GB984936A - Electron discharge device including a photoemissive layer - Google Patents
Electron discharge device including a photoemissive layerInfo
- Publication number
- GB984936A GB984936A GB3486661A GB3486661A GB984936A GB 984936 A GB984936 A GB 984936A GB 3486661 A GB3486661 A GB 3486661A GB 3486661 A GB3486661 A GB 3486661A GB 984936 A GB984936 A GB 984936A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- substrate
- discharge device
- electron discharge
- device including
- 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
- 239000000758 substrate Substances 0.000 abstract 4
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 229910001202 Cs alloy Inorganic materials 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 229910001245 Sb alloy Inorganic materials 0.000 abstract 1
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract 1
- 238000005422 blasting Methods 0.000 abstract 1
- 229910052792 caesium Inorganic materials 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 238000003486 chemical etching Methods 0.000 abstract 1
- 239000011022 opal Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/34—Photo-emissive cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/34—Photoemissive electrodes
- H01J2201/342—Cathodes
- H01J2201/3421—Composition of the emitting surface
- H01J2201/3426—Alkaline metal compounds, e.g. Na-K-Sb
Landscapes
- Gas-Filled Discharge Tubes (AREA)
Abstract
984,936. Cathode-ray tubes; cathode materials. FERNSEH G.m.b.H. Sept. 28, 1961 [Oct. 12, 1960], No. 34866/61. Heading H1D. An electron discharge device has a photoemissive layer 3 arranged to be illuminated through a transparent substrate 2 carrying the layer, wherein at least one surface of the substrate is treated to scatter incident light. The substrate is preferably of glass and forms part of the vacuum envelope of the device. The surface is treated by sand- or shot-blasting or by chemical etching. Alternatively, the surface of the substrate upon which the photo-emissive layer is applied may be previously coated with a layer of opal glass. Suitable transparent photo-cathodes consist of alloys of antimony and caesium, or antimony, potassium, sodium and caesium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0032321 | 1960-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB984936A true GB984936A (en) | 1965-03-03 |
Family
ID=7094579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3486661A Expired GB984936A (en) | 1960-10-12 | 1961-09-28 | Electron discharge device including a photoemissive layer |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB984936A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998013857A1 (en) * | 1996-09-26 | 1998-04-02 | Btg International Limited | Radiation transducers |
-
1961
- 1961-09-28 GB GB3486661A patent/GB984936A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998013857A1 (en) * | 1996-09-26 | 1998-04-02 | Btg International Limited | Radiation transducers |
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