WO2024124930A1

WO2024124930A1 - Scheimpflug lens assembly and camera

Info

Publication number: WO2024124930A1
Application number: PCT/CN2023/113093
Authority: WO
Inventors: 王益君
Original assignee: 杭州海康机器人股份有限公司
Priority date: 2022-12-13
Filing date: 2023-08-15
Publication date: 2024-06-20
Also published as: CN218956882U; WO2024124930A9

Abstract

A Scheimpflug lens assembly and a camera. The Scheimpflug lens assembly comprises a lens (1), a rotating body (2), a base (3) and a flexible pipe fitting (4); one side of the rotating body (2) is connected to the lens (1), and the rotating body (2) is provided with a first light-transmitting hole (21) corresponding to the lens (1); the rotating body (2) is connected to the base (3), and the rotating body (2) can rotate around a first rotating axis (L) relative to the base (3); the extending direction of the first rotating axis (L) is perpendicular to the optical axis direction of the lens (1); a second light-transmitting hole (31) corresponding to the first light-transmitting hole (21) is provided on the base (3), and the side of the base (3) away from the rotating body (2) is configured to be connected to a camera body; the end surface of one end of the flexible pipe fitting (4) is in contact with and connected to the rotating body (2) and is communicated with the first light-transmitting hole (21), and the end surface of the other end of the flexible pipe fitting (4) is in contact with and connected to the base (3) and is communicated with the second light-transmitting hole (31).

Description

A Sham lens assembly and camera

This application claims the priority of the Chinese patent application filed with the China Patent Office on December 13, 2022, with application number 202223343381.2 and invention name “A Sham lens assembly and camera”, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the field of optical imaging technology, and in particular to a Sham lens assembly and a camera.

Background technique

Sham lens is also called tilt-shift lens. Sham lens can use Sham's law to shoot images with strong effects in depth of field and perspective. Sham's law states that when the extended planes of the three planes, the subject plane, the image plane and the lens plane, intersect on the same straight line, a clear image can be obtained. Sham lens can be used in machine vision application scenarios to improve the situation where there are objects exceeding the depth of field or the situation where a clear image cannot be captured due to the limitation of the camera installation angle.

In the related art, the lens angle of the Sham lens can be adjusted, so that the position of the lens plane can be adjusted, so that the extended planes of the three planes, the subject plane, the image plane, and the lens plane can intersect on the same straight line. The current Sham lens has problems such as poor dustproof effect after a long time and a small lens angle adjustment range, which affects the imaging effect of the camera.

Summary of the invention

The purpose of the embodiments of the present application is to provide a Sham lens assembly and a camera, so as to increase the angle adjustment range of the lens in the Sham lens assembly, improve the sealing effect of the Sham lens assembly, and improve the imaging effect of the camera. The specific technical solution is as follows:

The embodiment of the first aspect of the present application provides a Sham lens assembly, the Sham lens assembly comprising: a lens; a rotating body, one side of the rotating body is connected to the lens, and the rotating body is provided with a first light-transmitting hole corresponding to the lens; a base, the rotating body is connected to the base, and the rotating body can rotate around a first rotating shaft relative to the base, the extension direction of the first rotating shaft is perpendicular to the optical axis direction of the lens, and the base is provided with a second light-transmitting hole corresponding to the first light-transmitting hole. A light hole, the side of the base away from the rotating body is used to connect with the camera body; a flexible tube, one end surface of the flexible tube is in contact with the rotating body and connected with the first light hole, and the other end surface of the flexible tube is in contact with the base and connected with the second light hole.

In some embodiments, the rotating body includes a first main body portion, a first rotating shaft portion and a second rotating shaft portion, and along the extension direction of the first rotating shaft, the first rotating shaft portion and the second rotating shaft portion are respectively fixedly arranged on both sides of the first main body portion, and the first light-transmitting hole is arranged on the first main body portion; the base includes a second main body portion, a first end cover and a second end cover, and along the extension direction of the first rotating shaft, the first end cover and the second end cover are located on both sides of the second main body portion and connected to the second main body portion, the second light-transmitting hole is arranged on the second main body portion, the first end cover is provided with a first mounting hole, and the first rotating shaft portion can be relatively rotatably placed in the first mounting hole, and the second end cover is provided with a second mounting hole, and the second rotating shaft portion can be relatively rotatably placed in the second mounting hole.

In some embodiments, the Sham lens assembly also includes: a first corrugated gasket, which is sleeved outside the first rotating shaft portion, the first corrugated gasket is located between the first main body portion and the first end cover, and along the extension direction of the first rotating shaft, two sides of the first corrugated gasket are respectively abutted against the first main body portion and the first end cover; and/or a second corrugated gasket, which is sleeved outside the second rotating shaft portion, the second corrugated gasket is located between the first main body portion and the second end cover, and along the extension direction of the first rotating shaft, two sides of the second corrugated gasket are respectively abutted against the first main body portion and the second end cover.

In some embodiments, along an extension direction perpendicular to the first rotating shaft, at least one third mounting hole is provided on the first end cover, and the third mounting hole is communicated with the first mounting hole, and at least one fourth mounting hole is provided on the second end cover, and the fourth mounting hole is communicated with the second mounting hole; the Sham lens assembly further includes at least one first fixing screw and at least one second fixing screw, the first fixing screw is passed through the third mounting hole and abuts against the first rotating shaft portion, and the first fixing screw The two set screws are passed through the fourth mounting hole and abut against the second rotating shaft portion.

In some embodiments, a surface of the first end cover on one side away from the second main body portion is provided with an angle scale mark, and a surface of the first rotating shaft portion on one side away from the first main body portion is provided with a positioning mark for indicating the angle scale mark.

In some embodiments, the first end cap and the second main body are connected as an integral structure, and the second end cap and the second main body are detachably connected; or the first end cap and the second main body are detachably connected, and the second end cap and the second main body are connected as an integral structure.

In some embodiments, the flexible tube is a corrugated tube.

In some embodiments, the flexible pipe member includes a plurality of flexible tubes, and the plurality of flexible tubes are sequentially sleeved in a direction approaching the rotating body, and one of two adjacent flexible tubes can slide relative to the other.

In some embodiments, the Sham lens assembly further includes a sealing sheet, which is disposed on a side of the base away from the lens and covers the second light-transmitting hole, and is made of a light-transmitting material.

An embodiment of the second aspect of the present application provides a camera, comprising a camera body and any one of the above-mentioned Sham lens assemblies, wherein the Sham lens assembly is connected to the camera body.

In the Sham lens assembly provided in the embodiment of the present application, the Sham lens assembly includes a lens, a rotating body, a base and a flexible pipe. When the Sham lens assembly is installed on the camera, the base in the Sham lens assembly is connected to the camera body, and the camera body is provided with devices such as an image sensor and an image processor. The lens includes a lens, a first light-transmitting hole corresponding to the lens is provided on the rotating body, and a second light-transmitting hole corresponding to the first light-transmitting hole is provided on the base, that is, along the optical axis direction of the lens, the orthographic projection of the lens covers the orthographic projection of the first light-transmitting hole, and the orthographic projection of the first light-transmitting hole partially or completely overlaps with the orthographic projection of the second light-transmitting hole, and the first light-transmitting hole and the second light-transmitting hole are used to prevent the rotating body and the base from blocking external light, so that the external light can smoothly pass through the rotating body and the base to reach the camera body after entering the lens, thereby being reflected by the camera body. The image sensor inside is received. The lens is connected to the rotating body, and the rotating body is rotationally connected to the base. Therefore, when the rotating body rotates relative to the base, it can drive the lens connected to the rotating body to rotate synchronously, so as to adjust the lens angle. One end surface of the flexible pipe is in contact with and connected to the rotating body, and the other end surface of the flexible pipe is in contact with and connected to the base, and the two ends of the flexible pipe are respectively connected to the first light-transmitting hole and the second light-transmitting hole. The flexible pipe is used to connect the first light-transmitting hole and the second light-transmitting hole, and seal the first light-transmitting hole and the second light-transmitting hole. The flexible pipe is used to form a dust-proof sealing cavity between the rotating body and the base, which can prevent dust, water vapor and other impurities from entering the Sham lens assembly through the first light-transmitting hole and the second light-transmitting hole during the rotation of the rotating body relative to the base, thereby increasing the sealing of the Sham lens assembly, reducing the probability of impurities entering the camera body through the Sham lens assembly and affecting electronic devices such as image sensors, and improving the imaging effect of the camera. In addition, the flexible tube can undergo corresponding deformation when the rotating body rotates relative to the base. The flexible tube can achieve deformation and bending at a large angle and will not limit the rotation angle of the rotating body and the lens. This allows the lens in the Sham lens assembly to be adjusted over a large angle range, giving the lens a larger angle adjustment range, further improving the imaging effect of the camera.

Of course, any product implementing the present application does not necessarily need to achieve all of the advantages described above at the same time.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

FIG1 is a schematic diagram of an exploded structure of a Sham lens assembly in some embodiments of the present application;

FIG2 is a schematic diagram of the structure of a Sham lens assembly after being cut along the extension direction of the first rotation axis in some embodiments of the present application;

FIG3 is a schematic diagram of the structure of a Sham lens assembly after being cut along a direction perpendicular to the extension direction of the first rotation axis in some embodiments of the present application;

FIG4 is a cross-sectional view of a Sham lens assembly cut along the extending direction of the first rotating axis in some embodiments of the present application;

FIG5 is a partial structural schematic diagram of a Sham lens assembly in some embodiments of the present application;

FIG. 6 is a schematic diagram of the structure of a first corrugated gasket in some embodiments of the present application.

Figure numerals: first rotating shaft L; lens 1, lens barrel 11, lens 12; rotating body 2, first light transmission hole 21, first main body 22, first rotating shaft 23, positioning mark 231, second rotating shaft 24; base 3, second light transmission hole 31, second main body 32, first end cover 33, first mounting hole 331, third mounting hole 332, first set screw 333, angle scale mark 334, second end cover 34, second mounting hole 341, fourth mounting hole 342, second set screw 343, countersunk groove 35, fifth mounting hole 36; flexible pipe 4; fastener 5; first corrugated gasket 6; second corrugated gasket 7; sealing sheet 8.

Detailed ways

In order to make the purpose, technical scheme, and advantages of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and/or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and/or combinations thereof. The method steps, processes, and operations described in the text are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures. The spatially relative terms used herein are intended to include "inside,""outside,""inside,""outside,""below,""beneath,""above,""above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, then an element described as "below" or "below other elements or features" would subsequently be oriented as "above" or "above other elements or features." Thus, the example term "below" may include both above and below orientations. The device may be otherwise oriented, such as rotated 90 degrees or in other orientations, and the spatially relative descriptors used herein are interpreted accordingly.

In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

In order to increase the angle adjustment range of the lens in the Sham lens assembly, improve the sealing effect of the Sham lens assembly, and improve the imaging effect of the camera, the present application provides a Sham lens assembly and a camera. The Sham lens assembly and the camera provided by the embodiment of the present application are described in detail below in conjunction with the accompanying drawings. Among them, the camera includes a camera body, the camera body includes a shell and an electronic device placed inside the shell, the Sham lens assembly is connected to the shell of the camera body, and the electronic device includes but is not limited to an image sensor, an image processor, etc. The camera includes but is not limited to an industrial camera, a civilian camera, etc.

An embodiment of the first aspect of the present application provides a Sham lens assembly, as shown in Figures 1 to 4, the Sham lens assembly includes a lens 1, a rotating body 2, a base 3 and a flexible tube 4; wherein, one side of the rotating body 2 is connected to the lens 1, and the rotating body 2 is provided with a first light-transmitting hole 21 corresponding to the lens 1; the rotating body 2 is connected to the base 3, and the rotating body 2 can rotate around a first rotation axis L relative to the base 3, and the extension direction of the first rotation axis L is perpendicular to the optical axis direction of the lens 1, and the base 3 is provided with a second light-transmitting hole 31 corresponding to the first light-transmitting hole 21, and the side of the base 3 away from the rotating body 2 is used for connection with the camera body; one end face of the flexible tube 4 is in contact with the rotating body 2 and connected to the first light-transmitting hole 21, and the other end face of the flexible tube 4 is in contact with the base 3 and connected to the second light-transmitting hole 31.

In the embodiment of the present application, as shown in FIG2 , the lens 1 may include a lens barrel 11 and a lens 12. The lens 12 is placed in the lens barrel 11 and fixedly connected to the lens barrel 11. The lens barrel 11 is used to accommodate and carry the lens 12. Optionally, one end of the lens barrel 11 is placed in the first light-transmitting hole 21 of the rotating body 2 and is connected to the first light-transmitting hole 21. Optionally, the lens 1 and the rotating body 2 may be connected by a threaded connection. Specifically, a threaded structure is provided on the inner wall of the first light-transmitting hole 21, and a part of the structure of the lens barrel 11 is placed in the first light-transmitting hole 21 and is threadedly connected to the threaded structure. When the lens 1 and the rotating body 2 are threadedly connected, the distance between the lens 12 of the lens 1 and the image sensor in the camera body can be adjusted by adjusting the threaded connection depth between the lens 1 and the rotating body 2.

In the embodiment of the present application, as shown in FIG. 3 and FIG. 4 , one end surface of the flexible tube 4 is in contact with, adhered to, and fixedly connected to the lower surface of the rotating body 2, and the other end of the flexible tube 4 is in contact with, adhered to, and fixedly connected to the upper surface of the base 3. One end of the flexible tube 4 is arranged around the outer circumference of the first light-transmitting hole 21 and is connected to the first light-transmitting hole 21, and the other end of the flexible tube 4 is arranged around the outer circumference of the second light-transmitting hole 31 and is connected to the second light-transmitting hole 31, so that after external light enters the lens 1, it can pass through the first light-transmitting hole 21, the flexible tube 4, and the second light-transmitting hole 31 in sequence to enter the interior of the camera body. The flexible tube 4 is made of a flexible material, and the flexible tube 4 can be bent under the action of an external force. When the rotating body 2 rotates relative to the base 3, the flexible tube 4 is deformed under the action of the rotating body 2.

In the Sham lens assembly provided by the embodiment of the present application, a first light-transmitting hole 21 corresponding to the lens 1 is provided on the rotating body 2, and a second light-transmitting hole 31 corresponding to the first light-transmitting hole 21 is provided on the base 3, that is, along the optical axis direction of the lens 1, the orthographic projection of the lens 12 of the lens 1 covers the orthographic projection of the first light-transmitting hole 21, and the orthographic projection of the first light-transmitting hole 21 partially or completely overlaps with the orthographic projection of the second light-transmitting hole 31, and the first light-transmitting hole 21 and the second light-transmitting hole 31 are used to prevent the rotating body 2 and the base 3 from blocking the external light, so that the external light can smoothly pass through the rotating body 2 and the base 3 to reach the camera body after entering the lens 1, and thus be received by the image sensor in the camera body. The lens 1 is connected to the rotating body 2, and the rotating body 2 is rotatably connected to the base 3, so that when the rotating body 2 rotates relative to the base 3, it can drive the lens 1 connected to the rotating body 2 to rotate synchronously, realize the adjustment of the lens angle, and realize the shooting after the lens and the image sensor in the camera body form a deflection angle, which provides an effective solution for the situation where objects exceeding the depth of field or clear images cannot be captured due to the limitation of the camera lens installation angle.

One end surface of the flexible tube 4 is in contact with and connected to the rotating body 2, and the other end surface of the flexible tube 4 is in contact with and connected to the base 3, and both ends of the flexible tube 4 are respectively connected to the first light-transmitting hole 21 and the second light-transmitting hole 31. The flexible tube 4 is used to connect the first light-transmitting hole 21 and the second light-transmitting hole 31, and seal the first light-transmitting hole 21 and the second light-transmitting hole 31. The flexible tube 4 is used to form a dust-proof sealing cavity between the rotating body 2 and the base 3, which can prevent dust, water vapor and other impurities from entering the Sham lens assembly through the first light-transmitting hole 21 and the second light-transmitting hole 31 during the rotation of the rotating body 2 relative to the base 3. The sealing of the Sham lens assembly is increased, and the probability of impurities entering the camera body through the Sham lens assembly and affecting electronic devices such as the image sensor is reduced, so that the camera's imaging is not affected by external dust and other impurities, thereby improving the camera's imaging effect and enhancing the camera's imaging quality.

Furthermore, as shown in FIG. 4 , FIG. 4 is a structural diagram of a Sham lens assembly when the rotating body 2 rotates relative to the base 3. The flexible pipe 4 can be deformed accordingly when the rotating body 2 rotates relative to the base 3. The flexible pipe 4 can achieve deformation and bending at a large angle, and will not limit the rotation angle of the rotating body 2 and the lens 1, so that the lens 1 in the Sham lens assembly can be adjusted in a large angle range, so that the lens 1 has a larger angle adjustment range, further improving the imaging effect of the camera. Moreover, the lens 1 has a larger angle adjustment range, which can make the application of the Sham lens assembly more extensive. Since the flexible pipe 4 is a retractable flexible material, the flexible pipe 4 will not be worn when the lens angle is frequently adjusted and used, so the long-term sealing effect is better. In addition, the Sham lens assembly provided in the embodiment of the present application has a simple structure, a small number of parts, simple installation and convenient maintenance.

Optionally, one end surface of the flexible tube 4 is bonded and sealed to the rotating body 2 , and the other end surface of the flexible tube 4 is bonded and sealed to the base 3 .

Optionally, the first light-transmitting hole 21 may be a circular hole, and the second light-transmitting hole 31 may be a circular hole or a square hole.

In some embodiments, the rotating body 2 includes a first main body portion 22, a first rotating shaft portion 23, and a second rotating shaft portion 24. The first rotating shaft portion 23 and the second rotating shaft portion 24 are respectively fixedly arranged on both sides of the first main body portion 22 along the extension direction of the first rotating shaft L, and the first light-transmitting hole 21 is arranged on the first main body portion 22. The base 3 includes a second main body portion 32, a first end cover 33 and a second end cover 34. The first end cover 33 and the second end cover 34 are located on both sides of the second main body portion 32 and connected to the second main body portion 32 along the extension direction of the first rotating shaft L. The second light-transmitting hole 31 is arranged on the second main body portion 32. The first end cover 33 is provided with a first mounting hole 331. The first rotating shaft portion 23 can be relatively rotatably placed in the first mounting hole 331. The second end cover 34 is provided with a second mounting hole 341. The second rotating shaft portion 24 can be relatively rotatably placed in the second mounting hole 341.

In the embodiment of the present application, the first rotation shaft portion 23 and the second rotation shaft portion 24 are arranged on opposite sides of the first main body portion 22. The first rotation shaft portion 23 and the second rotation shaft portion 24 can be two columnar rotation shafts fixedly arranged on the first main body portion 22, and the axes of the first rotation shaft portion 23 and the second rotation shaft portion 24 are parallel to the first rotation axis L.

As shown in FIG. 1 and FIG. 2 , the first end cover 33 and the second end cover 34 are located on opposite sides of the second main body 32 , and a first mounting hole 331 is formed on a surface of the first end cover 33 and the second end cover 34 on the side opposite to each other. The first mounting hole 331 penetrates the first end cover 33. A second mounting hole 341 is formed on a surface of the second end cover 34 opposite to the first end cover 33, and the second mounting hole 341 penetrates the second end cover 34. When the rotating body 2 is mounted on the base 3, a part of the structure of the first main body 22 of the rotating body 2 is placed in the second light-transmitting hole 31 of the base 3, the first rotating shaft 23 of the rotating body 2 is penetrated in the first mounting hole 331, the second rotating shaft 24 is penetrated in the second mounting hole 341, and the first rotating shaft 23 can rotate relative to the first mounting hole 331, and the second rotating shaft 24 can rotate relative to the second mounting hole 341.

In the embodiment of the present application, the first light-transmitting hole 21 is opened on the first main body 22 of the rotating body 2, the lens 1 is connected to the first main body 22, the first main body 22 is rotatably connected to the first end cover 33 through the first rotating shaft portion 23, and the first main body 22 is also rotatably connected to the second end cover 34 through the second rotating shaft portion 24. The rotating body 2 as a whole is rotatably connected to the base 3 through the first rotating shaft portion 23 and the second rotating shaft portion 24, so that the lens 1 is driven to rotate relative to the base 3 through the rotating body 2 to achieve adjustment of the lens angle.

Optionally, the first rotating shaft portion 23, the second rotating shaft portion 24 and the first main body portion 22 may be connected to form an integral structure, that is, the first rotating shaft portion 23, the second rotating shaft portion 24 and the first main body portion 22 may be integrally formed.

In some embodiments, the first end cover 33 is connected to the second main body 32 as an integral structure, and the second end cover 34 is detachably connected to the second main body 32; or the first end cover 33 is detachably connected to the second main body 32, and the second end cover 34 is connected to the second main body 32 as an integral structure.

In the embodiment of the present application, one of the first end cover 33 and the second end cover 34 is connected to the second main body 32 as an integral structure, which can reduce the structural complexity and assembly difficulty of the base 3. Since the first shaft portion 23 and the second shaft portion 24 of the rotating body 2 are rigid structures and are not easily deformed, in order to allow the first shaft portion 23 and the second shaft portion 24 to be placed in the first mounting hole 331 and the second mounting hole 341 respectively, the other of the first end cover 33 and the second end cover 34 is detachably connected to the second main body 32, thereby facilitating the connection between the rotating body 2 and the base 3.

Taking the example that the first end cover 33 and the second main body 32 are an integral structure, and the second end cover 34 and the second main body 32 are detachably connected, the connection process of the rotating body 2 and the base 3 is to first remove the second end cover 34 from the second main body 32 so that the first shaft portion 23 is inserted into the first mounting hole 331, and then align the second mounting hole 341 on the second end cover 34 with the second shaft portion 24 so that the second shaft portion 24 is inserted into the second mounting hole 341, and then fix the second end cover 34 and the second main body 32 to achieve axial compression. Optionally, as shown in FIG1 , the second end cover 34 can be locked and connected to the second main body 32 by a fastener 5, wherein the fastener 5 includes but is not limited to screws, bolts, etc.

In some embodiments, the Sham lens assembly further includes a first corrugated gasket 6, the first corrugated gasket 6 being provided with The first corrugated gasket 6 is disposed outside the first rotating shaft portion 23, and is located between the first main body portion 22 and the first end cover 33, and along the extension direction of the first rotating shaft L, two sides of the first corrugated gasket 6 are respectively in contact with the first main body portion 22 and the first end cover 33; and/or

The Sham lens assembly also includes a second corrugated gasket 7, which is sleeved outside the second rotating shaft portion 24. The second corrugated gasket 7 is located between the first main body portion 22 and the second end cover 34, and along the extension direction of the first rotating shaft L, the two sides of the second corrugated gasket 7 are respectively abutted against the first main body portion 22 and the second end cover 34.

In the embodiment of the present application, the first corrugated gasket 6 and the second corrugated gasket 7 are corrugated spring gaskets, and both of the first corrugated gasket 6 and the second corrugated gasket 7 are annular sheet structures. As shown in Figures 2 and 6, the first corrugated gasket 6 and the second corrugated gasket 7 have the same structure, and the first corrugated gasket 6 and the second corrugated gasket 7 form multiple elastic protrusions on both sides through their own corrugated structures. The first corrugated gasket 6 is sleeved outside the first rotating shaft portion 23, and part of the two side surfaces of the first corrugated gasket 6 are respectively abutted against the two side surfaces close to the first main body portion 22 and the first end cover 33, that is, the elastic protrusions of the first corrugated gasket 6 are abutted against the two side surfaces close to the first main body portion 22 and the first end cover 33. The first corrugated gasket 6 can undergo elastic deformation under the action of external force. Specifically, when the first main body 22 of the rotating body 2 rotates relative to the first end cover 33, the first corrugated gasket 6 is squeezed and deformed. After the first main body 22 rotates to a specific angle, the first corrugated gasket 6 is in close contact with the two side surfaces of the first main body 22 and the first end cover 33 under the action of the rebound force and generates friction. The friction fixes the first main body 22 and the lens 1 connected to the first main body 22 to the adjusted angle.

The second corrugated gasket 7 is sleeved outside the second rotating shaft portion 24, and partial areas of the two side surfaces of the second corrugated gasket 7 are respectively in contact with the two side surfaces close to the first main body portion 22 and the second end cover 34, that is, the elastic protrusion of the second corrugated gasket 7 is in contact with the two side surfaces close to the first main body portion 22 and the second end cover 34. The second corrugated gasket 7 can be elastically deformed under the action of external force. Specifically, when the first main body portion 22 of the rotating body 2 rotates relative to the second end cover 34, the second corrugated gasket 7 is squeezed and deformed. After the first main body portion 22 rotates to a specific angle, the second corrugated gasket 7 is tightly in contact with the two side surfaces close to the first main body portion 22 and the second end cover 34 under the action of the rebound force and generates friction. The friction fixes the first main body portion 22 and the lens 1 connected to the first main body portion 22 to the adjusted angle.

In the embodiment of the present application, the first corrugated gasket 6 and the second corrugated gasket 7 provide damping when the lens 1 is adjusted in angle, so that the lens 1 will not move after being adjusted to a specified position, which is convenient for users to In addition, when the first rotating shaft portion 23 and the second rotating shaft portion 24 rotate relative to the base 3, the damping of the first corrugated gasket 6 and the second corrugated gasket 7 exists within a rotation range of 360°, and the flexible tube 4 can achieve deformation and bending at a large angle, so that the lens 1 can achieve adjustment within a large angle range and has a wider application.

In some embodiments, along the extension direction perpendicular to the first rotation axis L, at least one third mounting hole 332 is provided on the first end cover 33, and the third mounting hole 332 is connected to the first mounting hole 331; at least one fourth mounting hole 342 is provided on the second end cover 34, and the fourth mounting hole 342 is connected to the second mounting hole 341; the Sham lens assembly also includes at least one first fastening screw 333 and at least one second fastening screw 343, the first fastening screw 333 is passed through the third mounting hole 332 and abuts against the first rotation shaft portion 23, and the second fastening screw 343 is passed through the fourth mounting hole 342 and abuts against the second rotation shaft portion 24.

In the embodiment of the present application, after the lens 1 is adjusted to the target angle, the screw of the first set screw 333 can pass through the third mounting hole 332 and abut against the side wall of the first rotating shaft portion 23 in the first mounting hole 331, and the end face of the screw of the first set screw 333 can generate friction with the side wall of the first rotating shaft portion 23 to prevent the first rotating shaft portion 23 from continuing to rotate around the first axis L, thereby locking the first rotating shaft portion 23. Similarly, after the lens 1 is adjusted to the target angle, the screw of the second set screw 343 can pass through the fourth mounting hole 342 and abut against the side wall of the second rotating shaft portion 24 in the second mounting hole 341, and the end face of the screw of the second set screw 343 can generate friction with the side wall of the second rotating shaft portion 24 to prevent the second rotating shaft portion 24 from continuing to rotate around the first axis L, thereby locking the second rotating shaft portion 24, thereby fixing the lens 1 to the target angle.

In the embodiment of the present application, on the basis of providing the first corrugated gasket 6 and the second corrugated gasket 7, the first set screw 333 and the second set screw 343 can be provided on the Sham lens assembly, damping is provided by the first corrugated gasket 6 and the second corrugated gasket 7, and the rotating body 2 is locked by the first set screw 333 and the second set screw 343, so as to realize double fixation of the lens 1 and increase the stability of the lens 1. The Sham lens assembly can also be provided with only the first corrugated gasket 6 and the second corrugated gasket 7, and damping is provided by the first corrugated gasket 6 and the second corrugated gasket 7, so that the position of the lens 1 will not change easily, and the present application does not limit this.

In some embodiments, as shown in FIG. 5 , an angle scale mark 334 is provided on a surface of the first end cover 33 away from the second main body 32 , and a positioning mark 231 for indicating the angle scale mark 334 is provided on a surface of the first rotating shaft portion 23 away from the first main body 22 .

In the embodiment of the present application, the angle scale mark 334 includes multiple angle values. The positioning mark 231 is used to indicate the angle value on the angle scale mark 334. The angle value pointed by the positioning mark 231 is the rotation angle of the rotating body 2, thereby realizing accurate positioning and reading of the rotating body 2.

In some embodiments, the flexible tube 4 is a bellows. The bellows has a plurality of foldable lines along its extension direction, and the plurality of foldable lines allow the bellows to be stretched and folded. The flexible tube 4 is a bellows, and during the rotation of the lens 1, one side of the flexible tube 4 is stretched and the other side of the flexible tube 4 is folded, so that the deformation state of the flexible tube 4 can be adjusted according to the rotation of the lens 1.

In some embodiments, the flexible tube 4 includes a plurality of flexible tubes, which are sleeved in sequence along the direction close to the rotating body 2, and one of two adjacent flexible tubes can slide relative to the other. The flexible tube 4 can be a retractable flexible sleeve, and the multiple flexible tubes included in the flexible tube 4 are sleeved and connected in sequence. During the rotation of the lens 1, the flexible tube slides downward or upward relative to the adjacent flexible tubes to achieve the stretching and folding of the flexible tube 4, so that the flexible tube 4 can adjust the deformation state of the flexible tube 4 according to the rotation of the lens 1.

In the embodiment of the present application, the flexible pipe 4 may also be of other structures, which is not limited in the present application.

In some embodiments, the Sham lens assembly further includes a sealing sheet 8, which is disposed on a side of the base 3 away from the lens 1, and covers the second light-transmitting hole 31. The sealing sheet 8 is made of a light-transmitting material. The sealing sheet 8 is used to seal the second light-transmitting hole 31, and to dust-proof the internal cavity of the Sham camera assembly, so as to prevent impurities such as dust and water vapor from entering the camera body through the second light-transmitting hole 31.

Optionally, the material of the sealing sheet 8 includes but is not limited to transparent glass, resin, etc. Optionally, the sealing sheet 8 is connected to the base 3 by dispensing glue, back glue, etc.

Optionally, as shown in FIG2 , a side surface of the base 3 away from the lens 1 may be provided with a recessed groove 35 for accommodating the sealing sheet 8. The second light-transmitting hole 31 is provided at the bottom of the recessed groove 35, and the sealing sheet 8 is fixedly disposed in the recessed groove 35 and covers the second light-transmitting hole 31.

Optionally, as shown in FIG. 5 , a fifth mounting hole 36 is provided on the base 3 , and the base 3 is conveniently connected to the camera body through the fifth mounting hole 36 .

An embodiment of the second aspect of the present application provides a camera, which includes a camera body and the Sham lens assembly in the above embodiment, and the Sham lens assembly is connected to the camera body.

In the embodiment of the present application, the camera includes but is not limited to an industrial camera, a civilian camera, etc. Since the camera includes the Sham lens assembly in the above embodiment, the camera provided in the embodiment of the present application has the above Describe all the advantages of the Sham lens assembly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

A Sham lens assembly, characterized by comprising:

Lens (1);

A rotating body (2), one side of the rotating body (2) is connected to the lens (1), and the rotating body (2) is provided with a first light-transmitting hole (21) corresponding to the lens (1);

A base (3), the rotating body (2) being connected to the base (3), and the rotating body (2) being rotatable relative to the base (3) around a first rotation axis, the extension direction of the first rotation axis being perpendicular to the optical axis direction of the lens (1), the base (3) being provided with a second light transmission hole (31) corresponding to the first light transmission hole (21), and the side of the base (3) away from the rotating body (2) being used for connecting with a camera body;

A flexible tube (4), one end surface of the flexible tube (4) is in contact with and connected to the rotating body (2) and is communicated with the first light-transmitting hole (21), and the other end surface of the flexible tube (4) is in contact with and connected to the base (3) and is communicated with the second light-transmitting hole (31).
The Sham lens assembly according to claim 1, characterized in that the rotating body (2) comprises a first main body portion (22), a first rotating shaft portion (23) and a second rotating shaft portion (24), and along the extension direction of the first rotating shaft, the first rotating shaft portion (23) and the second rotating shaft portion (24) are respectively fixedly arranged on both sides of the first main body portion (22), and the first light transmission hole (21) is arranged on the first main body portion (22);

The base (3) comprises a second main body (32), a first end cover (33) and a second end cover (34); along the extension direction of the first rotating shaft, the first end cover (33) and the second end cover (34) are located on both sides of the second main body (32) and are connected to the second main body (32); the second light-transmitting hole (31) is arranged on the second main body (32); the first end cover (33) is provided with a first mounting hole (331); the first rotating shaft (23) can be relatively rotatably placed in the first mounting hole (331); the second end cover (34) is provided with a second mounting hole (341); the second rotating shaft (24) can be relatively rotatably placed in the second mounting hole (341).
The Sham lens assembly according to claim 2, characterized in that the Sham lens assembly further comprises:

A first corrugated gasket (6), the first corrugated gasket (6) is sleeved outside the first rotating shaft portion (23), the first corrugated gasket (6) is located between the first main body portion (22) and the first end cover (33), and along the extension direction of the first rotating shaft, the two sides of the first corrugated gasket (6) are respectively Abutting against the first main body (22) and the first end cover (33); and/or

A second corrugated gasket (7), the second corrugated gasket (7) is sleeved outside the second rotating shaft portion (24), the second corrugated gasket (7) is located between the first main body portion (22) and the second end cover (34), and along the extension direction of the first rotating shaft, two sides of the second corrugated gasket (7) are respectively in contact with the first main body portion (22) and the second end cover (34).
The Sham lens assembly according to claim 2 or 3, characterized in that, along the extension direction perpendicular to the first rotating shaft, at least one third mounting hole (332) is provided on the first end cover (33), and the third mounting hole (332) is communicated with the first mounting hole (331); and at least one fourth mounting hole (342) is provided on the second end cover (34), and the fourth mounting hole (342) is communicated with the second mounting hole (341);

The Sham lens assembly further includes at least one first fixing screw (333) and at least one second fixing screw (343), wherein the first fixing screw (333) is passed through the third mounting hole (332) and abuts against the first rotating shaft portion (23), and the second fixing screw (343) is passed through the fourth mounting hole (342) and abuts against the second rotating shaft portion (24).
The Sham lens assembly according to claim 2 is characterized in that an angle scale mark (334) is provided on a side surface of the first end cap (33) away from the second main body (32), and a positioning mark (231) for indicating the angle scale mark (334) is provided on a side surface of the first rotating shaft portion (23) away from the first main body (22).
The Sham lens assembly according to claim 2, characterized in that the first end cap (33) and the second main body (32) are connected as an integral structure, and the second end cap (34) and the second main body (32) are detachably connected; or

The first end cover (33) is detachably connected to the second main body (32), and the second end cover (34) is connected to the second main body (32) to form an integral structure.
The Sham lens assembly according to claim 1 is characterized in that the flexible tube (4) is a bellows.
The Sham lens assembly according to claim 1 is characterized in that the flexible tube (4) comprises a plurality of flexible tubes, and the plurality of flexible tubes are sequentially sleeved in a direction approaching the rotating body (2), and one of two adjacent flexible tubes can slide relative to the other.
The Sham lens assembly according to claim 1, characterized in that the Sham lens assembly further comprises a sealing sheet (8), wherein the sealing sheet (8) is arranged on the base (3) away from the lens (1), and the sealing sheet (8) covers the second light-transmitting hole (31), and the sealing sheet (8) is made of a light-transmitting material.
A camera, characterized in that the camera comprises a camera body and the Sham lens assembly according to any one of claims 1 to 9, wherein the Sham lens assembly is connected to the camera body.