CN104865783B - Light source system and related projection system - Google Patents
Light source system and related projection system Download PDFInfo
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- CN104865783B CN104865783B CN201510251472.9A CN201510251472A CN104865783B CN 104865783 B CN104865783 B CN 104865783B CN 201510251472 A CN201510251472 A CN 201510251472A CN 104865783 B CN104865783 B CN 104865783B
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
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 achieves higher output light flux.
Description
The present invention is Application No. 201210123211.5, entitled " light-source system and relevant projecting system ", the applying date
It is the divisional application of the patent of invention of 2012.4.24.
Technical field
The present invention relates to illuminate and display technology field, more particularly to a kind of light-source system and relevant projecting system.
Background technology
Light emitting diode (LED, Light Emitting Diode) can be that electricity is directly converted into partly leading for visible ray
Body solid light source, relatively conventional light source has the advantages that long lifespan, light efficiency are high, radiationless with low-power consumption.With perplexing in recent years
The aggravation of the problems such as energy shortage, climate warming in the whole world, Semiconductor LED light source is increasingly popularized in the application of all trades and professions,
The trend of big substituted conventional light source.
For current technology, in normal operation, the maximum light of single led chip (1mm × 1mm specifications)
Flux is no more than 300 lumens (lm).Require that luminous flux exports light-source system higher for some, can by LED array come
Realize.But, if it is desired to light-source system reaches the luminous flux output of conventional halogen lamp (1200W-1500W), then require LED array
LED chip number it is very huge, cause the sufficiently bulky of light-source system and some application scenarios cannot be applied to.For example, adopting
Exported to reach the luminous flux of conventional halogen lamp (1200W-1500W) with the stage lamp of LED array, then the body of stage lamp
Product far beyond the scope that receives of user, thus be able to cannot be applied.
In the prior art, laser diode (LD, Laser Diode) has and is higher by many brightness than LED, therefore uses
Volume is also effectively controlled while the light-source system of LD can be exported high light flux is reached.But at present in shades of colour
LD in, even cost of the cost of generally the least expensive blue LD also than LED is higher by a lot, and the cost of green LD and red LD
It is higher by much than blue LD costs again.And in the emergent light of existing light-source system, often again belong to green with red color components it is weaker and
Needs are improved, so substitute LED according to LD being exported to improve the luminous flux of light-source system, then generally require to use price
Particularly expensive green and red LD, cause the cost of light-source system to increase substantially.Therefore, prior art makes light-source system
When reaching higher luminous flux output, it is impossible to while the effectively volume and cost of control light-source system.
The content of the invention
Relatively have the present invention solves the technical problem of providing while one kind can be exported higher luminous flux is reached
The light-source system and relevant projecting system of effect control volume and cost.
The embodiment of the present invention provides a kind of light-source system, it is characterised in that including light-emitting device, the light-emitting device includes：
LED array, for producing the first light；
LASER Light Source, for producing laser；
Wavelength converter, including the wavelength conversion layer for absorbing laser to produce Stimulated Light, the Wavelength converter
At least part of light of outgoing Stimulated Light, or at least part of light of the Stimulated Light is mixed with least part of light of unabsorbed laser
Closing light；
Drive device, for driving Wavelength converter, so that the hot spot that laser is formed on wavelength conversion layer is along predetermined
Path acts on the wavelength conversion layer；
Also, the first light is combined into a branch of closing light with the emergent light of Wavelength converter in the way of geometry closing light.
The embodiment of the present invention also provides a kind of optical projection system, it is characterised in that including above-mentioned light-source system.
Compared with prior art, the present invention includes following beneficial effect：
Many brightness are higher by than LED because laser has, therefore the present invention is obtained using laser excitation wavelength conversion layer
Stimulated Light, is mended with the mixed light of unabsorbed laser using the Stimulated Light or the Stimulated Light to the luminous of LED array
Fill, light-source system can be made to reach volume while higher luminous flux is exported and be effectively controlled；Meanwhile, can be by relatively inexpensive
The Stimulated Light that obtains of ultraviolet or blue laser excitation wavelength conversion layer improve the green or red color components of light-source system so that
The green and red color components of light-source system, thus energy can be avoided directly to improve using expensive green LD and red LD
The cost of enough relatively efficiently control light-source systems.
Brief description of the drawings
Fig. 1 is the side view of one embodiment of light-source system in the embodiment of the present invention；
Fig. 2 a are the side views of another embodiment of light-source system in the embodiment of the present invention；
Fig. 2 b are the front views of Fig. 2 a illustrated embodiment medium wavelength conversion equipments；
Fig. 3 is the side view of another embodiment of light-source system in the embodiment of the present invention；
Fig. 4 is the side view of another embodiment of light-source system in the embodiment of the present invention；
Fig. 5 is the side view of another embodiment of light-source system in the embodiment of the present invention；
Fig. 6 a are the side views of another embodiment of light-source system in the embodiment of the present invention；
Fig. 6 b are the schematic diagrames at the back side of the light-emitting area of LED array in Fig. 6 a illustrated embodiments；
Fig. 7 is the side view of another embodiment of light-source system in the embodiment of the present invention.
Specific embodiment
For the sake of quoting and understanding, the technical term that hereafter and in accompanying drawing uses is described as follows：
Wavelength closing light, refers to, using the difference of optical wavelength, two-beam to be combined into light beam.
Geometry closing light, refers to the difference of utilization space position, and two-beam is combined into light beam.
Invention thinking of the invention includes：Many brightness, therefore the present invention are higher by using sharp than LED because laser has
The wavelength conversion layer of light excitation wavelength conversion equipment obtains Stimulated Light, and makes at least portion of the Wavelength converter outgoing Stimulated Light
Light splitting, or at least part of light and at least part of light of unabsorbed laser of the Stimulated Light mixed light, and by wavelength convert
The emergent light of device carries out geometry closing light with the luminous of LED array, is supplemented with to the luminous of LED array, so that light source
System reaches volume while higher luminous flux is exported and is effectively controlled.At the same time it can also pass through relatively inexpensive blue laser
The Stimulated Light that excitation wavelength conversion layer is obtained improve light-source system green or red color components, so as to avoid use it is expensive
Green LD and red LD directly to improve the green and red color components of light-source system, it is thus possible to relatively efficiently control light source
Cost.
The embodiment of the present invention is described in detail with implementation method below in conjunction with the accompanying drawings.
Embodiment one
Fig. 1 is referred to, Fig. 1 is the side view of one embodiment of light-source system in the embodiment of the present invention.As shown in figure 1,
Light-source system 100 includes light-emitting device, and the light-emitting device includes LED array 110, LASER Light Source 120, Wavelength converter 130
And drive device 140.
LED array 110 includes substrate 111 and the multiple LED chips 112 being arranged on substrate 111.Substrate 111 is preferably
Copper base, LED chip can be fixed on substrate 111 using welding, bonding or other connected modes.LED chip array can be with
Arranged in arrays, line strip arrangement or circular concentric arrangement etc., it can need and matching design according to the difference of application field.LED
Chip 112 is used to produce the first light L1.
LASER Light Source 120 can be single laser diode, it is also possible to be by swashing that two or more laser diode is constituted
Optical arrays.LASER Light Source 120 is used to produce laser L2.
Wavelength converter 130 is included for absorbing laser L2 to produce the wavelength conversion layer of Stimulated Light.Wavelength conversion layer
Including for absorbing laser L2 to produce the material for transformation of wave length of Stimulated Light.The most frequently used material for transformation of wave length is fluorescent material, example
Such as YAG fluorescent powder, it can absorb the Stimulated Light of blue light and stimulated emission yellow.Material for transformation of wave length be also possible to be quantum dot,
The material with wavelength conversion capability such as fluorescent dye, however it is not limited to fluorescent material.Wavelength converter 130 is used for outgoing Stimulated Light
At least part of light, or at least part of light and at least part of light of unabsorbed laser of the Stimulated Light mixed light；Can be with
Make the light of Wavelength converter outgoing needs by setting the Wavelength converter optics such as including optical filter, this is known
Technology, does not repeat herein.Also, the first light L1 that the emergent light L3 of Wavelength converter 130 is produced with LED array 110
A branch of closing light is combined into the way of geometry closing light.
Drive device 140 is used to drive Wavelength converter 130 to move, so that laser L2 is formed on the wavelength conversion layer
Hot spot act on the wavelength conversion layer along predefined paths, to avoid laser long duration of action in the wavelength conversion layer of same position
The caused elevated problem of wavelength conversion layer temperature.Specifically, in the present embodiment, drive device 140 is used to drive wavelength to turn
Changing device 130 is rotated, so that the hot spot that laser L2 is formed on the wavelength conversion layer acts on the ripple along predetermined circular path
Conversion layer long.Preferably, Wavelength converter 130 is in the form of annular discs, and wavelength conversion layer is in the ring-type concentric with the disk, drives dress
It is the motor in cylinder to put 140, and drive device 140 is coaxial with Wavelength converter 130 fixed.
Using the present embodiment, can make light-source system reach higher luminous flux export while more effectively control volume with into
This, makes a concrete analysis of as follows：Many brightness are higher by than LED because laser has, therefore the present embodiment uses laser excitation wavelength
Conversion layer obtains Stimulated Light, using the mixed light of the Stimulated Light or the Stimulated Light and unabsorbed laser come to LED array
It is luminous to be supplemented, light-source system can be made to reach volume while higher luminous flux is exported and to be effectively controlled；Meanwhile, can be with
The Stimulated Light that is obtained by relatively inexpensive ultraviolet or blue laser excitation wavelength conversion layer improves the green or red of light-source system
Color composition, such that it is able to avoid directly to improve using expensive green LD and red LD the green and red of light-source system
Composition, it is thus possible to relatively efficiently control the cost of light-source system.
For concrete example, the first light L1 is green glow, and laser L2 is blue light；The material for transformation of wave length of wavelength conversion layer is
Laser L2 is absorbed to produce the yellow fluorescent powder of gold-tinted；Also, Wavelength converter 130 also includes optical filter (not shown), position
In the light emission side of material for transformation of wave length, the green glow section part of the gold-tinted produced for transmission peak wavelength transition material, and filter out this
The other parts of gold-tinted and unabsorbed blue laser, therefore the only outgoing green glow L3 of Wavelength converter 130, for supplementing
The green color components of light-source system, so that light-source system reaches volume while higher luminous flux is exported and is effectively controlled.Together
When, improved due to the Stimulated Light obtained by relatively inexpensive blue laser excitation wavelength conversion layer light-source system green into
Point, such that it is able to avoid using expensive green LD, relatively efficiently control the cost of light-source system.
It is easily understood that in the example that LED array 110 produces green glow, Wavelength converter can be used for improving
Other color of light compositions of light-source system.For example, in other embodiments, above-mentioned optical filter can be used for transmiting gold-tinted, and
Unabsorbed blue laser is filtered out, so that all gold-tinteds of the outgoing of Wavelength converter 130, to improve the Huang of light-source system
Color composition；Or, optical filter can be used for transmiting the mixed light of the part light with the part light of blue light of gold-tinted, and filter out this
The remaining light of mixed light, so that the outgoing of the Wavelength converter 130 part light.Wavelength converter 130 can also be not provided with
The white light of optical filter and all gold-tinteds of outgoing and unabsorbed blue light.
It is easily understood that in other embodiments, laser L2 can also be other laser, such as ultraviolet light or near ultraviolet
Light.When Stimulated Light is obtained using ultraviolet light or near ultraviolet excitation wavelength conversion layer, it is preferable that Wavelength converter outgoing
Stimulated Light, to avoid ultraviolet light or black light from entering human eye.
Below the example to producing the LED array of green glow to carry out luminous flux raising is only listed, so it is easy to understand that at it
In its embodiment, it is also possible to the emergent light using Wavelength converter under laser action, to producing blue light, feux rouges, white light etc.
The LED array of other color of light carries out luminous flux raising.For example, using the Wavelength converter comprising red light fluorescent powder in blue light
The feux rouges of outgoing carries out luminous flux raising to red LED array under laser action.
Due to current blueness LD be in all LD it is the cheapest, to make structure relatively simple, preferably use blueness LD
The blue light ingredient of light-source system is directly improved, and the emergent light of Wavelength converter is mainly used in face of the supplement more than blue light wavelength
Color light components, it is preferred that the spectrum of the Stimulated Light of wavelength conversion layer generation is at least part of to be more than 460nm positioned at wavelength
Region, such as gold-tinted or green glow.
Additionally, what deserves to be explained is, LED chip 112 can be the LED for directly producing the first light；Can also produce
The LED of raw exciting light, and the surface of the LED covers the material for transformation of wave length that the exciting light can be converted to the first light.Lift
For example, LED chip can be the LED for directly producing green glow, or surface covers the blue led of green light fluorescent powder.
Further, in order that the outgoing luminous energy of Wavelength converter more effectively with LED array 110 produce the first light
Line L1 carries out geometry closing light, and Wavelength converter 130 be arranged in parallel with LED array 110, the light extraction position of Wavelength converter 130
Putting should be close proximity to LED array 110.
Further, in the present embodiment, the light-emitting device of light-source system 100 can also include that control device (is schemed not
Show), open and close and/or luminous intensity for controlling LASER Light Source 120, so that Wavelength converter can be according to need
Emergent light L3 to be optionally provided, or varying strength or different colours emergent light L3, such light source system are provided as needed
System is suitable for different application scenarios.
The present embodiment is to realize that the first light L1 is several with the emergent light L3 of Wavelength converter with simplest structure
What closing light, below by realizing that the embodiment of the geometry closing light is described in detail using other structures.
Embodiment two
Refer to the side view that Fig. 2 a and Fig. 2 b, Fig. 2 a is another embodiment of light-source system in the embodiment of the present invention；Figure
2b is the front view of Fig. 2 a illustrated embodiment medium wavelength conversion equipments.As shown in Fig. 2 the light-emitting device of light-source system 200 includes
LED array 210, LASER Light Source 220, Wavelength converter 230 and drive device 240.LED array 210 include substrate 211 with it is many
Individual LED chip 212.
The present embodiment includes with the difference part of embodiment illustrated in fig. 1：
(1) LED array 210 also includes light hole 214, and Wavelength converter 230 is located at the light-emitting area of LED array 210
Reverse side, the emergent light L3 of Wavelength converter is incident in the back side of the light-emitting area of the LED array and passes through the light hole 214
A branch of closing light is combined into with the first light L1.
(2) LED array 210 also includes multiple collimation lenses 213 corresponding with multiple LED chips 212 respectively, for right
The first light that LED chip is produced is collimated, so as to reduce the dispersion angle of light-source system emergent light.Light-source system 200 is also
Including another collimation lens 250, collimated for the emergent light to Wavelength converter 230, so that Wavelength converter
Emergent light is incident to light hole 214 as far as possible.To reduce light-source system volume, light hole 214 should be as small as possible, as long as can allow
The emergent light of collimation lens 250 is passed through.
(3) wavelength conversion layer 231 of Wavelength converter 230 includes the first subregion 231a and the second subregion 231b, two
Subregion is along the circumferentially distributed of Wavelength converter.First subregion is provided with material for transformation of wave length, and the second subregion is provided with scattering material.
Under the driving of drive device 240, the first subregion 231a and the second subregion 231b is sequentially into the irradiation area of laser.When first point
When area 231a enters the irradiation area of laser L2, at least part of light of Wavelength converter outgoing Stimulated Light, or the Stimulated Light
The mixed light of at least part of light and at least part of light of unabsorbed laser；When the second subregion 231b enters the irradiated region of laser
During domain, at least part of light of the Wavelength converter outgoing laser.
Embodiment three
Fig. 3 is referred to, Fig. 3 is the side view of another embodiment of light-source system in the embodiment of the present invention.As shown in figure 3,
The light-emitting device of light-source system 300 include LED array 310, LASER Light Source 320, Wavelength converter 330, drive device 340 and
Collimation lens 350.LED array 310 includes substrate 311, multiple LED chips 312 and collimation lens 313.
The present embodiment includes with the difference part of Fig. 2 a illustrated embodiments：
The LED array of light-source system 300 does not include light hole, but the light-emitting device of light-source system 300 also includes that reflection is filled
360 are put, positioned at the side of the light-emitting area of LED array, the collimated lens 350 of emergent light L3 of Wavelength converter 330 are incident in
The reflection unit, and a branch of closing light is combined into with the first light L1 by reflection unit reflection.To reduce light-source system volume, instead
Injection device 360 should be as small as possible, as long as the emergent light of collimation lens 350 can be allowed to pass through.Reflection unit 360 can be anti-
Penetrate mirror, prism or optical filter or other, the optics of every emergent light light path that can change Wavelength converter 330 is i.e.
Can, do not enumerate herein.
Preferably, Wavelength converter 330 is arranged in a mutually vertical manner with LED array 310, and has with reflection unit 360
45 degree of angle.
Example IV
Fig. 4 is referred to, Fig. 4 is the side view of another embodiment of light-source system in the embodiment of the present invention.As shown in figure 4,
The light-emitting device of light-source system 400 include LED array 410, LASER Light Source 420, Wavelength converter 430, drive device 440 and
Collimation lens 450.LED array 410 includes substrate 411, multiple LED chips 412, multiple collimation lenses 413 and light hole
414。
The present embodiment includes with the difference part of Fig. 2 a illustrated embodiments：
Wavelength converter 430 is set to reflective；The light-emitting device of light-source system 400 also includes light path discriminating device
470, for guiding laser L2 to be incident to Wavelength converter, and at least part of light of guide wavelength conversion equipment emergent light L3 goes out
Penetrate and be combined into a branch of closing light with the first light L1.In the present embodiment, light path discriminating device 470 is specially reflection laser and transmitted wave
The light splitting optical filter of the Stimulated Light in conversion equipment emergent light long.Laser L2 is after the reflection of light splitting optical filter 470 through collimation lens
450 are incident to Wavelength converter 430, and emergent light L3 collimated lens 450 outgoing to the light splitting of Wavelength converter 430 filters
Piece 470, from the outgoing of light hole 414 and the first light L1 geometry closing lights after light splitting filter transmission.
The present embodiment uses reflective Wavelength converter 430, has structure more compact with respect to the various embodiments described above
Advantage.
Embodiment five
Fig. 5 is referred to, Fig. 5 is the side view of another embodiment of light-source system in the embodiment of the present invention.As shown in figure 5,
The light-emitting device of light-source system 500 include LED array 510, LASER Light Source 520, Wavelength converter 530, drive device 540,
Collimation lens 550 and light path discriminating device 570.LED array 510 includes that substrate 511, multiple LED chips 512, multiple collimations are saturating
Mirror 513 and light hole 514.
The present embodiment includes with the difference part of embodiment illustrated in fig. 4：
Light path discriminating device 570 is specially the cambered surface reflection unit for including the reflecting surface outside loophole and loophole.Swash
Light L2 is incident on Wavelength converter 530 by loophole, and the major part of the emergent light L3 of Wavelength converter 530 is by cambered surface
The reflective surface of reflection unit, then it is the emergent light of light-source system that collimated lens 550 collect collimation, fraction is from loophole
Leakage.The present embodiment substitutes light splitting optical filter with cambered surface reflection unit 570, with lower-cost advantage.
Preferably, cambered surface reflection unit 570 is in semielliptical shape or a part for semielliptical shape, and Wavelength converter 530
Entrance positions be arranged at a focus of the ellipsoid so that most of light of the outgoing of Wavelength converter 530 reflects through cambered surface
The reflective surface of device to the ellipsoid another focus；Or, cambered surface reflection unit 760 is hemispherical or hemispheric one
Point, and Wavelength converter 530 entrance positions be disposed in proximity to the spherical centre of sphere a bit so that Wavelength converter 530
Most of light of outgoing through cambered surface reflection unit reflective surface to this on the symmetrical another point of the centre of sphere, in order to enter
Row light is collected.
Embodiment six
Refer to the side view that Fig. 6 a and Fig. 6 b, Fig. 6 a is another embodiment of light-source system in the embodiment of the present invention；Figure
6b is the schematic diagram at the back side of the light-emitting area of LED array in Fig. 6 a illustrated embodiments.As shown in Figure 6 a, the hair of light-source system 600
Electro-optical device includes LED array 610, LASER Light Source 620, Wavelength converter 630, drive device 640, collimation lens 650 and light
Road discriminating device 670.LED array 610 includes substrate 611, multiple LED chips 612, multiple collimation lenses 613 and light hole
614。
The present embodiment includes with the difference part of embodiment illustrated in fig. 4：
(1) light-emitting device also includes collimation lens 680, speculum 690, and collimation lens 680 is used to LASER Light Source 620
The laser penetrated is collimated to speculum 690, and the reflected mirror 690 of the laser reflexes to light path discriminating device 670.
(2) light-source system 600 includes three color optical channels, and one of color optical channel includes above-mentioned light-emitting device.
Another two color optical channel includes the light source for producing second, third light different from the first light respectively, and the light source can
It is specific in the present embodiment to produce the luminescent device of Stimulated Light including LED, LD or using LED or LD excitation wavelengths transition material
It is red LED array 6110 and blue LED arrays 6120.Light-source system also includes being in criss-cross wavelength optics, the ripple
Optics long specifically include two dichroic pieces 6130 and 6140, and the wavelength optics are used for logical from each color of light
Each beam light in road is combined into a branch of closing light in the way of wavelength closing light.
(3) light-source system 600 also includes fly's-eye lens 6150 and condenser lens 6160, and fly's-eye lens 6150 is used for wavelength
The emergent light of optics carries out shaping and Homogenization Treatments, and condenser lens 6160 is used to enter the emergent light of fly's-eye lens 6150
Row is collected and focused on.
For ease of understanding the present embodiment, the operation principle of the present embodiment light-source system is exemplified below：
For concrete example, LED array 610 produces green glow, LASER Light Source 620 to produce blue light, the blue light to be distinguished through light path
Device 670 reflects and converges to Wavelength converter through lens 650.Wavelength converter 630 is included for absorbing blue light and producing
The yellow fluorescent powder and optical filter of raw gold-tinted, the gold-tinted of outgoing is filtered into green by the optical filter after yellow fluorescent powder absorption blue light
Light, therefore Wavelength converter outgoing green glow and unabsorbed blue light.Green glow in the emergent light of Wavelength converter 630 is saturating
Penetrate light path discriminating device 670 and through light hole 614, be a branch of green glow with the green glow geometry closing light that LED array 610 is produced, make
The emergent light of the color optical channel where light-emitting device.Two other color optical channel distinguishes outgoing feux rouges and blue light, by two
The wavelength optics constituted to color chips 6130 and 6140 distinguish three passages feux rouges, green glow and the blue light wavelength closing lights of outgoing
It is beam of white light, after the white light is through the shaping of fly's-eye lens 6150 and Homogenization Treatments, then is converged to a bit by condenser lens 6160.
Light-source system can also include color optical channel more than two or four.It is easily understood that above-mentioned luminous dress
Putting can also be applied in two or more color optical channel, such as in the color optical channel where red LED array 6110
A light-emitting device can be added, the light-emitting device can be using laser excitation wavelength conversion equipment with outgoing feux rouges.
Moreover it is preferred that as shown in Figure 6 b, heat is provided with outside the light hole 614 at the back side of the light-emitting area of LED array 610
Pipe 6100, for radiating fin is set, this structure can reduce the length of light-source system, and be conducive to leaving wavelength for
The enough spaces of conversion equipment 630.
There are the following problems for Fig. 6 a illustrated embodiments, if the ejecting white light of Wavelength converter 630, the red and indigo plant of the white light
Color part will be filtered out by wavelength optics and cannot function as the emergent light of light-source system.Therefore, the present invention is provided shown in Fig. 7
Embodiment.
Embodiment seven
Fig. 7 is referred to, Fig. 7 is the side view of another embodiment of light-source system in the embodiment of the present invention.As shown in fig. 7,
Light-source system 700 includes three color optical channels, and a light-emitting device for color optical channel includes LED array 710, LASER Light Source
720th, Wavelength converter 730, drive device 740, collimation lens 750 and 780, speculum 790a and 790b；Another two color
Optical channel includes LED array 7110 and 7120 respectively.Light-source system also includes fly's-eye lens 7150 and condenser lens 7160.For just
In description, the color optical channel where light-emitting device is referred to as the first color optical channel below, where LED array 7110 and 7120
Color optical channel be referred to as second, third color optical channel.
The present embodiment includes with the difference part of Fig. 6 a illustrated embodiments：
(1) Wavelength converter uses transmission-type, the laser that LASER Light Source 720 is produced reflected mirror 790a and 790b successively
Wavelength converter 730 is reflexed to, the collimated lens 750 of emergent light of Wavelength converter pass through LED array 710 after collimating
Light hole.
(2) light-source system 700 includes being in criss-cross light-integrating subassembly, and the light-integrating subassembly includes guide portion at its center
7140 instead of the wavelength splicer in Fig. 6 a with the wavelength closing light portion 7130 being located at outside guide portion 7140, the light-integrating subassembly
Part.Wavelength closing light portion 7130 is used for emergent light and second, third color optical channel to the LED array 710 in light-emitting device
Part emergent light merges into first via light in the way of wavelength closing light；Guide portion 7140 is used for the wavelength convert in light-emitting device
The emergent light of device 730 merges into the emergent light of light-source system with first via light in the way of geometry closing light, and hinder second, the
The remaining emergent light outgoing of three color optical channels is the emergent light of light-source system.
Specifically, in the present embodiment, light-integrating subassembly includes the dichroic piece with light hole 7140, and the dichroic piece includes should
The guide portion of light hole 7140 and the filter area outside the light hole 7130, i.e. light-integrating subassembly is the light hole, and wavelength is closed
Light portion is the filter area.
For ease of understanding the present embodiment, the operation principle of the present embodiment light-source system is exemplified below：
For concrete example, LED array 710 produces green glow, LASER Light Source 720 to produce blue light, Wavelength converter 730 to wrap
Include for absorbing blue light and producing the yellow fluorescent powder of gold-tinted, Wavelength converter outgoing is by gold-tinted and unabsorbed blue light group
Into white light, the white light through LED array 710 light hole.The green glow of the outgoing of LED array 710, LED array 7110 and 7120
The feux rouges of outgoing and most of light of blue light are first via white light through the wavelength closing light of filter area 7130 of light-integrating subassembly respectively.Wavelength
After the white light of the outgoing of conversion equipment 730 passes through the light hole of LED array 710, through the light hole 7140 of light-integrating subassembly, with first
Road white light merges into the emergent light of light-source system in the way of geometry closing light.LED array 7110 and 7120 distinguishes the feux rouges of outgoing
And the fraction light of blue light is leaked through the light hole 7140 of light-integrating subassembly and is unable to the emergent light that outgoing is light-source system.
Relative to Fig. 6 a illustrated embodiments, the present embodiment makes the white light of Wavelength converter outgoing can be with by light-integrating subassembly
Outgoing is the emergent light of light-source system, is filtered without having part light, therefore with higher excellent of the bigger brightness of luminous flux
Point.
In other embodiments, light-integrating subassembly can also include the dichroic piece with reflection unit, and the dichroic piece includes
The guide portion of the reflection unit and the filter area outside the reflection unit, i.e. light-integrating subassembly is the reflection unit, and wavelength is closed
Light portion is the filter area.This is the alternative embodiment of the embodiment illustrated in fig. 7 that those skilled in the art can realize, is not made herein
Describe in detail.
It is noted that guide portion 7140 not necessarily hinders the remaining emergent light of second, third color optical channel to go out
The emergent light for light-source system is penetrated, for example, when guide portion 7140 is polarizer, can be by the emergent light of Wavelength converter and the
2nd, the remaining emergent light of the 3rd color optical channel is set to polarised light, and now guide portion 7140 can be with guide wavelength conversion equipment
The remaining emergent light of emergent light and second, third color optical channel to polarize closing light in the way of merge into the second road light, this second
Lu Guangyu first via light merges into the emergent light of light-source system in the way of geometry closing light.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The embodiment of the present invention also provides a kind of optical projection system, including light-source system, and the light-source system can have above-mentioned each
Structure and function in embodiment.The optical projection system can use various shadow casting techniques, such as liquid crystal display (LCD, Liquid
Crystal Display) shadow casting technique, digital light processor (DLP, Digital Light Processor) shadow casting technique.
Additionally, above-mentioned light-source system can also be applied to illuminator, such as stage lighting illumination.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (8)
1. a kind of light-source system, it is characterised in that including light-emitting device, the light-emitting device includes：
LED array, for producing the first light；
LASER Light Source, for producing laser；
Wavelength converter, including for absorbing the laser to produce the wavelength conversion layer of Stimulated Light, the Wavelength converter
At least part of light of Stimulated Light described in outgoing, or at least part of light and the unabsorbed laser of the Stimulated Light at least portion
The mixed light of light splitting；
Also, the first light is combined into a branch of closing light with the emergent light of the Wavelength converter in the way of geometry closing light；
The light-source system also includes three color optical channels and wavelength optics；The second face in three color optical channels
Coloured light passage includes the light source for producing the second light, and the first color optical channel includes the light-emitting device, the 3rd color of light
By including the light source for producing the 3rd light；
The wavelength optics include wavelength closing light portion and guide portion, and the wavelength closing light portion is used for first light, the
The light of part second of second colors optical channel and the light of part the 3rd of the 3rd color optical channel are merged in the way of wavelength closing light
It is first via light；The guide portion is used for the emergent light of the Wavelength converter with the first via light with the side of geometry closing light
Formula merges into the emergent light of light-source system.
2. light-source system according to claim 1, it is characterised in that the light-source system also includes：Drive device, for driving
The Wavelength converter is moved, so that the hot spot that the laser is formed on the wavelength conversion layer acts on this along predefined paths
Wavelength conversion layer.
3. light-source system according to claim 1, it is characterised in that：The emergent light of the Wavelength converter, described
The light of remainder the 3rd of the light of remainder second of second colors optical channel and the 3rd color optical channel is polarised light,
The guide portion is polarizer, for the remainder of emergent light and the second color optical channel of guide wavelength conversion equipment
The light of remainder the 3rd of the second light and the 3rd color optical channel to polarize closing light in the way of merge into the second road light,
The second road light merges into the emergent light of light-source system with first via light in the way of geometry closing light.
4. light-source system according to claim 3, it is characterised in that：Second light is feux rouges, the 3rd light
It is blue light, first light is green glow.
5. light-source system according to any one of claim 1 to 4, it is characterised in that：The light-emitting device also includes control
Device processed, open and close and/or luminous intensity for controlling the LASER Light Source.
6. light-source system according to any one of claim 1 to 4, it is characterised in that：The laser is blue light or ultraviolet
Light, at least part of region positioned at wavelength more than 460nm of spectrum of the Stimulated Light.
7. light-source system according to claim 6, it is characterised in that：The laser is blue light, and the Stimulated Light is gold-tinted
Or green glow.
8. a kind of optical projection system, it is characterised in that including the light-source system as any one of claim 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510251472.9A CN104865783B (en) | 2012-04-24 | 2012-04-24 | Light source system and related projection system |
Applications Claiming Priority (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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| CN201210123211.5A Division CN102662301B (en) | 2012-03-11 | 2012-04-24 | Light source system and related projection system |
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| CN104865783B true CN104865783B (en) | 2017-05-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106154719B (en) * | 2016-07-10 | 2017-10-10 | 中山市捷信科技服务有限公司 | A kind of projector with multiple lamp light source |
| CN106385739B (en) * | 2016-10-09 | 2018-08-21 | 超视界激光科技（苏州）有限公司 | Laser light source module and light-source system |
| 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 |
| WO2020024595A1 (en) * | 2018-08-01 | 2020-02-06 | 深圳市绎立锐光科技开发有限公司 | Light source device and headlight system |
| CN111629188A (en) | 2019-02-27 | 2020-09-04 | 中强光电股份有限公司 | Light source module and projector |
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| CN101329038A (en) * | 2007-06-20 | 2008-12-24 | 台达电子工业股份有限公司 | Light source system and display apparatus using the same |
| CN101937166A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | The light supply apparatus and the projector of laser have been used in the light source |
| CN102231042A (en) * | 2011-06-22 | 2011-11-02 | 贺银波 | Light engine system for reflective liquid crystal projection display |
| CN102375314A (en) * | 2010-08-09 | 2012-03-14 | 台达电子工业股份有限公司 | Illumination system and projector using the same |
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| JP5428078B2 (en) * | 2009-12-21 | 2014-02-26 | カシオ計算機株式会社 | Light source device and projector |
| JP2012008549A (en) * | 2010-05-27 | 2012-01-12 | Panasonic Corp | Light source device and illuminating device using the same, and image display device |
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| CN101329038A (en) * | 2007-06-20 | 2008-12-24 | 台达电子工业股份有限公司 | Light source system and display apparatus using the same |
| CN101937166A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | The light supply apparatus and the projector of laser have been used in the light source |
| CN102375314A (en) * | 2010-08-09 | 2012-03-14 | 台达电子工业股份有限公司 | Illumination system and projector using the same |
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