FR1021632A - Lanterne de projection - Google Patents

Lanterne de projection

Info

Publication number
FR1021632A
FR1021632A FR1021632DA FR1021632A FR 1021632 A FR1021632 A FR 1021632A FR 1021632D A FR1021632D A FR 1021632DA FR 1021632 A FR1021632 A FR 1021632A
Authority
FR
France
Prior art keywords
projection lantern
lantern
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
English (en)
Inventor
Pierre-Guido Gagliardi
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 FR1021632A publication Critical patent/FR1021632A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1021632D 1950-07-07 1950-07-07 Lanterne de projection Expired FR1021632A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1021632T 1950-07-07

Publications (1)

Publication Number Publication Date
FR1021632A true FR1021632A (fr) 1953-02-20

Family

ID=9577098

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1021632D Expired FR1021632A (fr) 1950-07-07 1950-07-07 Lanterne de projection

Country Status (1)

Country Link
FR (1) FR1021632A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997711A (en) * 1959-05-22 1961-08-22 Wiley Electronics Company Spherical reflector and composite illuminator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997711A (en) * 1959-05-22 1961-08-22 Wiley Electronics Company Spherical reflector and composite illuminator

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