CN109946944A - A kind of photophoresis trap optical projection system and method - Google Patents
A kind of photophoresis trap optical projection system and method Download PDFInfo
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- CN109946944A CN109946944A CN201910356363.1A CN201910356363A CN109946944A CN 109946944 A CN109946944 A CN 109946944A CN 201910356363 A CN201910356363 A CN 201910356363A CN 109946944 A CN109946944 A CN 109946944A
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- photophoresis
- trap
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Abstract
A kind of photophoresis trap optical projection system and method, the optical projection system include volume body image detachment device and multiple volume body image projectors, and the first 3D model is split as multiple 2nd 3D models and is sent to corresponding volume body image projector by volume body image detachment device；Each volume body image projector includes volume body image projection control, particle emission device, photophoresis trap control device and particle coloring means；The particle emission device in photophoresis trap without particle when by particle emission into photophoresis trap；The photophoresis trap control device controls the position of photophoresis trap and then controls the motion profile of particle；The particle coloring means are painted to particle, and final realize " stands " dummy object almost the same with the original in space.This programme can show continuous, large volume projection 3D model.
Description
Technical field
The present invention relates to virtual image technical fields, and in particular to a kind of photophoresis trap optical projection system and method.
Background technique
Hologram technology (or 3D imaging technique) is widely used in worldwide.But at present
These technologies still use the object image of medium (such as: interference of light screen, light film etc.) one 3 dimension of display of 2 dimensions.User can only
Image is observed in a specific observation position, the backlight portion of object can not be seen around the back side of image.
The modes such as such as high-speed rotating prism, stacking screen in the prior art, can be in a very small closed body (example
As a chest size space in) display object certain angle hologram.However these images have a drawback, i.e.,
Observer can not be allowed intuitively to finish watching the overall picture of object in space.
Summary of the invention
To solve the above problems, by utilization, " photophoresis is former the present invention provides a kind of photophoresis trap optical projection system and method
Reason " (little particle being suspended in the air when through laser irradiation can there is a phenomenon where migrations) is suspended by control in space
The position of particle is drawn out the medium for having volume and is carried out then by color laser transmitter to this volume picture
Color, it is final realize " stand " in space one with the original it is almost the same (volume picture may be subjected to the shadow of ambient windstream
As and have pico- deformation) dummy object.
The present invention adopts the following technical scheme that realization:
The first aspect of the present invention provides a kind of photophoresis trap optical projection system, comprising: volume body image detachment device and more
A volume body image projector；
First 3D model is split as multiple 2nd 3D models by the volume body image detachment device, and is sent to corresponding appearance
Product body image projector；The volume body image projector is by received 2nd 3D model projection in space where it；
Each volume body image projector includes volume body image projection control, particle emission device, photophoresis trap
Control device and particle coloring means；
When the particle emission device is used in photophoresis trap without particle by particle emission into the photophoresis trap；
The photophoresis trap control device is used to control the position of photophoresis trap and then controls the motion profile of particle；
The particle coloring means are used to paint to the particle in photophoresis trap；
The volume body image projection control connect and control the particle emission device, photophoresis trap control device and
Particle coloring means.
Further, the volume body image detachment device projects the first 3D model received according to the volume body image
The quantity and coordinate of instrument split into the 2nd equal 3D model of corresponding multiple volumes, and are sent to corresponding volume body image projection
Instrument.
Further, the particle emission device includes particle storage warehouse, particle emitter and rotation console；
The particle storage warehouse is connected to the top of the particle emitter, for supplementing grain for the particle emitter
Son；The rotation console is connected to the side of the particle emitter, for controlling the direction of the launch of the particle emitter；
After the particle emission device receives the signal of the volume body image projection control transmitting particle, described in alignment
The initial position of photophoresis trap emits particle.
Further, the photophoresis trap control device includes two laser emitters；
After the photophoresis trap control device receives the signal that the volume body image projection control issues, pass through control
The power and bit of two laser emitters is set to control the position of photophoresis trap.
Further, the laser emitter includes laser beam emitting head, connecting rod, XY axis Rotation Controllers and the rotation of XZ axis
Controller；The XY axis Rotation Controllers is connected to the laser beam emitting head, and the XZ axis Rotation Controllers is connected by connecting rod
It is connected to the XY axis Rotation Controllers.
Further, the particle coloring means include color laser transmitter, connecting rod, XY axis Rotation Controllers and XZ
Axis Rotation Controllers；The XY axis Rotation Controllers is connected to the color laser transmitter, and the XZ axis Rotation Controllers is logical
It crosses connecting rod and is connected to the XY axis Rotation Controllers.
Further, the particle coloring means further include laser reflection inductor, for judge in photophoresis trap whether
There is particle.
Further, the multiple volume body image projector is arranged in matrix type.
Further, the volume body image projection control in each volume body image projector stores in following information
At least one: coordinate of the laser emitter of photophoresis trap control device in place, particle emission device are in place
Coordinate, the maximum volume body range of photophoresis trap and the initial position of photophoresis trap of coordinate, particle coloring means in place.
The second aspect of the present invention provides a kind of photophoresis trap projecting method, is projected using foregoing photophoresis trap
System is projected, and is included the following steps:
The first 3D model received is split as multiple 2nd 3D models by volume body image detachment device, and is sent to correspondence
Volume body image projector in volume body image projection control；
The volume body image projection control calculates all the points on the 2nd 3D model according to the 2nd 3D model received
Coordinate and color value, and send it to photophoresis trap control device and particle coloring means；
The position of photophoresis trap control device photophoresis trap according to the coordinate control controls particle in turn
Motion profile；
The particle coloring means emit corresponding light according to the coordinate and color value.
Further, the first 3D model received is split as multiple 2nd 3D moulds by the volume body image detachment device
Type, and be sent in corresponding volume body image projector volume body image projection control the step of include:
The volume body image detachment device is by the first 3D model received according to the quantity of the volume body image projector
The 2nd equal 3D model of corresponding multiple volumes, and the appearance being sent in corresponding volume body image projector are split into coordinate
Product body image projection control.
Further, the volume body image projection control calculates the 2nd 3D model according to the 2nd 3D model received
The coordinate and color value of upper all the points, and the step of sending it to photophoresis trap control device and particle coloring means includes:
The volume body image projection control, will according to the coordinate of laser emitter in the photophoresis trap control device
All the points in the 2nd 3D model correspond to the coordinate in space；
The coordinate and the corresponding color value of coordinate for storing all the points are in array；
Traverse the array；
By traversal order by the array coordinate and color value be successively sent to the photophoresis trap control device and
Particle coloring means.
Further, the photophoresis trap control device is according to the coordinate control the step of position of photophoresis trap
Include:
According to the coordinate, the longitudinal two laser emitters hair staggered relatively of photophoresis trap control device control
Angle, focal length and the intensity for the laser penetrated, with the position of the movement photophoresis trap in space.
Further, the step of particle coloring means emit corresponding light according to the coordinate and color value wraps
It includes:
According to the coordinate and color value, the angle of the particle coloring means control color laser transmitter transmitting laser
And RGB light, for the particle colouring in the photophoresis trap.
Further, before photophoresis trap control device position of photophoresis trap according to the coordinate control
It further comprises the steps of:
The particle coloring means judge whether there is particle in photophoresis trap:
If it is, carrying out in next step；
If it is not, then the volume body image projection control is sent a signal to, the volume body image projection control
The signal of transmitting particle is sent to the particle emission device, the initial position of the particle emission device alignment photophoresis trap is sent out
Radion.
In conclusion the present invention provides a kind of photophoresis trap optical projection system and method, which includes volume
As the first 3D model is split as multiple 2nd 3D moulds by detachment device and multiple volume body image projectors, volume body image detachment device
Type is simultaneously sent to corresponding volume body image projector；Each volume body image projector includes volume body image projection control, grain
Sub- emitter, photophoresis trap control device and particle coloring means；The particle emission device in photophoresis trap without particle when
By particle emission into photophoresis trap；The photophoresis trap control device controls the position of photophoresis trap and then controls the movement of particle
Track；The particle coloring means are painted to particle, and final realize " stands " void almost the same with the original in space
Quasi- object.This programme can show continuous, large volume projection 3D model.
Compared with prior art, the present invention has following beneficial technical effect:
1, the present invention can solve particle in photophoresis trap and leave photophoresis trap after by External force interference to which volume body image disappears
The problem of.The present invention detects in photophoresis trap whether have particle by particle colouring laser emitter, if led to without particle
Particle emitter is crossed to supplement transmitting particle in photophoresis trap.
2, laser emitter of the present invention for controlling photophoresis trap is staggered relatively in the longitudinal direction, and passes through lens focus
Mode control the focal coordinates of laser in space.Photophoresis trap control device can be allowed to be arranged in a square by intensive
Battle array, thus a big volume body image is split into fritter and carries out " drafting " by the photophoresis trap energy under matrix arrangement, by each
A photophoresis trap control device draws submodel, to show continuous, big volume body image.
Detailed description of the invention
Fig. 1 is the schematic perspective view of photophoresis trap optical projection system of the invention；
Fig. 2 is the schematic perspective view of photophoresis trap projector of the invention；
Fig. 3 is the schematic perspective view of particle emission device of the invention；
Fig. 4 is the schematic perspective view of the particle storage warehouse of particle emission device；
Fig. 5 (a) is the schematic perspective view of the particle emitter of particle emission device；Fig. 5 (b) is particle emitter
Schematic diagram of internal structure；
Fig. 6 is the structural schematic diagram of the rotation console of particle emission device；
Fig. 7 is the structural schematic diagram of photophoresis trap control device；
Fig. 8 (a) is the schematic perspective view of the photophoresis trap laser emitter of photophoresis trap control device；Fig. 8 (b) is
The schematic diagram of internal structure of photophoresis trap laser emitter；
Fig. 9 (a) is the schematic perspective view of particle coloring means；Fig. 9 (b) is that the internal structure of particle coloring means is shown
It is intended to；
Figure 10 is the flow diagram of photophoresis trap projecting method of the invention；
Figure 11 is the idiographic flow schematic diagram of the one of step of photophoresis trap projecting method of the invention.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
Explanation of technical terms:
Volume body image: volume seems to refer to, " suspension " virtual image of an object, this virtual image energy are presented in real space
The shape and color value of object most surfaces is presented.
Photophoresis: the fine particle (5 microns) being suspended in the air can be to when by strong illumination
A weak direction of light is mobile, and the gravity that fine particle is subject to is generally much less than photophoresis power.
Photophoresis trap: when two beams or more than strong light focus a position in space when, suffered light in this position
Power of swimming is symmetrical, so that fine particle in the position is mobile without normal direction any direction, forms one " trap ", particle is locked in
On this position in space.
Textures: the pictures such as material or texture, i.e., a kind of hand painted to 3D model are adhered to the polygon of 3D model surface
Section.
Sensitive component: for detecting reflected laser, by the angle and offset of reflected laser come
Calculate the distance that laser emitter reaches reflection object.
RGB: trichromatic abbreviation, Red, Green, Blue, each color value are indicated by hexadecimal.
The first aspect of the present invention provides a kind of photophoresis trap optical projection system, as shown in Figure 1, comprising: volume picture is torn open
Separating device 100 and multiple volume body image projectors 200；First 3D model is split as multiple second by the volume body image detachment device
3D model, and it is sent to corresponding volume body image projector 200；Volume body image projector 200 throws received 2nd 3D model
Shadow is in the space where it.Specifically, volume body image detachment device 100 is by the first 3D model root of receive object
The 2nd equal 3D model of corresponding multiple volumes is split into according to the quantity and coordinate of volume body image projector 200, and is sent to
Corresponding volume body image projector 200.Volume body image detachment device 100 passes through data line and multiple volume body image projectors 200
It is connected, the 2nd 3D model will be distributed to each connected volume body image projector 200 in the form of data packet.Connection
Volume body image projector 200 to volume body image detachment device 100 constitutes a volume body image projector matrix.Such as Fig. 1 institute
Show, multiple volume body image projectors 200 are arranged in matrix type, and (cuboid in figure only indicates sky shared by volume body image projector
Between volume, volume body image projector be not present transparent, rectangle a shell).
As shown in Fig. 2, each volume body image projector 200 includes volume body image projection control 300, particle emission dress
Set 400, photophoresis trap control device 500 and particle coloring means 600.Particle emission device 400 is used for the nothing in photophoresis trap
When particle by particle emission into photophoresis trap；Photophoresis trap control device 500 is used to control the position of photophoresis trap and then controls
The motion profile of granulation；Particle coloring means 600 are used to paint to the particle in photophoresis trap；Volume body image projection control dress
It sets 300 connections and controls the particle emission device 400, photophoresis trap control device 500 and particle coloring means 600.
Specifically, volume body image projection control 300 is connected to one group of photophoresis trap control device 500 by data line
(two photophoresis trap laser emitters), a particle coloring means 600 and a particle emission device 400.Above-mentioned hardware phase
Even form a volume body image projector 200.Volume body image projector 200 control this group of equipment interconnection receive the 2nd 3D model into
Row draws (as shown in Figure 2).
Each volume body image projection control 300 saves following at least one information: photophoresis trap laser emitter
Coordinate, coordinate, coordinate, the photophoresis trap of particle emission device in the venue of particle coloring means in the venue in the venue
Maximum volume range and the initial position of photophoresis trap etc..
Further, particle emission device 400 includes particle storage warehouse 410, particle emitter 420 and rotation console
430, as shown in Figure 3.Particle storage warehouse 410 be connected to particle emitter 420 top (be not limited to be set to top, can be with
It is any position, as long as particle is facilitated to enter particle emitter), for supplementing particle for particle emitter 420；Rotation control
The side that platform 430 processed is connected to particle emitter 420 (is not limited to be set to side, can be any position, as long as facilitating rotation
Turn the direction of the launch of console control particle emitter), for controlling the direction of the launch of particle emitter 420.Particle hair
After injection device 400 receives the signal that volume body image projection control 300 emits particle, the initial position hair of alignment photophoresis trap
Radion.Particle emission device 400 by the fixed ceiling in the venue of the fixation hole 433 on rotation 430 top of console or
Launch angle is adjusted on wall, by XZ axis Rotation Controllers 431 and XY axis Rotation Controllers 432.
Specifically, particle storage warehouse 410 is the cylinder of a transparent or opaque rigid plastics or hard metal,
As shown in figure 4, a bottom surface of the cylinder is enclosed construction, can be sealed by lid 411；Another bottom surface is provided with connection
Interface can be connected with particle emitter 420, and bulkhead 413 is formed as the side of cylinder.It can be stored up in particle storage warehouse 410
1000 or more particles 412 are deposited, the spheroidal particle that every particle is about 5 microns of diameter, particle is by translucent nontoxic
Plastics are constituted.The lid 411 of 410 upper bottom surface of particle storage warehouse can be opened, in particle storage warehouse 410 and particle emitter
After 420 connections, uncaps and supplement plastic pellet 412.
Specifically, as shown in Fig. 5 (a), particle emitter 420 include 421, two, a particle redundancy storehouse air pump (wherein
One is negative pressure air pump 422a, and one is high-pressure pump 422b), air pump control circuit 422, launching trajectory (including internal emission
Track 423a and external emission track 423b), countdown circuit 423 and gyroscope block 424.As shown in Fig. 5 (b), particle
Transmitter 420 further includes having metal shell 427, the fixing port of the side connection XY axis Rotation Controllers 432 of metal shell 427
428, rotation angle of the particle emitter 420 on XY axial plane is controlled to connect XY axis Rotation Controllers 432, to adjust grain
Angle of emergence of the son on X/Y plane.It is reserved with a circular open at the top of metal shell 427, is open as particle redundancy storehouse
421a, diameter is consistent with the outer diameter of particle storage warehouse 410, for connecting the grain in particle storage warehouse 410 and particle emitter 420
Sub- redundancy storehouse 421.It is aligned the opening using the preceding bottom by empty particle storage warehouse 410, is inserted into particle emitter 420
In, after particle storage warehouse 410 is connect with particle emitter 420, open particle storage warehouse 410 lid 411, then plus
Enter particle.The external emission track of particle emitter 420 protrudes from except shell 427, therefore with a metallic conduit 429 to it
It is wrapped up, for protecting launching trajectory.
After particle emitter 420 receives transmitting signal (transmitting signal includes firing order, launch angle etc.), transmitting
Control circuit 423 issues rotation instruction to XY axis Rotation Controllers 432 and XZ axis Rotation Controllers 431 first, by comparing top
Real-time angular in spiral shell instrument, judges whether particle emitter 420 has aimed at scheduled angle.Then start negative pressure air pump 422a,
Negative pressure is applied to the particle in particle storage warehouse 410, it will be in fine particle Inhaled Particles After Acute redundancy storehouse 421.Particle redundancy storehouse 421 is
It is made of a cylindrical body and a reverse taper, wherein the top end opening of cylindrical body forms above-mentioned particle redundancy storehouse opening 421a,
Bottom is connected with reverse taper.The diameter of the bottom opening of reverse taper, bottom opening can only pass through 1 particle.Particle is located at this time
One end of internal emission track.Later, high-pressure pump 422b ejects the gas of corresponding air pressure, and gas push particle is along track
Advance, is finally launched away.
Negative pressure air pump 422a is connected by negative tube 425a with particle redundancy storehouse 421, and there is Non-return air valve 426 in junction；It is high
Compression pump 422b is connected by high-voltage tube 425b with internal emission track 423a, and there is Non-return air valve 426 in junction.
Specifically, as shown in fig. 6, rotation console 430 includes XY axis Rotation Controllers 432, connecting rod 434 and the rotation of XZ axis
Transcoder controller 431.Two Rotation Controllers internal structures are completely the same, respectively include main rotation gear 435, auxiliary rotate gear
436, rotation control circuit 437, connecting rod slot 438 and gimbal circuit, Universal signal interface 439；Wherein, connecting rod slot
438 and gimbal circuit, the internally positioned turntable 4310 of Universal signal interface 439 on, main rotation gear 435 and auxiliary rotate gear
Outside 436 internally positioned turntables 4310.Rotation console 430 rotates anyway, and internal circuit and signal wire not will receive
Distortion, connector are engaged using endless metal, transmit electricity and signal by inner and outer ring sheet metal.The particle emission device passes through
It rotates on the fixed ceiling or other walls in the venue of fixation hole 433 on 430 top of console, passes through XZ axis Rotation Controllers
The launch angle of the adjustment particle of 431 and XY axis Rotation Controllers 432.
Further, photophoresis trap control device 500 includes two photophoresis trap laser emitters 510, as shown in fig. 7,
After the photophoresis trap control device 500 receives the signal that volume body image projection control 300 issues, by controlling two laser
The power and bit of transmitter 510 is set to control the position of photophoresis trap.Two photophoresis trap laser emitters 510 phase in the longitudinal direction
Each to issue beam of laser 520 to placement, laser intersection forms photophoresis trap 530.By the focal length for controlling two laser beams
And strong and weak variation, the position of photophoresis trap 530 in space can be moved, photophoresis trap can be to weak one of laser beam energy
Direction is mobile.
Specifically, as shown in Fig. 8 (a), photophoresis trap laser emitter 510 include laser beam emitting head 511, connecting rod 512,
XY axis Rotation Controllers 513, XZ axis Rotation Controllers 514 and pedestal 515 have fixation hole 5151 on pedestal 515, are used to the light
Swimming trap laser emitter 510 is fixed on ceiling or floor or other fixed locations.XY axis Rotation Controllers 513 is connected to
Laser beam emitting head 511, XZ axis Rotation Controllers 514 are connected to XY axis Rotation Controllers 513 by connecting rod 512.Photophoresis trap
Laser emitter 510 is the laser emitter in an adjustable Laser emission direction, focal length and power, as shown in Fig. 8 (b),
Including 512, the XZ axis Rotation Controllers of connecting rod of XY axis Rotation Controllers 513, two of laser beam emitting head 511, two
514.Each laser beam emitting head 511 includes 5111, concavees lens 5112 of a convex lens, a pair of of focus adjustment bar 5113, one
To 5114, laser emitters 5115 of concavees lens bracket and laser control circuit 5116.
The working principle of photophoresis trap laser emitter 510 is as follows: when laser control circuit 5116 receives Laser emission
After the octant coordinate information of signal and particle in space, coordinate information is converted into angle, intensity, focal length data, then will
Angle signal issues XY axis Rotation Controllers 513 and XZ axis Rotation Controllers 514.Two Rotation Controllers receive angle information
Afterwards, it is rotated according to angle, photophoresis trap laser emitter 510 is directed at specified angle.Laser control circuit 5116 is again
Focus information is sent to focus adjustment bar 5113, focus adjustment bar 5113 is elongated or shortened according to focus information, by concavees lens
5112 are moved on the position of suitable focal length 516.Laser intensity information is finally sent to laser hair by laser control circuit 5116
Emitter 5115, laser emitter 5115 is according to the laser of the strong and weak delivering respective intensities of laser.
Further, as shown in Fig. 9 (a) and 9 (b), particle coloring means 600 include color laser transmitter 610, connection
Bar 620, XY axis Rotation Controllers 630 and XZ axis Rotation Controllers 640；XY axis Rotation Controllers 630 is connected to color laser hair
Emitter 610, XZ axis Rotation Controllers 640 are connected to XY axis Rotation Controllers 630 by connecting rod 620.Further further include
Pedestal 650 has fixation hole 651 on pedestal 650, for by the particle coloring means 600 be fixed on ceiling or floor or its
His fixed location.
Specifically, the color laser transmitter 610 includes lens 611, dust-proof lens 612, color laser transmitter (RGB
Three coloured light) 613, color laser control circuit 614 and sensitive component 615.
The working principle of particle coloring means 600 is as follows: the coordinate and color value of target photophoresis trap pass to colored sharp
After light control circuit 614, coordinate information is converted and is at an angle of by color laser control circuit 614, and angle information is sent to XY
Axis Rotation Controllers 630 and XZ axis Rotation Controllers 640.After two Rotation Controllers receive signal, angle is rotated to specified
It is worth, at this time equipment alignment target coordinate.Then color value signal is sent to color laser transmitting by color laser control circuit 614
Device 613 after color laser transmitter 613 receives color value signal, issues the RGB light of different color values, forms color laser
660。
Further, particle coloring means 600 further include laser reflection inductor, for judging whether have in photophoresis trap
Particle.Specifically, laser reflection inductor is sensitive component 615, the laser that can be returned with real-time capture by inverse is calculated
Whether with the presence of particle, (distance represented by the laser beam of return is greater than nominal position and arrives sensitive component in specified coordinate
When position, exist in specified coordinate without particle, on the contrary then exist).If without particle, color laser control in specified coordinate
Circuit 615 " will reissue particle ", and information is sent to volume body image projection control 300.
The working principle of volume body image projection control 300 is as follows: volume body image detachment device 100 is by the 3D after fractionation
2nd 3D model of object is sent to the volume body image projection control 300 in a volume body image projector 200, volume
It, will be on the 2nd 3D model according to the coordinate of photophoresis trap laser emitter after obtaining this 3D model as projection control 300
All the points correspond on the coordinate of space octant.Then the coordinate of all the points and color value are stored in array (object table
The color value of the point in face comes from the textures of 3 dimension objects), while array is traversed, one by one by the coordinate of all the points and color value
It is sent to photophoresis trap control device and particle coloring means.If volume body image projection control receives nothing in photophoresis trap
After the signal of particle, signal is first issued, photophoresis trap control device is controlled by the position of photophoresis trap and is moved to initial position (one
It is a from the closer position of particle emission device), then control particle emission device emit particle into photophoresis trap, control simultaneously
Whether particle coloring means track the position of this photophoresis trap, and have particle to be launched into sensitive component therein induction
Among photophoresis trap.If whithin a period of time, in photophoresis trap again without particle, then volume body image projection control
Control particle emission device continues to emit particle into photophoresis trap.There are at least one particle, particle phase in one photophoresis trap
Constant for the position of photophoresis trap, behind the position of mobile photophoresis trap, particle is also constant relative to the position of photophoresis trap, but
It is that particle changes relative to the position of external environment (room, ground).
It is to sum up the detailed description of photophoresis trap optical projection system of the invention.
The second aspect of the present invention provides a kind of photophoresis trap projecting method, is projected using foregoing photophoresis trap
System is projected, and is included the following steps, as shown in Figure 10:
The first 3D model received is split as multiple 2nd 3D models by step S100, volume body image detachment device, and
The volume body image projection control being sent in corresponding volume body image projector.
Specifically, volume body image detachment device by the first 3D model received according to the quantity of volume body image projector and
Coordinate splits into the 2nd equal 3D model of corresponding multiple volumes, and the volume being sent in corresponding volume body image projector
Body image projection control.
Step S200, volume body image projection control calculate institute on the 2nd 3D model according to the 2nd 3D model received
Coordinate and color value a little, and send it to photophoresis trap control device and particle coloring means.
Specifically, include the following steps, as shown in figure 11:
Step S210, volume body image projection control according to the coordinate of laser emitter in photophoresis trap control device,
All the points in 2nd 3D model are corresponded into the coordinate in space；
Step S220, the coordinate and the corresponding color value of coordinate for storing all the points are in array；
Step S230 traverses the array；
Step S240, by traversal order by the array coordinate and color value be successively sent to photophoresis trap control dress
It sets and particle coloring means.
Step S300, photophoresis trap control device is according to the position of coordinate control photophoresis trap and then the movement of control particle
Track.
Specifically, according to the coordinate, longitudinal two Laser emissions staggered relatively of photophoresis trap control device control
Angle, focal length and the intensity of the laser of device transmitting, with the position of the movement photophoresis trap in space.
Step S400, the particle coloring means emit corresponding light according to the coordinate and color value.
Specifically, particle coloring means control color laser transmitter transmitting laser according to the coordinate and color value
Angle and RGB light, for the particle colouring in photophoresis trap.
Further, further include step S300 ' before step S300:
Particle coloring means judge whether there is particle in photophoresis trap:
If so, then carrying out next step S300；
If it is not, the volume body image projection control is sent a signal to, the volume body image projection control dress
The signal for sending transmitting particle is set to the particle emission device, the particle emission device is directed at the initial position of photophoresis trap
Emit particle.
Below whether photophoresis trap optical projection system of the invention is further illustrated and detected with a specific embodiment
It works normally.
A closed interior, without sunlight injection, room temperature are not more than 0.1 meter per second in 22 degree or less, wind speed.It will
Photophoresis trap control device (a pair of of laser emitter) is separately mounted on indoor ceiling and floor, this two Laser emissions
Device is perfectly aligned in vertical direction, and Laser emission mouth is perpendicular to ground.The Laser emission mouth of the two is opposite and that launches swashs
Light is completely coincident.The spacing of laser emitter in vertical direction is no more than 2.0 meters.
By the power adjustment of two laser emitters of photophoresis trap control device to 1mW, at this time in two Laser emissions
A photophoresis trap is generated among device.The coordinate (plane coordinates) of two laser emitters of photophoresis trap control device is recorded
Under, laser emitter used in a particle detection is then placed at 0.5 meter of photophoresis trap control device on the ground.
XZ at initial position alignment photophoresis trap control device by the XZ axis Rotation Controllers of particle detector
Coordinate, it is ensured that the face XY of particle detector XY axis Rotation Controllers and two laser emitter institute groups of photophoresis trap control device
At straight line there are two focus.
On the ceiling, a particle emission device is placed at 0.5 meter of photophoresis trap control device.
At initial position alignment photophoresis trap control device by the XZ axis Rotation Controllers of particle emission device
XZ coordinate, it is ensured that the face XY of the XY axis Rotation Controllers of particle emission device and two Laser emissions of photophoresis trap control device
There are two focuses for straight line composed by device.
Preferably, above-mentioned installation site is according to selected by the visual field size in not activation system and image synthesis quality
's.This field basic technology personnel are referred to relevant calculation formula and software analysis result to choose.
Rotation Controllers in the present invention can rotate 270 degree in X/Y plane, at 360 degree of XZ Plane Rotation.It can be formed
One is greater than the motion profile of hemisphere.
Photophoresis trap control device, particle detector, the particle emission device installed are connected to the projection of volume body image
On control device.When connecting equipment, it is attached by USB interface.
After volume body image projection control starting of the invention, two laser that photophoresis trap control device is controlled are sent out
Emitter launches the laser beam of two beam 1mW simultaneously.The light that mentioned laser emitter is issued, which is that low output is visual, to swash
Light, security level is in Class II.Two beam laser are completely overlapped, generate photophoresis trap in light middle section.
Particle mentioned in the present invention is customized production, and material is the white spherical transparent object of harmless plastics, ball
About 5 microns of body diameter, weight is about 0.0012 gram.
One particle is slowly put into two that photophoresis trap control device controlled by metal spoon and swashed by operator
The center of the line of optical transmitting set emitting head, checks whether photophoresis trap works.If particle is suspended in the air, illustrate that photophoresis is fallen into
Trap is had an effect.
The photophoresis trap referred in the present invention is got according to the photophoresis in nature, it may be assumed that aerial suspension
In all external forces that object receives, the active force that photophoresis generates is maximum (being greater than gravity).
Operator removes photophoresis trap for particle used is tested, and the position of photophoresis trap is recorded, with photophoresis
The position that trap control device is recorded is compared, if unanimously, illustrating that the position of photophoresis trap has obtained actual response.
Start particle detector, whether the angle for checking that particle detector is locked is that photophoresis trap control device is recorded
Angle.If consistent, show that the function of particle detector is normal.
Operator emits a particle using particle emission device, observes whether the particle has rested on light after transmitting
In swimming trap.
When the particle that " particle emission system " in the present invention is emitted, emitted using parabola low speed.Parabolic curvature
For K=lim | Δ α/Δ s |, wherein K is curvature, and Δ s is parabola starting point and the deep comparable chord length of seam, and Δ α is that parabola is initial
Incidence angle.
According to formula, particle, can be in a period of time according to the distance between photophoresis trap and transmitter after being launched
After rest in photophoresis trap.
The power of two laser emitters in photophoresis trap control device is adjusted, keep and is worth for 2mW, observation
Whether particle has " migration " generation relative to ground.If so, illustrating that photophoresis trap control equipment operation is normal.
Operator observes the position of real-time photophoresis trap in volume body image projection control, and real-time measurement is in sky
Between middle particle position.If consistent (or there are minute differences), illustrate that mobile photophoresis trap function is normal.It is inconsistent if it exists
Situation can be adjusted by way of adding error amount.
Start particle coloring means, observes the particle colouring laser emitter recorded in volume body image projection control
Whether angle is corresponding with the position of photophoresis trap.If corresponding, illustrate that the rotation of particle toning system device and focusing are normal.
Particle coloring means are allowed to issue macroscopic color (colour gamut is within naked eyes identification range) together, and in volume
The position of photophoresis trap is manually adjusted in body image projection control, if particle has been projected color always in the process, is shown
Function of painting is normal.
Volume body image projection control is by 3 dimension modules (such as cylindrical body, square etc.) of a simple geometry object
It is loaded.Operator narrows down to the actual size of model within 20 cubic centimetres.And by instruction, volume body image is allowed to project
Equipment associated by control device draws this object.
Real-time colour information provided by particle coloring means is observed, colour information is corresponded to 3 dimension modules of the original
On.It sees whether unanimously, if unanimously, illustrating that colouring function is normal.
In conclusion the present invention provides a kind of photophoresis trap optical projection system and method, which includes volume
As the first 3D model is split as multiple 2nd 3D moulds by detachment device and multiple volume body image projectors, volume body image detachment device
Type is simultaneously sent to corresponding volume body image projector；Each volume body image projector includes volume body image projection control, grain
Sub- emitter, photophoresis trap control device and particle coloring means；The particle emission device in photophoresis trap without particle when
By particle emission into photophoresis trap；The photophoresis trap control device controls the position of photophoresis trap and then controls the movement of particle
Track；The particle coloring means are painted to particle, and final realize " stands " void almost the same with the original in space
Quasi- object.This programme can show continuous, large volume projection 3D model.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (10)
1. a kind of photophoresis trap optical projection system characterized by comprising volume body image detachment device and the projection of multiple volume body images
Instrument；
First 3D model is split as multiple 2nd 3D models by the volume body image detachment device, and is sent to corresponding volume
As projector；The volume body image projector is by received 2nd 3D model projection in space where it；
Each volume body image projector includes volume body image projection control, particle emission device, the control of photophoresis trap
Device and particle coloring means；
When the particle emission device is used in photophoresis trap without particle by particle emission into the photophoresis trap；
The photophoresis trap control device is used to control the position of photophoresis trap and then controls the motion profile of particle；
The particle coloring means are used to paint to the particle in photophoresis trap；
The volume body image projection control connects and controls the particle emission device, photophoresis trap control device and particle
Coloring means.
2. photophoresis trap optical projection system according to claim 1, which is characterized in that the volume body image detachment device will connect
It is equal that the first 3D model received according to the quantity and coordinate of the volume body image projector splits into corresponding multiple volumes
2nd 3D model, and it is sent to corresponding volume body image projector.
3. photophoresis trap optical projection system according to claim 1, which is characterized in that the particle emission device includes particle
Storage warehouse, particle emitter and rotation console；
The particle storage warehouse is connected to the top of the particle emitter, for supplementing particle for the particle emitter；Institute
The side that rotation console is connected to the particle emitter is stated, for controlling the direction of the launch of the particle emitter；
After the particle emission device receives the signal of the volume body image projection control transmitting particle, it is directed at the photophoresis
The initial position of trap emits particle.
4. photophoresis trap optical projection system according to claim 1, which is characterized in that the photophoresis trap control device includes
Two laser emitters；
After the photophoresis trap control device receives the signal that the volume body image projection control issues, pass through control two
The power and bit of laser emitter is set to control the position of photophoresis trap.
5. photophoresis trap optical projection system according to claim 4, which is characterized in that the laser emitter includes laser hair
Penetrate head, connecting rod, XY axis Rotation Controllers and XZ axis Rotation Controllers；The XY axis Rotation Controllers is connected to the laser hair
Head is penetrated, the XZ axis Rotation Controllers is connected to the XY axis Rotation Controllers by connecting rod.
6. photophoresis trap optical projection system according to claim 1, which is characterized in that the particle coloring means include colour
Laser emitter, connecting rod, XY axis Rotation Controllers and XZ axis Rotation Controllers；The XY axis Rotation Controllers is connected to described
Color laser transmitter, the XZ axis Rotation Controllers are connected to the XY axis Rotation Controllers by connecting rod.
7. photophoresis trap optical projection system according to claim 6, which is characterized in that the particle coloring means further include swashing
Light reflects inductor, for judging whether there is particle in photophoresis trap.
8. photophoresis trap optical projection system according to claim 1-7, which is characterized in that the multiple volume body image
Projector is arranged in matrix type.
9. photophoresis trap optical projection system according to claim 1-8, which is characterized in that each volume body image projection
The volume body image projection control in instrument stores at least one of following information: the laser of photophoresis trap control device
Coordinate, particle coloring means coordinate, light in place of coordinate, particle emission device of the transmitter in place in place
The maximum volume body range of trap of swimming and the initial position of photophoresis trap.
10. a kind of photophoresis trap projecting method, which is characterized in that using such as the described in any item photophoresis traps of claim 1-9
Optical projection system is projected, and is included the following steps:
The first 3D model received is split as multiple 2nd 3D models by volume body image detachment device, and is sent to corresponding appearance
Volume body image projection control in product body image projector；
The volume body image projection control calculates the seat of all the points on the 2nd 3D model according to the 2nd 3D model received
Mark and color value, and send it to photophoresis trap control device and particle coloring means；
The position of photophoresis trap control device photophoresis trap according to the coordinate control and then the movement for controlling particle
Track；
The particle coloring means emit corresponding light according to the coordinate and color value.
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| CN201910156550 | 2019-03-01 | ||
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| CN201910157332 | 2019-03-01 |
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