CN105759553A - Screen speckle removing system and speckle removing method thereof - Google Patents
Screen speckle removing system and speckle removing method thereof Download PDFInfo
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- CN105759553A CN105759553A CN201610309596.2A CN201610309596A CN105759553A CN 105759553 A CN105759553 A CN 105759553A CN 201610309596 A CN201610309596 A CN 201610309596A CN 105759553 A CN105759553 A CN 105759553A
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- screen
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/562—Screens moving during projection
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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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- Optics & Photonics (AREA)
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Abstract
The invention discloses a screen speckle removing system and a speckle removing method thereof. The screen speckle removing system comprise multiple transducers used for vibrating a screen, an intelligent controller used for calculating vibrating data corresponding to the transducers according to screen parameters and multiple vibrating source scanners used for analyzing the vibrating data and correspondingly controlling the transducers; the intelligent controller is connected with the vibrating source scanners separately; the vibrating source scanners are connected with the transducers in a one-to-one corresponding mode; by enabling the screen to vibrate, reflection rays can be randomly reflected to the other directions in a diffusing mode, the reflection rays dynamically change, that is to say, the requirement can be met by achieving dynamic diffuse reflection of the light rays when certain frequency of screen vibrating is achieved, generation of screen speckles is greatly reduced, the speckles can be even completely removed, the effect is good, the cost is low, the user experience is improved, and great convenience is brought.
Description
Technical field
The present invention relates to laser projection system technical field, in particular a kind of screen speckle removes system and speckle minimizing technology thereof.
Background technology
It is known that laser projection has the advantages such as life-span length (to be added).But when image is by time in laser projections to screen, diffraction can be produced, also spectators' eyes can be reflexed to by some light, in addition laser itself has stronger energy, reflected light ray injects human eye, when the reflection light time of staying on the retina reaches more than 0.02 second, due to the visual lag of human eye, visually will will produce speckle, bring greatly inconvenience to user.The scattered class phenomenon of screen has a strong impact on presentation picture quality, particularly screen speckle issue in laser projection system, is the problem that must solve in the industry.Existing solution, such as regulates laser projection lens, produces little effect, expend great amount of cost.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is in that, it is provided that a kind of screen speckle removes system and speckle minimizing technology thereof, it is intended to solve the problem that in existing laser projection system, screen produces speckle.
This invention address that the technical scheme that technical problem adopts is as follows:
A kind of screen speckle removes system, wherein, and including:
Multiple transducers for shaking screen；
For calculating the intelligent controller of vibration data corresponding to multiple transducers according to screen parameter；
Multiple for resolving described vibration data the corresponding focus scanning device controlling each transducer；
Described intelligent controller connects multiple focus scanning device respectively；The plurality of focus scanning device and multiple transducers connect one to one.
Described screen speckle removes system, wherein, reflects light characteristic according to screen and determines the frequency band range that screen shakes, and the installation site according to screen determines the amplitude range that screen shakes；The coil turn that each transducer is corresponding, coil resistance, spring leaf coefficient of elasticity, heat treatment and wire winding is determined with frequency band range according to described amplitude range.
Described screen speckle removes system, wherein, the size and dimension according to screen, plan numbers of transducers and each self-corresponding position, the array configuration of multiple transducer is set.
Described screen speckle removes system, wherein, vibration data corresponding for best pseudorandom model of vibration, for going out, according to the shape of screen, size and calculation of Prestress, the best pseudorandom model of vibration that multiple transducer is corresponding, is sent to multiple focus scanning device by described intelligent controller.
Described screen speckle removes system, and wherein, described vibration data includes the frequency of transducer, dynamic scan waveform, amplitude and power；The vibration frequency of described transducer is less than or equal to 20 hertz.
Described screen speckle removes system, wherein, also includes: multiple distance measuring sensors for measurement transducer Yu the spacing of screen；For regulating the servomotor of transducer and the spacing of screen；Described distance measuring sensor is fixedly installed on the transducer, and described distance measuring sensor connects intelligent controller；Described intelligent controller connects transducer by servomotor.
A kind of above-mentioned screen speckle minimizing technology, wherein, including:
A, according to screen parameter, planning numbers of transducers and each self-corresponding position, the array configuration of multiple transducer is set；
B, calculate vibration data corresponding to multiple transducers according to screen parameter；
C, control according to described vibration data correspondence each transducer vibrations screen.
Described screen speckle minimizing technology, wherein, described step A specifically includes:
A1, size and dimension according to screen, planning numbers of transducers and each self-corresponding position, arrange the array configuration of multiple transducer.
Described screen speckle minimizing technology, wherein, described step A, also include:
A2, reflecting light characteristic according to screen and determine the frequency band range that screen shakes, and the installation site according to screen determines the amplitude range that screen shakes；The coil turn that each transducer is corresponding, coil resistance, spring leaf coefficient of elasticity, heat treatment and wire winding is determined with frequency band range according to described amplitude range.
Described screen speckle minimizing technology, wherein, described step B specifically includes:
Go out, according to the shape of screen, size and calculation of Prestress, the best pseudorandom model of vibration that multiple transducer is corresponding, vibration data corresponding for best pseudorandom model of vibration is sent to each self-corresponding transducer by multiple focus scanning devices.
A kind of screen speckle provided by the present invention removes system and speckle minimizing technology thereof, efficiently solves screen in existing laser projection system and produces the problem of speckle, including: multiple transducers for shaking screen；For calculating the intelligent controller of vibration data corresponding to multiple transducers according to screen parameter；Multiple for resolving described vibration data the corresponding focus scanning device controlling each transducer；Described intelligent controller connects multiple focus scanning device respectively；The plurality of focus scanning device and multiple transducers connect one to one；By making screen produce vibrations, so reflection light can by random diffuse-reflectance to other directions, and reflecting light is dynamically change, namely when screen vibrations reach certain frequency, it is achieved the dynamic diffuse-reflectance of light, requirement can be met, greatly reduce screen speckle to produce, it might even be possible to dispelling speckle completely, effective cost is low, improve Consumer's Experience, bring and greatly facilitate.
Accompanying drawing explanation
Fig. 1 is the structural representation that screen speckle provided by the invention removes system preferred embodiment.
Fig. 2 is the structural representation that screen speckle provided by the invention removes system Application Example.
Fig. 3 is the upward view of Fig. 2.
Fig. 4 is the flow chart of screen speckle minimizing technology preferred embodiment provided by the invention.
Detailed description of the invention
The present invention provides a kind of screen speckle to remove system and speckle minimizing technology thereof, and for making the purpose of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
nullScreen speckle provided by the invention removes system and speckle minimizing technology thereof，For existing when image is by time in laser projections to screen，The phenomenon such as diffraction and diffuse-reflectance can be produced，Also spectators' eyes can be reflexed to by some light，In addition laser itself has stronger energy，Reflected light ray injects human eye，When the reflection light time of staying on the retina reaches more than 0.02 second，Visual lag due to human eye，The problem that visually will will produce speckle，By according to reflective character and human eye to visible light region rank response time，Physical characteristic in conjunction with current main flow screen material，Adopt vibratory drilling method，By making screen produce vibrations，So reflection light can by random diffuse-reflectance to other directions，And reflecting light is dynamically change，Namely when screen vibrations reach certain frequency，Realize the dynamic diffuse-reflectance of light，Speckle can be removed，The present invention starts with from the generation slight part of prior art problem，The effective cost of technical scheme is low，Prior art is all that the camera lens to laser projection system processes，And most people think that vibrations screen may result in image quality problem，The mode that those of ordinary skill in the art are difficult to expect adopting vibrations screen is to remove speckle.The present invention is especially suitable for laser projection system.
Referring to Fig. 1, Fig. 1 is the structural representation that screen speckle provided by the invention removes system preferred embodiment, as it can be seen, described screen speckle removes system, including: multiple transducers 300 for shaking screen 400；For calculating the intelligent controller 100 of the vibration data of multiple transducer 300 correspondences according to screen 400 parameter；Multiple for resolving described vibration data the corresponding focus scanning device 200 controlling each transducer 300；Described intelligent controller 100 connects multiple focus scanning device 200 respectively；The plurality of focus scanning device 200 connects one to one with multiple transducers 300.
Specifically, as it is shown in figure 1, owing to cinema screen is generally large, therefore to shake screen, it is necessary to multiple transducers 300 could realize.When practical application, the size and dimension according to screen, plan numbers of transducers and each self-corresponding position, the array configuration of multiple transducer is set.It is to say, the parameter according to screen, for instance size and dimension etc., plan the numbers of transducers for shaking screen and corresponding position.When practical application, can according to different screen situation dynamic calculation models of vibration, the layout of transducer point of making rational planning for.This is the practical situation needing to plan as a whole screen, arranges numbers of transducers and position thus distributing.The following factor of main consideration: screen area relates to transducer point number；Screen shape (Aspect Ratio) relates to transducer point position and array configuration；Screen static tensile force relates to transducer frequency band range and initial phase distribution；Screen material and above-mentioned information relate to pseudo random scanning model.
Described intelligent controller 100 calculates, according to screen parameter, the vibration data that multiple transducers are corresponding, is then sent to multiple focus scanning device 200, and multiple focus scanning devices 200 resolve vibration data corresponding each transducer 300 of control respectively.Preferably, intelligent controller 100 goes out the best pseudorandom model of vibration of multiple transducer 300 correspondence according to the shape of screen, size and calculation of Prestress, and vibration data corresponding for best pseudorandom model of vibration is sent to multiple focus scanning device 200.
When practical application, described intelligent controller 100 can be SCU (SmartControlUnit, intelligent control unit), this part is for the control centre of the controlled transducer of screen, the work such as the calculating of the motion model of primary responsibility transducer, transducer point location recognition, calculate the pseudorandom model of vibration of the best eventually through on-the-spot actual screen parameter (shape, size, prestressing force etc.), be input to focus scanning device.
When practical application, described focus scanning device 200 can be SSU (SourceSweepUnit, transducer scans unit), this part is controlled by SCU, first accept controlled transducer vibration data, draw final executable scanning signal by resolving identification, this signal is input to power amplification unit simultaneously, for controlling Vibrator (controlled transducer, i.e. transducer 300).Specifically, vibration data corresponding for pseudorandom model of vibration is sent to focus scanning device 200 by intelligent controller 100, focus scanning device 200 is according to respective transducer 300 one to one, resolve corresponding vibration data out, it is then passed through being sent to transducer 300 after signal amplifies, it is achieved thereby that intelligent controller 100 is to the independent of multiple transducers 300 and Collaborative Control.Preferably, described vibration data includes the frequency of transducer, dynamic scan waveform, amplitude and power.
Preferably due in movie theatre, have many spectators can watch screen, in order to avoid transducer converts electrical energy into mechanical energy, the sound that namely transducer vibrations sends is relatively big, and the vibration frequency of described transducer, less than or equal to 20 hertz, such as can be 10Hz etc..So, when user watches screen, user's ear will not be interfered by the rattle of transducer.Transducer low-frequency vibration, interferes from the sound without movie theatre loudspeaker are sent.
Preferably, about transducer 300, can reflect, according to screen, the frequency band range that light characteristic determines that screen shakes, and the installation site according to screen determines the amplitude range that screen shakes；The coil turn that each transducer is corresponding, coil resistance, spring leaf coefficient of elasticity, heat treatment and wire winding is determined with frequency band range according to described amplitude range.It is to say, the structure of transducer carries out corresponding adjustment also dependent on the actual parameter situation (the such as characteristics of luminescence, installation site etc.) of screen.
Preferably, when practical application, due to the material of screen, such as some is metal, some is calico etc., and the effect expanded with heat and contract with cold, also have the adjustment of screen structure, it is easy to cause that the distance between transducer and screen changes, the removal effect that so can cause the present invention reduces, in order to avoid this situation occurs, described screen speckle removes system, also includes: multiple distance measuring sensors for measurement transducer Yu the spacing of screen；For regulating the servomotor of transducer and the spacing of screen；Described distance measuring sensor is fixedly installed on the transducer, and described distance measuring sensor connects intelligent controller；Described intelligent controller connects transducer by servomotor.Distance measuring sensor and servomotor are all prior art, and have multiple implementation, are not detailed herein.
Specifically, it it is exactly the distance measuring sensor being arranged to measurement transducer and the spacing of screen at each transducer whereabouts, then range data is sent to intelligent controller by distance measuring sensor, and intelligent controller controls corresponding servomotor according to described range data and regulates the distance between transducer and screen.When practical application, in order to avoid the Oscillation Amplitude of transducer is excessive, the distance between described Serve Motor Control transducer and screen is less than or equal to 1 millimeter, so just can make to remove speckle better effects if, transducer vibrational amplitude is little, and frequency is little, does not result in the impact on spectators' vision and audition.About 1 millimeter of this distance threshold, can being adjusted according to practical situation, 1 millimeter is preferred technique scheme.
When practical application, the present invention can adopt the high magnetic vibration cell distribution of special material in the key point of screen；Utilize electromagnetic induction principle, make the transducer of high mechanical quality factor in conjunction with the strong magnetic of rubidium, and calculate coil turn and coil resistance and spring leaf coefficient of elasticity according to amplitude and band requirement, and heat treatment and wire winding.Described intelligent controller is according to the selected optimum vibration frequency of mathematical model, waveform, the parameter such as amplitude, power；Require to calculate the frequency of vibroseis, dynamic scan waveform, amplitude and power with screen concrete condition and parameter according to vibrations.
Seeing also Fig. 2 and Fig. 3, Fig. 2 is the structural representation that screen speckle provided by the invention removes system Application Example, and Fig. 3 is the upward view of Fig. 2.When practical application, described screen speckle is removed system and is included the screen bracing frame 500 for fixing screen, it is arranged on the multiple transducers 300 on screen bracing frame, described transducer 300 includes the vibration source cabinet 301 and the oscillator 302 that are arranged on screen bracing frame 500, and described oscillator 302 is used for shaking screen.Specifically, when practical application, screen 400 hangs on screen bracing frame 500.Multiple transducers 300 are provided in screen behind, and the namely back side is arranged on and watches the side that screen is relative with spectators.
Preferably, the case control of vibration source cabinet 301 is at (long 150mm height 100mm thickness 60mm), for engineering plastics or aluminium shell.Cabinet is furnished with fixed installation nut or mounting hole site, can be fixing near screen easily.
Removing system based on above-mentioned screen speckle, present invention also offers a kind of screen speckle minimizing technology, as shown in Figure 4, described method includes:
Step S100, according to screen parameter, planning numbers of transducers and each self-corresponding position, the array configuration of multiple transducer is set；
Step S200, calculate vibration data corresponding to multiple transducers according to screen parameter；
Step S300, control according to described vibration data correspondence each transducer vibrations screen.
Specifically, it is simply that the first size and dimension according to screen, multiple transducer is configurated at the screen back side.Then go out, according to the shape of screen, size and calculation of Prestress, the best pseudorandom model of vibration that multiple transducer is corresponding, control the vibrations screen of each transducer according to the vibration data correspondence of best pseudorandom model of vibration.
Further, described step S100 also includes:
S110, size and dimension according to screen, planning numbers of transducers and each self-corresponding position, arrange the array configuration of multiple transducer.
Further, described step S100 also includes:
S120, reflecting light characteristic according to screen and determine the frequency band range that screen shakes, and the installation site according to screen determines the amplitude range that screen shakes；The coil turn that each transducer is corresponding, coil resistance, spring leaf coefficient of elasticity, heat treatment and wire winding is determined with frequency band range according to described amplitude range.
Further, described step S200 specifically includes:
Go out, according to the shape of screen, size and calculation of Prestress, the best pseudorandom model of vibration that multiple transducer is corresponding, vibration data corresponding for best pseudorandom model of vibration is sent to each self-corresponding transducer by multiple focus scanning devices.
Further, described vibration data includes the frequency of transducer, dynamic scan waveform, amplitude and power.Preferably, the vibration frequency of described transducer is less than or equal to 20 hertz.
In sum, a kind of screen speckle provided by the invention removes system and speckle minimizing technology thereof, including: multiple transducers for shaking screen；For calculating the intelligent controller of vibration data corresponding to multiple transducers according to screen parameter；Multiple for resolving described vibration data the corresponding focus scanning device controlling each transducer；Described intelligent controller connects multiple focus scanning device respectively；The plurality of focus scanning device and multiple transducers connect one to one；By making screen produce vibrations, so reflection light can by random diffuse-reflectance to other directions, and reflecting light is dynamically change, namely when screen vibrations reach certain frequency, it is achieved the dynamic diffuse-reflectance of light, requirement can be met, greatly reduce screen speckle to produce, it might even be possible to dispelling speckle completely, effective cost is low, improve Consumer's Experience, bring and greatly facilitate.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, it is possible to improved according to the above description or convert, all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. a screen speckle removes system, it is characterised in that including:
Multiple transducers for shaking screen；
For calculating the intelligent controller of vibration data corresponding to multiple transducers according to screen parameter；
Multiple for resolving described vibration data the corresponding focus scanning device controlling each transducer；
Described intelligent controller connects multiple focus scanning device respectively；The plurality of focus scanning device and multiple transducers connect one to one.
2. screen speckle according to claim 1 removes system, it is characterised in that reflects light characteristic according to screen and determines the frequency band range that screen shakes, and the installation site according to screen determines the amplitude range that screen shakes；The coil turn that each transducer is corresponding, coil resistance, spring leaf coefficient of elasticity, heat treatment and wire winding is determined with frequency band range according to described amplitude range.
3. screen speckle according to claim 1 removes system, it is characterised in that the size and dimension according to screen, plans numbers of transducers and each self-corresponding position, arranges the array configuration of multiple transducer.
4. screen speckle according to claim 1 removes system, it is characterized in that, vibration data corresponding for best pseudorandom model of vibration, for going out, according to the shape of screen, size and calculation of Prestress, the best pseudorandom model of vibration that multiple transducer is corresponding, is sent to multiple focus scanning device by described intelligent controller.
5. screen speckle according to claim 1 removes system, it is characterised in that described vibration data includes the frequency of transducer, dynamic scan waveform, amplitude and power；The vibration frequency of described transducer is less than or equal to 20 hertz.
6. screen speckle according to claim 1 removes system, it is characterised in that also include: multiple distance measuring sensors for measurement transducer Yu the spacing of screen；For regulating the servomotor of transducer and the spacing of screen；Described distance measuring sensor is fixedly installed on the transducer, and described distance measuring sensor connects intelligent controller；Described intelligent controller connects transducer by servomotor.
7. a screen speckle minimizing technology as claimed in claim 1, it is characterised in that including:
A, according to screen parameter, planning numbers of transducers and each self-corresponding position, the array configuration of multiple transducer is set；
B, calculate vibration data corresponding to multiple transducers according to screen parameter；
C, control according to described vibration data correspondence each transducer vibrations screen.
8. screen speckle minimizing technology according to claim 7, it is characterised in that described step A specifically includes:
A1, size and dimension according to screen, planning numbers of transducers and each self-corresponding position, arrange the array configuration of multiple transducer.
9. screen speckle minimizing technology according to claim 7, it is characterised in that described step A, also includes:
A2, reflecting light characteristic according to screen and determine the frequency band range that screen shakes, and the installation site according to screen determines the amplitude range that screen shakes；The coil turn that each transducer is corresponding, coil resistance, spring leaf coefficient of elasticity, heat treatment and wire winding is determined with frequency band range according to described amplitude range.
10. screen speckle minimizing technology according to claim 7, it is characterised in that described step B specifically includes:
Go out, according to the shape of screen, size and calculation of Prestress, the best pseudorandom model of vibration that multiple transducer is corresponding, vibration data corresponding for best pseudorandom model of vibration is sent to each self-corresponding transducer by multiple focus scanning devices.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950713A (en) * | 2017-05-26 | 2017-07-14 | 北京镭创高科光电科技有限公司 | Laser speckle removing method and device |
| CN107678169A (en) * | 2017-10-20 | 2018-02-09 | 深圳市中科创激光技术有限公司 | A kind of eliminating coherence vibroseis |
| CN108845477A (en) * | 2018-09-04 | 2018-11-20 | 芜湖影星巨幕有限公司 | It is a kind of to show the screen electromagnetic oscillation device for eliminating speckle applied to laser light source |
| CN111247401A (en) * | 2018-12-10 | 2020-06-05 | 合刃科技（深圳）有限公司 | Vibration source positioning device and method based on coherent light |
| CN112230438A (en) * | 2020-10-28 | 2021-01-15 | 江苏环球之星影视设备科技有限公司 | Screen speckle removing system and speckle removing method thereof |
| CN113674662A (en) * | 2021-07-23 | 2021-11-19 | 华为技术有限公司 | Display system and control method thereof, projector and projection system |
| CN114675430A (en) * | 2022-04-11 | 2022-06-28 | 深圳市时代华影科技股份有限公司 | Screen vibration system and control method thereof |
| WO2023024528A1 (en) * | 2021-08-27 | 2023-03-02 | 深圳市时代华影科技股份有限公司 | Screen vibrator and screen vibration system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101263420A (en) * | 2005-01-26 | 2008-09-10 | 讯宝科技公司 | Color image projection system and method |
| CN103246078A (en) * | 2013-04-23 | 2013-08-14 | 夏云 | Follow-up distributed perturbation screen secondary speckle eliminating device |
| CN203894525U (en) * | 2013-05-09 | 2014-10-22 | 图象公司 | Screen vibration system |
| CN104769498A (en) * | 2012-09-06 | 2015-07-08 | 瑞尔D股份有限公司 | High elastic modulus projection screen substrates |
| CN105453545A (en) * | 2013-06-06 | 2016-03-30 | 瑞尔D股份有限公司 | System and method for vibrating screens to reduce speckle |
-
2016
- 2016-05-10 CN CN201610309596.2A patent/CN105759553A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101263420A (en) * | 2005-01-26 | 2008-09-10 | 讯宝科技公司 | Color image projection system and method |
| CN104769498A (en) * | 2012-09-06 | 2015-07-08 | 瑞尔D股份有限公司 | High elastic modulus projection screen substrates |
| CN103246078A (en) * | 2013-04-23 | 2013-08-14 | 夏云 | Follow-up distributed perturbation screen secondary speckle eliminating device |
| CN203894525U (en) * | 2013-05-09 | 2014-10-22 | 图象公司 | Screen vibration system |
| CN105453545A (en) * | 2013-06-06 | 2016-03-30 | 瑞尔D股份有限公司 | System and method for vibrating screens to reduce speckle |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950713A (en) * | 2017-05-26 | 2017-07-14 | 北京镭创高科光电科技有限公司 | Laser speckle removing method and device |
| CN106950713B (en) * | 2017-05-26 | 2023-11-24 | 北京知它视觉科技有限公司 | Laser speckle eliminating method and device |
| CN107678169A (en) * | 2017-10-20 | 2018-02-09 | 深圳市中科创激光技术有限公司 | A kind of eliminating coherence vibroseis |
| CN108845477A (en) * | 2018-09-04 | 2018-11-20 | 芜湖影星巨幕有限公司 | It is a kind of to show the screen electromagnetic oscillation device for eliminating speckle applied to laser light source |
| CN111247401A (en) * | 2018-12-10 | 2020-06-05 | 合刃科技（深圳）有限公司 | Vibration source positioning device and method based on coherent light |
| CN112230438A (en) * | 2020-10-28 | 2021-01-15 | 江苏环球之星影视设备科技有限公司 | Screen speckle removing system and speckle removing method thereof |
| CN113674662A (en) * | 2021-07-23 | 2021-11-19 | 华为技术有限公司 | Display system and control method thereof, projector and projection system |
| WO2023024528A1 (en) * | 2021-08-27 | 2023-03-02 | 深圳市时代华影科技股份有限公司 | Screen vibrator and screen vibration system |
| CN114675430A (en) * | 2022-04-11 | 2022-06-28 | 深圳市时代华影科技股份有限公司 | Screen vibration system and control method thereof |
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Application publication date: 20160713 |