JPS56155916A - Photoscanner - Google Patents

Photoscanner

Info

Publication number
JPS56155916A
JPS56155916A JP5982480A JP5982480A JPS56155916A JP S56155916 A JPS56155916 A JP S56155916A JP 5982480 A JP5982480 A JP 5982480A JP 5982480 A JP5982480 A JP 5982480A JP S56155916 A JPS56155916 A JP S56155916A
Authority
JP
Japan
Prior art keywords
rotary mirror
laser beam
galvanomirror
parabolic reflector
projection surface
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.)
Pending
Application number
JP5982480A
Other languages
Japanese (ja)
Inventor
Fumitaka Abe
Tadashi Matsuda
Tomohisa Mikami
Fumio Sakurai
Satoshi Itami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5982480A priority Critical patent/JPS56155916A/en
Publication of JPS56155916A publication Critical patent/JPS56155916A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/125—Details of the optical system between the polygonal mirror and the image plane
    • G02B26/126—Details of the optical system between the polygonal mirror and the image plane including curved mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

PURPOSE:To obtain a linear trace on a projection surface, by varying at least either of the incidence angle and incidence position of a laser beam incident to a rotary mirror by a deflecting means provided in front of the rotary mirror. CONSTITUTION:Galvanomirror 9, provided behind collimator lens systems 3 and 3', is capable of being driven with an electric signal as shown by the arrows, and a laser beam condensed through collimator lens systems 3 and 3' is reflected by this galvanomirror 9 to irradiate rotary mirror 4. Rotary mirror 4 and parabolic reflector 7 drive galvanomirror 4 during one scan of rotary mirror 4. Therefore, the angle of incident perpendicular to the scanning direction of the laser beam at parabolic reflector 7 is variable. Consequently, the laser beam reflected by parabolic reflector 7 has linear 1' to flat projection surface 5.
JP5982480A 1980-05-06 1980-05-06 Photoscanner Pending JPS56155916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5982480A JPS56155916A (en) 1980-05-06 1980-05-06 Photoscanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5982480A JPS56155916A (en) 1980-05-06 1980-05-06 Photoscanner

Publications (1)

Publication Number Publication Date
JPS56155916A true JPS56155916A (en) 1981-12-02

Family

ID=13124356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5982480A Pending JPS56155916A (en) 1980-05-06 1980-05-06 Photoscanner

Country Status (1)

Country Link
JP (1) JPS56155916A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274572A2 (en) * 1987-01-12 1988-07-20 Erwin Sick GmbH Optik-Elektronik Device for the optical scanning of objects, especially record discs
US5004929A (en) * 1988-06-04 1991-04-02 Fujitsu Limited Optical system for detecting three-dimensional shape
NL1002126C2 (en) * 1996-01-19 1997-07-22 Proval Beheer B V Automatic examination of colour and nature of target sample
JPH09251138A (en) * 1996-01-10 1997-09-22 Ricoh Co Ltd Optical scanning device
JP2018066969A (en) * 2016-10-21 2018-04-26 川崎重工業株式会社 Light radiation device and light reading device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274572A2 (en) * 1987-01-12 1988-07-20 Erwin Sick GmbH Optik-Elektronik Device for the optical scanning of objects, especially record discs
US5004929A (en) * 1988-06-04 1991-04-02 Fujitsu Limited Optical system for detecting three-dimensional shape
JPH09251138A (en) * 1996-01-10 1997-09-22 Ricoh Co Ltd Optical scanning device
NL1002126C2 (en) * 1996-01-19 1997-07-22 Proval Beheer B V Automatic examination of colour and nature of target sample
JP2018066969A (en) * 2016-10-21 2018-04-26 川崎重工業株式会社 Light radiation device and light reading device

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