SU568393A3 - Optical filter - Google Patents
Optical filterInfo
- Publication number
- SU568393A3 SU568393A3 SU6901359990A SU1359990A SU568393A3 SU 568393 A3 SU568393 A3 SU 568393A3 SU 6901359990 A SU6901359990 A SU 6901359990A SU 1359990 A SU1359990 A SU 1359990A SU 568393 A3 SU568393 A3 SU 568393A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- substrate
- optical filter
- film
- temperature range
- metal fluoride
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 3
- 239000000758 substrate Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 229910001515 alkali metal fluoride Inorganic materials 0.000 claims description 2
- 229910001618 alkaline earth metal fluoride Inorganic materials 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- MXCPYJZDGPQDRA-UHFFFAOYSA-N dialuminum;2-acetyloxybenzoic acid;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3].CC(=O)OC1=CC=CC=C1C(O)=O MXCPYJZDGPQDRA-UHFFFAOYSA-N 0.000 claims 1
- 238000002211 ultraviolet spectrum Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- Spectrometry And Color Measurement (AREA)
Description
1one
Известны светофильтры, выполненные в виде плоской пластинки определенной толщины, изготовленной из кристаллов, прозрачных дл рабочей области спектра. Пластонки имеют Ш1оско параллельные отполированные плоскости.Known filters, made in the form of a flat plate of a certain thickness, made of crystals, transparent to the working region of the spectrum. The plastons have a parallel polished plane.
В качестве материалов дл фильтров примен ют фториды шелочных и щелочноземельных металлов.Silk and alkaline earth metal fluorides are used as filter materials.
Недостатком этих светофильтров вл етс нестабильность характеристик прозрачности в диапазоне изменени температур. Предложенный светофильтр отличаетс от известного тем, что он составлен из подложки и пленки, нанесенной на нее, причем подложка выполнена из фторида щелочного металла. ( Li 7, CoF и т.д.), а пленка из щелочноземельного металла ( BoiT2 Са FZ и тл.). Подложка фильтра имеет толщину пор дка 2 мм, а пленка-пор дка сотен ангстрем.The disadvantage of these light filters is the instability of the transparency characteristics in the temperature range. The proposed light filter differs from the known one in that it is composed of a substrate and a film deposited on it, the substrate being made of alkali metal fluoride. (Li 7, CoF, etc.), and an alkaline earth metal film (BoiT2 Ca FZ and so on). The filter substrate is about 2 mm thick and the film is about hundreds of angstroms.
Предложенный свето4«льтр позвол ет полностью подавить излучение Лайман-альфа и дает возможность работать в щироком диапазоне температур без существенного The proposed 4 "liter of light allows you to completely suppress the radiation of Lyman-alpha and gives you the opportunity to work in a wide temperature range without significant
сдвига кра полосы поглощени с извлечением триплета кислорода 13ОО А .the shift of the edge of the absorption band with the extraction of 13OO A oxygen triplet.
На чертеже показаны характеристики прозрачности предложенного фильтра в диапазоне изменени температур.The drawing shows the transparency characteristics of the proposed filter in the temperature range.
Кривые 1-4 соответствуют температурам 78, 234, 299 и соответственно. Пунктирна крива 5 характеризует прозрачность фильтра, выполненного из одииарной фтористобариевой плоской пластинки.Curves 1-4 correspond to temperatures of 78, 234, 299 and, respectively. The dotted curve 5 characterizes the transparency of the filter, made of a di-fluoride fluorobarium flat plate.
Оптические фильтры, изготовленные из подложки с пленкой, имеют характеристики прозрачности, мен кшшес в диапазоне температур 78-373°К не более чем на 6%.Optical filters made of a substrate with a film, have the characteristics of transparency, varying in the temperature range 78-373 ° K by no more than 6%.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6156468A JPS4827936B1 (en) | 1968-08-26 | 1968-08-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU568393A3 true SU568393A3 (en) | 1977-08-05 |
Family
ID=13174721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU6901359990A SU568393A3 (en) | 1968-08-26 | 1969-08-26 | Optical filter |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4827936B1 (en) |
FR (1) | FR2016372A1 (en) |
GB (1) | GB1276700A (en) |
SU (1) | SU568393A3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9716701D0 (en) * | 1997-08-07 | 1997-10-15 | Secr Defence | Gas detection device and method |
-
1968
- 1968-08-26 JP JP6156468A patent/JPS4827936B1/ja active Pending
-
1969
- 1969-08-22 FR FR6928934A patent/FR2016372A1/fr not_active Withdrawn
- 1969-08-26 GB GB4246369A patent/GB1276700A/en not_active Expired
- 1969-08-26 SU SU6901359990A patent/SU568393A3/en active
Also Published As
Publication number | Publication date |
---|---|
GB1276700A (en) | 1972-06-07 |
FR2016372A1 (en) | 1970-05-08 |
JPS4827936B1 (en) | 1973-08-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5646781A (en) | Optical filters for forming enhanced images | |
US3410625A (en) | Multi-layer interference film with outermost layer for suppression of pass-band reflectance | |
US2668478A (en) | Heat protection filter | |
GB1392501A (en) | Striped dichroic filter and method for making the same | |
SU568393A3 (en) | Optical filter | |
GB1474706A (en) | Ray dividers | |
US3614188A (en) | Cesium iodide interference filter with moisture resistant layer | |
JPS55151601A (en) | Pentagonal prism for camera finder | |
GB1262163A (en) | Improvements in and relating to cold light mirrors | |
Teegarden | Fine structure in the exciton bands of the alkali halides | |
US3514174A (en) | Infrared interference filters | |
GB1258096A (en) | ||
GB1225999A (en) | ||
US3860813A (en) | Beamsplitter and vertically illuminated fluorescent microscope using the same | |
GB1389737A (en) | Luminescent screens | |
SE331917B (en) | ||
US2741157A (en) | Anti-reflective coating for color filters | |
GB1175954A (en) | Improvements in and relating to light dividers. | |
SU1642226A1 (en) | Band-stop filter | |
JPS5453549A (en) | Multilayer thin film optical system | |
JPS5595912A (en) | Polarizing beam splitter | |
JPS5593101A (en) | Reflection preventive film | |
GB1088629A (en) | Improvements in or relating to methods of vapour-depositing a plurality of thin films of material onto a curved surface | |
SU121232A1 (en) | Two-layer enlightenment surfaces of optical parts | |
GB1406576A (en) | Optical devices |