GB1303466A - - Google Patents

Info

Publication number
GB1303466A
GB1303466A GB1303466DA GB1303466A GB 1303466 A GB1303466 A GB 1303466A GB 1303466D A GB1303466D A GB 1303466DA GB 1303466 A GB1303466 A GB 1303466A
Authority
GB
United Kingdom
Prior art keywords
mirror
workpiece
plate
standard
representation
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
Other languages
English (en)
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 filed Critical
Publication of GB1303466A publication Critical patent/GB1303466A/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
    • G01B9/08—Optical projection comparators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Optical Elements Other Than Lenses (AREA)
GB1303466D 1970-11-12 1970-11-12 Expired GB1303466A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5380370 1970-11-12

Publications (1)

Publication Number Publication Date
GB1303466A true GB1303466A (es) 1973-01-17

Family

ID=10469034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1303466D Expired GB1303466A (es) 1970-11-12 1970-11-12

Country Status (7)

Country Link
BR (1) BR7107594D0 (es)
DE (1) DE2156088A1 (es)
ES (1) ES396880A1 (es)
FR (1) FR2114027B1 (es)
GB (1) GB1303466A (es)
IT (1) IT940489B (es)
NL (1) NL7115517A (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005939A (en) * 1975-10-09 1977-02-01 Stavalone Lawrence S Optical comparator for testing printed circuit boards
US4368950A (en) * 1979-12-01 1983-01-18 Dainippon Screen Mfg., Co., Ltd. Image observation device having glass piled half mirror
GB2214145A (en) * 1988-02-22 1989-08-31 Ian Sydney Crawford Rear-view mirror having non-reflective portions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005939A (en) * 1975-10-09 1977-02-01 Stavalone Lawrence S Optical comparator for testing printed circuit boards
US4368950A (en) * 1979-12-01 1983-01-18 Dainippon Screen Mfg., Co., Ltd. Image observation device having glass piled half mirror
GB2214145A (en) * 1988-02-22 1989-08-31 Ian Sydney Crawford Rear-view mirror having non-reflective portions

Also Published As

Publication number Publication date
BR7107594D0 (pt) 1973-03-13
FR2114027A1 (es) 1972-06-30
DE2156088A1 (de) 1972-05-18
NL7115517A (es) 1972-05-16
FR2114027B1 (es) 1973-06-29
ES396880A1 (es) 1974-07-01
IT940489B (it) 1973-02-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees