Three-gear filtering driving structure

Abstract

The utility model discloses a three-gear light filtering driving structure which comprises a first movable switching piece and a first driving assembly located on the side of the first movable switching piece, the first driving assembly is in driving connection with the first movable switching piece, and the first driving assembly drives the first movable switching piece to move horizontally. The first movable switching sheet is provided with a first AR optical filter and an IR optical filter; the three-gear light filtering driving structure further comprises a second movable switching piece, the second movable switching piece and the first movable switching piece are arranged in a vertically spaced mode, and the second movable switching piece is provided with a second AR light filter and an ND light filter. A second driving assembly is arranged beside the second movable switching piece, the second driving assembly is in driving connection with the second movable switching piece, and the second driving assembly drives the second movable switching piece to move horizontally. By means of the structural design, the three-gear optical filter has the advantages of being novel in structural design and capable of achieving three-gear optical filter switching.

Description

Technical Field

[0001] The utility model relates to the technical field of optical devices, in particular to a three-speed light filtering driving structure. Background Art

[0002] The IR-CUT dual filter means that a set of filters is built into the camera lens group. When the infrared sensing point outside the lens detects changes in the intensity of light, the built-in IR-CUT automatic switching filter can automatically switch according to the intensity of the external light to achieve the best image effect. In other words, the dual filter can automatically switch the filter during the day or at night, so the best imaging effect can be obtained regardless of whether it is day or night.

[0003] The authorization announcement number is: CN213750627U, and the patent name is: A Chinese utility model patent for an integrated multi-filter IR-CUT switcher, which specifically discloses the following technical solutions, specifically: an integrated multi-filter IR-CUT switcher, including a switcher fixing seat, a switcher cover, the switcher fixing seat is provided with a fixing seat light-through hole, and the switcher cover is provided with a cover light-through hole; a filter switching component is embedded in a switch sheet accommodating cavity between the switcher fixing seat and the switcher cover, and the filter switching component includes a movable switch sheet, and the middle position of the movable switch sheet is opened. A light-through hole for the switching piece is provided, and an IR filter and an AR filter are installed on the movable switching piece; a switching piece driving component is installed in the switching piece accommodating cavity beside the movable switching piece, and the switching piece driving component includes a U-shaped iron core, a winding shaft, a coil winding, and a movable crank. The movable crank includes a crank mounting portion located between two iron core magnetic pole portions of the U-shaped iron core, a crank mounting shaft is installed between the switch fixing seat and the switch cover plate, the crank mounting portion is sleeved on the crank mounting shaft, a magnet is clamped on the outer periphery of the crank mounting portion, a crank driving portion is arranged on the crank mounting portion, and the switching piece driving portion of the movable switching piece is connected to the crank driving portion.

[0004] It should be pointed out that in the process of realizing the filter switching action of the above-mentioned integrated multi-filter IR-CUT switcher, the coil winding is energized and the U-shaped iron core is magnetized. The two magnetic pole parts of the magnetized U-shaped iron core serve as magnetic poles. The magnetic force of the two magnetic poles of the U-shaped iron core acts on the magnet and causes the magnet to rotate, that is, the U-shaped iron core, the winding shaft, the coil winding, and the magnet together constitute a magnetic valve engine structure, and the rotating magnet drives the movable crank to rotate. The rotating movable crank pulls the switching piece driving part of the movable switching piece through the crank driving part, thereby causing the movable switching piece to move left and right in the switching piece accommodating cavity; wherein, when the movable switching piece moves to the left, the AR filter is facing the cover plate light hole and the fixed seat light hole, and the AR filter performs light filtering; when the movable switching piece moves to the right, the IR filter is facing the cover plate light hole and the fixed seat light hole, and the IR filter performs light filtering.

[0005] It should be pointed out that, for the above-mentioned integrated multi-filter IR-CUT switch, it can only achieve two levels of filtering, one level of filtering is AR filter filtering, and the other level of filtering is IR filter filtering, but it cannot achieve three levels of filtering, that is, there are fewer levels of filtering switching. Utility Model Content

[0006] The utility model aims to provide a three-speed light filtering driving structure to address the deficiencies of the prior art. The three-speed light filtering driving structure has a novel design and can realize three-speed light filtering switching.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0008] A three-speed filter driving structure includes a first movable switching piece and a first driving component located beside the first movable switching piece, wherein the first driving component is drivingly connected to the first movable switching piece and the first driving component drives the first movable switching piece to move horizontally, and the first movable switching piece is equipped with a first AR filter and an IR filter;

[0009] The three-speed filter driving structure also includes a second movable switching piece, which is arranged vertically and horizontally with the first movable switching piece, and is provided with a second AR filter and an ND filter;

[0010] A second driving component is installed beside the second movable switching piece. The second driving component is drivingly connected to the second movable switching piece. The second driving component drives the second movable switching piece to move horizontally.

[0011] Among them, the first movable switching piece and the second movable switching piece are respectively provided with a vertically penetrating switching piece light-through hole, the first AR filter and the IR filter are located at the switching piece light-through hole position of the first movable switching piece, and the second AR filter and the ND filter are located at the switching piece light-through hole position of the second movable switching piece.

[0012] The first AR filter and the IR filter are respectively glued to the first movable switching sheet, and the second AR filter and the ND filter are respectively glued to the second movable switching sheet.

[0013] Among them, the first driving component and the second driving component respectively include a U-shaped iron core, a winding shaft mounted on the U-shaped iron core, a coil winding wrapped around the outer periphery of the winding shaft, an active magnet rotatably installed between two magnetic poles of the U-shaped iron core, and a driving crank that rotates synchronously with the active magnet, and each driving crank is respectively connected to the corresponding first active switching piece and the second active switching piece.

[0014] Wherein, the core of each movable magnet is respectively provided with a magnet mounting hole, and the fixed end of each driving crank is embedded and fastened in the magnet mounting hole of the corresponding movable magnet;

[0015] The free end of each driving crank is respectively provided with a convex column, the first movable switching piece and the second movable switching piece are respectively provided with a vertically penetrating oblong through hole, and the convex column of each driving crank is respectively inserted into the corresponding oblong through hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects, specifically: when working, the first driving component drives the first active switching piece to move, and the second driving component drives the second active switching piece to move; when the first AR filter is aligned with the ND filter, it is in the first filtering state position, when the IR filter is aligned with the ND filter, it is in the second filtering state position, and when the IR filter is aligned with the second AR filter, it is in the second filtering state position; therefore, the three-speed filter driving structure of the utility model has the advantages of novel structural design and the ability to realize three-speed filter switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is an exploded schematic diagram of the utility model.

[0020] exist Figure 1 and Figure 2 Included are:

[0021] 11-first movable switching piece; 12-second movable switching piece; 13-light through hole of switching piece; 14-long round through hole; 21-first driving component; 22-second driving component; 23-U-shaped iron core; 24-winding shaft; 25-coil winding; 26-movable magnet; 27-driving crank; 28-convex column; 31-first AR filter; 32-IR filter; 33-second AR filter; 34-ND filter. DETAILED DESCRIPTION

[0022] The present invention will be described below in conjunction with specific implementation methods.

[0023] Embodiment 1, as Figure 1 and Figure 2As shown, a three-speed filter driving structure includes a first movable switching piece 11 and a first driving component 21 located next to the first movable switching piece 11. The first driving component 21 is connected to the first movable switching piece 11 and the first driving component 21 drives the first movable switching piece 11 to move horizontally. The first movable switching piece 11 is equipped with a first AR filter 31 and an IR filter 32.

[0024] Further, such as Figure 1 and Figure 2 As shown, the three-speed filter driving structure also includes a second movable switching piece 12 , which is arranged vertically and horizontally with the first movable switching piece 11 , and is provided with a second AR filter 33 and an ND filter 34 .

[0025] Furthermore, if Figure 1 and Figure 2 As shown, a second driving assembly 22 is installed beside the second movable switching piece 12 , and the second driving assembly 22 is drivingly connected to the second movable switching piece 12 , and the second driving assembly 22 drives the second movable switching piece 12 to move horizontally.

[0026] Specifically, Figure 1 and Figure 2 As shown, the first movable switching piece 11 and the second movable switching piece 12 are respectively provided with a vertically penetrating switching piece light hole 13, the first AR filter 31 and the IR filter 32 are located at the switching piece light hole 13 of the first movable switching piece 11, and the second AR filter 33 and the ND filter 34 are located at the switching piece light hole 13 of the second movable switching piece 12.

[0027] It should be pointed out that the three-speed filter driving structure of the first embodiment is a part of the IR-CUT switch, and the first active switching piece 11 and the second active switching piece 12 are slidably installed inside the shell of the IR-CUT switch, and the shell of the IR-CUT switch can guide the first active switching piece 11 and the second active switching to ensure that the first active switching piece 11 and the second active switching piece 12 move in a straight line.

[0028] It should be further pointed out that, when the three-speed filter driving structure of the first embodiment of the present invention is working, the first driving component 21 drives the first active switching piece 11 to move, thereby causing the first AR filter 31 and the IR filter 32 to move synchronously with the first active switching piece 11; the second driving component 22 drives the second active switching piece 12 to move, thereby causing the second AR filter 33 and the ND filter 34 to move synchronously with the second active switching piece 12; when the first AR filter 31 and the ND filter 34 are aligned and located in the optical channel of the IR-CUT switch, the first embodiment of the present invention is composed of the first AR filter 31 and the ND filter 34. The filter combination is used for filtering; when the IR filter 32 is aligned with the ND filter 34 and is located in the optical channel of the IR-CUT switch, the first embodiment of the present invention filters light through the filter combination composed of the IR filter 32 and the ND filter 34; when the IR filter 32 is aligned with the second AR filter 33 and is located in the optical channel of the IR-CUT switch, the first embodiment of the present invention filters light through the filter combination composed of the IR filter 32 and the second AR filter 33; therefore, the three-speed filter driving structure of the first embodiment of the present invention can realize three kinds of filter state switching, that is, it can enable the IR-CUT switch to realize three-speed filter switching.

[0029] In summary, it can be seen that, through the above structural design, the three-speed light filtering driving structure of the first embodiment has the advantages of novel structural design and the ability to achieve three-speed light filtering switching.

[0030] Embodiment 2, as Figure 1 and Figure 2 As shown, the difference between the second embodiment and the first embodiment is that the first AR filter 31 and the IR filter 32 are respectively glued to the first movable switching piece 11 , and the second AR filter 33 and the ND filter 34 are respectively glued to the second movable switching piece 12 .

[0031] Embodiment three, as Figure 1 and Figure 2 As shown, the difference between the third embodiment and the first embodiment is that the first drive component 21 and the second drive component 22 respectively include a U-shaped iron core 23, a winding shaft 24 mounted on the U-shaped iron core 23, a coil winding 25 wrapped around the outer periphery of the winding shaft 24, an active magnet 26 rotatably installed between the two magnetic poles of the U-shaped iron core 23, and a driving crank 27 that rotates synchronously with the active magnet 26, and each driving crank 27 is respectively connected to the corresponding first active switching piece 11 and second active switching piece 12.

[0032] Specifically, the core of each active magnet 26 is respectively provided with a magnet mounting hole, and the fixed end of each driving crank 27 is embedded and fastened in the magnet mounting hole of the corresponding active magnet 26; the free end of each driving crank 27 is respectively provided with a boss 28, and the first active switching piece 11 and the second active switching piece 12 are respectively provided with a vertically penetrating long circular through hole 14, and the boss 28 of each driving crank 27 is respectively inserted into the corresponding long circular through hole 14.

[0033] It should be pointed out that the first driving assembly 21 and the second driving assembly 22 of the third embodiment have been disclosed in the prior art and will not be described in detail herein.

[0034] Embodiment 4. The difference between Embodiment 4 and Embodiment 1 lies in that the first driving component 21 and the second driving component 22 are stepper motors respectively, and a crank is provided at the driving end of each stepper motor respectively, and one end of each crank is connected to the corresponding first movable switching piece 11 and the second movable switching piece 12 respectively, that is, each crank and the corresponding movable switching piece form a crank slider mechanism, and each stepper motor drives the filter to move through the above-mentioned crank slider mechanism.

[0035] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A three-speed filter driving structure, comprising a first movable switching piece (11), a first driving component (21) located beside the first movable switching piece (11), the first driving component (21) being drivingly connected to the first movable switching piece (11), and the first driving component (21) driving the first movable switching piece (11) to move horizontally, and the first movable switching piece (11) being provided with a first AR filter (31) and an IR filter (32); Features: The three-speed filter drive structure also includes a second movable switching piece (12), the second movable switching piece (12) and the first movable switching piece (11) are arranged vertically and spaced apart, and the second movable switching piece (12) is provided with a second AR filter (33) and an ND filter (34); A second driving assembly (22) is installed on the side of the second movable switching piece (12). The second driving assembly (22) is drivingly connected to the second movable switching piece (12). The second driving assembly (22) drives the second movable switching piece (12) to move horizontally.

2. A three-speed light filtering driving structure according to claim 1, characterized in that: The first movable switching piece (11) and the second movable switching piece (12) are respectively provided with a switching piece light-through hole (13) which passes vertically therethrough; the first AR filter (31) and the IR filter (32) are located at the switching piece light-through hole (13) of the first movable switching piece (11); and the second AR filter (33) and the ND filter (34) are located at the switching piece light-through hole (13) of the second movable switching piece (12).

3. The three-speed light filtering driving structure according to claim 1, characterized in that: The first AR filter (31) and the IR filter (32) are respectively glued and bonded to the first movable switching sheet (11), and the second AR filter (33) and the ND filter (34) are respectively glued and bonded to the second movable switching sheet (12).

4. The three-speed light filtering driving structure according to claim 1, characterized in that: The first driving assembly (21) and the second driving assembly (22) respectively comprise a U-shaped iron core (23), a winding shaft (24) mounted on the U-shaped iron core (23), a coil winding (25) wrapped around the outer periphery of the winding shaft (24), a movable magnet (26) rotatably mounted between two magnetic poles of the U-shaped iron core (23), and a driving crank (27) that rotates synchronously with the movable magnet (26), and each driving crank (27) is respectively connected to the corresponding first movable switching piece (11) and second movable switching piece (12).

5. A three-speed light filtering driving structure according to claim 4, characterized in that: The core of each movable magnet (26) is respectively provided with a magnet mounting hole, and the fixed end of each driving crank (27) is clamped and fastened in the magnet mounting hole of the corresponding movable magnet (26); A convex column (28) is provided at the free end of each driving crank (27), and the first movable switching piece (11) and the second movable switching piece (12) are respectively provided with a vertically penetrating oblong through hole (14), and the convex column (28) of each driving crank (27) is respectively inserted into the corresponding oblong through hole (14).

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