GB1432893A - Apparatus for evaluating holographic interferograms - Google Patents

Apparatus for evaluating holographic interferograms

Info

Publication number
GB1432893A
GB1432893A GB629074A GB629074A GB1432893A GB 1432893 A GB1432893 A GB 1432893A GB 629074 A GB629074 A GB 629074A GB 629074 A GB629074 A GB 629074A GB 1432893 A GB1432893 A GB 1432893A
Authority
GB
United Kingdom
Prior art keywords
frequency
hologram
state
beams
same
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.)
Expired
Application number
GB629074A
Other languages
English (en)
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1432893A publication Critical patent/GB1432893A/en
Expired 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)
  • Holo Graphy (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB629074A 1973-02-14 1974-02-12 Apparatus for evaluating holographic interferograms Expired GB1432893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH200873A CH556018A (de) 1973-02-14 1973-02-14 Verfahren zur erzeugung und auswertung holographischer interferogramme.

Publications (1)

Publication Number Publication Date
GB1432893A true GB1432893A (en) 1976-04-22

Family

ID=4223744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB629074A Expired GB1432893A (en) 1973-02-14 1974-02-12 Apparatus for evaluating holographic interferograms

Country Status (7)

Country Link
JP (1) JPS5041568A (de)
AT (1) AT341248B (de)
CH (1) CH556018A (de)
DE (1) DE2312203A1 (de)
FR (1) FR2217708B3 (de)
GB (1) GB1432893A (de)
NL (1) NL7401913A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303876A1 (de) * 1983-02-05 1984-08-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Holografisches differenzverfahren
DE3930554A1 (de) * 1989-09-13 1991-03-21 Bosch Gmbh Robert Vorrichtung zur absoluten zweidimensionalen positions-messung

Also Published As

Publication number Publication date
JPS5041568A (de) 1975-04-16
CH556018A (de) 1974-11-15
FR2217708A1 (de) 1974-09-06
DE2312203A1 (de) 1974-08-22
NL7401913A (de) 1974-08-16
ATA986673A (de) 1977-05-15
AT341248B (de) 1978-01-25
FR2217708B3 (de) 1976-11-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee