FR982309A - Incandescent lamp - Google Patents

Incandescent lamp

Info

Publication number
FR982309A
FR982309A FR982309DA FR982309A FR 982309 A FR982309 A FR 982309A FR 982309D A FR982309D A FR 982309DA FR 982309 A FR982309 A FR 982309A
Authority
FR
France
Prior art keywords
incandescent lamp
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR982309A publication Critical patent/FR982309A/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
    • H01K1/00—Details
    • H01K1/40—Leading-in conductors
FR982309D 1948-03-05 1949-03-03 Incandescent lamp Expired FR982309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL270680X 1948-03-05

Publications (1)

Publication Number Publication Date
FR982309A true FR982309A (en) 1951-06-08

Family

ID=19781918

Family Applications (1)

Application Number Title Priority Date Filing Date
FR982309D Expired FR982309A (en) 1948-03-05 1949-03-03 Incandescent lamp

Country Status (7)

Country Link
US (1) US2488751A (en)
BE (1) BE487695A (en)
CH (1) CH270680A (en)
DE (1) DE813278C (en)
FR (1) FR982309A (en)
GB (1) GB657243A (en)
NL (1) NL69920C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561033A (en) * 1950-12-02 1951-07-17 Odds Charles Headlight
US2692347A (en) * 1951-03-28 1954-10-19 Westinghouse Electric Corp Metalized stems for low-pressure discharge tubes
US2859368A (en) * 1951-10-20 1958-11-04 Sylvania Electric Prod Heat lamp
BE518131A (en) * 1952-03-04
US2843778A (en) * 1952-12-22 1958-07-15 Gen Motors Corp Light bulb
US2818521A (en) * 1954-01-14 1957-12-31 Scarborough Associates Inc Lamp
US2766394A (en) * 1955-02-18 1956-10-09 Darsie George Headlight
NL127036C (en) * 1959-06-02 1900-01-01
GB904469A (en) * 1960-02-11 1962-08-29 Thorn Electrical Ind Ltd Improvements in and relating to projection lamps
NL276950A (en) * 1961-04-18
US4227113A (en) * 1978-10-18 1980-10-07 Duro-Test Corporation Incandescent electric lamp with partial light transmitting coating
US5677983A (en) * 1995-01-11 1997-10-14 Nauchno-Proizvodstvennaya Firma "Adonis" Light beam heater with light source and reflector having two ellipsoidal sections and a truncated spherical surface there between

Also Published As

Publication number Publication date
DE813278C (en) 1951-09-10
US2488751A (en) 1949-11-22
CH270680A (en) 1950-09-15
BE487695A (en)
GB657243A (en) 1951-09-12
NL69920C (en)

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