FR643887A - Electric lamp for anti-glare projectors - Google Patents

Electric lamp for anti-glare projectors

Info

Publication number
FR643887A
FR643887A FR643887DA FR643887A FR 643887 A FR643887 A FR 643887A FR 643887D A FR643887D A FR 643887DA FR 643887 A FR643887 A FR 643887A
Authority
FR
France
Prior art keywords
projectors
glare
electric lamp
lamp
electric
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
Antoine-Jean-Baptist Marsat
Alfred Monnier
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 FR643887A publication Critical patent/FR643887A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
FR643887D 1927-04-13 1927-04-13 Electric lamp for anti-glare projectors Expired FR643887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR574066X 1927-04-13

Publications (1)

Publication Number Publication Date
FR643887A true FR643887A (en) 1928-09-25

Family

ID=8952437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR643887D Expired FR643887A (en) 1927-04-13 1927-04-13 Electric lamp for anti-glare projectors

Country Status (2)

Country Link
DE (1) DE574066C (en)
FR (1) FR643887A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441824A (en) * 1943-10-16 1948-05-18 Westinghouse Electric Corp Reflector lamp
US3281620A (en) * 1962-05-16 1966-10-25 Miller Robert Keith Adjustably positionable reflector lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1026427B (en) * 1956-02-06 1958-03-20 Dr Hermann Thomas Headlight bulb with split high beam filament

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441824A (en) * 1943-10-16 1948-05-18 Westinghouse Electric Corp Reflector lamp
US3281620A (en) * 1962-05-16 1966-10-25 Miller Robert Keith Adjustably positionable reflector lamp

Also Published As

Publication number Publication date
DE574066C (en) 1933-04-08

Similar Documents

Publication Publication Date Title
FR706312A (en) Electric gas discharge lamp
FR643887A (en) Electric lamp for anti-glare projectors
FR697876A (en) Electric lamp
FR667037A (en) Socket for electric lamp
FR700077A (en) AC Arc Lamp Projector
FR647246A (en) Electric lamp socket
FR31859E (en) Electric lamp for cinematographic devices
FR614129A (en) Socket for electric tube lamp
FR698114A (en) Reflector for electric lamp
FR622402A (en) Adjustable socket for electric lamp
FR34107E (en) Electric lamp socket
FR612014A (en) Socket for electric lamp
FR32539E (en) Socket for electric lamp
FR27555E (en) Electric lamp for cinematographic devices
FR708250A (en) Electric gas lamp
FR670458A (en) Electric lamp socket
FR635413A (en) Incandescent electric lamp for projection devices
FR642054A (en) Telescopic support for electric lamps
FR687556A (en) Reflective electric lamp
FR637407A (en) Electric lamp
FR639171A (en) Electric arc lamp
FR611726A (en) Electric arc lamp
FR617103A (en) Electric arc lamp
FR623837A (en) Electric arc lamp
FR739783A (en) Electric discharge lamp