FR1101758A - Light collecting device for projection and similar devices - Google Patents

Light collecting device for projection and similar devices

Info

Publication number
FR1101758A
FR1101758A FR1101758DA FR1101758A FR 1101758 A FR1101758 A FR 1101758A FR 1101758D A FR1101758D A FR 1101758DA FR 1101758 A FR1101758 A FR 1101758A
Authority
FR
France
Prior art keywords
projection
collecting device
light collecting
similar devices
similar
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
Serge Clave
Marcel Clave
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 FR1101758A publication Critical patent/FR1101758A/en
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)
FR1101758D 1954-03-23 1954-03-23 Light collecting device for projection and similar devices Expired FR1101758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1101758T 1954-03-23

Publications (1)

Publication Number Publication Date
FR1101758A true FR1101758A (en) 1955-10-11

Family

ID=9621209

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1101758D Expired FR1101758A (en) 1954-03-23 1954-03-23 Light collecting device for projection and similar devices

Country Status (1)

Country Link
FR (1) FR1101758A (en)

Similar Documents

Publication Publication Date Title
FR1103549A (en) Shielding device
CH328186A (en) Distribution device
FR1134077A (en) Contact device
FR1162592A (en) Advanced filtering device for vacuum cleaners and similar devices
FR1105660A (en) Advertising device
FR1100883A (en) Capping device
FR1190080A (en) Screen device for magnifying devices
FR1101758A (en) Light collecting device for projection and similar devices
FR1112313A (en) Capping device
FR1111255A (en) Overcapping device
FR1137732A (en) Spray device
FR1136911A (en) Spray device
FR1109095A (en) Dust evacuation device
FR1173433A (en) Lighting device for projection devices
FR1112227A (en) Anti-glare device
FR1098089A (en) Shielding device
FR1117346A (en) Tilting device
FR1137149A (en) Braking device for tillers and similar devices
FR1121508A (en) Capping device
FR1101522A (en) Advertising device
FR1114906A (en) Braking device
FR1130202A (en) Welding device
FR1123102A (en) Welding device
FR1171942A (en) Disconnector and disconnecting device
FR1097008A (en) Cleaning device