CN207731068U - A kind of speckle eliminating device - Google Patents
A kind of speckle eliminating device Download PDFInfo
- Publication number
- CN207731068U CN207731068U CN201721594056.XU CN201721594056U CN207731068U CN 207731068 U CN207731068 U CN 207731068U CN 201721594056 U CN201721594056 U CN 201721594056U CN 207731068 U CN207731068 U CN 207731068U
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- China
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- air
- flow
- gas channel
- blade
- eliminating device
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Abstract
The utility model discloses a kind of speckle eliminating devices, the speckle eliminating device is installed on the screen back side, including air-flow generating assembly, interference in air flow component and gas channel, the air-flow generating assembly generates air-flow and screen is exported and impacted through gas channel, and the air-flow that the interference in air flow component passes through the gas channel separates；The interference in air flow component includes motor and blade, and the blade is connect with the motor, and the motor controls the blade rotation, and the blade separates the air-flow of the gas channel when rotating.The speckle eliminating device of the utility model design reduces the damage probability of screen instead of the method and apparatus for eliminating speckle in a manner of generating shake point with screen Mechanical Contact in the prior art, and in such a way that air-flow blows impact screen.
Description
Technical field
The utility model is related to optical technical field, a kind of particularly speckle eliminating device.
Background technology
Speckle phenomena is prevalent in optical imaging procedures, due to the high coherence of laser, the phenomenon that laser speckle
With regard to more obvious.Currently, laser speckle tool is there are two types of solution, a kind of method is, by low noise oscillation motor to film
The screen graininess speckle under high-intensity light source is eliminated in the vibrations of screen, and movie screen reflected image is made to seem nature, satisfy
Full, brightness uniformity, picture are clear.Another method is interfered using optical maser wavelength, due to the main occurrence factor of speckle be
Under green wavelength environment, by interfering green wavelength, continuous wavelength is filtered by decomposition to realize the removal of speckle.
Utility model content
The utility model devises a kind of speckle eliminating device, on screen in such a way that air-flow blows impact screen
Speckle is eliminated.The utility model is realized using following scheme：
A kind of speckle eliminating device is installed on the screen back side, including air-flow generating assembly, interference in air flow component and air-flow lead to
Road, the air-flow generating assembly generate air-flow and screen are exported and impacted through gas channel, and the interference in air flow component is to the gas
The air-flow that circulation road passes through is separated；
The interference in air flow component includes motor and the blade that is connect with motor, and the motor controls the blade rotation,
The air-flow of the gas channel is separated when the blade rotation.
It is highly preferred that the blade is set to the air intake of gas channel.
It is highly preferred that the blade is set to the outlet air end of gas channel.
It is highly preferred that the blade be set to the gas channel air intake and the gas channel outlet air end it
Between.
Preferably, further include holder, the interference in air flow component and the gas channel are fixedly installed on the holder.
Preferably, further include shell, the air-flow generating assembly, the interference in air flow component and gas channel are set to institute
It states in shell, one end of the shell offers air admission hole, and the air-flow generating assembly is installed on the air inlet hole, the shell
The other end offer exhaust vent, the air-flow output of the gas channel is connect with the venthole.
The speckle eliminating device of the utility model design, instead of in the prior art with screen Mechanical Contact to generate shake point
The mode method and apparatus of eliminating speckle reduce the damage probability of screen and in such a way that air-flow blows impact screen.
Description of the drawings
Fig. 1 speckle eliminating device structural schematic diagrams
The structural schematic diagram of Fig. 2 interferences in air flow component and holder
In figure, 11 bottom surfaces, 12 top surfaces, 13 side walls, 121 exhaust vents, 2 air-flow generating assemblies, 3 interference in air flow components, 31 electricity
Machine, 32 blades, 4 gas channels, 41 air intake passages, 411 air intakes, 42 air-out passages, 421 outlet air ends, 51 bottom platforms, 511
Hole, 52 top platforms, 531 pillars, 532 pillars
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As depicted in figs. 1 and 2, it is the schematic diagram of speckle eliminating device.Speckle eliminating device is installed on the back of the body of movie screen
Face, the air-flow for generating certain frequency generates vibrations by movie screen, to eliminate laser speckle.
Speckle eliminating device includes shell, air-flow generating assembly 2 and interference in air flow component 3 and gas channel 4.Air-flow occurs
Component 2, interference in air flow component 3 and gas channel 4 are set to the inside of shell.It is logical through air-flow that air-flow generating assembly 2 generates air-flow
Road 4 exports the outside of shell and impacts screen, and interference in air flow component 3 can separate the air-flow for flowing through gas channel 4.
In the present embodiment, shell be air-flow generating assembly and interference in air flow component and gas channel are combined in it is integrated
External shell, shell are made of the side wall 13 of circular bottom surface 11, circular top surface 12 and cylinder, in actual installation, outside
Shell can also offer air inlet, opened up on top surface 12 according to prismatic or cube shaped or other shapes are set as on bottom surface 11
There is exhaust vent 121.
In the present embodiment, air-flow generating assembly 2 is set as power fan, and air-flow generating assembly 2 is fixedly installed in bottom surface
11 simultaneously against air inlet.In addition to this, may also be arranged to other can generate the device of air-flow.
Interference in air flow component 3 includes a motor 31 and the blade 32 being installed on motor 31, and motor 31 is with movable vane piece 32
Rotation, the air flow partition that the blade 32 of rotation flows through gas channel with certain frequency.
Gas channel 4 has and leads wind action, the air-flow that air-flow generating assembly 2 generates is guided to screen.Gas channel
There are one air intake 411 and an outlet air ends 421 for 4 tools.Wherein, air intake 411 connects against air-flow generating assembly 2, outlet air end 421
Pick out air holes 121.The air-flow that air-flow generating assembly 2 generates enters gas channel 4 by air intake 411, then from outlet air end 421
Outflow.In the present embodiment, the blade 32 of interference in air flow component 3 leads between air intake 411 and outlet air end 421, and by air-flow
Road 4 is cut into 42 two parts of air intake passage 41 and air-out passage, and blade 32 is between air intake passage 41 and air-out passage 42.
The setting of air intake 411 is arranged in air intake passage 41, outlet air end 421 in air-out passage 42.In other examples, blade may be used also
It is set to the air intake or outlet air end of gas channel.
In the present embodiment, it is additionally provided with the holder for fixing interference in air flow component 3 and air intake passage 41, holder includes bottom
The both ends of portion's platform 51, bottom platform 51 are separately fixed on the side wall 13 of shell, and motor 31 and air intake passage 41 are fixed respectively
In in bottom platform 51, bottom platform offers 411 compatible hole 511 of hole air intake；Holder further includes top platform 52,
The both ends of top platform 52 are fixed by pillar 531 and pillar 532 and the both ends of bottom platform 52 respectively, and top platform 52 has
The shaft of pilot hole, motor 31 passes through pilot hole, and blade 32 is installed on to the end of shaft.
In the present embodiment, the blade 32 of interference in air flow component 3 is set as 3, in addition to this, can also be according to actual demand
The diameter of gas channel is set and is adjusted with the leaf blade size of the straight radial adaptation of gas channel and quantity.
In the present embodiment, the power fan of speckle eliminating device generate air intake 411 of the power air pressure through gas channel into
Enter, is flowed out from the outlet air end of gas channel.In the export process of air-flow, the blade of rotation blocks air-flow to generate specifically
Outlet air frequency, the wind of the derived specific frequency can impact the movie screen of projection, screen allowed constantly to shake back and forth, to real
Speckle of the existing laser on screen is eliminated.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
It is subject to the protection scope in claims.
Claims (6)
1. a kind of speckle eliminating device, which is characterized in that be installed on the movie screen back side, including air-flow generating assembly, air-flow are done
Component and gas channel are disturbed, the air-flow that the air-flow generating assembly generates flows out through gas channel and impact movie screen, described
The air-flow that interference in air flow component passes through the gas channel separates；
The interference in air flow component includes motor and blade, and the blade is connect with the motor, and the motor controls the leaf
Piece rotates, and the blade separates the air-flow of the gas channel when rotating.
2. speckle eliminating device according to claim 1, which is characterized in that the blade is set to the air inlet of gas channel
End.
3. speckle eliminating device according to claim 1, which is characterized in that the blade is set to the outlet air of gas channel
End.
4. speckle eliminating device according to claim 1, which is characterized in that the blade is set to the gas channel
Between air intake and the outlet air end of the gas channel.
5. speckle eliminating device according to any one of claims 1 to 4, which is characterized in that further include holder, the air-flow is dry
It disturbs component and the gas channel is fixedly installed on the holder.
6. speckle eliminating device according to claim 1, which is characterized in that further include shell, the air-flow generating assembly,
The interference in air flow component and gas channel are set in the shell, and one end of the shell offers air admission hole, the gas
Stream generating assembly is installed on the air admission hole, and the other end of the shell offers exhaust vent, and the air-flow of the gas channel is defeated
Outlet is connect with the exhaust vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721594056.XU CN207731068U (en) | 2017-11-24 | 2017-11-24 | A kind of speckle eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721594056.XU CN207731068U (en) | 2017-11-24 | 2017-11-24 | A kind of speckle eliminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207731068U true CN207731068U (en) | 2018-08-14 |
Family
ID=63088220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721594056.XU Active CN207731068U (en) | 2017-11-24 | 2017-11-24 | A kind of speckle eliminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207731068U (en) |
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 |
-
2017
- 2017-11-24 CN CN201721594056.XU patent/CN207731068U/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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Speckle elimination device and method and laser display projection system Effective date of registration: 20200416 Granted publication date: 20180814 Pledgee: Bank of Jiangsu Limited by Share Ltd Shenzhen branch Pledgor: CAIZ OPTRONICS Corp. Registration number: Y2020440020007 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210511 Granted publication date: 20180814 Pledgee: Bank of Jiangsu Limited by Share Ltd. Shenzhen branch Pledgor: CAIZ OPTRONICS Corp. Registration number: Y2020440020007 |