GB1096909A - An infra-red photo-detector - Google Patents
An infra-red photo-detectorInfo
- Publication number
- GB1096909A GB1096909A GB4628765A GB4628765A GB1096909A GB 1096909 A GB1096909 A GB 1096909A GB 4628765 A GB4628765 A GB 4628765A GB 4628765 A GB4628765 A GB 4628765A GB 1096909 A GB1096909 A GB 1096909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- infra
- red
- layer
- reflective
- visible
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 239000005083 Zinc sulfide Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 1
- 229910001634 calcium fluoride Inorganic materials 0.000 abstract 1
- 229910052732 germanium Inorganic materials 0.000 abstract 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 abstract 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/61—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing fluorine, chlorine, bromine, iodine or unspecified halogen elements
- C09K11/615—Halogenides
- C09K11/616—Halogenides with alkali or alkaline earth metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
- F21K2/005—Non-electric light sources using luminescence; Light sources using electrochemiluminescence excited by infrared radiation using up-conversion
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
An infra-red photo-detector includes a phosphor layer comprising powdered monocrystalline calcium fluoride doped with 1% by weight praesodymium which may be suspended in methyl methacrylate to form a layer 0.01-0.2 inch thick and supported on a glass, polystyrene or polyethylene terephthalate support, and a second layer of material reflecting to either infra-red or visible light, or to both. The reflective layer may be a thin slice of silicon or germanium transparent to infra-red but reflecting to visible light. Alternatively, the reflecting layer may be transparent to visible but reflective to infra-red radiation, e.g. a stack of quarter wavelength thick layers of alternately zinc sulphide (high refractive index) and magnesium fluoride (low refractive index). In a further embodiment, the phosphor layer may be sandwiched between two layers, the first being infra-red transparent and visible reflective, and the second vice versa. Alternatively, the phosphor layer may be mounted on a support reflective to both visible and infra-red, e.g. an aluminium film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4628765A GB1096909A (en) | 1965-11-02 | 1965-11-02 | An infra-red photo-detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4628765A GB1096909A (en) | 1965-11-02 | 1965-11-02 | An infra-red photo-detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1096909A true GB1096909A (en) | 1967-12-29 |
Family
ID=10440621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4628765A Expired GB1096909A (en) | 1965-11-02 | 1965-11-02 | An infra-red photo-detector |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1096909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8445866B2 (en) | 2009-12-17 | 2013-05-21 | Honeywell International Inc. | Refractive index matched phosphors and substrates for security applications |
-
1965
- 1965-11-02 GB GB4628765A patent/GB1096909A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8445866B2 (en) | 2009-12-17 | 2013-05-21 | Honeywell International Inc. | Refractive index matched phosphors and substrates for security applications |
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