CN208141059U - Laser display system and its eliminating coherence vibrational system - Google Patents
Laser display system and its eliminating coherence vibrational system Download PDFInfo
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- CN208141059U CN208141059U CN201820639359.7U CN201820639359U CN208141059U CN 208141059 U CN208141059 U CN 208141059U CN 201820639359 U CN201820639359 U CN 201820639359U CN 208141059 U CN208141059 U CN 208141059U
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Abstract
The utility model belongs to projection display technique field,It is intended to provide a kind of laser display system and its eliminating coherence vibrational system,Including gasket,Vibrator,Controller and intelligent integrated signaling module,Wherein,Gasket is set to the back side of the receiving plane of light receiving piece,I.e. on vibration plane,And vibrator is connected with gasket,In this way,When intelligent integrated signaling module sends corresponding control signal according to different situations Intelligent treatment and to controller in time,After controller receives corresponding control signal,I.e. controllable vibrator is vibrated or stops vibrating,Thus,The image formed after laser light source is projected on the receiving plane of light receiving piece quickly random variation,To due to visual persistence effect,Realize the sensory effects that speckle has been eliminated,Generally,Not only dissipation spot effect is good for the laser display system and its eliminating coherence vibrational system,And structure is simple,It is easy for installation,Thus,Production cost and maintenance cost are lower.
Description
Technical field
The utility model belongs to projection display technique field, more specifically, be related to a kind of laser display system and its
Eliminating coherence vibrational system.
Background technique
Laser is increasingly being applied to display skill because it has many advantages, such as that high brightness, monochromaticjty is good and good directionality
Art field.Compared with conventional light source, with bigger color appearance space, higher color saturation when laser light source shows image
And excitation purity, there is wider, more perfect color restoration capability.Thus, in FPD, public information large screen, laser electricity
Depending on fields such as, movie theatres, laser display technology has bigger development space and broader market application prospect.
However, can be interfered when being irradiated on uneven or rough surface because laser light source itself has coherence
Phenomenon, a large amount of interference will form the pattern of irregular distribution, i.e. speckle, these speckles are rendered as granular bright on the screen
Spot between dark phase, human eye look at these unfocused spots in flashing state, it is clear that this can seriously affect projection picture
The quality in face reduces the viewing experience of user.
For the elimination of laser speckle, can not start at this stage from light source internal eliminate speckle in the case where, currently, broken
It is usually to borrow the methods of vibration and rotary device in the conventional means of bad laser coherence, as vibrated inside light engine
The optical devices such as reflecting mirror, vibration screen, vibrational scattering device, vibration optical fiber, rotation homogenize piece etc..Wherein, to vibrate optics
For two methods of device and vibration screen, former approach is there are dissipation spot effect is undesirable, poor, failure rate height of stability etc.
Defect；The cost of later approach is low, and dissipation spot effect is good, but structure is complicated for existing screen vibration device, difficult to install, from
And correspondingly increase production cost and maintenance cost.
Utility model content
The purpose of this utility model is to provide a kind of eliminating coherence vibrational systems, to solve screen existing in the prior art
Curtain vibration device is because structure is complicated, the factors such as difficult to install lead to its production cost and the higher technical problem of maintenance cost.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of eliminating coherence vibrational system is provided,
The eliminating coherence vibrational system is for eliminating when laser light source is projected to the receiving plane of light receiving piece by laser beam emitting device in institute
State the speckle generated on receiving plane, wherein the light receiving piece has the vibration plane opposite with the receiving plane；The eliminating coherence
Vibrational system includes power module；
Gasket, on the vibration plane of the light receiving piece；
Vibrator is connected with the gasket, to vibrate the light receiving piece across the gasket；
Controller is connected to the power module, and the vibrator unlatching is controlled to receive control signal or is stopped
Vibration；
Intelligent integrated signaling module, to send the corresponding control to the controller according to different situations intelligent selection
Signal processed, to control the unlatching or stopping of the vibrator.
Further, the control signal includes a combination signal, and the intelligent integrated signaling module includes being connected to institute
Controller is stated to send the acousto-optic intelligent control device of the combination signal to the controller.
Further, the combination signal includes first switch signal, and the acousto-optic intelligent control device includes to described
Controller sends the optical sensor module of the first switch signal；The first switch signal is the ambient enviroment that will test
The corresponding electric signal that is converted into of optical signal.
Further, the combination signal further includes second switch signal, the acousto-optic intelligent control device further include to
The controller sends the sonic sensor modules of the second switch signal；The second switch signal is around will test
The corresponding electric signal that the voice signal of environment is converted into.
Further, the control signal further includes third switching signal, the intelligent integrated signaling module further include to
The controller sends the wireless communication module of the third switching signal, and one end connection of the wireless communication module is described to swash
Light emitting devices, the other end connect the controller.
Further, whether the third switching signal is to be opened or closed according to the laser beam emitting device to synchronize pair
It should indicate the signal of vibration is opened or stopped to the controller whether.
Further, the gasket is equipped with multiple, and multiple vibrators are connected on each controller, each described
Gasket and each vibrator correspond.
Further, each vibrator uniform array arrangement, alternatively, the vibration plane of the corresponding light receiving piece
Surrounding and centre are provided with the combination of vibrations being made of multiple vibrators, and each combination of vibrations connects the control
Device.
Specifically, each vibrator is speaker or motor or motor.
The purpose of this utility model additionally provides a kind of laser display system, to solve laser existing in the prior art
Structure is complicated and difficult to install for display system, is unfavorable for the technical issues of saving production cost and maintenance cost.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of laser display system, institute are provided
Stating laser display system includes projector, which includes above-mentioned eliminating coherence vibrational system, the Laser emission
Device is set on the projector.
Compared with prior art, the beneficial effect of laser display system provided by the utility model and its eliminating coherence vibrational system
Fruit is：
The eliminating coherence vibrational system includes power module, gasket, vibrator, controller and intelligent integrated signaling module,
In, gasket is set on the vibration plane (i.e. the back side of receiving plane) of light receiving piece, and vibrator is connected with gasket, in this way, working as intelligence
Energy integrated signal module sends corresponding control signal to controller according to different situations intelligent selection, is connected to power module
After controller receives corresponding control signal, i.e., controllable vibrator is vibrated or is stopped to light receiving piece across gasket
Vibration, as a result, the image energy quickly random variation that laser light source is formed after being projected on the receiving plane of light receiving piece,
When the vibration of receiving plane reaches certain frequency, the reflection light being irradiated on receiving plane is quickly randomly reflected into other sides
To reducing the generation of interference phenomenon, and then greatly reduce the generation of receiving plane speckle, simultaneously because visual persistence effect, people
The imperceptible apparent speckle of eye exists, to realize the sensory effects that speckle has been eliminated, generally, the laser display system and
Not only dissipation spot effect is good for its eliminating coherence vibrational system, and structure is simple, easy for installation, thus, production cost and maintenance cost
It is lower.
Detailed description of the invention
To be illustrated more clearly that the technical scheme in the embodiment of the utility model, embodiment or the prior art will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structure schematic diagram of eliminating coherence vibrational system in the utility model embodiment.
Wherein, the label in attached drawing is as follows：
100- laser light source；
200- light receiving piece, 210- receiving plane, 220- vibration plane；
300- gasket, 400- vibrator, 500- wireless communication module.
Specific embodiment
For technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, below
In conjunction with specific drawings and the specific embodiments, further elaborate to the utility model.Wherein, the utility model is embodied
The same or similar label indicates the same or similar element or element with the same or similar functions in the attached drawing of example.
It should be understood that ground, specific embodiment disclosed below are intended for explaining the utility model, it is not used to limit originally practical new
Type.
It should be noted that when element is referred to as " being fixed on " or " being installed on " or " being set to " or " being connected to " another element
On, it, which can be, is directly or indirectly located on another element.For example, when an element referred to as " is connected to " another yuan
On part, it, which can be, is directly or indirectly connected on another element.Term " length ", " width ", "upper", "lower", " left side ",
The orientation or position of the instructions such as " right side ", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outside" are based on attached drawing
Shown in orientation or position, be only easy for describing, should not be understood as the limitation to the technical program.
In addition, term " first ", " second " only for ease of description, be not understood to indicate or imply relative importance or
Person implicitly indicates the quantity of technical characteristic.The meaning of " plurality " is two or more, unless otherwise specifically defined.
In short, for the ordinary skill in the art, can understand the concrete meaning of above-mentioned term as the case may be.
A kind of realization of eliminating coherence vibrational system provided by the utility model is retouched in detail below in conjunction with attached drawing 1
It states.
It should be noted that the eliminating coherence vibrational system, mainly to eliminate laser beam emitting device (not shown) for laser light
When source 100 projects to the receiving plane 210 of light receiving piece 200, the speckle generated on receiving plane 210, that is, mainly to eliminate
The speckle generated by the interference pattern of laser itself.In practical application, which is mainly used for laser display
In system, certainly, it may also be used in other suitable systems such as laser illumination system.Generally, the eliminating coherence vibrational system is not
Only dissipation spot effect is good, and structure is simple, easy for installation, is conducive to reduce production cost and maintenance cost, in addition, the eliminating coherence shakes
Dynamic system it is low in energy consumption, be conducive to energy conservation and environmental protection.
It should be noted that light receiving piece 200 has receiving plane 210 and the vibration plane 220 opposite with receiving plane 210,
That is, the back side of receiving plane 210 is vibration plane 220.It is to be appreciated that receiving plane 210 is mainly projected to receive laser light source 100
The image come.Vibration plane 220 is mainly to facilitate following 400 contact vibrations of vibrator to eliminate speckle.In general, light receiving piece
200 be screen, certainly, in fact, being not limited to screen.
As shown in Figure 1, the eliminating coherence vibrational system, including power module, gasket 300, vibrator 400, controller and intelligence
It can integrated signal module (not shown).Wherein, gasket 300 is set on the vibration plane 220 of light receiving piece 200, is specially set to screen
On the back side of curtain, and vibrator 400 is connected with gasket 300, in this way, the technical effect generated is as follows：
(1) when vibrator 400 vibrates, light receiving piece 200 can be vibrated across gasket 300, that is, avoiding vibrator
The direct contact of 400 light receiving pieces 200 such as screen avoids shadow due to vibrator 400 easily causes convex block when vibrating in turn as far as possible
It rings and arrives user's viewing effect.
(2) because the surface area of gasket 300 is typically larger than the vibration contact area of vibrator 400, thus, pass through gasket
300 can also uniformly spread the vibrational energy of vibrator 400 and go, so that oscillating region is wider, vibrating effect is more preferable.
(3) it is connected because of vibrator 400 with gasket 300, that is, link together always in vibration processes, thus, certain journey
The stability of vibration between vibrator 400 and light receiving piece 200 is enhanced on degree.
It should be noted that being always to touch relationship, and pad between gasket 300 and vibrator 400 specifically in the present embodiment
Using glue or the fixed bonding of double-sided adhesive between piece 300 and light receiving piece 200.Certainly, it is solid that other suitable modes also can be used
Fixed connection.Gasket 300 can be made of plastics, and can also be made of other suitable materials.In general, the section shape that gasket 300 is
Shape is round, in this way, the corner that can avoid gasket 300 forms convex block on the light receiving piece 200 such as receiving plane 210 of screen,
Which can ensure that people not find out easily from the front of such as screen of light receiving piece 200 on the specific position in the behind of screen to be arranged
There is gasket 300.
Again as shown in Figure 1, controller, is connected to power module, mainly to receive control signal to control vibrator
400 open or stop vibration.It is to be appreciated that controller is connected with vibrator 400.Accordingly, intelligent integrated signaling module
(not shown) is mainly to send corresponding control signal to controller according to different situations intelligent selection in time, to control vibration
Dynamic device is opened or is stopped.
It should be noted that " when controller being needed to open vibration " described here is usually laser beam emitting device (not shown)
It opens and when to 200 projected image of light receiving piece, accordingly, " when controller being needed to stop vibration " is usually laser beam emitting device
It closes, when terminating to 200 projected image of light receiving piece.
By upper obvious, which is able to achieve the purpose for eliminating speckle, and structure composition is simplified, each components
Between relationship it is simple, be highly convenient for installing.
Further, a kind of specific embodiment as eliminating coherence vibrational system provided by the utility model, such as Fig. 1 institute
Show, control signal includes a combination signal, and intelligent integrated signaling module includes the acousto-optic intelligent control device for being connected to controller.
Wherein, the acousto-optic intelligent control device is mainly to send combination signal to controller, to allow the controller to control vibration in time
Vibration is opened or stopped to dynamic device 400.
It should be noted that in general, the acousto-optic intelligent control device, is mainly used to detect ambient enviroment namely project in environment
Intensity of sound or optical power etc., the acoustical signal or optical signal that then will test be converted into corresponding electric signal namely above-mentioned
Combination signal be sent to controller.
It should be noted that " combination signal " described here, is present in after having begun projection broadcasting, that is, only
When having projection to play, the optical signal and/or electric signal in detection range are just had in ambient enviroment.
Further, a kind of specific embodiment as eliminating coherence vibrational system provided by the utility model, such as Fig. 1 institute
Show, combination signal includes first switch signal, and acousto-optic intelligent control device includes the light that first switch signal is sent to controller
Sensor module.Wherein, first switch signal is the corresponding electric signal that is converted into of optical signal for the ambient enviroment that will test.It can
To understand that ground, optical sensor module mainly to the optical signal for the ambient enviroment that will test, are converted into corresponding electric signal, and
It is sent to controller, so that vibration is opened or stopped to controller control vibrator 400.Optical signal described here, refers mainly to light
Power is certainly not limited to optical power.
Further, a kind of specific embodiment as eliminating coherence vibrational system provided by the utility model, such as Fig. 1 institute
Show, combination signal further includes second switch signal, and acousto-optic intelligent control device further includes sending second switch signal to controller
Sonic sensor modules.Wherein, second switch signal is the corresponding electricity that is converted into of voice signal for the ambient enviroment that will test
Signal.It corresponds to it is to be appreciated that sonic transducer mainly to the voice signal for the ambient enviroment that will test, is converted into accordingly
Electric signal, and it is sent to controller, so that vibration is opened or stopped to controller control vibrator 400.Sound letter described here
Number, intensity of sound is referred mainly to, intensity of sound is certainly not limited to.
Further, a kind of specific embodiment as eliminating coherence vibrational system provided by the utility model, such as Fig. 1 institute
Show, control signal further includes third switching signal, and intelligent integrated signaling module further includes sending third switching signal to controller
Wireless communication module 500, one end of wireless communication module 500 connects laser beam emitting device (not shown), other end connection control
Device processed.Specifically in the present embodiment, which is WIFI wireless module.In addition, in general, third switching signal
Whether to be opened or closed according to laser beam emitting device to synchronize the signal of vibration is opened or stopped to corresponding instruction controller whether.
It is to be appreciated that laser beam emitting device (not shown) and controller are to be wirelessly connected, when the Laser emission of projector
Device one is opened, and when preparing projection laser light source 100, controller is ready to receive to arrive third switching signal, namely corresponding wireless
Signal, synchronously control vibrator 400 open vibration, conversely, stopping vibration.
Specifically, specifically in the present embodiment, control signal includes first switch signal, second switch letter
Number and three kinds of third switching signal, that is, controller can be controlled by these three switching signals vibrator 400 open or stop
Only, in practical applications, controller be specifically receive any switching signal control should as the case may be depending on, pass through
Such setting can be reduced the time of vibration of vibrator 400 to a certain extent, to greatly extend the use of vibrator 400
Service life will not be inconsistent and vibration always because of received signal and actual conditions.
Such as specifically, when wireless signal is unstable or does not connect, wireless signal module then can temporary failure, to keep away
Exempt from light receiving piece 200 also receive projection but vibrator 400 stopped the case where vibrate, at this moment, acousto-optic intelligent control
Device can be instructed by optical signal in the ambient enviroment that detects or acoustical signal to send to controller, and entire film plays
In the process, as the image of screen some when some region be dark, at this point, optical sensor module can't detect optical signal,
At this moment, sonic sensor modules can control vibrator 400 by the acoustical signal detected, similarly, whereas if sonic transducer
Module can not work, then optical sensor module can continue to play a role.Specifically in the present embodiment, specifically which kind of is switched
Signal control vibrate, can be arranged by software so that several switching signals can be complementary to one another with mutually coordinated work, with
Ensure in entirely projection playing process, vibrator 400 can work always.
Further, a kind of specific embodiment as eliminating coherence vibrational system provided by the utility model, such as Fig. 1 institute
Show, gasket 300 be equipped with it is multiple, multiple vibrators 400 are connected on each controller.Wherein, to avoid vibrator 400 and light from connecing
The vibration plane 220 of addressee 200 directly contacts, and each gasket 300 is corresponded with each vibrator 400.
Specifically in this embodiment, it is preferred that, each 400 uniform array of vibrator is arranged, alternatively, corresponding light receiving piece 200
Vibration plane 220 surrounding and intermediate be provided with the combination of vibrations being made of multiple vibrators 400, each combination of vibrations connection
One controller.Wherein, the quantity of the vibrator 400 of each combination of vibrations may be the same or different, and particular number is according to real
Depending on border needs.
It should be noted that although the arrangement mode multiplicity of vibrator 400, it usually can be according to the vibration of vibrator 400
Frequency and oscillating region, light receiving piece 200 rear setting vibrator 400 arrangement mode and quantity, it is ensured that screen it is every
A region all vibrates, and vibration blind area is eliminated, to reach optimal dissipation spot effect.In addition, the speckle such as some region is tight
Weight, vibrator 400 can be set again in corresponding region, in short, the distribution situation of each vibrator 400 should according to actual needs and
It is fixed.
Specifically, a kind of specific embodiment as eliminating coherence vibrational system provided by the utility model, each vibrator
400 be speaker or motor or motor.It is small in size when especially each vibrator 400 is motor or motor, it is low in energy consumption, it is conducive to section
Can be environmentally friendly, it is easy for installation, and dissipation spot effect is good.
The utility model also provides a kind of laser display system, as shown in Figure 1, laser display system includes projector, it should
Laser display system includes above-mentioned eliminating coherence vibrational system, and laser beam emitting device (not shown) is set on projector.
Specifically, in the present embodiment, the controller of eliminating coherence vibrational system is only real with laser beam emitting device
Existing wireless telecommunications, that is, even if projector is opened, but laser beam emitting device is not opened, and controller will not start the vibration of vibrator 400
It is dynamic.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model.For this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of the claims of the utility model.
Claims (10)
1. eliminating coherence vibrational system, laser light source is projected to light for eliminating laser beam emitting device by the eliminating coherence vibrational system
The speckle generated on the receiving plane when receiving plane of receiving element, which is characterized in that the light receiving piece has to be connect with described
The opposite vibration plane in receipts face；The eliminating coherence vibrational system includes power module；
Gasket, on the vibration plane of the light receiving piece；
Vibrator is connected with the gasket, to vibrate the light receiving piece across the gasket；
Controller is connected to the power module, opens or stop vibration to receive control signal to control the vibrator；
Intelligent integrated signaling module is believed to send the corresponding control to the controller according to different situations intelligent selection
Number, to control the unlatching or stopping of the vibrator.
2. eliminating coherence vibrational system according to claim 1, which is characterized in that the control signal includes a combination letter
Number, the intelligent integrated signaling module includes the sound for being connected to the controller to send the combination signal to the controller
Light intelligent controlling device.
3. eliminating coherence vibrational system according to claim 2, which is characterized in that the combination signal includes first switch letter
Number, the acousto-optic intelligent control device includes the optical sensor module that the first switch signal is sent to the controller；Institute
State the corresponding electric signal that the optical signal that first switch signal is the ambient enviroment that will test is converted into.
4. eliminating coherence vibrational system according to claim 3, which is characterized in that the combination signal further includes second switch
Signal, the acousto-optic intelligent control device further include the sonic transducer mould that the second switch signal is sent to the controller
Block；The second switch signal is the corresponding electric signal that the voice signal for the ambient enviroment that will test is converted into.
5. eliminating coherence vibrational system according to claim 2, which is characterized in that the control signal further includes third switch
Signal, the intelligent integrated signaling module further include the radio communication mold that the third switching signal is sent to the controller
Block, one end of the wireless communication module connect the laser beam emitting device, and the other end connects the controller.
6. eliminating coherence vibrational system according to claim 5, which is characterized in that the third switching signal is according to
Whether laser beam emitting device opens or closes to synchronize the signal of vibration is opened or stopped to the corresponding instruction controller whether.
7. eliminating coherence vibrational system according to any one of claims 1 to 6, which is characterized in that the gasket be equipped with it is multiple,
Multiple vibrators are connected on each controller, each gasket and each vibrator correspond.
8. eliminating coherence vibrational system according to claim 7, which is characterized in that each vibrator uniform array arrangement,
Alternatively, the surrounding of the vibration plane of the corresponding light receiving piece and centre are provided with the vibration group being made of multiple vibrators
It closes, each combination of vibrations connects a controller.
9. eliminating coherence vibrational system according to claim 7, which is characterized in that each vibrator be speaker or motor or
Motor.
10. laser display system, the laser display system includes projector, which is characterized in that the laser display system is also
Including eliminating coherence vibrational system according to any one of claims 1 to 9, the laser beam emitting device is set to the projector
On.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820639359.7U CN208141059U (en) | 2018-04-28 | 2018-04-28 | Laser display system and its eliminating coherence vibrational system |
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| CN201820639359.7U CN208141059U (en) | 2018-04-28 | 2018-04-28 | Laser display system and its eliminating coherence vibrational system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2018
- 2018-04-28 CN CN201820639359.7U patent/CN208141059U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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