JPS55132221A - Manufacture of plastic lens - Google Patents

Manufacture of plastic lens

Info

Publication number
JPS55132221A
JPS55132221A JP4060379A JP4060379A JPS55132221A JP S55132221 A JPS55132221 A JP S55132221A JP 4060379 A JP4060379 A JP 4060379A JP 4060379 A JP4060379 A JP 4060379A JP S55132221 A JPS55132221 A JP S55132221A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
lens
ultraviolet
rays
material
mold
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.)
Pending
Application number
JP4060379A
Other versions
JPS6362373B2 (en )
Inventor
Yoshinobu Murakami
Toru Tamura
Original Assignee
Matsushita Electric Ind Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • B29D11/00009Production of simple or compound lenses
    • B29D11/00432Auxiliary operations, e.g. machines for filling the moulds
    • B29D11/00442Curing the lens material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00Optical elements, e.g. lenses, prisms
    • B29L2011/0016Lenses

Abstract

PURPOSE:To manufacture a lens of high optical accuracy with high yield, by filling a mold of desired lens shape with a raw liquid plastic material which can be hardened by the action of ultraviolet rays and by irradiating the material with ultraviolet rays. CONSTITUTION:A raw liquid plastic material 1, which can be hardened by ultraviolet rays, is filled in a mold 4 which has a desired lens shape. The material is hardened at -10--50 deg.C while ultraviolet rays are irradiated upon the material. A plastic lens is thus molded. For example, a liquid resin 1 is supplied from a feeder 2 into a glass mold 4 while the resin is always slightly pressurized. After that, both the sides of the glass mold 4 are irradiated with ultraviolet rays from a radiation source 5. After molding is completed, the cock 3 for the feeder 2 is shut off. The closed faces 6 of the mold 4 are opened toward both the sides of that a molded convex lens is picked out.
JP4060379A 1979-04-03 1979-04-03 Expired JPS6362373B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4060379A JPS6362373B2 (en) 1979-04-03 1979-04-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4060379A JPS6362373B2 (en) 1979-04-03 1979-04-03

Publications (2)

Publication Number Publication Date
JPS55132221A true true JPS55132221A (en) 1980-10-14
JPS6362373B2 JPS6362373B2 (en) 1988-12-02

Family

ID=12585083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4060379A Expired JPS6362373B2 (en) 1979-04-03 1979-04-03

Country Status (1)

Country Link
JP (1) JPS6362373B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382902A (en) * 1980-02-28 1983-05-10 Alcon Pharmaceuticals Limited Method for molding contact lenses using ultraviolet energy
JPS59141A (en) * 1982-06-24 1984-01-05 Mitsubishi Electric Corp Transmission screen
JPS625819A (en) * 1985-07-02 1987-01-12 Showa Denko Kk Reactive injection molding
EP0322353A2 (en) * 1987-12-21 1989-06-28 Matsushita Electric Industrial Co., Ltd. Method and apparatus for producing optical element
US4879318A (en) * 1986-01-28 1989-11-07 Ophthalmic Research Group International, Inc. Plastic lens composition and method for the production thereof
JPH01286808A (en) * 1988-05-13 1989-11-17 Matsushita Electric Ind Co Ltd Molding method of plastic lens and its device
US4983335A (en) * 1985-12-03 1991-01-08 Matsushita Electrical Industrial Co., Ltd. Method for producing transparent plastic article

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5357847A (en) * 1976-11-05 1978-05-25 Seiko Epson Corp Lens
JPS53121642A (en) * 1977-03-31 1978-10-24 Ito Kougaku Kougiyou Kk Production method of

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5357847A (en) * 1976-11-05 1978-05-25 Seiko Epson Corp Lens
JPS53121642A (en) * 1977-03-31 1978-10-24 Ito Kougaku Kougiyou Kk Production method of

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382902A (en) * 1980-02-28 1983-05-10 Alcon Pharmaceuticals Limited Method for molding contact lenses using ultraviolet energy
JPS59141A (en) * 1982-06-24 1984-01-05 Mitsubishi Electric Corp Transmission screen
JPS625819A (en) * 1985-07-02 1987-01-12 Showa Denko Kk Reactive injection molding
US4983335A (en) * 1985-12-03 1991-01-08 Matsushita Electrical Industrial Co., Ltd. Method for producing transparent plastic article
US4879318A (en) * 1986-01-28 1989-11-07 Ophthalmic Research Group International, Inc. Plastic lens composition and method for the production thereof
EP0322353A2 (en) * 1987-12-21 1989-06-28 Matsushita Electric Industrial Co., Ltd. Method and apparatus for producing optical element
JPH01286808A (en) * 1988-05-13 1989-11-17 Matsushita Electric Ind Co Ltd Molding method of plastic lens and its device

Also Published As

Publication number Publication date Type
JP1701436C (en) grant
JPS6362373B2 (en) 1988-12-02 grant

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