FR984811A - optical elements - Google Patents

optical elements

Info

Publication number
FR984811A
FR984811A FR984811DA FR984811A FR 984811 A FR984811 A FR 984811A FR 984811D A FR984811D A FR 984811DA FR 984811 A FR984811 A FR 984811A
Authority
FR
France
Prior art keywords
optical elements
optical
elements
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
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of FR984811A publication Critical patent/FR984811A/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
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • B29D11/00442—Curing the lens material

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
FR984811D 1948-04-30 1949-04-19 optical elements Expired FR984811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB984811X 1948-04-30

Publications (1)

Publication Number Publication Date
FR984811A true FR984811A (en) 1951-07-11

Family

ID=10845294

Family Applications (1)

Application Number Title Priority Date Filing Date
FR984811D Expired FR984811A (en) 1948-04-30 1949-04-19 optical elements

Country Status (1)

Country Link
FR (1) FR984811A (en)

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