CN108803223A - A kind of speckle elimination structure - Google Patents
A kind of speckle elimination structure Download PDFInfo
- Publication number
- CN108803223A CN108803223A CN201810889373.7A CN201810889373A CN108803223A CN 108803223 A CN108803223 A CN 108803223A CN 201810889373 A CN201810889373 A CN 201810889373A CN 108803223 A CN108803223 A CN 108803223A
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- CN
- China
- Prior art keywords
- bearing
- connecting plate
- driving motor
- slide
- output shaft
- 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.)
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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
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
-
- 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
Abstract
The invention discloses a kind of speckles to eliminate structure, including bearing, the driving motor being set on bearing and the fluorescent wheel being set on driving motor, and fluorescent wheel is equipped with diffusion sheet, it is characterised in that：The tail end of the driving motor is equipped with tail power output shaft and is equipped with connecting plate, the guiding mechanism that can support and guide connecting plate to lift and the resetting-mechanism that connection sheet reset can be made are equipped between the bearing and connecting plate, the bearing is equipped with polarization slot, and the tail power output shaft is equipped with the eccentric wheel that can be mutually squeezed with polarization slot and jack up driving motor.It can not only reach better ecchymose removing effect by above structure, and the original component of projecting apparatus is made full use of to be transformed, it is not only at low cost, but also save space, easy to process and assembly.
Description
Technical field
The present invention relates to the speckles of a kind of laser-projector, especially laser-projector to eliminate structure.
Background technology
Laser is a kind of high brightness, high directivity, sends out the light source of monochromatic associated beam, due to the plurality of advantages of laser,
Gradually it is applied to projection display technique field in recent years.But the speckle issue of laser light source is serious, and so-called speckle refers to coherent light
When irradiating coarse object, the light after scattering, since its wavelength is identical, phase-constant will generate dry in space in source
It relates to, some parts, which interfere, in space mutually grows, and has part to interfere cancellation, final the result is that occurring on the screen
Granular light and dark spot, these unfocused spots are in flicker state in human eye, and viewing for a long time is also easy to produce
Dizziness sense of discomfort more causes the deterioration of projected image quality, reduces the viewing experience of user.
From the principle for inhibiting speckle, generally include：Method with space superposition makes speckle refine；It is flat with the time
Equal method makes speckle be superimposed, and is weakened using human eye integral action；The coherence of laser light source is reduced with spectrum width is expanded,
And the method for operating frequency superposition weakens the coherence of light source.The prior art uses dissipating for rotation in laser delivery optics
It penetrates piece or diffusion sheet carries out dissipation spot, above-mentioned space superposition and time averaging principle is mainly utilized, by tearing light beam open
Divide multiple beamlets, speckle is refined, and the speckle pattern of different time points is overlapped and is homogenized, pass through the integral in human eye
Effect, makes speckle phenomena desalinate, and weakens.But depend merely on rotate diffusion sheet and ecchymose removing effect is limited in the prior art, it can not be effective
The display quality of projected picture is improved, thus drives diffusion sheet row linear reciprocating vibration to reach more now with using driving device
Good ecchymose removing effect, usual above-mentioned driving device are typically the driver based on additional electromagnetic coil or piezoelectric ceramics,
It is not only of high cost, but also because common projecting apparatus internal structural space very little, thus be not suitable in common projection
Upgrading is carried out inside instrument.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of speckle elimination structure.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of speckle elimination structure, including bearing, the driving motor being set on bearing and the fluorescence being set on driving motor
Wheel, fluorescent wheel are equipped with diffusion sheet, it is characterised in that：The tail end of the driving motor is equipped with tail power output shaft and the company of being equipped with
Fishplate bar is equipped with the guiding mechanism that can support and guide connecting plate to lift and can make company between the bearing and connecting plate
The resetting-mechanism that fishplate bar resets, the bearing are equipped with polarization slot, and the tail power output shaft is equipped with can be with polarization slot phase
The eccentric wheel for squeezing and jacking up driving motor.
The guiding mechanism includes two slide-bars being fixed on the support, and the connecting plate is equipped with to be coordinated with slide-bar
Slide opening.
The resetting-mechanism includes the resetting spring being set on slide-bar, and top is equipped with diameter and is more than slide-bar on the slide-bar
The axle cap of diameter, one end of the resetting spring are contacted with the end face of axle cap；The other end of the resetting spring and the top of bearing
Face contacts.
The bottom end of the slide-bar is equipped with screw rod, and the bearing is equipped with the screw hole coordinated with screw rod.
The connecting plate is made of transverse slat and the riser vertical with transverse slat, and the slide opening is located on transverse slat.
The polarization slot is arc groove.
The eccentric wheel is that circle is taken turns, and the tail power output shaft is connect with circle wheel bias.
The beneficial effects of the invention are as follows：The present invention using driving motor drive with its bias connect circle wheel rotate, with again
Position spring makes fluorescent wheel pump together, to reach better ecchymose removing effect, and makes full use of projecting apparatus former
There is component to be transformed, it is not only at low cost, but also save space, easy to process and assembly.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the detonation configuration figure of the present invention.
Specific implementation mode
Referring to Fig.1, Fig. 2, the invention discloses a kind of speckles to eliminate structure, including bearing 1, the drive that is set on bearing 1
Dynamic motor 2 and the fluorescent wheel 3 being set on driving motor 2, fluorescent wheel 3 are equipped with diffusion sheet 4, and bearing 1 is a T-shaped block, described
The tail end of driving motor 2 is equipped with tail power output shaft 5 and is equipped with connecting plate, and the driving motor 2 of magnetic tape trailer power output shaft 5 is outer
Purchase, thus tail power output shaft 5 and the specific connection structure portion of driving motor 2 are described in detail, and energy is equipped between the bearing 1 and connecting plate
Enough supports and the guiding mechanism for guiding connecting plate to lift and the resetting-mechanism that connection sheet reset can be made, the bearing 1
It is equipped with polarization slot 6, the tail power output shaft 5, which is equipped with, can squeeze with polarization 6 phase of slot and jack up driving motor 2 inclined
Heart wheel 7, the polarization slot 6 are arc groove, and the eccentric wheel 7 is that circle is taken turns, and the tail power output shaft 5 is connect with circle wheel bias,
Above structure is easy to process, thus saves cost, and cam can also be used in we certainly, can also realize same effect.
As shown, it includes two slide-bars 8 being fixed on bearing 1 to state guiding mechanism, the connecting plate is equipped with
The slide opening 9 coordinated with slide-bar 8, concrete structure is：By welding slip pipe on connecting plate, the endoporus of slip pipe is slide opening 9, this
Spline structure is stablized；The bottom end of the slide-bar 8 is equipped with screw rod 10, and the bearing 1 is equipped with the screw hole coordinated with screw rod 10（In figure not
It shows）, simple installation is coordinated by screw rod 10 and screw hole；The resetting-mechanism includes the resetting spring being set on slide-bar 8
11, top is equipped with the axle cap 14 that diameter is more than 8 diameter of slide-bar, one end and the axle cap 14 of the resetting spring 11 on the slide-bar 8
End face contact；The other end of the resetting spring 11 is contacted with the top surface of bearing 1, and knot can be also realized using resetting spring 11
Structure is simply easy to the advantages of purchasing and assembling.
As shown, the concrete structure of the connecting plate is：The connecting plate is by transverse slat 12 and vertical with transverse slat 12
Riser 13 is constituted, and the slide opening 9 is located on transverse slat 12, and transverse slat 12 is located above the top end face of bearing 1, and slide opening 9 can be with slide-bar 8
Cooperation, and make full use of the device space.
The principle of this structure is sketched：The front end of driving motor 2 is equipped with preceding power output shaft, preceding when driving motor 2 works
Power output shaft is rotated coaxially with tail power output shaft 5, and preceding power output shaft is connected and fixed with fluorescent wheel 3, to drive fluorescence
3 rotation of wheel, and tail power output shaft 5 drives circle wheel rotation, because tail power output shaft 5 is connect with circle wheel bias, thus is turning
During dynamic circle wheel outside with tail power output shaft 5 apart from part farther out close to arc groove when, the part and arc groove slot bottom
It squeezes, to be jacked up driving motor 2, connecting plate and fluorescent wheel 3 by circle wheel, connecting plate can press resetting spring 11 when jack-up
Contracting, to realize the rising movement of fluorescent wheel 3；When circle wheel outside with tail power output shaft 5 apart from closer part close to circular arc
When slot, which can keep certain distance with arc groove slot bottom, and resetting spring 11 can reset at this time, to push connecting plate, lead to
Crossing connecting plate drives driving motor 2, fluorescent wheel 3 to decline, to realize the decline movement of fluorescent wheel 3, to which fluorescent wheel 3 can be
It does of reciprocating vibration to reach better ecchymose removing effect while rotation, and the original component of projecting apparatus is made full use of to be transformed,
It is not only at low cost, but also save space, easy to process and assembly.
It is provided for the embodiments of the invention a kind of speckle elimination structure above, is described in detail, it is used herein
Principle and implementation of the present invention are described for specific case, and the explanation of above example is only intended to help to understand
The method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, having
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the present invention
Limitation.
Claims (7)
1. a kind of speckle eliminates structure, including bearing, the driving motor that is set on bearing and it is set to glimmering on driving motor
Halo, fluorescent wheel are equipped with diffusion sheet, it is characterised in that：The tail end of the driving motor is equipped with tail power output shaft and is equipped with
Connecting plate is equipped with the guiding mechanism that can support and guide connecting plate to lift and can make between the bearing and connecting plate
The resetting-mechanism of sheet reset is connected, the bearing is equipped with polarization slot, and the tail power output shaft is equipped with can be with polarization slot
The eccentric wheel for mutually squeezing and jacking up driving motor.
2. a kind of speckle according to claim 1 eliminates structure, it is characterised in that：The guiding mechanism includes two solid
Due to the slide-bar on bearing, the connecting plate is equipped with the slide opening coordinated with slide-bar.
3. a kind of speckle according to claim 2 eliminates structure, it is characterised in that：The resetting-mechanism includes being set in cunning
Resetting spring on axis, top is equipped with the axle cap that diameter is more than slide-bar diameter on the slide-bar, one end of the resetting spring with
The end face of axle cap contacts；The other end of the resetting spring is contacted with the top surface of bearing.
4. a kind of speckle according to claim 2 eliminates structure, it is characterised in that：The bottom end of the slide-bar is equipped with screw rod,
The bearing is equipped with the screw hole coordinated with screw rod.
5. a kind of speckle according to claim 2 eliminates structure, it is characterised in that：The connecting plate is by transverse slat and and transverse slat
Vertical riser is constituted, and the slide opening is located on transverse slat.
6. a kind of speckle according to claim 1 eliminates structure, it is characterised in that：The polarization slot is arc groove.
7. a kind of speckle according to claim 1 eliminates structure, it is characterised in that：The eccentric wheel is that circle is taken turns, the tail
Power output shaft is connect with circle wheel bias.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889373.7A CN108803223A (en) | 2018-08-07 | 2018-08-07 | A kind of speckle elimination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889373.7A CN108803223A (en) | 2018-08-07 | 2018-08-07 | A kind of speckle elimination structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108803223A true CN108803223A (en) | 2018-11-13 |
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ID=64079442
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810889373.7A Pending CN108803223A (en) | 2018-08-07 | 2018-08-07 | A kind of speckle elimination structure |
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| CN (1) | CN108803223A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244507A (en) * | 2019-07-29 | 2019-09-17 | 北京镭创高科光电科技有限公司 | A kind of laser light source and optical projection system |
| CN113467074A (en) * | 2021-06-30 | 2021-10-01 | 江西晶浩光学有限公司 | Light polarization angle adjusting device, camera module and electronic equipment |
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| JP2011164627A (en) * | 2008-07-23 | 2011-08-25 | Mitsubishi Electric Corp | Projection type image display apparatus |
| CN202330967U (en) * | 2011-11-07 | 2012-07-11 | 深圳市保千里电子有限公司 | Laser illumination device of laser light filling and homogenizing |
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| US20140125956A1 (en) * | 2011-07-13 | 2014-05-08 | Nec Display Solutions, Ltd. | Light source device and projection-type display device |
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| JP2015114621A (en) * | 2013-12-13 | 2015-06-22 | 大日本印刷株式会社 | Illumination device, projection device, irradiation device and optical element |
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| CN206209209U (en) * | 2016-12-07 | 2017-05-31 | 深圳市佶达德科技有限公司 | A kind of fiber-optic vibration device of use compression spring |
| CN206594375U (en) * | 2016-12-07 | 2017-10-27 | 深圳市佶达德科技有限公司 | A kind of antiwear fiber-optic vibration device |
| CN206805019U (en) * | 2017-06-08 | 2017-12-26 | 北京三盟恒业光电科技有限公司 | A kind of laser projection disappears speckle device |
| CN208506481U (en) * | 2018-08-07 | 2019-02-15 | 广东联大光电有限公司 | A kind of speckle elimination structure |
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2018
- 2018-08-07 CN CN201810889373.7A patent/CN108803223A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011164627A (en) * | 2008-07-23 | 2011-08-25 | Mitsubishi Electric Corp | Projection type image display apparatus |
| US20140125956A1 (en) * | 2011-07-13 | 2014-05-08 | Nec Display Solutions, Ltd. | Light source device and projection-type display device |
| CN202330967U (en) * | 2011-11-07 | 2012-07-11 | 深圳市保千里电子有限公司 | Laser illumination device of laser light filling and homogenizing |
| CN103279000A (en) * | 2013-06-03 | 2013-09-04 | 吉林省晟世源科技有限公司 | Laser illuminating device which homogenizes with spinning light homogenizing sheet |
| JP2015114621A (en) * | 2013-12-13 | 2015-06-22 | 大日本印刷株式会社 | Illumination device, projection device, irradiation device and optical element |
| CN104375280A (en) * | 2014-11-20 | 2015-02-25 | 西安炬光科技有限公司 | Semiconductor laser unit system eliminating laser speckles |
| CN106597785A (en) * | 2015-10-14 | 2017-04-26 | 海信集团有限公司 | Fluorescent wheel and two-color laser source |
| CN206209209U (en) * | 2016-12-07 | 2017-05-31 | 深圳市佶达德科技有限公司 | A kind of fiber-optic vibration device of use compression spring |
| CN206594375U (en) * | 2016-12-07 | 2017-10-27 | 深圳市佶达德科技有限公司 | A kind of antiwear fiber-optic vibration device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244507A (en) * | 2019-07-29 | 2019-09-17 | 北京镭创高科光电科技有限公司 | A kind of laser light source and optical projection system |
| CN113467074A (en) * | 2021-06-30 | 2021-10-01 | 江西晶浩光学有限公司 | Light polarization angle adjusting device, camera module and electronic equipment |
| CN113467074B (en) * | 2021-06-30 | 2023-04-04 | 江西晶浩光学有限公司 | Light polarization angle adjusting device, camera module and electronic equipment |
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