CN219642061U - Lamp cup assembly and camera - Google Patents

Abstract

The utility model relates to a lamp cup assembly and a camera, wherein the lamp cup assembly comprises a lamp cup body, electric response fluid, a positive electrode and a negative electrode, wherein: the lamp cup body is provided with a liquid cavity and can be covered on the light source; an electrically responsive fluid is contained within the fluid chamber; the positive electrode and the negative electrode are respectively arranged at two ends of the liquid cavity along the direction of the light path of the light source, and can be electrically connected with an external power supply, so that when the direct-current voltage applied to the positive electrode and the negative electrode is changed, the tension of the electrically-responsive liquid can be changed, and the focal length of the lamp cup body can be changed. The electric response fluid can form a structure similar to a convex lens in the liquid cavity, when direct-current voltage is applied to the positive electrode and the negative electrode, the electric response fluid can generate a molecular accumulation effect, so that the shape of the electric response fluid is changed, the focal length of the lamp cup assembly is changed, the lamp cup assembly is simple in structure, zooming can be realized under the condition that the size of the lamp cup body is not changed, and occupied space is small.

Description

Lamp cup assembly and camera

Technical Field

The utility model relates to the technical field of lighting equipment, in particular to a lamp cup assembly and a camera.

Background

A light supplementing lamp for providing light supplementing measures for the camera is usually arranged in the existing camera. Because the focal length of the light supplementing lamp cup is usually fixed, when the camera encounters different distance and viewing angles in the use process, the light supplementing effect of the light supplementing lamp with only one fixed focal length is poor.

Therefore, a plurality of light compensating lamps with different focal lengths are arranged on a part of the cameras, and a plurality of variable angle lens assemblies are arranged in one light compensating lamp to improve the light compensating effect. However, this results in a more complex structure of the light filling lamp assembly, and a larger space is occupied in the camera, thereby resulting in a larger overall volume of the camera.

Disclosure of Invention

Based on this, it is necessary to provide a lamp cup assembly and a camera, which can realize zooming without changing the size of the lamp cup, and has a simple structure and a small occupied space.

The utility model provides a lamp cup assembly, comprising: the lamp cup body is provided with a liquid cavity and can be covered on the light source; an electrically responsive fluid contained within the liquid chamber; and the positive electrode and the negative electrode are respectively arranged at two ends of the liquid cavity along the direction of the light path of the light source, and can enable direct-current voltage of an external power supply to act on the electric response fluid through the positive electrode and the negative electrode, and the tension of the electric response fluid can be changed under the action of the direct-current voltage so as to change the shape of the electric response fluid at two ends along the direction of the light path of the light source.

In the lamp cup assembly, the electric response fluid can form a structure similar to a convex lens in the liquid cavity, when direct-current voltage is applied to the positive electrode and the negative electrode, the electric response fluid can generate a molecular accumulation effect, and the tension of the electric response fluid is changed, so that the shapes of the two ends of the electric response fluid along the direction of a light path of the light source are changed, the focal length of the lamp cup assembly is changed, the lighting effect of the light source is changed, the adjusting mode is simple, and the cost is lower; when the direct-current voltage is removed, the molecular accumulation effect of the electric response fluid disappears, the tension of the electric response fluid is restored to the state without the direct-current voltage, so that the shape of the electric response fluid is restored to the state without the direct-current voltage, and the focal length of the lamp cup assembly is restored to the state without the direct-current voltage. And when the direct current voltage is different in magnitude, the tension of the electric response fluid is different, so that the focal length of the lamp cup assembly can be adjusted by changing the direct current voltage, and the light source has various different focal length lighting effects. The lamp cup assembly is simple in structure, can realize zooming without changing the size of the lamp cup body, and occupies a small space.

In one embodiment, the lamp cup body includes a cover body and a polarizing member, and the polarizing member is disposed at an end of the cover body away from the light source.

So set up, the cover body can spotlight and reduce the light loss of light source, and the polarization piece can effectively filter the polarized light in the diffuse reflection, reduces the glare to the effectual injury that light caused user's eyes that has reduced.

In one embodiment, the cover body includes a sleeve portion, an inner diameter of the sleeve portion gradually increases from the light source to a side close to the polarizing element, and the liquid chamber is disposed in the sleeve portion.

So set up for the light that the light source launched can evenly spread behind sleeve portion, promotes the illuminating effect.

In one embodiment, the cover further includes a connection portion connected to a side of the sleeve portion away from the light source, and the polarizing element is detachably disposed on the connection portion.

So set up, the user can be according to the polarization angle of actual demand change polarization piece in order to adjust the polarization piece conveniently for the cover body is standardized material, and easy operation is convenient, has increased the ease of use of this lamp cup subassembly.

In one embodiment, one of the connection portion and the polarizer is provided with a buckle, and the other is provided with a clamping groove capable of being matched with the buckle in a clamping manner.

So set up, buckle and draw-in groove joint cooperation can be when realizing that polarization piece and connecting portion can dismantle the connection, guarantees stability and reliability when interconnect between them.

In one embodiment, a mounting groove is formed in one side, away from the sleeve portion, of the connecting portion, and the polarizing element is detachably embedded in the mounting groove.

So set up, the mounting groove can protect the polarization piece, avoids damaging because the polarization piece evagination easily, can also be convenient for the user simultaneously assemble the polarization piece, avoids need counterpoint repeatedly in the installation.

In one embodiment, the inner wall of the mounting groove is provided with an avoidance groove which is arranged at intervals with the buckle or the clamping groove, and the polarizer is provided with a holding position corresponding to the avoidance groove.

The arrangement is that the user can contact the holding position of the polarized light piece through the avoiding groove and detach the polarized light piece from the mounting groove; the holding potential can increase friction force to facilitate the user to hold and detach the polarizer.

In one embodiment, the polarizer is configured as a wedge-shaped polarizing structure or a compound eye polarizing structure; and/or the polarized light angle of the polarized light piece is 80 degrees, 100 degrees or 120 degrees.

The wedge-shaped polarizing structure and the compound eye polarizing structure can refract the light passing through the polarizing piece, so that the area of the light emitted by the light source is enlarged, the intensity of the eyes of a user is reduced, and the light is softer; the light emitted by the light source positioned at the high position can deflect to the ground for irradiation due to the fact that the polarization angle of the polarization piece is large, so that the light is prevented from directly irradiating eyes of a user, and the safety of the light source in use is enhanced.

The present utility model also provides a camera comprising: a housing; the light supplementing lamp is arranged in the shell; and the lamp cup assembly is arranged on the shell and can cover the light supplementing lamp, so that the light supplementing lamp can emit light outwards through the lamp cup assembly.

The arrangement can change the light supplementing focal length of the light supplementing lamp by applying direct-current voltage to the positive electrode and the negative electrode, thereby changing the light supplementing effect of the light supplementing lamp and effectively improving the use diversification and zooming capability of the camera; and, the occupation space of lamp cup subassembly in the casing is less to can avoid increasing the whole volume of camera.

In one embodiment, the housing is provided with an assembly hole, the lamp cup body comprises a cover body and a polarizing member, the cover body is connected to the assembly hole in a sealing mode and covers the light supplementing lamp, and the polarizing member is detachably arranged at one end, far away from the light supplementing lamp, of the cover body.

So set up, be difficult to damage the casing when changing the polaroid, reduce the volume of scrapping of casing, also can not influence the leakproofness in the casing simultaneously, avoid external steam or dust to get into in the casing and influence the normal work of camera or the inside other components of casing at the in-process of changing the polaroid.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present utility model, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic perspective view of a lamp cup assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of FIG. 1 at another angle according to the present utility model;

FIG. 3 is a schematic view of the explosion structure of FIG. 2 provided by the present utility model;

FIG. 4 is a schematic structural view of the polarizer of FIG. 2 according to the present utility model;

FIG. 5a is a schematic zoom diagram of the lamp cup assembly of FIG. 1 with no voltage applied thereto in accordance with the present utility model;

FIG. 5b is a schematic view of a zoom lens assembly of FIG. 1 with voltage applied thereto in accordance with the present utility model;

fig. 6 is a schematic view of an exploded structure of a camera according to an embodiment of the present utility model.

Reference numerals: 1. a lamp cup body; 11. a liquid chamber; 12. a cover body; 121. a connection part; 1211. a mounting groove; 1212. a clamping groove; 1213. an avoidance groove; 122. a sleeve portion; 13. a polarizing member; 131. a buckle; 132. a holding position; 133. a wedge-shaped polarizing structure; 134. a compound eye polarizing structure; 2. a positive electrode; 3. a negative electrode; 4. a housing; 41. a fitting hole; 42. a window; 5. an electrically responsive fluid; 6. a camera is provided.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present utility model for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in the description of the present utility model includes any and all combinations of one or more of the associated listed items.

In the existing video camera, a light supplementing lamp for providing light supplementing measures for the video camera is usually arranged, when a lens used by the video camera is a zoom lens, the angle of view of a long focal end and a wide angle end of the lens are different, the angle of view of the long focal end is smaller, and the angle of view of the wide angle end is larger. The focal length of the light compensating lamp cup is usually fixed, which results in poor light compensating effect of only one light compensating lamp with fixed focal length when the camera encounters different distance and viewing angle in the use process.

Therefore, two or more light supplementing lamps are arranged on part of the cameras, the light supplementing lamps with small light supplementing angles are suitable for the condition that the lens uses the long focal end, and the light supplementing lamps with large light supplementing angles are suitable for the condition that the lens uses the wide-angle end. This results in at least twice the power consumption and heat dissipation required for light filling as a single light filling lamp, and a higher light filling cost and a larger space occupation in the camera. There are also some cameras that provide a plurality of variable angle lens assemblies in one light filling lamp, for example, the lens assemblies include a reciprocating member, a common lens, and a plurality of fresnel lenses (threaded lenses), and the fresnel lenses and the common lens periodically cover the light filling openings under the driving of the reciprocating member, so that the variable angle lens assemblies are switched back and forth in a plurality of focal length states, thereby achieving the effect of multi-angle light filling. However, the reciprocating member and the plurality of fresnel lenses may result in a more complex structure of the light compensating lamp, higher cost, and larger space occupation in the camera, resulting in a larger overall volume of the camera.

In order to solve the above problems, as shown in fig. 1 to 5b, the present utility model firstly provides a lamp cup assembly, which can realize zooming without changing the size of the lamp cup, so that the light supplementing lamp has the light supplementing effect of different focal lengths, and the lamp cup assembly has the advantages of simple structure, small occupied space and low cost. The lamp cup assembly can be applied to various light sources such as a light supplementing lamp and the like needing to change focal length, and the utility model is not particularly limited herein.

As shown in fig. 1, 5a and 5b, in particular, the lamp cup assembly comprises a lamp cup body 1, an electrically responsive fluid 5, a positive electrode 2 and a negative electrode 3, wherein: the lamp cup body 1 is provided with a liquid cavity 11 and can be covered on a light source; the electroresponsive fluid 5 is contained within the fluid chamber 11; along the direction of the light source light path, the positive electrode 2 and the negative electrode 3 are respectively arranged at two ends of the liquid cavity 11, direct-current voltage of an external power supply can act on the electric response fluid 5 through the positive electrode 2 and the negative electrode 3, and the tension of the electric response fluid 5 can be changed under the action of the direct-current voltage so as to change the shape of the electric response fluid 5 along the two ends of the direction of the light source light path.

As described above, the focal length of the existing light compensating lamp is usually fixed, and although the light compensating effect can be improved by setting a plurality of light compensating lamps with different focal lengths or setting a plurality of variable angle lens assemblies in one light compensating lamp, the light compensating lamp assembly is complex in structure and occupies a large space in the camera. In the lamp cup assembly provided by the embodiment of the utility model, the volume of the lamp cup body 1 is smaller, and the space of the liquid cavity 11 is smaller, so that the electric response fluid 5 can form a structure similar to a convex lens in the liquid cavity 11. As shown in fig. 5a to 5b, when a direct current voltage is applied to the positive electrode 2 and the negative electrode 3, the electric response fluid 5 generates a molecular accumulation effect, and the tension of the electric response fluid 5 is changed, so that the shape of both ends of the electric response fluid 5 along the direction of the light path of the light source is changed, namely, the curvature radius of the outer surface of the convex lens is changed, thereby changing the focal length of the lamp cup assembly; when the direct-current voltage is removed, the molecular accumulation effect of the electric response fluid 5 disappears, and the tension of the electric response fluid 5 is restored to the state without the direct-current voltage, so that the shape of the electric response fluid 5 is restored to the state without the direct-current voltage, and the focal length of the lamp cup assembly is restored to the state without the direct-current voltage. The lamp cup assembly can change the focal length by applying direct-current voltage to the positive electrode 2 and the negative electrode 3, so that the lighting effect of the light source is changed, the adjustment mode is simple, and the cost is low; and, this lamp cup subassembly's simple structure does not need to increase the quantity of lamp cup and lens to can realize zooming under the condition that does not change lamp cup body 1 size, occupation space is less.

When the direct current voltages are applied to the positive electrode 2 and the negative electrode 3, the tension of the electroresponse fluid 5 is different, the shapes of the electroresponse fluid 5 along the two ends of the light path of the light source are also different, and the focal length of the lamp cup assembly is also different, so that the focal length of the lamp cup assembly can be adjusted by changing the direct current voltages applied to the positive electrode 2 and the negative electrode 3, and the light source has various different focal length lighting effects.

The positive electrode 2 and the negative electrode 3 can extend to the outside of the lamp cup body 1 through wires and are connected with an external power supply. The electroresponsive fluid 5 may be a diester mixture of an appropriate amount of butyric acid and adipic acid, and can be made to have a visible light transmittance of 90% or more by mixing an appropriate amount of polyvinyl chloride. The light source may be a visible light source or an infrared light source, etc., and the present utility model is not particularly limited herein.

As shown in fig. 1 to 2, the lamp cup body 1 includes a cover 12 and a polarizer 13, and the polarizer 13 is disposed at an end of the cover 12 away from the light source. The cover body 12 can concentrate light and reduce the light loss of the light source, the polarized light piece 13 can effectively filter polarized light in diffuse reflection, glare is reduced, and the damage of the light rays to eyes of a user caused by the light rays emitted by the light source can be effectively reduced after the light rays are filtered by the polarized light piece 13.

As shown in fig. 4, the polarizer 13 is provided as a wedge-shaped polarizing structure 133 or a compound eye polarizing structure 134. The wedge-shaped polarizing structure 133 is a structure simulating the compound eyes of insects, and the surface of the polarizing member 13 is convexly provided with a plurality of wedge-shaped protrusions. Both the wedge-shaped polarizing structure 133 and the compound eye polarizing structure 134 can refract the light passing through the polarizer 13, so that the area of the light emitted by the light source is enlarged, the intensity of the eyes of the user is reduced, and the light is softer. The polarizing angle of the polarizing element 13 is 80 °, 100 °, or 120 °. The polarizing angle of the polarizing element 13 is larger, so that the light emitted by the light source positioned at a high position can be deflected to irradiate on the ground, the light is prevented from directly irradiating eyes of a user, and the safety of the light source in use is enhanced. The user can select the polarizer 13 with proper type and polarization angle according to the actual requirement so as to enlarge the application range of the lamp cup assembly.

As shown in fig. 1 and 5, the cover 12 includes a sleeve portion 122, and the inner diameter of the sleeve portion 122 gradually increases from the light source to the side closer to the polarizer 13, and the liquid chamber 11 is provided in the sleeve portion 122. In this way, the light emitted by the light source can be uniformly diffused after passing through the sleeve portion 122, so as to improve the illumination effect. The inner wall of the sleeve portion 122 may be a truncated cone shape as shown, or may have a diverging structure such as a triangular prism, a rectangular prism, or the like. The outer wall of the sleeve portion 122 may be configured to match the shape of the inner wall to reduce the size of the sleeve portion 122, and may be configured to have other shapes such as a cylindrical shape, as long as the sleeve portion can be covered on the light source.

As shown in fig. 1 and 3, the cover 12 further includes a connection portion 121 connected to a side of the sleeve portion 122 away from the light source, and the polarizer 13 is detachably disposed on the connection portion 121. When factors such as light supplementing focal length, mounting position or test requirement of the light source change and the polarization angle needs to be changed, a user only needs to detach the original polarized light piece 13 from the connecting part 121 and remount the new polarized light piece 13 to the connecting part 121 without detaching the cover body 12, so that the cover body 12 is a standardized material, the polarization angle of the polarized light piece 13 can be conveniently adjusted according to actual requirements, the operation is simple and convenient, and the usability of the lamp cup assembly is improved.

As shown in fig. 3, one of the connection portion 121 and the polarizer 13 is provided with a clip 131, and the other is provided with a clip groove 1212 capable of being engaged with the clip 131. The buckle 131 and the clamping groove 1212 are matched in a clamping manner, so that the polarized light piece 13 and the mounting groove 1211 can be detachably connected, and meanwhile, the stability and the reliability of the polarized light piece 13 and the mounting groove 1211 during the mutual connection can be guaranteed. Meanwhile, the buckle 131 and the clamping groove 1212 can also play a role in rapidly positioning the polarizing element 13, so that the user can assemble the polarizing element 13 conveniently.

As shown in fig. 2 to 3, a mounting groove 1211 is provided on a side of the connection portion 121 facing away from the sleeve portion 122, and the polarizer 13 is detachably embedded in the mounting groove 1211. The polarizer 13 is embedded in the mounting groove 1211, so that the polarizer 13 can be protected from being damaged easily due to the protruding of the polarizer 13, and meanwhile, the mounting groove 1211 can further facilitate the assembly of the polarizer 13 by a user, so that repeated alignment is avoided in the mounting process.

In the illustrated embodiment, two clamping grooves 1212 are oppositely formed in the inner wall of the mounting groove 1211, two buckles 131 are oppositely and convexly formed on the outer peripheral wall of the polarizer 13, the buckles 131 are arranged in one-to-one correspondence with the clamping grooves 1212, and when the polarizer 13 is embedded into the mounting groove 1211, the buckles 131 are in clamping fit with the clamping grooves 1212 so as to fixedly connect the polarizer 13 and the mounting groove 1211. Of course, the number of the buckles 131 and the slots 1212 may be three, four or more; alternatively, a plurality of hooks 131 may be protruded from the inner wall of the mounting groove 1211 at intervals, and a plurality of locking grooves 1212 may be formed in the outer peripheral wall of the polarizer 13.

In another embodiment, the buckle 131 may be provided directly on the side of the connecting portion 121 away from the sleeve portion 122 or the slot 1212 may be provided, and the slot 1212 may be provided or the buckle 131 may be provided at a corresponding position on the polarizing member 13. Of course, in other embodiments, the polarizer 13 may be detachably connected to the connection portion 121 by other means such as screws or threads, so long as the stability and reliability of the connection between the two can be ensured, and the present utility model is not limited herein.

As shown in fig. 2 to 3, since the polarizer 13 is embedded in the installation groove 1211, in order to avoid difficulty in removing the polarizer 13 by a user, the inner wall of the installation groove 1211 is further provided with a avoiding groove 1213 spaced from the buckle 131 or the clamping groove 1212, and the polarizer 13 is provided with a holding position 132 corresponding to the avoiding groove 1213. The user can contact the grip position 132 of the polarizer 13 through the escape groove 1213, and detach the polarizer 13 from the inside of the installation groove 1211 through the grip position 132, and the grip position 132 can increase the friction between the user's finger and the polarizer 13, so that the user can grip and detach the polarizer 13 conveniently.

The holding position 132 may be a groove formed on the outer periphery of the polarizer 13, or may be a bar-shaped protrusion, a dot-shaped protrusion, or the like protruding on the outer periphery of the polarizer 13, and the size of the protrusion is smaller than that of the avoiding groove 1213, so long as the holding position 132 can be ensured to increase friction force so as to facilitate the user to detach the polarizer 13.

As shown in fig. 6, the present utility model further provides a camera, which includes a camera 6, a housing 4, a light supplementing lamp (not shown) and the above-mentioned lamp cup assembly, wherein the camera 6 and the light supplementing lamp are disposed in the housing 4; the lamp cup assembly is arranged on the shell 4 and can be covered on the light supplementing lamp, so that the light supplementing lamp emits light outwards through the lamp cup assembly. Therefore, the light supplementing focal length of the light supplementing lamp can be changed by applying direct-current voltage to the positive electrode 2 and the negative electrode 3, so that the light supplementing effect of the light supplementing lamp is changed, and the use diversity and zooming capability of the camera are effectively improved; and, this lamp cup subassembly's simple structure, occupation space is less in casing 4 to can avoid increasing the whole volume of camera.

As shown in fig. 6, the housing 4 is provided with an assembly hole 41 and a window 42, the camera 6 shoots an image through the window 42, the cover 12 is hermetically connected to the assembly hole 41 and covers the light supplementing lamp, and the polarizing member 13 is detachably disposed at one end of the cover 12 far away from the light supplementing lamp. When factors such as the light compensating focal length of the light compensating lamp, the mounting position of the camera or the test requirement are changed and the polarizer 13 needs to be replaced, a user only needs to detach the original polarizer 13 from the connecting portion 121 and reinstall a new polarizer 13 to the connecting portion 121, so that the maintainability of the camera is improved. In the disassembly and assembly process, the shell 4 is not easy to damage, the scrappage of the shell 4 is reduced, and the utilization rate of materials is effectively improved; meanwhile, the tightness in the shell 4 is not affected, and the influence of the normal operation of the camera 6 or other elements in the shell 4 caused by the entering of external water vapor or dust into the shell 4 in the process of replacing the polarizing element 13 is avoided.

Wherein the cover 12 can be sealed and reliably connected with the edge of the assembly hole 41 by dispensing. Alternatively, the cover 12 may be connected to the edge of the fitting hole 41 by means of a screw, a clip, or the like, and a sealing member may be provided between the cover 12 and the edge of the fitting hole 41, so long as the reliability of the connection therebetween is ensured while the sealability is ensured.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be determined from the following claims.

Claims (10)

1. A lamp cup assembly, comprising:

a lamp cup body (1) provided with a liquid chamber (11) and capable of being covered on a light source;

an electrically responsive fluid (5) contained within the liquid chamber (11); the method comprises the steps of,

the positive electrode (2) and the negative electrode (3) are arranged at two ends of the liquid cavity (11) along the direction of the light path of the light source, direct-current voltage of an external power supply can act on the electric response fluid (5) through the positive electrode (2) and the negative electrode (3), and the tension of the electric response fluid (5) can be changed under the action of the direct-current voltage so as to change the shape of the electric response fluid (5) along the two ends of the direction of the light path of the light source.

2. The lamp cup assembly according to claim 1, wherein the lamp cup body (1) comprises a cover body (12) and a polarizing element (13), and the polarizing element (13) is arranged at one end of the cover body (12) far away from the light source.

3. The lamp cup assembly according to claim 2, wherein the cover body (12) includes a sleeve portion (122), an inner diameter of the sleeve portion (122) gradually increases from the light source to a side closer to the polarizing member (13), and the liquid chamber (11) is provided in the sleeve portion (122).

4. A lamp cup assembly according to claim 3, wherein the cover body (12) further comprises a connecting portion (121) connected to a side of the sleeve portion (122) remote from the light source, and the polarizing member (13) is detachably provided to the connecting portion (121).

5. The lamp cup assembly according to claim 4, wherein one of the connecting portion (121) and the polarizing member (13) is provided with a buckle (131), and the other is provided with a clamping groove (1212) capable of being matched with the buckle (131) in a clamping manner.

6. The lamp cup assembly according to claim 4, wherein a mounting groove (1211) is provided on a side of the connecting portion (121) facing away from the sleeve portion (122), and the polarizing member (13) is detachably embedded in the mounting groove (1211).

7. The lamp cup assembly according to claim 6, wherein an avoidance groove (1213) is provided on an inner wall of the mounting groove (1211), and the polarizer (13) is provided with a holding position (132) corresponding to the avoidance groove (1213).

8. The lamp cup assembly according to any one of claims 2-7, wherein the polarizing member (13) is provided as a wedge-shaped polarizing structure (133) or a compound eye polarizing structure (134); and/or the number of the groups of groups,

the polarization angle of the polarizer (13) is 80 DEG, 100 DEG or 120 deg.

9. A video camera, comprising:

a housing (4);

the light supplementing lamp is arranged in the shell (4); the method comprises the steps of,

the lamp cup assembly according to any one of claims 1-8, being arranged in the housing (4) and being arranged to cover the light filling lamp such that the light filling lamp emits light outwards through the lamp cup assembly.

10. The camera according to claim 9, wherein the housing (4) is provided with an assembly hole (41), the lamp cup body (1) comprises a cover body (12) and a polarizing element (13), the cover body (12) is connected to the assembly hole (41) in a sealing manner and covers the light supplementing lamp, and the polarizing element (13) is detachably arranged at one end, far away from the light supplementing lamp, of the cover body (12).