FR66734E - Light concentrator for fixed or cinematographic projection devices - Google Patents

Light concentrator for fixed or cinematographic projection devices

Info

Publication number
FR66734E
FR66734E FR66734DA FR66734E FR 66734 E FR66734 E FR 66734E FR 66734D A FR66734D A FR 66734DA FR 66734 E FR66734 E FR 66734E
Authority
FR
France
Prior art keywords
fixed
projection devices
light concentrator
cinematographic projection
cinematographic
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
Francois-Marie-Paul Heliard
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 FR66734E publication Critical patent/FR66734E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR66734D 1954-07-13 1954-07-13 Light concentrator for fixed or cinematographic projection devices Expired FR66734E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR66734T 1954-07-13

Publications (1)

Publication Number Publication Date
FR66734E true FR66734E (en) 1957-08-19

Family

ID=8699024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR66734D Expired FR66734E (en) 1954-07-13 1954-07-13 Light concentrator for fixed or cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR66734E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758633A1 (en) * 1997-01-23 1998-07-24 Thomson Multimedia Sa Light ray concentrator of specific shape

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758633A1 (en) * 1997-01-23 1998-07-24 Thomson Multimedia Sa Light ray concentrator of specific shape

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