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 positionInfo
- 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
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
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.
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)
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 |
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 |
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 |
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)
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 |
-
1979
- 1979-05-07 FR FR7911413A patent/FR2456304A1/en active Granted
Patent Citations (4)
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)
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 |