JPS5749526A - Molding and correction of plastic lens - Google Patents

Molding and correction of plastic lens

Info

Publication number
JPS5749526A
JPS5749526A JP12492080A JP12492080A JPS5749526A JP S5749526 A JPS5749526 A JP S5749526A JP 12492080 A JP12492080 A JP 12492080A JP 12492080 A JP12492080 A JP 12492080A JP S5749526 A JPS5749526 A JP S5749526A
Authority
JP
Japan
Prior art keywords
lens
plastic
plastic lens
molding
thin piece
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
Application number
JP12492080A
Other languages
Japanese (ja)
Other versions
JPS5948735B2 (en
Inventor
Ryoichi Kitahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical 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
Application filed by Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP12492080A priority Critical patent/JPS5948735B2/en
Publication of JPS5749526A publication Critical patent/JPS5749526A/en
Publication of JPS5948735B2 publication Critical patent/JPS5948735B2/en
Expired legal-status Critical Current

Links

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
    • B29D11/0073—Optical laminates

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To improve size accuracy of the lens by complementing contraction of the plastic lens by placing a thin piece of same material as the lens on the curved face of the plastic lens and heat fusing and press bonding. CONSTITUTION:The plastic lens 31 molded by injection molding or cast molding is placed in the stationary mold 33 and the plastic thin piece 34 of the same material as the lens 31 is placed on the upper face of the lens 31. And the mobile mold 32 in which the predetermined curved face 32a of the lens is shaped is lowered, heated and pressurized, the plastic thin piece 34 is heated, fused and press bonded. By this, contraction of the plastic lens molded by injection molding or cast molding is complemented, then size accuracy of the plastic lens can be improved.
JP12492080A 1980-09-08 1980-09-08 Plastic lens molding correction method Expired JPS5948735B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12492080A JPS5948735B2 (en) 1980-09-08 1980-09-08 Plastic lens molding correction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12492080A JPS5948735B2 (en) 1980-09-08 1980-09-08 Plastic lens molding correction method

Publications (2)

Publication Number Publication Date
JPS5749526A true JPS5749526A (en) 1982-03-23
JPS5948735B2 JPS5948735B2 (en) 1984-11-28

Family

ID=14897401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12492080A Expired JPS5948735B2 (en) 1980-09-08 1980-09-08 Plastic lens molding correction method

Country Status (1)

Country Link
JP (1) JPS5948735B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941301U (en) * 1982-09-07 1984-03-16 株式会社リコー plate lens
JPS62260103A (en) * 1986-05-07 1987-11-12 Toshiba Corp Lens and its preparation
JPS6347703A (en) * 1986-08-14 1988-02-29 Ricoh Co Ltd Molding method for lens
WO1993022130A1 (en) * 1992-04-27 1993-11-11 Kabushiki Kaisha Asahi Optical Method of correcting the shape of thermoset resin lens for spectacles and support tool for shape correction in said method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5941301U (en) * 1982-09-07 1984-03-16 株式会社リコー plate lens
JPS62260103A (en) * 1986-05-07 1987-11-12 Toshiba Corp Lens and its preparation
JPS6347703A (en) * 1986-08-14 1988-02-29 Ricoh Co Ltd Molding method for lens
WO1993022130A1 (en) * 1992-04-27 1993-11-11 Kabushiki Kaisha Asahi Optical Method of correcting the shape of thermoset resin lens for spectacles and support tool for shape correction in said method

Also Published As

Publication number Publication date
JPS5948735B2 (en) 1984-11-28

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