FR877454A - élément optique - Google Patents

élément optique

Info

Publication number
FR877454A
FR877454A FR877454DA FR877454A FR 877454 A FR877454 A FR 877454A FR 877454D A FR877454D A FR 877454DA FR 877454 A FR877454 A FR 877454A
Authority
FR
France
Prior art keywords
optical element
optical
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR877454A publication Critical patent/FR877454A/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
    • B29D11/0073—Optical laminates
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
FR877454D 1939-10-21 1941-12-04 élément optique Expired FR877454A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL877454X 1939-10-21

Publications (1)

Publication Number Publication Date
FR877454A true FR877454A (fr) 1942-12-08

Family

ID=19851447

Family Applications (1)

Application Number Title Priority Date Filing Date
FR877454D Expired FR877454A (fr) 1939-10-21 1941-12-04 élément optique

Country Status (1)

Country Link
FR (1) FR877454A (fr)

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