GB1005482A - Improvements in or relating to electron tubes for detecting infra-red radiation - Google Patents
Improvements in or relating to electron tubes for detecting infra-red radiationInfo
- Publication number
- GB1005482A GB1005482A GB10404/64A GB1040464A GB1005482A GB 1005482 A GB1005482 A GB 1005482A GB 10404/64 A GB10404/64 A GB 10404/64A GB 1040464 A GB1040464 A GB 1040464A GB 1005482 A GB1005482 A GB 1005482A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- electrode
- red radiation
- infra
- electrical resistance
- 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
- 230000005855 radiation Effects 0.000 title abstract 6
- 239000000463 material Substances 0.000 abstract 4
- 238000010894 electron beam technology Methods 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 1
- 229920002689 polyvinyl acetate Polymers 0.000 abstract 1
- 239000011118 polyvinyl acetate Substances 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/39—Charge-storage screens
- H01J29/45—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen
- H01J29/458—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen pyroelectrical targets; targets for infrared or ultraviolet or X-ray radiations
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Resistance Heating (AREA)
- Radiation Pyrometers (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
1,005,482. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 12, 1964 [March 15, 1963], No. 10404/64. Heading H1D. An electron tube for detecting infra-red radiation has a target screen 8 sensitive to infrared radiation and comprising a thin layer 9 of a material having a temperature-dependent electrical resistance supported by a support 10 and provided with an electrode 11, layer 9 being in the form of a film or foil of a polymerized material of low thermal conductivity, the specific electrical resistance (#) of the material being between 10<SP>6</SP> ohm/cm, and 10<SP>16</SP> ohm/cm., and the thermal electrical resistance variation (1/p #p/#T) per ‹C. being at least 5 per cent in a temperature range between 0‹ C. and 100‹ C. As shown, glass envelope 1 with window 2 contains an electron gun 3 and electrode system 4 terminated by a grid 5. The tube is surrounded by focusing and deflating coils (not shown) for electron beam 7 emitted from cathode 6 of gun 3 and scanning screen 8. Electrode 11 is connected to metal ring 12, signal resistor 13 and direct voltage source 14. During operation of the tube, infra-red radiation 15 is projected through window 2 on to screen 8, and by absorption in either electrode 11 or layer 9 or both is converted into heat. As a result the temperature of layer 9 is locally increased and hence the electrical resistance of layer 9 in the direction of thickness is reduced. When layer 9 is scanned by electron beam 7 the local reduction of its resistance shows itself as a corresponding electric signal across resistor 13. Layer 9 may be of polyacrylonitrile, polyvinyl acetate, polyvinyl cyanurate, polyphosphonitrile chloride or a polychelate. Layer 9 may also contain a filler material which absorbs infra-red radiation and/or is electrically conductive. Electrode 11 may be of aluminium, gold or silver and it may be coated on its side remote from layer 9 with a thin layer which absorbs infra-red radiation and may be a silicate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR928163A FR1359355A (en) | 1963-03-15 | 1963-03-15 | Radiation sensitive target and device incorporating such a target |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1005482A true GB1005482A (en) | 1965-09-22 |
Family
ID=8799358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10404/64A Expired GB1005482A (en) | 1963-03-15 | 1964-03-12 | Improvements in or relating to electron tubes for detecting infra-red radiation |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3278783A (en) |
| JP (1) | JPS4212099B1 (en) |
| DE (1) | DE1489148C3 (en) |
| FR (1) | FR1359355A (en) |
| GB (1) | GB1005482A (en) |
| NL (1) | NL6402482A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3546520A (en) * | 1967-12-20 | 1970-12-08 | Bell Telephone Labor Inc | Vidicon target comprising infrared absorber |
| US3808494A (en) * | 1968-12-26 | 1974-04-30 | Matsushita Electric Ind Co Ltd | Flexible channel multiplier |
| US3769096A (en) * | 1971-03-12 | 1973-10-30 | Bell Telephone Labor Inc | Pyroelectric devices |
| US3928768A (en) * | 1974-09-09 | 1975-12-23 | Philips Corp | Thermal imaging tube having a pyroelectric target and annular potential stabilizing electrode |
| US4317063A (en) * | 1978-10-28 | 1982-02-23 | Plessey Handel Und Investments Ag | Pyroelectric detectors |
| US5017784A (en) * | 1985-03-11 | 1991-05-21 | Savin Corporation | Thermal detector |
| US5629665A (en) * | 1995-11-21 | 1997-05-13 | Kaufmann; James | Conducting-polymer bolometer |
-
1963
- 1963-03-12 JP JP1360864A patent/JPS4212099B1/ja active Pending
- 1963-03-15 FR FR928163A patent/FR1359355A/en not_active Expired
-
1964
- 1964-03-05 US US349714A patent/US3278783A/en not_active Expired - Lifetime
- 1964-03-11 NL NL6402482A patent/NL6402482A/xx unknown
- 1964-03-12 DE DE1489148A patent/DE1489148C3/en not_active Expired
- 1964-03-12 GB GB10404/64A patent/GB1005482A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3278783A (en) | 1966-10-11 |
| DE1489148A1 (en) | 1969-05-14 |
| JPS4212099B1 (en) | 1967-07-10 |
| NL6402482A (en) | 1964-09-16 |
| DE1489148B2 (en) | 1973-03-01 |
| DE1489148C3 (en) | 1973-09-13 |
| FR1359355A (en) | 1964-04-24 |
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