Light scanner and imaging device

Abstract

The invention discloses a light scanner and a shooting device. The light scanner comprises a reflection assembly, a driving coil and / or a sensing coil are / is arranged in the reflection assembly, the target surface of the reflection assembly is used for reflecting light, the driving coil is used for driving the reflection assembly to rotate, and the sensing coil is used for obtaining the angular velocity when the reflection assembly rotates; and the reflecting assembly is arranged on the scanner base. In this way, the integration degree of the light scanner is improved, and the miniaturization degree of equipment is improved.

Description

Technical Field

[0001] This application relates to the field of light scanning, and particularly to a light scanner and a photographing device. Background Art

[0002] In the field of light scanning imaging, the light generated by a light source irradiates on a light scanner, and after being reflected by the light scanner, finally irradiates on a target object. The camera collects the light reflected by the target object to achieve the scanning imaging of the target object. Therefore, in a light scanner, there are usually a reflecting mirror, a driving component for driving the reflecting mirror to rotate, and a detecting component for detecting the angle or position of the reflecting mirror. In order to make the imaging device have better universality, how to effectively integrate the imaging device has become a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0003] The main purpose of this application is to provide a light scanner and a photographing device, which can improve the integration degree of the light scanner and the miniaturization degree of the device.

[0004] In a first aspect, this application provides a light scanner. The light scanner includes a reflection assembly, in which a driving coil and / or a sensing coil are / is arranged. The target surface of the reflection assembly is used for reflecting light. The driving coil is used for driving the reflection assembly to rotate, and the sensing coil is used for obtaining the angular velocity when the reflection assembly rotates; a scanner base, and the reflection assembly is arranged on the scanner base.

[0005] In the technical solution of the embodiment of this application, by arranging the driving coil and / or the sensing coil in the reflection assembly, the functions of driving the rotation of the reflection assembly and / or detecting the angular velocity of the rotation of the reflection assembly are integrated in the reflection assembly. The angular velocity when the reflection assembly rotates can be used to characterize the angular position of the reflection assembly when rotating, so as to realize the position detection function of the reflection assembly, realize the miniaturization of the light scanner, improve the integration degree of the light scanner, facilitate the miniaturization of the imaging device, and improve the adaptability of the imaging device to the environment.

[0006] In some embodiments, the scanner base includes a first base. The light scanner further includes a slewing mechanism, and the slewing mechanism includes a first slewing mechanism. The first slewing mechanism is connected between the reflection assembly and the first base, and the first slewing mechanism is coaxial with the first rotation axis of the reflection assembly. After the scanning is completed, the first slewing mechanism uses elastic deformation to control the reflection assembly to rotate around the first rotation axis to the first initial position.

[0007] In some embodiments, the driving coil and / or the sensing coil is / are planar spiral coils.

[0008] In some embodiments, the plane where the driving coil and / or the sensing coil is / are located is parallel to the target surface.

[0009] In some embodiments, the geometric center of the driving coil and / or the sensing coil is located on the first rotation axis.

[0010] In some embodiments, the geometric center of the driving coil and / or the sensing coil coincides with the geometric center of the orthographic projection of the target surface on the target surface.

[0011] In some embodiments, the scanner base further includes a second base, the slewing mechanism includes a second slewing mechanism, the second slewing mechanism is disposed between the first base and the second base, and the second slewing mechanism is coaxial with the second rotation axis of the first base. After the scanning is completed, the second slewing mechanism uses elastic deformation to control the first base to rotate around the second rotation axis to the second initial position, and the first rotation axis and the second rotation axis are not parallel.

[0012] In some embodiments, a wire is disposed in the slewing mechanism, and the wire connects the driving coil and / or the sensing coil in the reflection component to an external controller.

[0013] In a second aspect, the present application provides a photographing device. The photographing device includes a light scanner, the light scanner includes the light scanner as in the first aspect; a light source for emitting light; a controller, the controller is connected to the light scanner and the light source, the controller controls the light source to emit light to the light scanner, and uses the light scanner to reflect the light to implement scanning and photographing of a target object.

[0014] In some embodiments, the photographing device further includes a first imaging unit and a second imaging unit. The first imaging unit and the second imaging unit are respectively disposed on opposite sides of the light scanner, and the first imaging unit and the second imaging unit are infrared cameras.

[0015] It can be understood that the beneficial effects of the second aspect above can be referred to the relevant descriptions in the first aspect above, and will not be repeated here.

[0016] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specific embodiments of the present application are given. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, where:

[0018] Figure 1 It is a schematic structural diagram of the first embodiment of the light scanner of the present application;

[0019] Figure 2 It is a schematic structural diagram of the second embodiment of the light scanner of the present application;

[0020] Figure 3 It is a schematic structural diagram of the third embodiment of the light scanner of the present application;

[0021] Figure 4 It is a schematic structural diagram of an embodiment of the drive coil or sensing coil of the present application;

[0022] Figure 5 It is a schematic structural diagram of the fourth embodiment of the light scanner of the present application;

[0023] Figure 6 It is a schematic structural diagram of the first embodiment of the photographing device of the present application;

[0024] Figure 7 It is a schematic structural diagram of the second embodiment of the photographing device of the present application;

[0025] Figure 8 It is a schematic structural diagram of the third embodiment of the photographing device of the present application. Detailed implementation manners

[0026] Hereinafter, embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0028] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is more than two, unless otherwise specifically and clearly defined.

[0030] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0031] In the description of the embodiments of the present application, the term "a plurality of" refers to more than two (including two). Similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of sheets" refers to more than two sheets (including two sheets).

[0032] In the description of the embodiments of the present application, technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the embodiments of the present application.

[0033] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may also be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0034] In a scanning imaging device, it usually includes a light source, a projection unit, and an imaging unit. The projection unit includes a light scanner for reflecting and deflecting the light emitted by the light source to achieve irradiation of more areas. The imaging unit collects the reflected light and records the light intensity and phase information of each pixel point, thereby obtaining the shape information of the target object.

[0035] In a common light scanner, a driving unit is usually used to rotate the mirror in the light scanner. The driving unit can be an electromagnetic driving unit, and its rotation mode can be divided into two types: moving coil type and moving magnet type. In the moving coil type, the electromagnetic driving coil is fixed on a rotatable shaft and placed in the magnetic field formed by a fixed magnet. When an electric current passes through the coil, the coil is subjected to a force in the magnetic field, realizing the rotation of the shaft. In the moving magnet type, the magnet is fixed on the shaft and placed in the magnetic field formed by the energized coil. Since the coil is fixed, the magnet drives the shaft to rotate.

[0036] A position detection unit is usually also provided in the light scanner to detect the angular position of the deflection of the mirror. The controller in the scanning imaging device controls the light emission of the light source according to the obtained angular position.

[0037] The following are several common position detection units.

[0038] Optical detection unit. This detection unit uses the optical principle. By emitting light onto the object to be measured and then calculating the deflection angle of the object to be measured according to the angular change of the reflected light or transmitted light. Specifically, it can include a reflective optical detection unit or a transmissive optical detection unit. The reflective type emits light from the light source onto the object to be measured and measures the deflection angle of the object to be measured through the reflected light. This method has high precision but requires a large installation space. The transmissive type emits light from the light source onto the object to be measured and measures the deflection angle of the object to be measured through the light transmitted through the object to be measured. This method requires a small installation space but has low precision.

[0039] Capacitive detection unit. This detection unit uses a capacitive sensor to measure the change in capacitance value to calculate the deflection angle of the object to be measured. Specifically, it can include a parallel plate capacitive sensor or a rotary capacitive sensor. The parallel plate capacitive sensor places two parallel metal plates on both sides of the object to be measured and calculates the deflection angle by measuring the change in capacitance value between the two metal plates. This method requires a small installation space and has low precision. The rotary capacitive sensor places a metal disc on one side of the object to be measured and changes the capacitance value by rotating the metal disc, thereby calculating the deflection angle. This method requires a large installation space and has high precision.

[0040] Laser interferometric detection unit. This detection unit uses a laser interferometer to measure the reflection and interference of a laser beam on the object to be measured, and thus calculates the deflection angle. Specifically, it may include a Michelson interferometer or a Fizeau interferometer. The Michelson interferometer divides the laser beam into two paths, which are respectively irradiated on both sides of the object to be measured. Interference is carried out through the reflected light, and the deflection angle of the object to be measured is measured. This method has a relatively large setting space and high precision. The Fizeau interferometer irradiates the laser beam on the object to be measured, and interference is carried out through the reflected light to measure the deflection angle of the object to be measured. This method has a relatively small setting space and low precision.

[0041] Piezoelectric detection unit. This detection unit realizes the angle measurement of the object to be measured through the piezoelectric effect. The piezoelectric effect means that when some dielectric materials are subjected to external forces, charges will be generated on the surface, realizing the conversion from non-electrical parameters to electrical parameters.

[0042] Both the drive unit and the detection unit in the above-mentioned light scanner need to occupy a certain setting space in the light scanner. In order to achieve better device integration, the present application proposes the light scanner described in the following embodiments.

[0043] Refer to Figure 1 , Figure 1 which is a schematic structural diagram of the first embodiment of the light scanner of the present application.

[0044] This light scanner includes a reflection component 10 and a scanner base 20. A drive coil or a sensing coil is arranged inside the reflection component 10. The target surface of the reflection component 10 is used to reflect light. The drive coil is used to drive the reflection component 10 to rotate, and the sensing coil is used to obtain the angular velocity when the reflection component 10 rotates. The reflection component 10 is arranged on the scanner base 20.

[0045] In one embodiment, the reflection component 10 includes a reflecting mirror. The reflecting surface of the reflecting mirror serves as the target surface of the reflection component to reflect light. The drive coil or the sensing coil is arranged in the reflecting mirror. Specifically, it can be arranged in the reflecting mirror by etching.

[0046] The drive coil is arranged in the reflecting mirror, avoiding occupying space positions in the light scanner and facilitating the integration of the light scanner.

[0047] The sensing coil is disposed in the mirror. By detecting the electrical signal generated when the mirror rotates, this electrical signal is related to the tangential velocity of the coil. Therefore, it can be used to determine the tangential velocity of the sensing coil, and thus the tangential velocity of the mirror can be further determined. To a certain extent, the tangential velocity of the mirror can characterize the angular position of the mirror. Therefore, it is also possible to control the timing of the light source emitting light based on the tangential velocity of the mirror. Compared with common optical detection, capacitive detection, etc., this embodiment ultimately does not measure the deflection angle of the mirror, but obtains the tangential velocity during the rotation of the mirror and realizes the emission control of the light source based on the tangential velocity.

[0048] Since the tangential velocity of the mirror is obtained by using the sensing coil to achieve light source control, and the sensing coil can be disposed in the mirror, the spatial position for deploying the position detection unit in the light scanner is saved, achieving a smaller space occupation, which is beneficial to the integration of the light scanner.

[0049] When the tangential velocity of the mirror is too fast, it means that the rotation of the mirror is too fast at this time, which will cause a trailing phenomenon in imaging. The trailing phenomenon refers to the phenomenon that the image appears abnormal extension, blur or repetition, etc. The trailing phenomenon will cause image distortion and is not conducive to subsequent scanning imaging. Therefore, when performing the emission control of the light source, when the tangential velocity of the mirror is less than the preset value, the light source will be controlled to emit light. When the tangential velocity of the mirror is greater than the preset value, the light source is controlled not to emit light to avoid the trailing phenomenon. When the mirror is operating stably, in order to further ensure the accuracy of the light emission control and avoid trailing, on the basis that the tangential velocity satisfies being less than the preset value, it is further selected that the first derivative of the tangential velocity is negative before controlling the light source to emit light.

[0050] Alternatively, in an embodiment, according to the time period when the mirror operates stably, a corresponding emission time for the light source to emit light is set, and the light source is controlled to emit light at a fixed emission time.

[0051] In this embodiment, the driving coil and / or the sensing coil is disposed in the reflection component, and the function of rotating the reflection component and / or detecting the rotational angular velocity of the reflection component is integrated into the reflection component. The angular velocity when the reflection component rotates can be used to characterize the angular position of the reflection component during rotation, thereby realizing the position detection function of the reflection component, achieving the miniaturization of the light scanner, improving the integration degree of the light scanner, being beneficial to realizing the miniaturization of the imaging device, and improving the adaptability of the imaging device to the environment.

[0052] Refer to Figure 2 , Figure 2 which is a schematic structural diagram of the second embodiment of the light scanner of the present application.

[0053] The light scanner includes a reflection component 10 and a scanner base 20. A drive coil and a sensing coil are arranged inside the reflection component 10. The target surface of the reflection component 10 is used to reflect light. The drive coil is used to drive the reflection component 10 to rotate, and the sensing coil is used to obtain the angular velocity when the reflection component 10 rotates. The reflection component 10 is arranged on the scanner base 20.

[0054] In one embodiment, the reflection component 10 includes a reflecting mirror. The reflecting surface of the reflecting mirror serves as the target surface for reflecting light. The drive coil and the sensing coil are arranged in the reflecting mirror. Specifically, they can be arranged in the reflecting mirror by etching.

[0055] For the relevant settings, refer to the description in the above embodiment and will not be elaborated here.

[0056] Refer to Figure 3 , Figure 3 This is a schematic structural diagram of the third embodiment of the light scanner of the present application.

[0057] In this embodiment, the scanner base includes a first base 21. The light scanner further includes a slewing mechanism. The slewing mechanism includes a first slewing mechanism 31. The first slewing mechanism 31 is connected between the reflection component 10 and the first base 21, and the first slewing mechanism 31 is coaxial with the first rotation axis A of the reflection component 10. After the scanning is completed, the first slewing mechanism 31 uses elastic deformation to control the reflection component 10 to rotate around the first rotation axis A to the first initial position.

[0058] The first slewing mechanism 31 in this embodiment may include an elastic beam. The elastic beam is a torsion beam with elasticity. It can provide axial support for the reflection component 10 during rotation and make it return to the initial position after rotation, facilitating the subsequent scanning and rotation process. The integrated slewing mechanism with torsion and elastic recovery not only meets the rotation requirements of the reflection component of the light scanner but also improves the integration of the light scanner.

[0059] In this embodiment, by setting an integrated elastic slewing mechanism that is coaxial with the first rotation axis of the reflection component, it is avoided that the first rotation axis of the reflection component generates an offset during rotation. At the same time, after the scanning is completed, the elastic characteristics can be used to make the reflection component return to the initial position, facilitating the subsequent rotation and scanning process.

[0060] In some embodiments, the drive coil and / or the sensing coil is a planar spiral coil.

[0061] A planar spiral coil is a coil that unfolds in a spiral shape on a plane. The unfolded spiral shape can include a circular shape, a square shape, or other polygonal shapes. The coil path of the planar spiral coil starts from the center point and expands outward turn by turn, and the distance between adjacent turns remains fixed or increases regularly.

[0062] The planar spiral coil can maximize the use of planar space, is suitable for miniaturized devices, and improves the integration of the devices. Moreover, the spiral structure of the spiral coil can provide a uniform magnetic field distribution, improve the energy conversion efficiency, and make the energy consumption of the reflection component lower during rotational motion. And the spiral-shaped coil belongs to a conventional coil and can be mass-produced relatively quickly, reducing the manufacturing difficulty of the product.

[0063] The drive coil and / or the sensing coil are arranged in the reflection component in the form of a planar spiral coil, maximizing the use of the planar space inside the reflection component, improving the device integration, and the spiral structure improves the energy conversion efficiency and reduces the energy consumption when driving the reflection component to rotate.

[0064] In some embodiments, the plane where the drive coil and / or the sensing coil are located is parallel to the target surface.

[0065] In some embodiments, the geometric center of the drive coil and / or the sensing coil is located on the first rotation axis.

[0066] In some embodiments, the geometric center of the drive coil and / or the sensing coil is such that the orthographic projection of the geometric center on the target surface coincides with the geometric center of the target surface.

[0067] The geometric center described in this embodiment includes the geometric center point and a moderately extended geometric center region. When the position difference between the orthographic projection of the geometric center point of the coil on the target surface and the geometric center point of the target surface is within a preset threshold, it is also considered that their geometric centers coincide.

[0068] Refer to Figure 4 , Figure 4 is a schematic structural diagram of an embodiment of the drive coil or the sensing coil of the present application. In the figure, the drive coil or the sensing coil is arranged in the reflection component 10 in the form of a planar spiral coil. The plane where the drive coil or the sensing coil is located is parallel to the target surface of the reflection component 10, and the orthographic projection of the geometric center of the drive coil or the sensing coil on the target surface coincides with the geometric center of the target surface of the reflection component 10.

[0069] Refer to Figure 5 , Figure 5 is a schematic structural diagram of the fourth embodiment of the light scanner of the present application.

[0070] In this embodiment, the scanner base further includes a second base 22, and the slewing mechanism includes a second slewing mechanism 32. The second slewing mechanism 32 is disposed between the first base 21 and the second base 22, and the second slewing mechanism 32 is coaxial with the second rotation axis B of the first base 21. After the scanning is completed, the second slewing mechanism 32 uses elastic deformation to control the first base 21 to rotate around the second rotation axis B to the second initial position, and the first rotation axis A and the second rotation axis B are not parallel.

[0071] The first slewing mechanism 31 provides axial support for the reflection assembly 10 to rotate around the first rotation axis A and enables it to return to the first initial position after rotation. The second slewing mechanism 32 provides axial support for the first base 21 to rotate around the second rotation axis B and enables it to return to the second initial position after rotation. By providing the first slewing mechanism 31 and the second slewing mechanism 32, and the first rotation axis A and the second rotation axis B are not parallel, the reflection assembly can be deflected in two directions. Compared with the deflection reflection in a single direction, the reflected light can be irradiated to more areas, achieving a better scanning effect.

[0072] The first rotation axis A and the second rotation axis B can be perpendicular (as Figure 5 shown), or not perpendicular. The angle therebetween is not limited herein, as long as it is ensured that the first rotation axis A and the second rotation axis B are not parallel, two-dimensional rotation of the reflecting mirror can be achieved.

[0073] In some embodiments, a wire is provided in the slewing mechanism, and the wire connects the driving coil and / or the sensing coil in the reflection assembly 10 to an external controller.

[0074] The driving coil is connected to the external controller through the wire, and the rotation of the reflection assembly is realized by receiving the current input from the outside. The sensing coil is connected to the external controller through the wire, and the electrical signal generated when the reflection assembly rotates is transmitted to the external controller, so that the external controller determines the tangential speed of the reflection assembly according to the electrical signal, thereby controlling the light source to emit light.

[0075] Refer to Figure 6 , Figure 6 which is a schematic structural diagram of the first embodiment of the photographing device of the present application.

[0076] The photographing device includes a light scanner 100, a light source 200, and a controller 300. The light scanner 100 includes the light scanner 100 provided by any one of the above embodiments and possible combinations. The light source 200 is used to emit light. The controller 300 is connected to the light scanner 100 and the light source 200. The controller 300 controls the light source 200 to emit light to the light scanner 100, so that the light scanner 100 reflects the light to realize the scanning and photographing of the target object.

[0077] Reference Figure 7 , Figure 7 is a schematic structural diagram of the second embodiment of the photographing device of the present application.

[0078] The photographing device further includes a first imaging unit 400 and a second imaging unit 500. The first imaging unit 400 and the second imaging unit 500 are respectively disposed on opposite sides of the light scanner 100. (Only the communication connection relationship is shown in the figure, and their positional relationship is not shown). The first imaging unit and the second imaging unit are infrared cameras.

[0079] Reference Figure 8 , Figure 8 is a schematic structural diagram of the third embodiment of the photographing device of the present application.

[0080] The photographing device further includes a third imaging unit 600, and the third imaging unit is a color camera.

[0081] In the above embodiments, after the controller 300 obtains the scanned image, it can optimize the scanned image through an open-loop mode or a closed-loop mode. In the open-loop mode, the controller 300 transmits the scanned image to the host computer, and the host computer performs image screening to optimize the timing of the light source emitting light. Thus, image optimization is achieved. In the closed-loop mode, the controller 300 screens the tangential velocity corresponding to the electrical signal fed back by the sensing coil to optimize the timing of the light source emitting light. Thus, image optimization is achieved.

[0082] In summary, in the present application, the driving coil and / or the sensing coil are disposed in the reflection component, and the functions of rotating the reflection component and / or detecting the rotational angular velocity of the reflection component are integrated into the reflection component. The angular velocity when the reflection component rotates can be used to characterize the angular position of the reflection component during rotation, thereby realizing the position detection function of the reflection component, realizing the miniaturization of the light scanner, improving the integration degree of the light scanner, facilitating the miniaturization of the imaging device, and improving the adaptability of the imaging device to the environment.

[0083] In several embodiments provided by the present application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0084] The unit described as a separation component may or may not be physically separated. The component displayed as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0085] In addition, each functional unit in various embodiments of the present application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0086] If the integrated unit in the above-mentioned other embodiments is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs and other various media that can store program codes.

[0087] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A light scanner, characterized in that, The light scanner includes: A reflection component, in which a driving coil and / or a sensing coil are arranged. The target surface of the reflection component is used for reflecting light. The driving coil is used to drive the reflection component to rotate, and the sensing coil is used to obtain the angular velocity when the reflection component rotates; A scanner base, on which the reflection component is arranged.

2. The light scanner according to claim 1, wherein The scanner base includes a first base. The light scanner further includes a slewing mechanism, and the slewing mechanism includes a first slewing mechanism. The first slewing mechanism is connected between the reflection component and the first base, and the first slewing mechanism is coaxial with the first rotation axis of the reflection component. After the scanning is completed, the first slewing mechanism uses elastic deformation to control the reflection component to rotate around the first rotation axis to a first initial position.

3. The light scanner according to claim 2, characterized in that, The driving coil and / or the sensing coil is a planar spiral coil.

4. The light scanner according to claim 3, characterized in that, The plane where the driving coil and / or the sensing coil is located is parallel to the target surface.

5. The light scanner according to claim 2, wherein The geometric center of the driving coil and / or the sensing coil is located on the first rotation axis.

6. The light scanner according to claim 2, characterized in that, The geometric center of the driving coil and / or the sensing coil coincides with the geometric center of the orthographic projection of the target surface on the target surface.

7. The light scanner according to claim 2, wherein The scanner base further includes a second base. The slewing mechanism includes a second slewing mechanism. The second slewing mechanism is arranged between the first base and the second base, and the second slewing mechanism is coaxial with the second rotation axis of the first base. After the scanning is completed, the second slewing mechanism uses elastic deformation to control the first base to rotate around the second rotation axis to a second initial position, and the first rotation axis and the second rotation axis are not parallel.

8. The light scanner according to any one of claims 2-7, characterized in that, A wire is arranged in the slewing mechanism, and the wire connects the driving coil and / or the sensing coil in the reflection component to an external controller.

9. A photographing device, characterized in that, The photographing device includes: A light scanner, which includes the light scanner according to any one of claims 1-8; A light source for emitting light; A controller, which is connected to the light scanner and the light source. The controller controls the light source to emit light to the light scanner, so that the light scanner reflects the light to realize the scanning and photographing of the target object.

10. The photographing apparatus according to claim 9, wherein The photographing device further includes a first imaging unit and a second imaging unit. The first imaging unit and the second imaging unit are respectively arranged on opposite sides of the light scanner, and the first imaging unit and the second imaging unit are infrared cameras.

Images