JPS5361356A - Minute angle measuring device - Google Patents

Minute angle measuring device

Info

Publication number
JPS5361356A
JPS5361356A JP13713976A JP13713976A JPS5361356A JP S5361356 A JPS5361356 A JP S5361356A JP 13713976 A JP13713976 A JP 13713976A JP 13713976 A JP13713976 A JP 13713976A JP S5361356 A JPS5361356 A JP S5361356A
Authority
JP
Japan
Prior art keywords
minute angle
measuring device
angle measuring
spots
minute
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
JP13713976A
Other languages
Japanese (ja)
Inventor
Shigeru Arai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13713976A priority Critical patent/JPS5361356A/en
Publication of JPS5361356A publication Critical patent/JPS5361356A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To measure minute angles highly accurately with a simple constitution by applying parallel light rays to faces intersecting at a minute angle, condensing the reflected rays thereof with a convex lens of a long focal length, forming two spots and measuring the distance between the spots.
COPYRIGHT: (C)1978,JPO&Japio
JP13713976A 1976-11-15 1976-11-15 Minute angle measuring device Pending JPS5361356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13713976A JPS5361356A (en) 1976-11-15 1976-11-15 Minute angle measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13713976A JPS5361356A (en) 1976-11-15 1976-11-15 Minute angle measuring device

Publications (1)

Publication Number Publication Date
JPS5361356A true JPS5361356A (en) 1978-06-01

Family

ID=15191722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13713976A Pending JPS5361356A (en) 1976-11-15 1976-11-15 Minute angle measuring device

Country Status (1)

Country Link
JP (1) JPS5361356A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131407A (en) * 1987-08-28 1989-05-24 Spectra Physics Inc Apparatus and method for measuring angle of reflecting cone

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029761A (en) * 1973-05-09 1975-03-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029761A (en) * 1973-05-09 1975-03-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131407A (en) * 1987-08-28 1989-05-24 Spectra Physics Inc Apparatus and method for measuring angle of reflecting cone

Similar Documents

Publication Publication Date Title
JPS51122483A (en) Scanner type inspection device
JPS57157118A (en) Photoelectric type displacement detecting device
JPS5295221A (en) Detector for focusing
JPS533363A (en) Measurement method and measurement device
JPS52104256A (en) Thickness measuring device
JPS52147430A (en) Focus detection device
JPS52152741A (en) Optical displacement detector
JPS5361356A (en) Minute angle measuring device
JPS5413332A (en) Display device of focal point of camera
JPS5440662A (en) Range finder
JPS5585207A (en) Projection location measuring device
JPS5337457A (en) Distance measuring device
JPS51144254A (en) Focal distance measurement method of optical lens and its device
JPS52147449A (en) Optical branching and condensing devices
JPS52110031A (en) Detector for focusing
JPS5327439A (en) Focus measuring device
JPS5435759A (en) Measuring method of numerical aperture of optical fibers
JPS5328336A (en) Optical scanning device
JPS51112336A (en) Flashing device for a close photographing
JPS5379561A (en) Measuring device of spreading angle of laser beam
JPS5337454A (en) Distance measuring device
JPS53143317A (en) System for processing optical information
JPS5425850A (en) Focus detector
JPS5383765A (en) Size measuring system
JPS5425854A (en) Focus detector