CN102662301A - Light source system and related projection system - Google Patents
Light source system and related projection system Download PDFInfo
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Abstract
The embodiment of the invention discloses a light source system and a related projection system; the light source system comprises a light-emitting device; the light-emitting device comprises a light-emitting diode (LED) array, a laser source, a wavelength conversion device and a driving device; the LED array is used for generating first light; the laser source is used for generating laser; the wavelength conversion device comprises a wavelength conversion layer which is used for absorbing laser so as to generate stimulated light; the wavelength conversion device emits at least partial light of the stimulated light, or the mixed light of the at least partial light of the stimulated light and at least partial light of the laser which is not absorbed; the driving device is used for driving the wavelength conversion device, so that light spots which are formed by the laser on the wavelength conversion layer act on the wavelength conversion layer along a preset path; and the first light and the emitted light of the wavelength conversion device are combined into a light beam in the way of geometric light combination. The size and the cost can be effectively controlled while the light source system realizes higher output light flux.
Description
Technical field
The present invention relates to illumination and display technique field, particularly relate to a kind of light-source system and relevant projecting system.
Background technology
Light emitting diode (LED, Light Emitting Diode) is the semiconductor solid-state optical source that can directly be converted into electricity visible light, relatively conventional light source have the life-span long, light efficiency is high, radiationless and advantage of low power consumption.Along with the aggravation of problems such as the global energy shortage of puzzlement in recent years, climate warming, the semiconductor LED light source is more and more universal in the application of all trades and professions, has much the trend that replaces conventional light source.
For present technology, in normal operation, the highlight flux of single led chip (1mm * 1mm specification) is no more than 300 lumens (1m).For the higher light-source system of ask for something luminous flux output, can realize through led array.But, if require light-source system to reach the luminous flux output of traditional Halogen lamp LED (1200W-1500W), then require the led chip number of led array very huge, cause the volume of light-source system can't be applicable to some application scenario very greatly.For example, adopt the stage lamp of led array if will reach the luminous flux output of traditional Halogen lamp LED (1200W-1500W), the volume of stage lamp user's the scope of accepting head and shoulders above then, thereby can't be applied.
In the prior art, laser diode (LD, Laser Diode) has than LED and exceeds a lot of brightness, therefore adopts the light-source system of LD when reaching high light flux output, also to be effectively controlled by volume.But at present in versicolor LD, even the cost of the most cheap blue LD also exceeds much than the cost of LED, and the cost of green LD and red LD exceeds much than blue LD cost.And in the emergent light of existing light-source system; It is more weak and need be improved often to belong to green and red composition again; So if adopt LD to substitute LED to improve the luminous flux output of light-source system; Then often need adopt price expensive especially green and red LD, cause the cost of light-source system to increase substantially.Therefore, prior art can't effectively be controlled the volume and the cost of light-source system simultaneously when making light-source system reach higher luminous flux output.
Summary of the invention
The technical matters that the present invention mainly solves provide a kind of can be when reaching higher luminous flux output the effectively light-source system and the relevant projecting system of CONTROL VOLUME and cost.
The embodiment of the invention provides a kind of light-source system, it is characterized in that, comprises light-emitting device, and this light-emitting device comprises:
Led array is used to produce first light;
LASER Light Source is used to produce laser;
Wavelength converter comprises being used to absorb laser to produce the wavelength conversion layer of Stimulated Light, the light of part at least of this Wavelength converter outgoing Stimulated Light, or the mixed light of the light of part at least of the light of part at least of this Stimulated Light and unabsorbed laser;
Drive unit is used to drive Wavelength converter, so that the hot spot that laser forms on wavelength conversion layer acts on this wavelength conversion layer along predefined paths;
And the emergent light of first light and Wavelength converter is combined into a branch of light that closes with the mode that geometry closes light.
The embodiment of the invention also provides a kind of optical projection system, it is characterized in that, comprises above-mentioned light-source system.
Compared with prior art, the present invention includes following beneficial effect:
Because laser has than LED and exceeds a lot of brightness; Therefore the present invention adopts the laser excitation wavelength conversion layer to obtain Stimulated Light; Utilize the mixed light of this Stimulated Light or this Stimulated Light and unabsorbed laser to come the luminous of led array replenished, volume is effectively controlled when can make light-source system reach higher luminous flux output; Simultaneously; Can improve the green or red composition of light-source system through the Stimulated Light that more cheap ultraviolet or blue laser excitation wavelength conversion layer obtain; Thereby can avoid the use of green and red composition that expensive green LD and red LD come directly to improve light-source system, thereby can control the cost of light-source system more effectively.
Description of drawings
Fig. 1 is the side view of an embodiment of light-source system in the embodiment of the invention;
Fig. 2 a is the side view of another embodiment of light-source system in the embodiment of the invention;
Fig. 2 b is the front view of Fig. 2 a illustrated embodiment medium wavelength conversion equipment;
Fig. 3 is the side view of another embodiment of light-source system in the embodiment of the invention;
Fig. 4 is the side view of another embodiment of light-source system in the embodiment of the invention;
Fig. 5 is the side view of another embodiment of light-source system in the embodiment of the invention;
Fig. 6 a is the side view of another embodiment of light-source system in the embodiment of the invention;
Fig. 6 b is the synoptic diagram at the back side of the light-emitting area of led array in Fig. 6 a illustrated embodiment;
Fig. 7 is the side view of another embodiment of light-source system in the embodiment of the invention.
Embodiment
For quote and know for the purpose of, the explanation of the technical term that uses in hereinafter and the accompanying drawing is following:
Wavelength closes light, is meant the difference of utilizing optical wavelength, and two-beam is combined into a branch of light.
Close light how much, be meant the difference of utilizing the locus, two-beam is combined into a branch of light.
Invention thinking of the present invention comprises: because laser has than LED and exceeds a lot of brightness; Therefore the present invention adopts the wavelength conversion layer of laser excitation wavelength conversion equipment to obtain Stimulated Light; And make the light of part at least of this Stimulated Light of Wavelength converter outgoing; Or the mixed light of the light of part at least of the light of part at least of this Stimulated Light and unabsorbed laser; And the emergent light of Wavelength converter and the luminous geometry that carries out of led array closed light, so that the luminous of led array replenished, thereby volume is effectively controlled when making light-source system reach higher luminous flux output.Simultaneously; The Stimulated Light that can also obtain through more cheap blue laser excitation wavelength conversion layer improves the green or red composition of light-source system; Thereby avoid the use of green and red composition that expensive green LD and red LD come directly to improve light-source system, thereby can control the cost of light source more effectively.
Below in conjunction with accompanying drawing and embodiment the embodiment of the invention is elaborated.
Embodiment one
See also Fig. 1, Fig. 1 is the side view of an embodiment of light-source system in the embodiment of the invention.As shown in Figure 1, light-source system 100 comprises light-emitting device, and this light-emitting device comprises led array 110, LASER Light Source 120, Wavelength converter 130 and drive unit 140.
LASER Light Source 120 can be single laser diode, also can be the laser array of being made up of two above laser diodes.LASER Light Source 120 is used to produce laser L2.
Use present embodiment; Effective CONTROL VOLUME and cost when can make light-source system reach higher luminous flux output; Make a concrete analysis of as follows: because laser has than LED and exceeds a lot of brightness; Therefore present embodiment adopts the laser excitation wavelength conversion layer to obtain Stimulated Light, utilizes the mixed light of this Stimulated Light or this Stimulated Light and unabsorbed laser to come the luminous of led array replenished, and volume is effectively controlled when can make light-source system reach higher luminous flux output; Simultaneously; Can improve the green or red composition of light-source system through the Stimulated Light that more cheap ultraviolet or blue laser excitation wavelength conversion layer obtain; Thereby can avoid the use of green and red composition that expensive green LD and red LD come directly to improve light-source system, thereby can control the cost of light-source system more effectively.
Specifically for instance, the first light L1 is a green glow, and laser L2 is a blue light; The material for transformation of wave length of wavelength conversion layer is for absorbing laser L2 to produce the gold-tinted fluorescent powder of gold-tinted; And; Wavelength converter 130 also comprises optical filter (figure does not show), is positioned at the bright dipping side of material for transformation of wave length, is used for the green glow section part of the gold-tinted of transmission peak wavelength transition material generation; And filter out other part and the unabsorbed blue laser of this gold-tinted; Therefore Wavelength converter 130 outgoing green glow L3 only is used for replenishing the green glow composition of light-source system, thereby volume is effectively controlled when making light-source system reach higher luminous flux output.Simultaneously,, thereby can avoid the use of expensive green LD, control the cost of light-source system more effectively because the Stimulated Light that obtains through more cheap blue laser excitation wavelength conversion layer improves the green composition of light-source system.
Be understood that easily produce in the example of green glow at led array 110, Wavelength converter also can be used to improve other color of light composition of light-source system.For example, in other embodiments, above-mentioned optical filter also can be used for transmits yellow, and filters out unabsorbed blue laser, thereby makes all gold-tinteds of Wavelength converter 130 outgoing, to improve the yellow composition of light-source system; Perhaps, optical filter also can be used for the mixed light of part light of part light and the blue light of transmits yellow, and filters out the rest of light of this mixed light, thereby makes this part light of Wavelength converter 130 outgoing.Wavelength converter 130 also can not be provided with optical filter and the white light of all gold-tinteds of outgoing and unabsorbed blue light.
Be understood that easily in other embodiments, laser L2 also can be other laser, for example ultraviolet light or black light.When using ultraviolet light or near ultraviolet excitation wavelength conversion layer to obtain Stimulated Light, preferably, a Wavelength converter outgoing Stimulated Light gets into human eye to avoid ultraviolet light or black light.
Below only enumerated the led array that produces green glow has been carried out the example that luminous flux improves; Be understood that easily; In other embodiments; Also can utilize the emergent light of Wavelength converter under laser action, the led array that produces other color of light such as blue light, ruddiness, white light carried out luminous flux improve.For example, utilize the ruddiness of the Wavelength converter outgoing under the blue laser effect that comprises red light fluorescent powder that the red LED array is carried out the luminous flux raising.
Because present blue LD is the most cheap among all LD; For making structure comparatively simple; Can preferably use blue LD directly to improve the blue light ingredient of light-source system, and the emergent light of Wavelength converter is mainly used in the color of light composition that replenishes greater than blue light wavelength, therefore preferably; The spectrum of the Stimulated Light that wavelength conversion layer produces has at least a part to be positioned at the zone of wavelength greater than 460nm, for example gold-tinted or green glow.
In addition, what be worth explanation is that led chip 112 can be the LED that directly produces first light; Also can be the LED that can produce exciting light, and the surface of this LED cover the material for transformation of wave length that can this exciting light be converted into first light.For instance, led chip can be the LED that directly produces green glow, also can cover the blue led of green light fluorescent powder for the surface.
Further; The first light L1 that more effectively produces with led array 110 for the outgoing luminous energy that makes Wavelength converter carries out geometry and closes light; Wavelength converter 130 laterally arranges with led array 110, Wavelength converter 130 go out optical position and led array 110 should be as far as possible near.
Further; In the present embodiment; The light-emitting device of light-source system 100 can also comprise control device (figure does not show), is used to control the open and close and/or the luminous intensity of LASER Light Source 120, thereby makes Wavelength converter that emergent light L3 can optionally be provided as required; Or varying strength or different colours emergent light L3 are provided as required, such light-source system more can adapt to different application scenarios.
Present embodiment is to realize that with the simplest structure the geometry of the emergent light L3 of the first light L1 and Wavelength converter closes light, below will the embodiment that adopt other this geometry of structure realization to close light be elaborated.
Embodiment two
See also Fig. 2 a and Fig. 2 b, Fig. 2 a is the side view of another embodiment of light-source system in the embodiment of the invention; Fig. 2 b is the front view of Fig. 2 a illustrated embodiment medium wavelength conversion equipment.As shown in Figure 2, the light-emitting device of light-source system 200 comprises led array 210, LASER Light Source 220, Wavelength converter 230 and drive unit 240.Led array 210 comprises substrate 211 and a plurality of led chips 212.
Present embodiment and difference part embodiment illustrated in fig. 1 comprise:
(1) led array 210 also comprises light hole 214; Wavelength converter 230 is located at the back side one side of the light-emitting area of led array 210, and the back side that the emergent light L3 of Wavelength converter is incident in the light-emitting area of this led array also sees through this light hole 214 to be combined into a branch of light that closes with the first light L1.
(2) led array 210 also comprises respectively a plurality of collimation lenses 213 corresponding with a plurality of led chip 212, is used for first light that led chip produces is collimated, thereby reduces the dispersion angle of light-source system emergent light.Light-source system 200 also comprises another collimation lens 250, is used for the emergent light of Wavelength converter 230 is collimated, so that the emergent light of Wavelength converter is incident to light hole 214 as far as possible.For reducing the light-source system volume, light hole 214 should be as far as possible little, as long as can let the emergent light of collimation lens 250 see through.
(3) wavelength conversion layer 231 of Wavelength converter 230 comprises the first subregion 231a and the second subregion 231b, and two subregions are along the circumferential distribution of Wavelength converter.First subregion is provided with material for transformation of wave length, and second subregion is provided with scattering material.Under the driving of drive unit 240, the first subregion 231a and the second subregion 231b get into the irradiation area of laser in regular turn.When the first subregion 231a gets into the irradiation area of laser L2, the light of part at least of Wavelength converter outgoing Stimulated Light, or the mixed light of the light of part at least of the light of part at least of this Stimulated Light and unabsorbed laser; When the second subregion 231b gets into the irradiation area of laser, the light of part at least of this laser of Wavelength converter outgoing.
Embodiment three
See also Fig. 3, Fig. 3 is the side view of another embodiment of light-source system in the embodiment of the invention.As shown in Figure 3, the light-emitting device of light-source system 300 comprises led array 310, LASER Light Source 320, Wavelength converter 330, drive unit 340 and collimation lens 350.Led array 310 comprises substrate 311, a plurality of led chip 312 and collimation lens 313.
The difference part of present embodiment and Fig. 2 a illustrated embodiment comprises:
The led array of light-source system 300 does not comprise light hole; But the light-emitting device of light-source system 300 also comprises reflection unit 360; Be positioned at a side of the light-emitting area of led array; The emergent light L3 of Wavelength converter 330 is incident in this reflection unit through collimation lens 350, and is reflected to be combined into a branch of light that closes with the first light L1 by this reflection unit.For reducing the light-source system volume, reflection unit 360 should be as far as possible little, as long as can let the emergent light of collimation lens 350 see through.Reflection unit 360 can be catoptron, prism or optical filter or other, and every optical device that can change the emergent light light path of Wavelength converter 330 gets final product, and does not enumerate one by one here.
Preferably, Wavelength converter 330 and led array 310 mutual vertical settings, and all with reflection unit 360 have 45 the degree angle.
Embodiment four
See also Fig. 4, Fig. 4 is the side view of another embodiment of light-source system in the embodiment of the invention.As shown in Figure 4, the light-emitting device of light-source system 400 comprises led array 410, LASER Light Source 420, Wavelength converter 430, drive unit 440 and collimation lens 450.Led array 410 comprises substrate 411, a plurality of led chip 412, a plurality of collimation lens 413 and light hole 414.
The difference part of present embodiment and Fig. 2 a illustrated embodiment comprises:
Present embodiment adopts reflective Wavelength converter 430, and above-mentioned relatively each embodiment has the more compact advantage of structure.
Embodiment five
See also Fig. 5, Fig. 5 is the side view of another embodiment of light-source system in the embodiment of the invention.As shown in Figure 5, the light-emitting device of light-source system 500 comprises led array 510, LASER Light Source 520, Wavelength converter 530, drive unit 540, collimation lens 550 and light path discriminating device 570.Led array 510 comprises substrate 511, a plurality of led chip 512, a plurality of collimation lens 513 and light hole 514.
Present embodiment and difference part embodiment illustrated in fig. 4 comprise:
Light path discriminating device 570 is specially the cambered surface reflection unit of the reflecting surface that comprises light hole and light hole outside.Laser L2 is incident on the Wavelength converter 530 through light hole; The major part of the emergent light L3 of Wavelength converter 530 is reflected by the reflecting surface of cambered surface reflection unit; Collecting collimation through collimation lens 550 again is the emergent light of light-source system, and fraction leaks from light hole.Present embodiment substitutes the beam split optical filter with cambered surface reflection unit 570, has lower-cost advantage.
Preferably; Cambered surface reflection unit 570 is the part of semielliptical shape or semielliptical shape; And Wavelength converter 530 go into the focus that optical position is arranged at this ellipsoid, thereby most of light of Wavelength converter 530 outgoing reflexes to another focus of this ellipsoid through the reflecting surface of cambered surface reflection unit; Perhaps; Cambered surface reflection unit 760 is a semisphere or a hemispheric part; And the optical position of going into of Wavelength converter 530 is arranged at a bit near this sphere centre of sphere; Thereby most of light of Wavelength converter 530 outgoing reflexes to and this another point about centre of sphere symmetry through the reflecting surface of cambered surface reflection unit, collects so that carry out light.
Embodiment six
See also Fig. 6 a and Fig. 6 b, Fig. 6 a is the side view of another embodiment of light-source system in the embodiment of the invention; Fig. 6 b is the synoptic diagram at the back side of the light-emitting area of led array in Fig. 6 a illustrated embodiment.Shown in Fig. 6 a, the light-emitting device of light-source system 600 comprises led array 610, LASER Light Source 620, Wavelength converter 630, drive unit 640, collimation lens 650 and light path discriminating device 670.Led array 610 comprises substrate 611, a plurality of led chip 612, a plurality of collimation lens 613 and light hole 614.
Present embodiment and difference part embodiment illustrated in fig. 4 comprise:
(1) light-emitting device also comprises collimation lens 680, catoptron 690, and collimation lens 680 is used for LASER Light Source 620 emitting lasers are collimated to catoptron 690, and this laser reflexes to light path discriminating device 670 through catoptron 690.
(2) light-source system 600 comprises three color of light passages, and one of them color of light passage comprises above-mentioned light-emitting device.Two color of light passages comprise the light source that is used to produce second, third light that is different from first light respectively in addition; This light source can comprise LED, LD or use LED or the luminescent device of LD excitation wavelength transition material generation Stimulated Light, be specially red LED array 6110 and blue LED arrays 6120 in the present embodiment.Light-source system also comprises and is criss-cross wavelength splicer spare; This wavelength splicer spare specifically comprises two dichroic sheets 6130 and 6140, and this wavelength splicer spare is used for the light of respectively restrainting from each color of light passage is combined into a branch of light that closes with the mode that wavelength closes light.
(3) light-source system 600 also comprises fly's-eye lens 6150 and condenser lens 6160; Fly's-eye lens 6150 is used for the emergent light of wavelength splicer spare is carried out shaping and homogenising processing, and condenser lens 6160 is used for the emergent light of fly's-eye lens 6150 is collected and focused on.
For ease of understanding present embodiment, illustrate the principle of work of present embodiment light-source system below:
Specifically for instance, led array 610 produces green glow, and LASER Light Source 620 produces blue light, and this blue light converges to Wavelength converter through 670 reflections of light path discriminating device and through lens 650.Wavelength converter 630 comprises and is used to the gold-tinted fluorescent powder and the optical filter that absorb blue light and produce gold-tinted, and this gold-tinted fluorescent powder absorbs that the gold-tinted of outgoing is filtered into green glow by this optical filter behind the blue light, so Wavelength converter outgoing green glow and unabsorbed blue light.Green glow transmitted light path discriminating device 670 in the emergent light of Wavelength converter 630 also passes light hole 614, and it is a branch of green glow that the green glow that produces with led array 610 closes light how much, as the emergent light of the color of light passage at light-emitting device place.Two other color of light passage is outgoing ruddiness and blue light respectively; The wavelength splicer spare of forming by dichroic sheet 6130 and 6140 to three passages respectively ruddiness, green glow and the blue light wavelength of outgoing to close light be a branch of white light; This white light is converged to a bit by condenser lens 6160 after fly's-eye lens 6150 shapings and homogenising processing again.
Light-source system also can comprise the color of light passage more than two or four.Be understood that easily; Above-mentioned light-emitting device also can be applied in two above color of light passages; For example in the color of light passage at red LED array 6110 places, also can add a light-emitting device, this light-emitting device laser excitation wavelength conversion equipment capable of using is with outgoing ruddiness.
In addition, preferably, shown in Fig. 6 b; Light hole 614 outsides at the back side of the light-emitting area of led array 610 are provided with heat pipe 6100; For radiating fin was set, this structure can reduce the length of light-source system, and helped leaving for the enough spaces of Wavelength converter 630.
There is following problem in Fig. 6 a illustrated embodiment, if Wavelength converter 630 outgoing white lights, the redness of this white light and blue portion will be filtered out and can not be as the emergent light of light-source system by wavelength splicer spare.For this reason, the present invention provides embodiment illustrated in fig. 7.
Embodiment seven
See also Fig. 7, Fig. 7 is the side view of another embodiment of light-source system in the embodiment of the invention.As shown in Figure 7, light-source system 700 comprises three color of light passages, and the light-emitting device of a color of light passage comprises led array 710, LASER Light Source 720, Wavelength converter 730, drive unit 740, collimation lens 750 and 780, catoptron 790a and 790b; Two color of light passages comprise led array 7110 and 7120 respectively in addition.Light-source system also comprises fly's-eye lens 7150 and condenser lens 7160.For ease of describing, below the color of light passage at light-emitting device place is called the first color of light passage, the color of light passage that led array 7110 and 7120 belongs to is called second, third color of light passage respectively.
The difference part of present embodiment and Fig. 6 a illustrated embodiment comprises:
(1) Wavelength converter adopts transmission-type, and the laser that LASER Light Source 720 produces reflexes to Wavelength converter 730 through catoptron 790a and 790b successively, and the emergent light of Wavelength converter sees through the light hole of led array 710 behind collimation lens 750 collimations.
(2) light-source system 700 comprises and is criss-cross light-integrating subassembly, and this light-integrating subassembly comprises that the guide portion 7140 that is positioned at its center closes light portion 7130 with being positioned at guide portion 7140 outside wavelength, and this light-integrating subassembly has substituted the wavelength splicer spare among Fig. 6 a.Wavelength closes light portion 7130 and is used for the emergent light of the led array 710 of light-emitting device and the part emergent light of second, third color of light passage are merged into first via light with the mode that wavelength closes light; Guide portion 7140 is used for the emergent light of the Wavelength converter 730 of light-emitting device and first via light are merged into the emergent light of light-source system with the mode of closing light for how much, and the residue emergent light outgoing that hinders second, third color of light passage is the emergent light of light-source system.
Particularly; In the present embodiment, light-integrating subassembly comprises the dichroic sheet of being with light hole 7140, and this dichroic sheet comprises this light hole 7140 and is positioned at the outside filter area 7130 of this light hole; The guide portion that is light-integrating subassembly is this light hole, and wavelength closes light portion and is this filter area.
For ease of understanding present embodiment, illustrate the principle of work of present embodiment light-source system below:
Specifically for instance; Led array 710 produces green glow; LASER Light Source 720 produces blue light; Wavelength converter 630 comprises and is used to the gold-tinted fluorescent powder that absorbs blue light and produce gold-tinted, the white light that the Wavelength converter outgoing is made up of gold-tinted and unabsorbed blue light, and this white light passes the light hole of led array 710.The green glow of led array 710 outgoing, led array 7110 and 7120 respectively most of light of ruddiness and the blue light of outgoing to close light through filter area 7130 wavelength of light-integrating subassembly be first via white light.After the white light of Wavelength converter 730 outgoing passes the light hole of led array 710, see through the light hole 7140 of light-integrating subassembly, merge into the emergent light of light-source system with the mode of closing light for how much with first via white light.The led array 7110 and 7120 fraction light of ruddiness and the blue light of outgoing respectively leaks and can not outgoing be the emergent light of light-source system through the light hole 7140 of light-integrating subassembly.
With respect to Fig. 6 a illustrated embodiment, it can outgoing be the emergent light of light-source system that present embodiment makes the white light of Wavelength converter outgoing through light-integrating subassembly, is not filtered and do not have part light, therefore has the higher advantage of the bigger brightness of luminous flux.
In other embodiments; Light-integrating subassembly also can comprise the dichroic sheet of being with reflection unit; This dichroic sheet comprises this reflection unit and is positioned at the outside filter area of this reflection unit, and promptly the guide portion of light-integrating subassembly be this reflection unit, and it is this filter area that wavelength closes light portion.This is the alternative embodiment embodiment illustrated in fig. 7 that those skilled in the art can realize, is not described further here.
What deserves to be mentioned is; The residue emergent light outgoing of guide portion 7140 and second, third color of light passage of nonessential obstruction is the emergent light of light-source system; For example; When guide portion 7140 is polaroid; Can the emergent light of Wavelength converter and the residue emergent light of second, third color of light passage be made as polarized light, the emergent light that this moment, guide portion 7140 can the guide wavelength conversion equipment is merged into the second road light with the residue emergent light of second, third color of light passage with the mode that polarization closes light, and the mode that this second road light and first via light close light with geometry is merged into the emergent light of light-source system.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
The embodiment of the invention also provides a kind of optical projection system, comprises light-source system, and this light-source system can have structure and the function among above-mentioned each embodiment.This optical projection system can adopt various shadow casting techniques, for example LCD (LCD, Liquid Crystal Display) shadow casting technique, digital light path processor (DLP, Digital Light Processor) shadow casting technique.In addition, above-mentioned light-source system also can be applied to illuminator, for example stage lighting illumination.
The above is merely embodiment of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (15)
1. a light-source system is characterized in that, comprises light-emitting device, and this light-emitting device comprises:
Led array is used to produce first light;
LASER Light Source is used to produce laser;
Wavelength converter; Comprise and be used to absorb said laser to produce the wavelength conversion layer of Stimulated Light; At least the part light of the said Stimulated Light of this Wavelength converter outgoing, or the mixed light of the light of part at least of the light of part at least of this Stimulated Light and unabsorbed said laser;
And the emergent light of first light and said Wavelength converter is combined into a branch of light that closes with the mode that geometry closes light.
2. light-source system according to claim 1; It is characterized in that; This light-source system also comprises: drive unit is used to drive said Wavelength converter, so that the hot spot that said laser forms acts on this wavelength conversion layer along predefined paths on said wavelength conversion layer.
3. light-source system according to claim 1 is characterized in that: said led array comprises light hole, and the back side that the emergent light of said Wavelength converter is incident in the light-emitting area of this led array also sees through this light hole to be combined into a branch of light that closes with first light.
4. light-source system according to claim 3 is characterized in that: the said light hole outside at the back side of the light-emitting area of said led array is provided with heat pipe.
5. light-source system according to claim 1; It is characterized in that: said light-emitting device also comprises reflection unit; Be positioned at a side of the light-emitting area of led array, the emergent light of said Wavelength converter reflects to be combined into a branch of light that closes with first light through this reflection unit.
6. light-source system according to claim 1 is characterized in that: said Wavelength converter is set to reflective; Said light-emitting device also comprises the light path discriminating device, is used to guide said laser to be incident to said Wavelength converter, and the light of the part at least outgoing that guides said Wavelength converter emergent light is to be combined into a branch of light that closes with first light.
7. light-source system according to claim 1 is characterized in that: this light-source system comprises at least two color of light passages and wavelength splicer spare; At least one optical channel in said at least two color of light passages comprises said light-emitting device, and at least one optical channel comprises the light source that is used to produce second light; Said wavelength splicer spare is used for the light of respectively restrainting from said at least two color of light passages is combined into a branch of light that closes with the mode that wavelength closes light.
8. light-source system according to claim 1 is characterized in that: this light-source system comprises the first color of light passage, second color of light passage and the light-integrating subassembly; The first color of light passage comprises said light-emitting device, and the second color of light passage comprises the light source that is used to produce second light;
Said light-integrating subassembly comprises that wavelength closes light portion and guide portion, and this wavelength closes light portion and is used for the emergent light of the led array of said light-emitting device and part second light of the second color of light passage are merged into first via light with the mode that wavelength closes light; This guide portion is used for the emergent light of the Wavelength converter of said light-emitting device and said first via light are merged into the mode of closing light for how much emergent light of light-source system.
9. light-source system according to claim 8 is characterized in that: residue second beam projecting that said guide portion also is used to hinder the second color of light passage is the emergent light of light-source system.
10. light-source system according to claim 9; It is characterized in that: said light-integrating subassembly comprises the dichroic sheet of being with light hole; This dichroic sheet comprises this light hole and is positioned at the outside filter area of this light hole, and said guide portion be this light hole, and it is this filter area that said wavelength closes light portion.
11. light-source system according to claim 9; It is characterized in that: said light-integrating subassembly comprises the dichroic sheet of being with reflection unit; This dichroic sheet comprises this reflection unit and is positioned at the outside filter area of this reflection unit; Said guide portion is this reflection unit, and said wavelength closes light portion and is this filter area.
12. according to each described light-source system in the claim 1 to 11, it is characterized in that: said laser is blue light or ultraviolet light, the spectrum of said Stimulated Light has at least a part to be positioned at the zone of wavelength greater than 460nm.
13. light-source system according to claim 12 is characterized in that: said laser is blue light, and said Stimulated Light is gold-tinted or green glow.
14. according to each described light-source system in the claim 1 to 11, it is characterized in that: said light-emitting device also comprises control device, is used to control the open and close and/or the luminous intensity of said LASER Light Source.
15. an optical projection system is characterized in that, comprises like each described light-source system in the claim 1 to 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123211.5A CN102662301B (en) | 2012-03-11 | 2012-04-24 | Light source system and related projection system |
| CN201510251472.9A CN104865783B (en) | 2012-04-24 | 2012-04-24 | Light source system and related projection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100620378 | 2012-03-11 | ||
| CN201210062037.8 | 2012-03-11 | ||
| CN201210062037 | 2012-03-11 | ||
| CN201210123211.5A CN102662301B (en) | 2012-03-11 | 2012-04-24 | Light source system and related projection system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510251472.9A Division CN104865783B (en) | 2012-04-24 | 2012-04-24 | Light source system and related projection system |
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| CN102662301A true CN102662301A (en) | 2012-09-12 |
| CN102662301B CN102662301B (en) | 2015-05-27 |
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| CN201210123211.5A Active CN102662301B (en) | 2012-03-11 | 2012-04-24 | Light source system and related projection system |
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Denomination of invention: Light source system and related projection system Effective date of registration: 20171113 Granted publication date: 20150527 Pledgee: CITIC Bank Limited by Share Ltd. Shenzhen branch Pledgor: APPOTRONICS Corp.,Ltd. Registration number: 2017440020053 |
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