and amplitude modulation
-
- 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
- G06K15/1209—Intensity control of the optical beam
-
- 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
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
- H04N1/036—Details of scanning heads ; Means for illuminating the original for picture information reproduction for optical reproduction
-
- 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
- H04N1/40037—Circuits exciting or modulating particular heads for reproducing continuous tone value scales the reproducing element being a laser
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimile Scanning Arrangements (AREA)
- Mechanical Optical Scanning Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50128172A JPS5932770B2 (ja) | 1975-10-24 | 1975-10-24 | ハ−フト−ン記録装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2647875A1 DE2647875A1 (de) | 1977-05-05 |
DE2647875C2 true DE2647875C2 (US06312121-20011106-C00033.png) | 1989-06-01 |
Family
ID=14978175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19762647875 Granted DE2647875A1 (de) | 1975-10-24 | 1976-10-22 | Bildaufzeichnungsgeraet |
Country Status (3)
Country | Link |
---|---|
US (1) | US4198154A (US06312121-20011106-C00033.png) |
JP (1) | JPS5932770B2 (US06312121-20011106-C00033.png) |
DE (1) | DE2647875A1 (US06312121-20011106-C00033.png) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5726962A (en) * | 1980-07-25 | 1982-02-13 | Matsushita Electric Ind Co Ltd | Photoradiation method for recorder |
JPS57142664A (en) * | 1981-02-27 | 1982-09-03 | Canon Inc | Information recorder |
US4391490A (en) * | 1981-04-02 | 1983-07-05 | Xerox Corporation | Interface for proximity coupled electro-optic devices |
US4476474A (en) * | 1981-04-02 | 1984-10-09 | Canon Kabushiki Kaisha | Dot recording apparatus |
JPS5883347A (ja) * | 1981-11-09 | 1983-05-19 | Canon Inc | 光磁気記録装置 |
US4554561A (en) * | 1983-04-11 | 1985-11-19 | Xerox Corporation | Multi-channel electro-optic printer for printing plural image lines at once |
JPH0619627B2 (ja) * | 1984-03-15 | 1994-03-16 | コニカ株式会社 | 画像記録装置 |
DE3442955A1 (de) * | 1984-11-24 | 1986-06-05 | Agfa-Gevaert Ag, 5090 Leverkusen | Verfahren und vorrichtung zur herstellung fotografischer bilder durch punktweises aufbelichten |
JPS61277261A (ja) * | 1985-05-31 | 1986-12-08 | Toshiba Corp | レ−ザプリンタ |
JPS61277255A (ja) * | 1985-05-31 | 1986-12-08 | Toshiba Corp | レ−ザプリンタ |
JP2589295B2 (ja) * | 1986-11-14 | 1997-03-12 | キヤノン株式会社 | 画像形成装置 |
US4965672A (en) * | 1987-05-11 | 1990-10-23 | The Mead Corporation | Method and apparatus for halftone imaging |
WO1989005999A1 (en) * | 1987-12-23 | 1989-06-29 | Matsushita Electric Industrial Co., Ltd. | Method of forming electrophotograph |
US5140349A (en) * | 1988-09-27 | 1992-08-18 | Canon Kabushiki Kaisha | Recording apparatus |
US7382929B2 (en) * | 1989-05-22 | 2008-06-03 | Pixel Instruments Corporation | Spatial scan replication circuit |
JPH03165176A (ja) * | 1989-11-22 | 1991-07-17 | Ricoh Co Ltd | 画像記録装置 |
JP3147458B2 (ja) * | 1992-02-05 | 2001-03-19 | ミノルタ株式会社 | デジタル画像形成法 |
US5596444A (en) * | 1993-03-02 | 1997-01-21 | Minolta Camera Kabushiki Kaisha | Optical apparatus having laser beam diameter variable according to image data |
JP3050102B2 (ja) * | 1995-09-29 | 2000-06-12 | 富士ゼロックス株式会社 | 光ビーム焦点位置検出装置、光ビーム照射装置、および光ビーム記録装置 |
CA2596161C (en) * | 2005-02-01 | 2012-07-10 | Kurt Heiberger | Method and device for measuring imaging errors in the human eye |
JP2007196580A (ja) * | 2006-01-27 | 2007-08-09 | Ricoh Co Ltd | 画像形成装置、画像形成方法、プログラム、及び記録媒体 |
CN102652260B (zh) * | 2009-12-14 | 2016-05-11 | 佳能株式会社 | 超声波控制装置、记录材料确定装置和图像形成设备 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358081A (en) * | 1964-10-20 | 1967-12-12 | Xerox Corp | Facsimile printer with ferroelectric modulator |
US3660818A (en) * | 1970-05-04 | 1972-05-02 | Rca Corp | Electro-optical memory |
US3688026A (en) * | 1970-10-29 | 1972-08-29 | Le Elektrotekhnichesky I Svyaz | Method and system for the dot-pattern recording of half-tone images |
US3736046A (en) * | 1971-04-15 | 1973-05-29 | Honeywell Inc | Optical spot size changer |
US3750189A (en) * | 1971-10-18 | 1973-07-31 | Ibm | Light scanning and printing system |
US3898627A (en) * | 1974-03-22 | 1975-08-05 | Ibm | Optical printer having serializing buffer for use with variable length binary words |
-
1975
- 1975-10-24 JP JP50128172A patent/JPS5932770B2/ja not_active Expired
-
1976
- 1976-10-22 DE DE19762647875 patent/DE2647875A1/de active Granted
-
1978
- 1978-07-06 US US05/922,314 patent/US4198154A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4198154A (en) | 1980-04-15 |
JPS5932770B2 (ja) | 1984-08-10 |
JPS5252634A (en) | 1977-04-27 |
DE2647875A1 (de) | 1977-05-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: H04N 1/23 |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition |