CN108107658A - Light-source system, optical projection system and lighting device - Google Patents
Light-source system, optical projection system and lighting device Download PDFInfo
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- CN108107658A CN108107658A CN201611060715.1A CN201611060715A CN108107658A CN 108107658 A CN108107658 A CN 108107658A CN 201611060715 A CN201611060715 A CN 201611060715A CN 108107658 A CN108107658 A CN 108107658A
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- light
- exciting
- conversion equipment
- focus
- wave length
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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
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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
-
- 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
Abstract
The present invention discloses a kind of light-source system, optical projection system and lighting device, and light-source system includes solid state light emitter, at least emits the first exciting light；First wave length conversion equipment including first surface, receives the first exciting light, is converted into the first stimulated light and reflects；First light collecting system, the first exciting light of convergence to first surface, and the first stimulated light is guided to the light exit path of light-source system；In first light collecting system close to the one side of the first wave length conversion equipment, the focus that first light collecting system corresponds to the wavelength of the first exciting light is the first focus, the focus of the wavelength of corresponding first stimulated light is the second focus, first focus is the first normal place with the second focus line midpoint, and the first surface of first wave length conversion equipment, which is arranged at, deviates 30% position of the distance of first normal place no more than the first normal place and the first light collecting system spacing.Technical solution of the present invention can obtain the good light-source system of a kind of easy for installation and light consistency.
Description
Technical field
The present invention relates to light sources technical field, more particularly to a kind of light-source system, using the projection system of the light-source system
The lighting device of system and the application light-source system.
Background technology
It is updated with the continuous development of optical technology, the brightness of the light sent to light source and uniformity have higher and higher
Requirement.Light source in the light-source system of conventional projectors is mainly using halogen lamp and high-pressure sodium lamp, this light source service life
It is short, luminous efficiency is low, caloric value is big, and color developing effect is poor, is gradually eliminated.
At present, since the monochromaticjty of laser is especially good, there is the projector of high-quality requirement to color, it is also more and more to open
Beginning uses semiconductor laser as light source (such as blue laser, Ultra-Violet Laser), and using laser fluorescence technology to obtain colour
Light (such as utilizes green emitting phosphor, yellow fluorescent powder).This light source life is long, but when installing light-source system, due to optics
It is used to the technology prejudice having in design, optical element must be set completely in accordance with stringent optical position so that Wavelength converter
A certain specific position is must be mounted to, is needed therefore by repeatedly debugging calibration, so that complex installation process is bothersome.
The content of the invention
It is a primary object of the present invention to provide a kind of light-source system, it is intended to obtain a kind of easy for installation, light consistency compared with
Good light-source system.
To achieve the above object, light-source system proposed by the present invention, the solid state light emitter including emitting exciting light, the solid-state
The exciting light of light source transmitting includes at least the first exciting light；First wave length conversion equipment, including first surface, the first surface
The first exciting light is received, the first stimulated light is converted into, and light reflection is excited by described first；First light collecting system, if
It is placed in the light path between the excitation light source and the first wave length conversion equipment, converges first exciting light to described the
The first surface of one Wavelength converter, and after first stimulated light is collected the light to the light-source system is guided to go out rays
Footpath；In first light collecting system close to the one side of the first wave length conversion equipment, first light collecting system corresponds to
The focus of the wavelength of first exciting light is the first focus, and first light collecting system corresponds to the ripple of first stimulated light
Long focus is the second focus, and the centre position of the first focus and the second focus line is the first normal place, the first wave
The first surface of long conversion equipment is arranged at the distance for deviateing first normal place no more than the first normal place and first
30% position of light collecting system spacing.
Optionally, light-dividing device, in the light path between solid state light emitter and the first light collecting system, and by the solid-state
The exciting light fractional transmission of light source transmitting to form first exciting light, reflect to form the second exciting light by part；Scattering is anti-
Injection device receives the second exciting light reflected through light-dividing device, and second exciting light is converted to different the of light distribution
Two light, and the second light reflection is back to light-dividing device.
Optionally, light-dividing device is further included, in the light path between solid state light emitter and the first light collecting system, and by institute
The exciting light fractional transmission for stating solid state light emitter transmitting forms first exciting light, partly reflects to form the second exciting light；Second
Wavelength converter, including second surface, the second surface receives the second exciting light, and second is generated by the second excitation
Stimulated light, and it is excited light reflection by described second；And second light collecting system, positioned at the second wave length conversion equipment with it is described
In light path between light-dividing device, second exciting light is converged to the second surface of the second wave length conversion equipment, and will
Guiding turns to the light-dividing device in second light collecting system close to the second wave length after first stimulated light is collected
The one side of changing device, second light collecting system corresponds to the focus of the wavelength of second exciting light as the 3rd focus, described
Second light collecting system corresponds to the focus of the wavelength of second stimulated light as the 4th focus, the 3rd focus and the 4th focus line
Centre position for the second normal place, the second surface of the second wave length conversion equipment is arranged substantially in second standard
Position.
Optionally, the first surface of the first wave length conversion equipment is arranged at first focus and second focus
Between.
Optionally, the beeline between first normal place and first light collecting system be d, described first
The distance that Wavelength converter deviates first normal place is less than or equal to 0.1d.
Optionally, the ratio that first exciting light accounts for the exciting light of the solid state light emitter transmitting is 75%~85%.
Optionally, the solid state light emitter is blue light source, and the first wave length conversion equipment is yellow fluorescence colour wheel, described
First light collecting system is a condenser lens.
Optionally, light shaping device is further included, the light shaping device is between the solid state light emitter and light-dividing device
Light path on, be placed with compression lens devices and glass dodging device successively along the optical path direction.
Optionally, the light-dividing device includes the transparent glass sheet that two or more intervals are stacked.
Another object of the present invention is to propose a kind of optical projection system, including light-source system, optical-mechanical system, projection lens and
Projection screen, the optical-mechanical system receives the light that the light-source system is sent, and is converted to projected light and passes through projection lens projects
To the projection screen, the light-source system is above-mentioned light-source system.
Another object of the present invention is to propose a kind of lighting device, including light-source system and housing, the light-source system
The housing is installed in, the light-source system is above-mentioned light-source system.
In technical solution of the present invention, first wave length conversion equipment in light-source system receives the by the first light collecting system
One exciting light simultaneously transfers the first stimulated light, and the installation site of the first wave length conversion equipment can be the first exciting light in the first light
The centre position for the focus line that the focus of collection system convergence is converged with the first stimulated light in the first light collecting system, i.e., first
Normal place can also be installed on the position for closing on the first normal place, that is, deviate the distance of the first normal place no more than the
30% position of one normal place and the first light collecting system spacing, and the position installation of this two class does not influence to be finally emitted
The luminous flux of light can keep preferable light consistency, and light collection system must be set in by overcoming the used Wavelength converter having
The technology prejudice of the focus of system.And then when carrying out installing fixed first wave length conversion equipment, there can be wider scope choosing
It selects, so that it is quick and easy for installation, improve efficiency.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Structure according to these attached drawings obtains other attached drawings.
Fig. 1 is the light path schematic diagram of one embodiment of light-source system of the present invention；
Fig. 2 is the location diagram of the light collecting system and Wavelength converter in light-source system shown in Fig. 1；
Fig. 3 be Wavelength converter installation site and stimulated light luminous flux relational graph；
Fig. 4 is the light path schematic diagram of another embodiment of light-source system of the present invention；
Fig. 5 is the light path schematic diagram of the another embodiment of light-source system of the present invention；
Fig. 6 is the structure diagram of one embodiment of optical projection system of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Light-source system | 60 | Light shaping device |
| 10 | Solid state light emitter | 61 | Compress lens devices |
| 20 | Light-dividing device | 611 | Convex lens |
| 30 | Scattered reflection device | 613 | Concavees lens |
| 40 | First wave length conversion equipment | 63 | Glass dodging device |
| 40b | First wave length conversion equipment | 200 | Optical-mechanical system |
| 40c | First wave length conversion equipment | 300 | Projection lens |
| 50 | First light collecting system | 400 | Projection screen |
| 50a | Second light collecting system | 90 | Second solid state light emitter |
| 70 | Second wave length conversion equipment |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, belongs to the scope of protection of the invention.
In addition, in the present invention such as relating to the description of " first ", " second " etc. be only used for description purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the present invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " riveting " " connection ", " fixation " etc. should do broad sense
Understand, for example, " fixation " can be fixedly connected or be detachably connected or integrally；Can be mechanical connection,
It can be electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be the company inside two elements
Logical or two elements interaction relationship, unless otherwise restricted clearly.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Logical technical staff can be implemented as basis, will be understood that when the combination appearance of technical solution is conflicting or can not realize this
The combination of technical solution is not present, also not the present invention claims protection domain within.
The present invention proposes a kind of light-source system 100.
Fig. 1 is refer to, in an embodiment of the present invention, light-source system 100 includes the solid state light emitter 10 of transmitting exciting light, Gu
The exciting light that state light source 10 emits includes at least the first exciting light；First wave length conversion equipment 40, including first surface, the first table
Face receives the first exciting light, is converted into the first stimulated light, and is excited light reflection by described first；First light collecting system
50, it is arranged in the light path between excitation light source 10 and first wave length conversion equipment 40, the first exciting light of convergence to first wave length
The first surface of conversion equipment 40, and guided after the first stimulated light is collected to the light exit path of light-source system 100, in first
Light collecting system 50 corresponds to the wavelength of the first exciting light close to the one side of first wave length conversion equipment 40, the first light collecting system 50
Focus for the first focus, the first light collecting system 50 corresponds to the focus of the wavelength of the first stimulated light as the second focus, and first is burnt
The centre position of point and the second focus line is the first normal place, and the first surface of first wave length conversion equipment 40 is substantially set
In the first normal place.Wavelength converter 40 is installed on normal place；Or Wavelength converter 40 closes on the first normal place
Installation.It is appreciated that first surface can be set perpendicular to the key light direction of principal axis of the first exciting light, first surface can also be with first
The key light direction of principal axis of exciting light is obliquely installed, and (i.e. the first exciting light is in first wave for the position of first surface the first exciting light of reception
Hot spot on long conversion equipment 40) it is generally disposed at the first normal place.
In one embodiment, solid state light emitter 10 can be laser light source or laser diode light source or
The light source of diode laser matrix composition.In another embodiment, solid state light emitter 10 can also be LED source
Or the light source of light emitting diode matrix composition.
In one embodiment, first wave length conversion equipment 40 is a kind of reflective Wavelength converter, including a ripple
Long conversion layer (not shown) and a reflecting layer (not shown), wherein reflecting layer are arranged on first wave length conversion equipment 40 and deviate from solid-state light
The one side in source 10.Wavelength conversion layer absorbs the first exciting light, and is converted into the stimulated light different from the first excitation wavelength,
Unabsorbed first exciting light is reflected with stimulated light by reflecting layer.In one embodiment, wavelength conversion material includes glimmering
Light powder, phosphor material and quantum dot light emitting material, wavelength conversion material can also be fluorescence ceramics.It is appreciated that the present invention
In other embodiment, wavelength conversion layer and reflecting layer or a composite bed or mixed layer, wavelength conversion material and anti-
Penetrate material can in layer mixed distribution.
In one embodiment, solid state light emitter 10 is blue light source, and first wave length conversion equipment 40 is yellow fluorescent powder color
Wheel.First exciting light is blue light, and the first stimulated light is yellow light.
In one embodiment, the first light collecting system 50 can be a condenser lens, for the first exciting light to be converged
To the first surface of first wave length conversion equipment 40 so that it is larger from one to incide into the light beam of first wave length conversion equipment 40
Beam cross section is converted to a small light spot, and the stimulated light sent from the wavelength conversion material of the small light spot irradiation area is easier quilt
First light collecting system 50 obtains less parallel light after collecting, and is applied in subsequent optical-mechanical system.First exciting light is (blue
Light) and the first stimulated light (yellow light) because the frequency of light it is different, it is also different for the refractive index of the first light collecting system 50, the
One light collecting system 50 is that corresponding focal position is also different on condenser lens, and the focal position of yellow light is saturating from focusing on compared with blue light
The position of mirror is farther out.
In addition, as shown in Figure 1, light-source system 100 can also include light-dividing device 20, positioned at 10 and first light of solid state light emitter
In light path between collection system 50, for the exciting light fractional transmission for emitting solid state light emitter 10 to form the first exciting light,
Part is reflected to form the second exciting light.
Light-source system 100 further includes scattered reflection device 30, in the light path of the second exciting light, receives through light-dividing device
Second exciting light of 20 reflections, is converted to the second different light of light distribution by the second exciting light, and the second light reflection is back to
Light-dividing device 20.The second exciting light from light-dividing device 20 is incident to scattered reflection device 30 through the second light collecting device 50a
Afterwards, light distribution is changed by scattered reflection device 30, lambertian distribution is changed by the second exciting light of original Gaussian Profile
Second light so as to improve the uniformity of light, while carries out eliminating coherence so that the light of outgoing is not likely to produce to the second exciting light
Speckle.Scattered reflection device 30 includes a scattering material layer, which can be by particle size and the second excitation
Scattering particles similar in optical wavelength form, and reflex is scattered to the second exciting light.The scattered reflection device 30 is by second
Exciting light is converted to the second light, and the second light reflection is back to light-dividing device 20, is closed by the second light and the first stimulated light hair
Final ejecting white light is formed after light, in practical applications, the required blue light of white light is less compared with yellow light, therefore works as first and swash
When the ratio of the luminous exciting light for accounting for the transmitting of solid state light emitter 10 is 75%~85%, it can cause the white light color being finally emitted more
Add uniformly.It should be noted that " the second exciting light " not necessarily represents the excitation of the beche-de-mer without spike and light, only description side
Just.
In one embodiment, light-dividing device 20 can be one or more transparent panels, and reflected excitation light transmits again to swash
Luminous region can be the same area, and the first exciting light and the second exciting light that exciting light is formed after transmission and reflection
Spectral characteristic do not change, principle is --- incident light beam strikes to reflecting and reflect simultaneously during transparent plate surface,
It wherein reflects light and further forms the first exciting light transmitted through transparent panel, reflected light forms the second exciting light.With transparent panel number
The increase of amount, the ratio of the light of reflective portion gradually step up.Optionally, light-dividing device 20 includes two or more walls
The folded transparent glass sheet (not shown) set.In another embodiment, light-dividing device 20 includes transparent glass sheet, and light beam is every
Reflection and refraction occur on one transparent glass sheet surface, this light-dividing device 20 is not that the difference of wavelength basis characteristic reflect
The selection penetrated, nor realized by the different transmissions of different zones of light-dividing device 20.The transparent glass that light-dividing device 20 is set
Glass piece is two or more, is increased with the quantity of transparent glass sheet, and the function superposition that can reflect part increases anti-
The exciting light penetrated, so as to adjust the first exciting light and the second exciting light ratio.In addition, wall between transparent glass sheet
It is folded, when light beam is from a transparent glass sheet to during another transparent glass sheet incidence, the boundary between transparent glass sheet two-by-two can be utilized
Face refractive index is different, so as to which refraction and reflex occur, substantially increases the spectroscopical effeciency of light-dividing device 20.
In yet another embodiment, to enhance spectrophotometric result, light-dividing device 20 further includes filter coating (not shown), filter coating
Positioned at the surface towards first wave length conversion equipment 40 of a transparent glass sheet nearest apart from first wave length conversion equipment 40,
Filter coating transmits the first exciting light and reflection stimulated light.In the present embodiment, filter coating is used to improve the utilization rate of light, swashs when first
During luminous injection light-dividing device 20, the first exciting light of filter coating transmissive turns more first exciting light incidence first wave length
Changing device 40.Meanwhile when stimulated light directive light-dividing device 20, filter coating can also reflect stimulated light, it is guided to penetrate
To optical-mechanical system 200.
Certainly, In yet another embodiment, light-dividing device 20 can also include anti-reflection film (not shown), anti-reflection film be located at away from
The surface of the first wave length conversion equipment 40 backwards of a transparent glass sheet farthest from first wave length conversion equipment 40.The implementation
In example, anti-reflection film can improve the transmission performance of light, can adjust the ratio of the first exciting light and the second exciting light so that final
The stimulated light of outgoing has suitable ratio with the second light, so as to the white balance of the white light of control.Certainly, the anti-reflection film is not provided with,
Light-dividing device 20 can also carry out the Transflective of light.
In yet another embodiment of the present invention, light-dividing device 20 is not transparent panel, but point that region characteristic is different
Mating plate, the light splitting piece include at least first area and second area, and solid state light emitter 10 is sent out in wherein first area and second area
The Transflective characteristic of the exciting light gone out is different, and transmissive portion forms the first exciting light, and reflective portion forms the second exciting light.
It in above each embodiment, is divided through light-dividing device 20, transmissive portion forms the first exciting light, and reflective portion is formed
Second exciting light.It is appreciated that may be set to be, reflective portion forms the first exciting light, transmissive portion forms the second excitation
Light, while the corresponding position for changing 40 grade of first wave length conversion equipment.
As shown in Figure 1, light-source system 100 further includes light shaping device 60, light shaping device 60 be located at solid state light emitter 10 with
In light path between light-dividing device 20, compression lens devices 61 and glass dodging device are placed with successively along the optical path direction
63。
In the present embodiment, light shaping device 60 is used to modify the exciting light that solid state light emitter 10 emits so that incident
Excitation light utilization efficiency to light-dividing device 20 is high and uniform.Light shaping device 60 is between solid state light emitter 10 and light-dividing device 20
Light path on, be placed with compression lens devices 61 and glass dodging device 63 successively along the optical path direction.Compress lens devices
61 have further included a convex lens 611 and a concavees lens 613, and convex lens 611 can collect the exciting light light beam of transmitting, then
It is collimated by concavees lens 613 so that the cross section of exciting light light beam is compressed reduction, then passes through glass dodging device
63 so that the exciting light for being incident to light-dividing device 20 is more uniform.It is small, bright by the way that the angle of divergence can be obtained after light shaping device 60
The circular light spot that degree is uniform and brightness is high.In one embodiment, glass dodging device 63 can be a diffusion sheet, and the glass is even
Electro-optical device 63 is only changed the light distribution of the light by it, does not change primary optical axis/main direction of propagation of light.
In technical solution of the present invention, the first wave length conversion equipment 40 in light-source system 100 passes through the first light collecting system
50 receive the first exciting light and transfer the first stimulated light, and 40 installation site of first wave length conversion equipment is arranged substantially in normal bit
It puts, either the first exciting light (i.e. blue light wavelength) is in 50 corresponding focus of light collecting system and the first stimulated light (i.e. yellow light
Wavelength) in the centre position of 50 corresponding focus line of light collecting system, i.e. normal place, it can also be installed on and close on normal bit
The position put, that is, the distance for deviateing the first normal place are not more than the 30% of the first normal place and the first light collecting system spacing
Position, and this two class position installation do not influence final light-source system 100 emergent light luminous flux, can keep preferable
Light consistency, the technology prejudice of focal position of light collecting system must be set in by overcoming the used Wavelength converter having.
And then when carrying out installing fixed first wave length conversion equipment 40, there can be wider scope selection, so that easy for installation
Fast, efficiency is improved.
The principle of the present invention is further illustrated below.
Incorporated by reference to Fig. 1 and Fig. 2, it is because the light for the light being finally emitted leads to that light-source system, which can keep preferable light consistency,
Measure LTotal lightIt is the luminous flux L by yellow lightYAnd the luminous flux L of blue lightBComposition, i.e. LTotal light=LY+LB.Wherein, the luminous flux L of yellow lightYIt is
By the collection efficiency δ of yellow lightY, yellow light ray machine efficiency etaYAnd luminous efficiency LYProduct determine, i.e. LY=δYηYLY；Blue light
Luminous flux LBIt is the collection efficiency δ by blue lightB, blue light ray machine efficiency etaBAnd reflection efficiency LBProduct determine, i.e. LB=δB
ηBLB。
Respectively to yellow light and blue light independent analysis, for blue light, since scattered reflection device 30 is without wavelength turn
It changes, heat production itself is few, and the mode of fixed installation may be employed, and the functional parts of scattered reflection device 30 are easily worked,
The uniformity of itself is good, therefore its reflection efficiency, collection efficiency, ray machine efficiency can ensure uniformity, i.e. LBUniformity
It is good.And for yellow light, wavelength conversion layer is generally made by the modes such as being sintered, being bonded, and complex process determines its production
For the uniformity of product necessarily not as good as scattered reflection device 30, the thickness of the wavelength conversion layer of different light-source systems is inconsistent, causes the
The position of the actual reception light of one Wavelength converter 40 is inconsistent；And first wave length conversion equipment 40 is usually in a driving dress
Compared with lamp motion under the driving put, whether vibration and optical axis in motion process can be with first wave length conversion equipments 40
Surface vertically determines that the uniformity of the position of the actual reception light of first wave length conversion equipment 40 is bad.Therefore the present invention passes through
The first surface of first wave length conversion equipment 40 is arranged substantially in the first normal place so that even if first wave length conversion equipment
40 material uniformity, installation site uniformity are bad, also can guarantee the outgoing light consistency of light-source system.
When first wave length conversion equipment 40 is installed on the first normal place and the first focus FBPosition between when, as scheme
First wave length conversion equipment 40b in 1.Due to first wave length conversion equipment 40b from the first light collecting system 50 relatively closely, first wave
The light that long conversion equipment 40b is sent more is collected by the first light collecting system 50 so that the collection of the first light collecting system 50
Efficiency δYBecome larger；Hot spot of first exciting light on first wave length conversion equipment 40b becomes larger simultaneously, makes the luminous efficiency L of yellow lightY
Become larger；Due in FYThe yellow light of position forms directional light after the first light collecting system 50, therefore for first wave length converting means
40b is put, after the first light collecting system 50, light beam slightly dissipates yellow light, the dispersion angle θ of yellow lightYIt also becomes larger, wherein the big angle of divergence
Yellow light in subsequent light path (the fly's-eye lens position of such as ray machine) will be unable to be incorporated into emitting light path, yellow light is caused to utilize
Rate declines, so as to cause ray machine efficiency etaYReduction.Consider collection efficiency δY, luminous efficiency LYWith ray machine efficiency etaY, two increase
One subtracts so that the luminous flux L of yellow lightYIt is held essentially constant so that final LTotal lightIt remains unchanged.
Correspondingly, when first wave length conversion equipment 40 is installed on the first normal place and the second focus FYPosition between
When, it is the first wave length conversion equipment 40c in Fig. 1.Due to first wave length conversion equipment 40c from the first light collecting system 50 compared with
Far so that the collection efficiency δ of the first light collecting system 50YBecome smaller compared with the first normal place；Second exciting light is in first wave
Hot spot on long conversion equipment 40 becomes smaller, and makes the luminous efficiency L of yellow lightYBecome smaller；The dispersion angle θ of yellow lightYAlso relative to the first mark
Level, which is put, to become smaller so that utilization rate of the yellow light in subsequent optical path improves, and causes ray machine efficiency etaYRise.Consider collection
Efficiency δY, luminous efficiency LYWith ray machine efficiency etaY, two increasings that subtract one, due to luminous efficiency LYInfluence it is smaller (while hot spot becomes smaller
Excitation optical density can improve), and compared with large spot, easily (i.e. hot spot becomes smaller can further increase receipts to small light spot for collection
Collect efficiency δY), draw LYIt is basically unchanged so that final LTotal lightIt remains unchanged.Therefore the light-source system 100 of the structure can be kept
Preferable light consistency, and install more convenient.It should be noted that the installation site of first wave length conversion equipment 40 cannot position
In the position more farther than the second focus, because not only light collection efficiency declines for the position, but also under angle of divergence increase, ray machine efficiency
Drop, synthesis cause the luminous flux of yellow light to decline.
Fig. 2 and Fig. 3 are referred to, in an embodiment of the invention, is if the first normal place is collected with the first light
System 50 between beeline for d (i.e. condenser lens towards first wave length conversion equipment 40 raised points and the first normal place
The distance between), the distance that first wave length conversion equipment 40 deviates the first normal place (can be collected less than or equal to 0.3d to light
The direction of system 50 is deviateed, and the direction that can also deviate from light collecting system 50 is deviateed) namely first wave length conversion equipment 40 set
In 30% position of the distance no more than the first normal place and 50 spacing of the first light collecting system for deviateing the first normal place.
In further preferred embodiment, because the first focus and the second focus fall generally into first wave length conversion equipment 40 and deviate the first mark
The distance that level is put is less than or equal in the range of 0.3d, therefore first wave length conversion equipment 40 is mounted on the first focus and the second focus
Between when, the light consistency that can cause the light-source system 100 is more preferable.Further, in another embodiment of the invention
In, the distance that first wave length conversion equipment 40 deviates the first normal place is less than or equal to 0.1d, under the technical solution, the one of light source
Cause property can be further good.
F in Fig. 2YFor the second focus, FBFor the first focus, 40 and first light collecting system 50 of first wave length conversion equipment
Between beeline for d, s1 is that first wave length conversion equipment 40 deviates from the first standard to 50 direction of the first light collecting system
The distance of position, s2 are that first wave length conversion equipment 40 deviates from the first normal place away from 50 direction of the first light collecting system
Distance.By the different position being accurately arranged at first wave length conversion equipment 40 on axis, the luminous flux of yellow light is tested,
Obtain luminous flux-displacement curve of Fig. 3.Wherein transverse axis represents the position that first wave length conversion equipment 40 deviates the first normal place
It moves, the longitudinal axis is the luminous flux of yellow light.First wave length conversion equipment 40, which deviates from the first normal place, also has certain value range (to set
When calibration level is set to 0, the distance deviateed to the direction of the first light collecting system 50 is set as bearing, system is collected away from the first light
The direction of system 50, which is deviateed, to be set as just), the luminous flux being finally emitted could be caused to remain unchanged, can cause Huang more than this scope
The luminous flux of light greatly reduces, so as to reach requirement.Drawn according to experimental data, first wave length conversion equipment 40 to
The distance s1 that the first normal place is deviateed in the direction of first light collecting system 50 is less than or equal to 0.3d, away from the first light collecting system
The distance s2 that the first normal place is deviateed in 50 direction is less than 0.3d, and the luminous flux for the light being finally emitted at this time can keep one
It causes, is in higher numerical value.
In the inventive solutions, light-dividing device, scattered reflection device and correlation can not also must be set with suit
Put, only retain with the relevant optical device of first wave length conversion equipment, under the technical solution light-source system for be emitted it is monochromatic by
Laser.According to the above discussion, even if being not provided with scattered reflection device, the luminous flux of individual yellow light emergent light is in the design of this case
High uniformity can also be kept under thought.
Fig. 4 is refer to, in other embodiment, light-source system 100 further includes light-dividing device 20, positioned at solid state light emitter 10
In light path between the first light collecting system 50, and the exciting light fractional transmission that the solid state light emitter 10 emits formed described
First exciting light partly reflects to form the second exciting light；Light-source system 100 further includes second wave length conversion equipment 70, including
Two surfaces, second surface receive the second exciting light, and the second stimulated light is generated by the second excitation, and the second stimulated light is anti-
It penetrates；And the second light collecting system 50a, in the light path between second wave length conversion equipment 70 and light-dividing device 20, convergence the
Two exciting lights to second wave length conversion equipment 70 second surface, and will the first stimulated light collect after guiding to light-dividing device 20,
In the second light collecting system 50a close to the one side of second wave length conversion equipment 70, the second light collecting system 50a corresponds to the second excitation
The focus of the wavelength of light is the 3rd focus, and it is burnt for the 4th that the second light collecting system 50a corresponds to the focus of the wavelength of the second stimulated light
Point, the centre position of the 3rd focus and the 4th focus line are the second normal place, the second table of second wave length conversion equipment 70
Face is arranged substantially in the second normal place.
In the present embodiment, the installation position of second wave length conversion equipment 70 is referred to first wave length in above-described embodiment and turns
The installation position of changing device 40.I.e. second wave length conversion equipment 70 is arranged at the distance for deviateing the second normal place no more than second
30% position of normal place and the second light collecting system 50a spacing.Further, second wave length conversion equipment 70 is arranged at
Between 3rd focus and the 4th focus.
Similarly, based on it is above-mentioned identical the reasons why, the position of second wave length conversion equipment 70 is set but also light-source system
The luminous flux of 100 emergent light has high uniformity.
In the present embodiment, solid state light emitter 10 is emitted Ultra-Violet Laser, and first wave length conversion equipment 40 is converted for yellow wavelengths
Device, second wave length conversion equipment 70 are blue wavelength conversion equipment.It is appreciated that in other embodiments, solid state light emitter
10th, first wave length conversion equipment 40, second wave length conversion equipment 70 or the device for being emitted other color of light, for example, solid
State light source 10 is emitted blue laser, and first wave length conversion equipment 40 is emitted green stimulated light, and second wave length conversion equipment 70 is emitted
Red exciting light.
Refer to Fig. 5, in another embodiment, compared with embodiment shown in FIG. 1, the present embodiment using two kinds of light sources into
Row transmitting, wherein light-dividing device 20 directly transmits the emergent light of solid state light emitter 10, it is not reflected.Use the second solid state light emitter 90
Instead of second wave length conversion equipment 70 or scattered reflection device 30, emit the 3rd light using the second solid state light emitter 90, the 3rd light by
After light-dividing device 20 transmits, closing light injection is carried out with the first stimulated light.In the present embodiment, the 3rd light is being divided with the first stimulated light
Closing light at device 20, it will be understood that in other variant embodiments, the 3rd light can also be in other positions and the first stimulated light
Closing light.
Fig. 6 is refer to, another object of the present invention is to propose a kind of optical projection system, including light-source system 100, ray machine system
System 200, projection lens 300 and projection screen 400, the optical-mechanical system 200 receive the light that the light-source system 100 is sent, and
It is converted to projected light and the projection screen 400 is projected to by projection lens 300, light-source system 100 is above-mentioned light-source system.
After the optical projection system employs above-mentioned light-emitting device, as low as Domestic micro projection, parlor projection is thrown greatly to engineering projection, movie theatre
Shadow can be competent at.Since the light-source system of optical projection system employs whole technical solutions of above-mentioned all embodiments, until
All advantageous effects caused by technical solution with above-described embodiment less, this is no longer going to repeat them.
Another object of the present invention is to propose a kind of lighting device (not shown), including light-source system 100 and housing (not
Diagram), light-source system 100 is installed in housing, and the light-source system 100 is above-mentioned light-source system.The lighting device can answer
It uses in general illumination, such as various lamps and lanterns --- street lamp, searchlight, stage lighting, headlight for vehicles, display system can also be applied to
On system, such as projector, television set.Since the light-source system of lighting device employs whole technical sides of above-mentioned all embodiments
Case, therefore all advantageous effects at least caused by the technical solution with above-described embodiment, this is no longer going to repeat them.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
The equivalent structure transformation made under the inventive concept of invention using description of the invention and accompanying drawing content or directly/utilization indirectly
It is included in other related technical areas in the scope of patent protection of the present invention.
Claims (10)
1. a kind of light-source system, including：
Emit the solid state light emitter of exciting light, the exciting light of the solid state light emitter transmitting includes at least the first exciting light；
First wave length conversion equipment, including first surface, the first surface receives the first exciting light, be converted into first by
Laser, and it is excited light reflection by described first；
First light collecting system is arranged in the light path between the excitation light source and the first wave length conversion equipment, convergence
First exciting light to the first wave length conversion equipment first surface, and will first stimulated light collect after guide to
The light exit path of the light-source system；
It is characterized in that,
In first light collecting system close to the one side of the first wave length conversion equipment, first light collecting system corresponds to
The focus of the wavelength of first exciting light is the first focus, and first light collecting system corresponds to the ripple of first stimulated light
Long focus is the second focus, and the centre position of the first focus and the second focus line is the first normal place；
The first surface of the first wave length conversion equipment is arranged at the distance for deviateing first normal place no more than first
30% position of normal place and the first light collecting system spacing.
2. light-source system as described in claim 1, which is characterized in that further include：
Light-dividing device, in the light path between solid state light emitter and the first light collecting system, and the solid state light emitter is emitted
Exciting light fractional transmission to form first exciting light, reflect to form the second exciting light by part；
Scattered reflection device receives the second exciting light reflected through light-dividing device, and second exciting light is converted to light intensity point
The second different light of cloth, and the second light reflection is back to light-dividing device.
3. light-source system as described in claim 1, which is characterized in that further include：
Light-dividing device, in the light path between solid state light emitter and the first light collecting system, and the solid state light emitter is emitted
Exciting light fractional transmission to form first exciting light, reflect to form the second exciting light by part；
Second wave length conversion equipment, including second surface, the second surface receives the second exciting light, by the second excitation
The second stimulated light is generated, and light reflection is excited by described second；
And second light collecting system, in the light path between the second wave length conversion equipment and the light-dividing device, convergence
Second exciting light to the second wave length conversion equipment second surface, and will first stimulated light collect after guide to
The light-dividing device,
In second light collecting system close to the one side of the second wave length conversion equipment, second light collecting system corresponds to
The focus of the wavelength of second exciting light is the 3rd focus, and second light collecting system corresponds to the ripple of second stimulated light
Long focus is the 4th focus, and the centre position of the 3rd focus and the 4th focus line is the second normal place, second ripple
The second surface of long conversion equipment is arranged substantially in second normal place.
4. light-source system as described in claim 1, which is characterized in that the first surface of the first wave length conversion equipment is set
Between first focus and second focus.
5. light-source system as described in claim 1, which is characterized in that first normal place is collected with first light is
Beeline between system is d, and the distance that the first wave length conversion equipment deviates first normal place is less than or equal to
0.1d。
6. light-source system as described in claim 1, which is characterized in that first exciting light accounts for the solid state light emitter transmitting
The ratio of exciting light is 75%~85%.
7. light-source system as described in claim 1, which is characterized in that the solid state light emitter be blue light source, the first wave
Long conversion equipment is yellow fluorescence colour wheel, and first light collecting system is a condenser lens.
8. light-source system as claimed in claim 2 or claim 3, which is characterized in that further include light shaping device, the light shaping device
In light path between the solid state light emitter and light-dividing device, along the optical path direction successively be placed with compression lens devices and
Glass dodging device.
9. a kind of optical projection system, which is characterized in that including light-source system, optical-mechanical system, projection lens and projection screen, the light
Machine system receives the light that the light-source system is sent, and is converted to projected light by projection lens projects to the projection screen,
The light-source system is any light-source system of claim 1 to 8.
10. a kind of lighting device, including light-source system and housing, which is characterized in that the light-source system is installed in the housing,
The light-source system is any light-source system of claim 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611060715.1A CN108107658B (en) | 2016-11-25 | 2016-11-25 | Light-source system, optical projection system and lighting device |
| PCT/CN2017/088621 WO2018095019A1 (en) | 2016-11-25 | 2017-06-16 | Light source system, projection system and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611060715.1A CN108107658B (en) | 2016-11-25 | 2016-11-25 | Light-source system, optical projection system and lighting device |
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| CN108107658A true CN108107658A (en) | 2018-06-01 |
| CN108107658B CN108107658B (en) | 2019-10-25 |
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| WO (1) | WO2018095019A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108107658B (en) | 2019-10-25 |
| WO2018095019A1 (en) | 2018-05-31 |
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