CN2590016Y - Faraday anomalous dispersion optical filter - Google Patents
Faraday anomalous dispersion optical filter Download PDFInfo
- Publication number
- CN2590016Y CN2590016Y CN 02290616 CN02290616U CN2590016Y CN 2590016 Y CN2590016 Y CN 2590016Y CN 02290616 CN02290616 CN 02290616 CN 02290616 U CN02290616 U CN 02290616U CN 2590016 Y CN2590016 Y CN 2590016Y
- Authority
- CN
- China
- Prior art keywords
- heating wire
- optical filter
- anomalous dispersion
- electric heating
- dispersion optical
- 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 - Fee Related
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Abstract
The utility model discloses a Faraday anomalous dispersion optical filter. The filter comprises a casing, an inner wall, a cylinder hole, a polarizing piece, an alkali metal atom steam bulb, an insulating cylinder, an electric heating wire, a temperature measurement and control element, a Helmholtz coil, thermal insulation material, and a control circuit interface. The filter is mainly characterized in that the alkali metal atom steam bulb, the electric heating wire and the Helmholtz coil are arranged in the thermal insulation casing; the electric heating wire is wound out and home along the axial direction to avoid an added magnetic field generated by the electric heating wire from influencing the light filtering effect of the optical filter. The utility model has the advantages that the Faraday anomalous dispersion optical filter utilizes heat generated by an electromagnetic coil in the thermal insulation casing to carry out additional heating; the power consumption of the electric heating wire is reduced. Simultaneously, because the volume of the electromagnetic coil is diminished, the weight of the electromagnetic coil and the consumptive power are decreased when the required magnetic field intensity is achieved; the distance of the electromagnetic coil and the atom steam bulb is reduced. Thus, the utility model has the advantages of low power consumption, small volume and light weight; the application value of the Faraday anomalous dispersion optical filter in the high-technology fields of aviation, spaceflight, etc. having high requirements to power consumption, volume and weight is enhanced.
Description
Technical field:
The utility model relates to optical filter, relates in particular to the faraday anomalous dispersion optical filter.
Background technology:
The faraday anomalous dispersion optical filter is compared with interference filter, has advantages such as transmission bandwidth is narrow, efficiency of transmission is high, the outer inhibition of band is strong, is widely used in bias light is suppressed in exigent optics or the photoelectron instrument and equipment.Existing faraday anomalous dispersion optical filter comprises shell, inwall, cylinder bore, polaroid, alkali metal atom steam bubble, insulating cylinder, heating wire, thermometric and temp-controlling element, Helmholtz coils, insulation material, control circuit interface.Adopt the constant temperature oven of sealing, atom steam bubble is placed in the constant temperature enclosure, solenoid then is placed on the outside of constant temperature oven.Its shortcoming is: because solenoid is isolated in outside the constant temperature oven, the heat that has been produced when having wasted its work, and increased the distance of atom bubble with solenoid, in order to guarantee that magnetic field intensity need increase strength of current or increase coil turn, make that existing atomic light filter power consumption height, volume are big, Heavy Weight, these problems have limited existing atomic light filter in the application that power consumption, volume, weight is required very high place such as airborne, spaceborne.
Summary of the invention:
The purpose of this utility model is, a kind of faraday anomalous dispersion optical filter is provided, principal feature is that solenoid is placed in the lagging casing of sealing, the heat that is produced when adopting this structure can utilize solenoid work on the one hand carries out auxiliary heating, reduce the power consumption of heating wire, on the other hand owing to shortened the distance of solenoid and atom steam bubble, thereby the weight of solenoid when reaching required magnetic field intensity and the power that is consumed have also been reduced, therefore, low in energy consumption, volume is little, in light weight, improved the faraday anomalous dispersion optical filter in aviation, space flight etc. are to power consumption, volume, using value in the high-tech sector that weight has high requirements.
For achieving the above object, of the present utility modelly take following technical scheme:
A kind of faraday anomalous dispersion optical filter comprises shell, inwall, cylinder bore, polaroid, alkali metal atom steam bubble, insulating cylinder, heating wire, thermometric and temp-controlling element, Helmholtz coils, insulation material, control circuit interface.Principal character is, alkali metal atom steam bubble, heating wire and Helmholtz coils all is placed in the enclosure of insulation, and with the round vertically coiling of heating wire, influences the filter effect of light filter with the complementary field of avoiding heating wire to produce.
Advantage of the present utility model and effect: because of solenoid all is placed in lagging casing inside, the heat that produces when making its work has reduced power consumption as the part of constant temperature power demand; Because the distance of little solenoid of reduction and atom steam bubble can reduce the internal diameter and the number of turn of solenoid, and reduce required power; Therefore, the utlity model has low in energy consumption, volume is little, lightweight characteristics, has improved the using value of faraday anomalous dispersion optical filter in the high-tech sector that Aeronautics and Astronautics etc. has high requirements to power consumption, volume, weight.
Description of drawings:
Fig. 1 is the utility model cut-open view vertically.
Fig. 2 is an outside drawing of the present utility model.
Wherein: shell 1, inwall 2, cylinder bore 3, polaroid 4, alkali metal atom steam bubble 5, insulating cylinder 6, heating wire 7, thermometric, temp-controlling element 8, insulating cylinder 9, heating wire 10, thermometric, temp-controlling element 11, Helmholtz coils 12, insulation material 13, control circuit interface 14.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
As seen from Figure 1, Figure 2, a kind of faraday anomalous dispersion optical filter comprises shell 1, inwall 2, cylinder bore 3, polaroid 4, alkali metal atom steam bubble 5, insulating cylinder 6, heating wire 7, thermometric, temp-controlling element 8, insulating cylinder 9, heating wire 10, thermometric, temp-controlling element 11, Helmholtz coils 12, insulation material 13, control circuit interface 14.
Shell 1 and inwall 2 constitute the hollow circuit cylinder tube, have cylinder bore 3 axially perpendicular to the hollow circuit cylinder tube, the mutually orthogonal polaroid 4 in polarization direction is settled at the center at hollow circuit cylinder tube two ends, settle alkali metal atom steam bubble 5 in the middle of the hollow circuit cylinder tube, alkali metal atom steam bubble 5 is axially axial identical cylindrical with the hollow circuit cylinder tube, there is the taper protuberance the axial centre of alkali metal atom steam bubble 5, and the taper protuberance of alkali metal atom steam bubble 5 stretches in the cylinder bore 3.By the insulating cylinder 6 that a lot of apertures that distributing are arranged, the outer wall of insulating cylinder 6 comes and goes coiling heating wire 7 vertically in the cylinder bore 3, and the inwall of insulating cylinder 6 is thermometric, temp-controlling element 8 fixedly.The periphery of alkali metal atom steam bubble 5 is by the insulating cylinder 9 that a lot of apertures that distributing are arranged, and the outer wall of insulating cylinder 9 comes and goes coiling heating wire 10 vertically, and the inwall of insulating cylinder 9 is thermometric, temp-controlling element 11 fixedly.Between shell 1 and inwall 2, equidistantly settle two annular Helmholtz coilss 12 with hollow circuit cylinder tube axial centre, fill with insulation material 13 in other space of shell 1 and inwall 2, the control circuit interface 14 that fixing and heating wire 7,10 and thermometric, temp-controlling element 8,11 link to each other on shell 1.
Claims (2)
1, a kind of faraday anomalous dispersion optical filter, comprise shell (1), inwall (2), cylinder bore (3), polaroid (4), alkali metal atom steam bubble (5), insulating cylinder (6) (9), heating wire (7) (10), thermometric and temp-controlling element (8) (11), Helmholtz coils (12), insulation material (13) and control circuit interface (14), it is characterized in that Helmholtz coils (12) is placed in shell (1) inside of insulation.
2, a kind of faraday anomalous dispersion optical filter according to claim 1 is characterized in that, described heating wire (7), (10) come and go vertically and are wound on insulating cylinder (6) and the insulating cylinder (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02290616 CN2590016Y (en) | 2002-12-25 | 2002-12-25 | Faraday anomalous dispersion optical filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02290616 CN2590016Y (en) | 2002-12-25 | 2002-12-25 | Faraday anomalous dispersion optical filter |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2590016Y true CN2590016Y (en) | 2003-12-03 |
Family
ID=33749780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 02290616 Expired - Fee Related CN2590016Y (en) | 2002-12-25 | 2002-12-25 | Faraday anomalous dispersion optical filter |
Country Status (1)
Country | Link |
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CN (1) | CN2590016Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103293579A (en) * | 2013-05-21 | 2013-09-11 | 北京大学 | Low-temperature atomic light filter with low magnetic fields and ultra-narrow line width and method for applying low-temperature atomic light filter |
CN103543418A (en) * | 2013-10-29 | 2014-01-29 | 中国科学院武汉物理与数学研究所 | Heating and temperature controlling device for laser detection nuclear magnetic resonance |
-
2002
- 2002-12-25 CN CN 02290616 patent/CN2590016Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103293579A (en) * | 2013-05-21 | 2013-09-11 | 北京大学 | Low-temperature atomic light filter with low magnetic fields and ultra-narrow line width and method for applying low-temperature atomic light filter |
CN103293579B (en) * | 2013-05-21 | 2015-07-01 | 北京大学 | Low-temperature atomic light filter with low magnetic fields and ultra-narrow line width and method for applying low-temperature atomic light filter |
CN103543418A (en) * | 2013-10-29 | 2014-01-29 | 中国科学院武汉物理与数学研究所 | Heating and temperature controlling device for laser detection nuclear magnetic resonance |
CN103543418B (en) * | 2013-10-29 | 2016-03-23 | 中国科学院武汉物理与数学研究所 | A kind of heating for laser detection nuclear magnetic resonance and attemperating unit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |