ATE61105T1 - Messinstrument. - Google Patents

Messinstrument.

Info

Publication number
ATE61105T1
ATE61105T1 AT86308257T AT86308257T ATE61105T1 AT E61105 T1 ATE61105 T1 AT E61105T1 AT 86308257 T AT86308257 T AT 86308257T AT 86308257 T AT86308257 T AT 86308257T AT E61105 T1 ATE61105 T1 AT E61105T1
Authority
AT
Austria
Prior art keywords
etalon
wedge
path difference
optical path
directing
Prior art date
Application number
AT86308257T
Other languages
English (en)
Inventor
James Henry Hatfield
Original Assignee
Ici Plc
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 Ici Plc filed Critical Ici Plc
Application granted granted Critical
Publication of ATE61105T1 publication Critical patent/ATE61105T1/de

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
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Error Detection And Correction (AREA)
AT86308257T 1985-11-05 1986-10-23 Messinstrument. ATE61105T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858527235A GB8527235D0 (en) 1985-11-05 1985-11-05 Measuring instrument
EP86308257A EP0227253B1 (de) 1985-11-05 1986-10-23 Messinstrument

Publications (1)

Publication Number Publication Date
ATE61105T1 true ATE61105T1 (de) 1991-03-15

Family

ID=10587745

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86308257T ATE61105T1 (de) 1985-11-05 1986-10-23 Messinstrument.

Country Status (12)

Country Link
US (1) US4768182A (de)
EP (1) EP0227253B1 (de)
JP (1) JPS62175605A (de)
KR (1) KR870005357A (de)
AT (1) ATE61105T1 (de)
AU (1) AU590019B2 (de)
BR (1) BR8605438A (de)
CA (1) CA1270679A (de)
DE (1) DE3677737D1 (de)
ES (1) ES2020510B3 (de)
GB (2) GB8527235D0 (de)
NZ (1) NZ218102A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850696A (en) * 1987-03-27 1989-07-25 Toyo Glass Company Limited Vacuum degree inspecting device for sealed up vessel
US5162872A (en) * 1991-07-02 1992-11-10 The United States Of America As Represented The Secretary Of The Air Force Tilt/shear immune tunable fabry-perot interferometer
JPH0855358A (ja) * 1994-08-11 1996-02-27 Pioneer Video Corp 光学的記録装置
RU2152588C1 (ru) * 1998-05-22 2000-07-10 НИИ Российский центр лазерной физики при Санкт-Петербургском государственном университете Способ измерения оптической толщины плоскопараллельных прозрачных объектов
US6791694B2 (en) * 2001-01-16 2004-09-14 Santur Corporation Tunable optical device using a scanning MEMS mirror
CN1253871C (zh) * 2001-06-29 2006-04-26 松下电器产业株式会社 光盘原盘曝光装置和光盘原盘曝光方法以及针孔机构
GB0425419D0 (en) * 2004-11-18 2004-12-22 Sira Ltd Interference apparatus and method and probe
US8797548B2 (en) * 2011-02-18 2014-08-05 Baker Hughes Incorporated Wide dynamic range interferometric transducer with divergent beam
JP6185864B2 (ja) * 2013-06-07 2017-08-23 本田技研工業株式会社 積分球
US9513145B2 (en) 2013-10-29 2016-12-06 Baker Hughes Incorporated Apparatus to reduce pressure and thermal sensitivity of high precision optical displacement sensors
US10024650B2 (en) * 2014-08-12 2018-07-17 Adom, Advanced Optical Technologies Ltd. System for analyzing optical properties of an object
CN115298536B (zh) * 2021-08-25 2025-09-26 深圳市流数科技有限公司 一种折光仪、探测装置和探测折射率的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB655655A (en) * 1948-01-07 1951-07-25 British Celanese Optical systems for measuring the thickness of transparent sheet materials
US2655073A (en) * 1950-09-23 1953-10-13 Celanese Corp Optical thickness gauge
US4225240A (en) * 1978-06-05 1980-09-30 Balasubramanian N Method and system for determining interferometric optical path length difference
JPS56126704A (en) * 1980-02-08 1981-10-05 Rca Corp Thickness monitoring device for thin film
US4355903A (en) * 1980-02-08 1982-10-26 Rca Corporation Thin film thickness monitor
US4558952A (en) * 1983-02-22 1985-12-17 Kules Vladimir P Method for measuring an optical length of light path and a laser interferometer for carrying same into effect
NL8303564A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.

Also Published As

Publication number Publication date
EP0227253B1 (de) 1991-02-27
US4768182A (en) 1988-08-30
DE3677737D1 (de) 1991-04-04
GB8527235D0 (en) 1985-12-11
GB8625411D0 (en) 1986-11-26
ES2020510B3 (es) 1991-08-16
JPS62175605A (ja) 1987-08-01
BR8605438A (pt) 1987-08-11
EP0227253A1 (de) 1987-07-01
AU590019B2 (en) 1989-10-26
NZ218102A (en) 1989-03-29
CA1270679A (en) 1990-06-26
AU6454086A (en) 1987-05-07
KR870005357A (ko) 1987-06-08

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee