Measuring assembly and measuring device

Abstract

The present disclosure provides a measurement assembly, which comprises a sensing unit and a fill light. The sensing unit comprises a housing and a graphic sensing module at least partially received in the housing, the graphic sensing module comprising a lens. The fill light is arranged at the periphery of the lens. The housing comprises a front wall, and a first hollow part is formed in the front wall. A second hollow part is formed on the circumferential outer side of the first hollow part of the front wall. The part between the first hollow part and the second hollow part of the front wall is a light shielding part. The light shielding part can shield the light directly shining on the lens and the light reflected by the dustproof plate to avoid the light of the fill light shining into the lens of the graphic sensing module and affecting the picture taken by the graphic sensing module.

Description

Technical Field

[0001] This disclosure relates to the field of measurement technology, and in particular, to a measurement component and a measurement device. Background Technology

[0002] Measuring equipment is a device that enables remote video monitoring and image displacement measurement. It can be used for video surveillance and displacement measurement in scenarios such as subways, railways, bridges, and dams. Measuring equipment typically requires long-term measurement of the target to determine if displacement has occurred. Measuring equipment usually includes an image sensing module, such as a camera, which captures images of the target. When operating at night or in low-light environments, the images captured by the image sensing module are prone to being blurry. To address this issue, existing measuring equipment usually incorporates supplementary lighting on the image sensing module to illuminate the target and improve image clarity. However, in existing measuring equipment, the light from the supplementary lighting can easily shine into the lens of the image sensing module, affecting the captured image and causing overexposure. Utility Model Content

[0003] In view of this, the present disclosure improves the structure of the fill light to prevent the light from the fill light from shining into the lens of the image sensing module and affecting the image captured by the image sensing module.

[0004] On one hand, this disclosure provides a measurement assembly including a sensing unit and a supplementary light. The sensing unit includes a housing and an image sensing module at least partially housed within the housing, the image sensing module including a lens. The supplementary light is disposed on the outer periphery of the lens; the housing includes a front wall, on which a first cutout is formed, and the orthographic projection of the first cutout on the front wall at least partially covers the orthographic projection of the lens on the front wall. A second cutout is formed circumferentially outward of the first cutout on the front wall, and the orthographic projection of the second cutout on the front wall at least partially covers the orthographic projection of the supplementary light on the front wall. The portion between the first and second cutouts on the front wall is a light-shielding portion.

[0005] In one embodiment, the light-shielding part is configured such that, in the axial direction of the lens, the height of the outer end face of the light-shielding part is higher than or equal to the height of the fill light. A dustproof plate is also included, which covers the front wall and is at least in contact with the outer end face of the light-shielding part.

[0006] In one implementation, the width of the second cutout is greater than the width of the light-emitting area of ​​the fill light in the radial direction of the lens.

[0007] In one embodiment, a light-blocking flange is provided on the inner end face of the front wall, and in the radial direction of the lens, the light-blocking flange is located between the fill light and the lens, and in the axial direction of the lens, the front end face of the lens is located between the front end face and the rear end face of the light-blocking flange.

[0008] In one embodiment, multiple second hollow sections are formed in the circumferential direction of the lens, and at least two supplementary lights are evenly distributed in each second hollow section. The portion between adjacent second hollow sections on the front wall is a connecting portion, and the light-shielding portion is integrally connected to the radially outer portion of the outer wall of the second hollow section through the connecting portion.

[0009] In one embodiment, a first rounded corner is provided between the side wall of the connecting part and part of the outer wall.

[0010] In one embodiment, a second rounded corner is provided between the side wall of the connecting part and the light-shielding part.

[0011] In one embodiment, a first rounded corner is provided between the side wall of the connecting portion and part of the outer wall. A second rounded corner is provided between the side wall of the connecting portion and the light-shielding portion.

[0012] As one implementation, a fixing plate is also included, on which each supplementary light is fixedly mounted, and the fixing plate is fixedly connected to the inner end face of the front wall.

[0013] In one implementation, the width of the fixing plate is greater than the width of the second cutout in the radial direction of the lens.

[0014] In one implementation, a flange is provided on the outer periphery of the front wall to form a groove on the front wall, and a dustproof plate is disposed in the groove.

[0015] As one implementation method, the light from the supplementary light is direct light, with an emission angle of 20 degrees to 160 degrees.

[0016] On the other hand, this disclosure provides a measuring device that includes the above-mentioned measuring components and further includes a base on which the measuring components are supported.

[0017] According to an embodiment of this disclosure, the portion between the first and second hollowed-out portions on the front wall serves as a light-shielding portion. In the radial direction of the lens, the light-shielding portion is located between the fill light and the lens. This light-shielding portion can block the light from the fill light directly shining into the lens, preventing the light from the fill light from directly illuminating the lens of the image sensing module. Attached Figure Description

[0018] It should be understood that the following figures only illustrate certain embodiments of this disclosure and should not be construed as limiting the scope.

[0019] It should be understood that the same or similar reference numerals are used in the accompanying drawings to denote the same or similar elements.

[0020] It should be understood that the accompanying drawings are only schematic, and the dimensions and scales of the elements in the drawings are not necessarily precise.

[0021] It should be understood that the following figures only illustrate certain embodiments of this disclosure and should not be construed as limiting the scope.

[0022] It should be understood that the same or similar reference numerals are used in the accompanying drawings to denote the same or similar elements.

[0023] It should be understood that the accompanying drawings are only schematic, and the dimensions and scales of the elements in the drawings are not necessarily precise.

[0024] Figure 1 This is a schematic diagram of the structure of a measuring device according to an embodiment of the present disclosure.

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the measuring component of the measuring device.

[0026] Figure 3 for Figure 2 An exploded view of the measuring components of the measuring device.

[0027] Figure 4 for Figure 2 A front view of the measuring component's front wall, lens, and fill light.

[0028] Figure 5 for Figure 4 A structural schematic diagram of the front wall, lens, and fill light of the measuring component from another perspective.

[0029] Figure 6 For along Figure 4 A schematic cross-sectional view of a previous measurement component taken from the AA.

[0030] Figure 7 For along Figure 4 A schematic cross-sectional view taken from AA.

[0031] Figure 8 For along Figure 4 Another schematic cross-sectional view of the previous measuring components taken by AA.

[0032] Figure 9 For along Figure 4 Another schematic cross-sectional view taken from AA.

[0033] Figure 10 for Figure 9 A schematic diagram of the path of the reflected light from the measuring component.

[0034] Figure 11For along Figure 4 Another schematic cross-sectional view taken from AA.

[0035] Figure 12 for Figure 2 A schematic diagram of the fixing plate and supplementary light of the measuring component.

[0036] Figure 13 For along Figure 4 Another schematic cross-sectional view taken from AA.

[0037] Figure 14 for Figure 2 A schematic diagram of the housing and dustproof plate of the measuring component.

[0038] Figure 15 for Figure 9 A schematic diagram of the emission angle of the supplementary light in the diagram.

[0039] Explanation of reference numerals in the attached drawings: 100, measuring component; 10, sensing unit; 11, housing; 111, front wall; 1111, first cutout; 1112, second cutout; 1113, inner end face of the front wall; 12, image sensing module; 121, lens; 1211, front end face of the lens; 13, light shield; 131, outer end face of the light shield; 132, inner end face of the light shield; 14, connecting part; 141, first rounded corner; 142, second rounded corner; 15, flange; 20, supplementary light; 30, dustproof plate; 40, light-blocking flange; 41, front end face of the light-blocking flange; 42, rear end face of the light-blocking flange; 50, fixing plate; 51, protrusion; 200, base. Detailed Implementation

[0040] The following will illustrate this solution provided in conjunction with specific embodiments and accompanying drawings.

[0041] Numerous specific details are set forth below to provide an understanding of the structure, function, and use of the embodiments described and illustrated in the specification and figures. It is to be understood that the embodiments described and illustrated herein are non-limiting examples, and thus it will be appreciated that the particular structural and functional details disclosed herein are representative and exemplary. Variations and changes may be made to these embodiments without departing from the scope of the claims.

[0042] This disclosure provides a measuring device. For ease of understanding, the overall structure of the measuring device according to this disclosure will be described below by way of example. It should be understood that the structure of the measuring device is not limited to the following description. For example, one or more elements mentioned below may be omitted or replaced, and their layout relationships may be changed.

[0043] refer to Figure 1The measuring device may include a base 200 and a measuring component 100. The measuring device can be mounted at a predetermined location via the base 200, placing the target object within the measuring range of the device. In some applications, the object being measured may be a subway, railway, or bridge. One end of the base 200, such as the bottom, may be fixed to a support. The support may be a building surrounding the target object. The other end of the base 200, such as the top, may support the measuring component 100.

[0044] The following is for reference. Figure 2 and Figure 3 The overall structure of the measurement component 100 is illustrated below. The measurement component 100 includes a sensing unit 10, a supplementary light 20, and a dustproof plate 30. The sensing unit 10 is used to capture images of the measurement target and can acquire the displacement changes of the target. The sensing unit 10 includes a housing 11 and an image sensing module 12 at least partially housed within the housing 11. The image sensing module 12 can be a camera, video camera, or other device capable of capturing images of the measurement target. The sensing unit 10 may also include a ranging module, such as a laser rangefinder. The housing 11 may include two housings 11, front and rear, which can be fastened together to house the image sensing module 12 within its internal space. The image sensing module 12 may include a lens 121 and other common structures such as a photosensitive element. The lens 121 can focus the light from the object onto the photosensitive element to form a clear image for capturing the scene.

[0045] The supplementary light 20 can be positioned on the outer periphery of the lens 121. In low-light conditions or at night, the supplementary light 20 can emit light to illuminate the target being measured. This disclosure does not limit the type of supplementary light 20; the light emitted by the supplementary light 20 can include visible and non-visible light, such as infrared light. By illuminating the target with the supplementary light 20, the image sensing module 12 can capture a clear image of the target in dim lighting conditions. When the light emitted by the supplementary light 20 is infrared light, the image sensing module 12 can be a device capable of receiving infrared light, such as an infrared camera. Positioning the supplementary light 20 on the outer periphery of the lens 121 ensures that the direction of the light emitted by the supplementary light 20 is aligned with the shooting direction of the lens 121, guaranteeing that the light emitted by the supplementary light 20 illuminates the target being measured. In the radial direction of the lens 121, this disclosure does not limit the distance between the supplementary light 20 and the lens 121. This distance is the vertical distance between the centroid of the supplementary light 20 and the outer periphery of the lens 121. This distance can be maintained within an appropriate range so that the area illuminated by the fill light 20 covers the shooting range of the image sensing module 12, for example, it can be 2mm-30mm, specifically 5mm, 8mm, 12mm, 20mm, or 25mm. Those skilled in the art can determine this distance based on the shooting range of the lens 121 and the illumination range of the fill light 20.

[0046] refer to Figures 3-5 The housing 11 includes a front wall 111. A first cutout 1111 is formed on the front wall 111, and the orthographic projection of the first cutout 1111 on the front wall 111 at least partially covers the orthographic projection of the lens 121 on the front wall 111. That is, the orthographic projection of the first cutout 1111 on the front wall 111 can partially cover the orthographic projection of the lens 121 on the front wall 111; see reference. Figure 4 The orthographic projection of the first hollow portion 1111 onto the front wall 111 can completely cover the orthographic projection of the lens 121 onto the front wall 111. The position of the first hollow portion 1111 corresponds to the lens 121, and the lens 121 can capture measurement images through the first hollow portion 1111.

[0047] In the prior art, the supplementary lighting 20 is generally located on the outer end face of the front wall 111, for example, as shown in the image. Figure 6 As shown, the supplementary light 20 is positioned on the outer periphery of the first hollow portion 1111. In the axial direction y of the lens 121, the front wall 111 is higher than the lens 121, and the supplementary light 20 protrudes from the outer end face of the front wall 111. To ensure that the light emitted by the supplementary light 20 illuminates the measurement target, the distance between the supplementary light 20 and the outer periphery of the first hollow portion 1111 or the outer periphery of the lens 121 cannot be too far. These factors combined make it easy for the light emitted by the supplementary light 20 to enter the lens 121, affecting the captured image.

[0048] Therefore, as Figure 7 As shown, this disclosure provides a second hollow portion 1112 circumferentially outside the first hollow portion 1111 on the front wall 111, and the orthographic projection of the second hollow portion 1112 on the front wall 111 at least partially covers the orthographic projection of the supplementary light 20 on the front wall 111. That is, the orthographic projection of the second hollow portion 1112 on the front wall 111 can partially cover the orthographic projection of the supplementary light 20 on the front wall 111; see reference. Figure 4 The orthographic projection of the second hollow portion 1112 onto the front wall 111 can completely cover the orthographic projection of the supplementary light 20 onto the front wall 111. That is, the position of the second hollow portion 1112 corresponds to the supplementary light 20, and the supplementary light 20 can be partially located within the second hollow portion 1112. The supplementary light 20 can illuminate the measurement target through the second hollow portion 1112.

[0049] refer to Figure 4 , Figure 5 and Figure 7 The portion between the first hollow portion 1111 and the second hollow portion 1112 on the front wall 111 is a light-shielding portion 13. In the radial direction of the lens 121, the light-shielding portion 13 is located between the fill light 20 and the lens 121. The light-shielding portion 13 can block the light from the fill light 20 that shines directly onto the lens, preventing the light from the fill light 20 from directly shining into the lens of the image sensing module 12.

[0050] Furthermore, the light-shielding portion 13 is configured such that, in the axial direction y of the lens 121, the height of the outer end face 131 of the light-shielding portion is higher than or equal to the height of the supplementary light 20. The light-shielding portion 13 can block the light from the supplementary light 20 shining onto the lens 121. In some embodiments, the wall thickness of the front wall 111 can be greater than the height of the supplementary light 20, and the supplementary light 20 can be entirely located within the second hollow portion 1112. In this case, the light-shielding portion 13 can be the wall between the first hollow portion 1111 and the second hollow portion 1112, and the side wall of the second hollow portion 1112 can block the light from the supplementary light 20 shining onto the lens 121.

[0051] refer to Figure 3 The measuring component 100 also includes a dustproof plate 30, which can cover the front wall 111. The dustproof plate 30 can cover the entire front wall 111, or it can cover only part of the front wall 111, for example, only the first cutout 1111 and / or the second cutout 1112. The dustproof plate 30 can prevent external contaminants, such as water and dust, from entering the housing 11 through the first cutout 1111 and the second cutout 1112, thereby contaminating or even damaging the image sensing module 12 inside the housing 11. The dustproof plate 30 is light-transmitting, so that the light emitted by the supplementary light 20 can pass through the dustproof plate 30 and illuminate the measurement target, and the image sensing module 12 can capture images of the measurement target through the dustproof plate 30. This disclosure does not limit the material of the dustproof plate 30; for example, it can be various transparent materials such as glass and plastic. Figure 8 As shown, after the dust cover 30 is installed, a portion of the light emitted by the supplementary light 20 will be reflected by the dust cover 30. If the dust cover 30 is spaced apart from the outer end face 131 of the light-shielding part, a portion of the light emitted by the supplementary light 20 will enter the lens 121 after being reflected by the dust cover 30. Therefore, as Figure 9 As shown, the dustproof plate 30 of this disclosure can at least be attached to the outer end face 131 of the light-shielding part. Therefore, the dustproof plate 30 will not reflect the light emitted by the supplementary light 20 into the lens 121.

[0052] According to the above embodiment, this disclosure uses the portion between the first hollow portion 1111 and the second hollow portion 1112 on the front wall 111 as a light-shielding portion 13. In the radial direction of the lens 121, the light-shielding portion 13 is located between the supplementary light 20 and the lens 121; and in the axial direction of the lens 121, the height of the outer end face 131 of the light-shielding portion is higher than or equal to the height of the supplementary light 20; thus, the light-shielding portion 13 can block the light from the supplementary light 20 shining onto the lens 121. Furthermore, to prevent the light from the supplementary light 20 from entering the lens 121 after being reflected by the dustproof plate 30, the dustproof plate 30 is attached to the outer end face 131 of the light-shielding portion. Therefore, the light-shielding portion 13 can block the light directly shining onto the lens 121 and the light shining onto the lens 121 after being reflected by the dustproof plate 30, thereby preventing the light from the supplementary light 20 from shining into the lens 121 of the image sensing module 12 and affecting the image captured by the image sensing module 12.

[0053] refer to Figure 4 and Figure 7 In the radial direction of the lens 121, the width D of the second hollow portion 1112 can be greater than the width d of the light-emitting area of ​​the supplementary light 20. The light-emitting area of ​​the supplementary light 20 is the portion of the supplementary light 20 that can emit light. The irradiation range of the supplementary light 20 is related to the width D of the second hollow portion 1112 and the distance between the light-emitting area of ​​the supplementary light 20 and the outer end face 131 of the light-shielding portion. The width D of the second hollow portion 1112 is greater than the width d of the light-emitting area of ​​the supplementary light 20 to increase the irradiation range of the supplementary light 20 and reduce the risk that some measurement targets will not be illuminated. The width D of the second hollow portion 1112 exceeding the width of the light-emitting area of ​​the supplementary light 20 can be set by those skilled in the art as needed. For example, it can be 1mm-10mm, specifically 2mm, 5mm, and 8mm. Within this range, it can be ensured that the irradiation range of the supplementary light 20 covers the measurement target.

[0054] In the above embodiment, in order to ensure that the illumination range of the supplementary light 20 covers the measurement target, the width D of the second hollow portion 1112 can be greater than the width d of the light-emitting area of ​​the supplementary light 20. At this time, as... Figure 10 In the radial direction x of the lens 121, there is a certain gap between the fill light 20 and the light shield 13. The light emitted by the fill light 20, after being reflected by the dust cover 30, easily shines into the lens 121 through this gap. Therefore, as... Figure 11In this disclosure, a light-blocking flange 40 is provided on the inner end face 1113 of the front wall, and the light-blocking flange 40 is located between the fill light 20 and the lens 121 in the radial direction x of the lens 121. The light-blocking flange 40 can be provided on the inner end face 1113 of the light-shielding part, and in the axial direction of the lens 121, the front end face 1211 of the lens is located between the front end face 41 and the rear end face 42 of the light-blocking flange 40. Thus, while ensuring that the fill light 20 has a large illumination range, it avoids the light emitted by the fill light 20 from being reflected by the dustproof plate 30 and entering the lens 121 through the gap between the fill light 20 and the light-shielding part 13, and can further prevent the light emitted by the fill light 20 from affecting the image captured by the image sensing module 12.

[0055] refer to Figures 3-5 The second hollow portion 1112 has multiple openings in the circumferential direction of the lens 121, and at least two supplementary lights 20 are evenly distributed within each second hollow portion 1112. That is, multiple supplementary lights 20 can be evenly arranged around the outer periphery of the lens 121. In some embodiments, there can be four second hollow portions 1112, arranged around the outer periphery of the lens 121. The number of supplementary lights 20 in each second hollow portion 1112 is at least two. Those skilled in the art can set the number and spacing of the supplementary lights 20 as needed to meet the required light intensity. For example, six supplementary lights 20 can be provided in each second hollow portion 1112. With such an arrangement, the brightness of the measured target can be more uniform, avoiding obvious differences in brightness and darkness in the measured image.

[0056] The portion between adjacent second hollow sections 1112 on the front wall 111 serves as a connecting portion 14. The light-shielding portion 13 is integrally connected to the radially outer outer wall of the second hollow section 1112 via the connecting portion 14. In other words, adjacent second hollow sections 1112 are not connected. The wall between adjacent second hollow sections 1112 can serve as the connecting portion 14 to integrally connect the light-shielding portion 13 to the radially outer outer wall of the second hollow section 1112. Therefore, the light-shielding portion 13 can be part of the front wall 111, eliminating the need for other components or structures to support it during the fabrication of the housing 11. Simultaneously, the connecting portion 14 can also be used to support the supplementary lighting 20. This housing 11 has a simple structure, simplifying the manufacturing process.

[0057] Further, refer to Figure 4 A first rounded corner 141 is provided between the side wall of the connecting portion 14 and the radially outer outer wall of the second hollow portion 1112, and / or a second rounded corner 142 is provided between the side wall of the connecting portion 14 and the light-shielding portion 13. The first rounded corner 141 and the second rounded corner 142 can prevent stress concentration in the housing 11 during manufacturing and use, improve the strength of the housing 11, and thus increase the service life of the housing 11.

[0058] refer to Figure 4 and Figure 12 The measuring assembly 100 of this disclosure also includes a fixing plate 50, on which each supplementary light 20 is fixedly mounted, and the fixing plate 50 is fixedly connected to the inner end face 1113 of the front wall. When there are multiple supplementary lights 20, they can be mounted on the fixing plate 50 and assembled together onto the housing 11 to improve production efficiency. The multiple supplementary lights 20 can be mounted on the front end face of the fixing plate 50. The fixing plate 50 is provided with multiple protrusions 51, which make part of the cross-sectional width of the fixing plate 50 wider. The protrusions 51 can be attached to and fixed to the inner end face 1113 of the front wall. This disclosure does not limit the fixing method of the protrusions 51 to the inner end face 1113 of the front wall; for example, it can be bolted, glued, or welded. When the protrusions 51 are fixedly connected to the inner end face 1113 of the front wall, the multiple supplementary lights 20 can be located within the second hollow portion 1112, reducing the space occupied by the supplementary lights 20.

[0059] Further, refer to Figure 13 In the radial direction of the lens 121, the width of the fixing plate 50 can be greater than the width of the second hollow portion 1112. Therefore, the fixing plate 50 can seal the gap between the fill light 20 and the light shield 13, thereby preventing light reflected by the dustproof plate 30 from entering the lens 121 through the gap between the fill light 20 and the light shield 13. Furthermore, the fixing plate 50 can be simultaneously fixedly connected to the inner end face 1113 of the front wall and the inner end face 132 of the light shield, improving the connection strength between the fixing plate 50 and the housing 11.

[0060] refer to Figure 14 A flange 15 can be provided on the outer periphery of the front wall 111 to form a groove on the front wall 111. A dustproof plate 30 can be disposed in the groove to cover the front wall 111. The dustproof plate 30 can be a flat plate, and the thickness of the dustproof plate 30 can be the same as the depth of the groove. The flange 15 can fit against the dustproof plate 30, thereby extending the leakage path of dust into the space between the dustproof plate 30 and the housing 11, and improving the dustproof effect.

[0061] refer to Figure 15The light emitted by the supplementary light 20 is direct light, not diffused light. The direct light has a specific exit angle α, which represents the illumination range of the supplementary light 20. The exit angle α can be between 20 and 160 degrees, for example, 30, 50, 70, 90, 120, and 140 degrees. Within this exit angle α, the supplementary light 20 can concentrate the emitted light within a certain range, illuminating a greater distance, thus enabling the image sensing module 12 to capture distant measurement targets. Simultaneously, those skilled in the art can adjust the exit angle α of the supplementary light 20, thereby changing the angle of the reflected light, making it less likely for the reflected light to be reflected by the dustproof plate 30 into the lens 121.

[0062] It should be noted that the elements described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0063] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Similarly, "abutment" can refer to a direct abutment or an indirect abutment through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0064] It should be understood that multiple components and / or parts can be provided by a single integrated component or part. Alternatively, a single integrated component or part can be divided into multiple separate components and / or parts. The use of the public designation "a" or "an" to describe a component or part is not intended to exclude other components or parts.

[0065] It should be understood that although terms such as “first” or “second” may be used in this disclosure to describe various elements, these elements are not defined by these terms, which are only used to distinguish one element from another.

[0066] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

[0067] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A measuring component, characterized in that, Includes a sensing unit and a supplementary light; The sensing unit includes a housing and an image sensing module at least partially housed within the housing, the image sensing module including a lens; the fill light is disposed on the outer periphery of the lens; The housing includes a front wall, on which a first cutout is formed, and the orthographic projection of the first cutout on the front wall at least partially covers the orthographic projection of the lens on the front wall; a second cutout is formed on the outer periphery of the first cutout on the front wall, and the orthographic projection of the second cutout on the front wall at least partially covers the orthographic projection of the fill light on the front wall. The portion between the first and second hollowed-out portions on the front wall is a light-shielding portion.

2. The measuring component according to claim 1, characterized in that, The light-shielding part is configured such that, in the axial direction of the lens, the height of the outer end face of the light-shielding part is higher than or equal to the height of the fill light. It also includes a dustproof plate that covers the front wall and is at least in contact with the outer end face of the light-shielding part.

3. The measuring component according to claim 2, characterized in that, In the radial direction of the lens, the width of the second cutout is greater than the width of the light-emitting area of ​​the fill light.

4. The measuring component according to claim 3, characterized in that, A light-blocking flange is provided on the inner end face of the front wall, and in the radial direction of the lens, the light-blocking flange is located between the fill light and the lens, and in the axial direction of the lens, the front end face of the lens is located between the front end face and the rear end face of the light-blocking flange.

5. The measuring component according to claim 1, characterized in that, The second hollow portion has multiple openings in the circumferential direction of the lens, and at least two fill lights are evenly distributed in each second hollow portion; The portion between adjacent second hollow portions on the front wall is a connecting portion, and the light-shielding portion is integrally connected to the outer wall of the radially outer part of the second hollow portion through the connecting portion.

6. The measuring component according to claim 5, characterized in that, A first rounded corner is provided between the side wall of the connecting part and the outer wall of the portion, and / or A second rounded corner is provided between the side wall of the connecting part and the light-shielding part.

7. The measuring component according to any one of claims 1-6, characterized in that, It also includes a fixing plate, on which each of the supplementary lights is fixedly mounted, and the fixing plate is fixedly connected to the inner end face of the front wall.

8. The measuring component according to claim 7, characterized in that, In the radial direction of the lens, the width of the fixing plate is greater than the width of the second hollow portion.

9. The measuring component according to claim 2, characterized in that, A flange is provided on the outer periphery of the front wall to form a groove on the front wall, and the dustproof plate is disposed in the groove.

10. The measuring component according to claim 1, characterized in that, The light from the supplementary light is direct light, with an emission angle of 20 degrees to 160 degrees.

11. A measuring device, characterized in that, The measuring component, as described in any one of claims 1-10, further includes: The measuring component is supported on the base.

Images