Light source structure and image acquisition device

Abstract

The present application discloses a light source structure and an image acquisition device, which belongs to the field of image acquisition technology. The light source structure includes a substrate, a first light group and a second light group, the substrate having a near-field area and a far-field area; the first light group is arranged on the substrate and located in the near-field area, and is used to emit the light required to obtain the material information of the acquisition object; the second light group is arranged on the substrate and located in the far-field area, and is used to emit the light required to obtain the environmental information of the acquisition object; wherein the first light group and the second light group can both emit white light and colored light. By providing the first light group in the near-field area and the second light group in the far-field area, and the first light group and the second light group can both emit white light and colored light, it is possible to flexibly adjust according to different application scenarios and the characteristics of the acquisition object to ensure the convenience of use and the accuracy of subsequent image acquisition and analysis effects.

Description

Technical Field

[0001] The present application belongs to the field of image acquisition technology, and in particular, relates to a light source structure and an image acquisition device. Background Art

[0002] 3D reconstruction refers to the establishment of a mathematical model suitable for computer representation and processing of 3D objects. It is the basis for processing, operating and analyzing the properties of 3D objects in a computer environment, and is also a key technology for establishing virtual reality in computers to express the objective world. Among them, 3D reconstruction of the human body has great application prospects in the fields of human body analysis and entertainment, and also contributes to the development of technologies such as human key point detection, face recognition and human body editing.

[0003] Light source is an important part of the 3D reconstruction system. With the help of light source, the information of the light reflection field of the object is accurately collected, so as to obtain information such as the material of the object. However, currently only light sources that emit white light are used for illumination. This means that in the process of 3D reconstruction, it is necessary to open light sources in different directions at different times to collect at least three images, which is difficult to apply to moving objects. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a light source structure and an image acquisition device, which can be flexibly adjusted according to different application scenarios and characteristics of the acquisition object by providing a first light group arranged in the near field area and a second light group arranged in the far field area, and both the first light group and the second light group can emit white light and colored light, so as to ensure the convenience of use and the accuracy of the subsequent image acquisition and analysis effects.

[0005] In a first aspect, the present application provides a light source structure, comprising:

[0006] a substrate having a near-field region and a far-field region;

[0007] A first light group, disposed on the substrate and located in the near field area, for emitting light required for obtaining material information of the collected object;

[0008] The second light group is arranged on the substrate and located in the far field area, and is used to emit the light required to obtain the environmental information of the collection object; wherein,

[0009] The first lamp group and the second lamp group can both emit white light and colored light.

[0010] According to the light source structure of the present application, the light emitted by the first light group can help to subsequently identify or analyze the texture, color or other characteristics of the surface of the collection object; the light emitted by the second light group helps to simulate the environment around the collection object, making the subsequent image collection and sharing more accurate. At the same time, since the first light group and the second light group can both emit white light and colored light, the light source structure can adjust the color of the light emitted as needed to adapt to different lighting requirements, that is, if the light emitted by the first light group is white, it is convenient to subsequently collect at least three images at different times through the white light polarization method to achieve material resolution, which is suitable for static collection objects; if the light emitted by the first light group is colored, it is convenient to subsequently collect an image through the color photometric stereo method in conjunction with the environment simulated by the second light group to achieve material resolution, which is suitable for dynamic collection objects, thereby improving the flexibility and adjustability of the light source structure and having a wider range of uses.

[0011] According to one embodiment of the present application, the far field region includes:

[0012] a central area, a portion of the second lamp group is located in the central area;

[0013] An extended area, another part of the second light group is located in the extended area, and the near-field area is located between the central area and the extended area, and the extended area is used to supplement the central area with light.

[0014] According to an embodiment of the present application, the first lamp group includes a plurality of first lamp beads, the second lamp group includes a plurality of second lamp beads and a plurality of third lamp beads, and the substrate includes:

[0015] A main body, a plurality of the first lamp beads are arranged around the edge of the main body, and a plurality of the second lamp beads are installed at the center of the main body;

[0016] A plurality of annular intervals are arranged on the extension portion of the outer peripheral wall of the main body, each of the extension portions is provided with a plurality of the third lamp beads, and the first lamp group and the second lamp group are located on the same side of the main body.

[0017] According to an embodiment of the present application, a surface of the main body portion on which the second lamp bead is disposed and a surface of the extension portion on which the third lamp bead is disposed are continuous planes.

[0018] According to one embodiment of the present application, a plurality of second lamp bead arrays are distributed at the center of the main body, the centers of a plurality of second lamp beads located at the periphery are connected to form a polygon, and the extension portion and each segment of the polygon are arranged opposite to each other.

[0019] According to one embodiment of the present application, it also includes:

[0020] A lens module, wherein the lens module comprises a plurality of lenses, and the lenses correspond one-to-one to the plurality of first lamp beads of the first lamp group;

[0021] An optical glass module, wherein the lens module is located between the optical glass module and the substrate, and the optical glass module comprises a plurality of optical glasses, and the optical glasses correspond one to one with the first lamp beads emitting white light.

[0022] According to one embodiment of the present application, it also includes:

[0023] A lamp cup pressing plate, on which a plurality of mounting through holes corresponding to the lenses are formed, and the optical glass module and the lens module are respectively located on two sides of the lamp cup pressing plate;

[0024] At least one positioning member, two ends of which are detachably connected to the lamp cup pressing plate and the base plate respectively.

[0025] According to an embodiment of the present application, the lamp cup pressing plate is provided with an avoidance hole, the axis of the avoidance hole is parallel to the axis of the mounting through hole, and at least a portion of the second lamp group is exposed in the avoidance hole.

[0026] According to one embodiment of the present application, it also includes:

[0027] The heat dissipation module is arranged on a side of the substrate away from the first lamp group.

[0028] In a second aspect, the present application provides an image acquisition device, the image acquisition device comprising:

[0029] A bracket, wherein the bracket is spherical, and the center of the bracket is used to set the collection object;

[0030] a plurality of image acquisition units, wherein the plurality of image acquisition units are evenly arranged on the bracket; and

[0031] A plurality of light source structures as described above are evenly arranged on the bracket.

[0032] According to the image acquisition device of the present application, by arranging a first light group located in the near-field area and a second light group located in the far-field area in the light source structure, and the first light group and the second light group can both emit white light and colored light, it is possible to flexibly adjust according to different application scenarios and characteristics of the acquisition object to ensure convenience of use and accuracy of subsequent image acquisition and analysis results.

[0033] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 is a structural schematic diagram of a light source structure provided in an embodiment of the present application;

[0036] Figure 2 is a schematic diagram of a structure in which a substrate provided in an embodiment of the present application cooperates with a first lamp group and a second lamp group respectively;

[0037] Figure 3 It is a partial schematic diagram of the substrate provided in the embodiment of the present application cooperating with the first lamp group and the second lamp group respectively;

[0038] Figure 4 It is a structural schematic diagram of the image acquisition device provided in an embodiment of the present application.

[0039] Reference numerals:

[0040] 100. Light source structure;

[0041] 110. substrate; 111. main body; 112. extension part;

[0042] 121, the first lamp bead; 122, the second lamp bead; 123, the third lamp bead;

[0043] 130, digital tube; 140, lens; 150, optical glass;

[0044] 160. Lamp cup pressure plate; 161. Mounting through hole; 162. Avoidance hole;

[0045] 170. Positioning member; 181. Driving board; 182. Lamp holder;

[0046] 191. Radiator; 192. Fan;

[0047] 200. bracket; 300. image acquisition unit; 400. controller. DETAILED DESCRIPTION

[0048] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0049] Reference below Figure 1-Figure 4 The light source structure 100 provided in the embodiment of the present application is described. The light source structure 100 includes a substrate 110, a first lamp group and a second lamp group.

[0050] The substrate 110 has a near field region and a far field region. The material of the substrate 110 includes but is not limited to hard plastic, aluminum, copper, ceramic or glass. It should be noted that the shape and size of the substrate 110, the near field region and the far field region can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0051] The first light group is arranged on the substrate 110 and is located in the near field area, and is used to emit the light required to obtain the material information of the collected object; the second light group is arranged on the substrate 110 and is located in the far field area, and is used to emit the light required to obtain the environmental information of the collected object; wherein the first light group and the second light group can both emit white light and colored light.

[0052] It is understandable that the light emitted by the first light group can help to subsequently identify or analyze the texture, color or other characteristics of the surface of the collection object; the light emitted by the second light group helps to simulate the environment around the collection object, making the subsequent image collection and sharing more accurate. At the same time, since the first light group and the second light group can both emit white light and colored light, it is convenient for the light source structure 100 to adjust the color of the light emitted as needed to adapt to different lighting requirements, that is, if the light emitted by the first light group is white, it is convenient to subsequently collect at least three images at different times through the white light polarization method to achieve material resolution, which is suitable for static collection objects; if the light emitted by the first light group is colored, it is convenient to subsequently collect an image through the color photometric stereo method in conjunction with the environment simulated by the second light group to achieve material resolution, which is suitable for dynamic collection objects, thereby improving the flexibility and adjustability of the light source structure 100 and having a wider range of uses.

[0053] According to the light source structure 100 provided in the embodiment of the present application, by providing a first light group in the near-field area and a second light group in the far-field area, and both the first light group and the second light group can emit white light and colored light, it is possible to flexibly adjust according to different application scenarios and characteristics of the collection object to ensure convenience of use and accuracy of subsequent image collection and analysis effects.

[0054] In some embodiments, Figure 1 and Figure 2 As shown, the far-field area includes a central area and an extended area, a part of the second light group is located in the central area; another part of the second light group is located in the extended area, and the near-field area is located between the central area and the extended area, and the extended area is used to supplement the central area with light.

[0055] It can be understood that by setting a part of the second light group in the central area to provide the main lighting and simulate or enhance the ambient light around the collection object as much as possible, the other part of the second light group is set in the extended area to increase the light density of the light source structure 100 as much as possible, and the near-field area is located to ensure that the lighting around the collection object is uniform and there is no obvious shadow or brightness difference, providing a more refined and realistic lighting effect.

[0056] In some embodiments, Figure 1 and Figure 2 As shown, the first lamp group includes a plurality of first lamp beads 121, the second lamp group includes a plurality of second lamp beads 122 and a plurality of third lamp beads 123, the substrate 110 includes a main body 111 and a plurality of extension portions 112 annularly spaced apart and arranged on the outer peripheral wall of the main body 111, the plurality of first lamp beads 121 are arranged around the edge of the main body 111, and the plurality of second lamp beads 122 are installed at the center of the main body 111; each extension portion 112 is provided with a plurality of third lamp beads 123, and the first lamp group and the second lamp group are located on the same side of the main body 111.

[0057] It can be understood that the edge portion of the surface of the main body 111 is the near-field area, and the plurality of first lamp beads 121 surround the edge of the main body 111, which helps to provide uniform edge lighting and facilitates capturing the outline and details of the collected object. The central portion of the surface of the main body 111 is the central area, and the plurality of second lamp beads 122 are installed at the center of the main body 111 to provide the main lighting required by the environment and highlight the central features of the collected object as much as possible. The surface of each extension 112 constitutes an extended area, and the plurality of third lamp beads 123 are respectively arranged on the extension 112 to provide auxiliary lighting, enhance the transition between the center and the edge of the main body 111 when emitting light, and reduce the possibility of shadows. By reasonably configuring the first lamp beads 121, the second lamp beads 122 and the third lamp beads 123, comprehensive illumination of the collected object is achieved, shadows and highlight areas are reduced, and image quality is improved.

[0058] In this embodiment, the main body 111 and the extension portion 112 are an integrally formed structure to enhance the overall strength of the substrate 110 .

[0059] In this embodiment, the multiple first lamp beads 121 include but are not limited to first lamp beads 121 that emit red light, first lamp beads 121 that emit green light, first lamp beads 121 that emit blue light, and first lamp beads 121 that emit white light. The number and specific distribution of first lamp beads 121 of various colors can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0060] Similarly, the plurality of second lamp beads 122 include but are not limited to second lamp beads 122 emitting red light, second lamp beads 122 emitting green light, second lamp beads 122 emitting blue light, second lamp beads 122 emitting amber light, second lamp beads 122 emitting cyan light and second lamp beads 122 emitting white light. The number and specific distribution of second lamp beads 122 of various colors can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0061] Similarly, the multiple third lamp beads 123 include but are not limited to third lamp beads 123 emitting red light, third lamp beads 123 emitting green light, third lamp beads 123 emitting blue light and third lamp beads 123 emitting white light. The number and specific distribution of third lamp beads 123 of various colors can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0062] In some embodiments, Figure 1 and Figure 2 As shown, a surface of the main body 111 provided with the second lamp beads 122 and a surface of the extension portion 112 provided with the third lamp beads 123 are continuous planes.

[0063] It is understandable that by making the side of the main body 111 provided with the second lamp beads 122 and the side of the extension 112 provided with the third lamp beads 123 a continuous plane, not only the first lamp group and the second lamp group are on the same side of the substrate 110, but also it is helpful to achieve a smooth transition from the main body 111 to the extension 112, reduce the light and dark boundaries in the lighting, and provide a more uniform lighting effect. At the same time, it also simplifies the cleaning and maintenance process of the substrate 110, reduces the loss of light during the propagation process, helps to evenly distribute and dissipate heat, and plays a role in extending the service life of the light source structure 100.

[0064] In some embodiments, Figures 1 to 3 As shown, a plurality of second lamp beads 122 are arrayed at the center of the main body 111, and the centers of the plurality of second lamp beads 122 located at the periphery are connected to form a polygon, and the extension portion 112 and each segment of the polygon are arranged opposite to each other.

[0065] It is understandable that the centers of the second lamp beads 122 located at the periphery are connected to form a polygon, which helps to optimize the distribution of light, so that the light source structure 100 can illuminate the collection object more evenly. At the same time, the extension part 112 is arranged one by one opposite to each segment of the polygon, which helps to ensure that the light emitted from the extension part 112 can correspond to the light of each segment of the polygon, provide more uniform and comprehensive lighting, and reduce the shadows caused by the uneven distribution of the second lamp beads 122 and the third lamp beads 123, thereby improving the lighting quality. Exemplarily, the centers of the second lamp beads 122 located at the periphery are connected to form a hexagon, and the number of the extension parts 112 is also set to six.

[0066] It should be noted that, in this embodiment, “the second lamp beads 122 located at the periphery” refers to Figure 3 In the figure, the plurality of second lamp beads 122 are connected by dotted lines, and the polygon is a hexagon formed by the dotted lines.

[0067] In some embodiments, Figure 1 As shown, the light source structure 100 also includes a lens module and an optical glass module. The lens module includes a plurality of lenses 140, and the lenses 140 correspond one-to-one to a plurality of first lamp beads 121 of the first lamp group; the lens module is located between the optical glass module and the substrate 110, and the optical glass module includes a plurality of optical glasses 150, and the optical glasses 150 correspond one-to-one to the first lamp beads 121 emitting white light.

[0068] It is understandable that by making the lens 140 correspond to the first lamp bead 121 one by one, the direction and shape of the light beam emitted by each first lamp bead 121 can be accurately controlled to ensure that the lighting is more concentrated and directional. By making the optical glass 150 correspond to the first lamp bead 121 emitting white light one by one, a hardware foundation is provided for material solution using the white light polarization method.

[0069] In some embodiments, Figure 1 As shown, the light source structure 100 also includes a lamp cup pressing plate 160 and at least one positioning member 170. The lamp cup pressing plate 160 is provided with a plurality of mounting through holes 161 corresponding to the lenses 140 one by one. The optical glass module and the lens module are respectively located on both sides of the lamp cup pressing plate 160; the two ends of the positioning member 170 are detachably connected to the lamp cup pressing plate 160 and the substrate 110 respectively. It should be noted that the positioning member 170 includes but is not limited to pins, bolts, etc. The number and shape of the mounting through holes 161 and the positioning member 170 can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0070] It is understandable that the lamp cup pressing plate 160 provides a stable support point for each lens 140 by opening a mounting through hole 161 corresponding to the lens 140, ensuring that the relative position of the lens 140 and the first lamp bead 121 is accurate and stable, and optimizing the optical performance of the light source structure 100 as much as possible. At the same time, the first positioning member 170 realizes a detachable connection between the lamp cup pressing plate 160 and the substrate 110, which simplifies the assembly process and facilitates subsequent maintenance and replacement of parts. Exemplarily, the lens 140 is abutted against the substrate 110 through the lamp cup pressing plate 160, and the optical module is bonded to the lamp cup pressing plate 160.

[0071] In some embodiments, Figure 1 As shown, the lamp cup pressing plate 160 is provided with an avoidance hole 162 , the axis of the avoidance hole 162 is parallel to the axis of the mounting through hole 161 , and at least a portion of the second lamp group is exposed in the avoidance hole 162 .

[0072] It can be understood that since the second lamp bead 122 is located at the center of the main body 111, and one side of the lamp cup pressing plate 160 is close to the side of the substrate 110 where the lamp group (including the first lamp group and the second lamp group) is provided, on the one hand, the design of the avoidance hole 162 allows the light of the second lamp bead 122 to be unobstructed, reducing the shadow caused by the obstruction of the lamp cup pressing plate 160, which helps to improve the lighting effect; on the other hand, it helps to improve the heat dissipation conditions of the second lamp bead 122, facilitates the replacement or maintenance of the second lamp bead 122, and reduces manufacturing costs.

[0073] In some embodiments, Figure 1 As shown, the light source structure 100 further includes a digital tube 130 , which is disposed on the main body 111 of the substrate 110 and located between the second lamp bead 122 and the first lamp bead 121 , and is used to display the number of the light source structure 100 .

[0074] In some embodiments, Figure 1 As shown, the light source structure 100 also includes a driving board 181 and a lamp holder 182. The driving board 181 is arranged on a side of the substrate 110 away from the lamp cup pressure plate 160 and is electrically connected to the substrate 110 for controlling the lighting or extinguishing of the lamp beads. The driving board 181 is located between the substrate 110 and the lamp holder 182. The lamp holder 182 is used to be installed on the bracket 200 of the image acquisition device.

[0075] In some embodiments, Figure 1 As shown, the light source structure 100 further includes a heat dissipation module, which is disposed on a side of the substrate 110 away from the first lamp group.

[0076] It is understandable that the lamp beads (including the first lamp bead 121, the second lamp bead 122 and the third lamp bead 123) will generate heat when they emit light. The heat dissipation module is arranged on the side of the substrate 110 away from the lamp beads. It does not affect the light emitting path of the lamp beads, but can also dissipate heat for the substrate 110 and the driving board 181, thereby ensuring the overall stable operation of the light source structure 100.

[0077] In this embodiment, Figure 1 As shown, the heat dissipation module includes a heat sink 191 and a fan 192, that is, the optical glass module, the lamp cup pressing plate 160, the lens module, the substrate 110, the heat sink 191, the driving board 181, the fan 192 and the lamp holder 182 are arranged in sequence. It should be noted that the type and size of the heat sink 191 and the fan 192 can be designed according to actual needs, and this example does not impose specific restrictions on this.

[0078] The embodiment of the present application also provides an image acquisition device.

[0079] like Figure 4As shown, the image acquisition device includes a bracket 200, a plurality of image acquisition units 300 and a plurality of the above-mentioned light source structures 100, the bracket 200 is spherical, and the center of the bracket 200 is used to set the acquisition object; the plurality of image acquisition units 300 are evenly arranged on the bracket 200; and the plurality of light source structures 100 are evenly arranged on the bracket 200.

[0080] It should be noted that the image acquisition unit 300 is used to capture images, and the image acquisition unit 300 may be a camera, including but not limited to an RGB camera and a depth camera.

[0081] According to the image acquisition device provided in the embodiment of the present application, by setting a first light group located in the near-field area and a second light group located in the far-field area in the light source structure 100, and the first light group and the second light group can both emit white light and colored light, it is possible to flexibly adjust according to different application scenarios and characteristics of the acquisition object to ensure convenience of use and accuracy of subsequent image acquisition and analysis effects.

[0082] In some embodiments, the image acquisition system also includes a controller 400, which is electrically connected to the light source structure 100 and the image acquisition unit 300, respectively, to adjust the light color, light time and light intensity of each light source structure 100, and drive the image acquisition unit 300 to shoot the acquisition object to obtain multiple image information for subsequent three-dimensional reconstruction.

[0083] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship. Among them, the terms "first position" and "second position" are two different positions.

[0084] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0085] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, 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 utility model can be understood according to specific circumstances.

[0086] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0087] In the description of the present application, “plurality” means two or more.

[0088] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0089] In the description of the present application, a first feature being “above”, “above”, and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0090] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0091] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A light source structure, characterized in that: include: A substrate (110), wherein the substrate (110) has a near-field region and a far-field region; A first lamp group, arranged on the substrate (110) and located in the near field area, for emitting light required for obtaining material information of the collected object; The second lamp group is arranged on the substrate (110) and located in the far field area, and is used to emit the light required to obtain the environmental information of the collection object; wherein: The first lamp group and the second lamp group can both emit white light and colored light.

2. The light source structure according to claim 1, characterized in that: The far field region includes: a central area, a portion of the second lamp group is located in the central area; An extended area, another part of the second light group is located in the extended area, and the near-field area is located between the central area and the extended area, and the extended area is used to supplement the central area with light.

3. The light source structure according to claim 2, characterized in that: The first lamp group comprises a plurality of first lamp beads (121), the second lamp group comprises a plurality of second lamp beads (122) and a plurality of third lamp beads (123), and the substrate (110) comprises: A main body (111), a plurality of the first lamp beads (121) are arranged around the edge of the main body (111), and a plurality of the second lamp beads (122) are installed at the center of the main body (111); A plurality of annular extension portions (112) are arranged at intervals on the outer peripheral wall of the main body (111), each of the extension portions (112) is provided with a plurality of the third lamp beads (123), and the first lamp group and the second lamp group are located on the same side of the main body (111).

4. The light source structure according to claim 3, characterized in that: A surface of the main body (111) on which the second lamp bead (122) is disposed and a surface of the extension portion (112) on which the third lamp bead (123) is disposed are continuous planes.

5. The light source structure according to claim 3, characterized in that: An array of multiple second lamp beads (122) is distributed at the center of the main body (111), and the centers of multiple second lamp beads (122) located at the periphery are connected to form a polygon, and the extension portion (112) and each segment of the polygon are arranged opposite to each other.

6. The light source structure according to any one of claims 1 to 5, characterized in that: Also includes: A lens module, the lens module comprising a plurality of lenses (140), and the lenses (140) correspond one-to-one to the plurality of first lamp beads (121) of the first lamp group; An optical glass module, wherein the lens module is located between the optical glass module and the substrate (110), and the optical glass module comprises a plurality of optical glasses (150), wherein the optical glasses (150) correspond one-to-one to the first lamp beads (121) that emit white light.

7. The light source structure according to claim 6, characterized in that: Also includes: a lamp cup pressing plate (160), wherein a plurality of mounting through holes (161) corresponding one to one to the lenses (140) are formed on the lamp cup pressing plate (160), and the optical glass module and the lens module are respectively located on two sides of the lamp cup pressing plate (160); At least one positioning member (170), two ends of the positioning member (170) being detachably connected to the lamp cup pressing plate (160) and the base plate (110) respectively.

8. The light source structure according to claim 7, characterized in that: The lamp cup pressing plate (160) is provided with an avoidance hole (162), the axis of the avoidance hole (162) is parallel to the axis of the mounting through hole (161), and at least part of the second lamp group is exposed in the avoidance hole (162).

9. The light source structure according to any one of claims 1 to 5, characterized in that: Also includes: A heat dissipation module is arranged on a side of the substrate (110) away from the first lamp group.

10. An image acquisition device, characterized in that: include: A support (200), wherein the support (200) is spherical, and the center of the support (200) is used to set the collection object; A plurality of image acquisition units (300), wherein the plurality of image acquisition units (300) are evenly arranged on the support (200); as well as A plurality of light source structures according to any one of claims 1 to 9, wherein the plurality of light source structures are evenly arranged on the bracket (200).

Images