Camera assembly and inspection device

Abstract

The present application provides a camera assembly and an inspection device, which relate to the field of medical device technology. The inspection device includes a camera assembly, and the camera assembly includes: a beam splitter, which is provided with a first light-emitting surface, and the beam splitter is used to split the light directed to the beam splitter into multiple light beams with different directions, so that one of the multiple light beams is directed to the first light-emitting surface; a light guide, which has a light-incoming surface, the light-incoming surface faces the first light-emitting surface, and the light directed to the first light-emitting surface is configured to pass through the first light-emitting surface and the light-incoming surface in sequence; a first camera, which faces the light guide and is used to receive the light guided by the light guide; there is an anti-light reflection structure between the beam splitter and the light guide, and the light directed to the first light-emitting surface passes through the anti-light reflection structure. The camera assembly and inspection device provided by the present application can reduce the influence of reflected light and ensure the imaging quality of the image.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a camera assembly and an inspection device. Background Art

[0002] In the field of medical technology, an inspection device is commonly used to inspect the human body, and a camera component for receiving light to form an image is usually provided inside the inspection device.

[0003] Existing camera modules often have cameras and various optical components inside. These optical components can be used to transmit light, and the light can form an image after being received by the camera.

[0004] However, when light is transmitted between various optical components, it is easily affected by reflected light, thus affecting the imaging quality. Utility Model Content

[0005] In view of the above problems, the present application provides a camera assembly and an inspection device, which can reduce the influence of reflected light and ensure the imaging quality of the image.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] The first aspect of the present application provides a camera assembly, comprising:

[0008] A light splitter is provided with a first light emitting surface, and is used to split the light incident on the light splitter into multiple light beams with different directions, so that one of the multiple light beams is incident on the first light emitting surface;

[0009] The light guide has a light-incoming surface, the light-incoming surface faces the first light-emitting surface, and the light emitted to the first light-emitting surface is configured to pass through the first light-emitting surface and the light-incoming surface in sequence;

[0010] A first camera element, the first camera element faces the light guide element and is used to receive the light guided by the light guide element;

[0011] An anti-light reflection structure is provided between the light splitter and the light guide, and the light emitted to the first light emitting surface passes through the anti-light reflection structure.

[0012] The beneficial effect of the present application is that when light is emitted from the beam splitter to the light guide, due to the existence of the anti-light reflection structure, the reflected light between the beam splitter and the light guide can be reduced or even avoided, thereby reducing or even avoiding the influence of the reflected light and ensuring the imaging quality of the image in the camera assembly.

[0013] In a possible implementation, the light incident surface is in contact with at least a portion of the first light emitting surface to form a light reflection prevention structure.

[0014] In one possible implementation, the camera assembly also includes a light-transmitting member, which is located between the light-incoming surface and the first light-emitting surface; along the relative directions of the light-incoming surface and the first light-emitting surface, two sides of the light-transmitting member are respectively in contact with the light-incoming surface and the first light-emitting surface to form an anti-light reflection structure.

[0015] In a possible implementation manner, the difference between the refractive indices of the light splitter and the light guide is smaller than a set value.

[0016] In a possible implementation, when the light-transmitting element is filled between the light-incoming surface and the first light-emitting surface, the maximum difference in refractive index among the light-splitting element, the light-guiding element and the light-transmitting element is less than a set value.

[0017] In a possible implementation, the light splitting element and the light guiding element are prism elements;

[0018] And / or, the beam splitter comprises two mutually attached right-angle prisms, the attached surface between the two right-angle prisms forms a beam splitter surface, and the beam splitter surface is used to split the light incident on the beam splitter into two beams of light in different directions;

[0019] And / or, a reflecting surface and an output surface are also provided on the light guide, the reflecting surface is located between the output surface and the light incident surface, and the first camera element faces the output surface; the light emitted to the first light output surface is configured to pass through the first light output surface, the light incident surface, the reflecting surface, the output surface and the first camera element in sequence.

[0020] In a possible implementation, the position of the first camera element relative to the light guide element is adjustable;

[0021] The camera assembly also includes a voice coil motor, the first camera element is connected to the voice coil motor, and the voice coil motor is used to drive the first camera element to move relative to the light guide element; or, the camera assembly also includes a screw assembly, the first camera element is connected to a slider of the screw assembly, and the screw assembly is used to drive the first camera element to move relative to the light guide element.

[0022] In a possible implementation, the camera assembly also includes a second camera element; a second light emitting surface is also provided on the beam splitter, the first light emitting surface and the second light emitting surface have different orientations, and one of the multiple beams of light is configured to be emitted toward the second light emitting surface; the second camera element faces the second light emitting surface.

[0023] In a possible implementation, the first camera element and the second camera element have different focal lengths;

[0024] And / or, the first camera and the second camera have different fields of view;

[0025] And / or, the position of the first camera element relative to the light guide element is adjustable.

[0026] In a possible implementation, a line connecting the center of the first camera element and the center of the beam splitter is a first line, a line connecting the center of the second camera element and the center of the beam splitter is a second line, and an angle between the first line and the second line is an acute angle.

[0027] A second aspect of the present application provides an inspection device, comprising a shell and a camera assembly in any of the above-mentioned implementation methods, the shell having an interior having a receiving cavity, and the camera assembly is arranged in the receiving cavity; a light-transmitting window connected to the receiving cavity is opened on the shell, and the light-incoming side of the beam splitter of the camera assembly faces the light-transmitting window.

[0028] In a possible implementation, the inspection device further includes a light emitting member and a mounting frame, wherein the light emitting member and the mounting frame are located in the accommodating cavity and connected to the housing;

[0029] The light emitting element and the camera assembly are mounted on a mounting frame. The light emitting element is arranged around the light splitting element, and the light emitting side of the light emitting element faces the light transmission window.

[0030] When the camera assembly provided by the present application is in use, when light is directed from the beam splitter to the light guide, the presence of the anti-light reflection structure can reduce or even avoid the occurrence of reflected light between the beam splitter and the light guide, thereby reducing or even avoiding the influence of reflected light on the imaging light, and ensuring the imaging quality of the image in the camera assembly. In the inspection device provided by the present application, the shell can protect the camera assembly, and light can pass through the light-transmitting window on the shell to the camera assembly; because the camera assembly of the present application can ensure the imaging quality of the image, it can also improve the accuracy and reliability of the inspection results of the inspection device.

[0031] The structure of the present application and its other inventive objectives and beneficial effects will be more clearly understood through the description of the specific implementation methods in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 It is a structural diagram of a camera assembly in the prior art;

[0034] Figure 2 A three-dimensional diagram of the inspection device provided in an embodiment of the present application at a first angle;

[0035] Figure 3 A three-dimensional diagram of the inspection device provided in an embodiment of the present application at a second angle;

[0036] Figure 4 for Figure 2 Structural view after removing the shell;

[0037] Figure 5 For Figure 4 The corresponding left view;

[0038] Figure 6 for Figure 5 View after removing the mounting bracket and key assembly;

[0039] Figure 7 A first view of the camera assembly provided in an embodiment of the present application;

[0040] Figure 8 A second view of the camera assembly provided in an embodiment of the present application;

[0041] Fig. 9 A third view of the camera assembly provided in the embodiment of the present application;

[0042] Fig.10 A fourth view of the camera assembly provided in an embodiment of the present application;

[0043] Fig.11 This is a view of the installation of the inspection device and the endoscope provided in the embodiment of the present application;

[0044] Fig.12 This is an installation view of the inspection device and expander provided in an embodiment of the present application.

[0045] Description of reference numerals:

[0046] 10-Inspection device;

[0047] 100- camera assembly; 110- light splitter;

[0048] 110A-first right angle prism; 110B-second right angle prism;

[0049] 111-first light emitting surface; 112-second light emitting surface;

[0050] 113-beam splitting surface; 114-light-incoming side;

[0051] 120-light guide; 121-light intake surface;

[0052] 122-reflective surface; 122A-first reflective surface;

[0053] 122B-second reflecting surface; 123-exiting surface;

[0054] 130-a first camera element; 140-a second camera element;

[0055] 150-light-transmitting member; 160-light;

[0056] 161-first light; 162-second light;

[0057] 163-reflected light; 170-voice coil motor;

[0058] 180-screw assembly; 181-slider;

[0059] 182-screw; 183-screw motor;

[0060] 184-guide rod; 185-support member;

[0061] 191- a first optical element; 192- a second optical element;

[0062] 193-optical camera; 194-gap;

[0063] 200-housing; 200A-first housing;

[0064] 200B-second housing; 210-line inlet;

[0065] 220-light-transmitting window; 230-key-operating window;

[0066] 240- gripping part; 300- luminous element;

[0067] 400-mounting frame; 500-button assembly;

[0068] 600-circuit board assembly; 610-main control board;

[0069] 620-image processing board; 700-first connection line;

[0070] 800-second connection;

[0071] 20-endoscope;

[0072] 910-first operating handle; 920-mirror tube;

[0073] 30-dilator;

[0074] 930-second operating handle; 940-upper leaf;

[0075] 950-lower leaves. DETAILED DESCRIPTION

[0076] Existing camera modules often have cameras and various optical components inside. These optical components can be used to transmit light, and the light can be formed after being received by the camera. Figure 1As shown in the figure, the structure of the camera assembly 100 in the prior art is shown, and the light can pass through the first optical element 191 and the second optical element 192 in sequence, and be received by the optical camera 193 to form an image. In the existing camera assembly 100, there is a gap 194 between the first optical element 191 and the second optical element 192, and the gap 194 is filled with air; there is a contact surface between the air in the gap 194 and the first optical element 191 and the second optical element 192. Since the refractive index of light in the air and the optical element is different, when the angle between the light irradiated to the contact surface and the contact surface is less than a certain value, the contact surface will act as a reflection surface, thereby forming reflected light 163 in the gap 194, and these reflected lights 163 in the gap 194 will interfere with the light used for imaging, thereby affecting the imaging quality of the camera assembly 100.

[0077] Based on the above problems, an embodiment of the present application provides a camera assembly, which includes a beam splitter, a light guide and a first camera; wherein the beam splitter is provided with a first light emitting surface, the light guide has a light input surface, the light input surface faces the first light emitting surface, and the first camera faces the light guide; the light emitted to the first light emitting surface can pass through the first light emitting surface, the light input surface and the first camera in sequence. In addition, there is an anti-light reflection structure between the beam splitter and the light guide, and the light emitted to the first light emitting surface passes through the anti-light reflection structure. Therefore, when light is emitted from the beam splitter to the light guide, due to the existence of the anti-light reflection structure, the reflected light between the beam splitter and the light guide can be reduced or even avoided, thereby reducing or even avoiding the influence of the reflected light, and ensuring the imaging quality of the image in the camera assembly.

[0078] In addition, the present application also provides an inspection device, which includes a shell and the above-mentioned camera assembly, wherein the camera assembly is arranged in a accommodating cavity inside the shell; a light-transmitting window connected to the accommodating cavity is opened on the shell, and the light-incoming side of the beam splitter of the camera assembly faces the light-transmitting window; thus, the shell can protect the camera assembly, and light can pass through the light-transmitting window on the shell to the camera assembly; since the camera assembly of the present application can ensure the imaging quality of the image, the accuracy and reliability of the inspection results of the inspection device can be improved.

[0079] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0080] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0081] The following combination Figures 2 to 12 , the structure of the camera assembly and inspection device provided in the embodiments of the present application is described in detail.

[0082] like Figure 7 and Figure 8 As shown, the camera assembly 100 provided in the present application includes:

[0083] The light splitter 110 is provided with a first light emitting surface 111. The light splitter 110 is used to split the light incident on the light splitter 110 into multiple light beams with different directions, so that one of the multiple light beams is incident on the first light emitting surface 111; Figure 7 As shown, the beam splitter 110 has a light inlet side 114, and the light 160 is emitted to the inside of the beam splitter 110 through the light inlet side 114. The beam splitter 110 can split the light 160 emitted to the beam splitter 110 into two beams with different directions, one of which can be emitted to the first light exit surface 111, and the other can be emitted to the other light exit surface. Specifically, the beam splitter 110 can be a beam splitter prism.

[0084] The light guide 120 has a light inlet surface 121, the light inlet surface 121 faces the first light outlet surface 111, and the light emitted to the first light outlet surface 111 is configured to pass through the first light outlet surface 111 and the light inlet surface 121 in sequence; thus, the light can enter the interior of the light guide 120 after passing through the first light outlet surface 111 and the light inlet surface 121 in sequence, and be emitted from the interior of the light guide 120; the light guide 120 can guide the propagation of the light and change the propagation direction of the light. Specifically, the light guide 120 can be a light guide prism.

[0085] The first camera 130 faces the light guide 120 and is used to receive the light guided by the light guide 120. When the light is emitted from the inside of the light guide 120, the first camera 130 can receive the light, thereby forming an image. Specifically, the first camera 130 can be an optical camera.

[0086] Among them, there is an anti-light reflection structure between the beam splitter 110 and the light guide 120, and the light emitted to the first light exiting surface 111 passes through the anti-light reflection structure. The beam splitter 110 and the light guide 120 are optical components. When the light is emitted from the beam splitter 110 to the light guide 120, due to the existence of the anti-light reflection structure, the reflected light 163 between the beam splitter 110 and the light guide 120 can be reduced or even avoided, thereby reducing or even avoiding the influence of the reflected light 163 on the imaging light used for imaging, thereby ensuring the imaging quality of the image in the camera assembly 100.

[0087] Next, combine Figure 7 and Figure 8 , the anti-light reflection structure is described in detail:

[0088] In a specific embodiment, Figure 7 As shown, the light-inlet surface 121 is fitted with at least a portion of the first light-emitting surface 111 to form an anti-light reflection structure. When the light-inlet surface 121 is fitted with the first light-emitting surface 111, there is no gap between the light-inlet surface 121 and the first light-emitting surface 111, and the light emitted to the first light-emitting surface 111 directly passes through the fitting surface; thus, there will be no reflected light 163 between the light-splitting element 110 and the light-guiding element 120, and there will be no situation where the reflected light 163 affects the imaging light, thereby ensuring the imaging quality. In this way, by fitting the light-inlet surface 121 with the first light-emitting surface 111, the formation of the anti-light reflection structure is facilitated, and it is ensured that the reflected light 163 is not formed between the light-splitting element 110 and the light-guiding element 120. Exemplarily, the light-inlet surface 121 is fitted with the entire first light-emitting surface 111, ensuring that the light emitted to the first light-emitting surface 111 can all enter the light-guiding element 120.

[0089] In addition, based on the direct bonding of the light incident surface 121 and the first light emitting surface 111 to form the anti-light reflection structure, the beam splitter 110 and the light guide 120 may also be integrated at the first light emitting surface 111 to form the anti-light reflection structure.

[0090] In another specific embodiment, Figure 8As shown, the camera assembly 100 further includes a light-transmitting member 150, which is located between the light-incoming surface 121 and the first light-emitting surface 111; along the relative direction of the light-incoming surface 121 and the first light-emitting surface 111, the two sides of the light-transmitting member 150 are respectively attached to the light-incoming surface 121 and the first light-emitting surface 111 to form a light-proof reflection-proof structure. Thus, the light-transmitting member 150 can be filled in the gap between the light-incoming surface 121 and the first light-emitting surface 111, and the light emitted to the first light-emitting surface 111 can enter the light-guiding member 120 through the light-transmitting member 150; compared with the gap between the light-incoming surface 121 and the first light-emitting surface 111 being filled with air, after the gap is filled with the light-transmitting member 150, the refractive index of the light-transmitting member 150 is closer to the light-splitting member 110 and the light-guiding member 120, and the attachment of the light-transmitting member 150 to the light-incoming surface 121 and the first light-emitting surface 111 is not easy to reflect light. With such a configuration, the presence of the light-transmitting member 150 can reduce the reflection of light at the light-incoming surface 121 and the first light-emitting surface 111, thereby reducing the influence of the reflected light 163 on the imaging light, thereby ensuring the imaging quality. Compared with directly bonding the light-incoming surface 121 and the first light-emitting surface 111 to form an anti-light reflection structure, the light-transmitting member 150 is filled in the gap to form an anti-light reflection structure, which can be applied to the situation where it is not convenient to directly bond the light-incoming surface 121 and the first light-emitting surface 111 during installation. Specifically, the light-transmitting member 150 can be a transparent glass.

[0091] In the embodiment of the present application, the difference in refractive index between the beam splitter 110 and the light guide 120 is less than a set value. It should be noted that when light is directed from the beam splitter 110 to the light guide 120, if the difference in refractive index between the beam splitter 110 and the light guide 120 is large, the direction of the light will be deflected at a large angle, resulting in part of the light not being received by the first camera 130, thereby affecting the imaging quality. Specifically, the difference in refractive index between the beam splitter 110 and the light guide 120 does not exceed one tenth of the minimum value of the two, thereby ensuring the imaging quality.

[0092] In the embodiment of the present application, when the light-transmitting element 150 is filled between the light-incoming surface 121 and the first light-emitting surface 111, the maximum difference in the refractive index of the light-splitting element 110, the light-guiding element 120 and the light-transmitting element 150 is less than the set value. With such a configuration, when the light passes through the light-splitting element 110, the light-guiding element 120 and the light-transmitting element 150 in sequence, the direction of the light will not be deflected at a large angle, and the light can all be received by the first camera 130, thereby ensuring the imaging quality. Specifically, the maximum difference in the refractive index of the three does not exceed one tenth of the minimum value of the three.

[0093] In addition, the refractive index of the light-transmitting member 150 may be between the refractive indexes of the light-splitting member 110 and the light-guiding member 120; for example, when the refractive index of the light-splitting member 110 is greater than the refractive index of the light-guiding member 120, the refractive index of the light-transmitting member 150 is greater than the refractive index of the light-guiding member 120 and less than the refractive index of the light-splitting member 110, thereby gradually decreasing the refractive indices of the light-splitting member 110, the light-transmitting member 150 and the light-guiding member 120, and light is less likely to be reflected when passing through the light-splitting member 110, the light-transmitting member 150 and the light-guiding member 120.

[0094] In the embodiments of the present application, Figure 7 and Figure 8 As shown, the beam splitter 110 and the light guide 120 are prism elements; in addition, the light transparent element 150 can also be a prism element, and the refractive indexes of the beam splitter 110, the light guide 120 and the light transparent element 150 can be kept consistent, thereby ensuring that the light will not be deflected when passing through the beam splitter 110, the light guide 120 and the light transparent element 150.

[0095] For example, Figure 7 and Figure 8 The beam splitter 110 includes two mutually attached right angle prisms - a first right angle prism 110A and a second right angle prism 110B. The attached surface between the first right angle prism 110A and the second right angle prism 110B forms a beam splitter surface 113. The beam splitter surface 113 is used to split the light directed to the beam splitter 110 into two beams of light in different directions. The directions of the two beams of light are set perpendicular to each other. One of the two beams of light can be directed to the first light emitting surface 111, and the other beam of light can be directed to the other light emitting surface. The first light emitting surface 111 is located on the first right angle prism 110A, and the other light emitting surface is located on the second right angle prism 110B.

[0096] Exemplarily, the light guide 120 is further provided with a reflective surface 122 and an exit surface 123, the reflective surface 122 is located between the exit surface 123 and the light incident surface 121, and the first camera 130 faces the exit surface 123; the light emitted to the first light exit surface 111 is configured to pass through the first light exit surface 111, the light incident surface 121, the reflective surface 122, the exit surface 123 and the first camera 130 in sequence. The existence of the reflective surface 122 can change the direction of the light, and make the light emitted to the exit surface 123 and then received by the first camera 130, so as to form an image; in addition, the reflective surface 122 can also fold the light path, which is conducive to the miniaturization of the camera assembly 100.

[0097] Specifically, the reflecting surface 122 includes a first reflecting surface 122A and a second reflecting surface 122B that are relatively arranged, the first reflecting surface 122A is opposite to the light incident surface 121, and the second reflecting surface 122B is opposite to the exit surface 123; thus, the light directed to the light guide 120 can pass through the light incident surface 121, the first reflecting surface 122A, the second reflecting surface 122B and the exit surface 123 in sequence, and finally be received by the first camera element 130.

[0098] In the embodiments of the present application, Figure 7 and Fig. 9 As shown, the position of the first camera 130 relative to the light guide 120 is adjustable; by adjusting the position of the first camera 130 relative to the light guide 120, the first camera 130 can be focused, thereby improving the quality of the image formed by the first camera 130.

[0099] Next, combine Figure 7 and Fig. 9 , the position adjustment method of the first camera element 130 is described:

[0100] like Figure 7 As shown, the camera assembly 100 also includes a voice coil motor 170. The first camera element 130 is connected to the voice coil motor 170. The voice coil motor 170 is used to drive the first camera element 130 to move relative to the light guide 120. The voice coil motor 170 has the advantages of simple structure, easy control, and high movement accuracy, which is convenient for adjusting the position of the first camera element 130 relative to the light guide 120 to obtain higher quality images.

[0101] like Fig. 9 As shown, the camera assembly 100 further includes a screw assembly 180, and the first camera element 130 is connected to a slider 181 of the screw assembly 180. The screw assembly 180 is used to drive the first camera element 130 to move relative to the light guide 120. The screw assembly 180 has a stable transmission, and the first camera element 130 can be easily driven to move by sliding the slider 181. Specifically, as Fig. 9 As shown, the screw assembly 180 also includes a screw motor 183, a screw 182, a guide rod 184 and a support member 185. The screw motor 183, the screw 182 and the guide rod 184 are all installed on the support member 185. The extension directions of the screw 182 and the guide rod 184 are consistent. The slider 181 is threadedly connected to the screw 182 and slidably connected to the guide rod 184; the screw motor 183 is connected to the screw 182 and can drive the screw 182 to rotate. When the screw 182 rotates, the screw 182 can drive the slider 181 to slide relative to the guide rod 184, and then drive the first camera 130 to move.

[0102] In the embodiments of the present application, Figure 7 and Fig. 9As shown, the camera assembly 100 further includes a second camera 140, which can be an optical camera; the light splitter 110 is further provided with a second light emitting surface 112, the first light emitting surface 111 and the second light emitting surface 112 are oriented in different directions, and one of the multiple light beams is configured to be emitted toward the second light emitting surface 112; the second camera 140 is oriented toward the second light emitting surface 112. Thus, the light emitting toward the second light emitting surface 112 can be received by the second camera 140 and form an image. With such an arrangement, the first camera 130 and the second camera 140 can be used to obtain images with different magnifications, thereby facilitating inspection by operators.

[0103] Specifically, Figure 7 and Fig. 9 As shown, the first light emitting surface 111 and the second light emitting surface 112 are perpendicular to each other, and the light splitter 110 can split the light 160 into the first light 161 and the second light 162 which are perpendicular to each other, and the ratio of the luminous flux of the first light 161 and the second light 162 can be 1:1, 1:2, etc. The first camera 130 is used to form an image with a first magnification, and the second camera 140 is used to form an image with a second magnification, and the second magnification can be greater than the first magnification. After acquiring images with different magnifications, it is convenient for operators to conduct inspections.

[0104] Exemplarily, the focal lengths of the first camera 130 and the second camera 140 are different. The focal length of the second camera 140 may be greater than the focal length of the first camera 130, so that the second magnification of the second camera 140 can be greater than the first magnification of the first camera 130. For example, the focal length of the second camera 140 may be 12-16 mm, and the focal length of the first camera 130 may be 3.6-4.7 mm. Alternatively, the focal length of the first camera 130 may also be greater than the focal length of the second camera 140.

[0105] Exemplarily, the first camera 130 and the second camera 140 have different fields of view. The field of view of the second camera 140 may be smaller than that of the first camera 130. For example, the field of view of the second camera 140 may be 40×30 mm, and the field of view of the first camera 130 may be 80×60 mm, so that the camera assembly 100 can acquire images of different fields of view, thereby facilitating the inspection of the operator. Alternatively, the field of view of the first camera 130 may be smaller than that of the second camera 140. In addition, the number of pixels of the first camera 130 and the second camera 140 may also be different.

[0106] Exemplarily, the position of the first camera 130 relative to the light guide 120 is adjustable. By adjusting the position of the second camera 140 relative to the light guide 120, the second camera 140 can be focused, thereby improving the quality of the image formed by the second camera 140. In addition, the position of the first camera 130 can be adjusted by the voice coil motor 170 or the lead screw assembly 180 in the above embodiment.

[0107] In the embodiments of the present application, Fig.10 As shown, the line connecting the center of the first camera 130 and the center of the beam splitter 110 is the first line 700, the line connecting the center of the second camera 140 and the center of the beam splitter 110 is the second line 800, and the angle θ between the first line 700 and the second line 800 is an acute angle. In this way, when the first line 700 and the second line 800 form an acute angle, the first camera 130 and the second camera 140 can be closer to each other, so that the structure of the camera assembly 100 is more streamlined. It should be noted that the center of an object refers to the center of the geometric shape of the object.

[0108] Based on the above embodiments, the present application also provides an inspection device 10, such as Figures 2 to 6 As shown, the inspection device 10 includes a housing 200 and a camera assembly 100 in any of the above embodiments; specifically, the housing 200 has a receiving cavity inside, and the camera assembly 100 is arranged in the receiving cavity; a light-transmitting window 220 communicating with the receiving cavity is provided on the housing 200, and the light-incoming side 114 of the light-splitting element 110 of the camera assembly 100 faces the light-transmitting window 220. When the inspection device 10 provided by the present application is in use, the housing 200 can protect the camera assembly 100, and light can pass through the light-transmitting window 220 on the housing 200 to the camera assembly 100; because the camera assembly 100 of the present application can ensure the imaging quality of the image, the accuracy and reliability of the inspection result of the inspection device 10 can also be improved.

[0109] Specifically, the shell 200 includes a first shell 200A and a second shell 200B that are detachably connected, and the first shell 200A and the second shell 200B are surrounded to form a accommodating cavity; along the overall extension direction of the shell 200, the light-transmitting window 220 is located at one end of the shell 200, and the other end of the shell 200 is provided with a line inlet portion 210 and a holding portion 240; the presence of the holding portion 240 facilitates the operator's holding; the presence of the line inlet portion 210 facilitates the connection of the inspection device 10 with other equipment through the line inlet portion 210.

[0110] In the embodiments of the present application, Figures 2 to 6As shown, the inspection device 10 further includes a light emitting member 300 and a mounting frame 400, the light emitting member 300 and the mounting frame 400 are located in the accommodating cavity and connected to the housing 200; the light emitting member 300 and the camera assembly 100 are mounted on the mounting frame 400, the light emitting member 300 is arranged around the light splitting member 110, and the light emitting side of the light emitting member 300 faces the light transmission window 220. After the light emitting member 300 is arranged around the light splitting member 110, the light emitted by the light emitting member 300 can pass through the light transmission window 220 and project toward the object to be inspected, so that the camera assembly 100 can capture an image of the object to be inspected. In addition, when installing the inspection device 10, the light-emitting component 300 and the camera assembly 100 can be first adjusted on the mounting frame 400, and then the adjusted light-emitting component 300, the camera assembly 100 and the mounting frame 400 can be installed together in the shell 200, thereby improving the relative position accuracy between the light-emitting component 300, the camera assembly 100 and the mounting frame 400 and improving the reliability of the inspection result.

[0111] Specifically, the light emitted by the light emitting element 300 may include at least one of white light, green light, red light, blue light, infrared light and ultraviolet light, thereby providing a variety of lighting spectra for the inspected part of the object to be inspected, thereby enabling the inspection device 10 to perform different detections on the inspected part of the object to be inspected.

[0112] Exemplarily, the light emitted by the plurality of light emitting elements 300 may be white light, and the spectrum of the white light may be 420-680 nm. The plurality of light emitting elements 300 may provide white light illumination for the inspected portion of the inspected object, so that the inspection device 10 may perform conventional white light inspection on the inspected portion of the inspected object.

[0113] Exemplarily, the light emitted by the plurality of light emitting elements 300 may include at least one of green light, red light and blue light; specifically, the wavelength range of green light is 500-580nm, and the central wavelength of green light may be 540nm; specifically, the wavelength range of red light is 580-680nm, and the central wavelength of red light may be 650nm; specifically, the wavelength range of blue light is 400-500nm, and the central wavelength of blue light may be 415nm. The plurality of light emitting elements 300 may provide green light, red light and blue light illumination for the part to be inspected of the object to be inspected, so that the inspection device 10 may perform narrow band imaging (NBI) detection on the lower epidermal blood vessels and upper epidermal blood vessels of the part to be inspected of the object to be inspected.

[0114] Exemplarily, the light emitted by the plurality of light emitting elements 300 may be infrared light, the wavelength range of the infrared light being ≥ 700 nm, and the central wavelength of the infrared light being 780 nm. The plurality of light emitting elements 300 may provide infrared light for the part to be inspected of the object to be inspected, so as to excite the targeted agent at the part to be inspected of the object to be inspected to emit fluorescence, thereby enabling the inspection device 10 to perform targeted agent fluorescence detection on the part to be inspected of the object to be inspected.

[0115] Exemplarily, the light emitted by the plurality of light emitting elements 300 may be ultraviolet light, the wavelength range of the ultraviolet light may be ≤400nm, and the central wavelength of the ultraviolet light may be 340nm. The plurality of light emitting elements 300 may provide ultraviolet light for the part to be inspected of the object to be inspected, so as to excite the part to be inspected of the object to be inspected to emit fluorescence, so that the inspection device 10 may perform autofluorescence detection on the part to be inspected of the object to be inspected.

[0116] In addition, the inspection device 10 provided by the present application also includes an electrically connected key assembly 500 and a circuit board assembly 600; a key window 230 is also provided on the housing 200, and the key assembly 500 and the circuit board assembly 600 are installed on the housing 200 and located in the accommodating cavity of the housing 200, and some keys of the key assembly 500 extend into the key window 230, so that it is convenient for the operator to operate the keys. At the same time, the light-emitting component 300 and the camera assembly 100 are also electrically connected to the circuit board assembly 600, so that after the operator operates the keys, the operating state of the light-emitting component 300 and the camera assembly 100 can be controlled.

[0117] Next, the structure of the circuit board assembly 600 is described in detail: Figure 5 and Figure 6 As shown, the circuit board assembly 600 includes an electrically connected main control board 610 and an image processing board 620, the image processing board 620 is arranged between the main control board 610 and the key assembly 500, and the key assembly 500 and the camera assembly 100 are both electrically connected to the image processing board 620. Therefore, the key assembly 500 and the camera assembly 100 can both be electrically connected to the main control board 610 through the image processing board 620; when the operator presses the key on the key assembly 500, the main control board 610 can transmit the control signal to the camera assembly 100, and then can control the first camera 130, the second camera 140, and the motor in the camera assembly 100. Specifically, the first camera 130, the second camera 140, and the voice coil motor 170 in the camera assembly 100 are electrically connected to the image processing board 620.

[0118] In addition, the light emitting element 300 in the above embodiment can be electrically connected to the main control board 610, and the external power transmission line can be electrically connected to the main control board 610 through the line inlet 210. The light emitting element 300 and the main control board 610 can be electrically connected through a flexible circuit board, and the key assembly 500, the camera assembly 100 and the image processing board 620 can also be electrically connected through a flexible circuit board.

[0119] It should be noted that Fig.11 and Fig.12 As shown, the inspection device 10 provided in the present application can be used alone or in combination with other devices.

[0120] like Fig.11 As shown, the inspection device 10 can be used in combination with the endoscope 20, and the inspection device 10 is installed in the endoscope 20 and electrically connected to the endoscope 20. The endoscope 20 is a visual medical device used to inspect and / or treat human cavities. For example, the endoscope 20 can be a hysteroscope, a nasal cavity, or a laparoscope. Specifically, the endoscope 20 can include a first operating handle 910, a mirror tube 920, and an endoscope circuit board, and the mirror tube 920 is connected to the first operating handle 910; the bottom end of the first operating handle 910 has an open cavity, and the endoscope circuit board is installed in the cavity. At the same time, the inspection device 10 is also installed in the cavity and electrically connected to the endoscope circuit board. Thus, the inspection device 10 can inspect and treat the first inspection position; the first inspection position can be a human cavity such as the uterine cavity, the nasal cavity, and the abdominal cavity. When inspecting and treating the first inspection position, the mirror tube 920 is inserted into the interior of the first inspection position and can obtain the internal image, and transmit the image to the inspection device 10 through the endoscope circuit board.

[0121] like Fig.12As shown, the inspection device 10 can be used in combination with the dilator 30, and the inspection device 10 is installed in the dilator 30. The dilator 30 is a device that can be inserted into a human cavity with a closed opening, such as the vagina, to expand the space of the human cavity, thereby facilitating the inspection of the human cavity. Specifically, the dilator 30 includes a second operating handle 930, an upper leaf 940 and a lower leaf 950, and the upper leaf 940 and the lower leaf 950 are both connected to the second operating handle 930; the bottom end of the second operating handle 930 has an open cavity, and the inspection device 10 is installed in the cavity; in addition, the top end of the second operating handle 930 also has a visual window, the lower leaf 950 is located below the visual window, and the upper leaf 940 is located above the visual window. The upper leaf 940 can rotate relative to the second operating handle 930 to open or close with the lower leaf 950; when the upper leaf 940 and the lower leaf 950 are opened, the visible window can be exposed; when the upper leaf 940 and the lower leaf 950 are closed, the visible window can be blocked. Thus, when the inspection device 10 inspects the second inspection position, such as the vagina, the upper leaf 940 can be controlled to rotate relative to the second operating handle 930 so as to close with the lower leaf 950, and the closed upper leaf 940 and lower leaf 950 are inserted into the second inspection position; then, the upper leaf 940 is controlled to rotate in the opposite direction relative to the second operating handle 930 so as to open with the lower leaf 950 to expose the visible window and expand the space of the second inspection position. At this time, the inspection device 10 can obtain an image of the second inspection position through the exposed visible window, thereby inspecting the second inspection position.

[0122] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0123] The device or element referred to in this application or by implication must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application. In the description of this application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0124] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A camera assembly, characterized in that: include: A beam splitter, provided with a first light emitting surface, the beam splitter is used to split the light incident on the beam splitter into multiple beams of light with different directions, so that one of the multiple beams of light is incident on the first light emitting surface; A light guide having a light-incoming surface, the light-incoming surface facing the first light-emitting surface, and light emitted to the first light-emitting surface is configured to pass through the first light-emitting surface and the light-incoming surface in sequence; A first camera element, the first camera element is facing the light guide element and is used to receive the light guided by the light guide element; An anti-light reflection structure is provided between the light splitter and the light guide, and the light emitted toward the first light emitting surface passes through the anti-light reflection structure.

2. The camera assembly according to claim 1, characterized in that: The light-incoming surface is in contact with at least a portion of the first light-emitting surface to form the light-preventing reflection structure; Alternatively, the camera assembly also includes a light-transmitting component, which is located between the light-input surface and the first light-output surface; along the relative direction of the light-input surface and the first light-output surface, two sides of the light-transmitting component are respectively in contact with the light-input surface and the first light-output surface to form the anti-light reflection structure.

3. The camera assembly according to claim 2, characterized in that: The difference in refractive index between the light splitting element and the light guiding element is smaller than a set value; And / or, when the light-transmitting element is filled between the light-incoming surface and the first light-emitting surface, the maximum difference in refractive index among the light-splitting element, the light-guiding element and the light-transmitting element is less than a set value.

4. The camera assembly according to any one of claims 1 to 3, characterized in that: The light splitter and the light guide are prism elements; And / or, the beam splitter comprises two mutually attached right-angle prisms, the attached surface between the two right-angle prisms forms a beam splitter surface, and the beam splitter surface is used to split the light incident on the beam splitter into two beams of light in different directions; And / or, a reflecting surface and an output surface are also provided on the light guide, the reflecting surface is located between the output surface and the light incident surface, and the first camera element is facing the output surface; the light emitted to the first light output surface is configured to pass through the first light output surface, the light incident surface, the reflecting surface, the output surface and the first camera element in sequence.

5. The camera assembly according to any one of claims 1 to 3, characterized in that: The position of the first camera element relative to the light guide element is adjustable; The camera assembly further includes a voice coil motor, the first camera component is connected to the voice coil motor, and the voice coil motor is used to drive the first camera component to move relative to the light guide component; or, the camera assembly further includes a screw assembly, the first camera component is connected to a slider of the screw assembly, and the screw assembly is used to drive the first camera component to move relative to the light guide component.

6. The camera assembly according to any one of claims 1 to 3, characterized in that: It also includes a second camera element; a second light-emitting surface is also provided on the light-splitting element, the first light-emitting surface and the second light-emitting surface are oriented in different directions, and one of the multiple beams of light is configured to be emitted toward the second light-emitting surface; the second camera element faces the second light-emitting surface.

7. The camera assembly according to claim 6, characterized in that: The first camera element and the second camera element have different focal lengths; And / or, the first camera and the second camera have different fields of view; And / or, the position of the first camera element relative to the light guide element is adjustable.

8. The camera assembly according to claim 6, characterized in that: A line connecting the center of the first camera element and the center of the beam splitter is a first line, and a line connecting the center of the second camera element and the center of the beam splitter is a second line; an angle between the first line and the second line is an acute angle.

9. An inspection device, characterized in that: It comprises a shell and the camera assembly as described in any one of claims 1-8, wherein the shell has a accommodating cavity inside, and the camera assembly is arranged in the accommodating cavity; a light-transmitting window connected to the accommodating cavity is opened on the shell, and the light-incoming side of the beam splitter of the camera assembly faces the light-transmitting window.

10. The inspection device according to claim 9, characterized in that: It also includes a light-emitting component and a mounting frame, wherein the light-emitting component and the mounting frame are located in the accommodating cavity and connected to the housing; The light emitting element and the camera assembly are mounted on the mounting frame. The light emitting element is arranged around the light splitting element, and the light emitting side of the light emitting element faces the light transmission window.

Images