CN109270704A - A kind of dynamic light-source system for being used for laser dissipation spot - Google Patents
A kind of dynamic light-source system for being used for laser dissipation spot Download PDFInfo
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- CN109270704A CN109270704A CN201811392313.0A CN201811392313A CN109270704A CN 109270704 A CN109270704 A CN 109270704A CN 201811392313 A CN201811392313 A CN 201811392313A CN 109270704 A CN109270704 A CN 109270704A
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- 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
- 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
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
-
- 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
- G02B27/30—Collimators
Abstract
The invention discloses a kind of light-source systems for being dynamically used for laser dissipation spot, are related to technical field of laser display.Laser comprising light source assembly, for issuing light source assembly close shrink beam system, focus pack and the dodging device of beam；The focus pack is arranged between shrink beam system and dodging device, and the focus pack, which is used to enter in dodging device after the laser beam focusing of shrink beam system, carries out even light；The light source assembly includes laser fixed substrate, laser, vibration component and collimator assembly, several perforative laser fixation holes are offered in the laser fixed substrate, laser is respectively and fixedly provided in each laser fixation hole, each laser is respectively connected with collimator assembly, and the vibration component is connected in laser fixed substrate.
Description
Technical field
The present invention relates to technical field of laser display, in particular to a kind of light source system for being dynamically used for laser dissipation spot
System.
Background technique
Laser makes it have other light sources incomparable in terms of the color of display field because of its good monochromaticjty
Advantage, tens of thousands of hours service life are but also the market competitiveness of laser television is substantially improved easily.Laser display market is being just at present
The change in the period in high speed development, technology is also maked rapid progress, and the product of mainstream is still that one-wavelength laser adds fluorescent powder side at present
The laser television of case, but with the development of laser technique, double-colored, three color laser televisions have become following house show direction.
Either monochromatic, double-colored or three color laser televisions, the extremely narrow breadth of spectrum line of laser can all introduce longer relevant
Length (or coherence time), if without eliminating coherence processing and directly shown on the projection screen, on the screen we
It just can be appreciated that the image of apparent interference fringe, namely the speckle usually described in us, speckle have extremely image quality
Serious influence can each be generated especially for three colour purity laser televisions since its R, G, B three primary colours is all made of laser
Speckle, wherein red laser is due to line width longest, and coherence length (coherence time) longest, interference most serious, speckle is also most bright
Aobvious, it may be said that can the solution of speckle issue be the necessary condition that is directly related to three color laser televisions and introduce to the market.
There are many processing modes for speckle issue in laser display field at present, the overwhelming majority is all in light
Carry out the decrease of speckle in road, such as plus diffusion sheet carry out speckle and homogenize, or be added and be polarized the polarization that device changes light beam
Characteristic, but these modes all have some limitations during practice.
In three color laser televisions, since the respective speckle situation of its three primary colours is different, it is arranged in the optical path identical
Dissipation spot device is different for assorted effect, it is difficult to seek suitable technical specification while meet assorted dissipation spot
The case where seeking suitable intermediate specification is difficult to it is required that existing.
Summary of the invention
Insufficient in above-mentioned background technique the purpose of the present invention is overcoming, the present invention is mentioned from the source laser of speckle
The scheme of the coherence of laser even is eliminated for a kind of decrease from light source, to solve speckle issue.
In order to reach above-mentioned technical effect, the present invention takes following technical scheme:
A kind of dynamic light-source system for being used for laser dissipation spot, comprising light source assembly, for issue light source assembly
Laser close shrink beam system, focus pack and the dodging device of beam；The focus pack is arranged in shrink beam system and even light
Between device, the focus pack for will after the laser beam focusing of shrink beam system enter dodging device in carry out it is even
Light；The light source assembly includes laser fixed substrate, laser, vibration component and collimator assembly, the fixed base of the laser
Several perforative laser fixation holes are offered on plate, are respectively and fixedly provided with laser, each laser in each laser fixation hole
It is respectively connected with collimator assembly, the vibration component is connected in laser fixed substrate.
The dynamic light-source system for being used for laser dissipation spot provided by the invention, the laser beam warp that the light source assembly issues
Shrink beam system carries out light combination, enters dodging device after focus pack receives light after light combination and carries out shimming.The present invention can be for not
The laser of co-wavelength designs the different speckle parameters that disappear, and carrying out dissipation spot from the principle of interference can significantly more efficient decrease
It even is eliminated laser speckle, solves the problems, such as in laser display especially to exist because speckle issue bring image quality is bad
Different amplitudes is arranged to meet different-waveband for the interference that disappears in laser in three color laser display technologies for different wave length
Phase requirements, for push three color laser display technologies development it is especially helpful.
Further, the laser fixation hole in the laser fixed substrate is discrete arrangement or array arrangement.
Further, the laser fast axle of laser and slow axis of laser during arrangement is staggered.
Further, the laser fixation hole in the laser fixed substrate is the discrete arrangement of circular ring shape, wherein one
A laser fixation hole is arranged at the center of laser fixed substrate, remaining laser fixation hole is arranged at equal intervals
Laser fixation hole at the heart is on the annulus in the center of circle, and the slow-axis direction of laser is vertical with the fast axis direction of laser, institute
The wavelength for stating laser is identical.
Further, the vibration component is several mutually independent vibration micromodules, the number of the vibration micromodule
Amount is equal with the quantity of laser, and each vibration micromodule is connected with corresponding laser.
Further, the array arrangement that the laser fixation hole in the laser fixed substrate is square, and laser
The slow-axis direction of device and the fast axis direction of laser are vertical, and the wavelength of the laser is identical.
Further, the vibration component is vibration micromodule, the quantity of the vibration micromodule and the quantity of laser
Equal, each vibration micromodule is connected with corresponding laser, and the fast axis direction of the slow-axis direction of laser and laser
Vertically, the wavelength of the laser is identical.
Further, the vibration component is vibration micromodule, the quantity of the vibration micromodule and the quantity of laser
Equal, each vibration micromodule is connected with corresponding laser, and the fast axis direction of the slow-axis direction of laser and laser
Vertically, the laser be simultaneously selection tri- different wave lengths of R, G, B laser.
Further, the laser fixation hole in the laser fixed substrate is the discrete arrangement of circular ring shape, wherein one
A laser fixation hole is arranged at the center of laser fixed substrate, remaining laser fixation hole is arranged at equal intervals
Laser fixation hole at the heart is on the annulus in the center of circle, and the slow-axis direction of laser is vertical with the fast axis direction of laser, institute
Stating vibration component is several mutually independent vibration micromodules, the quantity and the quantity phase of laser of the vibration micromodule
Deng each vibration micromodule is connected with corresponding laser；Tri- different wave lengths of R, G, B that the laser is while selecting
Laser.
Further, the direction of vibration of the vibration component is along optical axis direction or along the direction perpendicular to optical axis.
Further, the collimator assembly is more lenticules or microlens array.
Further, the laser beam that the laser issues is single side's light combination.
Further, the laser beam that the laser the issues light combination by way of reflection from different directions.
Further, the laser is semiconductor laser or all solid state laser.
Compared with prior art, the present invention have it is below the utility model has the advantages that
The present invention can design the different speckle parameters that disappear for the laser of different wave length, from the principle of interference into
Row dissipation spot, which significantly more efficient can weaken, even is eliminated laser speckle, solves in laser display because speckle issue bring is drawn
The bad problem of face quality, especially in three color laser display technologies for different wave length laser be arranged different amplitudes with
Meet different-waveband for the phase requirements for the interference that disappears, for pushing the development of three color laser display technologies especially helpful.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the light-source system for laser dissipation spot of the invention；
Fig. 2 is that two column monochromatic waves of the invention are superimposed schematic diagram；
Fig. 3 is a kind of light source assembly schematic diagram of the invention；
Fig. 4 is the discrete arrangement schematic diagram of a kind of laser of the invention；
Fig. 5 is discrete arrangement laser speed of the invention, laser slow-axis direction schematic diagram is；
Fig. 6 is laser array arrangement schematic diagram of the invention；
Fig. 7 is the light source assembly schematic diagram that vibration component is respectively set in single laser of the invention；
Fig. 8 is laser of the invention and collimator assembly schematic diagram；
Fig. 9 is a kind of light combination mode schematic diagram of light source assembly of the invention；
Figure 10 is a kind of light combination mode schematic diagram of light source assembly of the invention.
Appended drawing reference: 10- light source assembly, 11- laser fixed substrate, 12- laser fixation hole, 13- vibration component,
14- laser, 15- collimator assembly, 20- shrink beam system, 30- focus pack, 40- dodging device, 131- vibrate micromodule.
Specific embodiment
Below with reference to the embodiment of the present invention, the invention will be further elaborated.
Embodiment:
As Figure 1-10 shows, a kind of dynamic light-source system for being used for laser dissipation spot, comprising light source assembly 10, for will
The laser that light source assembly 10 issues close shrink beam system 20, focus pack 30 and the dodging device 40 of beam；The focusing group
Part 30 is arranged between shrink beam system 20 and dodging device 40, and the focus pack 30 is used for the laser Jing Guo shrink beam system 20
Light beam enters in dodging device 40 after focusing carries out even light；The light source assembly 10 includes laser fixed substrate 11, laser
14, vibration component 13 and collimator assembly 15 offer several perforative laser fixation holes in the laser fixed substrate 11
12, laser 14 is respectively and fixedly provided in each laser fixation hole 12, and each laser 14 is respectively connected with collimator assembly 15, the vibration
Dynamic component 13 is connected in laser fixed substrate 11.
The dynamic light-source system for being used for laser dissipation spot provided by the invention, the laser beam that the light source assembly 10 issues
Light combination is carried out through shrink beam system 20, enters dodging device 40 after focus pack 30 receives light after light combination and carries out shimming.The present invention can
The different speckle parameters that disappear are designed with the laser 14 for different wave length, carrying out dissipation spot from the principle of interference can be more
Effective weaken even is eliminated laser speckle, solves in laser display and asks because speckle issue bring image quality is bad
Different amplitudes is arranged to meet different-waveband in topic, the laser 14 especially in three color laser display technologies for different wave length
For the phase requirements for the interference that disappears, for pushing the development of three color laser display technologies especially helpful.
Further, the laser fixation hole 12 in the laser fixed substrate 11 is discrete arrangement or array row
Cloth.
Further, the slow axis staggered row of the laser 14 fast axle of laser 14 and laser 14 during arrangement
Cloth.
Further, the laser fixation hole 12 in the laser fixed substrate 11 is the discrete arrangement of circular ring shape,
In, a laser fixation hole 12 is arranged at the center of laser fixed substrate 11, remaining laser fixation hole 12 is equidistant
The laser fixation hole 12 being arranged at center on the annulus in the center of circle, and the slow-axis direction of laser 14 and laser 14
Fast axis direction it is vertical, the wavelength of the laser 14 is identical.
Further, the vibration component 13 is several mutually independent vibration micromodules 131, the vibration micromodule
131 quantity is equal with the quantity of laser 14, and each vibration micromodule 131 is connected with corresponding laser 14.
Further, the array arrangement that the laser fixation hole 12 in the laser fixed substrate 11 is square, and
The slow-axis direction of laser 14 is vertical with the fast axis direction of laser 14, and the wavelength of the laser 14 is identical.
Further, the vibration component 13 is vibration micromodule 131, the quantity and laser of the vibration micromodule 131
The quantity of device 14 is equal, and each vibration micromodule 131 and corresponding laser 14 connect, and the slow-axis direction of laser 14 with
The fast axis direction of laser 14 is vertical, and the wavelength of the laser 14 is identical.
Further, the vibration component 13 is vibration micromodule 131, the quantity and laser of the vibration micromodule 131
The quantity of device 14 is equal, and each vibration micromodule 131 and corresponding laser 14 connect, and the slow-axis direction of laser 14 with
The fast axis direction of laser 14 is vertical, the laser 14 be simultaneously selection tri- different wave lengths of R, G, B laser 14.
Further, the laser fixation hole 12 in the laser fixed substrate 11 is the discrete arrangement of circular ring shape,
In, a laser fixation hole 12 is arranged at the center of laser fixed substrate 11, remaining laser fixation hole 12 is equidistant
The laser fixation hole 12 being arranged at center on the annulus in the center of circle, and the slow-axis direction of laser 14 and laser 14
Fast axis direction it is vertical, the vibration component 13 be several mutually independent vibration micromodules 131, the vibration micromodule
131 quantity is equal with the quantity of laser 14, and each vibration micromodule 131 is connected with corresponding laser 14；It is described to swash
Light device 14 be simultaneously selection tri- different wave lengths of R, G, B laser 14.
Further, the direction of vibration of the vibration component 13 is along optical axis direction or along the direction perpendicular to optical axis.
Further, the collimator assembly 15 is more lenticules or microlens array.
Further, the laser beam that the laser 14 issues is single side's light combination.
Further, the laser beam that the laser 14 the issues light combination by way of reflection from different directions.
Further, the laser 14 is semiconductor laser 14 or all solid state laser 14.
Embodiment 1:
As shown in Figure 1, a kind of light-source system for being dynamically used for laser dissipation spot, comprising light source assembly 10, is used for light
The laser that source component 10 issues close shrink beam system 20, focus pack 30 and the dodging device 40 of beam；The focus pack
30 are arranged between shrink beam system 20 and dodging device 40, and the focus pack 30 is used for the laser light Jing Guo shrink beam system 20
Beam enters in dodging device 40 after focusing carries out even light.
The light source assembly 10 includes laser fixed substrate 11, laser 14, vibration component 13 and collimator assembly 15, institute
It states and offers several perforative laser fixation holes 12 in laser fixed substrate 11, it is fixed in each laser fixation hole 12
There is laser 14, each laser 14 is respectively connected with collimator assembly 15, and the vibration component 13 is connected to laser fixed substrate
On 11.Shown in Fig. 3 is a kind of schematic diagram of light source assembly 10, this is a kind of schematic diagram of principle certainly, specific implementation
Mode need to specifically be designed in conjunction with practical devices.
In present embodiment, the laser 14 of identical central wavelength is arranged in laser fixed substrate 11 with discrete, row
Mode for cloth can carry out any reasonable layout according to demand, and Fig. 4 gives one of the present embodiment discrete way arrangement,
The fast axle of laser 14 and the direction of the slow axis of laser 14 are staggered when laser 14 is arranged simultaneously, it is shown in fig. 5 to be
The fast axis direction of various lasers 14 on the same annulus of the arrangement mode, each 14 slow-axis direction of laser is vertical with fast axis direction,
Certainly, arragement direction shown here is a kind of signal.
The laser 14 arranged in the laser fixed substrate 11 is as shown in figure 8, laser 14 can be and partly lead in figure
Body laser 14 is also possible to all solid state laser 14, has collimator assembly 15 to collimate light beam after each laser 14, institute
Stating vibration component 13 can drive entire light source assembly 10 to carry out the vibration of high-frequency round trip cycle, and direction of vibration can be along optical axis side
To the requirement described in summary of the invention about amplitude can also should be met along the direction perpendicular to optical axis, amplitude.According to
As shown in Fig. 2, wherein δ is vibration phase difference of the light source S1 and S2 at site P,It is light source S1 at site P
Vibration phase,For vibration phase of the light source S2 at site P, d1For light source S1 to the distance of site P, d2It is arrived for light source S2
The distance of site P, λ are the central wavelength of laser 14,For the initial phase of light source S1,For the initial phase of light source S2, together
When by site P distribution of amplitudes formula:
Wherein I1Light intensity for light source S1 in site P, I2It is light source S2 in the light intensity of site P, Section 3 is interference term, is led to
The amplitude that vibration component 13 controls laser 14 is crossed, so that the vibration phase difference of site P constantly changes, wherein laser 14 is located at
Δ δ=2n π should be met with the difference for being superimposed the vibration phase difference generated when being located at vibration balancing point respectively when the extreme position of both ends,
Wherein n is 0 integer, to eliminate interference term or make interference term is positive and negative in vibration processes to offset, due to human eye
The integrating effect of vision, imaging is considered as uniform in the sufficiently high situation of vibration frequency.
Embodiment 2:
As shown in Figure 1, present embodiment gives a kind of array arrangement mode of laser 14 relative to embodiment 1, make
It is more compact to obtain 10 structure of light source assembly, described 10 drawing reference Fig. 3 of light source assembly, if offering in laser fixed substrate 11
Perforative laser fixation hole 12 is done, laser 14 is respectively and fixedly provided in each laser fixation hole 12, each laser 14 connects
It is connected to collimator assembly 15, the vibration component 13 is connected in laser fixed substrate 11.Wherein in laser fixed substrate 11
The arrangement mode and fast axis direction of laser 14 refer to Fig. 6, wherein the wavelength of laser 14 used is identical, for vibration component 13
Requirement it is same as Example 1, just do not do excessively repeat herein.
Embodiment 3:
In present embodiment, the vibration component 13 is several vibration micromodules 131, the vibration micromodule 131
Quantity is equal with the quantity of laser 14, and each vibration micromodule 131 is connected with corresponding laser 14, and laser 14
Slow-axis direction is vertical with the fast axis direction of laser 14.For the individually designed vibration micromodule 131 of each laser 14, so that often
The vibration mode of a laser 14 is independent, and specific schematic diagram refers to Fig. 7, is illustrated as 14 array arrangement mode of laser, institute
14 fast axis direction of laser is stated with reference to Fig. 6, in the laser 14 that the amplitude of the vibration micromodule 131 is controlled relative to it
Cardiac wave is long to carry out independent design.
14 central wavelength of laser used may be the same or different in present embodiment, and the light source assembly 10 can
To select the laser 14 of tri- colors of R, G, B to be integrated in same laser fixed substrate 11 simultaneously, list also can choose
The laser 14 of one wavelength is integrated in same laser fixed substrate 11, and the direction of vibration of each vibration micromodule 131 can
It to be designed along optical axis direction, can also be designed along the direction perpendicular to optical axis, each vibration 131 mode of vibration of micromodule is mutually only
It is vertical.
Embodiment 4:
Present embodiment is changed on the basis of embodiment 3, by the laser in the laser fixed substrate 11
14 carry out discrete arrangement, and specific arrangement mode and fast axis direction refer to Fig. 4 and Fig. 5 respectively, and each for the discrete arrangement swashs
Light device 14 separately designs vibration micromodule 131, certainly, same here to meet requirement of the various lasers 14 for dissipation spot
Laser 14 in a fixed substrate can choose the laser 14 of Same Wavelength, also can integrate swashing for R, G, B different wave length
Light device 14 need to be designed the amplitude and direction of vibration of vibration micromodule 131 just for the laser 14 of different wave length by wavelength.
Embodiment 5:
In embodiment 1-4, all embodiments are single light source assembly 10, in the present embodiment, the light source group
Part 10 designs needs according to system, can be combined use, both multi-direction can also pass through reflection with single direction light combination
Form light combination, such as the light combination mode of Fig. 9 and Figure 10, wherein O1—O7It is the light source of different directions, can is above-mentioned light
One of 10 embodiment of source component, but should be noted that the wavelength of corresponding laser 14 used is anti-to carry out when carrying out light combination
The Film Design of plane is penetrated, only provides a kind of reference of light combination mode here certainly, and without constraint.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (14)
1. a kind of light-source system for being dynamically used for laser dissipation spot, which is characterized in that comprising light source assembly, be used for light source group
The laser that part issues close shrink beam system, focus pack and the dodging device of beam；The focus pack is arranged in shrink beam system
Between system and dodging device, the focus pack after the laser beam focusing of shrink beam system for that will enter in dodging device
Carry out even light；The light source assembly includes laser fixed substrate, laser, vibration component and collimator assembly, the laser
Several perforative laser fixation holes are offered in fixed substrate, are respectively and fixedly provided with laser in each laser fixation hole, each
Laser is respectively connected with collimator assembly, and the vibration component is connected in laser fixed substrate.
2. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 1, which is characterized in that described to swash
Laser fixation hole in light device fixed substrate is discrete arrangement or array arrangement.
3. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 2, which is characterized in that described to swash
The light device fast axle of laser and slow axis of laser during arrangement is staggered.
4. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 3, which is characterized in that described to swash
Laser fixation hole in light device fixed substrate is the discrete arrangement of circular ring shape, wherein a laser fixation hole setting is swashing
At the center of light device fixed substrate, the laser fixation hole at center is arranged at equal intervals as circle in remaining laser fixation hole
On the annulus of the heart, and the slow-axis direction of laser is vertical with the fast axis direction of laser, and the wavelength of the laser is identical.
5. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 4, which is characterized in that the vibration
Dynamic component is several mutually independent vibration micromodules, and the quantity of the vibration micromodule is equal with the quantity of laser, often
A vibration micromodule is connected with corresponding laser.
6. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 3, which is characterized in that described to swash
The array arrangement that laser fixation hole in light device fixed substrate is square, and the slow-axis direction of laser and laser is fast
Axis direction is vertical, and the wavelength of the laser is identical.
7. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 6, which is characterized in that the vibration
Dynamic component is vibration micromodule, and the quantity of the vibration micromodule is equal with the quantity of laser, each vibration micromodule and phase
Corresponding laser connection, and the slow-axis direction of laser is vertical with the fast axis direction of laser, the wavelength phase of the laser
Together.
8. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 6, which is characterized in that the vibration
Dynamic component is vibration micromodule, and the quantity of the vibration micromodule is equal with the quantity of laser, each vibration micromodule and phase
Corresponding laser connection, and the slow-axis direction of laser is vertical with the fast axis direction of laser, the laser is while selecting
R, the laser of tri- different wave lengths of G, B.
9. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 5, which is characterized in that described to swash
Laser fixation hole in light device fixed substrate is the discrete arrangement of circular ring shape, wherein a laser fixation hole setting is swashing
At the center of light device fixed substrate, the laser fixation hole at center is arranged at equal intervals as circle in remaining laser fixation hole
On the annulus of the heart, and the slow-axis direction of laser is vertical with the fast axis direction of laser, and the vibration component is that several are mutual
Independent vibration micromodule, it is described vibration micromodule quantity it is equal with the quantity of laser, each vibration micromodule with relatively
The laser connection answered；The laser be simultaneously selection tri- different wave lengths of R, G, B laser.
10. -9 any described one kind are dynamically used for the light-source system of laser dissipation spot according to claim 1, feature exists
In the direction of vibration of the vibration component is along optical axis direction or along the direction perpendicular to optical axis.
11. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 10, which is characterized in that described
Collimator assembly is more lenticules or microlens array.
12. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 11, which is characterized in that described
The laser beam that laser issues is single side's light combination.
13. a kind of light-source system for being dynamically used for laser dissipation spot according to claim 11, which is characterized in that described
The laser beam light combination by way of reflection from different directions that laser issues.
14. -7 any described one kind are dynamically used for the light-source system of laser dissipation spot according to claim 1, feature exists
In the laser is semiconductor laser or all solid state laser.
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|---|---|---|---|
| CN201811392313.0A CN109270704B (en) | 2018-11-21 | 2018-11-21 | Dynamic light source system for laser speckle elimination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392313.0A CN109270704B (en) | 2018-11-21 | 2018-11-21 | Dynamic light source system for laser speckle elimination |
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| CN109270704B CN109270704B (en) | 2020-10-23 |
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| CN1790094A (en) * | 2004-12-15 | 2006-06-21 | 三星电子株式会社 | Illumination system to eliminate laser speckle and projection system employing the same |
| CN201133971Y (en) * | 2007-12-26 | 2008-10-15 | 北京中视中科光电技术有限公司 | Device and apparatus for eliminating laser display speckle |
| CN102129130A (en) * | 2010-01-15 | 2011-07-20 | 富港电子（东莞）有限公司 | Light source device and method for reducing speckles |
| CN106444245A (en) * | 2016-08-26 | 2017-02-22 | 湖北久之洋红外系统股份有限公司 | Speckle-free three-primary-color laser light source |
| CN106569378A (en) * | 2015-10-08 | 2017-04-19 | 海信集团有限公司 | Laser speckle elimination light path, double color laser light source and three color laser light source |
-
2018
- 2018-11-21 CN CN201811392313.0A patent/CN109270704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1790094A (en) * | 2004-12-15 | 2006-06-21 | 三星电子株式会社 | Illumination system to eliminate laser speckle and projection system employing the same |
| CN201133971Y (en) * | 2007-12-26 | 2008-10-15 | 北京中视中科光电技术有限公司 | Device and apparatus for eliminating laser display speckle |
| CN102129130A (en) * | 2010-01-15 | 2011-07-20 | 富港电子（东莞）有限公司 | Light source device and method for reducing speckles |
| CN106569378A (en) * | 2015-10-08 | 2017-04-19 | 海信集团有限公司 | Laser speckle elimination light path, double color laser light source and three color laser light source |
| CN106444245A (en) * | 2016-08-26 | 2017-02-22 | 湖北久之洋红外系统股份有限公司 | Speckle-free three-primary-color laser light source |
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| Publication number | Publication date |
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| CN109270704B (en) | 2020-10-23 |
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