CN107656412A - A kind of contact eliminating coherence system - Google Patents
A kind of contact eliminating coherence system Download PDFInfo
- Publication number
- CN107656412A CN107656412A CN201710966115.XA CN201710966115A CN107656412A CN 107656412 A CN107656412 A CN 107656412A CN 201710966115 A CN201710966115 A CN 201710966115A CN 107656412 A CN107656412 A CN 107656412A
- Authority
- CN
- China
- Prior art keywords
- function waveform
- module
- waveform generator
- eliminating coherence
- coherence system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000945 filler Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 241000628997 Flos Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- 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
- G03B21/14—Details
- G03B21/147—Optical correction of image distortions, e.g. keystone
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The invention discloses a kind of contact eliminating coherence system, including control module, function waveform generator, power driver module, power module and shaking device；The control module controls the function waveform generator to send function waveform signal, and provides signals to power driver module；The power driver module is sent to shaking device after signal is amplified；Corresponding vibration wave is produced after shaking device reception signal and reaches screen.Vibroseis is produced by collective effects such as control module, function waveform generator, power driver module, shaking devices, then the speckle issue solved in laser projection is shaken by screen, dissipation spot effect is good, and noise is extremely low, cost is low, improves user's viewing experience.
Description
Technical field
The present invention relates to laser projection system technical field, specifically a kind of contact eliminating coherence system.
Background technology
Laser is increasingly being applied to show skill due to having the advantages that high brightness, monochromaticjty is good and good directionality
Art field, compared with conventional light source, LASER Light Source display image has a bigger color appearance space, higher color saturation and
Excitation, there is wider, more perfect color restoration capability；In FPD, public information giant-screen, laser television, movie theatre
Deng field, laser display technology has bigger development space and wide market application foreground.
However, due to the coherence that LASER Light Source has in itself, being irradiated on uneven or rough surface to interfere
Phenomenon, substantial amounts of interference will form the pattern of irregular distribution, i.e. speckle, can be formed on screen granular light and dark
Spot, these unfocused spots are in flicker state in human eye, severely impact image display quality, reduce user's
Viewing experience.Therefore how to weaken or eliminate focus and difficult point that laser speckle is still technical field of laser display research.
In the prior art laser curtain dissipation spot method by by multiple motors be installed on screen carrier produce screen vibrations come
Laser speckle is eliminated, this technology has following several defects：
(1) it is larger that noise is produced when motor works, influences viewing effect；
(2) motor service life is shorter, and replacement frequency is higher, and maintenance cost is high；
(3) effective vibration can not be reached among screen, dissipation spot effect is poor；
(4) motor shake curtain can not complete the vibrations of oversize screen.
The content of the invention
It is an object of the invention to provide a kind of contact eliminating coherence system, is asked with solve to propose in above-mentioned background technology
Topic.
To achieve the above object, the present invention provides following technical scheme：
A kind of contact eliminating coherence system, it is characterised in that including control module, function waveform generator, power drive
Module, power module and shaking device；Wherein function waveform generator and power driver module by wire respectively with control mould
Pin corresponding to block is electrically connected with；The control module controls the function waveform generator to send function waveform signal, and will
Signal is supplied to power driver module；The power driver module is sent to shaking device after signal is amplified；Shaking device connects
Corresponding shock wave is produced after the collection of letters number and reaches screen；Pass through infrasonic energy transmission screen synch of specific frequency
Resonance is to eliminate the speckle in laser projection；Power module provides power supply for function waveform generator and power driver module.
As further scheme of the invention：The shaking device includes multiple sound equipments, and installs in a particular manner
At screen rear portion.
As further scheme of the invention：Filler is provided between the sound equipment and screen.
As further scheme of the invention：The filler is one kind in silica gel and sponge.
As further scheme of the invention：The vibration frequency of the sound equipment is in the range of infrasound.
As further scheme of the invention：The function waveform generator sends sine wave, square wave, triangular wave, saw
One kind in tooth ripple.
As further scheme of the invention：The control module is miniature control processor, and microprocessor is computing
Speed is more than one kind in all microprocessors of 80C51 series.
Compared with prior art, the beneficial effects of the invention are as follows：Driven by control module, function waveform generator, power
The collective effects such as dynamic model block, shaking device produce vibroseis, are then shaken by screen and solve speckle issue, dissipation spot effect
It is good, low noise, low cost, improve user's viewing experience.
Brief description of the drawings
Fig. 1 is a kind of structural representation of contact eliminating coherence system.
Fig. 2 is that a kind of contact eliminating coherence system middle pitch is rehearsed with musical accompaniment the structural representation of column distribution.
Fig. 3 is that a kind of contact eliminating coherence system middle pitch is rehearsed with musical accompaniment the structural representation of column distribution.
In figure：Screen 1, shaking device 2, filler 3
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Such as Fig. 1, in the embodiment of the present invention, a kind of contact eliminating coherence system, it is characterised in that including control module, letter
Number waveform generator, power driver module, power module and shaking device；Wherein function waveform generator and power driver module
By wire, pin corresponding with control module is electrically connected with respectively；The control module controls the function waveform generator hair
Go out function waveform signal, and provide signals to power driver module；The power driver module is sent to after signal is amplified
Shaking device；Corresponding shock wave is produced after shaking device reception signal and reaches screen；Pass through the infrasonic of specific frequency
Energy transmission causes screen synch resonance to eliminate the speckle in laser projection；Power module is function waveform generator and power
Drive module provides power supply.
The shaking device includes multiple sound equipments, and is arranged in series on screen frame, according to the size of screen
And shape, the quantity of sound equipment and each self-corresponding position are planned, the array configuration of multiple sound equipments is set.
Filler is provided between the sound equipment and screen, filler is fixed on sound equipment.
The filler is by the different material composition of three layers of soft or hard degree, and the outermost layer that sound equipment and screen directly contact is most
Soft, intermediate layer is taken second place, and internal layer is most hard, and so setting both can as far as possible be transmitted to energy screen, can avoid contact with face mistake again
It is hard to cause screen to form bump region, influence viewing effect.
The filler is one kind in silica gel and sponge.
The function waveform generator sends one kind in sine wave, square wave, triangular wave, sawtooth waveforms.
The vibration frequency of the sound equipment is in the range of infrasound.
The control module is miniature control processor, and microprocessor is that arithmetic speed is more than all micro- of 80C51 series
One kind in processor.
The present invention operation principle be：Pass through control module, function waveform generator, power driver module, shaking device
Vibroseis is produced etc. collective effect, is then shaken by screen and solves speckle issue, dissipation spot effect is good, low noise, low cost,
Improve user's viewing experience；The present invention can be used for the application of all kinds of laser, the huge curtain of laser, laser science shop etc..
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of contact eliminating coherence system, it is characterised in that including control module, function waveform generator, power drive mould
Block, power module and shaking device；Wherein function waveform generator and power driver module by wire respectively with control module
Corresponding pin is electrically connected with；
The control module controls the function waveform generator to send function waveform signal, and provides signals to power drive
Module；The power driver module is sent to shaking device after signal is amplified；Produced after shaking device reception signal corresponding
Shock wave simultaneously reaches screen；
The power module provides power supply for function waveform generator and power driver module.
2. a kind of contact eliminating coherence system according to claim 1, it is characterised in that the shaking device includes multiple
Sound equipment, and it is arranged on screen rear portion.
3. a kind of contact eliminating coherence system according to claim 1, it is characterised in that set between the sound equipment and screen
There is filler, filler is fixed on sound equipment.
4. a kind of contact eliminating coherence system according to claim 4, it is characterised in that the filler is silica gel and sea
One kind in silk floss.
5. a kind of contact eliminating coherence system according to claim 1, it is characterised in that the vibration frequency of the sound equipment is
In the range of infrasound.
6. according to claim a kind of contact eliminating coherence system, it is characterised in that the function waveform generator is sent
One kind in sine wave, square wave, triangular wave, sawtooth waveforms.
7. a kind of contact eliminating coherence system according to claim 1, it is characterised in that the control module is miniature control
Processor, microprocessor are one kind that arithmetic speed is more than in all microprocessors of 80C51 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966115.XA CN107656412A (en) | 2017-10-17 | 2017-10-17 | A kind of contact eliminating coherence system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710966115.XA CN107656412A (en) | 2017-10-17 | 2017-10-17 | A kind of contact eliminating coherence system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107656412A true CN107656412A (en) | 2018-02-02 |
Family
ID=61118351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710966115.XA Pending CN107656412A (en) | 2017-10-17 | 2017-10-17 | A kind of contact eliminating coherence system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107656412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010060745A (en) * | 2008-09-02 | 2010-03-18 | Tohoku Univ | Display device |
| CN104142602A (en) * | 2013-05-09 | 2014-11-12 | 图象公司 | Methods and systems of vibrating a screen |
| 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 |
| CN105940346A (en) * | 2014-01-03 | 2016-09-14 | 杜比实验室特许公司 | Moveably-coupled screen actuators |
| CN206020829U (en) * | 2016-09-13 | 2017-03-15 | 张剑 | A kind of projection screen speckle removal device |
| CN107003597A (en) * | 2014-12-09 | 2017-08-01 | 图像影院国际有限公司 | The method and system for vibrating screen |
| CN207366919U (en) * | 2017-10-17 | 2018-05-15 | 深圳市中科创激光技术有限公司 | A kind of contact eliminating coherence system |
-
2017
- 2017-10-17 CN CN201710966115.XA patent/CN107656412A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010060745A (en) * | 2008-09-02 | 2010-03-18 | Tohoku Univ | Display device |
| CN104142602A (en) * | 2013-05-09 | 2014-11-12 | 图象公司 | Methods and systems of vibrating a screen |
| 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 |
| CN105940346A (en) * | 2014-01-03 | 2016-09-14 | 杜比实验室特许公司 | Moveably-coupled screen actuators |
| CN107003597A (en) * | 2014-12-09 | 2017-08-01 | 图像影院国际有限公司 | The method and system for vibrating screen |
| CN206020829U (en) * | 2016-09-13 | 2017-03-15 | 张剑 | A kind of projection screen speckle removal device |
| CN207366919U (en) * | 2017-10-17 | 2018-05-15 | 深圳市中科创激光技术有限公司 | A kind of contact eliminating coherence system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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