CN108508626A - A kind of static diffusion sheet and dissipation spot method of movement scattering particles - Google Patents
A kind of static diffusion sheet and dissipation spot method of movement scattering particles Download PDFInfo
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- CN108508626A CN108508626A CN201810217504.7A CN201810217504A CN108508626A CN 108508626 A CN108508626 A CN 108508626A CN 201810217504 A CN201810217504 A CN 201810217504A CN 108508626 A CN108508626 A CN 108508626A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/48—Laser speckle optics
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Abstract
The present invention relates to the inhibition of speckle and decreases, it is especially useful in laser display, such as laser projection and laser television, the static diffusion sheet and dissipation spot method of specifically a kind of movement scattering particles.Including micro-fluidic chip, driving device and scattering particles storage device, under the control of driving device, scattering particles enter Micropump import from scattering particles storage device through hose, then flow through micro-fluidic chip from Micropump outlet, scattering particles storage device most is flowed back to through hose afterwards, forms cycle.When laser passes through these scattering particles in micro-fluidic chip, it may occur that the scattering light of Multiple Scattering, outgoing has different phase and angle of scattering in different moments, a speckle image is corresponded to respectively, within the time of integration of human eye（~30ms）Multiple speckle image superpositions, to realize that laser speckle inhibits.Laser of the present invention is small by the angle of divergence after micro-fluidic chip, while making the present invention have small, low power consumption and other advantages using the control of Micropump.
Description
Technical field
The present invention relates to the inhibition of speckle and decreases, it is especially useful in laser display, such as laser projection and laser television, specifically
It is a kind of static diffusion sheet and dissipation spot method of movement scattering particles.
Background technology
Laser has the characteristics that high brightness and monochromaticjty are good so that when it is as light source advantageously than conventional light source.But
The high coherence of laser also restricts the development of laser display simultaneously.When a branch of coherent laser is beaten in a rough surface,
The interference phenomenon of light can occur between rough surface reflection or the light of transmission.What is shown is that light distribution light and shade is uneven
Granular point, referred to as speckle.In laser display, the presence of speckle will reduce picture quality, thus must be pressed down
System.
Currently, a kind of simply and effectively inhibition Speckle Method is by vibrating or rotating diffusion sheet, but in general all need
A mechanical motor and external power supply are wanted, while inevitably causing the deformation or distortion of diffusion sheet, therefore there are systems
Volume is big, high energy consumption, stability and the shortcomings of poor reliability.
Invention content
The present invention in order to solve the above-mentioned technical problem, provide it is a kind of movement scattering particles static diffusion sheet and dissipation spot side
Method.
The present invention takes following technical scheme：A kind of static diffusion sheet of movement scattering particles, including micro-fluidic chip, drive
Dynamic device and scattering particles storage device, micro-fluidic chip are process by polymer material, and polymer material can be poly- two
Methylsiloxane PDMS or polymetylmethacrylate, there are two solution to import and export for setting on micro-fluidic chip, wherein one
A inlet and outlet are connect with scattering particles storage device, and scattering solution or scattering particles are placed in scattering particles storage device, are driven
Micropump import and Micropump outlet are provided on dynamic device, scattering particles storage device is connect with Micropump import, on micro-fluidic chip
Another solution inlet and outlet directly with Micropump export connect.
Into once, micro-fluidic chip includes integrally-built micro-fluidic chip first layer and the micro-fluidic chip second layer,
Micro-fluidic chip first layer bottom is provided with oval runner, and oval runner both ends are connected with two solution inlet and outlet respectively,
The micro-fluidic chip second layer is glass, and the micro-fluidic chip second layer is closely affixed sealing with micro-fluidic chip first layer bottom.
Into once, micro-fluidic chip includes the micro-fluidic chip first layer of striped complementary structure, striped complementary structure
The micro-fluidic chip third layer of the micro-fluidic chip second layer and striped complementary structure, the micro-fluidic chip first of striped complementary structure
It is provided with S-shaped striped runner I on layer, S-shaped striped runner II is provided in the micro-fluidic chip third layer of striped complementary structure, is flowed
Striped between road I and runner II is complementary, mutual by striped between runner I and runner II in the plane of laser light incident
The micro-fluidic chip second layer connection of structure is mended, the material of the second layer is glass.
Further, solution or scattering gas are scattered comprising scattering solution or scattering gas in scattering particles storage device
Including scattering particles and solvent.
Further, scattering particles use polymetylmethacrylate microballoon or silica SiO2Microballoon, liquid
Calcium chloride CaCl can be used in solvent2Or glycerine, the selection of liquid flux prevent scattering solution in micro-fluidic core from low viscosity
Flow velocity is too low in piece or blocks.
Further, when using the micro-fluidic chip of striped complementary structure, scattering solution need to be made or scatter the folding of gas
Penetrate rate n1With the refractive index n of micro-fluidic2Matching, i.e. n1 = n2.Otherwise after laser is by micro-fluidic chip, out
Laser striped can occur because refractive index mismatches.The concentration for changing liquid flux or gas-solvent, to change scattering solution or
Scatter gas refractive index, be finally reached it is equal with the refractive index of micro-fluidic, to realize index matching.
A kind of dissipation spot method of the static diffusion sheet of movement scattering particles, step are：Under the control of driving device,
Scattering particles enter Micropump import from scattering particles storage device through hose, then flow through micro-fluidic chip from Micropump outlet, most
Scattering particles storage device is flowed back to by hose, forms cycle, when laser passes through these scattering particles in micro-fluidic chip, meeting
Multiple Scattering occurs, the scattering light of outgoing has different phase and angle of scattering in different moments, corresponds to a speckle pattern respectively
Picture, in the time of integration 30ms of human eye, multiple speckle image superpositions, to realize that laser speckle inhibits.
Further, driving device can be with modulating frequency and voltage, to control scattering particles inside micro-fluidic chip
Flow velocity, there are runners in chip, under the high-speed driving of driving device, since the gate thickness of micro-fluidic chip is small, scattering
The concentration of particle is relatively low, therefore can guarantee that the efficient speckle under low divergencing laser inhibits, and reduces the light loss in projection display applications
Consumption.
Compared with prior art, laser is after moving the static diffusion sheet of scattering particles, due to micro-fluidic chip runner
Multiple Scattering occurs for the continuous movement of interior scattering particles, laser, to realize that laser speckle inhibits.Due to the stream of micro-fluidic chip
Road thickness is small, and the concentration of scattering particles is relatively low, and micro-fluidic chip is in static state, therefore laser after micro-fluidic chip by dissipating
Angle is small, while making the present invention have small, low power consumption and other advantages using the control of Micropump, therefore aobvious in powerful laser
There is prodigious feasibility in showing.
Description of the drawings
Fig. 1 is the static diffusion sheet stereogram of the movement scattering particles of embodiment 1；
Fig. 2 is the static diffusion sheet stereogram of the movement scattering particles of embodiment 2；
Fig. 3 is the static diffusion sheet front view of the movement scattering particles of embodiment 1；
Fig. 4 is the static diffusion sheet front view of the movement scattering particles of embodiment 2；
In figure：100- driving devices；200- scattering particles storage devices；Integrally-built micro-fluidic chip in 300- embodiments 1；
The micro-fluidic chip of striped complementary structure in 400- embodiments 2；The Micropump of 101- driving devices exports；102- driving devices it is micro-
Pump inlet；The integrally-built micro-fluidic chip first layers of 310-；The integrally-built micro-fluidic chip second layers of 320-；410- stripeds
The micro-fluidic chip first layer of complementary structure；The micro-fluidic chip second layer of 420- striped complementary structures；430- striped complementation knots
The micro-fluidic chip third layer of structure.
Specific implementation mode
Clear, complete description is carried out to technical scheme of the present invention by embodiment below in conjunction with attached drawing.
Embodiment 1
As shown in Figure 1, it is a kind of movement scattering particles static diffusion sheet, under the driving of driving device 100, scattering particles from dissipate
It penetrates in particle storage device 200 and enters Micropump import 102 through hose, then enter through hose from Micropump outlet 101 integrally-built
The solution of micro-fluidic chip 300 is imported and exported, and is imported and exported from another solution after the runner in micro-fluidic chip first layer 310
It goes out, then is flowed into scattering particles storage device 200 through hose, complete one cycle.Wherein, integrally-built micro-fluidic chip
The second layer 320 is closely affixed using glass and first layer 310, plays sealing function.
When laser passes through the flow passage area in 300 first layer 310 of integrally-built micro-fluidic chip, due to scattering particles
It is constantly moved under the high-speed driving of driving device 100, when passing through these scattering particles Multiple Scattering can occur for laser, be emitted
Scattering light different moments have different phase and angle of scattering, respectively correspond to a speckle image, in the integral of human eye
In（~30ms）Multiple speckle image superpositions, to realize that laser speckle inhibits.Change driving device 100 driving frequency and
Voltage so that the movement velocity of scattering particles changes, and can change the efficiency of speckle inhibition.
Since the gate thickness of 300 first layer 310 of integrally-built micro-fluidic chip is small, while scattering solution or scattering gas
The concentration of body is relatively low, and micro-fluidic chip 300 is in static state, thus the light path of laser light scattering region is short, and diverging is small, to be
The etendue of system is small, reduces the light loss in projection display applications.Although the diverging of laser is small, due to scattering
Micro-fluidic chip 300 first layer 310 of the grain at place has enough diffusion migration areas, i.e. circular flow channel region, to solve
Contradiction between laser diversity and dissipation spot is realized and ensure that small laser beam divergence while speckle inhibits.
Embodiment 2
As shown in Fig. 2, a kind of static diffusion sheet of movement scattering particles, is to use a concentration of 2.5% PMMA to scatter solution
Example, solute, that is, scattering particles are the PMMA of 5um grain sizes, and solvent is calcium chloride（CaCl2）Solution, micro-fluidic chip（400）
One layer uses dimethyl silicone polymer with third layer（PDMS）.Under the driving of driving device 100, scattering particles from scattering
In grain storage device 200, enter Micropump import 102 through hose, then enter striped complementary structure through hose from Micropump outlet 101
Micro-fluidic chip 400 is eventually returned in scattering particles storage device 200, forms cycle.Wherein, the miniflow of striped complementary structure
It controls 400 second layer 420 of chip and uses glass, be closely affixed with first layer 410 and third layer 430, play sealing and connection function.
Flow passage area in micro-fluidic chip 400 first layer 410 and third layer 430 of the laser by striped complementary structure
When, since scattering particles constantly move under the high-speed driving of driving device 100, laser can be sent out when passing through these scattering particles
The scattering light of raw Multiple Scattering, outgoing has different phase and angle of scattering in different moments, corresponds to a speckle image respectively,
Within the time of integration of human eye（~30ms）Multiple speckle image superpositions, to realize that laser speckle inhibits.Change driving device
100 driving frequency and voltage so that the movement velocity of scattering particles changes, and can change the efficiency of speckle inhibition.
During actual fabrication, due to the first layer 410 and third layer of the micro-fluidic chip 400 of striped complementary structure
There are alignment errors for 430 complementary structure, cause striped complementary structure can not complete complementary.At this moment laser passes through micro-fluidic core
400 meeting of piece, laser striped can occur because refractive index mismatches.Thus, it is necessary to will scattering solution or scattering gas with it is micro-fluidic
Chip 400 carries out index matching.The concentration for changing scattering particles can change speckle solution or scatter the refractive index of gas,
Reach equal with the refractive index of micro-fluidic chip 400, striped can be eliminated.
Since 400 first layer 410 of micro-fluidic chip and the gate thickness of third layer 430 of striped complementary structure are small, simultaneously
The concentration for scattering solution or scattering gas is relatively low, and micro-fluidic chip 400 is in static state, thus the light of laser light scattering region again
Journey is short, and diverging is small, small to the etendue of system, reduces the light loss in projection display applications.Although the hair of laser
It is scattered small, but since scattering particles have enough after 400 first layer 410 of micro-fluidic chip at place and 430 complementation of third layer
Big diffusion migration area, i.e. flow passage area after complementation, it is real to solve the contradiction between laser diverging and dissipation spot
Existing speckle ensure that small laser beam divergence while inhibition.
The present invention can in a variety of forms be embodied without departing from the spirit and scope of the present invention, it should be understood that above-mentioned
Embodiment is not limited to details above-mentioned, and should widely be explained in claim limited range.It should be pointed out that for this
For the those of ordinary skill of technical field, without departing from the structure of the invention, it can also make several improvements and wait
The variation in range is imitated, such modifications and variations also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of static diffusion sheet of movement scattering particles, it is characterised in that：Including micro-fluidic chip, driving device（100）With
Scattering particles storage device（200）, micro-fluidic chip is process by polymer material, and polymer material can be poly dimethyl
Siloxanes PDMS or polymetylmethacrylate, there are two solution to import and export for setting on micro-fluidic chip, one of them into
Outlet and scattering particles storage device（200）Connection, scattering particles storage device（200）In be placed with scattering solution or scattering
Grain, driving device（100）On be provided with Micropump import（102）It is exported with Micropump（101）, scattering particles storage device（200）With
Micropump import（102）It connects, another solution inlet and outlet on micro-fluidic chip are directly exported with Micropump（101）Connection.
2. the static diffusion sheet of movement scattering particles according to claim 1, it is characterised in that：The micro-fluidic chip
Including integrally-built micro-fluidic chip（300）First layer（310）With the micro-fluidic chip second layer（320）, micro-fluidic chip
One layer（310）Bottom is provided with oval runner, and oval runner both ends are connected with two solution inlet and outlet respectively, micro-fluidic core
The piece second layer（320）For glass, the micro-fluidic chip second layer（320）With micro-fluidic chip first layer（310）Bottom is closely affixed
Sealing.
3. the static diffusion sheet of movement scattering particles according to claim 1, it is characterised in that：The micro-fluidic chip
Micro-fluidic chip first layer including striped complementary structure（410）, striped complementary structure the micro-fluidic chip second layer（420）With
The micro-fluidic chip third layer of striped complementary structure（430）, the micro-fluidic chip first layer of striped complementary structure（410）Upper setting
There are S-shaped striped runner I, the micro-fluidic chip third layer of striped complementary structure（430）On be provided with S-shaped striped runner II, runner I
Striped between runner II is complementary, in the plane of laser light incident, is tied by striped complementation between runner I and runner II
The micro-fluidic chip second layer of structure（410）Connection, the second layer（410）Material be glass.
4. the static diffusion sheet of movement scattering particles according to claim 1, it is characterised in that：The scattering particles are deposited
Storage device（200）In comprising scattering solution or scattering gas, scatter solution or scattering gas include scattering particles and solvent.
5. the static diffusion sheet of movement scattering particles according to claim 4, it is characterised in that：The scattering particles are adopted
With polymetylmethacrylate microballoon or silica SiO2Calcium chloride CaCl can be used in microballoon, liquid flux2Or glycerine,
The selection of liquid flux prevents scattering solution flow velocity in micro-fluidic chip too low or blocks from low viscosity.
6. the static diffusion sheet of filling movement scattering particles according to claim 3, it is characterised in that：It scatters solution or dissipates
Emanate the refractive index n of body1With micro-fluidic chip（400）The refractive index n of material2Matching, i.e. n1 = n2。
7. a kind of dissipation spot method of the static diffusion sheet of movement scattering particles as claimed in claim 6, step are：It is driving
Dynamic device（100）Control under, scattering particles are from scattering particles storage device（200）Enter Micropump import through hose（102）, so
It is exported afterwards from Micropump（101）Micro-fluidic chip is flowed through, most flows back to scattering particles storage device through hose afterwards（200）, cycle is formed,
When laser passes through these scattering particles in micro-fluidic chip, it may occur that the scattering light of Multiple Scattering, outgoing has in different moments
There are different phase and angle of scattering, corresponds to a speckle image, multiple speckle images in the time of integration 30ms of human eye respectively
Superposition, to realize that laser speckle inhibits.
8. a kind of dissipation spot method of the static diffusion sheet of movement scattering particles according to claim 7, it is characterised in that：
Driving device（100）It can be with modulating frequency and voltage, to control flow velocity of the scattering particles inside micro-fluidic chip, in chip
There are runners, in driving device（100）High-speed driving under, since the gate thickness of micro-fluidic chip is small, scattering particles it is dense
Spend it is relatively low, therefore can guarantee low divergencing laser under efficient speckle inhibit, reduce projection display applications in light loss.
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| CN201810217504.7A CN108508626A (en) | 2018-03-16 | 2018-03-16 | A kind of static diffusion sheet and dissipation spot method of movement scattering particles |
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| CN201810217504.7A CN108508626A (en) | 2018-03-16 | 2018-03-16 | A kind of static diffusion sheet and dissipation spot method of movement scattering particles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200688A (en) * | 2021-12-21 | 2022-03-18 | 中国海洋大学 | Combined speckle suppression device and method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1879057A (en) * | 2004-04-09 | 2006-12-13 | 松下电器产业株式会社 | Laser image display |
| CN101078869A (en) * | 2006-05-24 | 2007-11-28 | 精工爱普生株式会社 | Screen, rear projector, projection system, and image display unit |
| CN201285473Y (en) * | 2008-09-22 | 2009-08-05 | 北京中视中科光电技术有限公司 | Decoherent and field equalizing apparatus based on diffusion |
| CN102053383A (en) * | 2011-01-29 | 2011-05-11 | 中北大学 | Speckle eliminating device based on Mie scatter and perturbation drive |
| CN202075496U (en) * | 2011-01-29 | 2011-12-14 | 中北大学 | Eckle eliminating device based on Mie scattering and Brownian movement |
| CN202075495U (en) * | 2011-01-29 | 2011-12-14 | 中北大学 | Speckle eliminating device based on Mie scatter and optical element |
| CN202815330U (en) * | 2012-09-06 | 2013-03-20 | 西安邮电学院 | Laser speckle eliminating device with dodging function |
| CN104834171A (en) * | 2015-04-27 | 2015-08-12 | 杨毅 | Laser light emitting device, light source and projection display system |
| CN106350439A (en) * | 2016-11-10 | 2017-01-25 | 上海美吉逾华生物医药科技有限公司 | Micro-fluidic chip for cell capture and fluorescent staining |
| CN107153277A (en) * | 2017-07-13 | 2017-09-12 | 中北大学 | It is a kind of to be disappeared speckle device based on the multifarious laser of wavelength |
| CN107533280A (en) * | 2015-04-22 | 2018-01-02 | 大日本印刷株式会社 | Screen, display device, the application method of screen, particle, particle layer, particle piece and light-operated film-making |
| WO2018039497A1 (en) * | 2016-08-26 | 2018-03-01 | Spheryx, Inc. | Holographic characterization using hu moments |
| CN107782642A (en) * | 2017-09-27 | 2018-03-09 | 华中科技大学 | A kind of multi-peak particle swarm particle diameter distribution detection means |
| CN107796741A (en) * | 2017-09-27 | 2018-03-13 | 华中科技大学 | A kind of optical fiber dynamic light scattering detection means of high concentration particle group |
-
2018
- 2018-03-16 CN CN201810217504.7A patent/CN108508626A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1879057A (en) * | 2004-04-09 | 2006-12-13 | 松下电器产业株式会社 | Laser image display |
| CN101078869A (en) * | 2006-05-24 | 2007-11-28 | 精工爱普生株式会社 | Screen, rear projector, projection system, and image display unit |
| CN201285473Y (en) * | 2008-09-22 | 2009-08-05 | 北京中视中科光电技术有限公司 | Decoherent and field equalizing apparatus based on diffusion |
| CN102053383A (en) * | 2011-01-29 | 2011-05-11 | 中北大学 | Speckle eliminating device based on Mie scatter and perturbation drive |
| CN202075496U (en) * | 2011-01-29 | 2011-12-14 | 中北大学 | Eckle eliminating device based on Mie scattering and Brownian movement |
| CN202075495U (en) * | 2011-01-29 | 2011-12-14 | 中北大学 | Speckle eliminating device based on Mie scatter and optical element |
| CN202815330U (en) * | 2012-09-06 | 2013-03-20 | 西安邮电学院 | Laser speckle eliminating device with dodging function |
| CN107533280A (en) * | 2015-04-22 | 2018-01-02 | 大日本印刷株式会社 | Screen, display device, the application method of screen, particle, particle layer, particle piece and light-operated film-making |
| CN104834171A (en) * | 2015-04-27 | 2015-08-12 | 杨毅 | Laser light emitting device, light source and projection display system |
| WO2018039497A1 (en) * | 2016-08-26 | 2018-03-01 | Spheryx, Inc. | Holographic characterization using hu moments |
| CN106350439A (en) * | 2016-11-10 | 2017-01-25 | 上海美吉逾华生物医药科技有限公司 | Micro-fluidic chip for cell capture and fluorescent staining |
| CN107153277A (en) * | 2017-07-13 | 2017-09-12 | 中北大学 | It is a kind of to be disappeared speckle device based on the multifarious laser of wavelength |
| CN107782642A (en) * | 2017-09-27 | 2018-03-09 | 华中科技大学 | A kind of multi-peak particle swarm particle diameter distribution detection means |
| CN107796741A (en) * | 2017-09-27 | 2018-03-13 | 华中科技大学 | A kind of optical fiber dynamic light scattering detection means of high concentration particle group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200688A (en) * | 2021-12-21 | 2022-03-18 | 中国海洋大学 | Combined speckle suppression device and method |
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