JPS5670429A - Measuring device for laser beam - Google Patents

Measuring device for laser beam

Info

Publication number
JPS5670429A
JPS5670429A JP14740979A JP14740979A JPS5670429A JP S5670429 A JPS5670429 A JP S5670429A JP 14740979 A JP14740979 A JP 14740979A JP 14740979 A JP14740979 A JP 14740979A JP S5670429 A JPS5670429 A JP S5670429A
Authority
JP
Japan
Prior art keywords
pin hole
laser beam
recorder
turned
voltage
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
JP14740979A
Other languages
Japanese (ja)
Inventor
Norio Takahashi
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 JP14740979A priority Critical patent/JPS5670429A/en
Publication of JPS5670429A publication Critical patent/JPS5670429A/en
Pending 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)
  • Measurement Of Radiation (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To enable simple and direct measurement of the shape of the laser beam by transferring a pin hole at a right angle to the laser beam and receiving the output of the passed laser beam by a photodetector. CONSTITUTION:The incident beam 1 is limited to a part of the cross section of the beam by the pin hole fitted to a movable mechanism plate 8 and enters the photodetector 3, while the output thereof is given to an amplifier 5 as the voltage of load resistance 4 between both ends and further is inputted in the Y axis of an X-Y recorder 6. When a transverse transfer dial 10 is turned for moving the plate 8, the sliding part (c) of a transfer amount detecting resistance 11 is turned and thereby the voltage between (a) and (c). This voltage between (a) and (c) is given to the X axis of the recorder 6. When the dial 10 is turned, a gear 9 is rotated and the plate 8 moves perpendicularly to the beam 1, moving the pin hole 2 as well. Next, by moving a dial gage 7, the transfer amount is measured. By calibration of the transfer amount of the pin hole 2 and the amount of deflection of the X axis of the recorder, the distribution of strength of the beam is obtained.
JP14740979A 1979-11-14 1979-11-14 Measuring device for laser beam Pending JPS5670429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14740979A JPS5670429A (en) 1979-11-14 1979-11-14 Measuring device for laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14740979A JPS5670429A (en) 1979-11-14 1979-11-14 Measuring device for laser beam

Publications (1)

Publication Number Publication Date
JPS5670429A true JPS5670429A (en) 1981-06-12

Family

ID=15429638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14740979A Pending JPS5670429A (en) 1979-11-14 1979-11-14 Measuring device for laser beam

Country Status (1)

Country Link
JP (1) JPS5670429A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011085A1 (en) * 1988-04-18 1989-11-16 3D Systems, Inc. Stereolithographic beam profiling
US5495328A (en) * 1988-04-18 1996-02-27 3D Systems, Inc. Apparatus and method for calibrating and normalizing a stereolithographic apparatus
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
EP0860267A2 (en) * 1988-04-18 1998-08-26 3D Systems, Inc. Stereolithographic beam profiling

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011085A1 (en) * 1988-04-18 1989-11-16 3D Systems, Inc. Stereolithographic beam profiling
US5495328A (en) * 1988-04-18 1996-02-27 3D Systems, Inc. Apparatus and method for calibrating and normalizing a stereolithographic apparatus
EP0860267A2 (en) * 1988-04-18 1998-08-26 3D Systems, Inc. Stereolithographic beam profiling
EP0860267A3 (en) * 1988-04-18 1999-01-20 3D Systems, Inc. Stereolithographic beam profiling
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

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