GB2321309B - Thickness measuring apparatus - Google Patents

Thickness measuring apparatus

Info

Publication number
GB2321309B
GB2321309B GB9703761A GB9703761A GB2321309B GB 2321309 B GB2321309 B GB 2321309B GB 9703761 A GB9703761 A GB 9703761A GB 9703761 A GB9703761 A GB 9703761A GB 2321309 B GB2321309 B GB 2321309B
Authority
GB
United Kingdom
Prior art keywords
measuring apparatus
thickness measuring
thickness
measuring
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 - Lifetime
Application number
GB9703761A
Other versions
GB2321309A (en
GB9703761D0 (en
Inventor
Neil Colin Hamilton
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9703761D0 publication Critical patent/GB9703761D0/en
Priority to EP98900571A priority Critical patent/EP0961915B1/en
Priority to PCT/GB1998/000075 priority patent/WO1998031984A1/en
Priority to DE69829041T priority patent/DE69829041T2/en
Priority to AT98900571T priority patent/ATE289406T1/en
Priority to AU55670/98A priority patent/AU5567098A/en
Publication of GB2321309A publication Critical patent/GB2321309A/en
Application granted granted Critical
Publication of GB2321309B publication Critical patent/GB2321309B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
GB9703761A 1997-01-21 1997-02-24 Thickness measuring apparatus Expired - Lifetime GB2321309B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP98900571A EP0961915B1 (en) 1997-01-21 1998-01-09 Thickness measuring apparatus
PCT/GB1998/000075 WO1998031984A1 (en) 1997-01-21 1998-01-09 Thickness measuring apparatus
DE69829041T DE69829041T2 (en) 1997-01-21 1998-01-09 DICK MEASUREMENT APPARATUS
AT98900571T ATE289406T1 (en) 1997-01-21 1998-01-09 THICKNESS MEASURING APPARATUS
AU55670/98A AU5567098A (en) 1997-01-21 1998-01-09 Thickness measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9701177.9A GB9701177D0 (en) 1997-01-21 1997-01-21 Thickness measuring apparatus

Publications (3)

Publication Number Publication Date
GB9703761D0 GB9703761D0 (en) 1997-04-16
GB2321309A GB2321309A (en) 1998-07-22
GB2321309B true GB2321309B (en) 1999-08-04

Family

ID=10806332

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9701177.9A Pending GB9701177D0 (en) 1997-01-21 1997-01-21 Thickness measuring apparatus
GB9703761A Expired - Lifetime GB2321309B (en) 1997-01-21 1997-02-24 Thickness measuring apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9701177.9A Pending GB9701177D0 (en) 1997-01-21 1997-01-21 Thickness measuring apparatus

Country Status (1)

Country Link
GB (2) GB9701177D0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7583368B1 (en) 2006-04-05 2009-09-01 Electronic Design To Market, Inc. Method of enhancing measurement of stress in glass
US7652760B1 (en) 2006-04-05 2010-01-26 Electronic Design To Market, Inc. System for detecting coatings on transparent or semi-transparent materials

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6683695B1 (en) 1999-07-21 2004-01-27 Electronic Design To Market, Inc. Method and apparatus for detecting properties of reflective transparent surface coatings on a sheet of transparent material
US7417749B1 (en) 2004-09-01 2008-08-26 Electric Design To Market, Inc. Method and apparatus for protecting an optical transmission measurement when sensing transparent materials

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1329240A (en) * 1969-11-11 1973-09-05 British Aircraft Corp Ltd Optical measurement of the thickness of translucent objects
GB1581948A (en) * 1976-04-19 1980-12-31 Kaye M Optical measurement system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1329240A (en) * 1969-11-11 1973-09-05 British Aircraft Corp Ltd Optical measurement of the thickness of translucent objects
GB1581948A (en) * 1976-04-19 1980-12-31 Kaye M Optical measurement system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7583368B1 (en) 2006-04-05 2009-09-01 Electronic Design To Market, Inc. Method of enhancing measurement of stress in glass
US7652760B1 (en) 2006-04-05 2010-01-26 Electronic Design To Market, Inc. System for detecting coatings on transparent or semi-transparent materials

Also Published As

Publication number Publication date
GB2321309A (en) 1998-07-22
GB9701177D0 (en) 1997-03-12
GB9703761D0 (en) 1997-04-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20170223