US2122860A - Light sensitive tube - Google Patents
Light sensitive tube Download PDFInfo
- Publication number
- US2122860A US2122860A US94589A US9458936A US2122860A US 2122860 A US2122860 A US 2122860A US 94589 A US94589 A US 94589A US 9458936 A US9458936 A US 9458936A US 2122860 A US2122860 A US 2122860A
- Authority
- US
- United States
- Prior art keywords
- light sensitive
- layer
- tube
- light
- sensitive tube
- 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 - Lifetime
Links
- 229910052787 antimony Inorganic materials 0.000 description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 4
- 229910052797 bismuth Inorganic materials 0.000 description 4
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 4
- 229910052701 rubidium Inorganic materials 0.000 description 4
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
- H01J40/06—Photo-emissive cathodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/941—Solid state alloying, e.g. diffusion, to disappearance of an original layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12681—Ga-, In-, Tl- or Group VA metal-base component
Definitions
- photoelectric tube equipped with a thin light sensitive layer of this type is particularly suitable for television purposes, since this tube permits the construction of a television apparatus which is adapted for taking television images at day light.
- the envelope I of the tube contains an anode 2 and a photoelectric cathode 3.
- the latter may consist of a layer of antimony or bismuth and a layer of rubidium or caeslum alloyed together.
- the photoelectrlc cathode 25 is ⁇ mounted on the lnnergwall of the envelope I.
- the method for producing the-light sensitive layer of the invention is asfollo'wsz A thin layer of antimony o r bismuth is precipitated by evaporation upon a suitable carrier. layer then preferably is treated with oxygen or its homosufficiently thin to remain pervious to light.
- caeslum or rubidium is precipitated by evaporation upon the antimony or bismuth layer respectively prepared in the described manner.
- the caesium or rubidium respectively ls caused to enter into the antimony or bismuthlayer respectively and forms an alloy.
- the composite coating produced in this manner is extremely sensitive to light and possesses a sensitiveness covering-the entire visible range of the spectrum.
- a photoelectrlc cathode comprising a bismuth layer and a caeslum layer alloyed together.
Landscapes
- Primary Cells (AREA)
Description
I July 5, 1938. i5. GRLlcl-l LIGHT SENSITIVE TUBE Filed Aug. 6, 1936 mvENToR Daal @k/z'c- ATTORNEY.
`Patented July 5, 1938 UNITED STATES PATENT GFFICE l 2,122,860 LIGHT SENSITIVE TUBE Paul Grlich, Dresden, Germany, assignor to Zeiss Ikon Aktiengesellschaft, Dresden, Germany Application August s, 1936, serial No. 94,589
InG
ermany August 8, 1935- 2 claims. (ci. 25o-27.5)
photoelectric tube equipped with a thin light sensitive layer of this type is particularly suitable for television purposes, since this tube permits the construction of a television apparatus which is adapted for taking television images at day light.
rThe accompanying drawing illustrates diagrammatically a photoelectric tube provided with a p hotoelectrc cathode in accordance with the present invention.
. The envelope I of the tube contains an anode 2 and a photoelectric cathode 3. The latter may consist of a layer of antimony or bismuth and a layer of rubidium or caeslum alloyed together. In the present instance the photoelectrlc cathode 25 is` mounted on the lnnergwall of the envelope I. The method for producing the-light sensitive layer of the invention is asfollo'wsz A thin layer of antimony o r bismuth is precipitated by evaporation upon a suitable carrier. layer then preferably is treated with oxygen or its homosufficiently thin to remain pervious to light. A
violet portion of lthe spectrum.
logues, whereby the oxygen is adsorbed on the layer. Subsequent to this operation caeslum or rubidium is precipitated by evaporation upon the antimony or bismuth layer respectively prepared in the described manner. By a heattreatment of the layers, the caesium or rubidium respectively ls caused to enter into the antimony or bismuthlayer respectively and forms an alloy. The composite coating produced in this manner is extremely sensitive to light and possesses a sensitiveness covering-the entire visible range of the spectrum.
If the light sensitive layer is not required to be pervious to light, then the above elements may be precipitated to greater thickness. However, care must be taken always that the alloy will be produced. The employment'of rubidium in place of caeslum will produce a tube whose highest light sensitiveness is displaced more toward the ultra- 20 What I claim as my invention is:
1. A photoelectrlc cathode comprising a bismuth layer and a caeslum layer alloyed together.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2122860X | 1935-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2122860A true US2122860A (en) | 1938-07-05 |
Family
ID=7985998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US94589A Expired - Lifetime US2122860A (en) | 1935-08-08 | 1936-08-06 | Light sensitive tube |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2122860A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2431401A (en) * | 1940-06-25 | 1947-11-25 | Rca Corp | Method of manufacturing photoelectric tubes |
| US2441810A (en) * | 1943-01-01 | 1948-05-18 | Rca Corp | Phototube and method of manufacture |
| US2582964A (en) * | 1949-03-08 | 1952-01-22 | Technicolor Motion Picture | Photoelectric sound reproduction |
| US2744838A (en) * | 1951-11-03 | 1956-05-08 | Gen Electric | Electron discharge device cathode and method of making same |
| US2779888A (en) * | 1952-12-16 | 1957-01-29 | Rca Corp | Photosensitive electrode and method for producing same |
-
1936
- 1936-08-06 US US94589A patent/US2122860A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2431401A (en) * | 1940-06-25 | 1947-11-25 | Rca Corp | Method of manufacturing photoelectric tubes |
| US2441810A (en) * | 1943-01-01 | 1948-05-18 | Rca Corp | Phototube and method of manufacture |
| US2582964A (en) * | 1949-03-08 | 1952-01-22 | Technicolor Motion Picture | Photoelectric sound reproduction |
| US2744838A (en) * | 1951-11-03 | 1956-05-08 | Gen Electric | Electron discharge device cathode and method of making same |
| US2779888A (en) * | 1952-12-16 | 1957-01-29 | Rca Corp | Photosensitive electrode and method for producing same |
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