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1. 发明专利

JPH04293012A OXYGEN PERMEABLE TWO FOCUS CONTACT LENS AND METHOD OF ITS MANUFACTURE 失效
公开(公告)号：JPH04293012A
公开(公告)日：1992-10-16
申请号：JP31680091
申请日：1991-11-29
申请人： PILKINGTON VISIONCARE INC
发明人： RIISA EI PETEIGURIYUU , DONARUDO EI RATOKOUSUKII , UIRIAMU JIEI BAAKU , JIYOSEFU AI WAINSHIENKU ZA SAA
IPC分类号： C08F220/22 , B29C39/02 , B29D11/00 , C08F20/22 , C08F26/12 , C08F30/08 , C08F226/12 , C08F230/08 , G02B1/04 , G02C7/04 , G02C7/06
摘要： PURPOSE: To cost effectively produce a bifocal contact lens which makes it possible to obtain a sharp visual field in both near and far sight and has oxygen permeability and the resistance to protein deposition. CONSTITUTION: The far sight part and near sight part of this bifocal contact lens consist of materials having different refractive indices. This far sight part has Dk of at least 10×10 and the near sight part has the refractive index higher than the refractive index thereof. The far sight part is formed as a crosslinking copolymer having a refractive index of

2. 发明专利

JPH04312462A DISPENSER 失效
公开(公告)号：JPH04312462A
公开(公告)日：1992-11-04
申请号：JP3202092
申请日：1992-02-19
申请人： PILKINGTON VISIONCARE INC
发明人： CASTILLO BRADLEY EDWARD , TUNGOL JOSEPH ERWIN , LITZAW EDGAR MARTIN
IPC分类号： A61J1/05 , A61J1/14 , B05B11/00 , B05B11/04 , B65D47/20 , B65D51/16 , B65D83/14
摘要： PURPOSE: To provide a dispenser having a valve means which enables supply of an aseptic solution from an aseptic container while keeping the remaining solution aseptic. CONSTITUTION: A valve means for controlling the supply of an aseptic solution from a container is provided with a solution outlet means (11) and an air inlet opening part (13) having a filter film (7) for filtering air advancing to a container. When supplying a solution, a force is applied to the container to achieves this supply and causes the solution outlet meansto an air inlet opening part (13). When the force is removed,a partial vacuum is formed in the container to close thesolution outlet means (13) while air is sucked into thecontainer through the air inlet opening part (13) and thefilter film (7).

3. 发明专利

JPH0565422A POLYMER ARTICLE 失效
公开(公告)号：JPH0565422A
公开(公告)日：1993-03-19
申请号：JP230892
申请日：1992-01-09
申请人： PILKINGTON VISIONCARE INC
发明人： SHIEDO HAARAN ASHIKARI , SHIYAO CHIYAN JIEN , HAAMAN HAINRITSUHI NIIDORINGAA
IPC分类号： C08F20/22 , C08F20/26 , C08F220/22 , C08F246/00 , C08L101/00 , G02B1/04 , G02C7/04

4. 发明专利

JPH04300154A REINFORCED THERMOPLASTIC RESIN PART FOR LENS OF EYE 失效
公开(公告)号：JPH04300154A
公开(公告)日：1992-10-23
申请号：JP28309991
申请日：1991-10-29
申请人： PILKINGTON VISIONCARE INC
发明人： DON EICHI ROTENBAAGU , RONARUDO TEII HISUROTSUPU , MIRUTON KOREMAN
IPC分类号： B24B13/005
摘要： PURPOSE: To reduce the extent of the wearing and damage given to finishing and brightening machines by forming the components used in the formation of a finished or semi-finished ophthalmic lens from carbon fiber reinforcing crystalline thermoplastic resin including specific rate of carbon fiber. CONSTITUTION: This lens block 10 comprising plastic material molded by an injection molding machine has a recessed front surface 12 framed by a ring-like peripheral end portion 14, a series of outside ribs 18 and rear face 16 including a recess. A plurality of the radially facing outside ribs 18 extend around the outer periphery of the rear surface 16, and a recess 20 is formed between each rib 18. The block 10 is formed with a plurality of cylindrical holes 42 in the rear surface 16, and a metal finishing center 44 is press-fitted in each hole 42. In addition, this block 10 is formed from carbon fiber reinforcing crystalline thermoplastic resin including specific rate of carbon fiber containing at least 30% by weight carbon fiber based on the total weight of the component. In this case, polyester and polyamide are used for this resin.

5. 发明专利

JPH04264517A CONTACT LENS 失效
公开(公告)号：JPH04264517A
公开(公告)日：1992-09-21
申请号：JP28145891
申请日：1991-10-28
申请人： PILKINGTON VISIONCARE INC
发明人： JIYON EMU EBUANSU , PURAFURU DOSHII , ASOKU TAKURAA , SHII EDOWAADO UIRIAMUSU
IPC分类号： B29C39/02 , B29C33/42 , B29C39/10 , B29C39/12 , B29C39/22 , B29C39/26 , B29D11/00 , B29L11/00 , G02C7/02 , G02C7/04
摘要： PURPOSE: To form a contact lens, especially, the one adding a dark color ring. CONSTITUTION: A contact lens is provided with a pupil area 5 which extends to a center axis and adds an area directly surrounding the periphery of the center axis, an iris area 6 adding the area surrounding the periphery of the pupil area 5 and the periphery area which adds the area surrounding the periphery of the iris area 6 and also extends to the edge of the contact lens 1. A dark color band 4 for substantially absorbing light is provided in the area which is directly adjacent to the iris area 6 and the periphery of the contact lens 1 and also extends to the periphery.

6. 发明专利

JPH04226856A METHOD AND APPARATUS FOR POLISHING LENS 失效
公开(公告)号：JPH04226856A
公开(公告)日：1992-08-17
申请号：JP10831791
申请日：1991-04-15
申请人： PILKINGTON VISIONCARE INC
发明人： SUTEFUAN KURAN
IPC分类号： B24B13/04 , B24B13/06
摘要： PURPOSE: To make a lens having desired bottom curve and cross curve by a circular cup-shaped diamond tool by even an operator who is not so skilled by utilizing a numerical control and without requiring a complicated setting means. CONSTITUTION: A diamond tool 75 is located so as to make a desired combination of a bottom surface curvature and a cross curvature in a lens semifinished product 80 and the positioning of the diamond tool 75 is performed by a cross sliding body 74 and a bottom surface sliding body 73 which are capable of freely moving during the grinding of both of the surfaces. During a grinding work, a grinding angle is stationarily measured and the diamond tool 75 is maintained at a desired distance from a grinding rotary shaft for making a required bottom surface at a desired effective head angle. By changing a head angle of the tool 75 by adjusting the cross sliding body 74 and/or the bottom surface sliding body 73 and making an instantaneous head angle a certain specified value in any state of a grinding work during a grinding process, a desired cross curvature is held constant during the grinding work.

7. 发明专利

JPH04135153A INJECTION MOLDING PLASTIC LAP 失效
公开(公告)号：JPH04135153A
公开(公告)日：1992-05-08
申请号：JP41810090
申请日：1990-12-28
申请人： PILKINGTON VISIONCARE INC
发明人： DON EICHI ROOTENBAAGU , MIRUTON EFU HOITSUTOMAASHIYU
IPC分类号： B24B13/01 , B24B37/00
摘要： PURPOSE: To reduce weight of a lap, to reduce the manufacturing cost, and to facilitate manufacture by forming a main body as an integral injection- moldings of a polymer reinforced by fiber and/or an inorganic substance. CONSTITUTION: A lens polishing lap 10 is composed of a main body 12 which has the front side part and the rear side part and is integrally injection-molded by a polymer reinforced by fiber and/or an inorganic substance. A front face of this lap 10 curves, and is suitable for receiving a polishing pad. The rear face of the lap 10 is also constituted by having the skeletal rib structure part 19 having projecting plural mutually connected ribs 20, 22, 24, 26. The polymer suitable for forming this lap 10 contains various crystalline polymers and copolymers having adequate chemical resistance, strength, rigidity and thermal resistance. Thus, the plastic lap 10 can be accurately/quickly/inexpensively manufactured by integral injection molding, and weight can also be reduced.

8. 发明专利

JPH04310354A DEVICE THAT IS USED FOR MANUFACTURING OF CONTACT LENS 失效
公开(公告)号：JPH04310354A
公开(公告)日：1992-11-02
申请号：JP3087092
申请日：1992-02-18
申请人： PILKINGTON VISIONCARE INC
发明人： BARII CHIEN , PIITAA RANTSU , MAIKERU DEII JIEIMUZU , KUREON SURIITO
IPC分类号： B23B5/00 , B23Q17/22 , B23Q17/24 , B24B13/00 , B24B13/01 , B24B13/04
摘要： PURPOSE: To provide a device for solving a problem about calibration to a lathe of a cutter. CONSTITUTION: A device to be used for manufacturing contact lens with a lathe, especially a device for calibration of a lathe cutter 6d in a removable fitting block 6 is provided with a frame 1, a positioning means 5 for accurately positioning the fitting block 6 and two mono-scopes 7 for accurately positioning the lathe cutter 6d fitted to the frame 1 in a three-dimensional space. The positioning means 5 and the mono-scope 7 can be adjusted in relation to each other.

9. 发明专利

JPH04301424A ANNULAR LENS MOLDING DIE ARBOR 失效
公开(公告)号：JPH04301424A
公开(公告)日：1992-10-26
申请号：JP31695991
申请日：1991-11-29
申请人： PILKINGTON VISIONCARE INC
发明人： AIJII BURUUKAA , JIYON SATSUTON TEETO
IPC分类号： B29C33/42 , B24B13/005 , B29C45/26 , B29D11/00 , B29L11/00
摘要： PURPOSE: To manufacture a toric lens casting mold having a prism ballast oriented properly with respect to the cylinder axis of the toric surfaces by transferring the toric basic curve cutting process, the measuring process and the matching process from a cutting operator to the preliminary automatic injection molding procedures. CONSTITUTION: An arbor is formed of a hollow top section 10 and a hollow bottom section 11 separated each other by a separating material 12. An optical lens semi-finished product 13 is molded on the top section 10 and a curing cup-shaped container is provided thereon. The hollow bottom section 11 is provided with the taper functioning as a lathe mounting member and matching with the matching taper of a lathe spud. A precise toric basic curve 15 is formed on the bottom of the cup 10 on the upper face of the separating member 12. The lens semi-finished product is retained firmly by a lens-cup-shaped mold 10, and the lens semi-finished product and a plastic lens cup-shaped member are cut simultaneously in the process of lathe cutting for mechanical processing and forming a front optical face.

10. 发明专利

JPH04265710A MANUFACTURE OF CONTACT LENS 失效
公开(公告)号：JPH04265710A
公开(公告)日：1992-09-21
申请号：JP28297791
申请日：1991-10-29
申请人： PILKINGTON VISIONCARE INC
发明人： JIYON EMU EBUANSU , ASOKU TAKURAA
IPC分类号： B29C39/02 , B29C33/42 , B29C39/10 , B29C39/12 , B29C39/22 , B29C39/26 , B29D11/00 , B29L11/00 , G02C7/02 , G02C7/04
摘要： PURPOSE: To provide a method for manufacturing a contact lens having structural patterns of an iris which give a natural external appearance different in color without depending on the structure of the iris of a natural eye. CONSTITUTION: A method for manufacturing, by molding, a contact lens having structural patterns of an iris regarding mold surfaces, wherein at least two different designs are provided on molding surfaces 3 and 8 for forming all patterns by using a mold having a female mold 1 and a male mold 2 and these designs provided are transferred onto surfaces of the contact lens coming into contact with the molding surfaces in processes of molding and curing thereof.

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