JPS5546712A - Scanner of laser beam - Google Patents

Scanner of laser beam

Info

Publication number
JPS5546712A
JPS5546712A JP11913778A JP11913778A JPS5546712A JP S5546712 A JPS5546712 A JP S5546712A JP 11913778 A JP11913778 A JP 11913778A JP 11913778 A JP11913778 A JP 11913778A JP S5546712 A JPS5546712 A JP S5546712A
Authority
JP
Japan
Prior art keywords
prism
angle
laser beam
rotating
wedge
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
JP11913778A
Other languages
Japanese (ja)
Inventor
Atsushi Maruyama
Akio Aoki
Hiroyuki Unishi
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP11913778A priority Critical patent/JPS5546712A/en
Publication of JPS5546712A publication Critical patent/JPS5546712A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10603—Basic scanning using moving elements
    • G06K7/10633—Basic scanning using moving elements by oscillation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1016—Motor control or optical moving unit control

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To make possible scanning at minute angles and with good accuracy by using a wedge-form rotating prism of a small vertex angle.
CONSTITUTION: A prism 19 made of wedge-form transparent glass or plastic of a small vertex angle α is mounted to the revolving shaft 21 of a rotating device 20 such as rotary solenoid or motor and is supported by a supporting ram 25 in the state where it is opposed to a laser oscillator 22. Then, when the laser beam oscillated from the laser oscillator 22 enters the prism 19 through a collimator 23 and the prism 19 is reciprocated at a fixed angle, then the laser beam is scanned according to the rotating angle thereof and the minute angles are scanned with high accuracy because the relation between the rotating angle of the prism 19 and the swing angle of the laser beam associates to the vertex angle α of the prism 19.
COPYRIGHT: (C)1980,JPO&Japio
JP11913778A 1978-09-29 1978-09-29 Scanner of laser beam Pending JPS5546712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11913778A JPS5546712A (en) 1978-09-29 1978-09-29 Scanner of laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11913778A JPS5546712A (en) 1978-09-29 1978-09-29 Scanner of laser beam

Publications (1)

Publication Number Publication Date
JPS5546712A true JPS5546712A (en) 1980-04-02

Family

ID=14753842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11913778A Pending JPS5546712A (en) 1978-09-29 1978-09-29 Scanner of laser beam

Country Status (1)

Country Link
JP (1) JPS5546712A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556322A (en) * 1980-04-23 1985-12-03 Pharos Ab Arrangement for checking dimensional accuracy
JPH0251022A (en) * 1988-08-12 1990-02-21 Terumo Corp Method and apparatus for measuring flow rate of fluid
WO2003025620A3 (en) * 2001-08-31 2003-10-09 Adc Automotive Dist Control Sensor device
US6937375B2 (en) 2001-08-31 2005-08-30 Automotive Distance Control Systems Gmbh Scanning device
US7002669B2 (en) 2001-08-09 2006-02-21 Conti Temic Microelectronic Gmbh Device for distance measurement
US7187445B2 (en) 2001-07-19 2007-03-06 Automotive Distance Control Systems Gmbh Method and apparatus for optically scanning a scene

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556322A (en) * 1980-04-23 1985-12-03 Pharos Ab Arrangement for checking dimensional accuracy
JPH0251022A (en) * 1988-08-12 1990-02-21 Terumo Corp Method and apparatus for measuring flow rate of fluid
US7187445B2 (en) 2001-07-19 2007-03-06 Automotive Distance Control Systems Gmbh Method and apparatus for optically scanning a scene
US7002669B2 (en) 2001-08-09 2006-02-21 Conti Temic Microelectronic Gmbh Device for distance measurement
WO2003025620A3 (en) * 2001-08-31 2003-10-09 Adc Automotive Dist Control Sensor device
US6937375B2 (en) 2001-08-31 2005-08-30 Automotive Distance Control Systems Gmbh Scanning device

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