Infrared thermal imaging optical path metallization optical window
By plating a metal film on the substrate of the metallized optical window of the infrared thermal imaging optical path, and setting a frosted welding layer and reserved holes at the connection, the problems of poor welding performance and adhesion are solved, and the effective mass production and imaging accuracy of the metallized optical window of the infrared thermal imaging optical path are achieved.
Patent Information
- Application Number
- CN202421279399.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing optical path metallized optical windows for infrared thermal imaging cannot effectively solve the problems of poor welding performance and adhesion of metal layers, resulting in the inability to obtain effective mass production.
An infrared thermal imaging optical path metallization optical window is designed to enhance welding area to improve welding performance and adhesion by plating a metal film on the substrate and setting a matte welding layer and reserved holes at the connection.
By enhancing the welding area, the problems of poor welding performance and adhesion of metal layers are solved, effective mass production of metallized optical windows of infrared thermal imaging optical paths are achieved, and imaging accuracy and pixels of thermal imager are ensured.
Smart Images
Figure CN222689268U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical windows, in particular to a metallized optical window for infrared thermal imaging light paths. Background Art
[0002] Infrared thermal imaging uses infrared radiation to change the physical properties of infrared sensitive materials. By measuring the degree of this change, the amount of radiation absorbed by the material is measured, and infrared radiation that is invisible to the naked eye is converted into a visible image through means such as photoelectric conversion and electrical signal processing. The optical path metallized optical window in infrared thermal imagers and equipment not only optically cuts off and increases the transmittance of light radiation in special bands, but also has welding packaging to ensure the long-term vacuum sealing of infrared thermal imagers and equipment. At present, optical windows for infrared thermal imaging cannot solve the technical problems of poor welding performance and adhesion of the metal layer, resulting in the inability to effectively mass-produce metallized optical windows. Utility Model Content
[0003] The utility model aims to solve the shortcomings in the prior art and proposes a metalized optical window for an infrared thermal imaging light path.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A metallized optical window for an infrared thermal imaging light path is designed, comprising an outer frame and an infrared film, wherein the outer frame is arranged on the outer side of the infrared film, an upper end surface spacing groove is arranged between the upper end surface of the outer frame and the infrared film, a bottom surface infrared film is integrally formed at the bottom of the infrared film, and the bottom surface infrared film is engaged with the infrared film.
[0006] Preferably, the upper end surface of the outer frame is a metal film plated with Gr, Ni, Au metal by a non-sticky masking tape, and the side surfaces of the outer frame are covered with gold-plated side edges.
[0007] Preferably, the infrared film is a substrate of one of Ge, Si, quartz, sapphire and glass, and the surface of the substrate is coated with an infrared anti-reflection film and a cut-off film, and the infrared anti-reflection film and the cut-off film are two of ZnS, Ge and YiF films.
[0008] Preferably, a coating frame is arranged in the upper end surface spacing groove, a stepped groove is arranged on the upper end surface of the upper end surface spacing groove, and the coating frame is flush with the upper end surface of the stepped groove.
[0009] Preferably, a frosted welding layer is provided at the connection between the outer frame and the infrared film.
[0010] Preferably, a plurality of reserved holes are evenly arranged at the joints of the frosted welding layer.
[0011] The utility model proposes a metalized optical window for infrared thermal imaging light path, which has the beneficial effect that a metal film is plated on a substrate, the metal film covers the front side, sides and vertical surface, and an infrared anti-reflection film and a cutoff film are plated on the infrared film areas on the front and back surfaces through vacuum coating technology, thereby filtering out light in interfering bands and increasing the transmittance of beneficial bands, thereby ensuring the accuracy and pixels of later imaging of the thermal imager. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 An exploded view of a metalized optical window for infrared thermal imaging light path proposed by the utility model;
[0013] Figure 2 This is a top view of a metalized optical window for infrared thermal imaging light path proposed by the utility model.
[0014] In the figure: 1 outer frame, 2 infrared film, 3 gold-plated side, 4 bottom infrared film, 5 upper end surface spacing groove, 6 film frame, 7 step groove, 8 reserved hole, 9 frosted welding layer. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0016] Reference Figure 1-2 A metallized optical window for infrared thermal imaging light path includes an outer frame 1 and an infrared film 2. The outer frame 1 is arranged on the outside of the infrared film 2. An upper end surface spacing groove 5 is arranged between the upper end surface of the outer frame 1 and the infrared film 2. A bottom surface infrared film 4 is integrally formed at the bottom of the infrared film 2, and the bottom surface infrared film 4 is engaged with the infrared film 2.
[0017] The upper end surface of the outer frame 1 is a metal film plated with Gr, Ni, and Au metals through a non-sticky masking tape. The side of the outer frame 1 is covered with a gold-plated side 3. The infrared film 2 is one of Ge, Si, quartz, sapphire, and glass as a substrate. The surface of the substrate is plated with an infrared anti-reflection film and a cut-off film. The infrared anti-reflection film and the cut-off film are two of the ZnS, Ge, and YiF films. The infrared anti-reflection film and the cut-off film can filter out the interfering band light and increase the transmittance of the beneficial band to ensure The accuracy and pixels of the later imaging of the thermal imager can be improved. A coating frame is arranged in the upper end surface spacing groove 5. A step groove 7 is arranged on the upper end surface of the upper end surface spacing groove 5. The coating frame is flush with the upper end surface of the step groove 7. A frosted welding layer 9 is arranged at the connection between the outer frame 1 and the infrared film 2. A plurality of reserved holes 8 are evenly arranged at the joints of the frosted welding layer 9. The frosted welding layer 9 and the reserved holes 8 maximize the welding area and can solve the technical problems of poor welding performance and adhesion of the metal layer.
[0018] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A metalized optical window for infrared thermal imaging light path, comprising an outer frame (1) and an infrared film (2), characterized in that: The outer frame (1) is arranged on the outside of the infrared film (2); an upper end surface spacing groove (5) is arranged between the upper end surface of the outer frame (1) and the infrared film (2); a bottom surface infrared film (4) is integrally formed at the bottom of the infrared film (2); and the bottom surface infrared film (4) is engaged with the infrared film (2).
2. The infrared thermal imaging optical path metalized optical window according to claim 1, characterized in that: The upper end surface of the outer frame (1) is a metal film plated with Gr, Ni or Au metals by means of a non-sticky masking tape, and the side surfaces of the outer frame (1) are covered with gold-plated side edges (3).
3. The infrared thermal imaging optical path metalized optical window according to claim 1, characterized in that: The infrared film (2) is a substrate made of one of Ge, Si, quartz, sapphire and glass, and the surface of the substrate is coated with an infrared anti-reflection film and a cut-off film, and the infrared anti-reflection film and the cut-off film are two of ZnS, Ge and YiF films.
4. The infrared thermal imaging optical path metalized optical window according to claim 1, characterized in that: A film frame is arranged in the upper end surface spacing groove (5), a stepped groove (7) is arranged on the upper end surface of the upper end surface spacing groove (5), and the film frame is flush with the upper end surface of the stepped groove (7).
5. The infrared thermal imaging optical path metalized optical window according to claim 1, characterized in that: A frosted welding layer (9) is provided at the connection points between the outer frame (1) and the infrared film (2).
6. The infrared thermal imaging optical path metalized optical window according to claim 5, characterized in that: A plurality of reserved holes (8) are evenly arranged at the joints of the frosted welding layer (9).