Optical filter convenient to replace

Abstract

The utility model relates to the technical field of optical filters, and discloses an optical filter convenient to replace, which comprises a mounting cover and an optical filter main body, a replacement mechanism is arranged at the lower end in the mounting cover, and the replacement mechanism comprises an adjusting block, a plurality of clamping blocks, a plurality of sliding chutes, a plurality of clamping grooves, two moving blocks and two springs. A connecting seat is rotatably arranged close to the lower end in the adjusting block, and the optical filter main body comprises an anti-fog film layer, a first wear-resistant layer, a visible light antireflection film layer, an infrared cut-off film layer and a second wear-resistant layer. According to the utility model, when the optical filter is replaced, the adjusting block is rotated to drive the clamping block to move inwards and release the locking state with the clamping groove, at the moment, the optical filter main body can be easily moved out, the operation steps are simplified, the replacement operation becomes rapid and labor-saving, and the optical filter main body is made of various different materials, so that the optical filter is convenient to replace. Therefore, the optical filter has excellent performance in various environments and is suitable for various optical devices.

Description

Technical Field

[0001] The utility model relates to the technical field of optical filters, in particular to a filter which is easy to replace. Background Art

[0002] A filter is an optical element whose function is to filter and transmit the required specific radiation bands. One thing in common is that no filter can enhance the brightness of celestial body images because they all absorb some wavelengths of light, causing the image to become relatively dim. An optical filter is a component that selectively passes or blocks light according to specific wavelengths and is widely used in scientific research, industrial production and medicine.

[0003] Most existing filter replacement processes are often cumbersome, often requiring the use of specialized tools to complete the removal and reinstallation process. This replacement method not only consumes a lot of time and increases the operator's labor intensity, but also carries a high risk during operation and may cause accidental damage to the filter. In scenarios where frequent replacement is required, not only does it reduce work efficiency, but improper operation during the replacement process may also lead to a decline in filter performance and a shortened service life.

[0004] Therefore, those skilled in the art provide a filter that is easy to replace to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a filter that is easy to replace. The filter body can be quickly replaced through a replacement mechanism, and no professional tools are required, which is easy to operate.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A filter that is easy to replace, comprising a mounting cover and a filter body, wherein a replacement mechanism is provided at the lower end of the mounting cover, the replacement mechanism comprising an adjustment block, a plurality of clamping blocks, a plurality of slide slots, a plurality of clamping slots, two moving blocks and two springs, and a connecting seat is rotatably provided at the lower end of the adjustment block;

[0008] The filter body comprises an anti-fog film layer, a first wear-resistant layer, a visible light anti-reflection film layer, an infrared cut-off film layer and a second wear-resistant layer.

[0009] Furthermore, the lower end of the anti-fog film layer is fixedly set on the upper end of the first wear-resistant layer, the lower end of the first wear-resistant layer is fixedly set on the upper end of the visible light anti-reflection film layer, the lower end of the visible light anti-reflection film layer is fixedly set on the upper end of the infrared cutoff film layer, and the lower end of the infrared cutoff film layer is fixedly set on the upper end of the second wear-resistant layer.

[0010] Furthermore, the anti-fog film layer is made of polydimethylsiloxane, the first wear-resistant layer is made of aluminum oxide, the visible light anti-reflection film layer is made of titanium oxide multilayer dielectric film, the infrared cut-off film layer is made of indium tin oxide, and the second wear-resistant layer is made of titanium nitride.

[0011] Furthermore, the exteriors of the plurality of slide grooves are all opened inside the adjusting block near the upper end, and the upper ends of the plurality of clamping blocks are respectively slidably arranged inside the plurality of slide grooves.

[0012] Furthermore, the opposite sides of the plurality of card blocks are slidably arranged inside the adjustment block, the opposite sides of the plurality of card blocks are slidably arranged inside the plurality of card slots, and the outsides of the plurality of card slots are opened inside the lower end of the installation cover.

[0013] Furthermore, the upper ends of the two moving blocks are fixedly set at the lower end of the adjusting block, the outer ends of the two moving blocks are slidably set inside the connecting seat, the opposite ends of the two springs are respectively fixedly set at the opposite ends of the two moving blocks, and the opposite sides of the two springs are fixedly set inside the connecting seat.

[0014] Furthermore, rubber pads are fixedly provided on opposite sides of the connecting seat and the interior of the mounting cover, and the exterior of the filter body is provided on opposite ends of the two rubber pads.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model proposes a filter that is easy to replace. When the filter needs to be replaced, the adjusting block is rotated to make the card block inside it slide inward in the slide groove. At the same time, the moving block will slide inside the connecting seat and squeeze the spring connected to it, causing the spring to contract inside the connecting seat. When the card block moves inward, it will gradually release the connection with the card slot. When the card block is completely disengaged from the card slot, the filter body can be taken out. The filter can be replaced only by rotating the adjusting block. No complicated tools and operations are required, which saves time and effort while improving replacement efficiency.

[0017] 2. The utility model proposes a filter that is easy to replace. The filter body is precisely designed and superimposed with multiple film layers, so that the filter body can achieve precise control of light, improve the transmittance of visible light, and effectively cut off infrared light, meeting the high-quality light requirements of optical equipment. The first wear-resistant layer and the second wear-resistant layer improve the wear resistance of the filter body and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall axonometric diagram of the present invention;

[0019] Figure 2This is a partial front-section axonometric diagram of the present invention;

[0020] Figure 3 This is a front-view exploded axonometric diagram of the present invention;

[0021] Figure 4 This is a bottom-up exploded axonometric diagram of the present invention;

[0022] Figure 5 This is a schematic top cross-sectional view of the utility model close to the spring;

[0023] Figure 6 This is a schematic top cross-sectional view of the utility model near the adjustment block;

[0024] Figure 7 For this utility model Figure 6 A is an enlarged schematic diagram;

[0025] Figure 8 This is a partial front-section axonometric diagram of the filter body of the utility model.

[0026] Legend:

[0027] 1. Mounting cover; 2. Filter body; 3. Replacement mechanism; 4. Connecting seat; 5. Rubber pad; 201. Anti-fog film layer; 202. First wear-resistant layer; 203. Visible light anti-reflection film layer; 204. Infrared cutoff film layer; 205. Second wear-resistant layer; 301. Adjustment block; 302. Block; 303. Slide groove; 304. Slot; 305. Moving block; 306. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1-Figure 7 , an embodiment provided by the utility model:

[0030] A filter that is easy to replace includes a mounting cover 1 and a filter body 2. A replacement mechanism 3 is provided at the lower end of the mounting cover 1. The replacement mechanism 3 includes an adjustment block 301, multiple clamping blocks 302, multiple slide grooves 303, multiple clamping grooves 304, two moving blocks 305 and two springs 306. A connecting seat 4 is rotatably provided at the lower end of the adjustment block 301. The outsides of the multiple slide grooves 303 are all opened at the upper end of the adjustment block 301. The upper ends of the multiple clamping blocks 302 are respectively slidably provided in the multiple slide grooves 303. The multiple clamping blocks 302 are slidably provided on opposite sides of each other in the adjustment block 301. 02 The opposite sides of each pair are respectively slidably arranged inside the multiple card slots 304, and the exteriors of the multiple card slots 304 are all opened at the lower end of the interior of the mounting cover 1. The upper ends of the two moving blocks 305 are fixedly arranged at the lower end of the adjustment block 301, and the exteriors of the two moving blocks 305 are slidably arranged inside the connecting seat 4. The opposite ends of the two springs 306 are respectively fixedly arranged at the opposite ends of the two moving blocks 305, and the opposite sides of the two springs 306 are fixedly arranged inside the connecting seat 4. The connecting seat 4 is fixedly provided with a rubber pad 5 on the opposite side of the interior of the mounting cover 1, and the exterior of the filter body 2 is arranged at the opposite end of the two rubber pads 5;

[0031] When the adjusting block 301 is rotated to the final position, the block 302 is completely disengaged from the slot 304, and the filter body 2 is released. At this time, the operator can pull the mounting cover 1 upward, remove the old filter body 2, and insert the new filter body 2. Then, the operator reinstalls the mounting cover 1 and releases the force on the adjusting block 301. The rebound force of the spring 306 will push the moving block 305 to return to its original position in the connecting seat 4, causing the block 302 to slide along the slot 303. When the filter body 2 is in the unlocking state, the filter body 2 is locked and the filter 2 is locked.

[0032] Reference Figures 1-8 The filter body 2 includes an anti-fog film layer 201, a first wear-resistant layer 202, a visible light anti-reflection film layer 203, an infrared cut-off film layer 204, and a second wear-resistant layer 205. The lower end of the anti-fog film layer 201 is fixedly arranged on the upper end of the first wear-resistant layer 202, the lower end of the first wear-resistant layer 202 is fixedly arranged on the upper end of the visible light anti-reflection film layer 203, the lower end of the visible light anti-reflection film layer 203 is fixedly arranged on the upper end of the infrared cut-off film layer 204, and the lower end of the infrared cut-off film layer 204 is fixedly arranged on the upper end of the second wear-resistant layer 205. The anti-fog film layer 201 is made of polydimethylsiloxane, the first wear-resistant layer 202 is made of aluminum oxide, the visible light anti-reflection film layer 203 is made of titanium oxide multilayer dielectric film, the infrared cut-off film layer 204 is made of indium tin oxide, and the second wear-resistant layer 205 is made of titanium nitride.

[0033] Specifically, the filter body 2 is composed of a multi-layer structure. The anti-fog film layer 201 is located on the outermost layer and is made of polydimethylsiloxane. It has excellent hydrophobicity and can effectively prevent water vapor condensation, ensuring that the filter still maintains high transparency and stable optical performance in a high humidity environment. The first wear-resistant layer 202 is adjacent to the anti-fog film layer 201 and is made of aluminum oxide. It provides the first layer of physical protection for the filter, effectively resisting scratches and wear that may be encountered in daily use, and maintaining the surface smoothness of the filter. The visible light anti-reflection film layer 203 is made of titanium oxide multilayer dielectric film material. Through the interference effect of the multilayer film, the reflectivity in the visible light range is significantly reduced, the transmittance is improved, the optical imaging effect is optimized, and the infrared cutoff is improved. The stop film layer 204 is made of indium tin oxide, which can effectively absorb and prevent infrared rays from passing through. The bottom layer of the second wear-resistant layer 205 is made of titanium nitride with extremely high hardness, which provides additional wear-resistant protection, enhances the wear resistance of the filter, and extends its service life. The anti-fog film layer 201 ensures the clarity of the filter in high humidity environments. The first wear-resistant layer 202 and the second wear-resistant layer 205 provide double-layer protection and enhance durability. The visible light anti-reflection film layer 203 and the infrared cut-off film layer 204 work together to improve the imaging quality and performance of the optical equipment, reduce image distortion caused by light reflection and infrared interference, and not only maintain excellent optical performance in complex environments, but also improve durability.

[0034] When the filter needs to be replaced, the adjusting block 301 is first rotated to make the moving block 305 inside the mounting seat slide. The movement of the moving block 305 will cause the spring 306 to be compressed. As the adjusting block 301 rotates, the card block 302 will slide inward in the slide groove 303, so that it will be disengaged from the card groove 304 inside the mounting cover 1. When the adjusting block 301 is rotated to the final position, the card block 302 will be completely disengaged from the card groove 304, thereby releasing the fixation of the filter body 2. At this time, the mounting cover 1 is pulled upward, and the old filter body 2 is taken out and the new filter body 2 is inserted. Then the mounting cover 1 is reinstalled, and the force on the adjusting block 301 is then released, so that the spring 306 rebounds and pushes the moving block 305 to return to its original position in the connecting seat 4, causing the card block 302 to slide outward along the slide groove 303, so that the card block 302 is gradually embedded in the card groove 304, thereby fixing the filter body 2 between the mounting cover 1 and the connecting seat 4.

[0035] Secondly, the filter body 2 adopts a multi-layer composite structure, and the material of each layer is carefully selected for specific environments and optical requirements to ensure excellent performance under various conditions. The anti-fog film layer 201 uses polydimethylsiloxane, which can effectively prevent the formation of water droplets, ensuring high transparency and stable optical performance in high humidity environments. The first wear-resistant layer 202 is made of aluminum oxide, which effectively resists scratches and wear in daily use, keeping the filter surface smooth and tidy. The visible light anti-reflection film layer 203 uses titanium oxide multilayer dielectric film to reduce reflections in the visible light range and optimize image quality. The infrared cutoff film layer 204 is made of indium tin oxide, which can efficiently absorb and block infrared rays, ensuring clear imaging without thermal interference. The second wear-resistant layer 205 is made of high-hardness titanium nitride to provide additional wear protection for the filter.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A filter that is easy to replace, comprising a mounting cover (1) and a filter body (2), characterized in that: A replacement mechanism (3) is provided at the lower end of the interior of the mounting cover (1), the replacement mechanism (3) comprising an adjustment block (301), a plurality of clamping blocks (302), a plurality of slide grooves (303), a plurality of clamping grooves (304), two moving blocks (305) and two springs (306); a connecting seat (4) is rotatably provided at the lower end of the interior of the adjustment block (301); The optical filter body (2) comprises an anti-fog film layer (201), a first wear-resistant layer (202), a visible light anti-reflection film layer (203), an infrared cut-off film layer (204), and a second wear-resistant layer (205).

2. The easily replaceable optical filter according to claim 1, characterized in that: The lower end of the anti-fog film layer (201) is fixedly arranged on the upper end of the first wear-resistant layer (202), the lower end of the first wear-resistant layer (202) is fixedly arranged on the upper end of the visible light anti-reflection film layer (203), the lower end of the visible light anti-reflection film layer (203) is fixedly arranged on the upper end of the infrared cut-off film layer (204), and the lower end of the infrared cut-off film layer (204) is fixedly arranged on the upper end of the second wear-resistant layer (205).

3. The easily replaceable filter according to claim 1, characterized in that: The anti-fog film layer (201) is made of polydimethylsiloxane, the first wear-resistant layer (202) is made of aluminum oxide, the visible light anti-reflection film layer (203) is made of titanium oxide multilayer dielectric film, the infrared cut-off film layer (204) is made of indium tin oxide, and the second wear-resistant layer (205) is made of titanium nitride.

4. The easily replaceable optical filter according to claim 1, characterized in that: The exteriors of the plurality of slide grooves (303) are all opened inside the regulating block (301) near the upper end, and the upper ends of the plurality of clamping blocks (302) are respectively slidably arranged inside the plurality of slide grooves (303).

5. The easily replaceable optical filter according to claim 1, characterized in that: The opposite sides of the plurality of clamping blocks (302) are slidably arranged inside the adjustment block (301), and the opposite sides of the plurality of clamping blocks (302) are slidably arranged inside the plurality of clamping slots (304), respectively. The outsides of the plurality of clamping slots (304) are all opened inside the lower end of the installation cover (1).

6. The easily replaceable optical filter according to claim 1, characterized in that: The upper ends of the two moving blocks (305) are fixedly arranged at the lower end of the adjustment block (301); the outer ends of the two moving blocks (305) are slidably arranged inside the connecting seat (4); the opposite ends of the two springs (306) are respectively fixedly arranged at the opposite ends of the two moving blocks (305); and the opposite sides of the two springs (306) are fixedly arranged inside the connecting seat (4).

7. The easily replaceable optical filter according to claim 1, characterized in that: A rubber pad (5) is fixedly provided on one side opposite to the inside of the connection seat (4) and the mounting cover (1), and the outside of the filter body (2) is provided on one end opposite to the two rubber pads (5).

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