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FR2456304A1 - Contour distance measurement for ophthalmic lens - employs probe acting template to indicate mounting bevel position - Google Patents

Contour distance measurement for ophthalmic lens - employs probe acting template to indicate mounting bevel position

Info

Publication number
FR2456304A1
FR2456304A1 FR7911413A FR7911413A FR2456304A1 FR 2456304 A1 FR2456304 A1 FR 2456304A1 FR 7911413 A FR7911413 A FR 7911413A FR 7911413 A FR7911413 A FR 7911413A FR 2456304 A1 FR2456304 A1 FR 2456304A1
Authority
FR
France
Prior art keywords
template
distance measurement
ophthalmic lens
lens
bevel position
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.)
Granted
Application number
FR7911413A
Other languages
French (fr)
Other versions
FR2456304B1 (en
Inventor
Jean-Marie Godot
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.)
EssilorLuxottica SA
Original Assignee
Essilor International Compagnie Generale dOptique 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 Essilor International Compagnie Generale dOptique SA filed Critical Essilor International Compagnie Generale dOptique SA
Priority to FR7911413A priority Critical patent/FR2456304A1/en
Publication of FR2456304A1 publication Critical patent/FR2456304A1/en
Application granted granted Critical
Publication of FR2456304B1 publication Critical patent/FR2456304B1/fr
Granted 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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • B24B47/225—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation for bevelling optical work, e.g. lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Eyeglasses (AREA)

Abstract

On an lens, the distance is measured between a predetermined point on the contour and the plane tangential to the pole of the convex surface. The measurement is required to position the on the rim for mounting in a frame. A vertical pillar (11) on a base plate supports a horizontal element (13) with elements (14,15) which support a lens (L) and template (G). A second horizontal element on a second pillar supports a pivoting arm (17) which carries a probe assembly (18). This comprises a shaft (19) which extends parallel to the axis of the first horizontal element. The probe carries a disc (21) with a circular rim (22) and its shaft is always in contact with the template so that the disc contacts a point on the lens rim at which the bevel is required to be formed.
FR7911413A 1979-05-07 1979-05-07 Contour distance measurement for ophthalmic lens - employs probe acting template to indicate mounting bevel position Granted FR2456304A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7911413A FR2456304A1 (en) 1979-05-07 1979-05-07 Contour distance measurement for ophthalmic lens - employs probe acting template to indicate mounting bevel position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7911413A FR2456304A1 (en) 1979-05-07 1979-05-07 Contour distance measurement for ophthalmic lens - employs probe acting template to indicate mounting bevel position

Publications (2)

Publication Number Publication Date
FR2456304A1 true FR2456304A1 (en) 1980-12-05
FR2456304B1 FR2456304B1 (en) 1982-06-18

Family

ID=9225113

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911413A Granted FR2456304A1 (en) 1979-05-07 1979-05-07 Contour distance measurement for ophthalmic lens - employs probe acting template to indicate mounting bevel position

Country Status (1)

Country Link
FR (1) FR2456304A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394099A (en) * 1981-01-22 1983-07-19 Lemay Corporation Plastic lens contour cutting machine
JPS6071156A (en) * 1983-03-22 1985-04-23 エシロ−ル　アンテルナシヨナル　コムパニ−　ジエネラル　ドプテイク Method and device for forming inclined plane to rim surface of lens of eyeglass
EP0152330A2 (en) * 1984-01-30 1985-08-21 Allergan, Inc Cutting device and method for the precision trimming of the edge of a centrifugally cast lens
FR2562830A1 (en) * 1984-04-11 1985-10-18 Essilor Int Grinding machine for manual grinding of spectacle lenses and grinding wheel used on such a machine
FR2562829A1 (en) * 1984-04-12 1985-10-18 Briot Int CONTROL DEVICE FOR LIFTING AND TRANSLATING THE TROLLEY OF AN OVERFLOWING AND BEVELING GLASSES OF GLASSES
EP0281480A1 (en) * 1987-03-05 1988-09-07 Briot International Ophthalmic glasses bevelling machines
FR2682058A1 (en) * 1991-10-04 1993-04-09 Buchmann Optical Eng APPARATUS FOR RAISING THE TOPOGRAPHY OF THE CONVEX FACE OF AN OPTICAL GLASS AND MACHINE FOR LAYING AN ADAPTER INCLUDING SUCH AN APPARATUS.
DE4235212A1 (en) * 1991-10-21 1993-04-22 Buchmann Optical Eng IMPROVEMENTS ON MACHINES FOR GRINDING AND FACETING OPHTHALMIC GLASSES

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1455863A (en) * 1919-06-16 1923-05-22 Onepiece Bifocal Lens Company Lens-edging machine
US2329713A (en) * 1939-05-27 1943-09-21 American Optical Corp Lens edging device
FR1510824A (en) * 1966-03-07 1968-01-26 Improvement in machines for overflowing, bevelling and grooving spectacle lenses
DE1938153A1 (en) * 1969-07-26 1971-02-11 Wernicke & Co Kg Spectacle lens grinding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1455863A (en) * 1919-06-16 1923-05-22 Onepiece Bifocal Lens Company Lens-edging machine
US2329713A (en) * 1939-05-27 1943-09-21 American Optical Corp Lens edging device
FR1510824A (en) * 1966-03-07 1968-01-26 Improvement in machines for overflowing, bevelling and grooving spectacle lenses
DE1938153A1 (en) * 1969-07-26 1971-02-11 Wernicke & Co Kg Spectacle lens grinding machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394099A (en) * 1981-01-22 1983-07-19 Lemay Corporation Plastic lens contour cutting machine
JPS6071156A (en) * 1983-03-22 1985-04-23 エシロ−ル　アンテルナシヨナル　コムパニ−　ジエネラル　ドプテイク Method and device for forming inclined plane to rim surface of lens of eyeglass
JPH055629B2 (en) * 1983-03-22 1993-01-22 Eshirooru Intern Co Jeneraru Doputeitsuku
EP0152330A2 (en) * 1984-01-30 1985-08-21 Allergan, Inc Cutting device and method for the precision trimming of the edge of a centrifugally cast lens
EP0152330A3 (en) * 1984-01-30 1987-08-19 Polymatic Investment Corporation N.V. Cutting device and method for the precision trimming of the edge of a centrifugally cast lens
FR2562830A1 (en) * 1984-04-11 1985-10-18 Essilor Int Grinding machine for manual grinding of spectacle lenses and grinding wheel used on such a machine
FR2562829A1 (en) * 1984-04-12 1985-10-18 Briot Int CONTROL DEVICE FOR LIFTING AND TRANSLATING THE TROLLEY OF AN OVERFLOWING AND BEVELING GLASSES OF GLASSES
EP0281480A1 (en) * 1987-03-05 1988-09-07 Briot International Ophthalmic glasses bevelling machines
FR2611560A1 (en) * 1987-03-05 1988-09-09 Briot Int IMPROVEMENTS IN GRINDING AND BEVELING MACHINES FOR OPHTHALMIC LENSES
FR2682058A1 (en) * 1991-10-04 1993-04-09 Buchmann Optical Eng APPARATUS FOR RAISING THE TOPOGRAPHY OF THE CONVEX FACE OF AN OPTICAL GLASS AND MACHINE FOR LAYING AN ADAPTER INCLUDING SUCH AN APPARATUS.
DE4235212A1 (en) * 1991-10-21 1993-04-22 Buchmann Optical Eng IMPROVEMENTS ON MACHINES FOR GRINDING AND FACETING OPHTHALMIC GLASSES

Also Published As

Publication number Publication date
FR2456304B1 (en) 1982-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse