Installation protection structure of infrared cut-off filter

Abstract

The utility model discloses an installation protection structure of an infrared cut-off filter, which comprises a machine body front end seat, the front surface of the machine body front end seat is provided with an installation seat, and the installation seat comprises a first positioning sleeve installed on the machine body front end seat and a second positioning sleeve installed at the upper end of the first positioning sleeve in a matched mode. An annular lapping base is fixed to the inner side of the first positioning sleeve by a circle, a plurality of positioning sliding grooves pointing to the circle center are formed in the upper portion of the annular lapping base in the radial direction of the annular lapping base by a circle, sliding blocks slide on the inner sides of the positioning sliding grooves, and the bottom of the whole jacking and buffering mechanism is fixedly supported through the annular lapping base. Meanwhile, the supporting rod tightly abuts against and supports the annular clamping sleeve and the optical filter under the cooperation of a sliding block, an elastic jacking part, a convex ring, a concave rubber pad, an annular clamping groove and the like, the optical filter can be effectively prevented from deviating and shaking through a plurality of annular supporting units, and the installation and use stability of the optical filter assembly is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filter assembly installation, in particular to an installation protection structure for an infrared cut-off filter. Background Art

[0002] Infrared cut-off filter is an optical filter with high transmittance in the visible light region and high cut-off in the near infrared. It is mainly used in digital imaging fields such as mobile phone cameras, digital camera lenses, computer built-in cameras, surveillance cameras, and car lenses to eliminate the impact of infrared light on the imaging system. At the same time, the filter is also one of the most important components in the camera lens.

[0003] The quality and stability of the infrared cutoff filter will directly affect the quality of the finished camera product. Currently, the existing filters are mostly installed by gluing the filter and the lens mount of the camera module together. This installation method has the characteristics of simple process and easy production, but it also has some shortcomings. For example, the filter has poor stability. During long-term continuous use, the filter is prone to shaking due to vibration, impact, weather aging and other factors. When this happens, it will easily affect the imaging quality of the lens and affect subsequent use. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide an installation and protection structure for an infrared cutoff filter to solve the problem that the installation of the infrared cutoff filter in the prior art proposed in the above background technology causes the filter to shake due to factors such as vibration, impact and weather aging, which will easily affect the imaging quality of the lens when this happens.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an installation and protection structure for an infrared cutoff filter, which includes a front end seat of a body, a mounting seat is arranged on the front side of the front end seat of the body, the mounting seat includes a first positioning sleeve installed on the front end seat of the body and a second positioning sleeve matched and installed on the upper end of the first positioning sleeve, an annular seat is fixed on the inner side of the first positioning sleeve, the upper part of the annular seat has a plurality of positioning grooves pointing to the center of the circle along its radial circle, a slider is sliding on the inner side of the positioning groove, an elastic pressing component abutting against the slider is also arranged on the inner side of the positioning groove, an inclined support rod is hinged on the upper end of the support rod, an annular sleeve is hinged on the upper end of the support rod, and a filter is fixed on the inner side of the annular sleeve, and a convex ring is embedded in the top of the inner side of the second positioning sleeve on the upper end.

[0007] As a preferred solution of the installation protection structure of the infrared cutoff filter described in the utility model, a focusing lens connected to the upper end of the second positioning sleeve is also installed on the front of the mounting seat, and the focusing lens is coaxial with the second positioning sleeve.

[0008] As a preferred solution of the installation protection structure of the infrared cut-off filter described in the utility model, wherein the elastic pressing component is a coil spring abutting against the slider;

[0009] There is a gap between the slider located at the opposite end of the spiral spring and the positioning slot.

[0010] As a preferred solution of the installation protection structure of the infrared cutoff filter described in the utility model, the top of the inner side of the second positioning sleeve also has an annular groove corresponding to the convex ring, and the inner side of the annular groove also has a concave rubber pad embedded and wrapped around the outer side of the convex ring.

[0011] As a preferred solution of the installation protection structure of the infrared cutoff filter described in the utility model, the front side of the front end seat of the body also has a photosensitive module located directly below the filter.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the installation and protection structure of the infrared cutoff filter has the characteristics of simple structural coordination, convenient installation and good use effect. When in use, the bottom of the entire top pressure buffer mechanism is fixedly supported by the annular seat. At the same time, the support rod forms a tight abutment and support for the annular sleeve and the filter under the cooperation of the slider, the elastic top pressure component, the convex ring, the concave rubber pad and the annular groove, and the multiple annular support units can effectively prevent the filter from being offset or shaking, effectively ensuring the installation and use stability of the filter assembly, thereby improving the imaging quality and use effect of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the utility model as a whole;

[0015] Figure 3 This is a schematic diagram of the detailed structure of the support unit of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the annular pedestal in a top view of the utility model.

[0017] In the figure: 10, front end seat of the body; 20, mounting seat; 201, first positioning sleeve; 202, second positioning sleeve; 202a, annular groove; 203, annular seat; 203a, positioning slide groove; 204, slider; 205, elastic top pressure component; 206, support rod; 207, annular sleeve; 2071, convex ring; 208, concave rubber pad; 30, focusing lens; 40, photosensitive module; H, filter. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0019] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0020] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Figure 1-Figure 4 The figure shows the overall structure of the installation protection structure of an infrared cut-off filter of the utility model. Figure 1-Figure 4The present embodiment is an installation and protection structure of an infrared cut-off filter, comprising a front end seat 10 of a machine body, a mounting seat 20 is arranged on the front of the front end seat 10 of the machine body, the mounting seat 20 comprises a first positioning sleeve 201 mounted on the front end seat 10 of the machine body and a second positioning sleeve 202 matched and mounted on the upper end of the first positioning sleeve 201, an annular seat 203 is fixed on the inner side of the first positioning sleeve 201, and the upper part of the annular seat 203 has a plurality of positioning holes pointing to the center of the circle along a radial circle thereof. The slide groove 203a has a slider 204 sliding inside the positioning slide groove 203a, and an elastic pressing component 205 abutting against the slider 204 is also provided inside the positioning slide groove 203a. An inclined support rod 206 is hinged on the upper end of the slider 204, and an annular sleeve 207 is hinged on the upper end of the support rod 206. A filter H is fixed on the inner side of the annular sleeve 207, and a convex ring 2071 is embedded in the top of the inner side of the second positioning sleeve 202 on the upper end of the annular sleeve 207.

[0022] Furthermore, a focusing lens 30 connected to the upper end of the second positioning sleeve 202 is also installed on the front of the mounting seat 20, and the focusing lens 30 and the second positioning sleeve 202 are coaxial. Here, the focusing lens 30 and the mounting seat 20 are connected by a threaded sleeve method in the technical field, so as to achieve the purpose of focal length adjustment, and the number and stroke of the focusing lens 30 are set according to actual needs, and this embodiment does not limit or elaborate on this.

[0023] Furthermore, the elastic pressing component 205 is a coil spring abutting against the slider 204; wherein, there is a gap between the slider 204 located at the opposite end of the coil spring and the positioning slot 203a, so that when the coil spring acts on the slider 204, the slider 204 can have enough margin to ensure the pushing force stroke of the support rod 206, so that the support rod 206 can be tightly pressed against the annular sleeve 207. It can be understood that the slider 204, the elastic pressing component 205 and the support rod 206 are an elastic support unit, and a circle of the annular seat 203 can be provided with a specific number of elastic support units according to actual needs, as long as the annular sleeve 207 and the filter H can be ensured to be used stably.

[0024] Furthermore, the top of the inner side of the second positioning sleeve 202 also has an annular groove 202a corresponding to the convex ring 2071, and the inner side of the annular groove 202a also has a concave rubber pad 208 embedded and wrapped around the outer side of the convex ring 2071. The annular sleeve 207 can be positioned and installed with the cooperation of the annular groove 202a and the convex ring 2071 to prevent it from being offset and dislocated. At the same time, by arranging a concave rubber pad 208 matching the convex ring 2071 on the inner side of the annular groove 202a, it not only makes the embedding more tight and stable, but also provides a certain elastic buffer for the annular sleeve 207, thereby playing a role of installation protection.

[0025] Furthermore, in the present embodiment, the mounting seat 20 has two shell units, namely a first positioning sleeve 201 and a second positioning sleeve 202. The two shell units can be connected by snap-fitting, threaded connection, etc., as long as they are convenient for disassembly and assembly. At the same time, the annular seat 203 and the annular sleeve 207 are all arranged on the inner side of the first positioning sleeve 201. In this way, the first positioning sleeve 201 and the second positioning sleeve 202 can be directly docked and fixed during installation, so that the upper part of the annular sleeve 207 is synchronously docked with the inner top of the second positioning sleeve 202, and the installation operation is very convenient.

[0026] The front side of the front end seat 10 of the body also has a photosensitive module 40 located directly below the filter H; the photosensitive module 40 is used to sense the transmitted light of the filter H and is the basic sensing unit of the camera lens; in this embodiment, when in use, the bottom of the entire top pressure buffer mechanism is fixedly supported by the annular mount 203, and at the same time, the support rod 206 forms a tight contact and support for the annular sleeve 207 and the filter H under the cooperation of the slider 204, the elastic top pressure component 205, the convex ring 2071, the concave rubber pad 208 and the annular groove 202a, and the multiple circumferential support units can effectively prevent the filter H from shifting or shaking, effectively ensuring the installation and use stability of the filter assembly, thereby improving the imaging quality and use effect of the lens.

[0027] In summary, the installation and protection structure of an infrared cutoff filter in this embodiment can directly dock and fix the first positioning sleeve 201 and the second positioning sleeve 202 when in use, so that the upper part of the annular sleeve 207 is synchronously docked with the inner top of the second positioning sleeve 202. During use, the bottom of the entire top pressure buffer mechanism is fixedly supported by the annular mount 203. At the same time, the support rod 206 forms a tight contact and support for the annular sleeve 207 and the filter H with the cooperation of the slider 204, the elastic top pressure component 205, the convex ring 2071, the concave rubber pad 208 and the annular groove 202a, and the multiple circumferential support units can effectively prevent the filter H from shifting and shaking, thereby effectively ensuring the installation and use stability of the filter assembly.

[0028] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An installation and protection structure for an infrared cutoff filter, characterized in that: The invention comprises a machine body front end seat (10), wherein a mounting seat (20) is arranged on the front side of the machine body front end seat (10), wherein the mounting seat (20) comprises a first positioning sleeve (201) mounted on the machine body front end seat (10) and a second positioning sleeve (202) matched and mounted on the upper end of the first positioning sleeve (201), wherein an annular seat (203) is fixed on the inner side of the first positioning sleeve (201), wherein the upper part of the annular seat (203) has a plurality of positioning grooves (203a) pointing to the center of the circle along a radial direction thereof, wherein the positioning grooves (203a) are arranged on the inner side of the first positioning sleeve (201) and the second positioning sleeve (202) is matched and mounted on the upper end of the first positioning sleeve (201), wherein the first positioning sleeve (201) is provided with a plurality of positioning grooves (203a) pointing to the center of the circle along a radial direction thereof, wherein the second positioning sleeve (202) is provided with a plurality of positioning grooves (203a) pointing to the center of the circle ... 3a), a slider (204) slides inside the positioning groove (203a), an elastic pressing component (205) abutting against the slider (204) is also arranged inside the positioning groove (203a), an inclined support rod (206) is hinged on the upper end of the slider (204), an annular clamping sleeve (207) is hinged on the upper end of the support rod (206), and a filter (H) is fixed inside the annular clamping sleeve (207), and a convex ring (2071) is provided on the upper end of the annular clamping sleeve (207) which is embedded in the top of the inner side of the second positioning sleeve (202).

2. The installation and protection structure for an infrared cutoff filter according to claim 1, characterized in that: A focusing lens (30) connected to the upper end of the second positioning sleeve (202) is also mounted on the front of the mounting seat (20), and the focusing lens (30) and the second positioning sleeve (202) are coaxial.

3. The installation and protection structure of an infrared cutoff filter according to claim 1, characterized in that: The elastic pressing component (205) is a coil spring abutting against the slider (204); There is a gap between the slider (204) located at the opposite end of the coil spring and the positioning slot (203a).

4. The installation and protection structure of an infrared cutoff filter according to claim 1, characterized in that: The inner top of the second positioning sleeve (202) also has an annular groove (202a) corresponding to the convex ring (2071), and the inner side of the annular groove (202a) also has a concave rubber pad (208) embedded and wrapped around the outer side of the convex ring (2071).

5. The installation and protection structure for an infrared cutoff filter according to claim 1, characterized in that: The front side of the machine body front end seat (10) also has a photosensitive module (40) located directly below the filter (H).

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