GB1440674A - Pyroelectric effect devices - Google Patents
Pyroelectric effect devicesInfo
- Publication number
- GB1440674A GB1440674A GB2455773A GB2455773A GB1440674A GB 1440674 A GB1440674 A GB 1440674A GB 2455773 A GB2455773 A GB 2455773A GB 2455773 A GB2455773 A GB 2455773A GB 1440674 A GB1440674 A GB 1440674A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- pyroelectric
- infra
- absorbent
- red
- 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
- 239000000463 material Substances 0.000 abstract 5
- 230000002745 absorbent Effects 0.000 abstract 3
- 239000002250 absorbent Substances 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 229910018487 Ni—Cr Inorganic materials 0.000 abstract 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- XKENYNILAAWPFQ-UHFFFAOYSA-N dioxido(oxo)germane;lead(2+) Chemical compound [Pb+2].[O-][Ge]([O-])=O XKENYNILAAWPFQ-UHFFFAOYSA-N 0.000 abstract 2
- 229920001558 organosilicon polymer Polymers 0.000 abstract 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 abstract 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical class CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000002033 PVDF binder Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000008021 deposition Effects 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
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 1
- 230000005641 tunneling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
- H10N15/10—Thermoelectric devices using thermal change of the dielectric constant, e.g. working above and below the Curie point
Landscapes
- Radiation Pyrometers (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
1440674 Pyroelectric devices; image pick-up tubes DEFENCE SECRETARY OF STATE FOR 22 May 1974 [23 May 1973] 24557/73 Headings H1K and H1D In a pyroelectric device, e.g. as shown in Fig. 1, an infra-red detector, to compensate for insensitivity due to inadequate absorption in the 8 to 13 micron infra-red band by plate 1 of pyroelectric material, a layer 2 of an organic or organosilicon polymer which is more absorbent in the said band is in thermal contact with plate 1. The pyroelectric material may be single crystal or polycrystalline lead germanate or lead germanate silicate, and has an average thickness not greater than 100 microns. Single crystal material is cut with the major surfaces perpendicular to the trigonal C-axis. The absorbent layer has an average thickness less than that of the pyroelectric layer and may be p.v.c. or polyvinylidene fluoride applied as a solution or as a melt, or polymers of cyclohexane, acetone, hexene-1, diethyl ethers or hexamethyldisiloxane applied by vapour or plasma deposition. The charge on pyroelectric layer 1 resulting from irradiation appears on absorbent layer 2 by conduction or tunneling and is detected by conventional means connected to opaque nickel-chromium electrode 3 and transparent gold electrode 5. The device may alternatively be the target of an infra-red camera tube, as shown in Fig. 5, wherein layer 21 is the pyroelectric material, layer 22 the abosorbent material and layer 23 the single nickel-chromium electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2455773A GB1440674A (en) | 1973-05-23 | 1973-05-23 | Pyroelectric effect devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2455773A GB1440674A (en) | 1973-05-23 | 1973-05-23 | Pyroelectric effect devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1440674A true GB1440674A (en) | 1976-06-23 |
Family
ID=10213512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2455773A Expired GB1440674A (en) | 1973-05-23 | 1973-05-23 | Pyroelectric effect devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1440674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3220497A1 (en) * | 1981-06-05 | 1983-03-24 | N.V. Philips' Gloeilampenfabrieken, 5621 Eindhoven | PYROELECTRIC DETECTOR |
-
1973
- 1973-05-23 GB GB2455773A patent/GB1440674A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3220497A1 (en) * | 1981-06-05 | 1983-03-24 | N.V. Philips' Gloeilampenfabrieken, 5621 Eindhoven | PYROELECTRIC DETECTOR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |