Image capturing apparatus, and optical device and segmented control light source thereof
By designing a segmented control light source in the optical detection mechanism, laying out the light emitting parts using the annular layout area on the carrier plate, and independently controlling the light emitting parts through a multi-channel controller, the problem of the detection light being susceptible to shading and causing the brightness to be reduced, achieving a more uniform and high-brightness detection light, and improving the image quality of the object to be measured.
Patent Information
- Application Number
- CN202421816522.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
When the existing optical detection mechanism uses the detection light emitted by multiple light-emitting devices, the outer edge part is easily blocked, resulting in a decrease in the brightness of the light, making it difficult to control the overall distribution of the light, and thus affecting the image quality of the object to be measured.
An imaging device is designed that includes a segmented control light source, layout the light emitting parts using multiple annular layout areas on the carrier board, and independently control the light emitting parts on each layout line through a multi-channel controller to emit detection light. This design ensures that the light emitting components on each layout line can be independently controlled by the combination of an annular layout area and a multi-channel controller, and the light emitting effects are compensated for each other, improving the uniformity and brightness of the detected light.
Through this design, the distribution and brightness of the detected light can be effectively improved, ensuring that the image quality of the object to be measured meets the needs, and solving the problem of light being susceptible to shading in the prior art, resulting in the reduction of brightness.
Smart Images
Figure CN223037768U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an optical detection mechanism, in particular to an imaging device, its optical device and a segmented control light source. Background Art
[0002] When an existing optical detection mechanism takes an image of a to-be-detected object with detection light rays emitted by a plurality of light-emitting elements, since the outer edge portions of the detection light rays are often blocked, the brightness thereof is reduced, so that it is not easy to control the overall distribution of the detection light rays, and further, the image of the to-be-detected object does not meet the actual requirements. Therefore, the applicant believes that the above defects can be improved, and thus specifically studies with concentration and combines the application of scientific principles, and finally proposes the utility model with reasonable design and effective improvement of the above defects. Summary of the Utility Model
[0003] An embodiment of the utility model provides an imaging device, its optical device and a segmented control light source, which can effectively improve the defects that may occur in the existing optical detection mechanism.
[0004] An embodiment of the utility model discloses an imaging device, which includes: an optical device, including: a segmented control light source, including: a carrier board having a layout plane and a plurality of layout lines; wherein, a plurality of annular layout areas arranged in concentric rings are defined on the layout plane, and at least two layout lines are respectively arranged along at least one annular layout area; a plurality of light-emitting elements, which are installed on the layout plane at intervals and are located in the plurality of annular layout areas; in any two adjacent annular layout areas, the number of light-emitting elements arranged in the outer annular layout area is greater than the number of light-emitting elements arranged in the inner annular layout area; wherein, the plurality of light-emitting elements are respectively electrically coupled to the plurality of layout lines, so that each layout line is connected in series with at least two light-emitting elements; and a multi-channel controller, which is electrically coupled to the plurality of layout lines, so that the multi-channel controller can independently control at least two light-emitting elements electrically coupled to each layout line to emit a detection light ray; and a half-reflection mirror having a light guiding surface; wherein, the light guiding surface faces the plurality of light-emitting elements along a first direction, and the light guiding surface is used for facing a to-be-detected object along a second direction perpendicular to the first direction; and an imaging device located on one side of the half-reflection mirror; wherein, when the multi-channel controller drives the plurality of light-emitting elements to emit a plurality of detection light rays towards the light guiding surface, the plurality of detection light rays are reflected by the light guiding surface to the to-be-detected object, and are reflected by the to-be-detected object and penetrate the light guiding surface and then projected onto the imaging device, so that the imaging device obtains an image of the to-be-detected object.
[0005] Optionally, each of the plurality of annular layout areas has a plurality of nodes arranged at equal intervals, and the plurality of light-emitting elements are respectively installed on the plurality of nodes; wherein, the contour of each annular layout area is an N-sided polygon, and N is a positive integer greater than 4.
[0006] Optionally, a plurality of circular layout areas include a first layout area, a second layout area, and a third layout area arranged from the inside out, and the number of connection points in the first layout area, the number of connection points in the second layout area, and the number of connection points in the third layout area form an arithmetic progression.
[0007] Optionally, the difference in the number of at least two light-emitting components connected in series by any two layout lines is not greater than 1.
[0008] Optionally, the brightnesses of multiple detection light beams are different from each other; the plurality of circular layout areas have a center that overlaps with each other, and there is a configuration distance between each light-emitting component and the center; the greater the total sum of the configuration distances of at least two light-emitting components connected in series by any one layout line, the greater the brightness of the detection light beam emitted thereby.
[0009] Optionally, the brightnesses of multiple detection light beams are different from each other, and the layout plane includes a plurality of corner connection points located outside the plurality of circular layout areas and respectively at multiple corners of the carrier board; wherein, each corner connection point is connected to a light-emitting component; wherein, the carrier board includes a boundary line, and the boundary line serially connects the plurality of corner connection points and is electrically coupled to the multi-channel controller, so that the multi-channel controller can independently control the light-emitting components electrically coupled to the boundary line to emit a detection light beam with the maximum brightness.
[0010] An embodiment of the present invention also discloses an optical device of an imaging device, which includes: a segmented control light source, including: a carrier board having a layout plane and a plurality of layout lines; wherein, the layout plane defines a plurality of circular layout areas arranged in concentric rings, and at least two layout lines are respectively arranged along at least one circular layout area; a plurality of light-emitting components are installed on the layout plane at intervals and are located in the plurality of circular layout areas; in any two adjacent circular layout areas, the number of light-emitting components arranged in the outer circular layout area is greater than the number of light-emitting components arranged in the inner circular layout area; wherein, the plurality of light-emitting components are respectively electrically coupled to the plurality of layout lines, so that each layout line is connected in series with at least two light-emitting components; and a multi-channel controller is electrically coupled to the plurality of layout lines, so that the multi-channel controller can independently control at least two light-emitting components electrically coupled to each layout line to emit a detection light beam; and a half-reflection mirror having a light guide surface; wherein, the light guide surface faces the plurality of light-emitting components along a first direction, and the light guide surface is used to face a to-be-detected object along a second direction perpendicular to the first direction.
[0011] An embodiment of the present utility model also discloses a segmented control light source for an imaging device, which includes: a carrier board having a layout plane and a plurality of layout lines; wherein, the layout plane defines a plurality of annular layout areas arranged in concentric rings, and at least two layout lines are respectively arranged along at least one annular layout area; a plurality of light-emitting elements are installed on the layout plane at intervals and located in the plurality of annular layout areas; in any two adjacent annular layout areas, the number of light-emitting elements arranged in the outer annular layout area is greater than the number of light-emitting elements arranged in the inner annular layout area; wherein, the plurality of light-emitting elements are respectively electrically coupled to the plurality of layout lines, so that each layout line is connected in series with at least two light-emitting elements; and a multi-channel controller is electrically coupled to the plurality of layout lines, so that the multi-channel controller can independently control at least two light-emitting elements electrically coupled to each layout line to emit a detection light.
[0012] In summary, the imaging device, its optical device and the segmented control light source disclosed in the embodiment of the present utility model can, through the cooperation of the carrier board, the plurality of light-emitting elements and the multi-channel controller, enable at least two light-emitting elements electrically coupled to each layout line arranged substantially in a ring shape to be independently controlled to emit the detection light, so that the light-emitting effects of the plurality of light-emitting elements connected to different layout lines can compensate each other, which is beneficial for the imaging device to obtain the image of the object to be measured that meets the requirements.
[0013] For a further understanding of the features and technical content of the present utility model, please refer to the following detailed description and drawings of the present utility model. However, these descriptions and drawings are only used to illustrate the present utility model and do not impose any limitation on the protection scope of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Schematic diagram of the imaging device according to the embodiment of the present utility model.
[0015] Figure 2 For Figure 1 Schematic diagram of the carrier board omitting the layout lines.
[0016] Figure 3 For Figure 1 Schematic diagram of the carrier board.
[0017] Figure 4 For Figure 1 Schematic diagram of the carrier board and a plurality of light-emitting elements.
[0018] Figure 5 Schematic diagram of a modified example of the carrier board according to the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following is an implementation mode of the present utility model related to "imaging device, its optical device and segmented control light source" illustrated by specific embodiments. Those skilled in the art can understand the advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present utility model. Additionally, the drawings of the present utility model are only for simple schematic illustration and are not drawn according to actual dimensions. The following implementation modes will further detail the related technical content of the present utility model, but the disclosed content is not used to limit the protection scope of the present utility model.
[0020] It should be understood that although terms such as "first", "second", "third", etc. may be used in this article to describe various components or features, these components or features should not be limited by these terms. These terms are mainly used to distinguish one component from another, or one feature from another. Additionally, the term "or" used in this article should, depending on the actual situation, possibly include any one or a combination of multiple of the associated listed items.
[0021] Please refer to Figures 1 to 5 as shown, which is an embodiment of the present utility model. As Figure 1 shown, this embodiment discloses an imaging device 1000, which can be used to perform an imaging operation on a device under test (DUT) to obtain an image corresponding to the DUT and having a consistent grayscale value. Among them, the imaging device 1000 includes an optical device 100 and an imaging device 200 located on one side of the optical device 100; that is to say, the imaging device 200 and the DUT are respectively located on different sides of the optical device 100 (such as: Figure 1 the upper side and the lower side of the optical device 100 in
[0022] It should be additionally noted that although the imaging device 1000 is illustrated with the optical device 100 paired with the imaging device 200 in this embodiment, the present utility model is not limited thereto. For example, in other embodiments not shown in the present utility model, the optical device 100 can also be used alone (such as: sold) or used in combination with other devices according to actual needs. To facilitate understanding of this embodiment, the components of the optical device 100 will be described first below, and then the connection relationship between the optical device 100 and the imaging device 200 will be introduced.
[0023] The optical device 100 includes a housing 1, a segmented control light source 2 installed in the housing 1, and a half mirror 3 installed in the housing 1. Among them, the half mirror 3 faces the segmented control light source 2 along a first direction D1, and the half mirror 3 faces the device under test DUT along a second direction D2 perpendicular to the first direction D1, and the imaging device 200, the half mirror 3, and the device under test DUT are generally arranged along the second direction D2. Furthermore, the housing 1 may optionally be formed in a light-transmitting shape only on the optical path of the half mirror 3 along the second direction D2, and the remaining parts of the housing 1 are light-impermeable.
[0024] It should be additionally noted that the segmented control light source 2 is described in this embodiment in combination with the housing 1 and the half mirror 3, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the segmented control light source 2 may also be applied independently (such as sold) or used in combination with other components according to actual needs. To facilitate the understanding of this embodiment, the structures of the respective components of the segmented control light source 2 will be described first below, and then its connection relationship will be introduced.
[0025] As Figures 1 to 4 shown, the segmented control light source 2 includes a carrier board 21, a plurality of light-emitting components 22 installed on the carrier board 21, and a multi-channel controller 23 electrically coupled to the carrier board 21. Among them, the carrier board 21 has a layout plane 211, a plurality of layout lines 212, and a boundary line 213. Among them, the layout plane 211 defines a plurality of circular layout areas R arranged in concentric rings, and at least two of the layout lines 212 are each arranged along at least one of the circular layout areas R.
[0026] It should be noted first that the carrier board 21 is, for example, a square circuit board, and its specific layout method can be adjusted and changed into various feasible forms according to actual needs. However, for the convenience of understanding this embodiment, the following content will describe the carrier board 21 in one of the optional layout methods, but the present invention is not limited thereto.
[0027] More specifically, each of the multiple annular layout regions R has a plurality of contact points 2111 arranged at equal intervals, and the configuration of each contact point 2111 can be adjusted and changed according to actual requirements. The same interval is separated between any two adjacent contact points 2111, and the plurality of contact points 2111 on the layout plane 211 are arranged in a non-matrix shape. Among them, the contour of each annular layout region R is an N-sided polygon, where N is a positive integer greater than 4. In this embodiment, the contour of each annular layout region R can be a regular N-sided polygon, and N is illustrated by 6, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, N can also be 4 according to actual requirements.
[0028] Furthermore, the multiple annular layout regions R include a first layout region R1, a second layout region R2, a third layout region R3, and a fourth layout region R4 arranged from the inside to the outside, and the number of contact points 2111 in the first layout region R1, the number of contact points 2111 in the second layout region R2, and the number of contact points 2111 in the third layout region R3 form an arithmetic sequence. For example: the number of contact points 2111 in the first layout region R1, the number of contact points 2111 in the second layout region R2, and the number of contact points 2111 in the third layout region R3 are 6, 12, and 18 in sequence.
[0029] In addition, the fourth layout region R4 is preset with 24 contact points 2111 to conform to the above arithmetic sequence. However, two of the above presets of the contact points 2111 fall outside the carrier 21 and are not configured on the layout plane 211. Therefore, the fourth layout region R4 only includes 22 contact points 2111 in this embodiment, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, when the carrier 21 uses a larger size or a smaller interval is used between any two adjacent contact points 2111, the fourth layout region R4 can include 24 contact points 2111, and other annular layout regions can be further added to the layout plane 211 outside the fourth layout region R4; or, when the carrier 21 uses a smaller size or a larger interval is used between any two adjacent contact points 2111, the fourth layout region R4 can be omitted according to actual requirements on the layout plane 211, or even further omit the third layout region R3.
[0030] Furthermore, to make the light of the segmented control light source 2 have more preferable uniformity, the layout plane 211 may further include a central contact 2112 and a plurality of corner contacts 2113. Among them, a plurality of the annular layout areas R have a central Rc that overlaps with each other. The central contact 2112 is surrounded within the first layout area R1 and located above the central Rc, and a plurality of the corner contacts 2113 are located outside the plurality of annular layout areas R and are respectively located at a plurality of corners 214 of the carrier plate 21, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, when at least one of the contacts 2111 is arranged at each of the corners 214 of the carrier plate 21 adjacent to the outermost annular layout area R, the plurality of corner contacts 2113 can be omitted.
[0031] A plurality of the layout lines 212 generally include a first line 212-1, a second line 212-2, a third line 212-3, a fourth line 212-4, a fifth line 212-5, a sixth line 212-6, and a seventh line 212-7 from the inside to the outside. In this embodiment, the number of the plurality of layout lines 212 corresponds to the number of the contacts 2111 of the layout plane 211, and the difference in the number of the contacts 2111 connected in series by any two of the layout lines 212 may optionally be no more than 1, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, when the number of the plurality of annular layout areas R is three, the number of the plurality of layout lines 212 may be four.
[0032] In addition, to make the light of the segmented control light source 2 have more preferable uniformity, the plurality of layout lines 212 are wired in sequence from the inside to the outside, and in this embodiment, the plurality of layout lines 212 may optionally be wired in a generally spiral extension manner as follows, but the present invention is not limited thereto.
[0033] Furthermore, the first line 212-1 is connected to the central contact 2112, serially connects multiple contacts 2111 of the first layout area R1, and its end 212-1a is connected to a contact 2111 of the second layout area R2. The second line 212-2 serially connects a part of multiple contacts 2111 of the second layout area R2 from one side of the end 212-1a of the first line 212-1. The third line 212-3 serially connects the remaining part of multiple contacts 2111 of the second layout area R2 from the other side of the end 212-1a of the first line 212-1, and serially connects a part of multiple contacts 2111 of the third layout area R3. The fourth line 212-4 serially connects another part of multiple contacts 2111 of the third layout area R3 along the third layout area R3 adjacent to the third line 212-3.
[0034] Moreover, the fifth line 212-5 is connected to a contact 2111 of the third layout area R3 adjacent to the end 212-1a of the first line 212-1 and the fourth line 212-4, and serially connects a part of multiple contacts 2111 of the fourth layout area R4. The sixth line 212-6 serially connects the remaining part of multiple contacts 2111 of the third layout area R3 and another part of multiple contacts 2111 of the fourth layout area R4. The seventh line 212-7 is located on the opposite side of the fifth line 212-5 and serially connects another part of multiple contacts 2111 of the fourth layout area R4. In addition, the boundary line 213 is two sub-lines in this embodiment and serially connects multiple corner contacts 2113 and the remaining part of multiple contacts 2111 of the fourth layout area R4.
[0035] As described above, the first line 212-1, the second line 212-2, the third line 212-3, the fourth line 212-4, the fifth line 212-5, and the seventh line 212-7 each serially connect 8 contacts 2111 in this embodiment Figure 3 while the sixth line 212-6 serially connects 7 contacts 2111, but the present invention is not limited thereto. For example, Figure 5As shown, multiple layout lines 212 can be respectively arranged along multiple circular layout areas R according to actual requirements, so that the difference in the number of contacts 2111 connected in series by any two layout lines 212 is greater than 1. For example, the first line 212-1 connects 6 contacts 2111 in the first layout area R1, the second line 212-2 connects 12 contacts 2111 in the second layout area R2, and the third line 212-3 connects 18 contacts 2111 in the third layout area R3.
[0036] Please refer to Figures 1 to 3 As shown, multiple light-emitting elements 22 are installed on the layout plane 211 at intervals and are located in multiple circular layout areas R. In this embodiment, multiple light-emitting elements 22 are light-emitting diode chips and are respectively installed on multiple contacts 2111, the central contact 2112, and multiple corner contacts 2113. That is to say, the number of multiple light-emitting elements 22 is equal to the sum of the number of multiple contacts 2111, the number of the central contact 2112, and the number of multiple corner contacts 2113.
[0037] Furthermore, multiple light-emitting elements 22 are respectively electrically coupled to multiple layout lines 212 (and the boundary line 213) so that each layout line 212 connects in series at least two light-emitting elements 22. It should be noted that multiple layout lines 212 in this embodiment Figure 2 and Figure 3 adopt irregular wiring, so that the difference in the number of at least two light-emitting elements 22 connected in series by any two layout lines 212 is not greater than 1, which is conducive to controlling the light-emitting effect of multiple light-emitting elements 22 through multiple layout lines 212.
[0038] Thus, multiple light-emitting elements 22 within multiple circular layout areas R are arranged in concentric rings and are evenly distributed. In other words, in any two adjacent circular layout areas R, the number of light-emitting elements 22 arranged in the outer circular layout area R is greater than the number of light-emitting elements 22 arranged in the inner circular layout area R.
[0039] The multi-channel controller 23 is electrically coupled to multiple layout lines 212 and the boundary line 213, so that the multi-channel controller 23 can independently control at least two light-emitting elements 22 electrically coupled to each layout line 212 to emit a detection light L. In addition, the multi-channel controller 23 can also independently control the light-emitting elements 22 electrically coupled to the boundary line 213 to emit a detection light L with the maximum brightness.
[0040] Furthermore, the brightnesses of multiple detection light rays L originating from multiple layout lines 212 may be different from each other. Among them, there is a configured distance between each light-emitting component 22 and the center Rc, and for at least two light-emitting components 22 connected in series by any one of the layout lines 212, the greater the total of the configured distances, the greater the brightness of the detection light ray L emitted by it, but the present invention is not limited thereto.
[0041] The semi-reflective mirror 3 has a light guide surface 31, and in this embodiment, the light guide surface 31 is planar and the normal direction thereof forms an angle of approximately 45 degrees with the first direction D1 (or the second direction D2), but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the light guide surface 31 may also be curved according to actual needs. In this embodiment, the light guide surface 31 faces multiple light-emitting components 22 along the first direction D1 (for example: multiple light-emitting components 22 are located within a projection space formed by the positive projection of the light guide surface 31 along the first direction D1 towards the carrier plate 21), the light guide surface 31 is used to face the DUT along the second direction D2, and the imaging device 200 is located on one side of the semi-reflective mirror 3.
[0042] Thus, when the multi-channel controller 23 drives multiple light-emitting components 22 to emit multiple detection light rays L towards the light guide surface 31, the multiple detection light rays L are reflected by the light guide surface 31 to the DUT, and are reflected by the DUT and penetrate the light guide surface 31 to be projected onto the imaging device 200, so that the imaging device 200 obtains an image of the DUT. Among them, the image may present a similar (such as: the same) gray-scale value according to actual needs, and the present invention does not limit this here.
[0043] [Technical effects of the embodiments of the present invention]
[0044] In summary, the imaging device, its optical device and segmented control light source disclosed in the embodiments of the present invention can, through the cooperation of the carrier plate, multiple light-emitting components, and the multi-channel controller, enable at least two light-emitting components electrically coupled to each layout line arranged substantially in a ring shape to be independently controlled to emit the detection light ray, so that the light-emitting effects of multiple light-emitting components connected to different layout lines can compensate each other, which is beneficial for the imaging device to obtain an image of the DUT that meets the requirements.
[0045] The content disclosed above is only an optional and feasible embodiment of the present utility model, and does not limit the patent scope of the present utility model. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present utility model are included in the patent scope of the present utility model.
Claims
1. An imaging device, characterized in that: The imaging device comprises: An optical device comprising: A segmented light source is controlled, including: A carrier board having a layout plane and a plurality of layout circuits; wherein the layout plane defines a plurality of annular layout areas arranged in concentric rings, and at least two of the layout circuits are respectively arranged along at least one of the annular layout areas; A plurality of light-emitting elements are installed on the layout plane at intervals and located in a plurality of the annular layout areas; in any two adjacent annular layout areas, the number of the light-emitting elements arranged in the annular layout area located on the outer side is greater than the number of the light-emitting elements arranged in the annular layout area located on the inner side; wherein the plurality of light-emitting elements are electrically coupled to a plurality of the layout circuits, respectively, so that each of the layout circuits is connected in series with at least two light-emitting elements; and a multi-channel controller electrically coupled to the plurality of the layout circuits, so that the multi-channel controller can independently control at least two of the light-emitting elements electrically coupled to each of the layout circuits to emit a detection light; and A semi-reflecting mirror having a light-guiding surface; wherein the light-guiding surface faces the plurality of light-emitting elements along a first direction, and the light-guiding surface is used to face an object to be measured along a second direction perpendicular to the first direction; and A camera device, located on one side of the semi-reflective mirror; When the multi-channel controller drives the plurality of light-emitting elements to emit a plurality of detection lights toward the light-guiding surface, the plurality of detection lights are reflected by the light-guiding surface to the object to be tested, and are reflected by the object to be tested and penetrate the light-guiding surface to be projected to the camera device, so that the camera device obtains an image of the object to be tested.
2. The imaging device according to claim 1, characterized in that: Each of the plurality of annular layout areas has a plurality of contacts arranged at equal intervals, and the plurality of light-emitting elements are respectively mounted on the plurality of contacts; wherein the outline of each of the annular layout areas is an N-gon, where N is a positive integer greater than 4.
3. The imaging device according to claim 2, characterized in that: The plurality of annular layout areas include a first layout area, a second layout area, and a third layout area arranged from the inside out, and the number of the contacts in the first layout area, the number of the contacts in the second layout area, and the number of the contacts in the third layout area are in an arithmetic progression.
4. The imaging device according to any one of claims 1 to 3, characterized in that: The difference in the number of at least two light-emitting elements connected in series in any two of the layout circuits is no more than 1.
5. The imaging device according to claim 1, characterized in that: The brightness of the multiple detection lights is different from each other; the multiple annular layout areas have a center that overlaps with each other, and each of the light-emitting elements is separated from the center by a configuration distance; the greater the sum of the configuration distances of at least two light-emitting elements connected in series in any layout circuit, the greater the brightness of the detection light emitted by it.
6. The imaging device according to claim 1, characterized in that: The brightness of the multiple detection lights is different from each other, and the layout plane includes a plurality of corner contacts, which are located outside the multiple annular layout areas and respectively located at the multiple corners of the carrier; wherein each of the corner contacts is connected to a light-emitting component; wherein the carrier includes a boundary circuit, and the boundary circuit is connected in series with the multiple corner contacts and is electrically coupled to the multi-channel controller, so that the multi-channel controller can independently control the light-emitting components electrically coupled to the boundary circuit to emit a detection light with maximum brightness.
7. An optical device for an imaging device, characterized in that: The optical device of the imaging device comprises: A segmented light source is controlled, including: A carrier board having a layout plane and a plurality of layout circuits; wherein the layout plane defines a plurality of annular layout areas arranged in concentric rings, and at least two of the layout circuits are respectively arranged along at least one of the annular layout areas; A plurality of light-emitting elements are installed on the layout plane at intervals and located in a plurality of the annular layout areas; in any two adjacent annular layout areas, the number of the light-emitting elements arranged in the annular layout area located on the outer side is greater than the number of the light-emitting elements arranged in the annular layout area located on the inner side; wherein the plurality of light-emitting elements are electrically coupled to a plurality of the layout circuits, respectively, so that each of the layout circuits is connected in series with at least two light-emitting elements; and a multi-channel controller electrically coupled to the plurality of the layout circuits, so that the multi-channel controller can independently control at least two of the light-emitting elements electrically coupled to each of the layout circuits to emit a detection light; and A semi-reflecting mirror has a light-guiding surface, wherein the light-guiding surface faces the plurality of light-emitting elements along a first direction, and the light-guiding surface is used to face an object to be measured along a second direction perpendicular to the first direction.
8. A segmented control light source of an imaging device, characterized in that: The segmented control light source of the imaging device comprises: A carrier board having a layout plane and a plurality of layout circuits; wherein the layout plane defines a plurality of annular layout areas arranged in concentric rings, and at least two of the layout circuits are respectively arranged along at least one of the annular layout areas; A plurality of light-emitting elements are installed on the layout plane at intervals and located in a plurality of the annular layout areas; in any two adjacent annular layout areas, the number of the light-emitting elements arranged in the annular layout area located on the outer side is greater than the number of the light-emitting elements arranged in the annular layout area located on the inner side; wherein the plurality of light-emitting elements are respectively electrically coupled to a plurality of the layout circuits, so that each of the layout circuits is connected in series with at least two light-emitting elements; and A multi-channel controller is electrically coupled to the plurality of layout circuits, so that the multi-channel controller can independently control at least two light-emitting elements electrically coupled to each layout circuit to emit a detection light.