KR960010411B1 - Holographic laser scanning unit in lbp - Google Patents

Holographic laser scanning unit in lbp Download PDF

Info

Publication number
KR960010411B1
KR960010411B1 KR92006976A KR920006976A KR960010411B1 KR 960010411 B1 KR960010411 B1 KR 960010411B1 KR 92006976 A KR92006976 A KR 92006976A KR 920006976 A KR920006976 A KR 920006976A KR 960010411 B1 KR960010411 B1 KR 960010411B1
Authority
KR
South Korea
Prior art keywords
hologram
disk
lbp
scanning unit
laser scanning
Prior art date
Application number
KR92006976A
Other languages
Korean (ko)
Other versions
KR930021398A (en
Inventor
Keun-Young Yang
Sung-Woo Noh
Original Assignee
Lg Electronics Inc
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 Lg Electronics Inc filed Critical Lg Electronics Inc
Priority to KR92006976A priority Critical patent/KR960010411B1/en
Priority to GB9308398A priority patent/GB2266785B/en
Priority to JP5099699A priority patent/JPH06102465A/en
Publication of KR930021398A publication Critical patent/KR930021398A/en
Application granted granted Critical
Publication of KR960010411B1 publication Critical patent/KR960010411B1/en

Links

Classifications

    • 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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4244—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in wavelength selecting devices
    • 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
    • B41J2/447—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 arrays of radiation sources
    • B41J2/455—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 arrays of radiation sources using laser arrays, the laser array being smaller than the medium to be recorded
    • 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
    • G02B26/106—Scanning systems having diffraction gratings as scanning elements, e.g. holographic scanners
    • 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
    • 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
    • G02B27/0037—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 with diffracting elements
    • 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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4272—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path
    • G02B27/4277—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having plural diffractive elements positioned sequentially along the optical path being separated by an air space
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • 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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/425—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in illumination systems

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

The unit reduces the cost and obtains a high resolution by using a hologram disk and a hologram for wave compensation instead of rotational multilateral mirrors and complex lenses, and therefor includes a laser diode, a hologram diffracting the laser emitted from the diode at a certain angle and reducing its divergence angle, a hologram disk diffracting, concentrating and scanning the laser beam reproduced by the hologram, a disk-rotating motor, and a concave mirror re-concentrating the laser beam emitted from the hologram.
KR92006976A 1992-04-24 1992-04-24 Holographic laser scanning unit in lbp KR960010411B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR92006976A KR960010411B1 (en) 1992-04-24 1992-04-24 Holographic laser scanning unit in lbp
GB9308398A GB2266785B (en) 1992-04-24 1993-04-23 Holographic laser scanning unit for laser printer
JP5099699A JPH06102465A (en) 1992-04-24 1993-04-26 Holographic laser scanning device for laser printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92006976A KR960010411B1 (en) 1992-04-24 1992-04-24 Holographic laser scanning unit in lbp

Publications (2)

Publication Number Publication Date
KR930021398A KR930021398A (en) 1993-11-22
KR960010411B1 true KR960010411B1 (en) 1996-07-31

Family

ID=19332279

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92006976A KR960010411B1 (en) 1992-04-24 1992-04-24 Holographic laser scanning unit in lbp

Country Status (3)

Country Link
JP (1) JPH06102465A (en)
KR (1) KR960010411B1 (en)
GB (1) GB2266785B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3862446B2 (en) * 1998-10-02 2006-12-27 キヤノン株式会社 Imaging lens and image reading apparatus using the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200557A (en) * 1981-02-25 1982-09-16 Benson Inc LASER SCANNER.
US4428643A (en) * 1981-04-08 1984-01-31 Xerox Corporation Optical scanning system with wavelength shift correction
JP2532049B2 (en) * 1983-06-30 1996-09-11 富士通株式会社 Optical beam scanning device
CA1320855C (en) * 1985-07-31 1993-08-03 Shin-Ya Hasegawa Laser beam scanner and its fabricating method
US4826268A (en) * 1987-11-25 1989-05-02 Holotek, Ltd. Hologon scanner system

Also Published As

Publication number Publication date
JPH06102465A (en) 1994-04-15
KR930021398A (en) 1993-11-22
GB2266785B (en) 1995-11-22
GB2266785A (en) 1993-11-10
GB9308398D0 (en) 1993-06-09

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee