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GB2332561B - Light intensity controlling device - Google Patents

Light intensity controlling device

Info

Publication number
GB2332561B
GB2332561B GB9906748A GB9906748A GB2332561B GB 2332561 B GB2332561 B GB 2332561B GB 9906748 A GB9906748 A GB 9906748A GB 9906748 A GB9906748 A GB 9906748A GB 2332561 B GB2332561 B GB 2332561B
Authority
GB
United Kingdom
Prior art keywords
light intensity
controlling device
intensity controlling
light
intensity
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 - Fee Related
Application number
GB9906748A
Other versions
GB2332561A (en
GB9906748D0 (en
Inventor
Tadashi Minakuchi
Taminori Odano
Masahiro Oono
Mitsunori Iima
Hiroshi Kanazawa
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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
Priority claimed from JP7155180A external-priority patent/JPH08330662A/en
Priority claimed from JP07518296A external-priority patent/JP3283179B2/en
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority claimed from GB9611297A external-priority patent/GB2301701B/en
Publication of GB9906748D0 publication Critical patent/GB9906748D0/en
Publication of GB2332561A publication Critical patent/GB2332561A/en
Application granted granted Critical
Publication of GB2332561B publication Critical patent/GB2332561B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/47—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light
    • B41J2/471—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror
    • 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
    • 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)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Laser Beam Printer (AREA)
GB9906748A 1995-05-30 1996-05-30 Light intensity controlling device Expired - Fee Related GB2332561B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP7155180A JPH08330662A (en) 1995-05-30 1995-05-30 Laser power detector
JP07518296A JP3283179B2 (en) 1996-03-05 1996-03-05 Light intensity control device and light intensity control method
GB9611297A GB2301701B (en) 1995-05-30 1996-05-30 Light power detecting device

Publications (3)

Publication Number Publication Date
GB9906748D0 GB9906748D0 (en) 1999-05-19
GB2332561A GB2332561A (en) 1999-06-23
GB2332561B true GB2332561B (en) 1999-11-17

Family

ID=27268297

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9906744A Expired - Fee Related GB2332560B (en) 1995-05-30 1996-05-30 Light intensity controlling device
GB9906748A Expired - Fee Related GB2332561B (en) 1995-05-30 1996-05-30 Light intensity controlling device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9906744A Expired - Fee Related GB2332560B (en) 1995-05-30 1996-05-30 Light intensity controlling device

Country Status (1)

Country Link
GB (2) GB2332560B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1681171A1 (en) * 2005-01-13 2006-07-19 Custom Engineering SpA Laser writing head for printer
CN112133412A (en) * 2020-09-27 2020-12-25 上海联影医疗科技股份有限公司 Method and device for determining rotation angle of rack
CN119533435B (en) * 2024-11-29 2026-01-30 中山大学 A solid-state active laser gyroscope and its measurement method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949345A (en) * 1989-06-30 1990-08-14 Microelectronics And Computer Technology Corporation Method and apparatus for reducing the effect of random polarization on the power/energy output of lasers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129854A (en) * 1983-01-18 1984-07-26 Dainippon Screen Mfg Co Ltd Light quantity correcting method in case of scanning and recording of picture
JPH01105268A (en) * 1986-04-05 1989-04-21 Ricoh Co Ltd Method and device for stabilizing the output of a light beam for information recording

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949345A (en) * 1989-06-30 1990-08-14 Microelectronics And Computer Technology Corporation Method and apparatus for reducing the effect of random polarization on the power/energy output of lasers

Also Published As

Publication number Publication date
GB2332560B (en) 1999-11-17
GB9906744D0 (en) 1999-05-19
GB2332561A (en) 1999-06-23
GB2332560A (en) 1999-06-23
GB9906748D0 (en) 1999-05-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030530