EP0301560A3 - Gas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive window - Google Patents

Gas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive window Download PDF

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Publication number
EP0301560A3
EP0301560A3 EP88112302A EP88112302A EP0301560A3 EP 0301560 A3 EP0301560 A3 EP 0301560A3 EP 88112302 A EP88112302 A EP 88112302A EP 88112302 A EP88112302 A EP 88112302A EP 0301560 A3 EP0301560 A3 EP 0301560A3
Authority
EP
European Patent Office
Prior art keywords
radiation
vacuum
gas
discharge lamp
gas 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.)
Withdrawn
Application number
EP88112302A
Other languages
German (de)
French (fr)
Other versions
EP0301560A2 (en
Inventor
John N. Driscoll
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.)
Hnu Systems Inc
Original Assignee
Hnu Systems 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 Hnu Systems Inc filed Critical Hnu Systems Inc
Publication of EP0301560A2 publication Critical patent/EP0301560A2/en
Publication of EP0301560A3 publication Critical patent/EP0301560A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

A gas discharge lamp (10) for emitting vacuum UV radiation, comprising a lamp body filled at low pressure with a gas capable of emitting radiation in the vacuum UV range (e.g., argon), electrodes (14, 16) within the lamp body for passing an electric field across the gas, a crystalline window (28) (e.g., lithium fluoride) in the body for transmitting the vacuum UV radiation emitted by the gas, wherein the crystalline window is constructed of a material that, when exposed to the vacuum UV radiation emitted by the gas, forms color centers that block transmission of the radiation through the window, and a bleaching element located within the lamp body for emitting color-center bleaching radiation in response to the electric field without degrading emission of the vacuum UV radiation, the bleaching radiation being in a frequency band (e.g., 5-6 eV) lower than the vacuum UV radiation.
EP88112302A 1987-07-30 1988-07-29 Gas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive window Withdrawn EP0301560A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7975287A 1987-07-30 1987-07-30
US79752 1987-07-30

Publications (2)

Publication Number Publication Date
EP0301560A2 EP0301560A2 (en) 1989-02-01
EP0301560A3 true EP0301560A3 (en) 1990-08-01

Family

ID=22152583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112302A Withdrawn EP0301560A3 (en) 1987-07-30 1988-07-29 Gas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive window

Country Status (3)

Country Link
EP (1) EP0301560A3 (en)
JP (1) JPS6457561A (en)
CA (1) CA1281063C (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374383A (en) * 1966-04-28 1968-03-19 Navy Usa Accumulation means for reduction of sputter in gas-filled, lyman-alpha source tube
SU469166A1 (en) * 1973-07-12 1975-04-30 Предприятие П/Я Р-6681 Hydrogen spectral lamp
SU1108534A1 (en) * 1983-05-26 1984-08-15 Предприятие П/Я А-3609 Gaseous-discharge spectroscopic lamp and process for manufacturing it

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374383A (en) * 1966-04-28 1968-03-19 Navy Usa Accumulation means for reduction of sputter in gas-filled, lyman-alpha source tube
SU469166A1 (en) * 1973-07-12 1975-04-30 Предприятие П/Я Р-6681 Hydrogen spectral lamp
SU1108534A1 (en) * 1983-05-26 1984-08-15 Предприятие П/Я А-3609 Gaseous-discharge spectroscopic lamp and process for manufacturing it

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, week X08, March 31, 1976 DERWENT PUBLICATIONS LTD., London, UK, page SU-R4-2 Abstr. no. 1976-14365X/08, & SU-A1 469 166 ( SHISHATSKAYA et al. ) *

Also Published As

Publication number Publication date
EP0301560A2 (en) 1989-02-01
JPS6457561A (en) 1989-03-03
CA1281063C (en) 1991-03-05

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