GB883618A - Improvements in or relating to sodium-vapour discharge tubes - Google Patents

Improvements in or relating to sodium-vapour discharge tubes

Info

Publication number
GB883618A
GB883618A GB2263958A GB2263958A GB883618A GB 883618 A GB883618 A GB 883618A GB 2263958 A GB2263958 A GB 2263958A GB 2263958 A GB2263958 A GB 2263958A GB 883618 A GB883618 A GB 883618A
Authority
GB
United Kingdom
Prior art keywords
vessel
axis
limbs
reflector
tube
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
GB2263958A
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 GB883618A publication Critical patent/GB883618A/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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/025—Associated optical elements
    • 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
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/325—U-shaped lamps

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
GB2263958A 1957-07-18 1958-07-15 Improvements in or relating to sodium-vapour discharge tubes Expired GB883618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL219119 1957-07-18

Publications (1)

Publication Number Publication Date
GB883618A true GB883618A (en) 1961-12-06

Family

ID=19750932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2263958A Expired GB883618A (en) 1957-07-18 1958-07-15 Improvements in or relating to sodium-vapour discharge tubes

Country Status (4)

Country Link
BE (1) BE569498A (fr)
CH (1) CH366597A (fr)
DE (1) DE1793020U (fr)
GB (1) GB883618A (fr)

Also Published As

Publication number Publication date
DE1793020U (de) 1959-08-06
CH366597A (de) 1963-01-15
BE569498A (fr)

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