CN208506481U - A kind of speckle elimination structure - Google Patents
A kind of speckle elimination structure Download PDFInfo
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- CN208506481U CN208506481U CN201821264064.2U CN201821264064U CN208506481U CN 208506481 U CN208506481 U CN 208506481U CN 201821264064 U CN201821264064 U CN 201821264064U CN 208506481 U CN208506481 U CN 208506481U
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- support
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- output shaft
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Abstract
The utility model discloses a kind of speckles to eliminate structure, including support, the driving motor being set on support and the fluorescent wheel being set on driving motor, fluorescent wheel is equipped with diffusion sheet, it is characterized by: the tail end of the driving motor is equipped with tail power output shaft and is equipped with connecting plate, it is equipped with the guiding mechanism that can support and guide connecting plate to go up and down between the support and connecting plate and the resetting-mechanism for connecting sheet reset can be made, the support is equipped with polarization slot, the tail power output shaft is equipped with the eccentric wheel that can mutually squeeze with polarization slot and jack up driving motor.Better ecchymose removing effect can not only be reached by above structure, and the original component of projector 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 utility model relates to the speckles of a kind of laser-projector, especially laser-projector to eliminate structure.
Background technique
Laser is a kind of high brightness, high directivity, issues 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
Source is when irradiating coarse object, light after scattering, and since its wavelength is identical, phase-constant will generate dry in space
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 flashing state in human eye, and viewing is also easy to produce for a long time
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: the method with space superposition refines speckle；It is flat with the time
Equal method is superimposed speckle, 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, desalinates speckle phenomena, 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 usually the driver based on additional electromagnetic coil or piezoelectric ceramics,
It is not only at high cost, but also because common projector internal structural space very little, thus be not suitable in common projection
Upgrading is carried out inside instrument.
Summary of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of speckle elimination structure.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of speckle elimination structure, including support, the driving motor being set on support and is set on driving motor
Fluorescent 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 installation
Have connecting plate, between the support and connecting plate be equipped with can support and guide connecting plate go up and down guiding mechanism and can
Make the resetting-mechanism for connecting sheet reset, the support is equipped with polarization slot, and the tail power output shaft is equipped with can be with polarization
Slot mutually squeeze and by driving motor jack up eccentric wheel.
The guiding mechanism includes two slide-bars being fixed on the support, and the connecting plate is equipped with to be cooperated with slide-bar
Slide opening.
The resetting-mechanism includes the reset spring being set on slide-bar, and top is equipped with diameter greater than slide-bar on the slide-bar
The axle cap of diameter, one end of the reset spring are contacted with the end face of axle cap；The other end of the reset spring and the top of support
Face contact.
The bottom end of the slide-bar is equipped with screw rod, and the support is equipped with the screw hole cooperated 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 circle wheel, and the tail power output shaft is connect with circle wheel bias.
The beneficial effects of the utility model are: the utility model drives the circle connecting with its bias to rotate using driving motor
It is dynamic, so that fluorescent wheel is pumped together with reset spring, to reach better ecchymose removing effect, and makes full use of throwing
The original component of shadow instrument is transformed, not only at low cost, but also saves space, easy to process and assembly.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure figure of the utility model；
Fig. 2 is the detonation configuration figure of the utility model.
Specific embodiment
Referring to Fig.1, Fig. 2, the utility model discloses a kind of speckles to eliminate structure, including support 1, is set on support 1
Driving motor 2 and the fluorescent wheel 3 that is set on driving motor 2, fluorescent wheel 3 be equipped with diffusion sheet 4, support 1 is a T-shaped block,
The tail end of the driving motor 2 is equipped with tail power output shaft 5 and is equipped with connecting plate, the driving motor 2 of magnetic tape trailer power output shaft 5
For outsourcing, thus the specific connection structure portion of tail power output shaft 5 and driving motor 2 is described in detail, and sets between the support 1 and connecting plate
There is the guiding mechanism that can support and guide connecting plate to go up and down and the resetting-mechanism for connecting sheet reset, the branch can be made
Seat 1 is equipped with polarization slot 6, and the tail power output shaft 5, which is equipped with, can squeeze with polarization 6 phase of slot and jack up driving motor 2
Eccentric wheel 7, the polarization slot 6 is arc groove, and the eccentric wheel 7 is circle wheel, and the tail power output shaft 5 is eccentric even with circle wheel
It connects, 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, the guiding mechanism includes two slide-bars 8 being fixed on support 1, set on the connecting plate
There is the slide opening 9 cooperated with slide-bar 8, specific structure is: by welding slip pipe on connecting plate, the inner hole of slip pipe is slide opening 9,
Such stable structure；The bottom end of the slide-bar 8 is equipped with screw rod 10, and the support 1 is equipped with the screw hole cooperated with screw rod 10 (in figure
Do not show), simplicity is coupled by screw rod 10 and screw hole；The resetting-mechanism includes the reset bullet being set on slide-bar 8
Spring 11, top is equipped with the axle cap 14 that diameter is greater than 8 diameter of slide-bar, one end of the reset spring 11 and axle cap on the slide-bar 8
14 end face contact；The other end of the reset spring 11 is contacted with the top surface of support 1, also can be realized using reset spring 11
The advantages of structure is simply easy to purchase and assemble.
As shown, the specific structure of the connecting plate are as follows: 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 support 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 and tail power output shaft 5 apart from farther away part 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 reset spring 11 when jack-up
Contracting, to realize that the rising of fluorescent wheel 3 is mobile；When the part that circle wheel outside is closer with tail power output shaft 5 is close to circular arc
When slot, the part and arc groove slot bottom can keep certain distance, and reset 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 that the decline of fluorescent wheel 3 is mobile, so that fluorescent wheel 3 can be
It does of reciprocating vibration to reach better ecchymose removing effect while rotation, and the original component of projector is made full use of to be transformed,
It is not only at low cost, but also save space, easy to process and assembly.
Structure is eliminated to a kind of speckle provided by the utility model embodiment above, is described in detail, herein
Specific case is applied to be expounded the principles of the present invention and embodiment, the explanation of above example is only intended to
Help understands the method and its core concept of the utility model；At the same time, for those skilled in the art, it is practical according to this
Novel thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is construed as a limitation of the present invention.
Claims (7)
1. a kind of speckle eliminates structure, including support, the driving motor being set on support 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 go up and down and can make between the support and connecting plate
The resetting-mechanism of sheet reset is connected, the support 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 support, the connecting plate is equipped with the slide opening cooperated 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
Reset spring on axis, top is equipped with the axle cap that diameter is greater than slide-bar diameter on the slide-bar, one end of the reset spring with
The end face of axle cap contacts；The other end of the reset spring is contacted with the top surface of support.
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 support is equipped with the screw hole cooperated 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 circle wheel, the tail
Power output shaft is connect with circle wheel bias.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264064.2U CN208506481U (en) | 2018-08-07 | 2018-08-07 | A kind of speckle elimination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821264064.2U CN208506481U (en) | 2018-08-07 | 2018-08-07 | A kind of speckle elimination structure |
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| Publication Number | Publication Date |
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| CN208506481U true CN208506481U (en) | 2019-02-15 |
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| CN201821264064.2U Active CN208506481U (en) | 2018-08-07 | 2018-08-07 | A kind of speckle elimination structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803223A (en) * | 2018-08-07 | 2018-11-13 | 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 CN201821264064.2U patent/CN208506481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803223A (en) * | 2018-08-07 | 2018-11-13 | 广东联大光电有限公司 | A kind of speckle elimination structure |
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