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
ultraviolet rays
mold
material
hardened
lens
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
JPS6362373B2 (en) 1988-12-02 grant

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