JPS5572806A - Contour display unit - Google Patents

Contour display unit

Info

Publication number
JPS5572806A
JPS5572806A JP14650178A JP14650178A JPS5572806A JP S5572806 A JPS5572806 A JP S5572806A JP 14650178 A JP14650178 A JP 14650178A JP 14650178 A JP14650178 A JP 14650178A JP S5572806 A JPS5572806 A JP S5572806A
Authority
JP
Japan
Prior art keywords
image
stripes
observed
display unit
contour display
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
JP14650178A
Other languages
Japanese (ja)
Other versions
JPS6138401B2 (en
Inventor
Yoshisada Oshida
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 JP14650178A priority Critical patent/JPS5572806A/en
Publication of JPS5572806A publication Critical patent/JPS5572806A/en
Publication of JPS6138401B2 publication Critical patent/JPS6138401B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To make it possible to display a moire contour line with deep depth by projecting constant stripes on a body surface without reference to its height.
CONSTITUTION: Light beam 3 from light source 1 strikes splitter 2 by way of an optical system; one beam led directly and the other having passed through mirror 12 are projected on body 4 overlapping. In accordance with the unevenness state of the surface of body 4 and incident angle θ of irradiation beam, interference stripes 5 are image-formed on surface 7 by image lens 6. On surface 7, grating 8 is arranged and through this, a body image formed on surface 7 is observed, so that moire contour stripes 16 corresponding to the nuevenness state of the body can be observed in image 15 of the body.
COPYRIGHT: (C)1980,JPO&Japio
JP14650178A 1978-11-29 1978-11-29 Contour display unit Granted JPS5572806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14650178A JPS5572806A (en) 1978-11-29 1978-11-29 Contour display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14650178A JPS5572806A (en) 1978-11-29 1978-11-29 Contour display unit

Publications (2)

Publication Number Publication Date
JPS5572806A true JPS5572806A (en) 1980-06-02
JPS6138401B2 JPS6138401B2 (en) 1986-08-29

Family

ID=15409046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14650178A Granted JPS5572806A (en) 1978-11-29 1978-11-29 Contour display unit

Country Status (1)

Country Link
JP (1) JPS5572806A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002090261A (en) * 2000-09-13 2002-03-27 Hitachi Chem Co Ltd Measuring method for moire fringes, manufacturing method for film and recording medium for storing program for measurement of moire fringes
JP2006058092A (en) * 2004-08-18 2006-03-02 Fuji Xerox Co Ltd Three-dimensional shape measuring device and method
JP2016535278A (en) * 2013-09-10 2016-11-10 ビ−エイイ− システムズ パブリック リミテッド カンパニ−ＢＡＥ ＳＹＳＴＥＭＳ ｐｌｃ Optical surface roughness measurement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002090261A (en) * 2000-09-13 2002-03-27 Hitachi Chem Co Ltd Measuring method for moire fringes, manufacturing method for film and recording medium for storing program for measurement of moire fringes
JP2006058092A (en) * 2004-08-18 2006-03-02 Fuji Xerox Co Ltd Three-dimensional shape measuring device and method
JP2016535278A (en) * 2013-09-10 2016-11-10 ビ−エイイ− システムズ パブリック リミテッド カンパニ−ＢＡＥ ＳＹＳＴＥＭＳ ｐｌｃ Optical surface roughness measurement
US9976850B2 (en) 2013-09-10 2018-05-22 Bae Systems Plc Optical surface roughness measurement

Also Published As

Publication number Publication date
JPS6138401B2 (en) 1986-08-29

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