GB1088382A - Objectives for infra-red radiation - Google Patents
Objectives for infra-red radiationInfo
- Publication number
- GB1088382A GB1088382A GB648965A GB648965A GB1088382A GB 1088382 A GB1088382 A GB 1088382A GB 648965 A GB648965 A GB 648965A GB 648965 A GB648965 A GB 648965A GB 1088382 A GB1088382 A GB 1088382A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sapphire
- objectives
- feb
- microns
- filter
- 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 1
- 229910052594 sapphire Inorganic materials 0.000 abstract 3
- 239000010980 sapphire Substances 0.000 abstract 3
- UKUVVAMSXXBMRX-UHFFFAOYSA-N 2,4,5-trithia-1,3-diarsabicyclo[1.1.1]pentane Chemical compound S1[As]2S[As]1S2 UKUVVAMSXXBMRX-UHFFFAOYSA-N 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
Abstract
1,088,382. Infrared objectives. SOCIETE EUROPEENNE DE MATERIALS SPECIAUX. Feb. 15, 1965 [Feb. 14, 1964], No.6489/65. Heading G2J. An objective for use in the infrared, particularly in the range of 3-5 microns, comprises at least three lenses of which at least one is made of arsenic trisulphide and another of sapphire. As shown, the first two are of arsenic trisulphide and the third of sapphire. A window F1 of silicon has an anti-reflecting coating and a filter F2 of sapphire has interference coatings on its two faces to produce low pass and high pass characteristics respectively such that the spectral range passed is 3À2-4À8 microns. The filter F2 may be maintained at a low temperature. The diaphragms D1-D5 are of polished metal and surface treated to obtain high reflective power to reduce heat emission therefrom. Optical data are provided for the example shown.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR963865A FR1393576A (en) | 1964-02-14 | 1964-02-14 | Realization of an objective for the medium infrared |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1088382A true GB1088382A (en) | 1967-10-25 |
Family
ID=8823221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB648965A Expired GB1088382A (en) | 1964-02-14 | 1965-02-15 | Objectives for infra-red radiation |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1258622B (en) |
| FR (1) | FR1393576A (en) |
| GB (1) | GB1088382A (en) |
| NL (1) | NL6501533A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3633985A (en) * | 1969-07-28 | 1972-01-11 | Comp Generale Electricite | Concentration objective composed of four lenses |
| US4427259A (en) | 1982-08-23 | 1984-01-24 | Rockwell International Corporation | Selectable field-of-view infrared lens |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62237413A (en) * | 1986-04-09 | 1987-10-17 | Konika Corp | Collimator lens |
| DE4327656A1 (en) * | 1993-08-17 | 1995-02-23 | Steinheil Optronik Gmbh | Infrared lens |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE947339C (en) * | 1943-07-24 | 1956-08-16 | Heraeus Gmbh W C | Resistant interference light filter |
| US2788708A (en) * | 1953-07-28 | 1957-04-16 | Baird Associates Inc | Optical apparatus for collecting radiations from a field of view |
-
1964
- 1964-02-14 FR FR963865A patent/FR1393576A/en not_active Expired
-
1965
- 1965-02-08 NL NL6501533A patent/NL6501533A/xx unknown
- 1965-02-12 DE DES95433A patent/DE1258622B/en active Pending
- 1965-02-15 GB GB648965A patent/GB1088382A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3633985A (en) * | 1969-07-28 | 1972-01-11 | Comp Generale Electricite | Concentration objective composed of four lenses |
| US4427259A (en) | 1982-08-23 | 1984-01-24 | Rockwell International Corporation | Selectable field-of-view infrared lens |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1393576A (en) | 1965-03-26 |
| NL6501533A (en) | 1965-08-16 |
| DE1258622B (en) | 1968-01-11 |
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