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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (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.
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 |