CN110376836A - The screen of laser speckle is eliminated by vibration - Google Patents
The screen of laser speckle is eliminated by vibration Download PDFInfo
- Publication number
- CN110376836A CN110376836A CN201910666155.1A CN201910666155A CN110376836A CN 110376836 A CN110376836 A CN 110376836A CN 201910666155 A CN201910666155 A CN 201910666155A CN 110376836 A CN110376836 A CN 110376836A
- Authority
- CN
- China
- Prior art keywords
- screen frame
- screen
- rigidity
- face component
- display face
- 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
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3161—Modulator illumination systems using laser light sources
Abstract
The present invention relates to laser display technology, solve the problems, such as that the existing technology noise for eliminating laser speckle based on vibration screen is big, installation and debugging are inconvenient.Technical solution is summarized are as follows: the screen of laser speckle, including screen frame, rigidity display face component, actuating member and at least one guide rail mechanism are eliminated by vibration；The rigidity display face component is located in screen frame, and rigidity shows and connected between face component and screen frame by least one guide rail mechanism, and the rigidity display face component is enable to move back and forth in screen frame along guide rail direction；The actuating member is connect with screen frame and rigidity display face component respectively, and the actuating member, which is used to move back and forth in screen frame for rigidity display face component, provides power.Beneficial effect is: noise is small when screen of the invention vibrates, and is easily installed debugging.
Description
Technical field
The present invention relates to laser display technologies, in particular to laser speckle technology for eliminating.
Background technique
In laser display, since laser has high coherence, when the rough surface of laser light incident to screen, micro- surface
Irregular interference phenomenon can occur in space for the reflection light in different benchmark, and the top near screen surface is formed
Irregular light and dark spot, i.e. laser speckle, laser speckle phenomenon can visually be discovered, and image quality is seriously affected,
It is showed in double-colored and three color laser display systems more significant.
In order to eliminate laser speckle, the technology of laser speckle is eliminated based on vibration screen in the prior art, is mostly utilized
Mechanical force or electromagnetic force vibrate screen frame, thus so that screen is integrally generated vibration, but not only noise is big for this mode, Er Qieyou
It needs to vibrate in entire screen frame, installation and debugging are also inconvenient；In addition, there are also screen frame and screen display screen face it
Between support installed by special elastic mechanism, screen display screen face, this side are then vibrated by mechanical force or electromagnetic force
Formula can reduce noise, but between screen frame and screen display screen face other than the space needed for vibrating, it is also necessary to there are
The space of elastic mechanism, the installation devices such as actuating member is installed so that in entire screen area non-display area accounting
It is larger, the scene of less demanding to dimensional compactness such as this mode applies in general to motion picture projection or heavy construction is shown, and
The scene more demanding to dimensional compactness for laser television etc. is less applicable in, and non-display area accounts in entire screen area
It is bigger, influence user's viewing experience.
Summary of the invention
The present invention is that the existing technology noise for eliminating laser speckle based on vibration screen of solution is big, installation and debugging are inconvenient
The problem of, a kind of screen for eliminating laser speckle by vibration is provided.
To solve the above problems, the technical solution adopted by the present invention is that:
The screen of laser speckle, including screen frame, rigidity display face component, actuating member and at least are eliminated by vibration
One guide rail mechanism；
The rigidity display face component is located in screen frame, and rigidity is shown between face component and screen frame by least
One guide rail mechanism connection enables the rigidity display face component to move back and forth in screen frame along guide rail direction；
The actuating member is connect with screen frame and rigidity display face component respectively, and the actuating member is used for as rigidity
Display face component moves back and forth in screen frame provides power.
As advanced optimizing, the actuating member is located at the reverse side of rigidity display face component.
As advanced optimizing, the rigidity display face component includes that optics shows film layer and rigid support backboard, described
Optics shows that film layer is connect with rigid support backboard, and the actuating member is connect with screen frame and rigid support backboard respectively,
It is connected between the rigid support backboard and screen frame by least one guide rail mechanism.
As advanced optimizing, the screen frame is using fluting design, and the rigidity display face component is in screen frame
When inside moving back and forth, rigidity shows that the edge of face component is always positioned in the groove of screen frame.
As advanced optimizing, pass through at least one between the back side of the rigidity display face component and the groove of screen frame
A guide rail mechanism connection.
As advanced optimizing, above-mentioned screen further includes elastomer, and the elastomer is mounted in the groove of screen frame.
As advanced optimizing, the frequency that the rigidity display face component moves back and forth in screen frame is used
1HZ to 50HZ.
As advanced optimizing, the amplitude that the rigidity display face component moves back and forth in screen frame is used
1mm to 20mm.
As advanced optimizing, the thickness of the rigidity display face component is less than or equal to 10mm.
Beneficial effect is: rigidity display face component of the invention is slidably supported in screen frame by guide rail mechanism, and
It is oriented to by guide rail mechanism, under the action of actuating member, rigidity can be made to show that face component carries out certain frequency in screen frame
The reciprocating motion of rate, that is, vibrate, and realizes the purpose for eliminating laser speckle, due to using being slidably connected for guide rail, and screen
Frame will not vibrate, so that noise is small when screen vibrates, while be easily installed debugging.The present invention is especially suitable for ultrashort burnt laser
TV.
Detailed description of the invention
Fig. 1 is the front view of the screen that laser speckle is eliminated by vibration of the embodiment of the present invention.
Fig. 2 is cross-sectional view of the screen in the position A-A that laser speckle is eliminated by vibration of the embodiment of the present invention.
Wherein, 1 is screen frame, and 2 be rigidity display face component, and 21 be that optics shows film layer, and 22 be rigid support backboard,
31 be guide rail mechanism one, and 32 be guide rail mechanism two, and 4 be actuating member, and 5 be elastomer.
Specific embodiment
With reference to the accompanying drawings and examples, the technical solution that the present invention will be described in detail.
The present invention provide it is a kind of by vibration eliminate laser speckle screen, including screen frame, rigidity display face component,
Actuating member and at least one guide rail mechanism；Rigidity display face component is located in screen frame, and rigidity shows face component and screen
It is connected between frame by least one guide rail mechanism, enables the rigidity display face component in screen frame along guide rail side
To moving back and forth；Actuating member is connect with screen frame and rigidity display face component respectively, and the actuating member is for being
Rigidity display face component moves back and forth in screen frame provides power.
In above-mentioned screen, rigidity shows face component by passing through guide rail mechanism sliding support in screen frame, and by leading
Rail mechanism guiding can make rigidity show that face component carries out certain frequency in screen frame under the action of actuating member
It moves back and forth, that is, vibrates, realize the purpose for eliminating laser speckle.
Above-mentioned screen is advanced optimized, specifically may is that
On the one hand, actuating member is located at the reverse side of rigidity display face component, by by the position arrangement of actuating member
In the reverse side of rigidly display face component, space required between screen frame and rigid display surface edge can be reduced, into
And the accounting of non-display area in entire screen area is reduced, improve user's viewing experience.
On the one hand, rigidity display face component includes that optics shows that film layer and rigid support backboard, the optics show film layer
It is connect with rigid support backboard, the actuating member is connect with screen frame and rigid support backboard respectively, the rigid support
It is connected between backboard and screen frame by least one guide rail mechanism；Above-mentioned optics shows film layer as rigidity display face
The front of part, for providing the display interface of laser projection, the back side of the rigid support backboard as rigidity display face component is used for
Rigid support is provided, guide rail mechanism is connected respectively to rigid support backboard and screen frame, to realize rigidity display face component
It moves back and forth.
On the one hand, screen frame is back and forth transported in screen frame using fluting design, the rigidity display face component
When dynamic, rigidity shows that the edge of face component is always positioned in the groove of screen frame；By above-mentioned design, so that rigid display surface
Its edge is without departing from groove when component moves back and forth in screen frame, and then keeps user not noticeable to rigidity display
Face component is kept in motion, and can be improved user's viewing experience.
Further, pass through at least one guide rail mechanism between the back side of rigidity display face component and the groove of screen frame
On the one hand connection can between the above-mentioned back side that guide rail mechanism is arranged in rigidity display face component and the groove of screen frame
Space needed for reducing between screen frame and rigid display surface edge, and then reduce non-display area in entire screen area
Accounting improves user's viewing experience, on the other hand can be avoided rigidity display face component is arranged in guide rail mechanism front and screen
When between the groove of curtain frame, rigidity shows that face component user in vibration processes may see guide rail mechanism from front, influences
Viewing experience.
Further, above-mentioned screen further includes elastomer, and elastomer is mounted in the groove of screen frame, by groove
Interior setting elastomer, with reduce rigidity display face component and screen frame collide etc. abnormal conditions when generated noise,
And play the role of protection rigidity display face component and screen frame.
On the one hand, the frequency that rigidity display face component moves back and forth in screen frame is using 1HZ to 50HZ, upper
It states when being vibrated under frequency, can more effectively eliminate laser speckle.
As advanced optimizing, the amplitude that the rigidity display face component moves back and forth in screen frame is used
1mm to 20mm when vibrating under above-mentioned amplitude, can more effectively eliminate laser speckle.
As advanced optimizing, the thickness of the rigidity display face component is less than or equal to 10mm, and rigidity shows face component
Thickness no more than 10mm, otherwise will cause rigidity display face component it is overweight, influence its vibrating effect, and waste former material
Material.
Embodiment
Concrete example illustrates technical solution of the present invention below.
The screen that laser speckle is eliminated by vibration of this example, as depicted in figs. 1 and 2, including screen frame 1, rigidity are aobvious
Show face component 2, guide rail mechanism 1, guide rail mechanism 2 32, actuating member 4 and elastomer 5, wherein rigidity display face component 2 by
Optics shows that film layer 21 and rigid support backboard 22 are combined.
Screen frame 1 using fluting design, rigidity show face component 2 be located in screen frame 1, actuating member 4 respectively with
Screen frame 1 and rigid support backboard 22 connect, and actuating member 4 is located at the reverse side of rigidity display face component, ascends the throne
In 22 side of rigid support backboard.Pass through guide rail machine between the upper rear portion of rigid support backboard 22 and the groove of screen frame 1
Structure 1 connects, and is connected between the lower backside of rigid support backboard 22 and the groove of screen frame 1 by guide rail mechanism 2 32,
Guide rail mechanism 1 and guide rail mechanism 2 32 are parallel to each other, and are all parallel to the horizontal plane, and rigidity is enable to show that face component 2 exists
Bilateral reciprocation is carried out in screen frame 1.Elastomer 5 is installed in the groove of screen frame 1.Face component is shown according to rigidity
The depth of the groove of screen frame 1 is arranged in 2 amplitudes to move back and forth, makes the rigidity show face component 2 in screen frame 1
When moving back and forth, rigidity shows that the edge of face component 2 is always positioned in the groove of screen frame 1.It is mentioned by actuating member 4
Power needed for carrying out bilateral reciprocation in screen frame 1 for rigidity display face component 2.Specifically, rigidly being shown in this example
Show that face component 2 carries out the frequency of bilateral reciprocation using 50HZ in screen frame 1, amplitude uses 10mm, rigid display surface
The thickness of component 2 uses 10mm.
Claims (9)
1. eliminating the screen of laser speckle by vibration, including screen frame, rigidity display face component and actuating member, feature
It is, further includes at least one guide rail mechanism；
The rigidity display face component is located in screen frame, and rigidity, which is shown, passes through at least one between face component and screen frame
Guide rail mechanism connection enables the rigidity display face component to move back and forth in screen frame along guide rail direction；
The actuating member is connect with screen frame and rigidity display face component respectively, and the actuating member is used for as rigidity display
Face component moves back and forth in screen frame and provides power.
2. the screen as described in claim 1 for eliminating laser speckle by vibration, which is characterized in that the actuating member is located at
The reverse side of rigidity display face component.
3. the screen as described in claim 1 for eliminating laser speckle by vibration, which is characterized in that the rigidity display face
Part includes that optics shows that film layer and rigid support backboard, the optics show that film layer is connect with rigid support backboard, the actuating
Component is connect with screen frame and rigid support backboard respectively, passes through at least one between the rigid support backboard and screen frame
A guide rail mechanism connection.
4. the screen as described in claim 1 for eliminating laser speckle by vibration, which is characterized in that the screen frame uses
Fluting design, when the rigidity display face component moves back and forth in screen frame, rigidity shows that the edge of face component begins
Final position is in the groove of screen frame.
5. the screen as claimed in claim 4 for eliminating laser speckle by vibration, which is characterized in that the rigidity display face
It is connected between the back side of part and the groove of screen frame by least one guide rail mechanism.
6. the screen as claimed in claim 4 for eliminating laser speckle by vibration, which is characterized in that it further include elastomer, institute
Elastomer is stated to be mounted in the groove of screen frame.
7. the screen as described in claim 1 for eliminating laser speckle by vibration, which is characterized in that the rigidity display face
The frequency that part moves back and forth in screen frame uses 1HZ to 50HZ.
8. the screen as described in claim 1 for eliminating laser speckle by vibration, which is characterized in that the rigidity display face
The amplitude that part moves back and forth in screen frame uses 1mm to 20mm.
9. the screen as described in claim 1 for eliminating laser speckle by vibration, which is characterized in that the rigidity display face
The thickness of part is less than or equal to 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910666155.1A CN110376836A (en) | 2019-07-23 | 2019-07-23 | The screen of laser speckle is eliminated by vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910666155.1A CN110376836A (en) | 2019-07-23 | 2019-07-23 | The screen of laser speckle is eliminated by vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110376836A true CN110376836A (en) | 2019-10-25 |
Family
ID=68255108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910666155.1A Pending CN110376836A (en) | 2019-07-23 | 2019-07-23 | The screen of laser speckle is eliminated by vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110376836A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2138340A1 (en) * | 1970-08-03 | 1972-02-10 | Clausen E | Rear screen projection system - with stationary glass and moving plastic plate giving flicker free picture |
| JP2006343663A (en) * | 2005-06-10 | 2006-12-21 | Sony Corp | Image projecting apparatus and screen used for the same |
| US20070171521A1 (en) * | 2006-01-25 | 2007-07-26 | Sony Corporation | Screen and image projection apparatus |
| CN101060599A (en) * | 2006-04-17 | 2007-10-24 | 精工爱普生株式会社 | Screen, rear projector, and image display apparatus |
| CN101064808A (en) * | 2006-04-27 | 2007-10-31 | 精工爱普生株式会社 | Projector, screen, projector system, and scintillation removing apparatus |
| CN102023470A (en) * | 2009-09-16 | 2011-04-20 | 北京中视中科光电技术有限公司 | Rear projection screen |
| CN202120027U (en) * | 2011-06-23 | 2012-01-18 | 马鞍山市影星银幕有限公司 | Horizontally moving mechanism for screen |
| JP4969294B2 (en) * | 2007-04-03 | 2012-07-04 | 三菱電機株式会社 | Projection-type image display device |
| CN105807546A (en) * | 2015-01-21 | 2016-07-27 | 罗伯特·博世有限公司 | Projection screen apparatus, projection apparatus, and projection method |
-
2019
- 2019-07-23 CN CN201910666155.1A patent/CN110376836A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2138340A1 (en) * | 1970-08-03 | 1972-02-10 | Clausen E | Rear screen projection system - with stationary glass and moving plastic plate giving flicker free picture |
| JP2006343663A (en) * | 2005-06-10 | 2006-12-21 | Sony Corp | Image projecting apparatus and screen used for the same |
| US20070171521A1 (en) * | 2006-01-25 | 2007-07-26 | Sony Corporation | Screen and image projection apparatus |
| CN101060599A (en) * | 2006-04-17 | 2007-10-24 | 精工爱普生株式会社 | Screen, rear projector, and image display apparatus |
| CN101064808A (en) * | 2006-04-27 | 2007-10-31 | 精工爱普生株式会社 | Projector, screen, projector system, and scintillation removing apparatus |
| JP4969294B2 (en) * | 2007-04-03 | 2012-07-04 | 三菱電機株式会社 | Projection-type image display device |
| CN102023470A (en) * | 2009-09-16 | 2011-04-20 | 北京中视中科光电技术有限公司 | Rear projection screen |
| CN202120027U (en) * | 2011-06-23 | 2012-01-18 | 马鞍山市影星银幕有限公司 | Horizontally moving mechanism for screen |
| CN105807546A (en) * | 2015-01-21 | 2016-07-27 | 罗伯特·博世有限公司 | Projection screen apparatus, projection apparatus, and projection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |
|
| RJ01 | Rejection of invention patent application after publication |