GB2289943B - Improvements in or relating to apparatus for the measurement of curvature of a surface - Google Patents

Improvements in or relating to apparatus for the measurement of curvature of a surface

Info

Publication number
GB2289943B
GB2289943B GB9510524A GB9510524A GB2289943B GB 2289943 B GB2289943 B GB 2289943B GB 9510524 A GB9510524 A GB 9510524A GB 9510524 A GB9510524 A GB 9510524A GB 2289943 B GB2289943 B GB 2289943B
Authority
GB
United Kingdom
Prior art keywords
curvature
relating
measurement
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 - Fee Related
Application number
GB9510524A
Other versions
GB9510524D0 (en
GB2289943A (en
Inventor
Kevin Ross Manning
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research Ltd
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
Priority claimed from GB9410792A external-priority patent/GB9410792D0/en
Priority claimed from GB9411121A external-priority patent/GB9411121D0/en
Application filed by Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Priority to GB9510524A priority Critical patent/GB2289943B/en
Publication of GB9510524D0 publication Critical patent/GB9510524D0/en
Publication of GB2289943A publication Critical patent/GB2289943A/en
Application granted granted Critical
Publication of GB2289943B publication Critical patent/GB2289943B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04—Sorting according to size
    • B07C5/10—Sorting according to size measured by light-responsive means
    • 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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/255—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB9510524A 1994-05-28 1995-05-24 Improvements in or relating to apparatus for the measurement of curvature of a surface Expired - Fee Related GB2289943B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9510524A GB2289943B (en) 1994-05-28 1995-05-24 Improvements in or relating to apparatus for the measurement of curvature of a surface

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9410792A GB9410792D0 (en) 1994-05-28 1994-05-28 Improvements in or relating to lens measurement
GB9411121A GB9411121D0 (en) 1994-06-03 1994-06-03 Improvements in or relating to apparatus for the measurement of curvature of a surface
GB9510524A GB2289943B (en) 1994-05-28 1995-05-24 Improvements in or relating to apparatus for the measurement of curvature of a surface

Publications (3)

Publication Number Publication Date
GB9510524D0 GB9510524D0 (en) 1995-07-19
GB2289943A GB2289943A (en) 1995-12-06
GB2289943B true GB2289943B (en) 1998-05-13

Family

ID=27267202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9510524A Expired - Fee Related GB2289943B (en) 1994-05-28 1995-05-24 Improvements in or relating to apparatus for the measurement of curvature of a surface

Country Status (1)

Country Link
GB (1) GB2289943B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317768A1 (en) * 1987-11-25 1989-05-31 Taunton Technologies, Inc. Topography measuring apparatus
US5067817A (en) * 1990-02-08 1991-11-26 Bauer Associates, Inc. Method and device for noncontacting self-referencing measurement of surface curvature and profile
GB2265215A (en) * 1992-03-14 1993-09-22 Roke Manor Research Optical apparatus for measuring surface curvature

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317768A1 (en) * 1987-11-25 1989-05-31 Taunton Technologies, Inc. Topography measuring apparatus
US5067817A (en) * 1990-02-08 1991-11-26 Bauer Associates, Inc. Method and device for noncontacting self-referencing measurement of surface curvature and profile
GB2265215A (en) * 1992-03-14 1993-09-22 Roke Manor Research Optical apparatus for measuring surface curvature

Also Published As

Publication number Publication date
GB9510524D0 (en) 1995-07-19
GB2289943A (en) 1995-12-06

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Legal Events

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

Effective date: 20030524