FR676679A - Porte-radiations - Google Patents

Porte-radiations

Info

Publication number
FR676679A
FR676679A FR676679DA FR676679A FR 676679 A FR676679 A FR 676679A FR 676679D A FR676679D A FR 676679DA FR 676679 A FR676679 A FR 676679A
Authority
FR
France
Prior art keywords
radiation holder
holder
radiation
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.)
Societe des Etablissements Gaumont
Original Assignee
Societe des Etablissements Gaumont
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 Societe des Etablissements Gaumont filed Critical Societe des Etablissements Gaumont
Application granted granted Critical
Publication of FR676679A publication Critical patent/FR676679A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • 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
    • 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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
FR676679D 1928-09-28 1928-09-28 Porte-radiations Expired FR676679A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR676679T 1928-09-28

Publications (1)

Publication Number Publication Date
FR676679A true FR676679A (fr) 1930-02-26

Family

ID=9020024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR676679D Expired FR676679A (fr) 1928-09-28 1928-09-28 Porte-radiations

Country Status (2)

Country Link
FR (1) FR676679A (fr)
GB (1) GB320019A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747917C (de) * 1939-07-19 1944-10-20 Optisches Beleuchtungssystem fuer Bildwerfer
DD153933A1 (de) * 1980-10-31 1982-02-10 Ludwig Meier Optisches system zur diaprojektion
GB8716285D0 (en) * 1987-07-10 1987-08-19 Medical Res Council Light collecting device
DE10109592C2 (de) * 2001-02-28 2003-10-30 Zeiss Carl Jena Gmbh Anordnung zum Erzeugen eines leuchtenden Feldes

Also Published As

Publication number Publication date
GB320019A (en) 1930-12-18

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