JPS5565103A - Measuring unit for laser beam diameter - Google Patents

Measuring unit for laser beam diameter

Info

Publication number
JPS5565103A
JPS5565103A JP13884978A JP13884978A JPS5565103A JP S5565103 A JPS5565103 A JP S5565103A JP 13884978 A JP13884978 A JP 13884978A JP 13884978 A JP13884978 A JP 13884978A JP S5565103 A JPS5565103 A JP S5565103A
Authority
JP
Japan
Prior art keywords
laser beam
diameter
output
knife edge
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.)
Pending
Application number
JP13884978A
Other languages
Japanese (ja)
Inventor
Masahito Hodai
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.)
Sanki Denshi Kogyo KK
Original Assignee
Sanki Denshi Kogyo KK
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 Sanki Denshi Kogyo KK filed Critical Sanki Denshi Kogyo KK
Priority to JP13884978A priority Critical patent/JPS5565103A/en
Publication of JPS5565103A publication Critical patent/JPS5565103A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To enable to measure the diameter of laser beam in arbitrary direction automatically, in a short time with high accuracy, without being subject to the effect of the light of external disturbance even in bright room, by using the light shield case, knife edge and photo detector.
CONSTITUTION: Before the tip of the knife edge 11 shuts off the light beam from the measured laser beam incident hole 27, the light shield case 1 is held at a suitable position to adjust the output of the photo detector 12 and of the DC amplifier 16. The output pulse of the pulse generator 25 is fed to the drive circuit 24 with the switch 21 to drive the pulse motor 5 and to advance the support 10 and the knife edge 11 in step. Thus, the section of the measured laser beam is shut off and the diameter of beam is measured by counting the output pulse from the output of the DC amplifier 16 reduced to that perfectly interrupted, to measure the diameter of beam.
COPYRIGHT: (C)1980,JPO&Japio
JP13884978A 1978-11-13 1978-11-13 Measuring unit for laser beam diameter Pending JPS5565103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13884978A JPS5565103A (en) 1978-11-13 1978-11-13 Measuring unit for laser beam diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13884978A JPS5565103A (en) 1978-11-13 1978-11-13 Measuring unit for laser beam diameter

Publications (1)

Publication Number Publication Date
JPS5565103A true JPS5565103A (en) 1980-05-16

Family

ID=15231602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13884978A Pending JPS5565103A (en) 1978-11-13 1978-11-13 Measuring unit for laser beam diameter

Country Status (1)

Country Link
JP (1) JPS5565103A (en)

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