JPS57161502A - Optical measuring device - Google Patents

Optical measuring device

Info

Publication number
JPS57161502A
JPS57161502A JP4828881A JP4828881A JPS57161502A JP S57161502 A JPS57161502 A JP S57161502A JP 4828881 A JP4828881 A JP 4828881A JP 4828881 A JP4828881 A JP 4828881A JP S57161502 A JPS57161502 A JP S57161502A
Authority
JP
Japan
Prior art keywords
light
image
deformation
opened
laser beam
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
JP4828881A
Other languages
Japanese (ja)
Inventor
Kenichi Yoshida
Koji Tada
Miki Kuhara
Kozo Ono
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP4828881A priority Critical patent/JPS57161502A/en
Publication of JPS57161502A publication Critical patent/JPS57161502A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/021—Interferometers using holographic techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Holo Graphy (AREA)

Abstract

PURPOSE:To reduce the size of an optical measuring device which analyzes minor deformations, oscillation modes, etc. by making use of holograms, by transmitting the laser beam from an external light source and the reconstructed image obtained in the device by means of optical fibers. CONSTITUTION:The laser beam from a light source is conducted with a single mode fiber 13, and is expanded by a beam expander 15 to parallel luminous fluxes. One of the rays bisected by a half mirror 3 goes through mirrors 6, 6' to provide reference light 7. The other luminous flux is irradiated to an object 4 and provides object light 5. Shutters 16, 17 are opened, and the double exposed holograms before and after the deformation of the object by the object light and the reference light are recorded in a hologram element 8. Next, when only the shutter 17 is opened, the reconstructed image 9 having the interference fringes corresponding to the rate of deformation is obtained, and is formed on the end face of an image fiber 14 via an optical path changer 18 and an imaging lens 19, whereby said image is transmitted.
JP4828881A 1981-03-30 1981-03-30 Optical measuring device Pending JPS57161502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4828881A JPS57161502A (en) 1981-03-30 1981-03-30 Optical measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4828881A JPS57161502A (en) 1981-03-30 1981-03-30 Optical measuring device

Publications (1)

Publication Number Publication Date
JPS57161502A true JPS57161502A (en) 1982-10-05

Family

ID=12799245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4828881A Pending JPS57161502A (en) 1981-03-30 1981-03-30 Optical measuring device

Country Status (1)

Country Link
JP (1) JPS57161502A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194428A (en) * 1986-02-21 1987-08-26 Fujikura Ltd Temperature detector due to interference type optical fiber sensor
KR20020079615A (en) * 2002-07-03 2002-10-19 김경석 Simplified Light Measurement System for Simultaneous Deformation and Shape Measurement using Fiber-Optic Light Deliverly System

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194428A (en) * 1986-02-21 1987-08-26 Fujikura Ltd Temperature detector due to interference type optical fiber sensor
KR20020079615A (en) * 2002-07-03 2002-10-19 김경석 Simplified Light Measurement System for Simultaneous Deformation and Shape Measurement using Fiber-Optic Light Deliverly System

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