CN218974703U - Temperature-control-adjustable optical filter - Google Patents
Temperature-control-adjustable optical filter Download PDFInfo
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- CN218974703U CN218974703U CN202223533701.0U CN202223533701U CN218974703U CN 218974703 U CN218974703 U CN 218974703U CN 202223533701 U CN202223533701 U CN 202223533701U CN 218974703 U CN218974703 U CN 218974703U
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- thermal expansion
- temperature controller
- rotating
- optical filter
- piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model provides a temperature-control adjustable optical filter, which comprises a first collimator, a filter plate, a second collimator, a temperature controller, a thermal expansion piece, a rotating support and an elastic piece, wherein the temperature controller and the thermal expansion piece form heat conduction, the rotating support is provided with a rotating axis, the filter plate is arranged on an installation part of the rotating support and is close to the rotating axis, the filter plate rotates along with the rotating support around the rotating axis, and the thermal expansion piece and the elastic piece are respectively adjacent to a driving part. The temperature controller is used for controlling cold and hot temperatures, and the temperature controller and the thermal expansion piece form thermal transmission, when the thermal expansion piece is heated and expanded or cooled and contracted, the thermal expansion piece is matched with elastic reset force of the elastic piece, the rotating support and the filter piece are driven to rotate around the rotating axis, when the first collimator transmits the filter piece to output signal light to the second collimator, the transmission center wavelength is changed along with the rotation of the filter piece by utilizing filtering, and then the output wavelength is changed by utilizing temperature control.
Description
Technical Field
The utility model relates to the field of optical devices, in particular to a temperature-control adjustable optical filter.
Background
The optical filter is an optical device made of polycarbonate as a base material, and the surface of the optical filter is covered with different functional coating films, wherein the different functional coating films are used for filtering out certain partial wave bands in light rays and only allow the wavelength of light rays with certain color to pass through, so that the optical filter is widely applied to different optical fields.
The conventional method for adjusting the transmission center wavelength is that an included angle is formed between an incident light beam and the optical axis of the optical filter, and the transmission center wavelength moves towards a short wave along with the increase of the included angle, so that the adjustment of the transmission center wavelength is realized.
With further intelligent control of the optics, it is desirable to design a mechanism that does not require external mechanical adjustment, but rather utilizes intelligent control of temperature to achieve filter adjustment.
Disclosure of Invention
The utility model aims to provide a temperature-control adjustable optical filter.
In order to achieve the purpose of the utility model, the utility model provides a temperature-control adjustable optical filter, which comprises a first collimator, a filter and a second collimator, wherein the first collimator, the filter and the second collimator are arranged along the direction of an optical path; the optical filter also comprises a temperature controller, a thermal expansion piece, a rotating bracket and an elastic piece, wherein the temperature controller and the thermal expansion piece form heat conduction, the rotating bracket is provided with a rotating axis, the filter sheet is arranged on the mounting part of the rotating bracket and is close to the rotating axis, and the filter sheet rotates along with the rotating bracket around the rotating axis; the driving part of the rotating bracket is positioned at the outer side of the mounting part, the thermal expansion piece is adjacent to the driving part and can drive the driving part to rotate around the rotating shaft, and the elastic piece is connected with the driving part and can drive the driving part to rotate around the rotating shaft.
The optical filter further comprises a shell, wherein the shell encloses a relatively closed cavity, and the filter plate, the temperature controller, the thermal expansion piece, the rotating support and the elastic piece are all arranged in the relatively closed cavity.
In a further scheme, the optical filter is provided with a fixed support in the relative closed cavity, the fixed support fixes the position of the temperature controller, the fixed end of the thermal expansion piece is connected with the fixed support, and the free end of the thermal expansion piece is adjacent to the driving part.
In a further scheme, the shell is provided with an assembly groove in the relative closed cavity, the temperature controller is arranged in the assembly groove, the fixing support is adjacent to the upper side of the temperature controller, and the thermal expansion piece is positioned above the temperature controller.
Still further, the shell is provided with pin holes in a penetrating manner, and pins of the temperature controller penetrate through the pin holes.
The further scheme is that the shell is provided with a rotating groove in the relative closed cavity, a bearing is arranged in the rotating groove, a rotating shaft is arranged on the mounting part, and the rotating shaft is connected with the bearing.
Still further, the mounting portion is provided with a mounting plane, and the filter is disposed on the mounting plane.
In a further development, the drive is arranged in a rod-like manner, the thermal expansion element being connected to the drive at a position closer to the axis of rotation than the elastic element is connected to the drive.
Still further, the temperature controller is a semiconductor refrigeration sheet and/or an electric heating sheet.
Still further, the thermal expansion member is made of a teflon material.
The utility model has the advantages that the temperature controller controls the cold and hot temperature, and the temperature controller and the thermal expansion piece form thermal transmission, when the thermal expansion piece is heated and expanded or cooled and contracted, the elastic restoring force of the elastic piece is matched, the rotating bracket and the filter piece are driven to rotate around the rotating axis, when the first collimator transmits the filter piece to output signal light to the second collimator, the transmission center wavelength is changed along with the rotation of the filter piece, and then the output wavelength is changed by utilizing temperature control. Furthermore, the thermal expansion member is arranged at a position closer to the rotation axis, the rotation stroke of the rotating bracket is relatively improved through the limited deformation amount of the thermal expansion member, and the rotating bracket is enabled to rotate more stably by utilizing the bearing, so that the adjustment accuracy can be further improved. In addition, a Teflon material with a relatively high linear expansion coefficient is adopted, the thermal expansion piece of the Teflon material is more concentrated in one direction to extend or shorten, and the temperature rise or the temperature drop is controlled through the TEC semiconductor refrigerating piece and/or the electric heating piece, so that the Teflon material is simple and efficient in regulation and control, and the regulation response speed is high.
Drawings
Fig. 1 is a block diagram of an embodiment of an optical filter of the present utility model.
Fig. 2 is an internal structural view of an optical filter embodiment of the present utility model.
Fig. 3 is an exploded view of an embodiment of an optical filter of the present utility model.
The utility model is further described below with reference to the drawings and examples.
Detailed Description
Referring to fig. 1 to 3, the optical filter 1 includes a housing 11, a first collimator 131, a filter plate 14, a second collimator 132, a temperature controller 24, a thermal expansion member 23, a rotating bracket 21, a fixed bracket 25, and an elastic member 22, the first collimator 131, the filter plate 14, and the second collimator 132 being sequentially arranged in the optical path direction, the first collimator 131 being disposed on one side outer wall of the housing 11, the second collimator 132 being disposed on the other side outer wall of the housing 11, the housing 11 enclosing a relatively closed cavity 111, the filter plate 14, the temperature controller 24, the thermal expansion member 23, the rotating bracket 21, the fixed bracket 25, and the elastic member 22 being disposed within the relatively closed cavity 111.
The rotary support can be made of ceramic materials, the rotary support 21 is provided with a mounting part 221 and a driving part 214, the mounting part 221 is in cylindrical arrangement, the upper part of the mounting part 211 is provided with a mounting plane 213, the filter 14 is arranged on the mounting plane 213, the lower part of the mounting part 211 is provided with a rotating shaft 212, the shell 11 is provided with a rotating groove 113 in the relative closed cavity 111, a bearing 114 is arranged in the rotating groove 113, the rotating shaft 212 is connected with the bearing 114, the axis of the rotating shaft 212 and the axis of the bearing 114 are rotation axes, and the rotation setting scheme of the rotary support 21 is various, so that the rotary support 21 can be designed according to practical situations by a person skilled in the art.
The driving part 214 is arranged in a rod shape and is connected to the radial outer side of the mounting part 221, the housing 11 is provided with an assembly groove 112 in the opposite closed cavity 111, the temperature controller 24 is arranged in the assembly groove 112, the fixing bracket 25 is adjacent to the upper side of the temperature controller 24, the thermal expansion member 23 is positioned above the temperature controller 24, the fixing bracket 25 fixes the position of the temperature controller 24, the thermal expansion member 23 is made of teflon material and is arranged in a column shape, the fixed end of the thermal expansion member 23 is connected with the fixing bracket 25, and the free end of the thermal expansion member 23 is adjacent to the driving part 214.
The temperature controller 24 is arranged in a sheet shape, the temperature controller 24 is a semiconductor refrigerating sheet and/or an electric heating sheet, the shell 11 is penetrated and provided with a pin hole 114, a pin 241 of the temperature controller 24 penetrates through the pin hole 114, the temperature of the temperature controller 24 is controlled through the pin 241 to heat and refrigerate the temperature controller, the temperature control of the relative closed cavity 111 is further realized, and heat conduction is formed between the temperature controller 24 and the thermal expansion piece 23 through the temperature controller 24, and the thermal expansion piece 23 is heated and expanded or cooled and contracted.
The elastic member 22 may be a spring, the elastic member 22 is connected to the driving portion 214, the thermal expansion member 23 is connected to the driving portion 214 at a position closer to the rotation axis 15 than the position where the elastic member 22 is connected to the driving portion 214, and of course, the elastic member 22 may be a tension spring, a torsion spring, or a spring sheet to provide an elastic restoring force to the driving portion 214.
During the filtering adjustment, the temperature controller 24 is controlled to drive the thermal expansion member 23 to expand or contract, and then the thermal expansion member 23 is adjacent to the driving portion 214 and can drive the driving portion 214 to rotate around the rotation axis 15, and the elastic member 22 can also drive the driving portion 214 to rotate around the rotation axis 15, so that the position of the rotating bracket 21 is kept relatively stable. The filter 14 is located on the mounting portion 211 of the rotating bracket 21 and is close to the rotation axis 15, and the filter 14 rotates around the rotation axis 15 along with the rotating bracket 21, thereby realizing the change of the output wavelength by temperature control
From the above, the temperature controller controls the cold and hot temperatures, and the temperature controller and the thermal expansion piece form thermal transmission, when the thermal expansion piece is heated and expanded or cooled and contracted, the rotating support and the filter piece are driven to rotate around the rotating axis by matching with the elastic reset force of the elastic piece, when the first collimator outputs signal light to the second collimator through the filter piece, the transmission center wavelength is changed by filtering along with the rotation of the filter piece, and then the output wavelength is changed by temperature control.
Claims (10)
1. A temperature-controlled adjustable optical filter comprises a first collimator, a filter and a second collimator which are arranged along the direction of an optical path;
the method is characterized in that:
the optical filter further comprises a temperature controller, a thermal expansion piece, a rotating support and an elastic piece, wherein the temperature controller and the thermal expansion piece form heat conduction, the rotating support is provided with a rotating axis, the filter is arranged on an installation part of the rotating support and is close to the rotating axis, and the filter rotates around the rotating axis along with the rotating support;
the driving part of the rotating bracket is positioned at the outer side of the mounting part, the thermal expansion piece is adjacent to the driving part and can drive the driving part to rotate around the rotating axis, and the elastic piece is connected with the driving part and can drive the driving part to rotate around the rotating axis.
2. An optical filter according to claim 1, characterized in that:
the optical filter further comprises a shell, a relatively closed cavity is formed by surrounding the shell, and the filter plate, the temperature controller, the thermal expansion piece, the rotating support and the elastic piece are all arranged in the relatively closed cavity.
3. An optical filter according to claim 2, characterized in that:
the optical filter is provided with a fixed support in the relative closed cavity, the fixed support is used for fixing the position of the temperature controller, the fixed end of the thermal expansion piece is connected with the fixed support, and the free end of the thermal expansion piece is adjacent to the driving part.
4. An optical filter according to claim 3, characterized in that:
the shell is provided with an assembly groove in the opposite closed cavity, the temperature controller is arranged in the assembly groove, the fixing support is adjacent to the upper side of the temperature controller, and the thermal expansion piece is located above the temperature controller.
5. An optical filter according to claim 2, characterized in that:
the shell is provided with pin holes in a penetrating mode, and pins of the temperature controller penetrate through the pin holes.
6. An optical filter according to claim 2, characterized in that:
the shell is provided with a rotating groove in the opposite closed cavity, a bearing is arranged in the rotating groove, a rotating shaft is arranged on the mounting part, and the rotating shaft is connected with the bearing.
7. The optical filter of claim 6, wherein:
the mounting part is provided with a mounting plane, and the filter is arranged on the mounting plane.
8. An optical filter according to claim 1, characterized in that:
the driving part is arranged in a rod shape, and the position where the thermal expansion member is connected with the driving part is closer to the rotation axis than the position where the elastic member is connected with the driving part.
9. An optical filter according to any one of claims 1 to 8, wherein:
the temperature controller is a semiconductor refrigerating sheet and/or an electric heating sheet.
10. An optical filter according to any one of claims 1 to 8, wherein:
the thermal expansion member is made of teflon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223533701.0U CN218974703U (en) | 2022-12-29 | 2022-12-29 | Temperature-control-adjustable optical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223533701.0U CN218974703U (en) | 2022-12-29 | 2022-12-29 | Temperature-control-adjustable optical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218974703U true CN218974703U (en) | 2023-05-05 |
Family
ID=86160973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223533701.0U Active CN218974703U (en) | 2022-12-29 | 2022-12-29 | Temperature-control-adjustable optical filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218974703U (en) |
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2022
- 2022-12-29 CN CN202223533701.0U patent/CN218974703U/en active Active
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