CN105116679B - Laser illuminator system, laser projection system and laser display system - Google Patents
Laser illuminator system, laser projection system and laser display system Download PDFInfo
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- CN105116679B CN105116679B CN201510646014.5A CN201510646014A CN105116679B CN 105116679 B CN105116679 B CN 105116679B CN 201510646014 A CN201510646014 A CN 201510646014A CN 105116679 B CN105116679 B CN 105116679B
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Abstract
The present invention discloses a kind of laser illuminator system, laser projection system and laser display system, and laser illuminator system includes primary laser source；The wavelength difference of at least one regulation and control light source, each regulation and control light source output light beam and primary laser source outgoing laser beam is more than or equal to 5nm and less than or equal to 30nm；Beam merging apparatus, the laser beam light path outgoing altogether for light beam and primary laser source by light source is regulated and controled.Speckle contrast is greatly lowered by adding regulation and control light source in laser illuminator system in technical scheme of the present invention, so as to effectively suppress the speckle phenomena in laser display picture.
Description
Technical field
The present invention relates to technical field of laser illumination.More particularly, to a kind of laser illuminator system, laser projection system
And laser display system.
Background technology
Using laser as light source, it can be applied to include the fields such as laser projection is shown and liquid crystal laser backlight is shown, have
Colour gamut is wide, long lifespan and the advantages of high brightness.But due to the high coherence of laser, there is lacking for laser coherence speckle in display picture
Point.Laser coherence speckle is due to that laser is coherent to form, in retina in the relevant wavelet interaction that rough surface is scattered or is reflected
On a kind of interaction noise for showing.Speckle shows as plaque-like noise on screen, can reduce image frame quality, easily make
It is one of technical problem for solving the need for field of laser illumination (particularly Display Technique) into dim eyesight and asthenopia.
Fig. 1 is that a kind of laser illuminator system of prior art is used for the structural representation of optical projection system.As shown in figure 1, should
Laser illuminator system includes red, green, blue tricolor laser light source, and common light path is output to after the laser of each LASER Light Source output merges
In projection arrangement.
The method of prior art reduction laser display speckle mainly has：1st, by optical instrument, the phase of LASER Light Source is increased
Position diversity, polarization diversity, angular diversity etc. reduce laser coherence speckle；2nd, using the side of optimal imaging lens opening
Method reduces laser coherence speckle；3rd, laser coherence speckle is reduced using the method for vibration screen；4th, using increase LASER Light Source
The method reduction laser coherence speckle of line width.
In above-mentioned four kinds of methods, the 1st kind of method and the 2nd kind of method simplicity are preferably gone, but due to the limited original of statistical independence
Cause, causes the effect for reducing speckle not notable, it is impossible to meet practical application request；3rd kind of method can effectively eliminate laser phase
Dry speckle, but be due to that screen will carry out mechanical oscillation, the scope of application is extremely limited；4th kind of method is formed from speckle
Physical Mechanism in terms of solve speckle, be most rationally, most efficient method.But existing broad band red, green, blue three primary colours swash
Light device is difficult technically to obtain, even if broad band tricolor laser can be produced, there is also efficiency is low, cost is high, it is difficult to
Practical the problem of.
Accordingly, it is desirable to provide a kind of can effectively suppress the laser light-source device including this LASER Light Source of laser speckle
The laser projection system and laser display system of device.
The content of the invention
It is an object of the invention to provide a kind of laser illuminator system, laser projection system and laser display system, can have
Effect suppresses the speckle phenomena in laser display picture, improves image quality, improves brightness, the uniformity and the color saturation of picture
Degree, lift picture views and admires comfort level.
To reach above-mentioned purpose, the present invention uses following technical proposals：
A kind of laser illuminator system, including
Primary laser source；
At least one regulation and control light source, the ripple of each regulation and control light source output light beam and the primary laser source outgoing laser beam
Long difference is more than or equal to 5nm and less than or equal to 30nm；With
Beam merging apparatus, for the laser beam of the light beam of the regulation and control light source and primary laser source to be total into light path outgoing.
Preferably, the power of each regulation and control light source output light beam is 1/10th of the laser beam power of primary laser source
To 1/2nd.
Preferably, the regulation and control light source is LASER Light Source, incoherent light source, LED/light source or fluorescence spectrum light source.
Preferably,
The primary laser source include at least one red laser light source, at least one green laser light source and at least one
Blue laser light source.
Preferably, at least one described regulation and control light source includes at least one feux rouges regulation and control light source, the regulation and control of at least one green glow
Light source and/or at least one blue light regulation and control light source,
At least one described feux rouges regulates and controls the wavelength of light source output light beam and corresponding red laser light source output laser beam
Difference is more than or equal to 5nm and less than or equal to 30nm,
At least one described green glow regulates and controls the wavelength of light source output light beam and corresponding green laser light source output laser beam
Difference is more than or equal to 5nm and less than or equal to 30nm,
At least one described blue light regulates and controls the wavelength of light source output light beam and corresponding blue laser light source output laser beam
Difference is more than or equal to 5nm and less than or equal to 30nm,
The beam merging apparatus is by the laser beam from primary laser source and the light beam from each regulation and control light source is total to light path outgoing.
Preferably, the power of each regulation and control light source output light beam is the laser beam power of its corresponding primary laser source
1/1st to two/10th.
Preferably, at least one described red laser light source, at least one green laser light source and at least one blue light swash
Radiant, is respectively arranged with least one corresponding regulation and control light source.
Preferably, the primary laser source further comprises gold-tinted LASER Light Source.
Dominant wavelength lighting unit and at least one tune are used as according to the laser illuminator system of the present invention, including primary laser source
Light source is controlled as secondary wavelength light source, secondary wavelength tuning control light beam of light source is identical with the tone of dominant wavelength LASER Light Source laser but wavelength not
Together, the coherence of laser light-source device outgoing beam can be eliminated, suppresses optical projection system or shows the speckle phenomena of system.Regulation and control
Light source is identical with the tone of primary laser source, and optical projection system is not interfered with not only or the final display effect of system is shown, may be used also
To improve picture brightness and color saturation.
Beneficial effects of the present invention are as follows：
Speckle contrast is greatly lowered by adding regulation and control light source in laser illuminator system in technical scheme of the present invention
Degree, can effectively suppress the speckle phenomena in laser display picture so that laser projection system and the speckle of laser display system effect
It should weaken, significantly improve image quality, improve brightness, the uniformity and the color saturation of picture, lift viewing and admiring for picture
Comfort level.The manufacturing process of technical scheme of the present invention is simple, with low cost, suitably largely puts into production.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows that a kind of laser illuminator system is used for the schematic diagram of optical projection system in the prior art.
Fig. 2 shows the schematic diagram for the laser illuminator system that embodiment 1 is provided.
Fig. 3 shows the schematic diagram for the laser illuminator system that embodiment 2 is provided.
Fig. 4 shows the schematic diagram for the laser illuminator system that embodiment 3 is provided.
Fig. 5 shows the schematic diagram for the laser projection system that embodiment 4 is provided.
Fig. 6 shows the schematic diagram for the laser display system that embodiment 5 is provided.
Embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
The invention provides a kind of laser illuminator system, laser projection system and laser display system,
Key lighting light source and at least one regulation and control light are used as according to the laser illuminator system of the present invention, including LASER Light Source
The wavelength difference of source, regulation and control light source and LASER Light Source is more than or equal to 5nm and less than or equal to 30nm, regulates and controls light source and LASER Light Source light altogether
Road outgoing or the light path outgoing altogether after optical system.
The key lighting LASER Light Source can be all-solid state laser light source, semiconductor laser light resource or other three primary colours visible rays
Laser etc..
The key lighting LASER Light Source can be at least one monochromatic laser light source, or may include at least one set of tricolor laser light
Source is so that as the light source for projecting or showing system, the key lighting LASER Light Source may also include the gold-tinted LASER Light Source for light filling.
When the key lighting LASER Light Source is monochromatic laser light source, the quantitative relation of LASER Light Source and regulation and control light source can be one
One correspondence, or the corresponding multiple regulation and control light sources of one regulation and control light source of multiple LASER Light Sources correspondence, a LASER Light Source etc..Always
It, LASER Light Source in laser illuminator system with the basis of regulation and control light source at least one, LASER Light Source and regulation and control light source
Quantity than that can be any appropriate ratio.
When the key lighting LASER Light Source includes at least one set of tricolor laser light source, tricolor laser light source and regulation and control light
The quantitative relation in source can at least correspond to a regulation and control light source, or tricolor laser light respectively for red, green, blue LASER Light Source
Source only corresponds to that at least one feux rouges regulation and control light source, tricolor laser light source only correspond at least one feux rouges regulation and control light source and one green
Light regulation and control light source etc., that is, light source can be regulated and controled for red, green, blue by regulating and controlling light source, or a shade therein or two color light are adjusted
Control light source, in a word, LASER Light Source in laser illuminator system with the basis of regulation and control light source at least one, LASER Light Source with
The quantity ratio for regulating and controlling light source can be arbitrary proportion.
The power of key lighting light source is the primary illumination part of lighting device, and the power of regulation and control light source is secondary Lighting Division
Point.Regulate and control light source power can not be too high, if regulation and control light source power it is too high, for example more than laser light source power two/
After one, with the gradually enhancing of the power of regulation and control light source, the speckle contrast of laser display picture declines can be gradually unobvious, suppression
Speckle effect processed is not good.The power for regulating and controlling light source can not be too low, if the power of regulation and control light source is too low, such as less than LASER Light Source
After about 1/10th of power, the speckle contrast of laser display picture declines can be gradually unobvious, suppresses speckle effect not good.
So in the present invention, the power of regulation and control light source is 1st/1st to two/10th of the power of main laser illuminator light source.
It is LASER Light Source or non-linear light source to regulate and control light source, and non-linear light source is, for example, LED/light source or fluorescence spectrum light source.
According to the present invention, above-mentioned laser illuminator system can be used as the light source of laser projection system, and can be used as laser display
The light source of system.
With specific embodiment, the present invention will be further described below.
Embodiment 1
As shown in Fig. 2 the laser illuminator system that the present embodiment is provided, including monochromatic laser light source and monochromatic regulation and control light source,
The wavelength difference for regulating and controlling light source and LASER Light Source is more than or equal to 5nm and less than or equal to 30nm.Regulate and control the output of light source and LASER Light Source
Light beam light path outgoing altogether after optical system.In the present embodiment, LASER Light Source can be red-light source, blue light source or green
Radiant.For example, red-light source can be 635nm semiconductor laser, such as blue light source can be 445nm semiconductor
Laser, such as green-light source can be 532nm all solid state lasers.Red-light source, blue light source or green-light source can be adopted
Corresponding regulation and control light source is for example respectively that 650nm, 515nm, 460~470nm semiconductor laser or wavelength are with swashing
The LED that radiant corresponding wavelength difference is 5~30nm.In the embodiment, the power ratio of key lighting LASER Light Source and regulation and control light source is
5:1。
Embodiment 2
As shown in figure 3, the laser illuminator system that the present embodiment is provided, including one group of tricolor laser light source and respectively with three
The corresponding regulation and control light source of primary color laser light source, tricolor laser light source is red, green, blue tricolor laser light source, corresponding three color
Regulation and control light source is respectively red, green, blue regulation and control light source.The laser beam of the output beam and LASER Light Source that regulate and control light source passes through optics
Light path outgoing altogether after system.In the present embodiment, red, the blue laser light source in three primary light source be respectively wavelength for 635nm,
445nm semiconductor laser, green-light source is 532nm all solid state laser.Red, green, blue three color scheme control light source is respectively
650nm, 515nm, 460~470nm semiconductor laser or wavelength be with tricolor laser light source corresponding wavelength difference be 5~
30nm LED, the wherein power ratio of LASER Light Source and corresponding regulation and control light source are 6:1.
Embodiment 3
As shown in figure 4, the laser illuminator system that the present embodiment is provided includes one group of tricolor laser light source and a regulation and control
Light source, tricolor laser light source is red, green, blue tricolor laser light source, and a regulation and control light source is that green glow regulates and controls light source.Green glow is adjusted
Control light source and close light path outgoing altogether after beam with tricolor laser light source.In the present embodiment, in tricolor laser light source it is red, green,
Blue tricolor laser light source is respectively the semiconductor laser that wavelength is 635nm, 445nm, and green-light source is all solid state for 532nm's
Laser.Green glow regulation and control light source is the green laser ripple in 515nm semiconductor laser or wavelength and tricolor laser light source
5~30nm of long difference LED, the power ratio of wherein LASER Light Source and regulation and control light source is 3:1.
Embodiment 4
As shown in figure 5, the laser projection system by the use of laser illuminator system as light source that the present embodiment is provided, the laser
Optical projection system includes laser illuminator system, projection arrangement and screen.
Wherein laser illuminator system includes key lighting LASER Light Source and regulation and control light source, wherein, key lighting LASER Light Source includes
Red, green, blue tricolor laser light source, regulation and control light source includes regulating and controlling with the one-to-one red, green, blue of three primary color laser light sources
Light source, regulation and control light source closes light path outgoing altogether after beam with tricolor laser light source.In the present embodiment, in key lighting LASER Light Source
Feux rouges, blue light source are respectively 635nm and 445nm semiconductor laser, and green-light source is 532nm all solid state laser.
It is corresponding, red, green, blue regulation and control light source be 650nm, 515nm, 460~470nm semiconductor laser or wavelength be with
The LED that tricolor laser light source corresponding wavelength difference is 5~30nm, the power ratio of wherein LASER Light Source and regulation and control light source is 4:1.
In the present embodiment, projection arrangement is, for example, the optical projection system of ultrashort focal length, and projection is than being 0.22:1.
Screen is 16 in the present embodiment:The projection screen of 9 100 inches of environment resistant light, screen gain is 1.1.
Embodiment 5
As shown in fig. 6, the laser display system by the use of laser illuminator system as light source that the present embodiment is provided, the laser
Display system includes laser illuminator system, projection arrangement and screen.
Wherein laser illuminator system includes LASER Light Source and regulation and control light source, wherein, LASER Light Source includes the base of red, green, blue three
Color LASER Light Source, regulation and control light source includes regulating and controlling light source with the one-to-one red, green, blue of three primary color laser light sources, regulates and controls light
Source and light beam light path outgoing altogether after optical system of tricolor laser light source output.In the present embodiment, in LASER Light Source
Feux rouges, blue laser light source be respectively 635nm and 445nm semiconductor laser, green laser light source is complete solid for 532nm's
State laser, red, green, blue regulation and control light source be respectively 610~620nm red-light LED light source, 550nm green light LED light source,
460~470nm blue light LED light source and/or other low coherence light sources.
In the present embodiment, projection arrangement is the optical projection system of ultrashort focal length, and projection is than being 0.22:1.
In the present embodiment, screen is 16:The projection screen of 9 100 inches of environment resistant light, screen gain is 1.1.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is extended out still in protection scope of the present invention.
Claims (9)
1. a kind of laser illuminator system, it is characterised in that including
Primary laser source；
At least one regulation and control light source, the wavelength difference of each regulation and control light source output light beam and the primary laser source outgoing laser beam
More than or equal to 5nm and less than or equal to 30nm, the power of each regulation and control light source output light beam is the laser beam work(of primary laser source
/ to two/10th of rate；With
Beam merging apparatus, for the laser beam of the light beam of the regulation and control light source and primary laser source to be total into light path outgoing.
2. laser illuminator system according to claim 1, it is characterised in that the regulation and control light source is LASER Light Source, non-phase
Dry light source, LED/light source or fluorescence spectrum light source.
3. laser illuminator system according to claim 1, it is characterised in that
The primary laser source includes at least one red laser light source, at least one green laser light source and at least one blue light
LASER Light Source.
4. laser illuminator system according to claim 3, it is characterised in that at least one described regulation and control light source is included at least
One feux rouges regulation and control light source, at least one green glow regulate and control light source and/or at least one blue light regulation and control light source,
At least one feux rouges regulation and control light source output light beam and the wavelength difference of corresponding red laser light source output laser beam are big
In equal to 5nm and less than or equal to 30nm,
At least one green glow regulation and control light source output light beam and the wavelength difference of corresponding green laser light source output laser beam are big
In equal to 5nm and less than or equal to 30nm,
At least one blue light regulation and control light source output light beam and the wavelength difference of corresponding blue laser light source output laser beam are big
In equal to 5nm and less than or equal to 30nm,
The beam merging apparatus is by the laser beam from primary laser source and the light beam from each regulation and control light source is total to light path outgoing.
5. laser illuminator system as claimed in claim 4, it is characterised in that the power of each regulation and control light source output light beam is
/ to two/10th of the laser beam power of its corresponding primary laser source.
6. laser illuminator system according to claim 4, it is characterised in that at least one described red laser light source, extremely
A few green laser light source and at least one blue laser light source, are respectively arranged with least one corresponding regulation and control light source.
7. laser illuminator system according to claim 3, it is characterised in that the primary laser source further comprises gold-tinted
LASER Light Source.
8. a kind of laser projection system, it is characterised in that the laser projection system includes laser lighting as claimed in claim 1
Device.
9. a kind of laser display system, it is characterised in that the laser display system includes laser lighting as claimed in claim 1
Device is used as backlight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510646014.5A CN105116679B (en) | 2015-10-08 | 2015-10-08 | Laser illuminator system, laser projection system and laser display system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510646014.5A CN105116679B (en) | 2015-10-08 | 2015-10-08 | Laser illuminator system, laser projection system and laser display system |
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| CN105116679A CN105116679A (en) | 2015-12-02 |
| CN105116679B true CN105116679B (en) | 2017-08-25 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007550B (en) | 2018-01-04 | 2021-11-05 | 深圳光峰科技股份有限公司 | Light source system and projection equipment |
| CN108681096B (en) * | 2018-05-25 | 2023-09-29 | 中国科学院理化技术研究所 | Speckle eliminating device and method and laser display projection system |
| CN113946092A (en) * | 2021-08-02 | 2022-01-18 | 合肥全色光显科技有限公司 | Projection system |
| CN113647914A (en) * | 2021-08-23 | 2021-11-16 | 许江珂 | Medical remote laser shooting display system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736382A (en) * | 2011-04-12 | 2012-10-17 | 骆庆疆 | Projection optical engine with laser-LED hybrid light source |
| CN103034035A (en) * | 2011-09-30 | 2013-04-10 | 中强光电股份有限公司 | Illuminating system and projecting apparatus |
| US9557013B2 (en) * | 2012-08-01 | 2017-01-31 | Nec Display Solutions, Ltd. | Illumination optical system and projection display apparatus |
| CN104020632B (en) * | 2013-02-28 | 2016-08-24 | 深圳市绎立锐光科技开发有限公司 | Light-emitting device and relevant projecting system |
| CN205067954U (en) * | 2015-10-08 | 2016-03-02 | 杭州虹视科技有限公司 | Laser lighting device , laser projection system and laser display system |
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Address after: Room 2, building 600, No. 21, No. 310018, Baiyang street, Hangzhou economic and Technological Development Zone, Zhejiang, China Applicant after: HANGZHOU ZHONGKE AURORA TECHNOLOGY Co.,Ltd. Address before: 310008 Zhejiang City, Hangzhou Province Economic and Technological Development Zone, No. 600 Poplar Street, No. 21, room 2, building 107, room Applicant before: Hangzhou Hongshi Technology Co.,Ltd. |
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Denomination of invention: Laser lighting devices, laser projection systems, and laser display systems Effective date of registration: 20230921 Granted publication date: 20170825 Pledgee: China Construction Bank Corporation Hangzhou Qiantang sub branch Pledgor: HANGZHOU ZHONGKE AURORA TECHNOLOGY Co.,Ltd. Registration number: Y2023330002078 |
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