GB959276A - Electrodeless discharge lamp apparatus - Google Patents

Electrodeless discharge lamp apparatus

Info

Publication number
GB959276A
GB959276A GB31905/61A GB3190561A GB959276A GB 959276 A GB959276 A GB 959276A GB 31905/61 A GB31905/61 A GB 31905/61A GB 3190561 A GB3190561 A GB 3190561A GB 959276 A GB959276 A GB 959276A
Authority
GB
United Kingdom
Prior art keywords
bulb
discharge
high frequency
krypton
sept
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
GB31905/61A
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of GB959276A publication Critical patent/GB959276A/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
    • H01J65/048—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 an excitation coil

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

959,276. Discharge lamps. VARIAN ASSOCIATES. Sept. 5, 1961 [Sept. 16, 1960], No. 31905/61. Heading H1D. [Also in Divisions G1 and H3] Apparatus for producing a high frequency discharge comprises an electrodeless discharge tube having a bulb 1 of a material exhibiting a high frequency electrical loss and provided with a reservoir chamber 3 containing a vapourproducing substance and a pair of coils 6 surrounding the bulb and adapted, when supplied with electrical oscillations at a suitable frequency, to generate a high frequency field which initiates a discharge in the tube and to heat the bulb walls, the arrangement being such that the discharge intensity is concentrated within a narrow spectral band. The material of the bulb is preferably a borosilicate glass blown to a thickness of 5-10 mils., and a heat-leak path is preferably provided from the reservoir region such as to maintain the region at a temperature which is lower than the discharge temperature. The filling may be krypton at a pressure of 1-3 mms. of mercury with an alkali metal; in a specific example one milligram of ribidium is contained within a bulb of 1 cm. in diameter. Alternatively, krypton-85 may be used with isotopically enriched rubidium. The coils are energized by a high frequency oscillator comprising a pair of triode amplifier tubes cross-coupled through grid-plate capacitors. Specification 959,275 is referred to.
GB31905/61A 1960-09-16 1961-09-05 Electrodeless discharge lamp apparatus Expired GB959276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56412A US3109960A (en) 1960-09-16 1960-09-16 Electrodeless discharge lamp apparatus

Publications (1)

Publication Number Publication Date
GB959276A true GB959276A (en) 1964-05-27

Family

ID=22004223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31905/61A Expired GB959276A (en) 1960-09-16 1961-09-05 Electrodeless discharge lamp apparatus

Country Status (3)

Country Link
US (1) US3109960A (en)
DE (1) DE1179298B (en)
GB (1) GB959276A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246158A (en) * 1961-02-10 1966-04-12 Varian Associates Optical detectors
FR1337423A (en) * 1962-07-31 1963-09-13 Csf Improvements to monochromatic light sources of constant intensity
US3521120A (en) * 1968-03-20 1970-07-21 Gen Electric High frequency electrodeless fluorescent lamp assembly
US3763392A (en) * 1972-01-17 1973-10-02 Charybdis Inc High pressure method for producing an electrodeless plasma arc as a light source
DE2426662A1 (en) * 1973-06-06 1975-01-02 Westinghouse Electric Corp ELECTRODELESS DISCHARGE ARRANGEMENT
US4048541A (en) * 1976-06-14 1977-09-13 Solitron Devices, Inc. Crystal controlled oscillator circuit for illuminating electrodeless fluorescent lamp
US4223250A (en) * 1978-12-22 1980-09-16 Gte Laboratories Incorporated Protective coatings for light sources
US4247800A (en) * 1979-02-02 1981-01-27 Gte Laboratories Incorporated Radioactive starting aids for electrodeless light sources
US4434406A (en) 1981-08-10 1984-02-28 Rockwell International Corporation Lamp housing assembly primarily for the lamp of a rubidium frequency standard
US4485333A (en) * 1982-04-28 1984-11-27 Eg&G, Inc. Vapor discharge lamp assembly
US4763233A (en) * 1986-12-19 1988-08-09 Poyer David D Outdoor marine lighting fixture
US5656189A (en) * 1994-12-02 1997-08-12 Efratom Time And Frequency Products, Inc. Heater controller for atomic frequency standards
US5489821A (en) * 1994-12-27 1996-02-06 Ball Corporation Lamp oscillator for atomic frequency standards
CN103363359B (en) * 2013-07-25 2015-01-14 中国科学院武汉物理与数学研究所 Spectral lamp for rubidium atomic frequency standard

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE477311C (en) * 1926-04-09 1929-06-10 Patra Patent Treuhand Electric gas discharge lamp
US2118452A (en) * 1929-08-14 1938-05-24 Raytheon Mfg Co Electric lamp
US1854912A (en) * 1930-01-18 1932-04-19 Ne Arga Corp Lamp starting device
NL39334C (en) * 1932-07-01
DE735435C (en) * 1940-10-15 1943-05-14 Franz Focke Arrangement for generating light beams by means of gas-filled discharge spaces that are operated with high-frequency current
US2974243A (en) * 1959-11-12 1961-03-07 Space Technology Lab Inc Light source
US2975330A (en) * 1960-06-01 1961-03-14 Varian Associates Electrodeless discharge method and apparatus

Also Published As

Publication number Publication date
US3109960A (en) 1963-11-05
DE1179298B (en) 1964-10-08

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