FR929289A - Incandescent projection lamp with reflector - Google Patents

Incandescent projection lamp with reflector

Info

Publication number
FR929289A
FR929289A FR929289DA FR929289A FR 929289 A FR929289 A FR 929289A FR 929289D A FR929289D A FR 929289DA FR 929289 A FR929289 A FR 929289A
Authority
FR
France
Prior art keywords
reflector
projection lamp
incandescent projection
incandescent
lamp
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)
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.)
Pathe Cinema SA
Original Assignee
Pathe Cinema SA
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 Pathe Cinema SA filed Critical Pathe Cinema SA
Application granted granted Critical
Publication of FR929289A publication Critical patent/FR929289A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H01K1/325—Reflecting coating
    • 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
FR929289D 1941-05-10 1941-05-10 Incandescent projection lamp with reflector Expired FR929289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR929289T 1941-05-10

Publications (1)

Publication Number Publication Date
FR929289A true FR929289A (en) 1947-12-22

Family

ID=9442372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR929289D Expired FR929289A (en) 1941-05-10 1941-05-10 Incandescent projection lamp with reflector

Country Status (3)

Country Link
CH (1) CH226779A (en)
FR (1) FR929289A (en)
GB (1) GB571242A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154572B (en) * 1961-02-07 1963-09-19 Philips Nv Headlights designed as lamps, especially for motor vehicles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763348A (en) * 1972-01-05 1973-10-02 Argus Eng Co Apparatus and method for uniform illumination of a surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154572B (en) * 1961-02-07 1963-09-19 Philips Nv Headlights designed as lamps, especially for motor vehicles

Also Published As

Publication number Publication date
CH226779A (en) 1943-04-30
GB571242A (en) 1945-08-14

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