FR1226981A - Lampe électrique de projection - Google Patents

Lampe électrique de projection

Info

Publication number
FR1226981A
FR1226981A FR797103A FR797103A FR1226981A FR 1226981 A FR1226981 A FR 1226981A FR 797103 A FR797103 A FR 797103A FR 797103 A FR797103 A FR 797103A FR 1226981 A FR1226981 A FR 1226981A
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
FR797103A
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
Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR1226981A publication Critical patent/FR1226981A/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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/202—Incandescent light sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
FR797103A 1958-06-16 1959-06-10 Lampe électrique de projection Expired FR1226981A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US742384A US2904714A (en) 1958-06-16 1958-06-16 Electric lamp

Publications (1)

Publication Number Publication Date
FR1226981A true FR1226981A (fr) 1960-08-18

Family

ID=24984617

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797103A Expired FR1226981A (fr) 1958-06-16 1959-06-10 Lampe électrique de projection

Country Status (5)

Country Link
US (1) US2904714A (fr)
CH (1) CH367647A (fr)
FR (1) FR1226981A (fr)
GB (1) GB884000A (fr)
NL (1) NL6606385A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086516A (en) * 1959-04-27 1963-04-23 Engelhard Hanovia Inc Surgeon's headlamp
US2973443A (en) * 1959-06-10 1961-02-28 Gen Electric Electric incandescent lamp
US3082345A (en) * 1960-04-28 1963-03-19 Westinghouse Electric Corp Electric lamp
US4536832A (en) * 1982-07-01 1985-08-20 Altman Stage Lighting Co., Inc. Replaceable light source assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17037E (en) * 1928-07-17 Assionobs
US1190071A (en) * 1914-11-16 1916-07-04 Waldo P Adams Apparatus for projecting radiant energy.
BE391856A (fr) * 1931-11-16
US2064252A (en) * 1932-07-30 1936-12-15 Fortney Brauddus Brock Incandescent lamp and projection device
BE518131A (fr) * 1952-03-04

Also Published As

Publication number Publication date
US2904714A (en) 1959-09-15
GB884000A (en) 1961-12-06
NL6606385A (fr) 1966-08-25
CH367647A (de) 1963-02-28

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