FR935630A - Projector lamps improvements - Google Patents

Projector lamps improvements

Info

Publication number: FR935630A
Authority: FR; France
Prior art keywords: projector lamps; projector; lamps; lamps improvements
Prior art date: 1944-11-04
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

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.)

1944-11-04

Filing date

1946-11-07

Publication date

1948-06-24

1946-11-07 Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes

1948-06-24 Application granted granted Critical

1948-06-24 Publication of FR935630A publication Critical patent/FR935630A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers

FR935630D 1944-11-04 1946-11-07 Projector lamps improvements Expired FR935630A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US561974A US2392828A (en)	1944-11-04	1944-11-04	Projection lamp

Publications (1)

Publication Number	Publication Date
FR935630A true FR935630A (en)	1948-06-24

Family

ID=24244280

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR935630D Expired FR935630A (en)	1944-11-04	1946-11-07	Projector lamps improvements

Country Status (3)

Country	Link
US (1)	US2392828A (en)
FR (1)	FR935630A (en)
GB (1)	GB601281A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2596697A (en) *	1947-12-08	1952-05-13	Krefft Hermann Eduard	Electrical discharge lamp
DE919835C (en) *	1951-09-07	1954-11-04	August Rub	Gas discharge light source, especially for optical devices
US2749482A (en) *	1952-01-02	1956-06-05	Fruengel Frank	Electric impulse lamp as transmitter for light-flash signaling system
US2794906A (en) *	1954-06-16	1957-06-04	Harold E Edgerton	Gaseous-discharge apparatus
US3071681A (en) *	1961-01-13	1963-01-01	Honeywell Regulator Co	Photoflash apparatus
DE1264610B (en) *	1965-01-27	1968-03-28	Gen Electric	Reflector lamp
US3325638A (en) *	1965-07-23	1967-06-13	Pfaff & Kendall	Unitized vapor lamp
US3265877A (en) *	1965-07-26	1966-08-09	Gen Electric	Illuminating system
US3986017A (en) *	1975-04-03	1976-10-12	Lawrence Peska Associates, Inc.	Automobile headlight
US4809142A (en) *	1987-09-09	1989-02-28	Seymour Auerbach	Integrated lighting device

1944
- 1944-11-04 US US561974A patent/US2392828A/en not_active Expired - Lifetime
1945
- 1945-10-29 GB GB28517/45A patent/GB601281A/en not_active Expired
1946
- 1946-11-07 FR FR935630D patent/FR935630A/en not_active Expired

Also Published As

Publication number	Publication date
GB601281A (en)	1948-05-03
US2392828A (en)	1946-01-15

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