GB956975A - Improvements in or relating to gas-filled electric incandescent lamps - Google Patents

Improvements in or relating to gas-filled electric incandescent lamps

Info

Publication number
GB956975A
GB956975A GB13014/61A GB1301461A GB956975A GB 956975 A GB956975 A GB 956975A GB 13014/61 A GB13014/61 A GB 13014/61A GB 1301461 A GB1301461 A GB 1301461A GB 956975 A GB956975 A GB 956975A
Authority
GB
United Kingdom
Prior art keywords
filament
bulb
longitudinal axis
screen
parallel
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
GB13014/61A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB956975A publication Critical patent/GB956975A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Resistance Heating (AREA)
GB13014/61A 1960-04-14 1961-04-11 Improvements in or relating to gas-filled electric incandescent lamps Expired GB956975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL250599 1960-04-14

Publications (1)

Publication Number Publication Date
GB956975A true GB956975A (en) 1964-04-29

Family

ID=19752286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13014/61A Expired GB956975A (en) 1960-04-14 1961-04-11 Improvements in or relating to gas-filled electric incandescent lamps

Country Status (5)

Country Link
US (1) US3184629A (cs)
CH (1) CH407319A (cs)
DE (1) DE1240182B (cs)
GB (1) GB956975A (cs)
NL (1) NL112992C (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6607701A (cs) * 1966-06-03 1967-12-04
NL6607700A (cs) * 1966-06-03 1967-12-04

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1635116A (en) * 1925-01-09 1927-07-05 Breuil Winfield R Du Headlight
US2151522A (en) * 1937-09-22 1939-03-21 Westinghouse Electric & Mfg Co Incandescent lamp with means to reduce bulb blackening
US2862125A (en) * 1956-01-06 1958-11-25 Sylvania Electric Prod Heat shield for incandescent lamp
US2973443A (en) * 1959-06-10 1961-02-28 Gen Electric Electric incandescent lamp

Also Published As

Publication number Publication date
DE1240182B (de) 1967-05-11
US3184629A (en) 1965-05-18
NL112992C (cs)
CH407319A (de) 1966-02-15

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