GB2109990B - Incandescent lamp - Google Patents

Incandescent lamp

Info

Publication number
GB2109990B
GB2109990B GB08135141A GB8135141A GB2109990B GB 2109990 B GB2109990 B GB 2109990B GB 08135141 A GB08135141 A GB 08135141A GB 8135141 A GB8135141 A GB 8135141A GB 2109990 B GB2109990 B GB 2109990B
Authority
GB
United Kingdom
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
GB08135141A
Other versions
GB2109990A (en
Inventor
Frank Woodward
Ben Grewcock
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.)
Thorn EMI PLC
Original Assignee
Thorn EMI PLC
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 Thorn EMI PLC filed Critical Thorn EMI PLC
Priority to GB08135141A priority Critical patent/GB2109990B/en
Publication of GB2109990A publication Critical patent/GB2109990A/en
Application granted granted Critical
Publication of GB2109990B publication Critical patent/GB2109990B/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
GB08135141A 1981-11-21 1981-11-21 Incandescent lamp Expired GB2109990B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08135141A GB2109990B (en) 1981-11-21 1981-11-21 Incandescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08135141A GB2109990B (en) 1981-11-21 1981-11-21 Incandescent lamp

Publications (2)

Publication Number Publication Date
GB2109990A GB2109990A (en) 1983-06-08
GB2109990B true GB2109990B (en) 1984-12-12

Family

ID=10526060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08135141A Expired GB2109990B (en) 1981-11-21 1981-11-21 Incandescent lamp

Country Status (1)

Country Link
GB (1) GB2109990B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1265840A (en) * 1985-10-29 1990-02-13 Antonius J. Huijbers Incandescent lamp having a vessel with an annular reflective coating and a filament arranged zigsagwise

Also Published As

Publication number Publication date
GB2109990A (en) 1983-06-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee