GB670694A - Improvements in or relating to electrically energized luminous gas devices - Google Patents

Improvements in or relating to electrically energized luminous gas devices

Info

Publication number
GB670694A
GB670694A GB2997347A GB2997347A GB670694A GB 670694 A GB670694 A GB 670694A GB 2997347 A GB2997347 A GB 2997347A GB 2997347 A GB2997347 A GB 2997347A GB 670694 A GB670694 A GB 670694A
Authority
GB
United Kingdom
Prior art keywords
envelopes
gas
filled
envelope
directional array
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
GB2997347A
Inventor
Claude Hamilton Spratt
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.)
CLARENCE PERCY CALLOW
CLAUDE HAMILTON SPRATT
Original Assignee
CLARENCE PERCY CALLOW
CLAUDE HAMILTON SPRATT
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 CLARENCE PERCY CALLOW, CLAUDE HAMILTON SPRATT filed Critical CLARENCE PERCY CALLOW
Priority to GB2997347A priority Critical patent/GB670694A/en
Publication of GB670694A publication Critical patent/GB670694A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/046—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using capacitive means around the vessel

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

670,694. Electric discharge lamps. CALLOW, C. P., and SPRATT, C. H. Dec. 10, 1948 [Nov. 11, 1947], No. 29973/47. Class 39 (i). An electrically energized luminous gas device of the kind comprising a gas-filled translucent envelope or envelopes and means for electrically energizing the contents has the latter formed of a directional array for radiating very highfrequency radio energy and the gas-filled envelope or envelopes disposed remotely from the directional array in the radiation field thereof. In the construction shown in Figs. 1 and 2 the Yagi type directional array comprising a radiator 10 energized from a very highfrequency oscillator 11, a reflector 12 and directors 13 is used for energizing a sign or device comprising a number of gas-filled envelopes 14 formed into the shape of letters and carried on a support 15. The letters may be interchangeable and may be formed from translucent tubes containing neon or may comprise tubes coated with a fluorescent material. A plurality of directional arrays may be arranged so as to direct radio frequency energy towards the same envelope or envelopes. Specification 518,466 is referred to.
GB2997347A 1947-11-11 1947-11-11 Improvements in or relating to electrically energized luminous gas devices Expired GB670694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2997347A GB670694A (en) 1947-11-11 1947-11-11 Improvements in or relating to electrically energized luminous gas devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2997347A GB670694A (en) 1947-11-11 1947-11-11 Improvements in or relating to electrically energized luminous gas devices

Publications (1)

Publication Number Publication Date
GB670694A true GB670694A (en) 1952-04-23

Family

ID=10300199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2997347A Expired GB670694A (en) 1947-11-11 1947-11-11 Improvements in or relating to electrically energized luminous gas devices

Country Status (1)

Country Link
GB (1) GB670694A (en)

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