FR1267883A - Improvements in the manufacture of ophthalmic lenses in thermoplastic materials - Google Patents

Improvements in the manufacture of ophthalmic lenses in thermoplastic materials

Info

Publication number
FR1267883A
FR1267883A FR829913A FR829913A FR1267883A FR 1267883 A FR1267883 A FR 1267883A FR 829913 A FR829913 A FR 829913A FR 829913 A FR829913 A FR 829913A FR 1267883 A FR1267883 A FR 1267883A
Authority
FR
France
Prior art keywords
manufacture
thermoplastic materials
ophthalmic lenses
ophthalmic
lenses
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.)
Expired
Application number
FR829913A
Other languages
French (fr)
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.)
LENTILLES OPHTALMIQUES RATIONN
Original Assignee
LENTILLES OPHTALMIQUES RATIONN
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 LENTILLES OPHTALMIQUES RATIONN filed Critical LENTILLES OPHTALMIQUES RATIONN
Priority to FR829913A priority Critical patent/FR1267883A/en
Application granted granted Critical
Publication of FR1267883A publication Critical patent/FR1267883A/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
    • B29D11/00009—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
    • 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
    • B29D11/00538—Feeding arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
FR829913A 1960-06-14 1960-06-14 Improvements in the manufacture of ophthalmic lenses in thermoplastic materials Expired FR1267883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR829913A FR1267883A (en) 1960-06-14 1960-06-14 Improvements in the manufacture of ophthalmic lenses in thermoplastic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR829913A FR1267883A (en) 1960-06-14 1960-06-14 Improvements in the manufacture of ophthalmic lenses in thermoplastic materials

Publications (1)

Publication Number Publication Date
FR1267883A true FR1267883A (en) 1961-07-28

Family

ID=8733347

Family Applications (1)

Application Number Title Priority Date Filing Date
FR829913A Expired FR1267883A (en) 1960-06-14 1960-06-14 Improvements in the manufacture of ophthalmic lenses in thermoplastic materials

Country Status (1)

Country Link
FR (1) FR1267883A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100590A (en) * 1988-10-27 1992-03-31 Essilor International Cie Generale D'optique Method of forming an opthalmic lens from a synthetic material blank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100590A (en) * 1988-10-27 1992-03-31 Essilor International Cie Generale D'optique Method of forming an opthalmic lens from a synthetic material blank

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