CN211402966U - Three-dimensional aerial imaging device based on light beam intersection ionized air - Google Patents
Three-dimensional aerial imaging device based on light beam intersection ionized air Download PDFInfo
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- CN211402966U CN211402966U CN202020099628.2U CN202020099628U CN211402966U CN 211402966 U CN211402966 U CN 211402966U CN 202020099628 U CN202020099628 U CN 202020099628U CN 211402966 U CN211402966 U CN 211402966U
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Abstract
The utility model discloses a three-dimensional aerial image device based on light beam ionized air that crosses, include: the pulse laser comprises a pulse seed source, a light splitting coupler, a plurality of galvanometer assemblies, a plurality of pulse amplification modules and a plurality of time delay lines, wherein the light splitting coupler is arranged on a line of a pulse light beam and used for splitting the pulse light beam into a plurality of sub light beams, and the plurality of pulse amplification modules, the plurality of time delay lines and the plurality of galvanometer assemblies are respectively arranged on the lines of the plurality of sub light beams in a one-to-one correspondence mode. Adopt the beam splitting coupler to divide into a plurality of sub-beams with pulse beam, a plurality of sub-beams are through crossing after amplification processing, time delay processing and turn to the processing, because a plurality of sub-beams are divided into by same pulse beam, can solve the pulse time synchronization problem between the sub-beam from this, utilize a plurality of mirror components that shake to control a plurality of sub-beams and carry out the ionization that crosses, can promote the regional scope of sub-beam junction from this, and then can enlarge three-dimensional aerial imaging device's imaging range.
Description
Technical Field
The utility model belongs to the technical field of the air display and specifically relates to a three-dimensional aerial image device based on light beam ionization air that crosses.
Background
The existing air ionization systems are classified into a flat display air ionization system and a stereoscopic display air ionization system. The plane display air ionization system comprises a high-power pulse light source, a light beam regulation and control module and an air ionization module, wherein the light beam regulation and control module consists of a two-dimensional high-speed scanning galvanometer and a flat-field focusing lens. The galvanometer system is formed by combining galvanometers in the x direction and the y direction, and can enable a reflected beam to scan in a plane; the flat field focusing lens is used for forming a focused light spot with uniform size in the whole plane of the light beam. For the air ionization system for stereoscopic display, a zoom lens is added on the basis of a plane display system. The zoom lens changes the position of the ionization region in the z direction by changing the focal length of the lens, and can control the ionization point to change in a three-dimensional space by combining the vibrating mirrors in the x direction and the y direction, so that a three-dimensional picture is formed. In order to increase the pixels of a display picture, a Spatial Light Modulator (SLM) is added in a light beam regulation system, and the purpose of light wave modulation is achieved by modulating parameters such as amplitude, phase and polarization state of a light field. The light field is modulated by the SLM through the output light beam of the pulse light source, and a plurality of focusing points are formed after the light field passes through the zooming system, so that pixels of a display picture are increased.
In the existing three-dimensional display air ionization system, a high-power pulse light source outputs laser pulses, the laser pulses are modulated into a light field by an SLM (spatial light modulation), then the laser pulses are reflected to a galvanometer system to adjust the emergent direction of the laser pulses, light beams penetrate through a zoom lens and a flat field focusing lens and then are focused to a specified point in an air ionization area, and finally the high-power laser ionizes air molecules to form luminous spots. And the computer actively controls the SLM, the galvanometer system and the zoom lens, and adjusts the position of the laser ionization point and the pixels of the display picture according to the picture to be displayed.
Due to the limitation of the deflection angle of the galvanometer in the galvanometer system, the size limitation of a zoom lens and other factors, the display picture range of the air ionization system is smaller, and the air display requirement of a larger picture cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a three-dimensional aerial image device based on light beam intersection ionization air falls into multichannel sub-beam with pulsed light source and intersects in the air, solves the synchronous problem between the meeting point department pulse to produce air ionization in light beam meeting point department, solved the less technological problem of air ionization system display screen scope that leads to by various factor restrictions in the display system, show the regional scope improvement with air ionization.
According to the utility model discloses three-dimensional aerial image device based on light beam ionization air that intersects, include: the pulse seed source generates a pulse beam, the optical splitter is arranged on a line of the pulse beam and is used for splitting the pulse beam into a plurality of sub-beams, the plurality of optical splitter components are arranged on the plurality of sub-beam lines in a one-to-one correspondence manner and are used for changing the irradiation direction of the sub-beams in the horizontal or vertical direction so as to enable the plurality of sub-beams to be converged at a convergence point and enable air to be ionized to form a holographic real image, the plurality of pulse amplification modules are arranged on the line of the plurality of sub-beams in a one-to-one correspondence manner and are used for amplifying the pulses of the sub-beams, the pulse amplification modules are positioned between the optical splitter and the optical splitter, and the plurality of time delay lines are arranged on the line of the plurality of sub-beams in a one-to-one correspondence manner, and the time delay line is positioned between the pulse amplification module and the galvanometer component and used for adjusting the pulse time position of the sub-beams so that a plurality of pulse times coincide when the sub-beams are converged at a junction point.
According to the utility model discloses three-dimensional aerial image device based on beam intersection ionized air adopts the beam split coupler to divide into a plurality of sub-beams with pulse beam, and a plurality of sub-beams are through enlargeing to handle, time delay handles and turn to and handle the back and intersect, because a plurality of sub-beams are divided into by same pulse beam, can solve the pulse time synchronization problem between the sub-beam from this. In addition, a plurality of sub-beams are controlled by a plurality of galvanometer components to be subjected to intersection ionization, so that the area range of the intersection point of the sub-beams can be enlarged, and the imaging range of the three-dimensional aerial imaging device can be enlarged.
According to the utility model discloses an embodiment, three-dimensional aerial image device still includes: the pulse compression devices are arranged on the lines of the sub-beams in a one-to-one correspondence mode, the pulse compression devices are located between the pulse amplification module and the time delay line, and the pulse compression devices are used for compressing the pulse width of the sub-beams to improve the pulse light peak power of the sub-beams.
According to the utility model discloses an embodiment, three-dimensional aerial image device still includes: the pulse beam collimation devices are arranged on lines of the sub-beams in a one-to-one correspondence mode, the beam collimation devices are located between the pulse compression devices and the time delay lines, and the beam collimation devices are used for adjusting the sub-beams into collimated beams meeting ionization threshold values.
According to the utility model discloses an embodiment, three-dimensional aerial image device still includes: the water-cooling radiator is connected with the pulse seed source, the light splitting coupler, the pulse amplification module, the pulse compression device and the light beam collimation device and used for dissipating heat of the pulse seed source, the light splitting coupler, the pulse amplification module, the pulse compression device and the light beam collimation device.
According to the utility model discloses an embodiment, three-dimensional aerial image device still includes: pulsed light source casing, temperature sensor and controller, the pulse seed source the beam split coupler pulse amplification module pulse compression device with light beam collimation device all establishes in the pulsed light source casing, be formed with a plurality of confessions on the pulsed light source casing the light-emitting window that the sub-beam passed, temperature sensor establishes be used for detecting in the pulsed light source casing the inside temperature of pulsed light source casing, controller signal connection temperature sensor with water-cooling radiator is used for control the temperature in the pulsed light source casing.
According to an embodiment of the present invention, the controller signal is connected to the pulse seed source, the optical splitter coupler, the pulse amplification module, the pulse compression device and the beam collimation device to control the output parameters of the sub-beam.
According to the utility model discloses an embodiment, the pulse amplification module includes: the pre-amplification module is positioned between the main amplification module and the light splitting coupler.
According to an embodiment of the present invention, the pulse width of the plurality of sub-beams is 10fs to 100ns, the pulse energy is 10 μ J to 100mJ, and the pulse repetition frequency is 50Hz to 10 MHz.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
the above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is according to the utility model discloses an aerial image device of three-dimensional based on beam intersection ionized air's structure schematic diagram.
Reference numerals:
1-1: a pulsed seed source; 1-2: a light splitting coupler; 1-3: a first pulse amplification module; 1-4: a second pulse amplification module; 1-5: a first pulse compression device; 1-6: a second pulse compression device; 1 to 7; a first beam collimating device; 1-8: a second beam collimating device; 2: a time delay line; 2-1: a first time delay line; 2-2: a second time delay line; 3: a galvanometer component; 3-1: a first galvanometer component; 3-2: a second galvanometer component; 4: a holographic real image; 5: a controller; 6: a water-cooled radiator; 7: and a calculator.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following describes a three-dimensional aerial imaging device based on beam intersection ionized air according to an embodiment of the present invention with reference to fig. 1.
As shown in fig. 1, according to the utility model discloses three-dimensional aerial image device based on beam intersection ionized air, include: the pulse seed source 1-1, the optical splitter 1-2, a plurality of galvanometer components 3, a plurality of pulse amplification modules and a plurality of time delay lines 2.
Specifically, the pulsed seed source 1-1 can generate a pulsed light beam, the optical splitter 1-2 is disposed on the line of the pulsed light beam and adjacent to the pulsed seed source 1-1 for splitting the pulsed light beam into a plurality of sub-beams, the pulsed light beam is split into a plurality of sub-beams by irradiating the optical splitter 1-2, wherein the energy of the plurality of sub-beams can be equally distributed, and in general, the pulsed light beam can be split into two sub-beams.
Wherein, a plurality of the galvanometer components 3 are arranged on a plurality of the sub-beam lines in a one-to-one correspondence manner, and are used for changing the irradiation direction of the sub-beams in the horizontal or vertical direction so as to enable the plurality of the sub-beams to be converged at a junction and enable air to be ionized to form a holographic real image 4, a plurality of the pulse amplification modules are arranged on a plurality of the sub-beam lines in a one-to-one correspondence manner and are used for amplifying the pulses of the sub-beams, the pulse amplification module is positioned between the galvanometer component 3 and the optical splitter coupler 1-2, the plurality of time delay lines 2 are correspondingly arranged on the lines of the plurality of sub-beams one by one, and the time delay line 2 is positioned between the pulse amplification module and the galvanometer component 3, and the time delay line 2 is used for adjusting the pulse time position of the sub-beams so that a plurality of pulse times coincide when the sub-beams meet at a meeting point.
As shown in fig. 1, taking two sub-beams as an example, the three-dimensional aerial imaging device includes: the pulse amplification device comprises a pulse seed source 1-1, a light splitting coupler 1-2, two galvanometer components 3, two pulse amplification modules and two time delay lines 2, wherein the two galvanometer components 3 are respectively a first galvanometer component 3-1 and a second galvanometer component 3-2, the two pulse amplification modules are respectively a first pulse amplification module 1-3 and a second pulse amplification module 1-4, and the two time delay lines 2 are respectively a first time delay line 2-1 and a second time delay line 2-2.
A pulse beam generated by a pulse seed source 1-1 passes through a light splitting coupler 1-2 to form two sub-beams which are a first sub-beam and a second sub-beam respectively, a first galvanometer component 3-1, a first pulse amplification module 1-3 and a first time delay line 2-1 are arranged on the first sub-beam, and a second galvanometer component 3-2, a second pulse amplification module 1-4 and a second time delay line 2-2 are arranged on the second sub-beam.
That is to say, in the advancing direction of each sub-beam, a pulse amplification module, a time delay line 2 and a galvanometer component 3 are sequentially arranged, the energy of the sub-beam split by the beam splitter 1-2 is relatively low, after passing through the pulse amplification module, the energy of the sub-beam is increased, then passing through the time delay line 2, the time synchronization of a plurality of pulses in the plurality of sub-beams is ensured, after the sub-beam enters the galvanometer component 3 to change the irradiation direction, the plurality of sub-beams are converged in the air, the energy of the converged sub-beams is converged to reach the threshold value of air ionization, and the plurality of sub-beams ionize the air at the convergence point to form a holographic real image 4.
According to the utility model discloses three-dimensional aerial image device based on beam intersection ionized air adopts beam split coupler 1-2 to divide into a plurality of sub-beams with pulse beam, and a plurality of sub-beams are through enlargeing to handle, time delay handles and turn to and handle the back and intersect, because a plurality of sub-beams are divided into by same pulse beam, can solve the time synchronization problem between a plurality of pulses in the sub-beam from this. In addition, a plurality of sub-beams are controlled by the plurality of galvanometer components 3 to be subjected to intersection ionization, so that the area range of the intersection point of the sub-beams can be enlarged, and the imaging range of the three-dimensional aerial imaging device can be enlarged.
In some embodiments, as shown in fig. 1, the three-dimensional aerial imaging device further includes a plurality of pulse compression devices, the pulse compression devices are disposed in a line of the plurality of sub-beams in a one-to-one correspondence, and the pulse compression device is located between the pulse amplification module and the time delay line 2, that is, a pulse compression device is disposed on each sub-beam, and in the sub-beam advancing direction, the pulse compression device is disposed between the pulse amplification module and the time delay line 2, and the pulse compression device is configured to compress the pulse width of the sub-beam to increase the peak power of the pulse light of the sub-beam.
As shown in fig. 1, there are two pulse compression devices, namely a first pulse compression device 1-5 and a second pulse compression device 1-6, the first pulse compression device 1-5 is disposed on the first sub-beam, and the second pulse compression device 1-6 is disposed on the second sub-beam. Through set up pulse compression device on the beamlet, can promote the pulse light peak power of beamlet, and then can promote the laser power density of beamlet junction, be favorable to reducing the ionization threshold value, promote the formation of image effect.
In some embodiments, as shown in fig. 1, the three-dimensional aerial imaging device further includes a plurality of beam collimating devices, the plurality of pulse beam collimating devices are disposed in a line of the plurality of sub-beams in a one-to-one correspondence, and the beam collimating device is disposed between the pulse compressing device and the time delay line 2, that is, a beam collimating device is disposed on each sub-beam, and in a direction in which the sub-beams advance, the beam collimating device is disposed between the pulse compressing device on the sub-beam and the time delay line 2, and the beam collimating device can adjust the sub-beams into collimated beams meeting an ionization threshold.
The two beam collimation devices are respectively a first beam collimation device 1-7 and a second beam collimation device 1-8, the first beam collimation device 1-7 is arranged on the first sub-beam, and the second beam collimation device 1-8 is arranged on the second sub-beam. Through set up beam collimating device on the beamlet, can utilize beam collimating device to adjust the beam parameter of beamlet to guarantee that the beamlet satisfies the requirement of ionization threshold value, and then can promote the effect of ionization formation of image.
According to the utility model discloses an embodiment, three-dimensional aerial image device still includes water-cooling radiator 6, water-cooling radiator 6 is connected pulse seed source 1-1 the spectral coupler 1-2 the pulse amplification module pulse compression device with beam collimation device is used for doing pulse seed source 1-1 the spectral coupler 1-2 the pulse amplification module pulse compression device with beam collimation device dispels the heat.
Because the pulse seed source 1-1 generates a high-energy pulse light source and the light beam sequentially passes through the light splitting coupler 1-2, the pulse amplification module, the pulse compression device and the light beam collimation device, the pulse seed source 1-1, the optical splitter coupler 1-2, the pulse amplification module, the pulse compression device and the light beam collimation device can generate a large amount of heat in the working process, and by arranging the water-cooling radiator 6, the pulse seed source 1-1, the optical splitter 1-2, the pulse amplification module, the pulse compression device and the beam collimation device can be cooled, and the damage to equipment caused by excessive concentration of heat on the pulse seed source 1-1, the optical splitter 1-2, the pulse amplification module, the pulse compression device and the beam collimation device is prevented. In addition, the water-cooling radiator 6 can adjust the heat dissipation area through the flow direction of adjusting the water route, and controllability is stronger, can dispel the heat to a plurality of equipment simultaneously, and water-cooling is with low costs moreover, and is effectual, can satisfy three-dimensional aerial imaging device's heat dissipation requirement.
According to the utility model discloses an embodiment, three-dimensional aerial image device still includes: a pulsed light source housing, a temperature sensor and a controller 5.
The pulse seed source 1-1, the light splitting coupler 1-2, the pulse amplification module, the pulse compression device and the light beam collimation device are all arranged in the pulse light source shell, a plurality of light outlets for the sub light beams to pass through are formed in the pulse light source shell, namely, the pulse seed source 1-1, the light splitting coupler 1-2, the pulse amplification module, the pulse compression device and the light beam collimation device are sleeved with a pulse light source shell, the pulse seed source 1-1, the light splitting coupler 1-2, the pulse amplification module, the pulse compression device and the light beam collimation device are covered by the pulse light source shell, and the light outlets are formed in the pulse light source shell, so that the pulse seed source 1-1, the pulse compression device and the light beam collimation device can be protected by the pulse light source shell, The beam splitting coupler 1-2, the pulse amplification module, the pulse compression device and the light beam collimation device are not damaged, and the structure is simple, so that the normal transmission of light beams cannot be influenced.
Wherein, temperature sensor establishes be used for detecting in the pulsed light source casing the inside temperature of pulsed light source casing, 5 signal connection of controller temperature sensor with water-cooling radiator 6 is used for control temperature in the pulsed light source casing.
Through set up temperature sensor in the pulse light source casing, can utilize temperature sensor to detect, the temperature of pulse light source casing then feeds back temperature information to controller 5, and controller 5 control water-cooling radiator 6 dispels the heat to the equipment in the pulse light source casing, provides a stable good operational environment for the equipment in the pulse light source casing.
According to an embodiment of the present invention, the controller 5 is connected to the pulse seed source 1-1, the optical splitter 1-2, the pulse amplification module, the pulse compression device and the beam collimation device via signals to control the output parameters of the sub-beams. That is to say, the controller 5 can also control the pulse seed source 1-1, the optical splitter 1-2, the pulse amplification module, the pulse compression device and the beam collimation device, and adjust the output parameters of the sub-beams by controlling the working states of the pulse seed source 1-1, the optical splitter 1-2, the pulse amplification module, the pulse compression device and the beam collimation device, so as to ensure that the sub-beams meet the requirements of ionization imaging.
The controller 5 can also be in signal connection with the galvanometer component 3, the computer transmits a control program to the controller 5, and the controller 5 controls the galvanometer component 3 to adjust the transmission direction of each sub-beam, so that the sub-beams are converged at a specified position and ionize air to form a holographic real image 4.
According to the utility model discloses an embodiment, the pulse amplification module includes: the pre-amplification module is positioned between the main amplification module and the optical splitting coupler 1-2. That is to say, the pulse amplification module comprises pre-amplification module and main amplification module, and the amplification effect of pulse amplification module to the sub-beam can be promoted through pre-amplification module earlier, then through main amplification module.
According to an embodiment of the present invention, the pulse width of the plurality of sub-beams is 10fs to 100ns, the pulse energy is 10 μ J to 100mJ, and the pulse repetition frequency is 50Hz to 10 MHz.
Other constructions and operations according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A three-dimensional aerial imaging device based on beam intersection ionized air, comprising:
a pulsed seed source that produces a pulsed light beam;
the optical splitter coupler is arranged on a line of the pulse light beam and is used for splitting the pulse light beam into a plurality of sub-light beams;
the galvanometer assemblies are arranged on the sub-beam lines in a one-to-one correspondence mode and used for changing the irradiation direction of the sub-beams in the horizontal or vertical direction so as to enable the sub-beams to be converged in the air and enable the air to be ionized to form a holographic real image;
the pulse amplification modules are arranged on the lines of the sub-beams in a one-to-one correspondence manner and used for amplifying the pulses of the sub-beams, and the pulse amplification modules are positioned between the galvanometer component and the optical splitting coupler;
the time delay lines are arranged on the lines of the sub-beams in a one-to-one correspondence mode and are positioned between the pulse amplification module and the galvanometer component, and the time delay lines are used for adjusting the pulse time positions of the sub-beams so that the pulse time of the sub-beams coincide when the sub-beams meet at the meeting point.
2. The three-dimensional airborne imaging apparatus based on beam-meeting ionized air of claim 1, further comprising:
the pulse compression devices are arranged on the lines of the sub-beams in a one-to-one correspondence mode, the pulse compression devices are located between the pulse amplification module and the time delay line, and the pulse compression devices are used for compressing the pulse width of the sub-beams to improve the pulse light peak power of the sub-beams.
3. The three-dimensional airborne imaging apparatus based on beam-meeting ionized air of claim 2, further comprising:
the plurality of beam collimation devices are arranged on the lines of the plurality of sub beams in a one-to-one correspondence mode, are positioned between the pulse compression device and the time delay line, and are used for adjusting the sub beams into collimated beams meeting ionization thresholds.
4. The three-dimensional airborne imaging apparatus based on beam-meeting ionized air of claim 3, further comprising:
the water-cooling radiator is connected with the pulse seed source, the light splitting coupler, the pulse amplification module, the pulse compression device and the light beam collimation device and used for dissipating heat of the pulse seed source, the light splitting coupler, the pulse amplification module, the pulse compression device and the light beam collimation device.
5. The three-dimensional airborne imaging apparatus based on beam-meeting ionized air of claim 4, further comprising:
the pulse seed source, the light splitting coupler, the pulse amplification module, the pulse compression device and the light beam collimation device are all arranged in the pulse light source shell, and a plurality of light outlets for the sub light beams to pass through are formed in the pulse light source shell;
the temperature sensor is arranged in the pulse light source shell and used for detecting the temperature inside the pulse light source shell;
and the controller is in signal connection with the temperature sensor and the water-cooling radiator and is used for controlling the temperature in the pulse light source shell.
6. The beam-intersection ionized-air based three-dimensional aerial imaging apparatus of claim 5, wherein the controller is in signal connection with the pulse seed source, the beam splitter coupler, the pulse amplification module, the pulse compression apparatus, and the beam collimation apparatus to control output parameters of the beamlets.
7. The beam-intersection ionized-air-based three-dimensional aerial imaging apparatus according to claim 1, wherein the pulse amplification module comprises: the pre-amplification module is positioned between the main amplification module and the light splitting coupler.
8. The three-dimensional aerial imaging device based on beam-meeting ionized air of claim 1, wherein the pulse width of the plurality of sub-beams is 10fs-100ns, the pulse energy is 10 μ J-100mJ, and the pulse repetition frequency is 50Hz-10 MHz.
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| CN202020099628.2U CN211402966U (en) | 2020-01-16 | 2020-01-16 | Three-dimensional aerial imaging device based on light beam intersection ionized air |
| PCT/CN2021/072067 WO2021143814A1 (en) | 2020-01-16 | 2021-01-15 | Three-dimensional aerial imaging device based on light beam intersection and air ionization |
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| CN202020099628.2U CN211402966U (en) | 2020-01-16 | 2020-01-16 | Three-dimensional aerial imaging device based on light beam intersection ionized air |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143814A1 (en) * | 2020-01-16 | 2021-07-22 | 安徽省东超科技有限公司 | Three-dimensional aerial imaging device based on light beam intersection and air ionization |
| CN113391461A (en) * | 2021-06-30 | 2021-09-14 | 宁波Gqy视讯股份有限公司 | Imaging method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143814A1 (en) * | 2020-01-16 | 2021-07-22 | 安徽省东超科技有限公司 | Three-dimensional aerial imaging device based on light beam intersection and air ionization |
| CN113391461A (en) * | 2021-06-30 | 2021-09-14 | 宁波Gqy视讯股份有限公司 | Imaging method and system |
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