FR2340534A1 - Lens centering apparatus for edge trimming - uses reflected and transmitted beams as lens is rotated and positionally adjusted - Google Patents

Lens centering apparatus for edge trimming - uses reflected and transmitted beams as lens is rotated and positionally adjusted

Info

Publication number
FR2340534A1
FR2340534A1 FR7603410A FR7603410A FR2340534A1 FR 2340534 A1 FR2340534 A1 FR 2340534A1 FR 7603410 A FR7603410 A FR 7603410A FR 7603410 A FR7603410 A FR 7603410A FR 2340534 A1 FR2340534 A1 FR 2340534A1
Authority
FR
France
Prior art keywords
lens
variations
rotated
edge trimming
inclination
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.)
Withdrawn
Application number
FR7603410A
Other languages
French (fr)
Inventor
Jean Paul Marioge
Guy Jaunet
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.)
Centre Technique des Industries Mecaniques CETIM
Original Assignee
Centre Technique des Industries Mecaniques CETIM
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 Centre Technique des Industries Mecaniques CETIM filed Critical Centre Technique des Industries Mecaniques CETIM
Priority to FR7603410A priority Critical patent/FR2340534A1/en
Publication of FR2340534A1 publication Critical patent/FR2340534A1/en
Withdrawn legal-status Critical Current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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The method for ceutercus lenses has a lens rotating about a centering axis. A beam reflected by the first face of the lens is detected and its variations in inclination are determined. A beam transmitted through the lens from an incident beam directed along the centering axis and focussed at the optical centre of the lens is detected and its variations in inclination are determined. The position of the lens is adjusted at, these variations are both annulled. The associated apparatus comprises a rotational system (2) which supports the lens (1) a system for examining the reflected light (30, 31) and a system (20) for examining the transmitted light. Another system (14) enables the lens to be displaced either manually or automatically in order to annual the inclination variations.
FR7603410A 1976-02-09 1976-02-09 Lens centering apparatus for edge trimming - uses reflected and transmitted beams as lens is rotated and positionally adjusted Withdrawn FR2340534A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7603410A FR2340534A1 (en) 1976-02-09 1976-02-09 Lens centering apparatus for edge trimming - uses reflected and transmitted beams as lens is rotated and positionally adjusted

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7603410A FR2340534A1 (en) 1976-02-09 1976-02-09 Lens centering apparatus for edge trimming - uses reflected and transmitted beams as lens is rotated and positionally adjusted

Publications (1)

Publication Number Publication Date
FR2340534A1 true FR2340534A1 (en) 1977-09-02

Family

ID=9168872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603410A Withdrawn FR2340534A1 (en) 1976-02-09 1976-02-09 Lens centering apparatus for edge trimming - uses reflected and transmitted beams as lens is rotated and positionally adjusted

Country Status (1)

Country Link
FR (1) FR2340534A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503416A1 (en) * 1981-04-03 1982-10-08 Philips Nv DEVICE FOR DETECTING THE POSITION OF AN OBJECT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503416A1 (en) * 1981-04-03 1982-10-08 Philips Nv DEVICE FOR DETECTING THE POSITION OF AN OBJECT

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Legal Events

Date Code Title Description
ST Notification of lapse