Positioning apparatus and electronic device
Patent Information
- Application Number
- PCT/CN2025/141992
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-11
- Filing Date
- 2025-12-12
- Publication Date
- 2026-09-17
Smart Images
Figure CN2025141992_17092026_PF_FP_ABST
Abstract
Description
Positioning devices and electronic equipment
[0001] This invention claims priority to Chinese Patent Application No. 202520426439.4, filed with the State Intellectual Property Office of China on March 11, 2025, entitled “Positioning Device and Electronic Equipment”, the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of electronic product technology, and more specifically to a positioning device and an electronic device. Background Technology
[0003] Positioning devices such as lidar can scan objects by emitting a beam of light and calculate the object's position coordinates. Lidar can be applied to displays to scan fingers or touch tools on touchscreens.
[0004] LiDAR comprises numerous optical and electronic components, such as drive components, light sources, and reflectors. The design and assembly tolerances of these components can affect the beam propagation path, resulting in a non-planar scanning surface of the LiDAR. Consequently, the scanning surface is not parallel to the display surface of the monitor, leading to inconsistent touch effects at different locations on the monitor.
[0005] Application content
[0006] In view of this, this application provides a positioning device and an electronic device to solve the problem that the scanning surface of the positioning device in the prior art is not planar.
[0007] This causes the scanning surface to be non-parallel to the display surface of the monitor.
[0008] This application provides a positioning device, comprising: a driving component, a light emitting assembly, a first adjustment mechanism, a first reflector, and a second adjustment mechanism. The light emitting assembly emits a light beam. The first adjustment mechanism is connected to the light emitting assembly and adjusts the angle of the light emitting assembly. The first reflector reflects the light beam emitted by the light emitting assembly. The second adjustment mechanism is connected to the driving component and the first reflector, and adjusts the angle of the first reflector to adjust the angle between the light beam reflected by the first reflector and the centerline of the driving component.
[0009] The positioning device provided in this application, through the cooperation of a first adjustment mechanism and a second adjustment mechanism, can adjust the angle of the light beam emitted by the light emitting component onto the first reflector, as well as the angle of the light beam reflected from the first reflector onto the object. This ensures that the light beam reflected from the first reflector onto the object is parallel to the display surface of the screen, guaranteeing consistent touch performance across all positions on the screen. Furthermore, both the first and second adjustment mechanisms can adjust the angle of the light beam reflected from the first reflector onto the object with relatively small adjustments, without causing significant changes to the internal structure of the positioning device. This helps ensure structural consistency and improves adjustment accuracy.
[0010] In one possible implementation, the driving component includes a rotating part, and the second adjustment mechanism is connected to the rotating part. The rotating part can drive the second adjustment mechanism and the first reflector to rotate synchronously, so as to reflect the light beam within a set angle range and scan the object.
[0011] The rotating part of the drive component can rotate during operation, and the aforementioned center line of the drive component is the rotation center line of the rotating part.
[0012] In one possible implementation, the light emitting assembly includes a light source and a second reflector, the second reflector reflecting the light beam emitted by the light source back to the first reflector. The second reflector is connected to the first adjustment mechanism. The light emitted by the light source can be reflected twice, sequentially by the second and first reflectors. Both reflections can change the propagation path of the light beam, which facilitates flexible arrangement of the light source.
[0013] In one possible implementation, the first reflector includes a first reflective surface, and the second adjustment mechanism includes a first mounting surface. The first reflector is connected to the first mounting surface, and the angle between the first reflective surface and the first mounting surface is 45°. After the second adjustment mechanism is installed on the driving component, the first mounting surface can be perpendicular to the centerline of the driving component. In the direction extending from the centerline, the light emitting component is positioned opposite the first reflector. By adjusting the first adjustment mechanism, the light beam emitted by the light emitting component towards the first reflector can be parallel to or nearly parallel to the centerline of the driving component. Since the angle between the first reflective surface and the first mounting surface is 45°, after reflection by the first reflective surface of the first reflector, the light beam reflected to the object can be perpendicular to or nearly perpendicular to the centerline. By further adjusting the second adjustment mechanism, it can be ensured that the light beam reflected from the first reflective film to the object is perpendicular to the centerline, i.e., the light beam is parallel to the display surface of the monitor.
[0014] In one possible implementation, the second reflector includes a second reflecting surface, the first adjustment mechanism includes a second mounting surface, the second reflector is connected to the second mounting surface, and the angle between the second reflecting surface and the second mounting surface is 45°. During assembly within the positioning device, the first adjustment mechanism can be configured such that the second mounting surface is parallel to the centerline of the driving component. When the second reflector is mounted onto the first adjustment mechanism, the angle between the second reflecting surface and the second mounting surface can be 45°, i.e., the angle between the second reflecting surface and the centerline of the driving component is 45°. The second reflecting surface is located on the side of the second reflector facing the driving component; that is, the first and second reflecting surfaces are positioned opposite each other in the direction extending from the centerline of the driving component. The light beam emitted by the light source can be perpendicular or nearly perpendicular to the centerline of the driving component. After being reflected by the second reflecting surface of the second reflector, the light beam can illuminate the first reflecting surface of the first reflector in a direction parallel or nearly parallel to the centerline of the driving component. The angle of the light beam reflected from the second reflecting surface to the first reflecting surface can be adjusted by adjusting the first adjustment mechanism. Then, the light beam can be further reflected to the object through the first reflecting surface of the first reflecting mirror. The angle of the light beam reflected from the first reflecting surface to the object can be adjusted by adjusting the second adjustment mechanism so that the light beam is parallel to the display surface of the display.
[0015] In one possible implementation, the light emitting assembly further includes a first collimating lens disposed between the light source and the second reflecting mirror. Alternatively, the first collimating lens may be disposed between the first reflecting mirror and the second reflecting mirror. The first collimating lens can collimate the light beam emitted by the light source into a parallel beam. A parallel beam has a small divergence angle and concentrated energy, enabling more accurate target detection and reducing errors.
[0016] In one possible implementation, the light emitting component includes a light source connected to the first adjustment mechanism. The first adjustment mechanism can adjust the orientation of the light source, thereby adjusting the angle of the emitted light beam. In this embodiment, the light source can be positioned on one side of the driving component along its centerline extension direction, so that the emitted light beam is parallel to or nearly parallel to the centerline of the driving component, thus simplifying the structure and facilitating the arrangement of the light source.
[0017] In one possible implementation, the light emitting assembly further includes a connecting frame and a second collimating lens. Both the light source and the second collimating lens are connected to the connecting frame, and either the light source or the connecting frame is connected to the first adjustment mechanism. The first adjustment mechanism enables synchronous adjustment of the light source and the second collimating lens, ensuring that the light beam emitted by the light source is collimated into a parallel beam by the second collimating lens at any angle.
[0018] In one possible implementation, the positioning device further includes a light receiving component for receiving a light beam that is irradiated onto the object by the light emitting component through the first reflector and reflected by the object.
[0019] In one possible implementation, the light receiving assembly includes a third reflector and a light receiver, and the driving component includes a rotating part. The third reflector is connected to the rotating part and is used to reflect the light beam reflected by the object to the light receiver. The third reflector can change the propagation path of the light beam, thereby facilitating the placement of the light receiver in a suitable location.
[0020] In one possible implementation, the driving component further includes a stationary part rotatably connected to the rotating part. The stationary part has a central hole, and the third reflector and the light receiver are located on opposite sides of the central hole along the axial direction of the driving component. The third reflector reflects the light beam to the light receiver through the central hole. The rotating part may have a first through hole and a second through hole, the first through hole extending radially along the rotating part and the second through hole extending axially along the rotating part, and the first and second through holes communicating with each other. The third reflector may be located at the position where the first and second through holes communicate. The stationary part may have a central hole extending axially along the stationary part and communicating axially with the second through hole on the rotating part. The light receiver may be mounted on a bracket, and the third reflector and the light receiver may be located on opposite sides of the stationary part along the axial direction. The light beam reflected by the object can pass through the first through hole to illuminate the first reflector, and the light beam reflected by the first reflector can pass sequentially through the second through hole and the positioning hole before being received by the light receiver.
[0021] In one possible implementation, the positioning device further includes a fourth reflecting mirror, which is located on the same side of the rotating part as the third reflecting mirror. The fourth reflecting mirror is used to reflect the light beam reflected by the third reflecting mirror to the light receiver. The first reflecting mirror, the third reflecting mirror, the fourth reflecting mirror, and the light receiver are all located on the same side of the stationary part, with the first reflecting mirror positioned between the third reflecting mirror and the stationary part. Since the fourth reflecting mirror and the third reflecting mirror are located on the same side of the rotating part, the light beam reflected back from the object can be reflected sequentially by the third and fourth reflecting mirrors to change its propagation angle, and ultimately be received by the light receiver. Therefore, the cooperation of the third and fourth reflecting mirrors allows for a more flexible placement of the light receiver.
[0022] In one possible implementation, the positioning device further includes a third collimating lens, which is disposed between the fourth reflecting mirror and the light receiver. Alternatively, the third collimating lens is disposed between the third reflecting mirror and the fourth reflecting mirror. Both of these placements of the third collimating lens can collimate the light beam reflected back from the object, improving the receiving accuracy of the light receiver.
[0023] In one possible implementation, the driving component further includes a stationary portion rotatably connected to the rotating portion. The stationary portion has a central hole, and the light emitting component and the first reflector are located on opposite sides of the central hole along the axial direction of the driving component. The light beam emitted by the light emitting component illuminates the first reflector through the central hole. The first reflector is disposed on the rotating portion via a second adjustment mechanism. The rotating portion may have a third through hole and a fourth through hole, the third through hole extending radially along the rotating portion and the fourth through hole extending axially along the rotating portion, and the third and fourth through holes communicating with each other. The stationary portion has a central hole extending axially along the stationary portion and communicating with the fourth through hole. The light emitting component and the first reflector are located on opposite sides of the central hole along the axial direction of the driving component. The light beam emitted by the light emitting component can sequentially pass through the central hole and the fourth through hole to illuminate the first reflector, and the first reflector can reflect the light beam to an object through the third through hole.
[0024] In one possible implementation, the second adjustment mechanism includes a mounting plate, a mounting bracket, screws, and a compression washer. The mounting plate is fixed to the mounting bracket by the screws and clamps the compression washer between the mounting plate and the mounting bracket. The first reflector is connected to the mounting plate. Along the axial direction of the driving component, the compression washer can deform under the pressure of the mounting plate and the mounting bracket. The amount of deformation of the compression washer affects the tilt of the mounting plate relative to the mounting bracket. For example, by appropriately adjusting the tightening force of some screws, the degree of deformation of the compression washer at the corresponding screw can be changed, thereby adjusting the tilt of the mounting plate at the corresponding screw position, and thus adjusting the tilt of the first reflector, thereby adjusting the direction of beam propagation so that the beam reflected by the first reflector to the object is parallel to the display surface of the monitor.
[0025] Secondly, this application also provides an electronic device, comprising a housing, a display, and a positioning device provided in the first aspect of this application. The display is disposed within the housing, and the positioning device is disposed within the housing. The display includes a display surface, and the light beam emitted by the positioning device is parallel to the display surface. The electronic device including the positioning device provided in the first aspect of this application has similar technical effects to the aforementioned positioning device, and will not be described in detail here.
[0026] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 is a schematic diagram of the electronic device provided in an embodiment of this application;
[0029] Figure 2 is a schematic diagram of the beam emitted by the positioning device being parallel to the display surface of the monitor.
[0030] Figure 3 is a schematic diagram showing the angle between the beam emitted by the positioning device and the display surface of the monitor.
[0031] Figure 4 is a schematic diagram of the structure of a positioning device provided in one embodiment of this application;
[0032] Figure 5 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0033] Figure 6 is a schematic diagram of the structure of the second adjustment mechanism provided in one embodiment of this application;
[0034] Figure 7 is a schematic diagram of the structure of the second adjustment mechanism provided in another embodiment of this application;
[0035] Figure 8 is a top view of a second adjustment mechanism provided in one embodiment of this application;
[0036] Figure 9 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0037] Figure 10 is a partial schematic diagram of a positioning device provided in an embodiment of this application;
[0038] Figure 11 is a partial schematic diagram of a positioning device provided in another embodiment of this application;
[0039] Figure 12 is a partial schematic diagram of a positioning device provided in another embodiment of this application;
[0040] Figure 13 is a partial schematic diagram of a positioning device provided in another embodiment of this application;
[0041] Figure 14 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0042] Figure 15 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0043] Figure 16 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0044] Figure 17 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0045] Figure 18 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0046] Figure 19 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0047] Figure 20 is a schematic diagram of the positioning device provided in another embodiment of this application;
[0048] Figure 21 is a schematic diagram of the positioning device provided in another embodiment of this application.
[0049] Reference numerals: 100-Display; 110-Display surface; 200-Positioning device; 210-Light source; 220-First reflector; 230-Second reflector; 240-Third reflector; 250-Driving component; 260-Light receiving assembly; 300-Object; 1-Driving component; 11-Rotating part; 111-First through hole; 112-Second through hole; 113-Third through hole; 114-Fourth through hole; 12-Stationary part; 121-Center hole; 1a-Center line; 2-Light emitting assembly; 21-Light source; 22-Second reflector; 23-First collimating lens; 24-Second collimating lens; 25-Connecting frame; 221-Second reflecting surface; 3-First adjustment mechanism; 31-Second mounting surface; 4-First reflector; 41-First reflecting surface; 5-Second adjustment mechanism; 51-Mounting plate; 511-First mounting surface; 52-Mounting bracket; 53-Adjustment assembly; 531-Screw; 532-Compression component; 6-Light receiving assembly; 61-Third reflector; 62-Light receiver; 63-Fourth reflector; 7-Bracket; 8-Third collimating lens; 9-Light guide component. Detailed Implementation
[0050] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0051] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0052] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0053] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0054] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0055] This application provides a positioning device that can detect the position of a measured object. This positioning device can be applied to electronic devices with touch functionality, such as touchscreen displays and smart screens, which have a display surface that can be touched by a finger or stylus. When a finger or stylus touches the display surface, the positioning device can detect the position of the finger or stylus to determine the corresponding touch event. For example, the touch event could be a control trigger event or a handwriting display event.
[0056] For ease of explanation, we will take the application of positioning devices on smart screens as an example.
[0057] The smart screen can determine the touch position of a stylus or finger using a positioning device. Optionally, the positioning device is installed on the smart screen. Optionally, the positioning device can be pre-configured in the smart screen, or the user can choose to configure the positioning device separately. For example, the positioning device can be pre-embedded in the smart screen and integrated with the existing modules in the smart screen. For example, the positioning device can be integrated with the smart screen's camera or microphone modules into a single module. Alternatively, the positioning device can be a separate accessory, which the user can choose to install or not. Optionally, the positioning device can be installed in various ways on the smart screen, such as using clips, magnetic attachment, or lifting mechanism.
[0058] In some examples, the positioning device can be a positioning device based on technologies such as direct time-of-flight (DTOF) sensors, indirect time-of-flight (ITOF) sensors, binocular sensors, and structured light sensors. Optionally, the DTOF sensor can be, for example, a rotating single-wire sensor. The above-mentioned types of sensors can be used to construct radar positioning devices.
[0059] The working principle of the DTOF sensor is based on time of flight (TOF) technology. It calculates the distance from the object to the sensor by measuring the time difference between the emission of a light pulse (such as laser or infrared light) from the sensor and its reflection back from the surface of the object.
[0060] The working principle of an ITOF sensor is similar to that of a DTOF sensor, both being based on TOF technology. However, an ITOF sensor calculates distance by measuring the phase difference of light pulses, rather than directly measuring the round-trip time.
[0061] Binocular sensors mimic the human visual system, using two cameras to capture images of the same scene from different perspectives, thereby calculating the depth information of objects in the scene.
[0062] Structured light sensors acquire depth information by projecting a known light pattern onto the surface of an object and analyzing the deformation of that pattern.
[0063] In some embodiments, the positioning device can determine the touch position of a touch tool or finger on the smart screen based on light reflection information. Optionally, the reflectivity of the target object, such as the touch tool or finger, is greater than or equal to a preset threshold, for example, 40%. Thus, when the positioning device emits a laser in a direction parallel or approximately parallel to the display screen of the smart screen, the laser can be reflected by the touch tool or finger performing a touch operation on the smart screen. Then, as shown in FIG1, the positioning device 200 can determine data information, such as distance and angle information, of the position of the reflected laser on the touch tool or finger relative to the positioning device 200 based on the light reflection information.
[0064] This application uses a DTOF radar as an example to describe the process of locating a target by emitting laser light. However, DTOF radar or other types of positioning devices can also locate targets in other ways, which will not be elaborated upon in this application. For example, DTOF radar can also locate targets by emitting infrared light or other light beams.
[0065] The positioning device emits a laser on a plane parallel (or nearly parallel) to and slightly above the display surface of the electronic device to detect possible touch operations by the user on the display. The position of the reflected laser is, for example, approximately the actual touch position of a touch tool or finger on the touchscreen.
[0066] In some embodiments, the positioning device emits beams of laser light at a high frequency to detect the distance and angle information of the target position of the touch tool or finger relative to the positioning device.
[0067] For example, as shown in FIG1, the positioning device 200 is a miniaturized accessory with low cost and easy installation. The positioning device 200 can be installed above the display 100. In some other embodiments, the positioning device 200 can also be located at the bottom, left, or right side of the display 100. This embodiment does not limit the location of the positioning device 200 on the display 100.
[0068] As shown in Figure 1, when the beam emitted by the positioning device 200 scans an object 300 (such as a finger or touch tool as described above), the object 300 can reflect the beam back to the positioning device 200. The positioning device 200 can calculate the position of the object 300 based on the time difference between the moment the emitted beam 210a is emitted by the positioning device 200 and the moment the received beam 210b is received by the positioning device 200. That is, if the positioning device 200 detects an object 300 within the range of the display 100, it considers that the position on the display 100 corresponding to the object 300 has been touched. The positioning device 200 can detect this position and trigger the function corresponding to the touch position on the display 100.
[0069] Figure 2 is a schematic diagram showing the beam 2a emitted by the positioning device 200 parallel to the display surface 110 of the display 100. As shown in Figure 2, the display 100 has a display side, which is the side of the display 100 facing the user along the thickness direction of the display 100. For ease of explanation, the surface on the display 100 located on the display side can be defined as the display surface 110. The user can touch the display surface 110 of the display 100 with their finger or a touch tool to trigger the corresponding function. Taking the user's finger touching the display 100 as an example, the positioning device 200 can emit the beam 2a within a 360° rotation angle range, and the beam 2a within the 360° range can form a scanning surface; the positioning device 200 can also emit the beam 2a within a rotation angle range of less than or equal to 180° and form a scanning surface, thereby reducing the amount of captured data. The scanning surface is planar and parallel to the display surface 110 of the display 100. This means that the beam 2a emitted by the positioning device 200 in any direction is parallel to the display surface 110, resulting in a consistent touch effect at all positions on the display surface 110. However, due to design and assembly tolerances of the components in the positioning device 200, it is difficult to guarantee that the beam 2a emitted by the positioning device 200 is parallel to the display surface 110. This leads to inconsistent scanning effects of the positioning device 200 at different positions on the display surface 110, consequently resulting in inconsistent touch effects.
[0070] Figure 3 is a schematic diagram showing the angle between the beam 2b emitted by the positioning device 200 and the display surface 110 of the display 100. As shown in Figure 3, when there is an angle between the beam 2b emitted by the positioning device 200 and the display surface 110, the scanning surface formed by the beam 2b within the set rotation angle range of the positioning device 200 is not planar; for example, the scanning surface is approximately conical. This causes the distance between the beam 2b and the display surface 110 to gradually increase from a position closer to the positioning device 200 to a position farther away from the positioning device 200. For example, at position M1 close to the positioning device 200, the distance h1 between the beam 2b and the display surface 110 is small, resulting in high touch accuracy. However, at position M2 far away from the positioning device 200, the distance h2 between the beam 2b and the display surface 110 is large, and the user's finger is scanned at a greater distance from the display surface 110, which leads to a significant decrease in touch accuracy.
[0071] Figure 4 is a schematic diagram of a positioning device 200 provided in an embodiment of this application. As shown in Figure 4, the positioning device 200 may include a light source 210, a first reflector 220, a second reflector 230, a third reflector 240, a driving component 250, and a light receiving component 260. The light beam emitted by the light source 210 can illuminate the first reflector 220, which can reflect the light beam emitted by the light source 210 to the second reflector 230. The second reflector 230 can further reflect the light beam to the object 300. The driving component 250 is a device that can provide power and drive the corresponding structure to rotate. For example, taking a motor as an example, the motor includes a rotating shaft 251. The second reflector 230 can be connected to the rotating shaft 251. The motor drives the rotating shaft 251 to drive the second reflector 230 to rotate synchronously within a set angle range, for example, within a 360° range. The third reflector 240 is used to receive the light beam reflected back from the object 300. The third reflector 240 can also be connected to the rotating shaft 251, and the motor can drive the rotating shaft to make the third reflector 240 rotate synchronously. The third reflector 240 can further reflect the light beam reflected back from the object 300 to the light receiving component 260. The light receiving component 260 can calculate the distance between the object 300 and the positioning device 200 based on the time difference between the light beam emitted from the light source 210 and the light beam received by the light receiving component 260.
[0072] The first reflector 220 can rotate within a certain angle range, allowing it to adjust the angle at which it reflects the light beam toward the second reflector 230, ensuring the beam is parallel to the surface of the display 100 (see Figure 2) after reflection by the second reflector 230. In the positioning device 200 shown in Figure 4, the first reflector 220 can adjust its reflection angle by rotating. The rotation center line of the first reflector 220 can intersect the axis of the motor rotation shaft 251. For example, the rotation center line of the first reflector 220 can be perpendicular or nearly perpendicular to the axis of the motor rotation shaft 251 to adjust the propagation path of the light beam emitted by the light source 210. Exemplarily, the first reflector 220 can rotate in a single direction via the rotation shaft. The second reflector 230 needs to be fixedly connected to the rotation shaft 251. The second reflector 230 can rotate synchronously with the rotation shaft 251, but it cannot rotate relative to the rotation shaft 251 to adjust its angle.
[0073] The positioning device 200 has a precise structure, and the first reflector 220 is difficult to adjust at a large angle. When the design tolerance or assembly tolerance of the second reflector 230 is large, it is difficult to correct the propagation path of the light beam by simply adjusting the angle of the first reflector 220. For example, it is difficult to make the light beam reflected by the second reflector 230 to the object 300 perpendicular to the rotation axis 251 of the drive component 250, and thus it is difficult to ensure that the light beam is parallel to the surface of the display 100 after being reflected by the second reflector 230.
[0074] Figure 5 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 5, the positioning device provided in this embodiment includes a driving component 1, a light emitting component 2, a first adjustment mechanism 3, a first reflector 4, and a second adjustment mechanism 5. The light emitting component 2 is capable of emitting a light beam, and the first adjustment mechanism 3 is connected to the light emitting component 2 and is used to adjust the angle of the light emitting component 2, thereby adjusting the emission angle of the light beam.
[0075] The first reflector 4 reflects the light beam emitted by the light emitting assembly 2, allowing the beam to illuminate the object 300. For example, when the positioning device is applied to the display 100, the light beam reflected by the first reflector 4 can illuminate a finger or touch tool used to touch the display 100. The second adjustment mechanism 5 is connected to the driving component 1 and the first reflector 4. The driving component 1 can drive the second adjustment mechanism 5 and the first reflector 4 to rotate synchronously, so that the first reflector 4 can reflect the light beam within a 360° range to scan the object.
[0076] As shown in Figure 5, the positioning device also includes a light receiving component 6. The light receiving component 6 is used to receive the light beam that is irradiated by the light emitting component 2 through the first reflector 4 onto the object 300 and reflected by the object 300. That is, the light beam reflected by the first reflector 4 onto the object can be further reflected back to the light receiving component 6 by the object 300. Based on the light beam reflected back by the object 300, the light receiving component 6 can calculate the time difference between the moment the light beam is emitted by the light emitting component 2 and the moment it is received by the light receiving component 6, and then calculate the distance between the object 300 and the positioning device to achieve accurate positioning of the object 300.
[0077] As shown in Figure 5, the positioning device also includes a bracket 7, on which the light emitting component 2 and the light receiving component 6 can both be mounted.
[0078] Compared to the positioning device structure shown in Figure 4, the positioning device shown in Figure 5 is equipped with a second adjustment mechanism 5. The first reflector 4 can be glued or fixed to the second adjustment mechanism 5 by screws or other connecting parts. The second adjustment mechanism 5 can also be installed on the drive component 1 by screws or other connecting parts. The second adjustment mechanism 5 is used to adjust the angle of the first reflector 4 to adjust the angle between the light beam reflected by the first reflector 4 and the center line 1a of the drive component 1.
[0079] The driving component 1 may include a rotating part and a stationary part. The driving component 1 can drive the rotating part to rotate relative to the stationary part through electromagnetic induction. In this structure, the center line 1a of the driving component 1 is the rotation center line corresponding to the rotation of the rotating part relative to the stationary part. For example, the driving component may be a motor, the rotating part of the motor may be a rotor, the stationary part of the motor may be a stator, the rotor may rotate relative to the stator, and the center line 1a of the motor is the rotation center line of the rotor.
[0080] In order for the positioning device to scan the finger or touch tool used for the touch display 100 (see Figure 2), when the positioning device 200 is installed on the display 100, the center line 1a of the driving component 1 can be made perpendicular to the display surface. The display surface 110 of the display 100 is perpendicular to the thickness direction of the display 100. As shown in Figure 5, during the assembly of the positioning device, the angle of the light emitting component 2 can be adjusted by the first adjustment mechanism 3, and the angle of the first reflector 4 can be adjusted by the second adjustment mechanism 5. During the adjustment process, the center line 1a of the driving component 1 can be used as a reference. The first adjustment mechanism 3 makes the light beam emanating from the light emitting component 2 onto the first reflector 4 parallel to or nearly parallel to the center line 1a of the driving component 1, and the second adjustment mechanism 5 makes the light beam reflected from the first reflector 4 onto the object perpendicular to the center line 1a. Therefore, after the positioning device is installed on the display 100, the light beam irradiated by the light emitting component 2 onto the first reflector 4 is perpendicular to or nearly perpendicular to the display surface 110 of the display 100. Then, through the reflection of the first reflector 4, it can be ensured that the light beam reflected by the first reflector 4 onto the object is parallel to the display surface 110 of the display 100.
[0081] Compared to the positioning device shown in Figure 4, the positioning device shown in Figure 5 includes a second adjustment mechanism 5. Through the cooperation of the first adjustment mechanism 3 and the second adjustment mechanism 5, the angle of the light beam emitted by the light emitting component 2 onto the first reflecting mirror 4, as well as the angle of the light beam reflected from the first reflecting mirror 4 onto the object 300, can be adjusted. This means adjusting the angle between the light beam reflected from the first reflecting mirror 4 onto the object 300 and the center line 1a of the driving component 1. For example, it ensures that the light beam reflected from the first reflecting mirror 4 onto the object 300 is perpendicular to the center line 1a of the driving component, thus ensuring that the light beam reflected from the first reflecting mirror 4 onto the object is parallel to the display surface of the display 100, guaranteeing consistent touch performance at various locations on the display 100. Furthermore, both the first adjustment mechanism 3 and the second adjustment mechanism 5 can adjust the angle of the light beam reflected from the first reflecting mirror 4 onto the object 300 with relatively small adjustments, without causing significant changes to the internal structure of the positioning device. This helps maintain the structural consistency of the positioning device and improves adjustment accuracy.
[0082] Figure 6 is a schematic diagram of the structure of the second adjustment mechanism provided in one embodiment of this application. As shown in Figure 6, the second adjustment mechanism 5 may include a mounting plate 51, a mounting bracket 52, and an adjustment component 53. The mounting plate 51 and the mounting bracket 52 are connected by the adjustment component 53, which is used to adjust the relative distance between the mounting plate 51 and the mounting bracket 52. The mounting bracket 52 can be fixedly connected to the driving component 1. For example, the mounting bracket 52 can be fixed to the rotating part 11 of the driving component 1 by screws, or it can be glued to the rotating part 11 by adhesive, so that the second adjustment mechanism 5 can rotate synchronously with the rotating part 11.
[0083] As shown in Figure 6, the mounting plate 51 may include a first mounting surface 511, and the first reflector 4 may be connected to the first mounting surface 511. Optionally, the first reflector 4 and the mounting plate 51 may be independently manufactured parts, thereby facilitating the separate design and adjustment of the first reflector 4 or the mounting plate 51 according to the actual application scenario. When assembling the first reflector 4 and the mounting plate 51, the first reflector 4 may be fixed to the first mounting surface 511 by adhesive bonding.
[0084] In some embodiments, the first reflector 4 and the mounting plate 51 can be an integrally formed structure, that is, the first reflector 4 and the mounting plate 51 can be formed in one process during the same process, thereby eliminating the assembly tolerance between the first reflector 4 and the mounting plate 51, improving accuracy, and also facilitating processing and manufacturing.
[0085] After the mounting bracket 32 is fixed to the drive component 1, the relative distance between the mounting plate 51 and the mounting bracket 52 along the axial direction of the drive component 1 can be adjusted by the adjusting component 53. This relative distance is the relative distance between a local position of the mounting plate 51 and the corresponding position of the mounting bracket 52. By adjusting the relative distance between the local positions of the mounting plate 51 and the mounting bracket 52, the distance between different positions of the mounting plate 51 and the corresponding position of the mounting bracket 52 can be made inconsistent, thereby changing the tilt posture of the mounting plate 51 relative to the mounting bracket 52. This allows adjustment of the angle of the first reflector 4 connected to the mounting plate 51, so that the light beam reflected by the first reflector 4 towards the object 300 can be parallel to the display surface 110 of the display 100.
[0086] In one embodiment, the adjusting assembly 53 may include a screw 531 and a compression member 532, with the mounting plate 51 fixed to the mounting bracket 52 by the screw 531. The compression member 532 is disposed between the mounting plate 51 and the mounting bracket 52. In some embodiments, the compression member may be, but is not limited to, a saddle-shaped washer, a wedge-shaped spring, a spring, or foam, or other components with elastic deformation capabilities. By adjusting the amount of deformation of the compression member 532, the screw 531 can adjust the relative distance between the mounting plate 51 and the mounting bracket 52. For example, when screw 531 is tightened or loosened, the compression member 532 cooperating with screw 531 is subjected to a change in the compressive force between mounting plate 51 and mounting bracket 52. The compression member 532 can undergo corresponding deformation, causing a change in the thickness of the compression member 532. This changes the relative distance between mounting plate 51 and mounting bracket 52 at the position corresponding to the compression member 532, thereby causing mounting plate 51 to tilt or not tilt relative to mounting bracket 52 to different degrees. This adjusts the angle of the first reflector 4 provided on mounting plate 51, thereby adjusting the propagation direction of the light beam after reflection by the first reflector 4. This allows the light beam reflected by the first reflector 4 to be parallel to the display surface of display 100.
[0087] The mounting plate 51 and the mounting bracket 52 can be fastened together by one, two, three, four or more screws 531. The screws 531 can be distributed at different positions on the mounting plate 51. One or more compression members 532 can be provided at each position corresponding to the screw 531. When multiple compression members 532 are provided at a position corresponding to a screw 531, the multiple compression members 532 are stacked in the thickness direction.
[0088] Figure 6 exemplarily shows that there are two screws 531, both of which can be adjusted independently. By adjusting the tightening force of the screws 531 to cause different degrees of compression deformation of the compression members 532 at the two screws 531, the distance between the mounting plate 51 and the mounting bracket 52 at the corresponding compression member 532 positions is different, thereby changing the tilt of the mounting plate 51 relative to the mounting bracket 52, thereby achieving the purpose of adjusting the angle of the first reflector 4.
[0089] Figure 7 is a schematic diagram of the structure of the second adjustment mechanism provided in another embodiment of this application. Figure 7 exemplarily shows that one screw 531 is provided. As shown in Figure 7, when the screw 531 is tightened or loosened, the degree of compression deformation of the compression member 5332 can be changed, thereby also changing the tilt of the mounting plate 51 relative to the mounting bracket 52, so as to adjust the angle of the first reflector 4.
[0090] Figure 8 is a top view of the second adjustment mechanism provided in one embodiment of this application. Figure 8 exemplarily shows that four screws 531 are provided, and the four screws 531 are distributed in different directions. By adjusting the tightening degree of different screws 531, the tilt degree of the mounting plate 51 in different directions can be adjusted, thereby further improving the accuracy of the angle adjustment of the first reflector 4 and ensuring that the light beam reflected by the first reflector 4 to the object can be parallel to the display surface of the display 100.
[0091] Furthermore, the first adjustment mechanism 3 and the second adjustment mechanism 5 can have the same or similar structures, and the structure of the first adjustment mechanism 3 will not be described in detail here. Thus, compared with the structure of the positioning device shown in FIG4, the positioning device shown in FIG5 can achieve more precise adjustment of the optical path. Even when the design tolerances and assembly tolerances of each component are large, the beam of light reflected to the object can still be adjusted to be parallel to the surface of the display through the cooperation of the first adjustment mechanism 3 and the second adjustment mechanism 5.
[0092] As shown in Figure 5, the light emitting component 2 may consist only of a light source 21. The light source 21 may be connected to a first adjustment mechanism 3, which may adjust the orientation of the light source 21, thereby adjusting the angle of the light beam emitted by the light source 21. In this embodiment, the light source 21 may be positioned on one side of the driving component 1 along the centerline 1a, so that the light beam emitted by the light source 21 is parallel to or nearly parallel to the centerline 1a of the driving component 1, thus simplifying the structure and facilitating the arrangement of the light source 21.
[0093] Figure 9 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 9, the light emitting component 2 includes a light source 21 and a second reflector 22. The second reflector 22 is used to reflect the light beam emitted by the light source 21 to the first reflector 4. The second reflector 22 is connected to the first adjustment mechanism 3. The light emitted by the light source 21 can be reflected twice, sequentially by the second reflector 22 and the first reflector 4. Both reflections can change the propagation path of the light beam, which is beneficial for the flexible arrangement of the light source 21. In this embodiment, the light emitted by the light source 21 can be perpendicular to or nearly perpendicular to the center line 1a of the driving component 1, and first illuminate the second reflector 22. The angle of the second reflector 22 can be adjusted by the first adjustment mechanism 3 so that the light beam reflected by the second reflector 22 can be parallel to or nearly parallel to the center line 1a of the driving component 1. The light beam reflected by the second reflector 22 can be further reflected by the first reflector 4 to the object 300, and the angle of the first reflector 4 can be adjusted by the second adjustment mechanism 5 so that the light beam reflected by the first reflector 4 to the object 300 is perpendicular to the center line 1a of the driving component 1, that is, parallel to the display surface of the display 100.
[0094] Figure 10 is a partial schematic diagram of a positioning device provided in an embodiment of this application. As shown in Figure 10, the first reflector 4 includes a first reflecting surface 41, and the second adjustment mechanism 5 includes a first mounting surface 511. The first reflector 4 is connected to the first mounting surface 511. To facilitate adjustment of the beam angle, the angle between the first reflecting surface 41 and the first mounting surface 511 is 45°. After the second adjustment mechanism 5 is installed on the driving component 1, the first mounting surface 511 can be perpendicular to the center line 1a of the driving component 1. In the direction extending from the center line 1a, the light emitting component 2 is positioned opposite the first reflector 4. By adjusting the first adjustment mechanism 3, the beam emitted by the light emitting component 2 towards the first reflector 4 can be parallel to or nearly parallel to the center line 1a of the driving component 1. Since the angle between the first reflective surface 41 and the first mounting surface 511 is 45°, after being reflected by the first reflective surface 41 of the first reflective mirror 4, the light beam reflected to the object 300 can be perpendicular or nearly perpendicular to the center line 1a. By further adjusting the second adjustment mechanism 5, it can be ensured that the light beam reflected to the object 300 by the first reflective film can be perpendicular to the center line 1a, that is, the light beam is parallel to the display surface of the display 100.
[0095] Figure 11 is a partial schematic diagram of a positioning device provided in another embodiment of this application. As shown in Figure 11, the first reflector 4 includes a first reflective surface 41, and the second adjustment mechanism 5 includes a first mounting surface 511. The angle between the first reflective surface 41 and the first mounting surface 511 is 45°. The first reflective surface 41 is located on the side of the first reflector 4 that is away from the driving component 1.
[0096] The second reflector 22 includes a second reflective surface 221, and the first adjustment mechanism 3 includes a second mounting surface 31. The second reflector 22 is connected to the second mounting surface 31, and the angle between the second reflective surface 221 and the second mounting surface 31 is 45°. During assembly within the positioning device, the first adjustment mechanism 3 can be positioned so that the second mounting surface 31 is parallel to the centerline 1a of the driving component 1. When the second reflector 22 is mounted onto the first adjustment mechanism 3, the angle between the second reflective surface 221 and the second mounting surface 31 can be 45°, meaning the angle between the second reflective surface 221 and the centerline 1a of the driving component 1 is 45°. The second reflective surface 221 is located on the side of the second reflector 22 facing the driving component 1, meaning the first reflective surface 41 and the second reflective surface 221 are arranged opposite each other in the direction extending from the centerline 1a of the driving component 1. The light beam emitted by the light source 21 can be perpendicular to or nearly perpendicular to the center line 1a of the driving component 1. After being reflected by the second reflecting surface 221 of the second reflecting mirror 22, the light beam emitted by the light source 21 can illuminate the first reflecting surface 41 of the first reflecting mirror 4 in a direction parallel to or nearly parallel to the center line 1a of the driving component 1. The angle of the light beam reflected from the second reflecting surface 221 to the first reflecting surface 41 can be adjusted by adjusting the first adjustment mechanism 3. Then, the light beam can be further reflected to the object 300 by the first reflecting surface 41 of the first reflecting mirror 4. The angle of the light beam reflected from the first reflecting surface 41 to the object 300 can be adjusted by adjusting the second adjustment mechanism 5 to make the light beam parallel to the display surface of the display 100. In this embodiment, by making the angle between the first reflective surface 41 and the first mounting surface 511 45° and the angle between the second reflective surface 221 and the second mounting surface 31 45°, the light source 21 can be arranged on one side of the center line 1a of the driving component 1, without having to be arranged in the direction of the extension of the center line 1a, which is beneficial to reduce the size of the positioning device in the direction of the extension of the center line 1a.
[0097] In some other embodiments, the angle between the first reflective surface 41 and the first mounting surface 511 can be other angle values. Correspondingly, the angle between the second reflective surface 221 and the second mounting surface 31 can also be other angle values. The specific angle value can be determined by considering the installation position of the light source 21 and ensuring that the light beam reflected from the first reflector 4 to the object 300 is parallel to the display surface of the display 100.
[0098] Figure 12 is a partial schematic diagram of a positioning device provided in another embodiment of this application. As shown in Figure 12, the light emitting component 2 further includes a first collimating mirror 23, which can be disposed between the light source 21 and the second reflecting mirror 22. The first collimating mirror 23 can collimate the light beam emitted by the light source 21 into a parallel beam. The parallel beam has a small divergence angle and concentrated energy, which can more accurately detect the target and reduce errors.
[0099] Figure 13 is a partial schematic diagram of a positioning device provided in another embodiment of this application. As shown in Figure 13, the first collimating mirror 23 can also be disposed between the first reflecting mirror 4 and the second reflecting mirror 22, and can also play the role of collimating the light beam.
[0100] Figure 14 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 14, the driving component 1 may include a rotating part 11 and a stationary part 12. The rotating part 11 is rotatable relative to the stationary part 12. Exemplarily, the driving component 1 can drive the rotating part 11 to rotate relative to the stationary part 12 by electromagnetic induction. The second adjustment mechanism 5 and the first reflector 4 are both disposed on the rotating part 11 and can rotate synchronously with the rotating part 11 to reflect the light beam within a 360° range and scan the object.
[0101] As shown in Figure 14, the light receiving component 6 includes a third reflector 61 and a light receiver 62. The third reflector 61 is connected to the rotating part 11 and is used to reflect the light beam reflected by the object to the light receiver 62. In one embodiment, the light emitting component 2 and the third reflector 61 can both be located on the same side of the stationary part 12, and the third reflector 61 can be disposed between the light emitting component 2 and the stationary part 12.
[0102] The rotating part 11 may be provided with a first through hole 111 and a second through hole 112. The first through hole 111 extends radially along the rotating part 11, and the second through hole 112 extends axially along the rotating part 11, and the first through hole 111 and the second through hole 112 are connected. The third reflector 61 may be disposed at the position where the first through hole 111 and the second through hole 112 are connected. The stationary part 12 may be provided with a central hole 121, which extends axially along the stationary part 12 and is axially connected to the second through hole 112 on the rotating part 11. The light receiver 62 may be disposed on the bracket 7, and the third reflector 61 and the light receiver 62 may be located on opposite sides of the stationary part 12 along the axial direction.
[0103] The light beam reflected by the object can pass through the first through hole 111 and illuminate the first reflector 4. The light beam reflected by the first reflector 4 can pass through the second through hole 112 and the positioning hole in sequence and be received by the light receiver 62.
[0104] Figure 15 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 15, the third reflector 61 can be disposed on the rotating part 11 and can rotate synchronously with the rotating part 11. The third reflector 61 and the light receiver 62 can be located on both sides of the central hole 121 of the stationary part 12 along the axial direction. The light emitting component 2 and the third reflector 61 can both be located on the same side of the stationary part 12, and the third reflector 61 is disposed between the light emitting component 2 and the stationary part 12. The positioning device also includes a third collimating lens 8, which can be disposed between the third reflector 61 and the light receiver 62. For example, the third collimating lens 8 can be disposed in the positioning hole. The third collimating lens 8 can be fixed to the inner wall of the positioning hole by snap-fit or by adhesive or other means. The light beam reflected by the third reflector 61 can be received by the light receiver 62 after passing through the third collimating lens 8. In this embodiment, the third collimating lens 8 can collimate the light beam reflected back by the object into a parallel beam. The parallel beam has a small divergence angle and concentrated energy, which is beneficial to reducing errors.
[0105] Figure 16 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 16, the light emitting component 2, the first reflector 4, and the third reflector 61 can all be located on the same side of the stationary part 12, and the third reflector 61 is disposed between the first reflector 4 and the stationary part 12. The third collimating mirror 8 can also be disposed on the rotating part 11. Exemplarily, the third collimating mirror 8 can be connected to the rotating part 11 by snap-fit or adhesive. The third collimating mirror 8 can be disposed beside the third reflector 61 so that the light beam reflected by the object passes through the third collimating mirror 8 and the third reflector 61 in sequence to propagate to the light receiver; or, the light beam reflected by the object passes through the third reflector 61 and the third collimating mirror 8 in sequence to propagate to the light receiver 62. The third collimating mirror 8 can collimate the light beam reflected by the object to the third reflector 61 into a parallel beam. The parallel beam has a small divergence angle and concentrated energy, which can more accurately detect the target, reduce errors, and improve scanning accuracy.
[0106] Figure 17 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 17, the positioning device further includes a light guide 9, which is disposed between the third reflector 61 and the light receiver 62. The light guide 9 is used to propagate the light beam reflected by the third reflector 62 to the light receiver 62. Exemplarily, the light guide 9 can be a columnar structure, such as an optical fiber or a glass tube. The light guide 9 can converge the light beam and reduce the divergence loss of the light beam.
[0107] As shown in Figure 17, the third collimating lens 8 and the light guide 9 can be simultaneously configured in this positioning device. The third collimating lens 8 is positioned on the side of the third reflecting mirror 61 facing the external object. The light guide 9 can be disposed in the central hole 121 and can extend axially within the central hole. The light guide 9 utilizes the space within the central hole 121 without occupying space outside the positioning device, thus improving integration. The light beam reflected by the object can first be collimated into a parallel beam by the third collimating lens 8. The collimated parallel beam can then be focused onto the third reflecting mirror 61, reducing light loss. After reflection by the third reflecting mirror 61, the light beam can be focused by the light guide 9, further reducing beam divergence, increasing light intensity, and improving detection accuracy.
[0108] Figure 18 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 18, the driving component 1 may include a rotating part 11 and a stationary part 12. The rotating part 11 is rotatable relative to the stationary part 12. A first reflector 4 is disposed on the rotating part 11 via a second adjustment mechanism 5. A third through hole 113 and a fourth through hole 114 may be provided on the rotating part 11. The third through hole 113 extends radially along the rotating part 11, and the fourth through hole 114 extends axially along the rotating part 11, and the third through hole 113 and the fourth through hole 114 are connected. The stationary part 12 is provided with a central hole 121, which extends axially along the stationary part 12 and is connected to the fourth through hole 114. The light emitting component 2 and the first reflector 4 are respectively located on both sides of the central hole 121 along the axial direction of the driving component 1. The light beam emitted by the light emitting component 2 can sequentially pass through the central hole 121 and the fourth through hole 114 to illuminate the first reflector 4. The first reflector 4 can reflect the light beam to the object through the third through hole 113.
[0109] As shown in Figure 18, the light receiving assembly 6 includes a third reflector 61, a fourth reflector 63, and a light receiver 62. The first reflector 4, along with the third reflector 61, fourth reflector 63, and light receiver 62, is located on the same side of the stationary section 12, and is positioned between the third reflector 61 and the stationary section 12. The fourth reflector 63 and the third reflector 61 are located on the same side of the rotating section 11. Light beams reflected from an object can be reflected sequentially by the third reflector 61 and the fourth reflector 63 to change their propagation angle, and are ultimately received by the light receiver 62. Therefore, through the cooperation of the third reflector 61 and the fourth reflector 63, the position of the light receiver 62 can be flexibly configured.
[0110] Figure 19 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 19, the third collimating lens 8 can be disposed between the fourth reflecting mirror 63 and the light receiver 62. Figure 16 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 16, the third collimating lens 8 can also be disposed between the third reflecting mirror 61 and the fourth reflecting mirror 63. The above-mentioned positions of the third collimating lens 8 can all achieve collimation of the light beam reflected back from the object, improving the receiving accuracy of the light receiver 62.
[0111] Figure 20 is a schematic diagram of the positioning device provided in another embodiment of this application. As shown in Figure 20, the light emitting component 2 includes a light source 21, a connecting frame 25, and a second collimating lens 24. Both the light source 21 and the second collimating lens 24 are connected to the connecting frame 25. Thus, the light source 21, the second collimating lens 24, and the connecting frame 25 constitute an integral component, enabling synchronous movement of the light source 21, the second collimating lens 24, and the connecting frame 25. The light source 21 or the connecting frame 25 is connected to a first adjustment mechanism 3. The first adjustment mechanism 3 can synchronously adjust the light source 21 and the second collimating lens 24, ensuring that the light beam emitted by the light source 21 can be collimated into a parallel beam by the second collimating lens 24 at any angle.
[0112] In one embodiment, the connecting frame 25 can be a hollow tubular structure, and the second collimating lens 24 can be disposed inside the connecting frame 25 and can be connected and fixed to the connecting frame 25 by means of snap-fit or adhesive.
[0113] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A positioning device, characterized in that The application relates to a light emitting device. The device comprises: a driving component; a light emitting assembly for emitting a light beam; a first adjusting mechanism connected with the light emitting assembly for adjusting the angle of the light emitting assembly; a first reflecting mirror for reflecting the light beam emitted by the light emitting assembly; 2. The positioning device of claim 1, wherein, a second adjusting mechanism connected with the driving component and the first reflecting mirror, the second adjusting mechanism being used for adjusting the angle of the first reflecting mirror so as to adjust the included angle between the light beam reflected by the first reflecting mirror and the center line of the driving component.
3. The positioning device according to claim 1 or 2, characterized in that The driving component comprises a rotating part, and the second adjusting mechanism is connected with the rotating part.
4. The positioning device of claim 3, wherein, The second adjusting mechanism comprises a mounting plate, a mounting frame and an adjusting assembly, the mounting plate being connected with the mounting frame through the adjusting assembly, and the adjusting assembly being used for adjusting the relative distance between the mounting plate and the mounting frame.
5. The positioning device according to any one of claims 1-4, characterized in that, The adjusting assembly comprises a screw and a compression part, the compression part being arranged between the mounting plate and the mounting frame, and the screw being used for adjusting the deformation amount of the compression part so as to adjust the relative distance between the mounting plate and the mounting frame.
6. The positioning device according to any one of claims 1-5, characterized in that The first reflecting mirror is connected with the mounting plate, or the first reflecting mirror is integrally formed with the mounting plate.
7. The positioning device of claim 6, wherein, The device further comprises a light receiving assembly for receiving the light beam reflected by an object after the light beam is irradiated to the object by the light emitting assembly through the first reflecting mirror.
8. The positioning device of claim 7, wherein, The light receiving assembly comprises a third reflecting mirror and a light receiver, the third reflecting mirror being connected with the driving component, and the third reflecting mirror being used for reflecting the light beam reflected by the object to the light receiver.
9. The positioning device of claim 8, wherein, The device further comprises a third collimating mirror arranged beside the third reflecting mirror, so that the light beam reflected by the object is sequentially transmitted to the light receiver through the third collimating mirror and the third reflecting mirror, or the light beam reflected by the object is sequentially transmitted to the light receiver through the third reflecting mirror and the third collimating mirror.
10. The positioning device of claim 9, wherein, The device further comprises a light guide arranged between the third reflecting mirror and the light receiver, the light guide being used for transmitting the light beam reflected by the third reflecting mirror to the light receiver. The driving component comprises a rotating part and a stationary part, the rotating part being rotationally connected with the stationary part, and the third reflecting mirror being arranged on the rotating part.
11. The positioning device of claim 10, wherein, The stationary part is provided with a central hole, the third reflecting mirror and the light receiver being respectively arranged on two sides of the central hole along the axial direction of the driving component, and the third reflecting mirror reflecting the light beam to the light receiver through the central hole.
12. The positioning device of claim 9, wherein, The light guide is arranged in the central hole.
13. The positioning device according to any one of claims 1-12, characterized in that The device further comprises a fourth reflecting mirror, the fourth reflecting mirror and the third reflecting mirror being arranged on the same side of the driving component, and the fourth reflecting mirror being used for reflecting the light beam reflected by the third reflecting mirror to the light receiver.
14. The positioning device of claim 13, wherein, The light emitting assembly comprises a light source and a second reflecting mirror, the second reflecting mirror being connected with the first adjusting mechanism, and the second reflecting mirror being used for reflecting the light beam emitted by the light source to the first reflecting mirror. The light emitting assembly further comprises a first collimating mirror arranged between the light source and the second reflecting mirror. Alternatively, the first collimating mirror is arranged between the first reflecting mirror and the second reflecting mirror.
15. The positioning device according to any one of claims 1-9, 12, characterized in that, The light emitting assembly comprises a light source, which is connected to the first adjusting mechanism.
16. The positioning device of claim 15, wherein, The light emitting assembly further comprises a connecting frame and a second collimating mirror, the light source and the second collimating mirror are both connected to the connecting frame, and the light source or the connecting frame is connected to the first adjusting mechanism.
17. The positioning device of any one of claims 1-9, 12, 15-16, wherein, The driving component comprises a rotating part and a stationary part, and the rotating part is rotationally connected to the stationary part. The stationary part is provided with a central hole, and the light emitting assembly and the first reflecting mirror are respectively located on two sides of the central hole along the axial direction of the driving component, and the light beam emitted by the light emitting assembly irradiates to the first reflecting mirror through the central hole.
18. An electronic device, comprising: The positioning device of any one of claims 1-17 is arranged on a display.