FR859877A - Mode of production of projection relief - Google Patents

Mode of production of projection relief

Info

Publication number
FR859877A
FR859877A FR859877DA FR859877A FR 859877 A FR859877 A FR 859877A FR 859877D A FR859877D A FR 859877DA FR 859877 A FR859877 A FR 859877A
Authority
FR
France
Prior art keywords
production
mode
projection relief
relief
projection
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)
Inventor
Robert Marrou
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 filed Critical
Application granted granted Critical
Publication of FR859877A publication Critical patent/FR859877A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR859877D 1939-06-01 1939-06-01 Mode of production of projection relief Expired FR859877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR859877T 1939-06-01

Publications (1)

Publication Number Publication Date
FR859877A true FR859877A (en) 1940-12-31

Family

ID=9330692

Family Applications (1)

Application Number Title Priority Date Filing Date
FR859877D Expired FR859877A (en) 1939-06-01 1939-06-01 Mode of production of projection relief

Country Status (1)

Country Link
FR (1) FR859877A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836101A (en) * 1955-09-01 1958-05-27 Swart Dev Company De Optical elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836101A (en) * 1955-09-01 1958-05-27 Swart Dev Company De Optical elements

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