BE846873A - Lentille a surface non spherique et son procede de realisation, - Google Patents
Lentille a surface non spherique et son procede de realisation,Info
- Publication number
- BE846873A BE846873A BE171184A BE171184A BE846873A BE 846873 A BE846873 A BE 846873A BE 171184 A BE171184 A BE 171184A BE 171184 A BE171184 A BE 171184A BE 846873 A BE846873 A BE 846873A
- Authority
- BE
- Belgium
- Prior art keywords
- lens
- spherical surface
- embodiment process
- spherical
- Prior art date
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
- G02C7/04—Contact lenses for the eyes
- G02C7/041—Contact lenses for the eyes bifocal; multifocal
- G02C7/044—Annular configuration, e.g. pupil tuned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00028—Bifocal lenses; Multifocal lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/10—Bifocal lenses; Multifocal 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
- G02C7/04—Contact lenses for the eyes
- G02C7/041—Contact lenses for the eyes bifocal; multifocal
- G02C7/042—Simultaneous type
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62078675A | 1975-10-08 | 1975-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE846873A true BE846873A (fr) | 1977-04-01 |
Family
ID=24487387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE171184A BE846873A (fr) | 1975-10-08 | 1976-10-01 | Lentille a surface non spherique et son procede de realisation, |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5246826A (forum.php) |
| BE (1) | BE846873A (forum.php) |
| BR (1) | BR7606688A (forum.php) |
| FR (1) | FR2327562A1 (forum.php) |
| GB (1) | GB1561892A (forum.php) |
| IT (1) | IT1075969B (forum.php) |
| LU (1) | LU75941A1 (forum.php) |
| NL (1) | NL7611086A (forum.php) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4165158A (en) * | 1977-07-25 | 1979-08-21 | American Optical Corporation | Cast contact lenses and method for making same |
| WO1979000082A1 (en) * | 1977-08-02 | 1979-02-22 | Automated Optics | Method and apparatus adapted for automatic or semi-automatic fabrication of ultra-precision ophthalmic lenses,e.g.,contact lenses |
| FR2509483A1 (fr) * | 1981-04-15 | 1983-01-14 | Essilor Int | Lentille de contact |
| GB2132785A (en) * | 1982-12-23 | 1984-07-11 | Nat Patent Dev Corp | Thin aphakic contact lens |
| US4580882A (en) * | 1983-04-21 | 1986-04-08 | Benjamin Nuchman | Continuously variable contact lens |
| GB2192291B (en) * | 1986-03-04 | 1990-08-22 | Gupta Anil K | Progressive power contact lens. |
| US5417306A (en) * | 1993-06-03 | 1995-05-23 | Robl; William A. | Tree climbing apparatus |
| GB2327283B (en) * | 1997-06-04 | 2002-02-27 | Bausch & Lomb | Manufacture of contact lenses |
| GB0504448D0 (en) * | 2005-03-03 | 2005-04-06 | Spurgeon Peter J C | Optical apparatus and image processing |
| US20250035960A1 (en) * | 2023-07-25 | 2025-01-30 | Coopervision International Limited | Contact lenses and methods relating thereto |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS493595A (forum.php) * | 1972-04-21 | 1974-01-12 |
-
1976
- 1976-10-01 BE BE171184A patent/BE846873A/xx unknown
- 1976-10-04 FR FR7629795A patent/FR2327562A1/fr active Granted
- 1976-10-05 LU LU75941A patent/LU75941A1/xx unknown
- 1976-10-06 GB GB4143176A patent/GB1561892A/en not_active Expired
- 1976-10-06 BR BR7606688A patent/BR7606688A/pt unknown
- 1976-10-07 IT IT6941776A patent/IT1075969B/it active
- 1976-10-07 NL NL7611086A patent/NL7611086A/xx not_active Application Discontinuation
- 1976-10-08 JP JP12048976A patent/JPS5246826A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5246826A (en) | 1977-04-14 |
| BR7606688A (pt) | 1977-11-16 |
| IT1075969B (it) | 1985-04-22 |
| GB1561892A (en) | 1980-03-05 |
| FR2327562B3 (forum.php) | 1979-06-15 |
| NL7611086A (nl) | 1977-04-13 |
| LU75941A1 (forum.php) | 1977-05-25 |
| FR2327562A1 (fr) | 1977-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2349866A1 (fr) | Hologramme et son procede de realisation | |
| SE413881B (sv) | Sorteringsapparat | |
| BR7604289A (pt) | Processo de extrusao | |
| IT7828777A0 (it) | Polimeri a gruppi immidi. | |
| FR2337120A1 (fr) | Procede d | |
| BR7708470A (pt) | Processo de producao de dimetileter | |
| BR7607640A (pt) | Aperfeicoamento em processo de fotografia | |
| BE847873A (fr) | 9-hydroxydibenzo (b,d) pyranes et intermediaires appropries, | |
| BE846873A (fr) | Lentille a surface non spherique et son procede de realisation, | |
| DK64676A (da) | Pyrolyserede polymerpartikler | |
| BR7702849A (pt) | Processo de copolimerizacao da acrilonitrila | |
| FR2326871A1 (fr) | Ersatz de bacon et procede de fabrication | |
| BE842182A (fr) | Lucknomycine et son procede de preparation | |
| FR2297663A1 (fr) | Procede et d | |
| SE7704051L (sv) | Pelletiseringsanordning | |
| FR2328586A1 (fr) | Dispositif de suspension pneumatique | |
| NO146017C (no) | Sorterer | |
| NL7509352A (nl) | Sorteerinrichting. | |
| FR2306792A1 (fr) | Element abrasif spherique et son procede de realisation | |
| FR2301491A1 (fr) | Procede d | |
| OA05670A (fr) | Procédé de décaféinisation. | |
| NL7605399A (nl) | Glazen lens met een fotochromische gradient. | |
| BE859621A (fr) | Procede faconnage et de revetement | |
| BR7603920A (pt) | Processo de fabricacao de prelajes | |
| BR7703777A (pt) | Processo de recauchutagem de pneumaticos |