BE569498A - - Google Patents

Info

Publication number
BE569498A
BE569498A BE569498DA BE569498A BE 569498 A BE569498 A BE 569498A BE 569498D A BE569498D A BE 569498DA BE 569498 A BE569498 A BE 569498A
Authority
BE
Belgium
Application number
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.)
Publication of BE569498A publication Critical patent/BE569498A/xx

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
BE569498D 1957-07-18 BE569498A (ja�@�@)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE569498A true BE569498A (ja�@�@)

Family

ID=19750932

Family Applications (1)

Application Number Title Priority Date Filing Date
BE569498D BE569498A (ja�@�@) 1957-07-18

Country Status (4)

Country Link
BE (1) BE569498A (ja�@�@)
CH (1) CH366597A (ja�@�@)
DE (1) DE1793020U (ja�@�@)
GB (1) GB883618A (ja�@�@)

Also Published As

Publication number Publication date
DE1793020U (de) 1959-08-06
GB883618A (en) 1961-12-06
CH366597A (de) 1963-01-15

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