GB525608A - Improvements in or relating to electric discharge tubes for the photo-electric transformation of light - Google Patents
Improvements in or relating to electric discharge tubes for the photo-electric transformation of lightInfo
- Publication number
- GB525608A GB525608A GB27622/39A GB2762239A GB525608A GB 525608 A GB525608 A GB 525608A GB 27622/39 A GB27622/39 A GB 27622/39A GB 2762239 A GB2762239 A GB 2762239A GB 525608 A GB525608 A GB 525608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- cathode
- electric
- electrode
- photo
- 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
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
Abstract
525,608. Image intensifiers. MULLARD RADIO VALVE CO., Ltd. Oct. 10, 1939, No. 27622. Convention date, Oct. 13, 1938. [Class 39 (i)] The photo-electric cathode and the fluorescent anode of an image-intensifier are enclosed in a spherical electrode which deflects the cathoderays and focuses them on the anode. The spherical electrode 5 may be formed as a metal lining in the tube 1 which encloses the cathode 2 and anode 3. Windows 10, 11 are provided for admitting light to the cathode and viewing the anode. It is stated that this arrangement permits of considerable reduction of the image, with consequent increase in brightness. This reduction may be carried further by means of an annular electrode 12 at an adjustable potential between those of the anode and cathode, the electrode 5 being at an adjustable negative potential with respect to the cathode. The anode 5 preferable consists of some metal, such as oxidized silver, which will absorb excess of the cµsium employed in sensitizing the cathode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL525608X | 1938-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB525608A true GB525608A (en) | 1940-08-30 |
Family
ID=19787064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27622/39A Expired GB525608A (en) | 1938-10-13 | 1939-10-10 | Improvements in or relating to electric discharge tubes for the photo-electric transformation of light |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2235831A (en) |
| BE (1) | BE436646A (en) |
| FR (1) | FR860807A (en) |
| GB (1) | GB525608A (en) |
| NL (1) | NL54040C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3474275A (en) * | 1966-09-26 | 1969-10-21 | Rca Corp | Image tube having a gating and focusing electrode |
-
0
- NL NL54040D patent/NL54040C/xx active
- BE BE436646D patent/BE436646A/xx unknown
-
1939
- 1939-10-03 US US297652A patent/US2235831A/en not_active Expired - Lifetime
- 1939-10-10 GB GB27622/39A patent/GB525608A/en not_active Expired
- 1939-10-11 FR FR860807D patent/FR860807A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2235831A (en) | 1941-03-25 |
| BE436646A (en) | |
| NL54040C (en) | |
| FR860807A (en) | 1941-01-24 |
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