GB952653A - Improvements in or relating to discharge lamps - Google Patents

Improvements in or relating to discharge lamps

Info

Publication number
GB952653A
GB952653A GB3318261A GB3318261A GB952653A GB 952653 A GB952653 A GB 952653A GB 3318261 A GB3318261 A GB 3318261A GB 3318261 A GB3318261 A GB 3318261A GB 952653 A GB952653 A GB 952653A
Authority
GB
United Kingdom
Prior art keywords
channel
shape
crescent
sept
discharge
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
GB3318261A
Inventor
Charles Edington Williams
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3318261A priority Critical patent/GB952653A/en
Publication of GB952653A publication Critical patent/GB952653A/en
Expired legal-status Critical Current

Links

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
    • H01J61/305—Flat vessels or containers
    • H01J61/307—Flat vessels or containers with folded elongated discharge path

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

952,653. Discharge lamps. GENERAL ELECTRIC CO. Ltd. Sept. 10, 1962 [Sept. 15, 1961], No. 33182/61. Heading H1D. In a low-pressure lamp, formed by sealing together two moulded enclosure members 2, 3 to form a tortuous discharge channel, at least part of the wall bounding the channel is inwardly convex on one side, 21, and inwardly concave on the opposite side so that in crosssection the discharge channel is of a crescent or (as illustrated) kidney shape. The channel has an internal phosphor layer, and may have an internal or external reflective metal coating. This shape channel gives a short ion diffusion path, short U.V. radiation path, relatively cool extremities of the channel and hence with mercury vapour lamps a lower mercury vapour pressure, and also reduces glare when viewed from the side, 18. Successive crescent &c. shaped portions may be oppositely directed, and may alternate with portions of circular, semicircular, elliptical or semi-elliptical shape.
GB3318261A 1961-09-15 1961-09-15 Improvements in or relating to discharge lamps Expired GB952653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3318261A GB952653A (en) 1961-09-15 1961-09-15 Improvements in or relating to discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3318261A GB952653A (en) 1961-09-15 1961-09-15 Improvements in or relating to discharge lamps

Publications (1)

Publication Number Publication Date
GB952653A true GB952653A (en) 1964-03-18

Family

ID=10349625

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3318261A Expired GB952653A (en) 1961-09-15 1961-09-15 Improvements in or relating to discharge lamps

Country Status (1)

Country Link
GB (1) GB952653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904864A1 (en) * 1978-02-14 1979-08-16 Philips Nv LOW PRESSURE MERCURY VAPOR DISCHARGE LAMP
EP0738001A1 (en) * 1995-04-10 1996-10-16 General Motors Corporation Neon lamp suitable for automotive vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904864A1 (en) * 1978-02-14 1979-08-16 Philips Nv LOW PRESSURE MERCURY VAPOR DISCHARGE LAMP
EP0738001A1 (en) * 1995-04-10 1996-10-16 General Motors Corporation Neon lamp suitable for automotive vehicles

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