JPS6342432B2 - - Google Patents
Info
- Publication number
- JPS6342432B2 JPS6342432B2 JP862180A JP862180A JPS6342432B2 JP S6342432 B2 JPS6342432 B2 JP S6342432B2 JP 862180 A JP862180 A JP 862180A JP 862180 A JP862180 A JP 862180A JP S6342432 B2 JPS6342432 B2 JP S6342432B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- recording
- semiconductor laser
- light
- 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
- 239000004065 semiconductor Substances 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000010355 oscillation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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
- G06K15/1209—Intensity control of the optical beam
- G06K15/1214—Intensity control of the optical beam by feedback
-
- 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
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
-
- 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)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Facsimile Scanning Arrangements (AREA)
- Semiconductor Lasers (AREA)
- Led Devices (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP862180A JPS56105686A (en) | 1980-01-28 | 1980-01-28 | Controller for quantity of light |
US06/225,345 US4443695A (en) | 1980-01-25 | 1981-01-15 | Apparatus for controlling the quantity of light |
DE3153710A DE3153710C2 (de) | 1980-01-25 | 1981-01-23 | Strahlungsmengen-Steuereinrichtung |
DE19813102185 DE3102185A1 (de) | 1980-01-25 | 1981-01-23 | Steuereinrichtung zur strahlungsmengensteuerung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP862180A JPS56105686A (en) | 1980-01-28 | 1980-01-28 | Controller for quantity of light |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56105686A JPS56105686A (en) | 1981-08-22 |
JPS6342432B2 true JPS6342432B2 (es) | 1988-08-23 |
Family
ID=11698006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP862180A Granted JPS56105686A (en) | 1980-01-25 | 1980-01-28 | Controller for quantity of light |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56105686A (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6678295B2 (en) * | 2000-05-11 | 2004-01-13 | Brother Kogyo Kabushiki Kaisha | Laser drive control apparatus and methods |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56140477A (en) * | 1980-04-02 | 1981-11-02 | Ricoh Co Ltd | Laser driving control system |
JPH0712709B2 (ja) * | 1986-12-26 | 1995-02-15 | 株式会社東芝 | 画像形成装置 |
JPS63134498U (es) * | 1987-02-25 | 1988-09-02 | ||
JPH02192693A (ja) * | 1988-12-06 | 1990-07-30 | Anritsu Corp | 安定化光源装置 |
US6204870B1 (en) | 1998-09-08 | 2001-03-20 | Canon Kabushiki Kaisha | Image formation apparatus control by measurement of image patterns having different emission rising characteristics |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54129904A (en) * | 1978-03-31 | 1979-10-08 | Fujitsu Ltd | Doubling system of light source |
-
1980
- 1980-01-28 JP JP862180A patent/JPS56105686A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54129904A (en) * | 1978-03-31 | 1979-10-08 | Fujitsu Ltd | Doubling system of light source |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6678295B2 (en) * | 2000-05-11 | 2004-01-13 | Brother Kogyo Kabushiki Kaisha | Laser drive control apparatus and methods |
Also Published As
Publication number | Publication date |
---|---|
JPS56105686A (en) | 1981-08-22 |
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