GB453310A - Improvements in or relating to sources of light - Google Patents

Improvements in or relating to sources of light

Info

Publication number
GB453310A
GB453310A GB24182/35A GB2418235A GB453310A GB 453310 A GB453310 A GB 453310A GB 24182/35 A GB24182/35 A GB 24182/35A GB 2418235 A GB2418235 A GB 2418235A GB 453310 A GB453310 A GB 453310A
Authority
GB
United Kingdom
Prior art keywords
tubes
envelope
light
fluorescent
diameter
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
GB24182/35A
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.)
Claude Paz et Visseaux SA
Original Assignee
Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva
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 Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva filed Critical Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva
Priority to GB24182/35A priority Critical patent/GB453310A/en
Publication of GB453310A publication Critical patent/GB453310A/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
    • H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

453,310. Lamps containing electric discharge tubes. TENNANT, W. J., 111, Hatton Garden, London.-(Soc. Anon. pour les Applications de l'ElectricitÚ et des Gaz Rares, Etablissements Claude-Paz & Silva; 8, Rue Cognac-Jay, Paris) Aug. 29, 1935, No. 24182. [Class 75 (iv)] A source of light of uniform tonality comprises one or more transparent neon tubes and one or more mercury tubes the inner walls of which contain or are coated with fluorescent substances and are therefore opaque to the radiations of the neon tubes, all the tubes being arranged within a cylindrical envelope which disperses the light and is provided with means to avoid on the envelope the colour effect of the fluorescent tubes. For this purpose, the diameter of the envelope may be appreciably larger than the sum of the diameters of the tubes, the fluorescent tubes being spaced away from the inner surface of the envelope. Alternatively, the inside or outside of the envelope may have a narrow opaque band reflecting towards each fluorescent tube, the width of the band preferably being about equal to the diameter of the fluorescent tube. The envelope may comprise a thin layer of opal glass and one or more layers of transparent glass. The colour of the. light may be varied by regulating the current supplied to the various tubes.
GB24182/35A 1935-08-29 1935-08-29 Improvements in or relating to sources of light Expired GB453310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24182/35A GB453310A (en) 1935-08-29 1935-08-29 Improvements in or relating to sources of light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24182/35A GB453310A (en) 1935-08-29 1935-08-29 Improvements in or relating to sources of light

Publications (1)

Publication Number Publication Date
GB453310A true GB453310A (en) 1936-09-09

Family

ID=10207700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24182/35A Expired GB453310A (en) 1935-08-29 1935-08-29 Improvements in or relating to sources of light

Country Status (1)

Country Link
GB (1) GB453310A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749714C (en) * 1937-04-22 1944-12-02 High-pressure mercury lamp with quartz glass vessel and a luminous layer made of a mixture of luminescent materials and arranged in the beam path of the lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749714C (en) * 1937-04-22 1944-12-02 High-pressure mercury lamp with quartz glass vessel and a luminous layer made of a mixture of luminescent materials and arranged in the beam path of the lamp

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