GB1193518A - Electron Discharge Device for Generating Spectral Radiation - Google Patents
Electron Discharge Device for Generating Spectral RadiationInfo
- Publication number
- GB1193518A GB1193518A GB39903/67A GB3990367A GB1193518A GB 1193518 A GB1193518 A GB 1193518A GB 39903/67 A GB39903/67 A GB 39903/67A GB 3990367 A GB3990367 A GB 3990367A GB 1193518 A GB1193518 A GB 1193518A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- recess
- diameter
- excitation
- wavelength
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/066—Cold cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
- H01J2893/0065—Electrode systems
- H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
Landscapes
- Electron Sources, Ion Sources (AREA)
- Spectrometry And Color Measurement (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1,193,518. Glow discharge lamps. WESTINGHOUSE ELECTRIC CORP. 31 Aug., 1967 [12 Sept., 1966], No. 39903/67. Heading H1D. A radiation source for producing a particular spectral line characteristic of the cathode material, is characterized in that the cathode 22, Fig. 2, is provided with a recess having a crosssectional area of less than 0À049 square inch so that the line corresponding to excitation of neutral atoms sputtered from the cathode has a greater intensity than the line corresponding to excitation of ionized atoms. The recess may be cylindrical and have a diameter A between “ and 1/64 inch, the pressure of the filling varying from 2 mm. for maximum diameter to 100 mm at minimum diameter of the cathode recess. The length B of the recess should be at least half the diameter A, and the filling may be of neon, argon, or helium. Insulating discs 38 and 44 serve to confine the discharge, and the leads 30 to the anode 28 are surrounded by insulating sleeves 46-48. The cathode may be of nickel which produces radiation at a wavelength of 2320 Š, and the envelope includes a window 16 transparent to this wavelength.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57882766A | 1966-09-12 | 1966-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1193518A true GB1193518A (en) | 1970-06-03 |
Family
ID=24314480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39903/67A Expired GB1193518A (en) | 1966-09-12 | 1967-08-31 | Electron Discharge Device for Generating Spectral Radiation |
Country Status (3)
Country | Link |
---|---|
US (1) | US3476970A (en) |
DE (1) | DE1589414B1 (en) |
GB (1) | GB1193518A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1599595A (en) * | 1977-01-24 | 1981-10-07 | Hitachi Ltd | Spectral sources |
US4341976A (en) * | 1980-03-05 | 1982-07-27 | Alpha-Omega Development, Inc. | Display system |
US4376256A (en) * | 1980-03-05 | 1983-03-08 | Alpha-Omega Development, Inc. | Segment display system |
US4356428A (en) * | 1980-03-05 | 1982-10-26 | Intent Patent, A.G. | Lighting system |
US4320321A (en) * | 1980-03-25 | 1982-03-16 | Alexandrov Vitaly V | Hollow-cathode gas-discharge tube |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2433809A (en) * | 1947-02-01 | 1947-12-30 | Sylvania Electric Prod | Crater lamp |
GB896744A (en) * | 1959-10-19 | 1962-05-16 | Commw Scient Ind Res Org | Improvements in and relating to atomic spectral lamps |
US3205388A (en) * | 1960-12-30 | 1965-09-07 | Lany Beatrice Pearson De | Drill hole type cathode with cooling means |
US3242371A (en) * | 1962-03-29 | 1966-03-22 | Hitachi Ltd | Hollow-cathode discharge lamp for emission of atomic resonance lines |
US3183393A (en) * | 1962-04-20 | 1965-05-11 | Westinghouse Electric Corp | Discharge device |
DE1207498B (en) * | 1962-10-15 | 1965-12-23 | Commw Scient Ind Res Org | High intensity atomic spectral lamp |
US3264511A (en) * | 1963-06-20 | 1966-08-02 | Westinghouse Electric Corp | Glow discharge device |
-
1966
- 1966-09-12 US US578827A patent/US3476970A/en not_active Expired - Lifetime
-
1967
- 1967-08-31 GB GB39903/67A patent/GB1193518A/en not_active Expired
- 1967-09-07 DE DE1967W0044740 patent/DE1589414B1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US3476970A (en) | 1969-11-04 |
DE1589414B1 (en) | 1972-06-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |