GB1422180A - Interferometric observation of small displacements - Google Patents

Interferometric observation of small displacements

Info

Publication number
GB1422180A
GB1422180A GB2962573A GB2962573A GB1422180A GB 1422180 A GB1422180 A GB 1422180A GB 2962573 A GB2962573 A GB 2962573A GB 2962573 A GB2962573 A GB 2962573A GB 1422180 A GB1422180 A GB 1422180A
Authority
GB
United Kingdom
Prior art keywords
beams
optical
objects
lens
lenses
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
GB2962573A
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite 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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB1422180A publication Critical patent/GB1422180A/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)
  • Length Measuring Devices By Optical Means (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Holo Graphy (AREA)
GB2962573A 1973-04-10 1973-06-21 Interferometric observation of small displacements Expired GB1422180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34989173A 1973-04-10 1973-04-10

Publications (1)

Publication Number Publication Date
GB1422180A true GB1422180A (en) 1976-01-21

Family

ID=23374402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2962573A Expired GB1422180A (en) 1973-04-10 1973-06-21 Interferometric observation of small displacements

Country Status (8)

Country Link
JP (2) JPS49131457A (enrdf_load_stackoverflow)
BE (1) BE801207R (enrdf_load_stackoverflow)
CA (1) CA981899A (enrdf_load_stackoverflow)
CH (1) CH563011A5 (enrdf_load_stackoverflow)
DE (1) DE2341764A1 (enrdf_load_stackoverflow)
GB (1) GB1422180A (enrdf_load_stackoverflow)
IT (1) IT1046260B (enrdf_load_stackoverflow)
NL (1) NL7311772A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239716A (en) * 1989-12-22 1991-07-10 Marks Spencer Plc Assessing surface characteristics

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024167A3 (en) * 1979-08-07 1982-08-04 Rolls-Royce Plc Method and apparatus for speckle pattern interferometric determination of point displacements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239716A (en) * 1989-12-22 1991-07-10 Marks Spencer Plc Assessing surface characteristics
GB2239716B (en) * 1989-12-22 1994-04-27 Marks Spencer Plc Assessment of surface characteristics

Also Published As

Publication number Publication date
IT1046260B (it) 1980-06-30
DE2341764A1 (de) 1974-10-24
CA981899A (en) 1976-01-20
CH563011A5 (enrdf_load_stackoverflow) 1975-06-13
BE801207R (fr) 1973-12-21
JPS49131457A (enrdf_load_stackoverflow) 1974-12-17
JPS5710361B2 (enrdf_load_stackoverflow) 1982-02-26
JPS55146004A (en) 1980-11-14
NL7311772A (enrdf_load_stackoverflow) 1974-10-14

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Legal Events

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