DE3719694A1 - Sphaerische multifokallinse aus kunststoff und verfahren zu ihrer herstellung - Google Patents
Sphaerische multifokallinse aus kunststoff und verfahren zu ihrer herstellungInfo
- Publication number
- DE3719694A1 DE3719694A1 DE19873719694 DE3719694A DE3719694A1 DE 3719694 A1 DE3719694 A1 DE 3719694A1 DE 19873719694 DE19873719694 DE 19873719694 DE 3719694 A DE3719694 A DE 3719694A DE 3719694 A1 DE3719694 A1 DE 3719694A1
- Authority
- DE
- Germany
- Prior art keywords
- lens
- resin layer
- refractive index
- synthetic resin
- monomer
- 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
- 238000000034 method Methods 0.000 title claims description 21
- 229920003023 plastic Polymers 0.000 title claims description 14
- 239000004033 plastic Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title description 17
- 239000000178 monomer Substances 0.000 claims description 77
- 239000000203 mixture Substances 0.000 claims description 48
- 229920003002 synthetic resin Polymers 0.000 claims description 45
- 239000000057 synthetic resin Substances 0.000 claims description 45
- 238000006116 polymerization reaction Methods 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000010410 layer Substances 0.000 description 37
- 229920000642 polymer Polymers 0.000 description 26
- 238000005266 casting Methods 0.000 description 21
- 238000003825 pressing Methods 0.000 description 12
- 238000007789 sealing Methods 0.000 description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 8
- 238000005498 polishing Methods 0.000 description 8
- 125000006850 spacer group Chemical group 0.000 description 8
- 230000001186 cumulative effect Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 229920006037 cross link polymer Polymers 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- FUQAGKYWAUZSEJ-UHFFFAOYSA-N 2,3,4,5-tetrabromo-6-(2-hydroxyphenyl)phenol Chemical compound OC1=CC=CC=C1C1=C(O)C(Br)=C(Br)C(Br)=C1Br FUQAGKYWAUZSEJ-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 3
- 230000004075 alteration Effects 0.000 description 3
- AOJOEFVRHOZDFN-UHFFFAOYSA-N benzyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CC=C1 AOJOEFVRHOZDFN-UHFFFAOYSA-N 0.000 description 3
- SYFOAKAXGNMQAX-UHFFFAOYSA-N bis(prop-2-enyl) carbonate;2-(2-hydroxyethoxy)ethanol Chemical compound OCCOCCO.C=CCOC(=O)OCC=C SYFOAKAXGNMQAX-UHFFFAOYSA-N 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- ROLAGNYPWIVYTG-UHFFFAOYSA-N 1,2-bis(4-methoxyphenyl)ethanamine;hydrochloride Chemical compound Cl.C1=CC(OC)=CC=C1CC(N)C1=CC=C(OC)C=C1 ROLAGNYPWIVYTG-UHFFFAOYSA-N 0.000 description 2
- WGGLDBIZIQMEGH-UHFFFAOYSA-N 1-bromo-4-ethenylbenzene Chemical compound BrC1=CC=C(C=C)C=C1 WGGLDBIZIQMEGH-UHFFFAOYSA-N 0.000 description 2
- DYLRAYRKPSSZNM-UHFFFAOYSA-N 3,3-diethoxy-2-methylprop-2-enoic acid Chemical compound CCOC(OCC)=C(C)C(O)=O DYLRAYRKPSSZNM-UHFFFAOYSA-N 0.000 description 2
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 2
- KCMITHMNVLRGJU-CMDGGOBGSA-N Allyl cinnamate Chemical compound C=CCOC(=O)\C=C\C1=CC=CC=C1 KCMITHMNVLRGJU-CMDGGOBGSA-N 0.000 description 2
- -1 Bencylacrylate Chemical compound 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000004641 Diallyl-phthalate Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 2
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- QIWKUEJZZCOPFV-UHFFFAOYSA-N phenyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=CC=C1 QIWKUEJZZCOPFV-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- 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
- B29D11/0048—Moulds for lenses
- B29D11/00528—Consisting of two mould halves joined by an annular gasket
-
- 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
- B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
-
- 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
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Eyeglasses (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61137295A JPS62295001A (ja) | 1986-06-14 | 1986-06-14 | 合成樹脂製多焦点球面レンズおよびその製法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3719694A1 true DE3719694A1 (de) | 1988-02-18 |
| DE3719694C2 DE3719694C2 (enExample) | 1989-06-01 |
Family
ID=15195344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873719694 Granted DE3719694A1 (de) | 1986-06-14 | 1987-06-12 | Sphaerische multifokallinse aus kunststoff und verfahren zu ihrer herstellung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4944584A (enExample) |
| JP (1) | JPS62295001A (enExample) |
| AU (1) | AU586926B2 (enExample) |
| DE (1) | DE3719694A1 (enExample) |
| FR (1) | FR2600174B1 (enExample) |
Families Citing this family (75)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63204229A (ja) * | 1987-02-20 | 1988-08-23 | Nippon Contact Lens:Kk | コンタクトレンズ |
| JPH0644112B2 (ja) * | 1987-02-20 | 1994-06-08 | 株式会社日本コンタクトレンズ | コンタクトレンズ |
| FR2649397B1 (fr) * | 1989-07-07 | 1992-01-03 | Essilor Int | Procede et dispositif pour l'obtention d'un polymere a gradient d'indice |
| US5080472B1 (en) * | 1989-07-21 | 1995-10-31 | Ioptex Research Inc | Multifocal optical lens |
| US5143659A (en) * | 1989-10-04 | 1992-09-01 | Eastman Kodak Company | Method and apparatus for manufacturing aspherically shaped small lenses |
| US5040961A (en) * | 1989-10-04 | 1991-08-20 | Eastman Kodak Company | Apparatus for manufacturing aspherically shaped small lenses |
| GB9125480D0 (en) * | 1991-11-29 | 1992-01-29 | Pilkington Visioncare Holdings | Polymeric bifocal lens production process |
| US5981618A (en) * | 1994-06-10 | 1999-11-09 | Johnson & Johnson Vision Products, Inc. | Mold clamping and precure of a polymerizable hydrogel |
| US5757459A (en) * | 1995-03-03 | 1998-05-26 | Vision-Ease Lens, Inc. | Multifocal optical elements |
| EP0762151A3 (en) * | 1995-08-30 | 1998-08-05 | Nikon Corporation | Optical article with coat and method of making the same |
| US5861934A (en) * | 1996-05-06 | 1999-01-19 | Innotech, Inc. | Refractive index gradient lens |
| KR100496725B1 (ko) * | 1996-05-06 | 2005-09-27 | 존슨 앤드 존슨 비젼 케어, 인코포레이티드 | 광학제품및이의제조방법 |
| US6857741B2 (en) * | 2002-01-16 | 2005-02-22 | E-Vision, Llc | Electro-active multi-focal spectacle lens |
| US7023594B2 (en) | 2000-06-23 | 2006-04-04 | E-Vision, Llc | Electro-optic lens with integrated components |
| US6619799B1 (en) * | 1999-07-02 | 2003-09-16 | E-Vision, Llc | Optical lens system with electro-active lens having alterably different focal lengths |
| US6986579B2 (en) * | 1999-07-02 | 2006-01-17 | E-Vision, Llc | Method of manufacturing an electro-active lens |
| US6871951B2 (en) * | 2000-06-23 | 2005-03-29 | E-Vision, Llc | Electro-optic lens with integrated components |
| US7604349B2 (en) * | 1999-07-02 | 2009-10-20 | E-Vision, Llc | Static progressive surface region in optical communication with a dynamic optic |
| US7404636B2 (en) | 1999-07-02 | 2008-07-29 | E-Vision, Llc | Electro-active spectacle employing modal liquid crystal lenses |
| US20070258039A1 (en) * | 1999-07-02 | 2007-11-08 | Duston Dwight P | Spectacle frame bridge housing electronics for electro-active spectacle lenses |
| US7290876B2 (en) * | 1999-07-02 | 2007-11-06 | E-Vision, Llc | Method and system for electro-active spectacle lens design |
| US7290875B2 (en) * | 2004-11-02 | 2007-11-06 | Blum Ronald D | Electro-active spectacles and method of fabricating same |
| US7988286B2 (en) | 1999-07-02 | 2011-08-02 | E-Vision Llc | Static progressive surface region in optical communication with a dynamic optic |
| US7775660B2 (en) * | 1999-07-02 | 2010-08-17 | E-Vision Llc | Electro-active ophthalmic lens having an optical power blending region |
| US7077985B2 (en) * | 2000-05-30 | 2006-07-18 | Vision-Ease Lens | Injection molding of lens |
| US6663801B2 (en) * | 2001-04-06 | 2003-12-16 | Johnson & Johnson Vision Care, Inc. | Silicon carbide IR-emitter heating device and method for demolding lenses |
| KR20040053147A (ko) * | 2001-10-05 | 2004-06-23 | 이-비젼 엘엘씨 | 하이브리드 전기-활성 렌즈 |
| US6712466B2 (en) * | 2001-10-25 | 2004-03-30 | Ophthonix, Inc. | Eyeglass manufacturing method using variable index layer |
| US6801360B2 (en) * | 2002-10-28 | 2004-10-05 | International Polarizer, Inc. | Polarized lens formed by injection/coining injection molding process |
| US20040080062A1 (en) * | 2002-10-28 | 2004-04-29 | Advanced Lens Technology, Inc. | Processes for forming a polarized lens via injection/coining injection molding |
| US6834956B2 (en) * | 2002-12-27 | 2004-12-28 | International Polarizer, Inc. | Thermoformable polarized lens with substrate having adjusted glass transition temperature |
| JPWO2004109369A1 (ja) * | 2003-06-09 | 2006-07-20 | 株式会社アサヒオプティカル | ２焦点プラスチックレンズ |
| TW200532278A (en) * | 2003-08-15 | 2005-10-01 | E Vision Llc | Enhanced electro-active lens system |
| AU2004270746B2 (en) | 2003-09-09 | 2010-12-02 | Insight Equity A.P.X., Lp | Photochromic polyurethane laminate |
| US7858001B2 (en) * | 2003-09-09 | 2010-12-28 | Insight Equity A.P.X., L.P. | Photochromic lens |
| US20050237485A1 (en) * | 2004-04-21 | 2005-10-27 | Blum Ronald D | Method and apparatus for correcting vision |
| US9801709B2 (en) | 2004-11-02 | 2017-10-31 | E-Vision Smart Optics, Inc. | Electro-active intraocular lenses |
| US8778022B2 (en) | 2004-11-02 | 2014-07-15 | E-Vision Smart Optics Inc. | Electro-active intraocular lenses |
| US8915588B2 (en) | 2004-11-02 | 2014-12-23 | E-Vision Smart Optics, Inc. | Eyewear including a heads up display |
| KR101244647B1 (ko) * | 2004-11-02 | 2013-03-18 | 이-비젼 엘엘씨 | 전기 활성 안경 및 이의 제조 방법 |
| EP1874984A2 (en) | 2005-03-04 | 2008-01-09 | Vision-Ease Lens, Inc. | Forming method for polymeric laminated wafers comprising different film materials |
| FR2884622B1 (fr) * | 2005-04-19 | 2007-08-10 | Essilor Int | Verre ophtalmique comprenant une couche d'indice de refraction variable |
| US7258437B2 (en) * | 2005-09-07 | 2007-08-21 | Transitions Optical, Inc. | Photochromic multifocal optical article |
| US20070159562A1 (en) * | 2006-01-10 | 2007-07-12 | Haddock Joshua N | Device and method for manufacturing an electro-active spectacle lens involving a mechanically flexible integration insert |
| US20080273166A1 (en) | 2007-05-04 | 2008-11-06 | William Kokonaski | Electronic eyeglass frame |
| WO2008105780A2 (en) | 2006-05-24 | 2008-09-04 | Pixeloptics, Inc. | Optical rangefinder for an electro-active lens |
| JP2009541793A (ja) | 2006-06-23 | 2009-11-26 | ピクセルオプティクス， インコーポレイテッド | 電気活性眼鏡レンズ用の電子アダプタ |
| US7735998B2 (en) * | 2006-10-25 | 2010-06-15 | Volk Donald A | Multi-layered multifocal lens with blended refractive index |
| US7740354B2 (en) * | 2006-10-25 | 2010-06-22 | Volk Donald A | Multi-layered gradient index progressive lens |
| WO2008054654A2 (en) * | 2006-10-27 | 2008-05-08 | Pixeloptics, Inc. | Spectacle hinge for providing on off power |
| AR064985A1 (es) | 2007-01-22 | 2009-05-06 | E Vision Llc | Lente electroactivo flexible |
| US7926940B2 (en) | 2007-02-23 | 2011-04-19 | Pixeloptics, Inc. | Advanced electro-active optic device |
| AU2008218240B2 (en) | 2007-02-23 | 2014-01-30 | E-Vision Smart Optics, Inc. | Ophthalmic dynamic aperture |
| US7883207B2 (en) | 2007-12-14 | 2011-02-08 | Pixeloptics, Inc. | Refractive-diffractive multifocal lens |
| US20080273169A1 (en) | 2007-03-29 | 2008-11-06 | Blum Ronald D | Multifocal Lens Having a Progressive Optical Power Region and a Discontinuity |
| CA2679977A1 (en) | 2007-03-07 | 2008-09-18 | Pixeloptics, Inc. | Multifocal lens having a progressive optical power region and a discontinuity |
| US12572035B2 (en) | 2007-05-04 | 2026-03-10 | E-Vision Optics, Llc | Moisture-resistant eye wear |
| US11061252B2 (en) | 2007-05-04 | 2021-07-13 | E-Vision, Llc | Hinge for electronic spectacles |
| US10613355B2 (en) | 2007-05-04 | 2020-04-07 | E-Vision, Llc | Moisture-resistant eye wear |
| US8317321B2 (en) | 2007-07-03 | 2012-11-27 | Pixeloptics, Inc. | Multifocal lens with a diffractive optical power region |
| CA2706150A1 (en) * | 2007-12-14 | 2009-06-25 | Pixeloptics, Inc. | Multiple layer multifocal composite lens |
| US8154804B2 (en) | 2008-03-25 | 2012-04-10 | E-Vision Smart Optics, Inc. | Electro-optic lenses for correction of higher order aberrations |
| WO2009120152A1 (en) * | 2008-04-23 | 2009-10-01 | Innovative Nano Systems Pte. Ltd. | Variable optical systems and components |
| DE102008046140B4 (de) * | 2008-09-05 | 2010-11-18 | Zürcher, Ralf | Kontaktlinse |
| CN101936502A (zh) * | 2009-06-30 | 2011-01-05 | 富准精密工业(深圳)有限公司 | 透镜、发光二极管模组及其应用的照明装置 |
| CN101963322A (zh) * | 2009-07-21 | 2011-02-02 | 富准精密工业(深圳)有限公司 | 透镜、发光二极管模组及照明装置 |
| US12436411B2 (en) | 2010-07-02 | 2025-10-07 | E-Vision Optics, Llc | Moisture-resistant eye wear |
| EP2629966B1 (en) * | 2010-10-18 | 2020-12-30 | Case Western Reserve University | Aspherical grin lens |
| US12510773B2 (en) | 2011-02-11 | 2025-12-30 | E-Vision Optics, Llc | Moisture-resistant eye wear |
| WO2013103985A2 (en) | 2012-01-06 | 2013-07-11 | Pixeloptics, Inc. | Eyewear docking station and electronic module |
| US9789655B1 (en) * | 2014-03-14 | 2017-10-17 | Verily Life Sciences Llc | Methods for mold release of body-mountable devices including microelectronics |
| ES2973138T3 (es) | 2016-04-12 | 2024-06-18 | E Vision Smart Optics Inc | Lentes electroactivas con puentes resistivos elevados |
| US11172112B2 (en) | 2019-09-09 | 2021-11-09 | Embedtek, LLC | Imaging system including a non-linear reflector |
| US20220072743A1 (en) * | 2020-06-26 | 2022-03-10 | The Research Foundation For The State University Of New York | Thermoplastic components, systems, and methods for forming same |
| JP7473648B2 (ja) * | 2020-06-30 | 2024-04-23 | 富士フイルム株式会社 | ブレーズド回折光学素子、及びブレーズド回折光学素子の製造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57201216A (en) * | 1981-06-04 | 1982-12-09 | Seiko Epson Corp | Multifocus organic lens having unequal refractive index |
| JPS58120217A (ja) * | 1982-01-12 | 1983-07-18 | Hoya Corp | プラスチツク製２重焦点レンズ |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2405989A (en) * | 1941-08-12 | 1946-08-20 | Beach Lens Corp | Lens |
| GB1029766A (en) * | 1963-09-23 | 1966-05-18 | Bausch & Lomb | Ophthalmic lenses |
| US3485556A (en) * | 1966-04-01 | 1969-12-23 | Bausch & Lomb | Multifocal plastic ophthalmic lens |
| US3560598A (en) * | 1968-10-11 | 1971-02-02 | Charles W Neefe | Process for making plastic multifocal lenses |
| US4208362A (en) * | 1975-04-21 | 1980-06-17 | Bausch & Lomb Incorporated | Shaped body of at least two polymerized materials and method to make same |
| US4190621A (en) * | 1977-03-10 | 1980-02-26 | Martin Greshes | Method for molding optical plastic lenses of the standard and bifocal type |
| JPS5974501A (ja) * | 1982-10-21 | 1984-04-27 | Nippon Sheet Glass Co Ltd | 複合レンズおよびその製造方法 |
| US4701288A (en) * | 1985-06-05 | 1987-10-20 | Bausch & Lomb Incorporated | Method of making articles of dissimilar polymer compositions |
-
1986
- 1986-06-14 JP JP61137295A patent/JPS62295001A/ja active Pending
-
1987
- 1987-06-12 DE DE19873719694 patent/DE3719694A1/de active Granted
- 1987-06-12 AU AU74171/87A patent/AU586926B2/en not_active Ceased
- 1987-06-12 FR FR8708202A patent/FR2600174B1/fr not_active Expired - Lifetime
-
1989
- 1989-02-23 US US07/315,258 patent/US4944584A/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57201216A (en) * | 1981-06-04 | 1982-12-09 | Seiko Epson Corp | Multifocus organic lens having unequal refractive index |
| JPS58120217A (ja) * | 1982-01-12 | 1983-07-18 | Hoya Corp | プラスチツク製２重焦点レンズ |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3719694C2 (enExample) | 1989-06-01 |
| FR2600174A1 (fr) | 1987-12-18 |
| JPS62295001A (ja) | 1987-12-22 |
| AU7417187A (en) | 1987-12-17 |
| FR2600174B1 (fr) | 1992-11-06 |
| AU586926B2 (en) | 1989-07-27 |
| US4944584A (en) | 1990-07-31 |
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