Optical-mechanical module visual debugging device and method, and laser radar

Abstract

The application discloses an optical-mechanical module visual debugging device and method and a laser radar. The optical-mechanical module visual debugging device comprises an optical-mechanical module, a light source module, a transmissive-reflection lens, an imaging device and a display. The light source module is used for emitting a laser beam towards the optical-mechanical module. The transmissive-reflection lens is located between the light source module and the optical-mechanical module, is used for transmitting the laser beam to the optical-mechanical module, and reflects an outgoing beam reflected by the optical-mechanical module into the imaging device. The imaging device is in communication connection with the display, is used for receiving the outgoing beam, performing imaging processing on the outgoing beam, obtaining an imaging image of a to-be-debugged element and a received light spot in the optical-mechanical module, and sending the imaging image to the display. The display is used for receiving and displaying the imaging image. The application solves the technical problems of low debugging efficiency and large space occupied by debugging of the optical-mechanical module.

Description

Technical Field

[0001] This application relates to the field of optical debugging technology, and in particular to a visual debugging device, method and lidar for an optomechanical module. Background Technology

[0002] As a core component of lidar or optical sensors, the optical tuning results of the optomechanical module directly affect the performance of lidar or optical sensors.

[0003] The debugging of the optical-mechanical module is mainly based on the state of the optical signal at the receiving end to judge the effect of optical debugging. However, since the initial position of the receiving spot is unknown in the initial debugging stage, the initial debugging direction cannot be determined. Therefore, the debugging is usually carried out by enumeration search through the default direction. The enumeration search takes too long, resulting in low debugging efficiency of the optical-mechanical module. In addition, the debugging process needs to be carried out in the actual ranging range, which often requires a distance of ten meters or even tens of meters, and the debugging occupies a large space. Summary of the Invention

[0004] The main purpose of this application is to provide a visual debugging method, system, device and storage medium for optical engine modules, which aims to solve the technical problems of low debugging efficiency and large space required for debugging in the prior art.

[0005] To achieve the above objectives, this application provides a visual debugging device for an optomechanical module, which includes an optomechanical module, a light source module, a mirror, an imaging device, and a display, wherein:

[0006] The light source module is used to emit a laser beam toward the optomechanical module;

[0007] The reflector is located between the light source module and the optomechanical module, and is used to transmit the laser beam to the optomechanical module and reflect the outgoing beam reflected by the optomechanical module into the imaging device;

[0008] The imaging device is communicatively connected to the display and is used to receive the emitted light beam, perform imaging processing on the emitted light beam to obtain an imaging image of the component to be debugged in the optomechanical module and the received light spot, and send the imaging image to the display.

[0009] The display is used to receive and display the imaging image.

[0010] Optionally, the optomechanical module visualization debugging device further includes a filter, which is located between the mirror and the imaging device. The filter is used to filter the outgoing light beam reflected by the mirror and transmit the filtered outgoing light beam into the imaging device.

[0011] Optionally, the spectral band of the filter is set to match the spectral band of the laser beam emitted by the light source module.

[0012] Optionally, the optical engine module visualization debugging device further includes a debugging machine, on which the optical engine module is mounted, and the debugging machine is used to adjust the focal length and position of the optical engine module.

[0013] Optionally, the laser beam emitted by the light source module is a parallel beam, and the spectral band corresponding to the laser beam can be switched by a custom configuration.

[0014] Optionally, the reflector is provided with an optical film layer, which reflects and transmits the laser beam and / or the outgoing beam according to a preset reflectance-transmission ratio.

[0015] Optionally, the light source module includes a planar light source and a light-diffusing plate, or it includes a point light source and a collimating lens.

[0016] This application also provides a visual debugging method for an optical-mechanical module, the visual debugging method for the optical-mechanical module comprising:

[0017] A laser beam is emitted through the light source module, and the laser beam is transmitted into the optomechanical module through the reflective mirror;

[0018] The laser beam is reflected by the mirror, which reflects the output beam from the optomechanical module, and then into the imaging device.

[0019] The imaging device performs imaging processing on the emitted beam to obtain an image of the component to be debugged and the receiving light spot in the optomechanical module, and sends and displays the image to the display.

[0020] The optomechanical module is debugged based on the relative position between the component to be debugged and the receiving light spot on the display.

[0021] Optionally, the step of debugging the optomechanical module based on the relative position between the element to be debugged and the received light spot in the image on the display includes:

[0022] Based on the relative position between the component to be debugged and the receiving light spot on the display, the component to be debugged is adjusted to the position of the receiving light spot.

[0023] This application also provides a lidar, which includes an optomechanical module, and the optomechanical module is debugged based on the optomechanical module visualization debugging device and / or the optomechanical module visualization debugging method.

[0024] This application provides a visual debugging device, method, and storage medium lidar for an optomechanical module. The visual debugging device includes an optomechanical module, a light source module, a reflector, an imaging device, and a display. The light source module emits a laser beam toward the optomechanical module. The reflector, located between the light source module and the optomechanical module, transmits the laser beam to the optomechanical module and reflects the emitted beam from the optomechanical module to the imaging device. The imaging device, communicatively connected to the display, receives the emitted beam and performs imaging processing on it to obtain the target laser beam in the optomechanical module. The system includes an imaging image of the debugging element and the receiving light spot, and the transmission of the imaging image to the display. The display receives and displays the imaging image, enabling a clear view of the relative position between the debugging element and the receiving light spot. This allows for real-time monitoring of the debugging element's position relative to the receiving light spot during debugging, enabling the element to be quickly and accurately adjusted to the position of the receiving light spot. This improves the efficiency of the optomechanical module debugging and enhances the reliability of the debugging results. Furthermore, the debugging is performed through a visual debugging device for the optomechanical module, eliminating the need for actual ranging space and improving the convenience of debugging. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the optical-mechanical module visualization debugging device of this application;

[0028] Figure 2 This is a schematic diagram of the parallel beam generated by a planar light source in the visual debugging device for the optomechanical module of this application;

[0029] Figure 3 This is a schematic diagram of the parallel beam generated by a point light source and a collimating lens in the visual debugging device for the optomechanical module of this application;

[0030] Figure 4 This is a flowchart illustrating the first embodiment of the optical-mechanical module visualization debugging method of this application.

[0031] Explanation of icon numbers:

[0032] label name label name 01 Light source module 05 Filter 02 Mirror 06 Imaging equipment 03 Optomechanical module 07 monitor 04 Debugging machine

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application.

[0035] In the existing technical solution: since the initial position of the received light spot is unknown during the initial debugging stage of the optical engine module, the initial debugging direction cannot be determined. Therefore, the debugging is usually carried out by enumeration search through the default direction. The enumeration search takes too long, resulting in low debugging efficiency of the optical engine module. In addition, the debugging process needs to be carried out on the actual ranging range, which often requires a distance of ten meters or even tens of meters, and the debugging occupies a large space.

[0036] The technical solution provided in this application mainly includes: the optical-mechanical module visualization debugging device comprises an optical-mechanical module, a light source module, a reflector, an imaging device, and a display, wherein: the light source module is used to emit a laser beam toward the optical-mechanical module; the reflector is located between the light source module and the optical-mechanical module, used to transmit the laser beam to the optical-mechanical module, and reflect the outgoing beam reflected by the optical-mechanical module to the imaging device; the imaging device is communicatively connected to the display, used to receive the outgoing beam, and to perform imaging processing on the outgoing beam to obtain an imaging image of the component to be debugged in the optical-mechanical module and the received light spot, and to send the imaging image to the display; the display is used to receive and display the imaging image. This enables the display-based imaging, clearly showing the relative position between the component to be debugged and the receiving light spot. By monitoring the position of the component to be debugged relative to the receiving light spot in real time during the debugging process, the component to be debugged can be quickly and accurately adjusted to the position of the receiving light spot, thereby improving the debugging efficiency of the optomechanical module and enhancing the reliability of the debugging results. Furthermore, debugging is carried out through the optomechanical module visualization debugging device, eliminating the need to perform the debugging in the actual ranging space, thus improving the convenience of debugging.

[0037] Specifically, embodiments of this application provide a visual debugging device for an optomechanical module, referring to... Figure 1 , Figure 1This is a schematic diagram of the structure of the optical-mechanical module visualization debugging device of this application. The optical-mechanical module visualization debugging device includes a light source module 01, a reflective mirror 02, an optical-mechanical module 03, an imaging device 06, and a display 07. The light-emitting end of the light source module 01 faces the optical-mechanical module 03. The reflective mirror 02 is located between the light source module 01 and the optical-mechanical module 03. The imaging device 06 is communicatively connected to the display 07. The display 07 can be a display device such as a PC (Personal Computer), tablet computer, or portable computer.

[0038] Furthermore, the visual debugging device for the optical engine module 03 also includes a debugging platform 04, on which the optical engine module 03 is mounted. The debugging platform 04 is used to adjust the focal length and position of the optical engine module 03.

[0039] Furthermore, in order to ensure that the light beam received by the imaging device 06 matches the spectral band of the light beam emitted by the light source module 01, the visual debugging device of the optomechanical module 03 also includes a filter 05. The filter 05 is disposed between the reflective mirror 02 and the imaging device 06, thereby filtering out light beams that do not conform to the preset spectral band, so that the light beams received by the imaging device 06 match the spectral band of the laser beam sent by the light source module 01.

[0040] Furthermore, to more clearly explain the working principle of the control system, the following detailed explanation will be provided.

[0041] The light source module is used to emit a laser beam toward the optomechanical module;

[0042] In this embodiment, it should be noted that the spectral band corresponding to the laser beam can be customized and switched according to actual conditions. The light source module 01 is set on the debugging platform 04, which is used to adjust the focal length and position of the optical-mechanical module 03, so that the optical-mechanical module 03 is in the optimal optical state. For example, the direction of the light beam emitted by the light source module is set to the Y-axis direction, and the adjustment of the debugging platform in the Y-axis direction is to adjust the focal length. The other two directions, X and Z, are used to adjust the position. Further, the laser beam is a parallel laser, and the spectral band corresponding to the laser beam can be customized and switched. The parallel beam is used to supplement the light source of the optical-mechanical module 03. Preferably, the parallel beam is perpendicular to the optical-mechanical module 03, so that the imaging device 06 can capture the light-emitting chip or photosensitive element in the optical-mechanical module 03. The light-emitting chip realizes light emission through radiative recombination that releases energy by radiating photons, and the photosensitive element is an electronic component that converts the light entering the lens of the optical-mechanical module into an analog electrical signal.

[0043] As one possible implementation, the parallel beam generated by the light source module 01 can be achieved by configuring a planar light source. Specifically, refer to... Figure 2 , Figure 2 This is a schematic diagram of the optical-mechanical module 03 visualization debugging device of this application, in which a parallel beam is generated by a planar light source. The planar light source can be composed of several light-emitting chips, and the light is homogenized by a light homogenizing plate to make the intensity of the emitted beam uniform. Then, the beam is expanded by a diffuser plate to make the beam exhibit the characteristics of a parallel beam.

[0044] Alternatively, the parallel beam generated by the light source module 01 can be achieved by configuring a point light source and a collimating lens. Specifically, refer to... Figure 3 , Figure 3 This is a schematic diagram of the optical-mechanical module 03 visualization debugging device of this application, in which a parallel beam is generated by a point light source and a collimating lens. The point light source emits a beam with a certain divergence angle, which is then used to form a parallel beam through the collimating lens. The point light source is positioned at the focal plane of the collimating lens.

[0045] The mirror is used to transmit the laser beam into the optomechanical module and reflect the outgoing beam reflected by the optomechanical module into the imaging device;

[0046] In this embodiment, it should be noted that the reflective mirror 02 is provided with an optical film layer. The optical film layer reflects and transmits light beams according to a preset reflective ratio. The reflective ratio is the ratio of the transmitted light beam to the reflected light beam, which can be set according to the actual situation. Preferably, the ratio of the transmitted light beam to the reflected light beam is set to 5:5.

[0047] Specifically, after the light source module 01 emits a laser beam, a portion of the laser beam is reflected by the reflective mirror 02, and another portion passes through the lens of the optomechanical module 03, focusing onto the component to be adjusted in the optomechanical module 03. The component to be adjusted includes a light-emitting chip and a photosensitive element. The light-emitting chip or photosensitive element then reflects the emitted beam, transmitting it onto another surface of the reflective mirror 02. Further, the reflective mirror 02 projects the emitted beam reflected by the component to be adjusted in the optomechanical module 03 along the direction of the imaging device 06. Further, in another possible embodiment, to ensure that the spectral band of the beam received by the imaging device 06 corresponds to the spectral band of the beam emitted by the light source module 01... To match the laser beam emitted by the light source module 01, a filter 05 is placed between the reflector 02 and the imaging device 06. The emitted light beam reflected by the reflector 02 passes through the filter 05. The filter 02 is configured to transmit a spectral band that matches the spectral band of the laser beam emitted by the light source module 01. This filters out interference beams that do not match the spectral band of the laser beam and transmits the reflected light that matches the spectral band of the laser beam to the imaging device 06. It should be noted that the spectral bandpass of the filter 05 is set according to the spectral characteristics of the light source module 01. When the spectrum of the light source module 01 changes, the bandpass of the filter can also be switched. Preferably, the bandpass width can be set to 10nm.

[0048] It should also be noted that the reflected optical path of the outgoing beam reflected by the optomechanical module 03 is the same as the incident optical path of the laser beam transmitted to the optomechanical module 03. The reflection direction of the laser beam reflected by the transflector 02 is different from the reflection direction of the outgoing beam reflected by the transflector 02. (Refer to...) Figure 1 The reflection direction of the laser beam by the reflector 02 is away from the imaging device 06, that is, the beam is reflected downwards. The reflection direction of the outgoing beam by the reflector 02 is towards the imaging device 06, that is, the beam is reflected upwards.

[0049] The imaging device is used to receive the emitted light beam, perform imaging processing on the emitted light beam to obtain an imaging image of the component to be debugged in the optomechanical module and the received light spot, and send the imaging image to the display.

[0050] The display is used to receive and display the imaging image.

[0051] In this embodiment, specifically, the imaging device 06 receives the emitted light beam and then performs imaging processing on the emitted light beam to obtain an image corresponding to the component to be adjusted and the received light spot. The optimal imaging effect can be achieved by adjusting the focal length and aperture of the imaging device 06, thereby enabling the imaging device 06 to sense the light-emitting chip or photosensitive element of the optical engine module 03 and then send the image to the display 07. This allows the user to directly see the image on the display 07. Based on the image, the relative position between the component to be adjusted and the received light spot in the optical engine module 03 is determined. Then, based on the relative position, the position of the component to be adjusted in the optical engine module 03 is adjusted to be aligned with the position of the received light spot. This achieves visual adjustment of the position of the component to be adjusted based on the relative position of the component to be adjusted and the received light spot in the image.

[0052] In this embodiment, the optical-mechanical module visualization and debugging device includes an optical-mechanical module, a light source module, a reflector, an imaging device, and a display. The light source module emits a laser beam toward the optical-mechanical module. The reflector, located between the light source module and the optical-mechanical module, transmits the laser beam to the optical-mechanical module and reflects the emitted beam from the optical-mechanical module to the imaging device. The imaging device, communicatively connected to the display, receives the emitted beam and performs imaging processing on it to obtain an image of the component to be debugged in the optical-mechanical module and the received light spot. The imaging image is sent to the display; the display is used to receive and display the imaging image, realizing the imaging image displayed on the display, which can clearly see the relative position between the component to be debugged and the receiving light spot. This allows the component to be debugged to be quickly and accurately adjusted to the position of the receiving light spot by real-time monitoring of the position of the component to be debugged relative to the receiving light spot during the debugging process, thereby improving the debugging efficiency of the optomechanical module and the reliability of the debugging results. Moreover, debugging is carried out through the optomechanical module visualization debugging device, which does not need to be carried out in the actual ranging space, thus improving the convenience of debugging.

[0053] Furthermore, referring to Figure 4 In the first embodiment of this application, a visual debugging method for an optical-mechanical module is provided. The method is applied to a visual debugging device for an optical-mechanical module and includes:

[0054] Step S10: A laser beam is emitted through the light source module, wherein the laser beam is transmitted to the optomechanical module through the reflective mirror;

[0055] Step S20: The laser beam, which is reflected by the optical-mechanical module through the reflector, is reflected into the imaging device.

[0056] Step S30: The outgoing beam is imaged by the imaging device to obtain an image of the component to be debugged and the receiving light spot in the optomechanical module, and the image is sent and displayed on the display.

[0057] Step S40: Based on the relative position between the component to be debugged and the receiving light spot on the display, the optomechanical module is debugged.

[0058] The step of debugging the optomechanical module based on the relative position between the component to be debugged and the received light spot in the image on the display includes:

[0059] Step S41: Based on the relative position between the component to be debugged and the receiving light spot on the display, adjust the component to be debugged to the position of the receiving light spot.

[0060] In this embodiment, specifically, the light source module is first mounted on a debugging platform, which is used to adjust the focal length and position of the optical-mechanical module to bring it to its optimal optical state. Then, the light source module emits a laser beam, which is transmitted through the reflector into the optical-mechanical module. Further, the laser beam passes through the lens of the optical-mechanical module and is focused onto a light-emitting chip or the element to be debugged within the module. The light-emitting chip or the element then reflects the beam, transmitting it onto another surface of the reflector. Finally, the reflector reflects the light from the optical-mechanical module. The emitted light beam is projected along the direction of the imaging device. It should be noted that, in order to ensure that the light beam received by the imaging device matches the spectral band of the light beam emitted by the light source module, a filter is placed between the mirror and the imaging device. The spectral band pass of the filter is set according to the spectral characteristics of the light source module. After the spectral transformation of the light source module, the band pass of the filter can be switched. Thus, the emitted light beam reflected by the mirror will pass through the filter, thereby filtering out interference beams that do not match the spectral band of the laser beam, and transmitting the reflected light that matches the spectral band of the laser beam to the imaging device. The emitted light beam is then imaged by the imaging device to obtain an image. The optimal imaging effect can be achieved by adjusting the focal length and aperture of the imaging device, thereby enabling the imaging device to sense the light-emitting chip or photosensitive element of the optical engine module. Furthermore, the image is sent to the display, allowing the user to directly see the image on the display. Based on the image, the user can determine the relative position between the element to be debugged in the optical engine module and the receiving light spot. Based on the relative position, the focal length and position of the optical engine module are adjusted by the debugging machine, thereby adjusting the photosensitive element of the optical engine module to the position of the receiving light spot.

[0061] This application provides a visual debugging method for an optomechanical module. Specifically, a laser beam is emitted from a light source module and transmitted into the optomechanical module through a mirror. The mirror reflects the laser beam, which is then reflected by the optomechanical module, into an imaging device. The imaging device processes the emitted beam to obtain an image of the component to be debugged and the receiving light spot within the optomechanical module. This image is then sent and displayed on a monitor. Based on the relative position between the component to be debugged and the receiving light spot on the monitor, the optomechanical module is debugged. This method allows for a clear view of the relative position between the component to be debugged and the receiving light spot based on the displayed image. By monitoring the position of the component to be debugged relative to the receiving light spot in real time during debugging, the component can be quickly and accurately adjusted to the position of the receiving light spot, thus improving the efficiency and reliability of the debugging results. Furthermore, debugging via a visual debugging device eliminates the need for actual ranging space, enhancing the convenience of the debugging process.

[0062] This application provides a lidar, which includes an optomechanical module. The optomechanical module is debugged based on the optomechanical module visualization debugging device and / or the optomechanical module visualization debugging method, which will not be described in detail here.

[0063] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0064] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0065] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A visual debugging device for an optomechanical module, characterized in that, The optomechanical module visualization and debugging device includes an optomechanical module, a light source module, a mirror, an imaging device, and a display, wherein: The light source module is used to emit a laser beam toward the optomechanical module. The laser beam emitted by the light source module is a parallel beam, and the parallel beam is perpendicular to the optomechanical module. The reflector is located between the light source module and the optomechanical module, and is used to transmit the laser beam to the optomechanical module and reflect the outgoing beam reflected by the optomechanical module into the imaging device; The imaging device is communicatively connected to the display and is used to receive the emitted light beam, perform imaging processing on the emitted light beam to obtain an imaging image of the component to be debugged in the optomechanical module and the received light spot, and send the imaging image to the display. The display is used to receive and display the imaging image, which is used to determine the relative position of the element to be debugged and the received light spot. The element to be debugged in the optomechanical module is a light-emitting chip or a photosensitive element. The optical-mechanical module visualization debugging device also includes a filter, which is located between the mirror and the imaging device. The filter is used to filter the outgoing light beam reflected by the mirror and transmit the filtered outgoing light beam into the imaging device. The spectral band of the filter is set to match the spectral band of the laser beam emitted by the light source module.

2. The optomechanical module visualization and debugging device as described in claim 1, characterized in that, The optical-mechanical module visualization and debugging device also includes a debugging platform, on which the optical-mechanical module is mounted. The debugging platform is used to adjust the focal length and position of the optical-mechanical module.

3. The optomechanical module visualization and debugging device as described in any one of claims 1-2, characterized in that, The spectral band corresponding to the laser beam can be switched according to a custom configuration, and the parallel beam is used to supplement the light source for the optomechanical module.

4. The optomechanical module visualization and debugging device as described in claim 1, characterized in that, The reflector is provided with an optical film layer, which reflects and transmits the laser beam and / or the outgoing beam according to a preset reflectance-transmission ratio.

5. The optomechanical module visualization and debugging device as described in claim 1, characterized in that, The light source module includes a planar light source and a light-diffusing plate, or it includes a point light source and a collimating lens.

6. A visual debugging method for an optomechanical module, characterized in that, The method is applied to the optical-mechanical module visualization and debugging device as described in any one of claims 1 to 5, wherein the optical-mechanical module visualization and debugging method comprises: A laser beam is emitted through the light source module, and the laser beam is transmitted into the optomechanical module through the reflective mirror; The laser beam is reflected by the mirror, which reflects the output beam from the optomechanical module, and then into the imaging device. The imaging device performs imaging processing on the emitted beam to obtain an image of the component to be debugged and the receiving light spot in the optomechanical module, and sends and displays the image to the display. The optomechanical module is debugged based on the relative position between the component to be debugged and the receiving light spot on the display.

7. The method for visually debugging an optomechanical module as described in claim 6, characterized in that, The step of debugging the optomechanical module based on the relative position between the component to be debugged on the display and the received light spot includes: Based on the relative position between the component to be debugged and the receiving light spot on the display, the component to be debugged is adjusted to the position of the receiving light spot.

8. A lidar, characterized in that, The lidar includes an optomechanical module as described in any one of claims 1 to 5, wherein the optomechanical module is debugged based on the optomechanical module visualization debugging device as described in any one of claims 1 to 5 or / and the optomechanical module visualization debugging method as described in any one of claims 6 to 7.

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