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GB320783A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB320783A
GB320783A GB3185528A GB3185528A GB320783A GB 320783 A GB320783 A GB 320783A GB 3185528 A GB3185528 A GB 3185528A GB 3185528 A GB3185528 A GB 3185528A GB 320783 A GB320783 A GB 320783A
Authority
GB
United Kingdom
Prior art keywords
relating
electric discharge
discharge tubes
helium
yellow
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
GB3185528A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB3185528A priority Critical patent/GB320783A/en
Publication of GB320783A publication Critical patent/GB320783A/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope

Landscapes

  • Discharge Lamp (AREA)

Abstract

320,783. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken.). Nov. 1, 1928. Vacuum tubes.-A discharge lamp for providing a yellow light has a filling of helium and an envelope of violet-absorbing or yellow vitreous material. The helium may be at a pressure of 9 mm. and may contain other gases or vapours in small quantity.
GB3185528A 1928-11-01 1928-11-01 Improvements in or relating to electric discharge tubes Expired GB320783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3185528A GB320783A (en) 1928-11-01 1928-11-01 Improvements in or relating to electric discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3185528A GB320783A (en) 1928-11-01 1928-11-01 Improvements in or relating to electric discharge tubes

Publications (1)

Publication Number Publication Date
GB320783A true GB320783A (en) 1929-10-24

Family

ID=10329394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3185528A Expired GB320783A (en) 1928-11-01 1928-11-01 Improvements in or relating to electric discharge tubes

Country Status (1)

Country Link
GB (1) GB320783A (en)

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