GB534468A - Improvements in and relating to the transformation of the frequency of radiant energy - Google Patents
Improvements in and relating to the transformation of the frequency of radiant energyInfo
- Publication number
- GB534468A GB534468A GB2276339A GB2276339A GB534468A GB 534468 A GB534468 A GB 534468A GB 2276339 A GB2276339 A GB 2276339A GB 2276339 A GB2276339 A GB 2276339A GB 534468 A GB534468 A GB 534468A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- grid
- cathode
- infra
- employed
- 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
- 230000009466 transformation Effects 0.000 title 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2231/00—Cathode ray tubes or electron beam tubes
- H01J2231/50—Imaging and conversion tubes
- H01J2231/50005—Imaging and conversion tubes characterised by form of illumination
- H01J2231/5001—Photons
- H01J2231/50015—Light
- H01J2231/50026—Infrared
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
534,468. Discharge lamps. REIN, A. Aug. 5, 1939, No. 22763. [Classes 39 (i) and 40 (iii)] For viewing objects by infra-red light a gas is employed which has been so activated by an electric discharge that when the atoms absorb energy of a low frequency they radiate it at a higher. For this purpose mercury vapour is employed at a pressure of about “ mm. It is contained in a tube 1 fitted with an anode 2, an indirectly heated cathode 3 and a grid 4, the anode being about two volts positive to the cathode and the grid about 7. The grid is about 1 mm from the cathode: and the anode about 40. The tube: is enclosed in an asbestos-lined casing maintained at 140‹ F, provided with an aperture covered with an infra-red filter and a viewing aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2276339A GB534468A (en) | 1939-08-05 | 1939-08-05 | Improvements in and relating to the transformation of the frequency of radiant energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2276339A GB534468A (en) | 1939-08-05 | 1939-08-05 | Improvements in and relating to the transformation of the frequency of radiant energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB534468A true GB534468A (en) | 1941-03-07 |
Family
ID=10184687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2276339A Expired GB534468A (en) | 1939-08-05 | 1939-08-05 | Improvements in and relating to the transformation of the frequency of radiant energy |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB534468A (en) |
-
1939
- 1939-08-05 GB GB2276339A patent/GB534468A/en not_active Expired
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