JPS56140315A - Laser scanner - Google Patents

Laser scanner

Info

Publication number
JPS56140315A
JPS56140315A JP4395880A JP4395880A JPS56140315A JP S56140315 A JPS56140315 A JP S56140315A JP 4395880 A JP4395880 A JP 4395880A JP 4395880 A JP4395880 A JP 4395880A JP S56140315 A JPS56140315 A JP S56140315A
Authority
JP
Japan
Prior art keywords
laser beam
recording
refractive index
thickness
supporting body
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
Application number
JP4395880A
Other languages
Japanese (ja)
Other versions
JPH0258605B2 (en
Inventor
Isao Sato
Yukio Sakai
Fumio Yamazaki
Michinori Nagahiro
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4395880A priority Critical patent/JPS56140315A/en
Publication of JPS56140315A publication Critical patent/JPS56140315A/en
Publication of JPH0258605B2 publication Critical patent/JPH0258605B2/ja
Granted legal-status Critical Current

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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To provide a scanning optical path change-over means and solve problems such as the power loss, aberration and other of the laser beam during recording by providing a transparent parallel face plate having the thickness equal to the supporting body of an information carrying body and the same refractive index, between an information recording part and a scanning optical system. CONSTITUTION:In the case of making recording, a laser beam 2 is intensified and modulated by a light modulator 3, is expanded of the beam diameter by a collimating lens 5, and is converted to a laser beam 6, which is then reflected by a rotary polyhedral mirror 7 running at a high speed, and is condensed onto the photosensitive drum 11 of the recording part, whereby it is linearly scanned. A scanning laser beam 12 is changed over to a recording scanning laser beam 14 and a reading scanning laser beam 15 by the vertical movement of a total reflection mirror 13. Since the thickness and refractive index of a transparent parallel flat face plate 19 are selected equal to the thickness and refractive index of an original supporting body 16, the spherical aberrations accompanied by the change in the incident angle of a transparent original supporting body 16 are made equal in the recording part and the reading part.
JP4395880A 1980-04-02 1980-04-02 Laser scanner Granted JPS56140315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4395880A JPS56140315A (en) 1980-04-02 1980-04-02 Laser scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4395880A JPS56140315A (en) 1980-04-02 1980-04-02 Laser scanner

Publications (2)

Publication Number Publication Date
JPS56140315A true JPS56140315A (en) 1981-11-02
JPH0258605B2 JPH0258605B2 (en) 1990-12-10

Family

ID=12678207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4395880A Granted JPS56140315A (en) 1980-04-02 1980-04-02 Laser scanner

Country Status (1)

Country Link
JP (1) JPS56140315A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186821A (en) * 1984-02-08 1985-09-24 ライノタイプ・ゲゼルシャフト・ミット・ベシュレンクタ−・ハフツング Scanner for optically flat bed
US6377360B1 (en) 1996-11-19 2002-04-23 Brother Kogyo Kabushiki Kaisha Copier
US6608921B1 (en) 1998-08-21 2003-08-19 Nec Electronics Corporation Inspection of solder bump lighted with rays of light intersecting at predetermined angle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60186821A (en) * 1984-02-08 1985-09-24 ライノタイプ・ゲゼルシャフト・ミット・ベシュレンクタ−・ハフツング Scanner for optically flat bed
US6377360B1 (en) 1996-11-19 2002-04-23 Brother Kogyo Kabushiki Kaisha Copier
US6608921B1 (en) 1998-08-21 2003-08-19 Nec Electronics Corporation Inspection of solder bump lighted with rays of light intersecting at predetermined angle

Also Published As

Publication number Publication date
JPH0258605B2 (en) 1990-12-10

Similar Documents

Publication Publication Date Title
EP0156141B1 (en) Prism optics and optical information processing apparatus
KR0127482B1 (en) Optical scanning device, mirror objective suitable for use therei and an optical recording and/or reproducing apparatus provided-therwith
JPH0721874B2 (en) Read / write head
GB1198655A (en) Entrant Beam Optical Scanner.
FR2597249B1 (en) OPTICAL READING DEVICE FOR OPTICAL RECORDING MEDIUM
FR2646245B1 (en) OPTICAL READING DEVICE FOR OPTICAL RECORDING MEDIUM
US5011245A (en) Radiation scanning apparatus
EP0135047A1 (en) A method of producing a hologram lens
JPS56140315A (en) Laser scanner
CA1182914A (en) System for making a light beam scan a flat carrier with autofocusing
JPS5479644A (en) Scanning optical system
EP0908879A3 (en) Optical information storage apparatus
JPS6486337A (en) Hologram
EP0390116A3 (en) Optical information processing system
JPS56101121A (en) Photoscanner
CN217280037U (en) Holographic storage device
SU1642424A1 (en) Monochromatic objective for recording information
KR100248038B1 (en) Optical pickup device
JPS6411222A (en) Image recorder
JPS61223704A (en) Formation of hologram lens
SU1653001A1 (en) Focusing sensor for optical data reproduction systems
JPS6479944A (en) Optical pickup device
JPS57100636A (en) Optical information reader
JPS6410433A (en) Optical information reader
JPS56159848A (en) Optical recording and reproducing device