CN217981857U - Vehicle-mounted unmanned aerial vehicle laser radar, vehicle-mounted unmanned aerial vehicle detection system and vehicle - Google Patents
Vehicle-mounted unmanned aerial vehicle laser radar, vehicle-mounted unmanned aerial vehicle detection system and vehicle Download PDFInfo
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Abstract
The utility model provides a vehicle-mounted unmanned aerial vehicle lidar, vehicle-mounted unmanned aerial vehicle detecting system and vehicle, through having the transmission module of super lens module with the vehicle that the vehicle-mounted unmanned aerial vehicle lidar belongs to around the light collimation back radiation that the laser instrument sent in the transmission module, form the point cloud of surveying the target object, use super lens in vehicle-mounted unmanned aerial vehicle lidar's transmission module, under the condition of avoiding using mechanical rotary structure and MEMS based semi-solid state structure, just can make vehicle-mounted unmanned aerial vehicle lidar can survey vehicle road conditions information all around, ensure that the vehicle does not have the blind area in the driving process; moreover, the super lens has the advantages of being light, thin, simple, cheap and high in productivity, so that the vehicle-mounted unmanned aerial vehicle laser radar using the super lens module has the characteristics of small size (specification) and light weight.
Description
Technical Field
The utility model relates to a computer technology field particularly, relates to an on-vehicle unmanned aerial vehicle laser radar, on-vehicle unmanned aerial vehicle detecting system and vehicle.
Background
At present, because survey comprehensive and convenient to use, it is becoming a trend to use on-vehicle unmanned aerial vehicle to throw light on and survey the target object on the car. To realize wide-angle detection, the laser radar who uses among the on-vehicle unmanned aerial vehicle often uses mechanical type revolution mechanic or based on MEMS's half solid state structure, leads to laser radar heavy and specification big, is unfavorable for on-vehicle unmanned aerial vehicle's miniaturization and lightweight.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an aim at provides an on-vehicle unmanned aerial vehicle laser radar, on-vehicle unmanned aerial vehicle detecting system and vehicle.
In a first aspect, the embodiment of the utility model provides an on-vehicle unmanned aerial vehicle lidar for the target object that appears around the detection vehicle, on-vehicle unmanned aerial vehicle lidar, include: the device comprises a transmitting module and a receiving module;
the transmission module includes: a laser and a superlens module;
the super-lens module is used for collimating the light rays emitted by the laser and then radiating the collimated light rays to the periphery of a vehicle to which the vehicle-mounted unmanned aerial vehicle laser radar belongs to form a point cloud for detecting a target object;
and the receiving module is used for receiving the echo signal reflected by the target object.
In a second aspect, the embodiment of the present invention further provides a vehicle-mounted unmanned aerial vehicle detection system, configured to detect a target object appearing around a vehicle and illuminate; on-vehicle unmanned aerial vehicle detecting system includes: a lighting module and the vehicle-mounted unmanned aerial vehicle laser radar of the first aspect;
the lighting module includes: a light source and a tunable superlens array;
the light source is positioned on a focal plane of the adjustable super lens array;
when on-vehicle unmanned aerial vehicle laser radar detects when the target object appears around the vehicle, adjustable super lens array is right the outgoing direction of the light that the light source sent carries out phase modulation, behind the phase modulation light can shine and deviate the region of the position of target object.
In a third aspect, an embodiment of the present invention further provides a vehicle, including: the on-vehicle unmanned aerial vehicle detecting system of the above-mentioned second aspect.
In the embodiment of the present invention, in the schemes provided in the first to third aspects, the emitting module with the super lens module radiates the collimated light emitted by the laser in the emitting module to the surroundings of the vehicle to which the vehicle-mounted unmanned aerial vehicle laser radar belongs, thereby forming the point cloud for detecting the target object, compared with the mode in which the vehicle-mounted unmanned aerial vehicle laser radar uses the mechanical rotating structure or the semi-solid structure based on the MEMS to realize the wide-angle detection in the related art, the super lens is applied to the emitting module of the vehicle-mounted unmanned aerial vehicle laser radar, under the condition of avoiding using the mechanical rotating structure and the semi-solid structure based on the MEMS, the vehicle-mounted unmanned aerial vehicle laser radar can detect the road condition information around the vehicle, and it is ensured that the vehicle has no blind area in the driving process; moreover, the superlens has the advantages of being light, thin, simple, cheap and high in productivity, so that the vehicle-mounted unmanned aerial vehicle laser radar using the superlens module has the characteristics of small size (specification) and light weight, the purposes of miniaturization and light weight of the vehicle-mounted unmanned aerial vehicle are achieved, the load of the vehicle-mounted unmanned aerial vehicle is reduced, and the cruising ability of the vehicle-mounted unmanned aerial vehicle is improved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a vehicle-mounted unmanned aerial vehicle laser radar provided by an embodiment of the present invention;
fig. 2 shows an arrangement of regular hexagonal, square, and fan-shaped nanostructures on a substrate in a super lens in a vehicle-mounted unmanned aerial vehicle lidar according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a receiving module in the vehicle-mounted laser radar of the unmanned aerial vehicle provided by the embodiment of the present invention;
fig. 4 shows the embodiment of the present invention provides an exemplary structure of a lighting module in a vehicle-mounted laser radar of unmanned aerial vehicle.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
At present, because survey comprehensive and convenient to use, it is becoming a trend to use on-vehicle unmanned aerial vehicle to throw light on and survey the target object on the car. To realize the wide angle detection, the laser radar who uses among the on-vehicle unmanned aerial vehicle often uses mechanical type revolution mechanic or based on MEMS half solid-state structure, leads to laser radar weight heavy and specification big, is unfavorable for on-vehicle unmanned aerial vehicle's miniaturization and lightweight.
Based on this, this embodiment provides a vehicle-mounted unmanned aerial vehicle lidar, vehicle-mounted unmanned aerial vehicle detecting system and vehicle, through the transmission module that has super lens module with the vehicle-mounted unmanned aerial vehicle lidar affiliated vehicle around the light collimation that the laser instrument sent in the transmission module radiated, form the point cloud that surveys the target object, use super lens in vehicle-mounted unmanned aerial vehicle lidar's transmission module, under the circumstances of avoiding using mechanical rotary structure and MEMS based semi-solid state structure, just can make vehicle-mounted unmanned aerial vehicle lidar can survey vehicle road conditions information all around, ensure that the vehicle does not have the blind area in the driving process; moreover, the super lens has the advantages of being light, thin, simple, cheap and high in productivity, so that the vehicle-mounted unmanned aerial vehicle laser radar using the super lens module has the characteristics of small size (specification) and light weight.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Examples
Referring to the schematic structural diagram of a vehicle-mounted unmanned aerial vehicle laser radar shown in fig. 1, the present embodiment provides a vehicle-mounted unmanned aerial vehicle laser radar for detecting target objects appearing around a vehicle, the vehicle-mounted unmanned aerial vehicle laser radar includes: the device comprises a transmitting module and a receiving module.
The transmission module includes: a laser 100 and a superlens module.
The super-lens module is used for collimating light rays emitted by the laser and then radiating the collimated light rays to the periphery of a vehicle to which the vehicle-mounted unmanned aerial vehicle laser radar belongs to form point cloud for detecting a target object;
and the receiving module is used for receiving the echo signal reflected by the target object.
The laser adopts a single laser and can emit a laser beam.
The target object may be, but is not limited to: pedestrians, buildings, obstacles on the road where the vehicle is located, and other vehicles appear around the vehicle to which the vehicle-mounted unmanned aerial vehicle laser radar belongs.
The other vehicles may be, but are not limited to: the vehicle meeting with the vehicle to which the vehicle-mounted unmanned aerial vehicle laser radar belongs, and the vehicle running in the same direction of the vehicle to which the vehicle-mounted unmanned aerial vehicle laser radar belongs.
The superlens used in the superlens module is a layer of sub-wavelength artificial nanostructure film, and incident light can be modulated according to the nanostructure on the substrate. The nano structure comprises a full-dielectric or plasma nano antenna, and the phase, amplitude, polarization and other characteristics of light can be directly adjusted and controlled. The nanostructure can adopt all-dielectric structural units, has high transmittance in a visible light band, and can be selected from the following materials, but not limited to: titanium oxide, silicon nitride, fused silica, aluminum oxide, gallium nitride, gallium phosphide, and hydrogenated amorphous silicon. The nano structures are arranged on the substrate in an array mode, the cross section of the substrate of the super lens is in a regular hexagon and/or a square and/or a fan shape, and the nano structures are arranged at the center position of each substrate or the center position and the vertex position of each substrate respectively. See fig. 2 for an arrangement of regular hexagonal, square and fan shaped nanostructures on a substrate in a superlens. The working waveband of the super lens is an infrared waveband. The nanostructures may be filled with air or other transparent filling material, and it should be noted that the absolute value of the difference between the refractive index of the filling material and the refractive index of the nanostructures is greater than or equal to 0.5. The nano-structure can be a polarization-dependent structure, such as a nano-fin, a nano-elliptic cylinder and the like, and the structure exerts a geometric phase on incident light; the nanostructures may also be polarization-independent structures, such as nanocylinders and nanosquares, which impart a propagation phase to incident light.
In one embodiment, the superlens module includes: a collimating metalens 102 and a point cloud generator 104.
The light emitted by the laser is collimated by the collimating super lens and then enters the point cloud generator, and the point cloud generator radiates the collimated light to the periphery of the vehicle to form point cloud for detecting a target object.
Alternatively, the function of the point cloud generator can be realized by using a superlens.
The specific way in which the point cloud generator radiates collimated light rays around the vehicle to form a point cloud for detecting a target object is outside the scope of the discussion of the present application and may be considered as prior art.
In one embodiment, the superlens module includes: a multiplexing superlens (not shown in the figure).
A light collimation unit is arranged on one side of the multiplexing super lens close to the laser; and a point cloud generating unit is arranged on one side of the multiplexing super lens, which is far away from the laser.
That is, both sides of the multiplexed superlens have nano-structures; the nano-mechanism on one side can be used for light collimation, and the nano-mechanism on the other side can be used for generating detection point cloud by utilizing incident light.
The light emitted by the laser is collimated by the light collimation unit of the multiplexing super lens and then enters the point cloud generating unit of the multiplexing super lens, and the point cloud generator radiates the collimated light to the periphery of the vehicle to form point cloud for detecting a target object.
In one embodiment, the superlens module includes: a compound superlens (not shown).
The compound super lens collimates the light emitted by the laser, and simultaneously radiates the collimated light to the periphery of the vehicle to form a point cloud for detecting a target object.
That is, only one side of the compound superlens is provided with a nano-structure, the nano-structure can not only collimate light, but also can generate point cloud by using light, and then the modulation phase of the compound superlens to incident light satisfies the following formula:
wherein, delta represents the modulation phase of the composite superlens to the incident light;
the modulation phase representing the collimation of the incident light by the composite superlens;
representing the modulation phase of the point cloud produced by the compound superlens using the incident light. Namely, the modulation phase of the composite superlens to the incident light not only meets the modulation phase for collimation, but also meets the modulation phase for generating point cloud.
In order to receive the echo signal reflected by the target object, referring to the schematic structural diagram of the receiving module shown in fig. 3, the receiving module includes: a converging superlens array 106 and a photodetector array 108.
The photodetector array, comprising: a plurality of photosensors arranged in parallel; the converging superlens array comprising: a plurality of converging superlenses arranged in parallel.
And the echo signals reflected by the target are incident on each of the plurality of converging super lenses, and the converging super lenses respectively converge the incident echo signals on the photoelectric sensors which are arranged in the plurality of photoelectric sensors and opposite to the super lenses.
And the photoelectric sensor converts the incident echo signal into an electric signal.
The photoelectric sensor performs photoelectric conversion on the echo signal serving as an optical signal into an electrical signal, and the specific process is the prior art and is not described herein again.
The photodetector can adopt but is not limited to: avalanche Photodiodes (APD) or Single Photon Avalanche photodiodes (SPAD).
Further, for the parasitic light in the filtering echo signal, improve detection efficiency, in the on-vehicle unmanned aerial vehicle laser radar that this embodiment provided, the receiving module still includes: a filter mask 110.
The filter cover covers the converging super lens array.
The filter cover can transmit signals with preset wavelengths and can reflect signals with other wavelengths except the signals with the preset wavelengths.
In one embodiment, in the case that the signal with the preset wavelength is an echo signal with the preset wavelength, the echo signal with the preset wavelength transmitted by the filter mask is incident on the converging super lens array, and then is converged on the photodetector array by the converging super lens array.
Here, the echo signal having the predetermined wavelength coincides with the wavelength of the light emitted from the laser.
In one embodiment, when the light emitted by the laser is infrared light, the echo signal having the preset wavelength may be a light signal in a wavelength band in which the infrared light is located.
Preferably, the filter mask can adopt a narrow-band filter. Of course, any optical device capable of implementing a narrow-band filtering function in the prior art may be used as the filter mask, and details thereof are not repeated here.
If the specification and weight of the receiving module are not considered, the converging super lens array can be replaced by a micro lens array.
Compared with the traditional lens, the super lens has the advantages of being light, thin, simple, cheap and high in productivity.
The on-vehicle unmanned aerial vehicle laser radar who uses super lens that this embodiment provided, it is small, light in weight has alleviateed on-vehicle unmanned aerial vehicle's heavy burden, increases its duration. Tradition installs at vehicle the place ahead on-vehicle laser radar, can only survey car the place ahead road conditions, and the extra laser radar will be added in the detection that will realize both sides or rear, and the on-vehicle unmanned aerial vehicle laser radar that this embodiment provided uses just can be right the road conditions all around of vehicle are surveyed, have realized all-round detection, have eliminated the blind area of vehicle driving in-process.
The embodiment further provides a vehicle-mounted unmanned aerial vehicle detection system, which is used for detecting target objects and illumination appearing around a vehicle; referring to the schematic structural diagram of the lighting module shown in fig. 4, the vehicle-mounted unmanned aerial vehicle detection system provided by this embodiment includes: illumination module and foretell vehicle-mounted unmanned aerial vehicle laser radar.
The lighting module includes: a light source 112 and a tunable superlens array 114.
The tunable superlens array, comprising: a plurality of tunable superlenses arranged side-by-side. Wherein, both sides of the adjustable super lens contain electrodes, and the substrate of the adjustable super lens is made of an electric control phase change material.
The light source is located at a focal plane of the adjustable superlens array.
And each adjustable super lens in the plurality of adjustable super lenses respectively modulates the emergent direction of the light rays emitted by the light source.
When each adjustable super lens receives input voltage, each adjustable super lens performs phase modulation on the emergent direction of light rays emitted by the light source, and the light rays after phase modulation can irradiate according to the direction deviating from the emergent direction. Thereby completing the modulation of the emergent direction of the light emitted by the light source.
The specific process that each adjustable superlens performs phase modulation on the emergent direction of the light emitted by the light source, and the light after the phase modulation can irradiate according to the direction deviating from the emergent direction is the prior art, and is not described herein again. And is not within the scope of the present discussion.
Alternatively, the region deviated from the position of the target object may be a region near the target object.
And when the adjustable super lenses do not receive the input voltage, the adjustable super lenses respectively collimate the light rays emitted by the light source.
That is, when the laser radar does not detect a vehicle coming ahead, each adjustable superlens in the adjustable superlens array collimates the light so that the collimated light illuminates the road ahead.
By way of example, the following example is used to describe the specific implementation of the lighting module during a meeting as follows: when there is the vehicle and the affiliated vehicle meeting of on-vehicle unmanned aerial vehicle detecting system, in order to make the light that lighting module sent shine on the vehicle meeting on driver's eyes and make on-vehicle unmanned aerial vehicle lidar can detect the vehicle meeting in advance, lighting module sends light to the light source and carries out corresponding phase modulation, prevents that the illumination zone from being less than above-mentioned laser radar detection range. When there is the vehicle that meets, vehicle-mounted unmanned aerial vehicle laser radar can confirm the position of the vehicle that meets according to the echo signal of the vehicle that meets, and adjustable super lens can arouse the vehicle position of radar feedback according to vehicle-mounted unmanned aerial vehicle, carry out phase modulation with the emergent ray of the adjustable super lens of this vehicle position of directive, make originally should launch the light that is on the vehicle position and take place to deflect, make the vehicle that meets be in no illumination zone, and the light after the deflection shines on ground (being the regional near above-mentioned target object), the diffuse reflection light that shines the subaerial light production makes the driver of the affiliated vehicle of vehicle-mounted unmanned aerial vehicle detecting system can observe the vehicle that meets. And in the meeting process, the electrode adjusts the modulation phase of the adjustable superlens on the light emitted by the light source in real time according to the position of the meeting vehicle, so that the meeting vehicle is always in a non-illumination area until the meeting is finished.
Illumination module based on adjustable super lens can be according to the irradiation region of the position adjustment light of the meeting vehicle of meeting direction, makes the meeting vehicle be in no illumination region, can not disturb the driver of meeting vehicle when guaranteeing the driver's of the vehicle-mounted unmanned aerial vehicle detecting system affiliated vehicle field of vision of going, has ensured both sides' driving safety.
Further, the tunable superlens may be implemented with other phase adjusting devices, such as: a Spatial Light Modulator (SLM) or a Digital Micromirror (DMD).
The present embodiment also proposes a vehicle including: foretell vehicle-mounted unmanned aerial vehicle detecting system.
When the vehicle that uses on-vehicle unmanned aerial vehicle detection system goes at the road conditions complicacy, rugged, the accident is many, when on crowded road, on-vehicle unmanned aerial vehicle arrives a take-off the take-off of vehicle top to the take-off take the altitude, on-vehicle unmanned aerial vehicle is located the automobile top, on-vehicle unmanned aerial vehicle laser radar among the on-vehicle unmanned aerial vehicle detection system who carries through on-vehicle unmanned aerial vehicle self surveys all around the road conditions and discerns the target object, and give the car through communication module real-time feedback. Simultaneously, vehicle-mounted unmanned aerial vehicle laser radar gives the traffic direction road condition information back to the lighting module, if detect there is the vehicle of meeting, then through the adjustable phase change outgoing light's of adjustable super lens in the adjustable super lens array outgoing direction of modulation after the vehicle of meeting gets into the lighting module's illumination zone, make the vehicle of meeting of the vehicle that uses vehicle-mounted unmanned aerial vehicle detecting system be in no illumination region until accomplishing the meeting always.
Further, local sharing can be realized through the road condition information accessible communication module that vehicle-mounted unmanned aerial vehicle detection system acquireed to the vehicle that uses vehicle-mounted unmanned aerial vehicle detection system, and the road condition information that this vehicle-mounted unmanned aerial vehicle detection system detected can all be obtained to the vehicle in certain extent to the driver who obtains this road condition information selects the road trip of better road conditions, avoids crowded road, improves the current efficiency of vehicle.
The adjustable superlens, the compound superlens, the multiplexing superlens, the collimating superlens and the point cloud generator used in this embodiment are all different types of superlenses. Then, the adjustable superlens, the compound superlens, the multiplexing superlens, the collimating superlens, and the point cloud generator respectively include: a substrate and a plurality of nanostructures disposed on the substrate.
The superlenses, which are different in size, period, and selected material, can be used as the adjustable superlens, the compound superlens, the multiplexing superlens, the collimating superlens, or the point cloud generator only when the qiucha respectively satisfies the functions realized by the adjustable superlens, the compound superlens, the multiplexing superlens, the collimating superlens, and the point cloud generator.
The software content involved in the detection and illumination processes involved in this embodiment is not within the scope of the discussion of this embodiment and is prior art.
In summary, the present embodiment provides a vehicle-mounted drone lidar, a vehicle-mounted drone detection system and a vehicle, a light emitted by a laser in a transmitting module is collimated by a transmitting module having a superlens module and then radiated to the periphery of a vehicle to which the vehicle-mounted drone lidar belongs, a point cloud for detecting a target object is formed, compared with a manner in which a mechanical rotating structure or a MEMS-based semi-solid structure is used by a vehicle-mounted drone lidar in the related art to realize wide-angle detection, a superlens is applied to the transmitting module of the vehicle-mounted drone lidar, under the condition that the mechanical rotating structure and the MEMS-based semi-solid structure are avoided, the vehicle-mounted drone lidar can detect road condition information around the vehicle, and it is ensured that the vehicle does not have a blind area in the driving process; moreover, the superlens has the advantages of being light, thin, simple, cheap and high in productivity, so that the vehicle-mounted unmanned aerial vehicle laser radar using the superlens module has the characteristics of small size (specification) and light weight, the purposes of miniaturization and light weight of the vehicle-mounted unmanned aerial vehicle are achieved, the load of the vehicle-mounted unmanned aerial vehicle is reduced, and the cruising ability of the vehicle-mounted unmanned aerial vehicle is improved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. The utility model provides an on-vehicle unmanned aerial vehicle lidar for detect the target object that appears around the vehicle, a serial communication port, on-vehicle unmanned aerial vehicle lidar includes: the device comprises a transmitting module and a receiving module;
the transmission module includes: a laser and a superlens module;
the super-lens module is used for collimating light rays emitted by the laser and then radiating the collimated light rays to the periphery of a vehicle to which the vehicle-mounted unmanned aerial vehicle laser radar belongs to form point cloud for detecting a target object;
and the receiving module is used for receiving the echo signal reflected by the target object.
2. The vehicle drone lidar of claim 1, wherein the superlens module comprises: a collimating metalens and a point cloud generator;
the light emitted by the laser is collimated by the collimating super lens and then enters the point cloud generator, and the point cloud generator radiates the collimated light to the periphery of the vehicle to form point cloud for detecting a target object.
3. The vehicle-mounted drone lidar of claim 1, wherein the superlens module comprises: multiplexing the superlens;
a light collimation unit is arranged on one side of the multiplexing super lens close to the laser; a point cloud generating unit is arranged on one side of the multiplexing super lens, which is far away from the laser;
the light emitted by the laser is collimated by the light collimation unit of the multiplexing super lens and then enters the point cloud generating unit of the multiplexing super lens, and the point cloud generating unit radiates the collimated light to the periphery of the vehicle to form point cloud for detecting a target object.
4. The vehicle-mounted drone lidar of claim 1, wherein the superlens module comprises: a compound superlens;
the compound super lens collimates the light emitted by the laser, and simultaneously radiates the collimated light to the periphery of the vehicle to form point cloud for detecting a target object.
5. The vehicle-mounted UAV lidar according to claim 4, wherein the modulation phase of the composite superlens on the incident light satisfies the following formula:
wherein, delta represents the modulation phase of the composite superlens to the incident light;
the modulation phase representing the collimation of the incident light by the composite superlens;
representing the modulation phase of the point cloud produced by the compound superlens using the incident light.
6. The vehicle-mounted drone lidar according to claim 1, wherein the receive module comprises: a converging superlens array and a photodetector array;
the photodetector array, comprising: a plurality of photosensors arranged in parallel; the converging superlens array comprising: a plurality of converging superlenses arranged in parallel;
the echo signals reflected by the target are incident on each of the plurality of converging super lenses, and the converging super lenses respectively converge the incident echo signals on photoelectric sensors which are arranged in the plurality of photoelectric sensors and opposite to the super lenses;
and the photoelectric sensor converts the incident echo signal into an electric signal.
7. The vehicle-mounted UAV lidar according to claim 6, wherein the receiving module further comprises: a light filtering cover;
the filter mask covers the converging super lens array;
the filter cover can transmit signals with preset wavelengths and can reflect signals with other wavelengths except the signals with the preset wavelengths.
8. A vehicle-mounted unmanned aerial vehicle detection system is used for detecting target objects and illumination appearing around a vehicle; its characterized in that, on-vehicle unmanned aerial vehicle detecting system includes: a lighting module and the vehicle-mounted drone lidar of any of claims 1 to 7;
the lighting module includes: a light source and a tunable superlens array;
the light source is positioned on a focal plane of the adjustable super lens array;
the tunable superlens array, comprising: a plurality of tunable superlenses arranged side-by-side;
and each adjustable super lens in the plurality of adjustable super lenses respectively modulates the emergent direction of the light rays emitted by the light source.
9. The vehicle-mounted unmanned aerial vehicle detection system of claim 8, wherein each adjustable superlens collimates light emitted by the light source.
10. The vehicle-mounted unmanned aerial vehicle detection system of claim 8, wherein the adjustable superlens, the compound superlens, the multiplexing superlens, the collimating superlens, and the point cloud generator each comprise: a substrate and a plurality of nanostructures disposed on the substrate.
11. A vehicle, characterized by comprising: an on-board drone detection system according to any one of the preceding claims 8 to 10.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11927769B2 (en) | 2022-03-31 | 2024-03-12 | Metalenz, Inc. | Polarization sorting metasurface microlens array device |
| US11978752B2 (en) | 2019-07-26 | 2024-05-07 | Metalenz, Inc. | Aperture-metasurface and hybrid refractive-metasurface imaging systems |
| US11988844B2 (en) | 2017-08-31 | 2024-05-21 | Metalenz, Inc. | Transmissive metasurface lens integration |
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2022
- 2022-06-22 CN CN202221568631.XU patent/CN217981857U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11988844B2 (en) | 2017-08-31 | 2024-05-21 | Metalenz, Inc. | Transmissive metasurface lens integration |
| US11978752B2 (en) | 2019-07-26 | 2024-05-07 | Metalenz, Inc. | Aperture-metasurface and hybrid refractive-metasurface imaging systems |
| US11927769B2 (en) | 2022-03-31 | 2024-03-12 | Metalenz, Inc. | Polarization sorting metasurface microlens array device |
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