CN218458200U - Image acquisition mechanism and oral cavity cleaning equipment - Google Patents

Abstract

The application discloses image acquisition mechanism and oral cavity cleaning device relates to oral cavity cleaning technology field. The image acquisition mechanism comprises an image acquisition piece, a light source and a polarization component. The image acquisition piece comprises a light inlet side; the light source is arranged on one side of the circumferential direction of the image acquisition part and comprises a light emitting side, and the light emitting side is positioned at one end, close to the light inlet side, of the light source; the polarization component covers the light-emitting side and the light-entering side at the same time, and the polarization component is used for shielding light rays which are directly reflected in the light rays generated by the light source from entering the image acquisition component. The image acquisition mechanism provided by the application can solve the problem of bright spots in the image and improve the imaging effect of the image.

Description

Image acquisition mechanism and oral cavity cleaning equipment

Technical Field

The application relates to the technical field of oral cavity cleaning, in particular to an image acquisition mechanism and oral cavity cleaning equipment.

Background

In recent years, electric toothbrushes have become increasingly popular with consumers. Meanwhile, the electric toothbrush is gradually developed towards multi-functionalization, and more comprehensive service is provided for consumers.

At present, the inside image of oral cavity is obtained through setting up the camera among the part electric toothbrush to supply the consumer to look over the inside condition of oral cavity. However, the image acquired by the existing electric toothbrush has bright spots, which can affect the imaging effect of the image and cause poor imaging effect of the image.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide an image acquisition mechanism and oral cavity cleaning device, aim at solving the current not good problem of image formation effect of electric toothbrush collection image.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

in a first aspect, an embodiment of the present application provides an image capturing mechanism, including:

the image acquisition piece comprises a light incidence side;

the light source is arranged on one side of the circumferential direction of the image acquisition part and comprises a light emergent side, and the light emergent side is positioned at one end, close to the light incident side, of the light source; and

the polarization component covers the light emitting side and the light incident side simultaneously, and is used for shielding the light which is directly reflected in the light generated by the light source and enters the image acquisition component.

In one embodiment of the first aspect, the polarization component comprises a first linear polarizer and a second linear polarizer, the polarization direction of the first linear polarizer is perpendicular to the polarization direction of the second linear polarizer;

the first linear polaroid is opposite to the light emergent side, and the second linear polaroid is opposite to the light incident side.

In one embodiment of the first aspect, a perpendicular distance d between an end surface of the image capturing element near one end of the polarizing component and the polarizing component is parallel to an optical axis direction of the image capturing element ₁ Is smaller than the vertical distance d between the end surface of the light source close to one end of the polarization component and the polarization component ₂ 。

In one embodiment of the first aspect, the image capturing mechanism further includes a light equalizing device, the light equalizing device is opposite to the light source, and the light equalizing device is located on a side of the polarizing component away from the light source;

the light-equalizing device is used for diffusing the light which penetrates through the polarization component from one side of the light source.

In one embodiment of the first aspect, the light equalizing device is a fresnel lens.

In one embodiment of the first aspect, the image capturing mechanism further comprises a transparent lens, and the transparent lens covers both the light exiting side and the light entering side;

the light equalizing device is arranged on one side of the light-transmitting lens far away from the polarization component, and the light equalizing device is positioned in the light-transmitting lens and opposite to the light source.

In one embodiment of the first aspect, the position of the transparent lens opposite to the image capturing element is a plane mirror structure.

In one embodiment of the first aspect, the image capturing mechanism further includes a mounting bracket, the mounting bracket includes a bracket body, the polarization component is disposed on one side of the bracket body, and the light source and the image capturing element are mounted on one side of the bracket body away from the polarization component;

the bracket body is provided with a first avoidance hole and a second avoidance hole which are parallel, the first avoidance hole is communicated with the light source and the polarization assembly, and the second avoidance hole is communicated with the image acquisition piece and the polarization assembly.

In one embodiment of the first aspect, the mounting bracket further comprises a mounting platform for supporting the polarization component.

In a second aspect, embodiments of the present application further provide an oral cleaning device, including the image capturing mechanism provided in each of the above embodiments.

The beneficial effect of this application is: the application provides an image acquisition mechanism and oral cavity cleaning device, and oral cavity cleaning device includes this image acquisition mechanism. The image acquisition mechanism comprises an image acquisition piece, a light source and a polarization component. The polarization component can simultaneously cover the light inlet side of the image acquisition part and the light outlet side of the light source. In the use process of the image acquisition mechanism, part of light generated by the light source can be subjected to diffuse reflection in the oral cavity, and the other part of light can be subjected to direct reflection in the oral cavity. The energy carried by the directly reflected light is significantly higher than the energy carried by the diffusely reflected light. The polarization component can shield the light rays directly reflected in the light rays generated by the light source, and the partial light rays are prevented from entering the image acquisition piece. Furthermore, the phenomenon that the directly reflected light appears as bright spots in the image can be avoided, the influence on the imaging effect of the surrounding image can be reduced, the imaging effect of the whole image can be improved, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Figure 1 shows a schematic structural view of an oral cleaning device in some embodiments;

FIG. 2 is a schematic view of a partial cross-sectional structure of the portion A in FIG. 1;

FIG. 3 illustrates an exploded view of an image acquisition mechanism in some embodiments;

FIG. 4 illustrates a side view schematic of an image acquisition mechanism in some embodiments;

FIG. 5 illustrates a schematic cross-sectional view of an image capture mechanism in some embodiments;

FIG. 6 shows a schematic diagram of a polarization component in some embodiments.

Description of the main element symbols:

100-a host; 10-an image acquisition mechanism; 11-an image acquisition member; 111-light incident side; 12-a light source; 121-light exit side; 13-a polarizing component; 131-a first linear polarizer; 132-a second linear polarizer; 14-a mounting bracket; 141-a stent body; 1411-a first avoidance hole; 1412-a second avoidance hole; 142-installing a guide sleeve; 143-mounting a platform; 15-a light-transmitting lens; 151-light equalizing device; 20-a main chassis; 21-assembly holes; 22-a support table; 200-brush head.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Embodiments provide an oral cleaning device that cleans a user's oral cavity. Meanwhile, the oral cleaning device can be used for acquiring images of the inside of the oral cavity of a user, on one hand, the oral cleaning device can facilitate the user to know the internal hygiene condition of the oral cavity, and on the other hand, the oral cleaning device can facilitate the user to find dental calculus, decayed tooth, dental plaque and other pathological changes in time so as to take correction, treatment and the like in time. In some embodiments, the oral cleaning device may be a power toothbrush.

In other embodiments, the oral cleaning device may also be a dental irrigator or the like.

As shown in fig. 1, in some embodiments, the oral cleaning device may include an oral cleaning device main body (hereinafter, main body 100) and a brush head 200. The brush head 200 is detachably connected to the main body 100, and the main body 100 can drive the brush head 200 to vibrate to provide a cleaning function.

The host 100 may include a host housing 20, an image capturing mechanism 10, a driving mechanism (not shown), and the like. The main housing 20 may be used as a mounting carrier for other structural components in the main body 100, and may provide protection functions such as dust prevention and water prevention for other structural components in the main body 100.

The driving mechanism may be installed in the main chassis 20. It will be appreciated that the output shaft of the drive mechanism may be disposed through the main housing 20 and extend out relative to one end of the main housing 20. Accordingly, the brush head 200 is detachably connected to an output shaft of the driving mechanism, and the driving mechanism can drive the brush head 200 to vibrate.

As shown in fig. 1, the image capturing mechanism 10 may be used to capture images of the interior of a user's mouth. In one embodiment, the image capturing mechanism 10 may be fixedly mounted to the end of the main housing 20 adjacent the brush head 200. When a user uses the oral cleaning device to obtain an image of the inside of the oral cavity, the end of the host 100 provided with the image capturing mechanism 10 may be extended into the inside of the oral cavity so that the image capturing mechanism 10 obtains an image of the inside of the oral cavity of the user.

As shown in fig. 3-5, further, in some embodiments, image capture mechanism 10 may include an image capture member 11, a light source 12, and a polarizing component 13.

Wherein the image capturing member 11 is adapted to capture an image of the interior of the mouth of the user. In some embodiments, the image capturing element 11 may be a camera capable of capturing visible light images.

In other embodiments, the image capturing element 11 may also be an infrared camera, which may be used to obtain infrared images.

The image capturing element 11 may comprise a light entry side 111. Light reflected inside the mouth of the user can enter the image capturing element 11 through the light entrance side 111 so that the image capturing element 11 generates an image of the inside of the mouth of the user.

It will be appreciated that the interior of the mouth is typically of a darker brightness. In an embodiment, the light sources 12 may be arranged side by side on one side of the circumference of the image capturing member 11, and the light sources 12 may be arranged next to the image capturing member 11. In the embodiment, the light source 12 can be used for supplementing light to the inside of the oral cavity of the user, so that the brightness inside the oral cavity of the user is improved, and clear images inside the oral cavity can be collected by the image collecting piece 11. In some embodiments, the light source 12 can be a fill-in lamp capable of generating visible light.

Of course, in other embodiments, the light source 12 may also be a fill-in light capable of generating infrared light according to the type of the image capturing element 11. Alternatively, the light source 12 may include both a visible light fill-in lamp and an infrared light fill-in lamp.

As shown in fig. 1, 3 to 5, the light source 12 may include a light emitting side 121, i.e., a side from which light generated by the light source 12 is emitted. In an embodiment, the light exit side 121 may be located on a side of the light source 12 close to the light entrance side 111 of the image capturing element 11. In some embodiments, the light source 12 and the image capturing member 11 may be disposed in parallel along the axial direction of the host 100, and the light exiting side 121 of the light source 12 and the light entering side 111 of the image capturing member 11 may face the same direction of the host 100. The axial direction of the main body 100 may refer to an extending direction of the axis L.

The polarization component 13 may be disposed opposite to the light source 12 and the image capturing element 11, respectively, and the polarization component 13 may be located on the light emitting side 121 of the light source 12. It is understood that the polarizing component 13 can cover both the light exit side 121 of the light source 12 and the light entrance side 111 of the image capturing element 11. In an embodiment, the polarization component 13 may be used to isolate directly reflected light from entering the image capturing element 11.

During the use of the image capturing mechanism 10, the light generated by the light source 12 can enter the inside of the oral cavity of the user through the polarization component 13, and is reflected inside the oral cavity of the user and then projected to the polarization component 13, and then enters the image capturing component 11, and the image capturing component 11 generates an image of the inside of the oral cavity of the user.

It will be appreciated that the internal surfaces of the mouth are typically in a rugged form. When light is projected on the inner surface of the oral cavity, part of the light is subjected to diffuse reflection, and the part of the light is reflected inside the oral cavity of a user for multiple times and then is emitted. Meanwhile, part of the light is reflected directly (i.e. the part of the light is emitted after only one reflection inside the mouth of the user). However, the light directly reflected carries relatively more energy, and in image imaging, the part of light appears as a brighter light spot in the image, which affects the imaging effect of the surrounding image.

In the embodiment, the light rays which are directly reflected are isolated by the polarization component 13, so that the light rays which are directly reflected can be prevented from entering the image acquisition part 11, bright spots in the image can be avoided, the image imaging effect can be improved, a user can see clearer images, and the user experience is improved.

As shown in fig. 3 to 5, the image capturing mechanism 10 further includes a mounting bracket 14, which can be used as a carrier for the image capturing element 11 and the light source 12, so as to fixedly mount the image capturing element 11 and the light source 12 in the main housing 20. In one embodiment, the mounting bracket 14 may be fixedly mounted in the main chassis 20 by means of structural limitation, screw connection, clamping, bonding, or the like.

As shown in fig. 2-4, the mounting bracket 14 may include an integral bracket body 141 and mounting guide sleeve 142. The holder body 141 may have an arc plate structure, and a side surface of the holder body 141 may be closely attached to an inner surface of the main chassis 20. In an embodiment, the shape of the bracket body 141 can be adapted to the shape of the main chassis 20, so as to improve the assembly stability of the mounting bracket 14 and reduce the possibility of random shaking.

Of course, in other embodiments, the bracket body 141 and the mounting guide sleeve 142 may also be in a separate structure, and the bracket body 141 and the mounting guide sleeve 142 may be fixedly connected by bonding, screwing, or the like.

In some embodiments, the bracket body 141 may be provided with a first avoidance hole 1411 and a second avoidance hole 1412 in parallel, and the first avoidance hole 1411 and the second avoidance hole 1412 are both of a through hole structure. In an embodiment, the first avoidance hole 1411 and the second avoidance hole 1412 may be arranged side by side in the axial direction of the main body 100.

Referring to fig. 5, the light source 12 can be fixed to the side of the bracket body 141 away from the inner surface of the main chassis 20. Illustratively, the light source 12 may be fixedly connected to the bracket body 141 by means of screw connection, adhesion, or clamping. In an embodiment, the light emitting side 121 of the light source 12 may be opposite to the first avoiding hole 1411. Accordingly, the light generated by the light source 12 can be transmitted to the other side of the bracket body 141 through the first avoiding hole 1411.

The mounting guide sleeve 142 may be disposed around the circumference of the second avoiding hole 1412, and the mounting guide sleeve 142 may be communicated with the second avoiding hole 1412. The image capturing member 11 may be inserted from an end of the mounting guide sleeve 142 away from the second avoiding hole 1412, and the light incident side 111 of the image capturing member 11 may face the side of the second avoiding hole 1412. During the use of the image capturing mechanism 10, light may be projected onto the image capturing element 11 through the second avoiding hole 1412.

In the embodiment shown in fig. 2, 3 and 5, the shape of the mounting guide 142 can be adapted to the shape of the image capturing element 11, so that the mounting guide 142 can provide a radial position limitation for the image capturing element 11. In some embodiments, an end of the image capturing element 11 close to the light incident side 111 may be a step structure, an end of the image capturing element 11 close to the light incident side 111 may extend into the second avoiding hole 1412, and a step surface of an end of the image capturing element 11 close to the light incident side 111 may abut against a side of the bracket body 141 away from the inner surface of the main housing 20.

In some embodiments, a support platform 22 is further fixedly embedded on the main chassis 20. The supporting platform 22 can be abutted against one end of the image acquisition part 11 far away from the support body 141, so that the image acquisition part 11 is limited along the axial direction of the image acquisition part, and meanwhile, the mounting support 14 is limited. Thereby, the image capturing element 11 can be fixedly mounted on the mounting bracket 14, and the image capturing element 11 and the mounting bracket 14 can be fixedly mounted in the main chassis 20.

As shown in fig. 3 to 5, further, in some embodiments, a mounting platform 143 is further protruded from a side of the bracket body 141 away from the mounting guide 142, and an end of the mounting platform 143 away from the mounting guide 142 may be a flat surface. In an embodiment, the mounting platform 143 may be used to carry the polarization component 13, i.e., the polarization component 13 is located on a side of the mounting platform 143 away from the mounting guide 142. It is to be appreciated that first relief hole 1411 and second relief hole 1412 both extend through mounting platform 143.

Referring to fig. 2, in an embodiment, the main housing 20 may be formed with an assembling hole 21 for communicating the inside and the outside of the main housing 20. Light may travel to and from image capturing mechanism 10 and the interior of the user's mouth through mounting holes 21. In an embodiment, the mounting platform 143 may be inserted into the mounting hole 21, and a circumferential sidewall of the mounting platform 143 may be attached to an inner wall of the mounting hole 21. Accordingly, the polarization component 13 can be received in the assembly hole 21, and the inner wall of the assembly hole 21 can provide a radial limit for the polarization component 13.

In some embodiments, the polarizing component 13 may include a first linear polarizer 131 and a second linear polarizer 132. The first linear polarizer 131 and the second linear polarizer 132 may be disposed on the mounting platform 143 in parallel along the axial direction of the main unit 100. In an embodiment, the first linear polarizer 131 and the second linear polarizer 132 may be fixed with respect to the mounting platform 143 by structural limitation, adhesion, or clipping.

The first linear polarizer 131 may be opposite to the first avoiding hole 1411, and the first linear polarizer 131 and the light source 12 may be communicated through the first avoiding hole 1411. That is, the first linear polarizer 131 is opposite the light source 12, and the first linear polarizer 131 may be located on the light exit side 121 of the light source 12. The second linear polarizer 132 may be opposite to the second avoiding hole 1412, and the second linear polarizer 132 is communicated with the image capturing element 11 through the second avoiding hole 1412. That is, the second linear polarizer 132 may be opposite to the image capturing element 11, and the second linear polarizer 132 may be located at the light incident side 111 of the image capturing element 11.

In some embodiments, the first linear polarizer 131 may be a linear polarizer made of resin, glass, or quartz. The second linear polarizer 132 may be made of resin, glass, or quartz.

Referring to fig. 6, in an embodiment, the polarization direction of the second linear polarizer 132 is perpendicular to the polarization direction of the first linear polarizer 131.

During use of the image capturing mechanism 10, light generated by the light source 12 may be projected outward through the first linear polarizer 131. The first linear polarizer 131 may filter visible light having different polarization directions emitted from the light source 12. It will be appreciated that the first linear polarizer 131 may only allow light rays having the same polarization direction as itself to pass through. The polarized light passing through the first linear polarizer 131 may be projected inside the user's mouth.

Inside the user's mouth, a portion of the light is diffusely reflected and the polarization direction of the light is changed. When the part of the light is projected on the second linear polarizer 132, the second linear polarizer 132 may allow the light with the same polarization direction to pass through and be projected on the image capturing element 11, and the light with different polarization directions may be shielded.

Inside the user's mouth, there is also a part of the light that is reflected directly, and the polarization direction of the part of the light hardly changes. Therefore, the polarization direction of the portion of the light may be different from the polarization direction of the second linear polarizer 132. Therefore, the second linear polarizer 132 can isolate and shield the portion of light, and the portion of light is prevented from entering the image capturing element 11 and affecting the image forming effect.

As shown in fig. 4 and 5, in some embodiments, an end of the image capturing element 11 near the polarizing component 13 may protrude with respect to the light source 12, parallel to the optical axis direction of the image capturing element 11. That is, the perpendicular distance d between the end surface of the image capturing element 11 near the end of the polarizing element 13 and the side of the polarizing element 13 near the mounting platform 143 is parallel to the optical axis of the image capturing element 11 ₁ Is smaller than the vertical distance d between the end surface of the light source 12 close to the end of the polarization component 13 and the side of the polarization component 13 close to the mounting platform 143 ₂ . Therefore, the light emitted by the light source 12 can be effectively reduced from directly entering the image acquisition part 11, and the influence on the imaging effect is reduced.

As shown in fig. 3 to 5, further, in some embodiments, the image capturing mechanism 10 further includes a light equalizing device 151. The light equalizing device 151 may be opposite to the first linear polarizer 131, and the light equalizing device 151 may be located at a side of the first linear polarizer 131 away from the light source 12. In the use of image acquisition mechanism 10, even light device 151 can scatter the light through first linear polaroid 131 to increase the scattering angle of light, make light evenly shine inside user's oral cavity, promote surrounding brightness, avoid appearing the bright problem dark around the center, it is corresponding, also can improve the imaging of image.

In some embodiments, the light homogenizing device 151 may be a fresnel lens. Specifically, the light equalizing device 151 can be fabricated on a transparent lens 15. The shape of the transparent lens 15 can be adapted to the shape of the fitting hole 21. In an embodiment, the transparent lens 15 may be fixed in the mounting hole 21 by a tight fit, an adhesive, or a snap fit. Accordingly, the transparent lens 15 can cover both the first linear polarizer 131 and the second linear polarizer 132, and the transparent lens 15 can respectively abut against a side of the first linear polarizer 131 far away from the mounting platform 143 and a side of the second linear polarizer 132 far away from the mounting platform 143. Meanwhile, the fitting hole 21 may be closed by the transparent lens 15.

In one embodiment, the light equalizing device 151 can be formed in the transparent lens 15 at a position opposite to the first linear polarizer 131. The position of the transparent lens 15 opposite to the second linear polarizer 132 may be a plane mirror structure so that light can pass through smoothly.

In other embodiments, the light equalizing device 151 may also be a light equalizing film, a diffusing film, or the like.

When the oral cleaning device is used, clear internal images of the oral cavity of a user can be acquired through the image acquisition mechanism 10, so that the generation of bright spots is reduced, and the imaging effect of the images is improved.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. An image capturing mechanism, characterized in that the image capturing mechanism comprises:

the image acquisition piece comprises a light inlet side;

the light source is arranged on one side of the image acquisition part in the circumferential direction and comprises a light emergent side, and the light emergent side is positioned at one end, close to the light incident side, of the light source; and

the polarization component covers the light emitting side and the light incident side simultaneously, and is used for shielding the light which is directly reflected in the light generated by the light source and enters the image acquisition component.

2. The image capturing mechanism of claim 1, wherein the polarization assembly includes a first linear polarizer and a second linear polarizer, the polarization direction of the first linear polarizer being perpendicular to the polarization direction of the second linear polarizer;

the first linear polarizer is opposite to the light emergent side, and the second linear polarizer is opposite to the light incident side.

3. The image capturing mechanism of claim 1, wherein a perpendicular distance d between an end surface of the image capturing member near one end of the polarization assembly and the polarization assembly is parallel to an optical axis of the image capturing member ₁ Is smaller than the vertical distance d between the end surface of the light source close to one end of the polarization component and the polarization component ₂ 。

4. The image acquisition mechanism according to any one of claims 1 to 3, further comprising a light-homogenizing device, wherein the light-homogenizing device is opposite to the light source and is located on a side of the polarization component away from the light source;

the light-equalizing device is used for diffusing the light which penetrates through the polarization component from one side of the light source.

5. The image capturing mechanism as claimed in claim 4, wherein the light homogenizing device is a Fresnel lens.

6. The image capturing mechanism of claim 5, further comprising a transparent lens that covers both the light exit side and the light entry side;

the light equalizing device is arranged on one side, far away from the polarization component, of the light-transmitting lens and is positioned in the light-transmitting lens at a position opposite to the light source.

7. The image capturing mechanism of claim 6, wherein the transparent lens is configured as a flat mirror at a position opposite to the image capturing element.

8. The image capturing mechanism of claim 1, further comprising a mounting bracket, wherein the mounting bracket comprises a bracket body, the polarization assembly is disposed on one side of the bracket body, and the light source and the image capturing element are mounted on one side of the bracket body away from the polarization assembly;

the bracket body is provided with a first avoidance hole and a second avoidance hole which are parallel, the first avoidance hole is communicated with the light source and the polarization assembly, and the second avoidance hole is communicated with the image acquisition piece and the polarization assembly.

9. The image capturing mechanism of claim 8, wherein the mounting bracket further includes a mounting platform for supporting the polarizing assembly.

10. An oral cleaning apparatus comprising an image acquisition mechanism as claimed in any one of claims 1 to 9.

Images