JPS5753570B2 - - Google Patents
Info
- Publication number
- JPS5753570B2 JPS5753570B2 JP49092885A JP9288574A JPS5753570B2 JP S5753570 B2 JPS5753570 B2 JP S5753570B2 JP 49092885 A JP49092885 A JP 49092885A JP 9288574 A JP9288574 A JP 9288574A JP S5753570 B2 JPS5753570 B2 JP S5753570B2
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
- G02C7/061—Spectacle lenses with progressively varying focal power
- G02C7/063—Shape of the progressive surface
-
- 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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
- C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
- C03B23/0357—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by suction without blowing, e.g. with vacuum or by venturi effect
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/20—Uniting glass pieces by fusing without substantial reshaping
- C03B23/22—Uniting glass lenses, e.g. forming bifocal lenses
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
- G02C7/061—Spectacle lenses with progressively varying focal power
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38904473A | 1973-08-16 | 1973-08-16 | |
| US38904373A | 1973-08-16 | 1973-08-16 | |
| US38904273A | 1973-08-16 | 1973-08-16 | |
| US05/619,143 US4056311A (en) | 1973-08-16 | 1975-10-01 | Progressive power ophthalmic lens having a plurality of viewing zones with non-discontinuous variations therebetween |
| US05/638,870 US4055379A (en) | 1973-08-16 | 1975-12-08 | Multifocal lens |
| US05/638,869 US4062629A (en) | 1973-08-16 | 1975-12-08 | Progressive power ophthalmic lens having a plurality of viewing zone with discontinuous power variations therebetween |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5046348A JPS5046348A (en) | 1975-04-25 |
| JPS5753570B2 true JPS5753570B2 (en) | 1982-11-13 |
Family
ID=62567082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49092885A Expired JPS5753570B2 (en) | 1973-08-16 | 1974-08-15 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5753570B2 (en) |
| DE (5) | DE2462446C3 (en) |
| FR (2) | FR2270613A1 (en) |
| NL (1) | NL168626C (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL168626C (en) * | 1973-08-16 | 1982-04-16 | American Optical Corp | LENS FOR GLASSES WITH VARIETY OF STRENGTH. |
| JPS526635U (en) * | 1975-07-01 | 1977-01-18 | ||
| DE2610203B2 (en) * | 1976-03-11 | 1981-01-22 | Optische Werke G. Rodenstock, 8000 Muenchen | Progressive lens |
| FR2419257A1 (en) * | 1978-03-08 | 1979-10-05 | Stenger Et Cie Sarl E Et G | Multifocal, glass spectacle lens - with progressive alteration in power of zone for close observation or reading |
| FR2425653A1 (en) * | 1978-05-12 | 1979-12-07 | Essilor Int | PROCESS FOR DEVELOPING A REFRACTION SURFACE OF AN OPHTHALMIC LENS WITH PROGRESSIVELY VARIABLE FOCAL POWER |
| JPS5942286B2 (en) * | 1979-08-24 | 1984-10-13 | セイコーエプソン株式会社 | eyeglass lenses |
| JPS56128916A (en) * | 1980-02-14 | 1981-10-08 | Itek Corp | Lens for glasses having sequentially varying focus |
| US4307945A (en) * | 1980-02-14 | 1981-12-29 | Itek Corporation | Progressively varying focal power opthalmic lens |
| US4271538A (en) * | 1980-03-24 | 1981-06-09 | Norton Company | Safety spectacles |
| JPS56144414A (en) * | 1980-04-12 | 1981-11-10 | Hoya Corp | Progressive multifocal lens |
| JPS5799613A (en) * | 1980-12-12 | 1982-06-21 | Seiko Epson Corp | Progressive multifocus lens |
| JPS5794714A (en) * | 1980-12-05 | 1982-06-12 | Seiko Epson Corp | Progressive multifocus lens |
| FR2495789B1 (en) * | 1980-12-05 | 1986-02-14 | Suwa Seikosha Kk | PROGRESSIVE MULTIFOCAL LENS |
| DE3116524C2 (en) * | 1981-02-09 | 1993-06-24 | AO Inc., Southbridge, Mass. | Spectacle lenses, especially for correcting presbyopia |
| JPS57210320A (en) * | 1981-06-19 | 1982-12-23 | Hoya Corp | Progressive focus lens |
| JPS5988718A (en) * | 1982-11-12 | 1984-05-22 | Hoya Corp | Progressive focusing spectacle lens considering vergence of eye |
| JPH0690368B2 (en) * | 1985-07-09 | 1994-11-14 | セイコーエプソン株式会社 | Progressive multifocal lens and glasses |
| GB8528460D0 (en) * | 1985-11-19 | 1985-12-24 | Sola Int Holdings | Multifocal lens |
| US4838675A (en) * | 1987-06-19 | 1989-06-13 | Sola International Holdings, Ltd. | Method for improving progressive lens designs and resulting article |
| DE3739974A1 (en) * | 1987-11-25 | 1989-06-08 | Rodenstock Optik G | PROGRESSIVE GLASS GLASS |
| JPH03109522A (en) * | 1990-09-14 | 1991-05-09 | Seiko Epson Corp | Progressive multifocus lens |
| US5446508A (en) * | 1994-02-18 | 1995-08-29 | Bmc Industries, Inc. | Progressive power lens |
| US6827441B2 (en) | 2002-01-31 | 2004-12-07 | Opticlear Inc. | Progressive lens with reduced distortion |
| CN101208628B (en) | 2005-06-03 | 2011-05-18 | Hoya株式会社 | Eye-use lens |
| DE102005057533A1 (en) | 2005-12-01 | 2007-06-06 | Rodenstock Gmbh | Method for calculating the magnification and / or distortion and method for producing a spectacle lens with low magnification and / or distortion |
| US9256083B2 (en) | 2011-09-22 | 2016-02-09 | Ocular Technology Inc. | Multi-focal lens |
| JP2019045545A (en) * | 2017-08-30 | 2019-03-22 | 東海光学株式会社 | Bifocal lens and method for manufacturing the same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1271356A (en) * | 1915-04-01 | 1918-07-02 | Arthur E Paige | Multifocal optical element. |
| US2475275A (en) * | 1945-01-19 | 1949-07-05 | Birchall Henry James | Lens of variable focal power having surfaces of involute form |
| US2919523A (en) * | 1951-09-04 | 1960-01-05 | Bozena Marie Phillips | Ophthalmic lenses and process and apparatus for producing the same |
| BE533468A (en) * | 1953-11-25 | |||
| DE1151955B (en) * | 1953-11-25 | 1963-07-25 | & Commerciale Des Ouvriers Lun | Optical element with constantly changing refractive power |
| DE1145820B (en) * | 1956-10-06 | 1963-03-21 | Saint Gobain | Lens |
| FR1509090A (en) * | 1966-11-29 | 1968-01-12 | Lunetiers Cottet Poichet Soc D | Improvements to ophthalmic lenses with progressively variable focal power |
| BE755907A (en) * | 1969-09-11 | 1971-02-15 | Lunetiers | PROGRESSIVE FOCAL POWER LENSES |
| NL168626C (en) * | 1973-08-16 | 1982-04-16 | American Optical Corp | LENS FOR GLASSES WITH VARIETY OF STRENGTH. |
-
1974
- 1974-08-12 NL NLAANVRAGE7410793,A patent/NL168626C/en not_active IP Right Cessation
- 1974-08-13 FR FR7428011A patent/FR2270613A1/en active Granted
- 1974-08-14 DE DE2462446A patent/DE2462446C3/en not_active Expired
- 1974-08-14 DE DE19742439127 patent/DE2439127B2/en not_active Ceased
- 1974-08-15 JP JP49092885A patent/JPS5753570B2/ja not_active Expired
-
1976
- 1976-09-23 FR FR7628575A patent/FR2326718A2/en active Granted
- 1976-10-01 DE DE19767630825U patent/DE7630825U1/en not_active Expired
- 1976-10-01 DE DE19762644450 patent/DE2644450A1/en active Pending
- 1976-10-01 DE DE19762644510 patent/DE2644510A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE2462446C3 (en) | 1979-09-20 |
| NL168626C (en) | 1982-04-16 |
| DE2439127B2 (en) | 1977-10-06 |
| JPS5046348A (en) | 1975-04-25 |
| DE7630825U1 (en) | 1980-04-17 |
| FR2326718A2 (en) | 1977-04-29 |
| DE2439127A1 (en) | 1975-02-27 |
| NL7410793A (en) | 1975-02-18 |
| DE2462446B2 (en) | 1979-01-25 |
| FR2270613A1 (en) | 1975-12-05 |
| DE2644510A1 (en) | 1977-04-14 |
| FR2270613B1 (en) | 1979-06-15 |
| FR2326718B2 (en) | 1982-04-30 |
| DE2462446A1 (en) | 1977-03-31 |
| DE2644450A1 (en) | 1977-04-07 |
| NL168626B (en) | 1981-11-16 |