FR75896E - Lampe électrique de projection - Google Patents

Lampe électrique de projection

Info

Publication number
FR75896E
FR75896E FR797491A FR797491A FR75896E FR 75896 E FR75896 E FR 75896E FR 797491 A FR797491 A FR 797491A FR 797491 A FR797491 A FR 797491A FR 75896 E FR75896 E FR 75896E
Authority
FR
France
Prior art keywords
projection lamp
electric projection
electric
lamp
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
FR797491A
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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
Priority claimed from US742384A external-priority patent/US2904714A/en
Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes
Priority to FR797491A priority Critical patent/FR75896E/fr
Application granted granted Critical
Publication of FR75896E publication Critical patent/FR75896E/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
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR797491A 1958-06-16 1959-06-15 Lampe électrique de projection Expired FR75896E (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR797491A FR75896E (fr) 1958-06-16 1959-06-15 Lampe électrique de projection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US742384A US2904714A (en) 1958-06-16 1958-06-16 Electric lamp
FR797491A FR75896E (fr) 1958-06-16 1959-06-15 Lampe électrique de projection

Publications (1)

Publication Number Publication Date
FR75896E true FR75896E (fr) 1961-08-18

Family

ID=26184111

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797491A Expired FR75896E (fr) 1958-06-16 1959-06-15 Lampe électrique de projection

Country Status (1)

Country Link
FR (1) FR75896E (fr)

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