JPS5646433A - Measuring device of laser beam diameter - Google Patents

Measuring device of laser beam diameter

Info

Publication number
JPS5646433A
JPS5646433A JP12286679A JP12286679A JPS5646433A JP S5646433 A JPS5646433 A JP S5646433A JP 12286679 A JP12286679 A JP 12286679A JP 12286679 A JP12286679 A JP 12286679A JP S5646433 A JPS5646433 A JP S5646433A
Authority
JP
Japan
Prior art keywords
laser beam
grid
board
measured
reflected light
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
JP12286679A
Other languages
Japanese (ja)
Other versions
JPS6239365B2 (en
Inventor
Keiichi Kubota
Shigeto Sugama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12286679A priority Critical patent/JPS5646433A/en
Publication of JPS5646433A publication Critical patent/JPS5646433A/en
Publication of JPS6239365B2 publication Critical patent/JPS6239365B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4257—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To obtain easily the laser beam diameter on the laser beam scanning surface, by putting the laser beam to be measured into the mobile reflecting plate having the prescribed grid pattern and then detecting the volume of the reflected light. CONSTITUTION:The mobile board 21 is attached to the support board 20 having an aperture part, and the grid 22 having a pitch larger enough than the diameter of the laser beam is held on the board 21. The beam 6 to be measured is incident to the grid 22 through the aperture part of the support frame 20, and the reflected light is detected by the photodetector 23 attached obliquely at the aperture part of the frame 20. In case this measuring device is used in the scanning optical system, the grid 22 is pressed to the cylinder roller 25 for measurement. The board 21 can be shifted in a minute amount by the sending screw 24. In this instant, the maximum and minimum values of the reflected light volume plus the light volume in case the entire surface of the grid is the transmission part are measured to obtain the beam diameter in an easy way.
JP12286679A 1979-09-25 1979-09-25 Measuring device of laser beam diameter Granted JPS5646433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12286679A JPS5646433A (en) 1979-09-25 1979-09-25 Measuring device of laser beam diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12286679A JPS5646433A (en) 1979-09-25 1979-09-25 Measuring device of laser beam diameter

Publications (2)

Publication Number Publication Date
JPS5646433A true JPS5646433A (en) 1981-04-27
JPS6239365B2 JPS6239365B2 (en) 1987-08-22

Family

ID=14846565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12286679A Granted JPS5646433A (en) 1979-09-25 1979-09-25 Measuring device of laser beam diameter

Country Status (1)

Country Link
JP (1) JPS5646433A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142229A (en) * 1982-02-19 1983-08-24 Hitachi Ltd Measuring method of laser beam
JPS6319134A (en) * 1986-07-11 1988-01-26 工業技術院長 Method and apparatus for stimulating nerve or irritable tissue
US4861164A (en) * 1986-09-05 1989-08-29 Sira Limited Apparatus for separating specular from diffuse radiation
JPH01288274A (en) * 1988-05-16 1989-11-20 Tokyo Electric Co Ltd Low frequency remedying device
US5499094A (en) * 1994-12-21 1996-03-12 Eastman Kodak Company Apparatus and method for measuring the length and width of a spot of light utilizing two different masks
US5587786A (en) * 1995-02-23 1996-12-24 Universite Laval Apparatus for measuring a beam width D.sub.σx along a transverse direction of a laser beam and method thereof
US10667949B2 (en) 2015-10-21 2020-06-02 Amo Development, Llc Laser beam calibration and beam quality measurement in laser surgery systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142229A (en) * 1982-02-19 1983-08-24 Hitachi Ltd Measuring method of laser beam
JPS6319134A (en) * 1986-07-11 1988-01-26 工業技術院長 Method and apparatus for stimulating nerve or irritable tissue
JPH0347101B2 (en) * 1986-07-11 1991-07-18 Kogyo Gijutsuin
US4861164A (en) * 1986-09-05 1989-08-29 Sira Limited Apparatus for separating specular from diffuse radiation
JPH01288274A (en) * 1988-05-16 1989-11-20 Tokyo Electric Co Ltd Low frequency remedying device
JPH0657261B2 (en) * 1988-05-16 1994-08-03 東京電気株式会社 Low frequency therapy device
US5499094A (en) * 1994-12-21 1996-03-12 Eastman Kodak Company Apparatus and method for measuring the length and width of a spot of light utilizing two different masks
US5587786A (en) * 1995-02-23 1996-12-24 Universite Laval Apparatus for measuring a beam width D.sub.σx along a transverse direction of a laser beam and method thereof
US10667949B2 (en) 2015-10-21 2020-06-02 Amo Development, Llc Laser beam calibration and beam quality measurement in laser surgery systems
US11896526B2 (en) 2015-10-21 2024-02-13 Amo Development, Llc Laser beam calibration and beam quality measurement in laser surgery systems

Also Published As

Publication number Publication date
JPS6239365B2 (en) 1987-08-22

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