CN102425757B - Light source capable of providing color change light and method thereof - Google Patents
Light source capable of providing color change light and method thereof Download PDFInfo
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- CN102425757B CN102425757B CN 201110421026 CN201110421026A CN102425757B CN 102425757 B CN102425757 B CN 102425757B CN 201110421026 CN201110421026 CN 201110421026 CN 201110421026 A CN201110421026 A CN 201110421026A CN 102425757 B CN102425757 B CN 102425757B
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Abstract
The invention provides a light source capable of providing color change light and a method thereof. The light source comprises a luminous source (2); a moving surface comprises a moving device (1) which is provided with different regions of different characteristics; these regions sequentially face a light beam (41) from the luminous source along with movement to generate light of different wavelengths in sequence for constituting a second light beam (42); in particular, a second luminous source (3) is arranged in the light source for guiding a light beam (43) from the second luminous source and the second light beam (42) to be assembled into an output light beam of the light source; and the luminous source (2) and the second luminous source (3) are controlled, so that the second luminous source (3) is switched on when the luminous source (2) is switched off when boundary lines among the regions fall into the irradiating range of the light beam (41) from the luminous source. By adopting the light source, the problem of spoke light spots can be solved.
Description
Technical field
The present invention is that application number is 200810067549.7, the applying date is on May 30th, 2008, denomination of invention is divided an application for the patented claim of " light source and the method thereof of variable color light can be provided ".The present invention relates to luminous/lighting device and system thereof, relate in particular to it decomposes or make up the illuminating effect that changes by light beam light-source structure and method.
Background technology
In field of image projection, for example (but being not limited to) relates to rear-projection TV (RPTV) or front projector, and the light source applications technology is more and more ripe.Prior art is constantly carried out performance, structure or cost optimization to described light source when providing the changeable colour light source for this field.
In view of solid state light emitter, semiconductor light-emitting-diode (Light Emitting Diode for example, LED) have the advantages such as long service life, low in energy consumption, wavelength is adjustable, along with continuing to bring out of various novel high-power high-brightness LEDs, led light source is more and more used in above-mentioned field.
The light source package that tradition provides the light source of continuously variable color to adopt for field of image projection is: white light source (for example UHP light source) is combined with colour wheel, utilize the motion of colour wheel, change the output color of white light with transmission or reflection mode.
Consider control and the cost of light source, the light source of fluorescence conversion plan also occurs adopting in recent years.Such light source comprises an excitation source (such as but not limited to the LED/LED array), and multi-wavelength's transformational substance (for example adopting different colours fluorescent powder) under the excitation of exciting light, sends the photon of different colours respectively.Adjustable continuously for light output color is realized, our company proposed Chinese patent application with regard to the improvement project of such light source.In this patented claim, also in light source, use telecontrol equipment (for example rotating disk) to come the subregion to carry described multiple fluorescent powder, by the motion of described rotating disk, select different fluorescent powder to produce stimulated luminescence, thereby obtain monochromatic light or the mixed light output of continuously variable color.
When the light source of above-mentioned technology is used for field of image projection, " spoke hot spot (spoke light) " phenomenon that rotating disk or colour wheel bring will badly influence image displaying quality.So-called " spoke hot spot " phenomenon refer between described multiple fluorescent powder or near the output of the light the separatrix between color lump color mix phenomenon, the scattering properties that is mainly had by described stimulated luminescence or the non-singularity of described white light source incident angle are caused.Because of described separatrix generally on the radial line of rotating disk or colour wheel, therefore claim that this phenomenon is spoke hot spot phenomenon.
Correct for picture color is shown, optical projection system is set up the light source of abandoning using this transition section usually, thereby has lost the brightness of image.For this reason, American TI (Texas Instrument) company is in its US Patent No. 6,324, and the method that discloses a kind of spoke hot spot recycling among 006B1 and the U.S. Patent application US 2007/0035703A1 strengthens brightness of image.The method proposes to come light modulated output data in (between namely corresponding to described color lump near the separatrix during) during the spoke with predetermined complex light output intensity data, thereby avoids or near alleviate the separatrix light output color mixes.
Above-mentioned the deficiencies in the prior art part is: described spoke hot spot recycling method need to arrange or estimates employed predetermined complex light output intensity data, and the real-time of processing is relatively poor; And the accuracy of data setting or estimation will affect the effect that reduces that color mixes.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art part, and proposes a kind of light source and method thereof, can provide in real time variable color light with simple processing mode, avoids simultaneously exporting the spoke hot spot.
For solving the problems of the technologies described above, basic conception of the present invention is: comprise two light emitting sources in a light supply apparatus, first is used for and telecontrol equipment, for example rotating disk combines, produce the light of at least two kinds of colors with timesharing, second is used for providing at least one road reference light during the spoke of these two kinds of light.Like this, during described spoke, described light supply apparatus can be exported reference light; During non-spoke, described light supply apparatus can timesharing the mixed light of two kinds of simple coloured light of output or these two kinds of simple coloured light and described reference light; Further be by the lighting mode of described two light emitting sources being controlled and being cooperated, can obtain output light or the output mixed light of different colours, and avoid producing the spoke hot spot.
As the technical scheme that realizes the present invention's design be, a kind of method that variable color light is provided be provided, be used for light source, comprise step:
Light source is set, and guiding comes the light beam (41) of self-emitting light source (2) to shoot to a telecontrol equipment (1);
Divide the moving surface of described telecontrol equipment, be arranged to have some zones of different qualities; The motion of this moving surface consists of the second light beam (42) so that the light beam that comes self-emitting light source to described is sequentially met in these zones thereby successively produce different wave length;
It is characterized in that, also comprise step:
The second light emitting source (3) is set in described light source, and guiding pools the output beam of described light source from the light beam (43) of this second light emitting source and described the second light beam (42);
Control described light emitting source (2) and described the second light emitting source (3), make each described interregional boundary line fall into the described light beam (41) that comes self-emitting light source but in the range of exposures time, turn-off described light emitting source (2) and open simultaneously described the second light emitting source (3).
As the technical scheme that realizes the present invention's design still, provide a kind of light source that variable color light is provided, comprise light emitting source (2); The moving surface that comprises the some zones with different qualities on the telecontrol equipment (1), the motion of this moving surface consists of the second light beam (42) so that the light beam (41) that comes self-emitting light source to described is sequentially met in these zones thereby successively produce different wave length; It is characterized in that:
Also comprise the second light emitting source (3) and light splitting optical filter (5), described the second light beam (42) reaches the not ipsilateral that shoots to respectively described light splitting optical filter (5) from the light beam (43) of this second light emitting source, pools respectively the output beam of described light source by reflection or transmission;
Also comprise the light emitting source control module, control described light emitting source (2) and described the second light emitting source (3), make each described interregional boundary line fall into the described light beam (41) that comes self-emitting light source but in the range of exposures time, turn-off described light emitting source (2) and open simultaneously described the second light emitting source (3).
Adopt above-mentioned each technical scheme, when realizing that variable color light provides, eliminate the spoke hot spot, and it is ingenious to have a structure, control is processed simple, the advantage that is easy to realize.
Description of drawings
Fig. 1 is one of the light path embodiment of apparatus of the present invention schematic diagram;
Fig. 2 is two schematic diagram of the light path embodiment of apparatus of the present invention;
Fig. 3 is rolling disc embodiment schematic illustration of the present invention;
Fig. 4 is two schematic diagram of telecontrol equipment enforcement of the present invention;
Fig. 5 is three schematic diagram of telecontrol equipment enforcement of the present invention;
Wherein, each Reference numeral is: 1,1 '---moving surface/card, and 2---light emitting source, 3---the second light emitting source, 41---coming the light beam of self-emitting light source, 42---the second light beam, 43---from the light beam of the second light emitting source, 5---the light splitting optical filter.
Embodiment
Below, the most preferred embodiment shown in is by reference to the accompanying drawings further set forth the present invention.
Existing light source provides the method for variable color light to comprise the following steps:
Light source is set, and guiding comes the light beam of self-emitting light source to shoot to a telecontrol equipment: this light beam can be the direct projection telecontrol equipment, or shoots to telecontrol equipment by reflection or the fiber guides of a reflection unit (for example catoptron or light splitting optical filter);
Divide the moving surface of described telecontrol equipment, be arranged to have some zones of different qualities; The motion of this moving surface consists of the second light beam so that the light beam that comes self-emitting light source to described is sequentially met in these zones thereby successively produce different wave length: colour wheel for example transmits the different light of wavelength by zones of different;
The inventive method also comprises step on this basis:
The second light emitting source is set in described light source, and guiding pools the output beam of described light source from the light beam of this second light emitting source and described the second light beam: the general selection of this second light emitting source has the emission wavelength different with described light emitting source; The light beam of this second light emitting source and described the second light beam can also adopt other guiding of more simplifying and ethod of remittance such as but not limited to pooling a branch of light beam by fiber guides and with color-combination prism among the present invention;
Control described light emitting source (2) and described the second light emitting source (3), make each described interregional boundary line fall into the described light beam (41) that comes self-emitting light source but in the range of exposures time, turn-off described light emitting source (2) and open simultaneously described the second light emitting source (3).
In order to further specify the inventive method, first the present invention is realized that the optimal light source apparatus embodiment of the method does a simple declaration: as shown in Figure 1, light source of the present invention comprises light emitting source 2; The rolling disc that comprises the some zones (such as but not limited to regional a, b, c, d) with different qualities on the card 1, the motion of this rolling disc consists of the second light beam 42 so that the light beam 41 that comes self-emitting light source 2 to described is sequentially met in these zones thereby successively produce different wave length.Light source of the present invention also comprises the second light emitting source 3 and light splitting optical filter 5, described the second light beam 42 reaches the not ipsilateral that shoots to respectively described light splitting optical filter 5 from the light beam 41 of this second light emitting source, pools respectively the output beam of described light source by reflection or transmission.In addition, what do not indicated among this figure is that light source of the present invention also comprises the light emitting source control module, controls respectively lighting the period of described light emitting source 2 and described the second light emitting source 3, makes the output beam of described light source have predetermined color or predetermined change color.
According to the structural design of light source, can use rotary drum as shown in Figure 4, or displacement disc is as shown in Figure 5 replaced above-mentioned rolling disc in the present invention.For sake of convenience, among the present invention system is referred to as the moving surface of telecontrol equipment or telecontrol equipment.
In Fig. 1, the described light beam 41 that comes self-emitting light source 2 is guided to telecontrol equipment 1 by the reflection of light splitting optical filter 5; This telecontrol equipment guides described the second light beam 42 to described light splitting optical filter 5 in the mode of reflection (such as by catoptron etc.).And in the another device embodiment of the present invention of Fig. 2, can be designed to the light beam 41 direct projection telecontrol equipments 1 ' that come self-emitting light source 2 with described, and provide described the second light beam 42 by transmission mode.In the various embodiments described above, can design light path according to the different qualities of the transmissivity of selected light splitting optical filter 5 (different and different with lambda1-wavelength): for example among Fig. 1, the transmissivity of 5 pairs of described the second light beams 42 of this light splitting optical filter is this second light beam 42 of transmissive close to 1, simultaneously but to described light beam 43 from the second light emitting source and come light beam 41 transmissivities of self-emitting light source to reflect this light beam 43 and light beam 41 close to 0; Make so described light beam 43 from the second light emitting source and described the second light beam 42 shoot to respectively the not ipsilateral of this light splitting optical filter 5, thereby pool respectively the output beam of described light source by transmission or reflection.And in Fig. 2, then choice for use transmissive described from the second light emitting source light beam 43 and reflect the light splitting optical filter 5 of described the second light beam 42.
Each regional a～d of telecontrol equipment 1 among Fig. 1 of the present invention or Fig. 2 embodiment has different light transmission features, be white light source for (but being not limited to) described light emitting source, thereby by selecting to produce the light of predetermined wavelength in reflection or the transmission cause white light, form described the second light beam 42.Traditional colour wheel is the exemplary of this telecontrol equipment 1.
Each regional a～d of telecontrol equipment 1 among Fig. 1 of the present invention or Fig. 2 embodiment has different light wavelength conversion characteristics; Each described zone is by carrying or do not carry optical wavelength conversion material, or realizes this different qualities by carrying different optical wavelength conversion materials.Each described optical wavelength conversion material describedly comes the light beam 41 of self-emitting light source to produce the light different from this light emitting source light beam wavelength by absorbing; When having when not carrying optical wavelength conversion material regional, also have at least a zone can produce the different light of wavelength.These light form described the second light beam 42 with transmission or the mode that is reflected by the corresponding region.Described optical wavelength conversion material comprises fluorescent powder, dyestuff or quantum dot.
The inventive method can avoid producing the spoke hot spot admirably to the control of lighting of described light emitting source and described the second light emitting source.Take Fig. 1 as example, suppose the areal distribution of its card as shown in Figure 3, the respectively representative that is denoted as R, G, B is coated with the phosphor area of being excited to produce red, green, blue; Described the second light emitting source 3 blue light-emittings.When if control makes each described interregional boundary line fall in described light beam 41 ranges of exposures of coming self-emitting light source, turn-off described light emitting source 2 and open simultaneously described the second light emitting source 3, then when the border that the card of telecontrol equipment forwards respectively green with blue border, blue with red border, red with blue border or blueness and green to enters in light beam 41 ranges of exposures, will only comprise the blue light from described the second light emitting source 3 in the output beam of light supply apparatus.If also control described light emitting source 2, but when making each described zone have single area only to fall in described light beam 41 ranges of exposures of coming self-emitting light source, open just now this light emitting source 2 and turn-off described the second light emitting source 3, but then only have green, blue, red or territory, blue area in light beam 41 ranges of exposures the time when the card of telecontrol equipment forwards to respectively, will only comprise respectively green, blue, the red or blue light that excites from fluorescent powder in the output beam of light supply apparatus.
For this reason, by controlling described the second light emitting source 2 and described light emitting source 3, zone among this Fig. 3 can also be changed and be arranged to: make described blue region not comprise any fluorescent powder, forward to respectively when making this " indigo plant " zone enter in the described range of exposures when the card of telecontrol equipment like this, control changes opens described the second light emitting source 2 and described light emitting source 3 turn-offs, and the output beam of the light supply apparatus consistent with above-described embodiment can be provided equally.The second light emitting source 2 and light emitting source 3 adopted with the present embodiment under the identical or approaching control mode, zone among this Fig. 3 can also be changed again and be arranged to: only comprise illustrating two zones that dotted line is the boundary, carry respectively green, red fluorescent powder, also can make light supply apparatus obtain same output beam.
In addition, can also be controlled at when opening described light emitting source 2 and open described the second light emitting source 3, immediately export with the mixed light that obtains two kinds of color of light.
Embodiment can take Fig. 1 as example, suppose that described light emitting source 2 adopts blue-ray LED or UVLED, has at least two zones to carry respectively different optical wavelength conversion materials and be excited to produce ruddiness and green glow on the telecontrol equipment 1 more specifically in field of image projection; Described the second light emitting source 3 adopts blue-ray LEDs, and then light supply apparatus utilizes the inventive method that three primary colours light without the spoke hot spot can be provided.
Perhaps, for improving the efficient of fluorescence conversion, described light emitting source 2 can adopt UVLED, has at least two zones to carry respectively different optical wavelength conversion materials and be excited to produce blue light and green glow on the telecontrol equipment 1; Described the second light emitting source adopts red-light LED, can solve the low problem of red light fluorescent powder conversion efficiency under the prior art condition.This light supply apparatus can also be equal to and replaces with: described light emitting source 2 adopts blue-ray LEDs, and Two Areas is arranged in the telecontrol equipment, and one scribbles green emitting phosphor, and another is not coated with any fluorescent powder to allow blue light directly see through; Described the second light emitting source adopts red-light LED.If a zone that includes gold-tinted fluorescent powder further is provided in this light supply apparatus, light supply apparatus even can provide reddish yellow bluish-green four primary colours then.
For ease of accurately controlling the color of output beam, described light source can also comprise a location device, produce a positioning signal of position of relying this telecontrol equipment of feedback according to the motion of described telecontrol equipment, offer described light emitting source control module to realize the accurate location to each described zone.This locating device can but to be not limited to be a projection at rolling disc edge, photodetector or a dynamo-electric inspection of aiming at the precalculated position is set outside described telecontrol equipment touches device, when the motion of this rolling disc drives described projection and arrives this precalculated position, produce a trigger pulse, be used as described positioning signal, the beginning of prompting specific region.This locating device can also but be not limited to as shown in Figure 4, be a reflection bar or the absorbing strip that arranges on the rotary drum, be used for reflecting or absorbing the light that adopts in a photoemission and the receiving trap, so that when this reflection bar or absorbing strip move with rotary drum, the light path of connecting or block receiving trap is produced the beginning of corresponding pulse signal prompting specific region.Even when producing motion under the effect of described telecontrol equipment at servomechanism installation, described servomechanism installation might be exported the relevant signal of an angle or position, and this signal can be used as the positioning signal of described locating device.
According to described positioning signal, light source of the present invention is only lighted in a predetermined time section (for example just corresponding being scheduled to described zone) by the described light emitting source 2 of control or described the second light emitting source 3, then can obtain monochromatic light or the mixed light output at an intermittence.Take as the basis, can design the comparatively complicated control model of lighting according to predetermined light output color or change color.Because of these all in the coverage of design of the present invention and method, no longer exhaustive.
The present invention can eliminate the spoke hot spot fully through experimental verification, and can not lose the brightness of light source, provides convenience more for the multiple variable color light of generation.
Claims (18)
1. the light source that variable color light can be provided is characterized in that, comprises light emitting source (2) and telecontrol equipment (1); The moving surface that comprises at least two zones with different qualities on the telecontrol equipment (1), the motion of this moving surface is so that the light beam (41) that comes self-emitting light source to described is sequentially met in this at least two zones; Each described regions carry or do not carry optical wavelength conversion material, or carry different optical wavelength conversion materials, thus have different light wavelength conversion characteristics; Each described optical wavelength conversion material describedly comes the light beam (41) of self-emitting light source to produce the light different from this light emitting source light beam wavelength by absorbing, and provides the second light beam (42) in the mode of reflection or transmission;
Described light source also comprises the second light emitting source (3) and light splitting optical filter (5), described the second light beam (42) reaches the not ipsilateral that shoots to respectively described light splitting optical filter (5) from the light beam of this second light emitting source, pools a branch of light beam by reflection or transmission respectively;
Also comprise the light emitting source control module, when control makes the boundary line between at least one adjacent area of telecontrol equipment fall in described light beam (41) range of exposures of coming self-emitting light source, turn-off described light emitting source (2) and open simultaneously described the second light emitting source (3).
2. the light source that variable color light is provided according to claim 1, it is characterized in that: described light emitting source control module is also controlled described light emitting source (2), make telecontrol equipment have that non-spoke district falls into the described light beam (41) that comes self-emitting light source only but in the range of exposures time, just open this light emitting source (2) and turn-off described the second light emitting source (3).
3. the light source that variable color light is provided according to claim 2, it is characterized in that: described light emitting source control module also is controlled at and opens described the second light emitting source (3) when opening described light emitting source (2), to obtain the mixed light output of two kinds of color of light.
4. the light source that variable color light is provided according to claim 3, it is characterized in that: described light emitting source control module is controlled at and opens described the second light emitting source (3) when opening described light emitting source (2) during the non-spoke, to obtain the mixed light output of two kinds of color of light.
5. each described light source that variable color light is provided in 4 according to claim 1, it is characterized in that: described light emitting source (2) sends blue light, and the second light emitting source sends ruddiness; In described at least two zones, a zone has the green light material for transformation of wave length, another zone without optical wavelength conversion material to allow blue light directly see through, so that described light source provides red bluish-green three primary colours light.
6. each described light source that variable color light is provided in 4 according to claim 1, it is characterized in that: described light emitting source (2) sends UV light, and the second light emitting source sends ruddiness; Telecontrol equipment (1) has at least two zones to carry respectively different optical wavelength conversion materials and be excited to produce blue light and green glow.
7. each described light source that variable color light is provided in 4 according to claim 1, it is characterized in that: described light emitting source (2) sends blue light or UV light, the second light emitting source (3) sends blue light, telecontrol equipment (1) has at least two zones to carry respectively different optical wavelength conversion materials and be excited to produce ruddiness and green glow, also has the blue area territory that do not comprise optical wavelength conversion material adjacent with these two zones between these two zones at least; Described light emitting source control module also enter in this territory, blue area self-emitting light source light beam (41) but range of exposures the time, control is opened the second light emitting source and described light emitting source turn-offs.
8. each described light source that variable color light is provided in 4 according to claim 1 is characterized in that: in described two zones, a zone with sodium yellow material for transformation of wave length is arranged at least.
9. each described light source that variable color light is provided in 4 according to claim 1, it is characterized in that: described light source also comprises locating device, produce a positioning signal of position of relying this telecontrol equipment of feedback according to the motion of described telecontrol equipment, offer described light emitting source control module to realize the accurate location to each described zone.
10. each described light source that variable color light is provided in 4 according to claim 1, it is characterized in that: described light source also comprises catoptron, the described light beam (41) that comes self-emitting light source shoots to telecontrol equipment (1) by the reflection of this catoptron.
11. the light source that variable color light can be provided is characterized in that, comprises light emitting source (2) and telecontrol equipment (1); The moving surface that comprises at least two zones with different qualities on the telecontrol equipment (1), the motion of this moving surface is so that the light beam (41) that comes self-emitting light source to described is sequentially met in this at least two zones; Each described regions carry or do not carry optical wavelength conversion material, or carry different optical wavelength conversion materials, thus have different light wavelength conversion characteristics; Each described optical wavelength conversion material describedly comes the light beam (41) of self-emitting light source to produce the light different from this light emitting source light beam wavelength by absorbing, and provides the second light beam (42) in the mode of reflection or transmission;
Described light source also comprises the second light emitting source (3) and light splitting optical filter (5), described the second light beam (42) reaches the not ipsilateral that shoots to respectively described light splitting optical filter (5) from the light beam of this second light emitting source, pools a branch of light beam by reflection or transmission respectively;
Also comprise the light emitting source control module, be controlled at and open described the second light emitting source (3) when opening described light emitting source (2) during the non-spoke, to obtain the mixed light output of two kinds of color of light.
12. the light source that variable color light is provided according to claim 11 is characterized in that: described light emitting source (2) sends blue light, and the second light emitting source (3) sends ruddiness; In described at least two zones, a zone has the green light material for transformation of wave length, another zone without optical wavelength conversion material to allow blue light directly see through.
13. the light source that variable color light is provided according to claim 11 is characterized in that: described light emitting source (2) sends UV light, and the second light emitting source sends ruddiness; In described at least two zones, there are two zones to carry respectively blue light material for transformation of wave length and green light material for transformation of wave length.
14. the light source that variable color light is provided according to claim 11, it is characterized in that: described light emitting source (2) sends blue light or UV light, the second light emitting source (3) sends blue light, telecontrol equipment (1) has at least two zones to carry respectively different optical wavelength conversion materials and be excited to produce ruddiness and green glow, also has the blue area territory that do not comprise optical wavelength conversion material adjacent with these two zones between these two zones at least, described light emitting source control module also enter in this territory, blue area self-emitting light source light beam (41) but range of exposures the time, control is opened the second light emitting source and described light emitting source turn-offs.
15. the light source that variable color light is provided according to claim 14 is characterized in that: telecontrol equipment (1) has two blue area territories of not comprising optical wavelength conversion material adjacent with these two zones between described two zones.
16. the light source that variable color light is provided according to claim 11 is characterized in that: in described at least two zones, a zone with sodium yellow material for transformation of wave length is arranged.
17. the light source that variable color light is provided according to claim 11, it is characterized in that: described light source also comprises locating device, produce a positioning signal of position of relying this telecontrol equipment of feedback according to the motion of described telecontrol equipment, offer described light emitting source control module to realize the accurate location to each described zone.
18. the light source that variable color light is provided according to claim 11 is characterized in that: described light source also comprises catoptron, the described light beam (41) that comes self-emitting light source shoots to telecontrol equipment (1) by the reflection of this catoptron.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110421026 CN102425757B (en) | 2008-05-30 | 2008-05-30 | Light source capable of providing color change light and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110421026 CN102425757B (en) | 2008-05-30 | 2008-05-30 | Light source capable of providing color change light and method thereof |
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| CN2008100675497A Division CN101592308B (en) | 2008-05-30 | 2008-05-30 | Light source capable of supplying polychromatic light and method thereof |
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| CN102425757A CN102425757A (en) | 2012-04-25 |
| CN102425757B true CN102425757B (en) | 2013-04-24 |
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| CN102748715B (en) * | 2012-06-11 | 2016-06-01 | 深圳市绎立锐光科技开发有限公司 | Light source, projection display and light fixture |
| CN104898363B (en) * | 2012-08-06 | 2018-07-24 | 深圳市光峰光电技术有限公司 | Light-emitting device and relevant projecting system |
| CN103631075B (en) * | 2012-08-24 | 2016-08-03 | 扬明光学股份有限公司 | Illuminator, projection arrangement and means of illumination |
| DE102014200937A1 (en) * | 2014-01-20 | 2015-07-23 | Osram Gmbh | Lighting device with primary light unit and phosphor element |
| CN110056808B (en) * | 2018-01-18 | 2021-02-09 | 深圳市绎立锐光科技开发有限公司 | Laser light emitting device |
| CN111381420B (en) * | 2018-12-27 | 2022-04-22 | 深圳光峰科技股份有限公司 | Display apparatus and control method thereof |
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| US5774196A (en) * | 1996-06-13 | 1998-06-30 | Texas Instruments Incorporated | Method and apparatus of aligning color modulation data to color wheel filter segments |
| US6324006B1 (en) * | 1999-05-17 | 2001-11-27 | Texas Instruments Incorporated | Spoke light recapture in sequential color imaging systems |
| US6621529B2 (en) * | 1999-12-28 | 2003-09-16 | Texas Instruments Incorporated | Common color wheel speed system |
| CN1888974A (en) * | 2005-06-27 | 2007-01-03 | 明基电通股份有限公司 | Projector and colour filtering device thereof |
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