GB454459A - Improvements in or relating to means of illumination comprising a plurality of discharge devices - Google Patents

Improvements in or relating to means of illumination comprising a plurality of discharge devices

Info

Publication number
GB454459A
GB454459A GB22163/35A GB2216335A GB454459A GB 454459 A GB454459 A GB 454459A GB 22163/35 A GB22163/35 A GB 22163/35A GB 2216335 A GB2216335 A GB 2216335A GB 454459 A GB454459 A GB 454459A
Authority
GB
United Kingdom
Prior art keywords
tubes
filled
tube
discharge lamps
electric 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
GB22163/35A
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.)
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 GB22163/35A priority Critical patent/GB454459A/en
Publication of GB454459A publication Critical patent/GB454459A/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
    • H01J61/38—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
    • 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

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

454,459. Lighting systems composed of electric discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and RYDE, J. W., c/o General Electric Co., Ltd., Wembley, Middlesex. Aug. 6, 1935, No. 22163. [Class 75 (iv)] Tubular electric discharge lamps 1, 1<1>, 2, which do not all emit light of the same colour are arranged parallel and adjacent to one another over a substantial part of their length, and at least one of them is enclosed in a substantially coaxial light-diffusing cylinder 3 of greater diameter. The tubes 1, 1<1> may be filled with neon and form two arms bf a single U-tube. The tube 2 may be filled with mercury vapour and argon, and be coated interiorly with willemite to emit green light. The tubes 1, 1<1>, 2 may be of transparent or opal glass. Dimensions are given. Specification 431,408 is referred to.
GB22163/35A 1935-08-06 1935-08-06 Improvements in or relating to means of illumination comprising a plurality of discharge devices Expired GB454459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22163/35A GB454459A (en) 1935-08-06 1935-08-06 Improvements in or relating to means of illumination comprising a plurality of discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22163/35A GB454459A (en) 1935-08-06 1935-08-06 Improvements in or relating to means of illumination comprising a plurality of discharge devices

Publications (1)

Publication Number Publication Date
GB454459A true GB454459A (en) 1936-10-01

Family

ID=10174965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22163/35A Expired GB454459A (en) 1935-08-06 1935-08-06 Improvements in or relating to means of illumination comprising a plurality of discharge devices

Country Status (1)

Country Link
GB (1) GB454459A (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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