JPS5379561A - Measuring device of spreading angle of laser beam - Google Patents

Measuring device of spreading angle of laser beam

Info

Publication number
JPS5379561A
JPS5379561A JP15488676A JP15488676A JPS5379561A JP S5379561 A JPS5379561 A JP S5379561A JP 15488676 A JP15488676 A JP 15488676A JP 15488676 A JP15488676 A JP 15488676A JP S5379561 A JPS5379561 A JP S5379561A
Authority
JP
Japan
Prior art keywords
laser beam
spreading angle
measuring device
spreading
angle
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
JP15488676A
Other languages
Japanese (ja)
Other versions
JPS5933209B2 (en
Inventor
Yasuji Suzaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15488676A priority Critical patent/JPS5933209B2/en
Publication of JPS5379561A publication Critical patent/JPS5379561A/en
Publication of JPS5933209B2 publication Critical patent/JPS5933209B2/en
Expired legal-status Critical Current

Links

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  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE: To make possible easy and accurate measurement of the spreading angle of a laser beam by using a lens of a known focal length, a knife edge, an output meter, etc.
COPYRIGHT: (C)1978,JPO&Japio
JP15488676A 1976-12-24 1976-12-24 Laser beam divergence angle measuring device Expired JPS5933209B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15488676A JPS5933209B2 (en) 1976-12-24 1976-12-24 Laser beam divergence angle measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15488676A JPS5933209B2 (en) 1976-12-24 1976-12-24 Laser beam divergence angle measuring device

Publications (2)

Publication Number Publication Date
JPS5379561A true JPS5379561A (en) 1978-07-14
JPS5933209B2 JPS5933209B2 (en) 1984-08-14

Family

ID=15594096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15488676A Expired JPS5933209B2 (en) 1976-12-24 1976-12-24 Laser beam divergence angle measuring device

Country Status (1)

Country Link
JP (1) JPS5933209B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0539607Y2 (en) * 1988-03-04 1993-10-07

Also Published As

Publication number Publication date
JPS5933209B2 (en) 1984-08-14

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