FR926993A - Fabrication d'éléments d'optique - Google Patents

Fabrication d'éléments d'optique

Info

Publication number
FR926993A
FR926993A FR926993DA FR926993A FR 926993 A FR926993 A FR 926993A FR 926993D A FR926993D A FR 926993DA FR 926993 A FR926993 A FR 926993A
Authority
FR
France
Prior art keywords
manufacture
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
English (en)
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 FR926993A publication Critical patent/FR926993A/fr
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
FR926993D 1944-02-04 1946-05-16 Fabrication d'éléments d'optique Expired FR926993A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB926993X 1944-02-04

Publications (1)

Publication Number Publication Date
FR926993A true FR926993A (fr) 1947-10-16

Family

ID=10727897

Family Applications (1)

Application Number Title Priority Date Filing Date
FR926993D Expired FR926993A (fr) 1944-02-04 1946-05-16 Fabrication d'éléments d'optique

Country Status (1)

Country Link
FR (1) FR926993A (fr)

Similar Documents

Publication Publication Date Title
FR975871A (fr) Fabrication d'éléments optiques conformes
FR919657A (fr) émulsions photographiques et leur fabrication
FR1014514A (fr) Perfectionnements à la fabrication de compositions thermoplastiques
FR919006A (fr) Verres d'optique aux fluorures
FR934429A (fr) Fabrication de phosgène
FR952308A (fr) Fabrication d'éléments optiques
FR932891A (fr) Fabrication des nitro-hydrocarbures
FR902768A (fr) Assemblage standard d'éléments moulés
FR1018486A (fr) Fabrication d'éléments optiques axialement symétriques
FR938169A (fr) Fabrication d'éléments au sélénium
FR926993A (fr) Fabrication d'éléments d'optique
FR922376A (fr) Fabrication de savonnettes à aspect amélioré
FR992844A (fr) Palmer optique à cellules photo-électriques
FR907100A (fr) éléments pour constructions légères et isothermes
FR923338A (fr) Fabrication de pyridoacridines
FR923029A (fr) Fabrication de pyridoacridines
FR923312A (fr) Verres d'optique
FR990723A (fr) Fabrication d'éléments optiques opaques
FR992989A (fr) Jumelle à prismes
FR910579A (fr) Poutre de pont
FR905127A (fr) Fabrication d'éléments de construction
FR900946A (fr) Maison démontable composée d'éléments interchangeables
FR918716A (fr) Fabrication de composés nitro-organiques
FR926379A (fr) Fabrication de composés de biguanyle
FR909321A (fr) Perfectionnement apporté à la fabrication des savons