CN108107658B - 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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- CN108107658B CN108107658B CN201611060715.1A CN201611060715A CN108107658B CN 108107658 B CN108107658 B CN 108107658B CN 201611060715 A CN201611060715 A CN 201611060715A CN 108107658 B CN108107658 B CN 108107658B
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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
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
Abstract
It includes solid state light emitter that the present invention, which discloses a kind of light-source system, optical projection system and lighting device, light-source system, at least emits the first exciting light；First wave length conversion equipment, including first surface receive the first exciting light, are converted into the first stimulated light and reflect；First light collecting system, the first exciting light of convergence to first surface, and guide the first stimulated light to the light exit path of light-source system；In first light collecting system close to the side of the first wave length conversion equipment, the focus of the wavelength of corresponding first exciting light of first light collecting system is the first focus, the focus of the wavelength of corresponding first stimulated light is the second focus, first focus and the second focus line midpoint are the first normal place, and the first surface of first wave length conversion equipment, which is set to, deviates 30% position of the distance of first normal place no more than the first normal place and the first light collecting system spacing.A kind of light-source system that easy for installation and light consistency is good can be obtained in technical solution of the present invention.
Description
Technical field
The present invention relates to light sources technical field, in particular to a kind of light-source system, using the projection system of the light-source system
System, and the lighting device of the application light-source system.
Background technique
As the continuous development of optical technology updates, the brightness of the light issued to light source and consistency have higher and higher
Requirement.Light source in the light-source system of conventional projectors mainly uses halogen lamp and high-pressure sodium lamp, this light source service life
It is short, luminous efficiency is low, calorific value is big, and color developing effect is poor, is gradually eliminated.
Currently, the monochromaticjty due to laser is especially good, it is also more and more to open to the projector that color has high-quality to require
Beginning uses semiconductor laser as light source (such as blue laser, ultraviolet 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 arranged completely in accordance with stringent optical position, so that Wavelength converter
It must be mounted to a certain specific position, needed thus by repeatedly debugging calibration, so that complex installation process is bothersome.
Summary of the invention
The main purpose of the present invention is to provide a kind of light-source systems, 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, is converted into the first stimulated light, and first stimulated light is reflected；First light collecting system, if
It is placed in the optical path between the solid state light emitter and the first wave length conversion equipment, converges first exciting light to described the
The first surface of one Wavelength converter, and guide the light to the light-source system to go out rays after first stimulated light is collected
Diameter；In first light collecting system close to the side of the first wave length conversion equipment, first light collecting system is corresponding
The focus of the wavelength of first exciting light is the first focus, and first light collecting system corresponds to the wave of first stimulated light
Long focus is the second focus, and the middle 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 set to 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 optical 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 is to form first exciting light, and part reflection is to form the second exciting light；Scattering is anti-
Injection device receives the second exciting light for reflecting through light-dividing device, and second exciting light is converted to different the of light distribution
Two light, and the second light is reflected back into light-dividing device.
It optionally, further include light-dividing device, in the optical 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, partially reflects to form the second exciting light；Second
Wavelength converter, including second surface, the second surface receive the second exciting light, generate second by the second excitation
Stimulated light, and second stimulated light is reflected；And second light collecting system, be located at the second wave length conversion equipment with it is described
In optical path between light-dividing device, the second surface of second exciting light to the second wave length conversion equipment is converged, and will
Guidance to the light-dividing device, the second light collecting system of Yu Suoshu turns close to the second wave length after first stimulated light is collected
The side of changing device, the focus that second light collecting system corresponds to the wavelength of second exciting light is third focus, described
The focus that second light collecting system corresponds to the wavelength of second stimulated light is the 4th focus, third focus and the 4th focus line
Middle position be 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 set to first focus and second focus
Between.
Optionally, the shortest distance 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.
It optionally, further include light shaping device, the light shaping device is between the solid state light emitter and light-dividing device
Optical path on, compression lens devices and glass dodging device are successively placed with 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 issues, 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 shell, the light-source system
It is installed in the shell, 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 transmits 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 middle position for the focus line that the focus and the first stimulated light of collection system convergence are converged 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 these two types of position installations 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.In turn, when carrying out installing fixed first wave length conversion equipment, wider range can selects
It selects, so that it is quick and easy for installation, improve efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical 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
The structure shown 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 is the relational graph of the installation site of Wavelength converter and the luminous flux of stimulated light；
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 structural schematic 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
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.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 specifically defined or limited otherwise, term " riveting " " connection ", " fixation " etc. should do broad sense
Understand, for example, " fixation " may be a fixed connection, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
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.
It 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
Based on logical technical staff can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this
The combination of technical solution is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of light-source system 100.
Fig. 1 is please referred 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 first stimulated light is reflected；First light collecting system
50, it is set in the optical path between solid state light emitter 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 guide after the first stimulated light is collected to the light exit path of light-source system 100, in first
Light collecting system 50 is close to the side of first wave length conversion equipment 40, the wavelength of corresponding first exciting light of the first light collecting system 50
Focus be the first focus, the focus of the wavelength of corresponding first stimulated light of the first light collecting system 50 is the second focus, and first is burnt
The middle 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 arranged
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 arranged perpendicular to the key light axis direction of the first exciting light, first surface can also be with first
The key light axis direction 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, be also possible to 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 comprising a wave
Long conversion layer (not shown) and a reflecting layer (not shown), wherein reflecting layer is set to first wave length conversion equipment 40 away from solid-state light
The 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 by reflecting layer with stimulated light.In one embodiment, wavelength conversion material includes glimmering
Light powder, phosphor material and quantum dot light emitting material, wavelength conversion material are also possible to fluorescence ceramics.It is appreciated that of the invention
In other embodiments, wavelength conversion layer and reflecting layer may be a composite layer 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 converging the first exciting light
To the first surface of first wave length conversion equipment 40, so that the light beam for being incident on first wave length conversion equipment 40 is biggish from one
Beam cross section is converted to a small light spot, and the stimulated light issued 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 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 solid state light emitter 10 and the first light
In optical path between collection system 50, the exciting light fractional transmission for emitting solid state light emitter 10 to form the first exciting light,
Part reflection is to form the second exciting light.
Light-source system 100 further includes scattered reflection device 30, in the optical path of the second exciting light, is received through light-dividing device
Second exciting light of 20 reflections, is converted to the second different light of light distribution for the second exciting light, and the second light is reflected back into
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
Later, 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 carrying out eliminating coherence to the second exciting light so that the light of outgoing is not likely to produce
Speckle.Scattered reflection device 30 includes a scattering material layer, which can be by particle size and the second excitation
The composition of scattering particles similar in optical wavelength, is scattered reflex 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 is reflected back into 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, blue light required for white light is less relative to 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%, the white light color being finally emitted can be made 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 transmit again for one or more transparent panels, reflected excitation light and 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 --- when incident light beam strikes are to transparent plate surface while occurring to reflect and reflect,
Wherein refraction light further forms the first exciting light transmitted through transparent panel, and reflected light forms the second exciting light.With transparent panel number
The ratio of the increase of amount, the light of reflective portion is gradually increased.Optionally, light-dividing device 20 includes two or more walls
The transparent glass sheet (not shown) of folded setting.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 zones difference transmission of light-dividing device 20.The transparent glass that light-dividing device 20 is arranged
Glass piece is two or more, and as the quantity of transparent glass sheet increases, the function superposition that part can be made to reflect 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 when another transparent glass sheet incidence, it can use the boundary between transparent glass sheet two-by-two
Face refractive index is different, so that 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
When 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 backwards to first wave length conversion equipment 40 of a transparent glass sheet farthest from first wave length conversion equipment 40.The implementation
In example, the transmission performance of light, the ratio of adjustable first exciting light and the second exciting light, so that finally is can be improved in anti-reflection film
The stimulated light of outgoing and the second light have suitable ratio, thus the white balance of the white light of control.Certainly, it is not provided with the anti-reflection film,
Light-dividing device 20 can also carry out the Transflective of light.
In yet another embodiment of the present invention, the not instead of transparent panel of light-dividing device 20, different points of region characteristic
Mating plate, the light splitting piece include at least first area and second area, and wherein first area and second area send out solid state light emitter 10
The Transflective characteristic of exciting light 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 first wave length conversion equipment 40 etc..
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 optical path between light-dividing device 20, compression lens devices 61 and glass dodging device are successively placed with along the optical path direction
63。
In the present embodiment, light shaping device 60 is for modifying 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
Optical path on, compression lens devices 61 and glass dodging device 63 are successively placed with along the optical path direction.Compress lens devices
61 further include having 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 carries out compression reduction, then passes through glass dodging device
63 make the exciting light for being incident to light-dividing device 20 more uniform.It is small, bright by the way that the angle of divergence can be obtained after light shaping device 60
Spend circular light spot uniform and of high brightness.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 transmit the first stimulated light, and 40 installation site of first wave length conversion equipment is arranged substantially in normal bit
It sets, either the first exciting light (i.e. blue light wavelength) is in the corresponding focus of light collecting system 50 and the first stimulated light (i.e. yellow light
Wavelength) in the middle position of the corresponding focus line of light collecting system 50, i.e. normal place, it can also be installed on and close on normal bit
The position set, 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 these two types of position installations does not influence the luminous flux of the emergent light of final light-source system 100, 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.
In turn, when carrying out installing fixed first wave length conversion equipment 40, wider range can selects, so that easy for installation
Fast, efficiency is improved.
The principle of the present invention further progress is illustrated below.
Incorporated by reference to Fig. 1 and Fig. 2, it is because the light for the light being finally emitted is logical 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 turns without wavelength
It changes, heat production itself is few, it can be by the way of being fixedly mounted, and also the functional parts of scattered reflection device 30 are easily worked,
The consistency of itself is good, therefore its reflection efficiency, collection efficiency, ray machine efficiency can guarantee consistency, i.e. LBConsistency
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
The consistency of product is necessarily not so good as scattered reflection device 30, and the thickness of the wavelength conversion layer of different light-source systems is inconsistent, leads to
The practical position for receiving light of one Wavelength converter 40 is inconsistent；And first wave length conversion equipment 40 is usually filled in a driving
Relative to lamp motion under the driving set, whether vibration and optical axis in motion process can be with first wave length conversion equipments 40
Surface vertically determines that the consistency of the position of the practical 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 consistency, installation site consistency 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.Relatively closely from the first light collecting system 50 due to first wave length conversion equipment 40b, first wave
The light that long conversion equipment 40b is issued 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 set, 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 optical path (the fly's-eye lens position of such as ray machine) will be unable to be incorporated into emitting light path, cause yellow light to utilize
Rate decline, so as to cause ray machine efficiency etaYReduction.Comprehensively 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, the first wave length conversion equipment 40c in as 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 relative to 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 set, to become smaller, so that utilization rate of the yellow light in subsequent optical path improves, leads to ray machine efficiency etaYRaising.Comprehensively 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 relative to large spot, more easily (i.e. hot spot becomes smaller can further increase receipts to small light spot for collection
Collect efficiency δY), obtain 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 position more farther than the second focus, because not only light collection efficiency declines for the position, but also the angle of divergence increases, under 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 and the first light are collected
The shortest distance between system 50 is d (i.e. raised points of the condenser lens towards first wave length conversion equipment 40 and the first normal place
The distance between), the distance that first wave length conversion equipment 40 deviates the first normal place is less than or equal to 0.3d (can collect to light
The direction of system 50 is deviateed, and can also be deviateed away from the direction of light collecting system 50) namely the setting of first wave length conversion equipment 40
It is not more than 30% position of the first normal place and 50 spacing of the first light collecting system in the distance 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 set 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 of the light-source system 100 can be made 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, first wave length conversion equipment 40 and the first light collecting system 50
Between the shortest distance be d, s1 is that first wave length conversion equipment 40 to 50 direction of the first light collecting system deviates from the first standard
The distance of position, s2, which is 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 location being accurately set to 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 horizontal 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 setting is negative, collects system away from the first light
Deviate setting and be positive in the direction of system 50), the luminous flux being finally emitted could be made to remain unchanged, Huang can be made more than this range
The luminous flux of light greatly reduces, to cannot reach requirement.Obtained 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, deviates 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 may not necessarily be also set with suit
Set, only retain relevant to first wave length conversion equipment optical device, under the technical solution light-source system for be emitted monochrome by
Laser.According to the above discussion, even if being not provided with scattered reflection device, the design of the luminous flux of individual yellow light emergent light in this case
High consistency can also be kept under thought.
Referring to figure 4., in other embodiment, light-source system 100 further includes light-dividing device 20, is located at solid state light emitter 10
In optical 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 partially reflects to form the second exciting light；Light-source system 100 further includes second wave length conversion equipment 70, including the
Two surfaces, second surface receive the second exciting light, generate the second stimulated light by the second excitation, and the second stimulated light is anti-
It penetrates；And the second light collecting system 50a, in the optical 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 guidance to light-dividing device 20,
In the second light collecting system 50a close to the side of second wave length conversion equipment 70, corresponding second excitation of the second light collecting system 50a
The focus of the wavelength of light is third focus, and the focus of the wavelength of corresponding second stimulated light of the second light collecting system 50a is the 4th burnt
The middle position of point, third focus and the 4th focus line is 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 setting position of second wave length conversion equipment 70 is referred to first wave length in above-described embodiment and turns
The setting position of changing device 40.I.e. second wave length conversion equipment 70 is set to 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 set to
Between third focus and the 4th focus.
Similarly, based on above-mentioned identical reason, the position of second wave length conversion equipment 70 is arranged but also light-source system
The luminous flux of 100 emergent light has high consistency.
In the present embodiment, solid state light emitter 10 is emitted ultraviolet laser, and first wave length conversion equipment 40 is yellow wavelengths conversion
Device, second wave length conversion equipment 70 are blue wavelength conversion equipment.It is appreciated that in other embodiments, solid state light emitter
10, 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.
Referring to figure 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, does not reflect it.Use the second solid state light emitter 90
Instead of second wave length conversion equipment 70 or scattered reflection device 30, emit third light using the second solid state light emitter 90, third light by
After light-dividing device 20 transmits, light combination injection is carried out with the first stimulated light.In the present embodiment, third light is being divided with the first stimulated light
Light combination at device 20, it will be understood that in other variant embodiments, third light can also be in other positions and the first stimulated light
Light combination.
Fig. 6 is please referred 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 issues, 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 uses above-mentioned light emitting device, as low as Domestic micro projection, parlor projection is thrown to engineering projection, movie theatre greatly
Shadow can be competent at.Since the light-source system of optical projection system uses whole technical solutions of above-mentioned all embodiments, until
All beneficial effects brought 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 shell are (not
Diagram), light-source system 100 is installed in shell, 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, also can be applied to display system
On system, such as projector, television set.Since the light-source system of lighting device uses whole technical sides of above-mentioned all embodiments
Case, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, this is no longer going to repeat them.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of light-source system, comprising:
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 receive the first exciting light, be converted into first by
Laser, and first stimulated light is reflected；
First light collecting system is set in the optical path between the solid state light emitter 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 side of the first wave length conversion equipment, first light collecting system is corresponding
The focus of the wavelength of first exciting light is the first focus, and first light collecting system corresponds to the wave of first stimulated light
Long focus is the second focus, and the middle 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 set to 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 optical path between solid state light emitter and the first light collecting system, and the solid state light emitter is emitted
Exciting light fractional transmission is to form first exciting light, and part reflection is to form the second exciting light；
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 is reflected back into light-dividing device.
3. light-source system as described in claim 1, which is characterized in that further include:
Light-dividing device, in the optical path between solid state light emitter and the first light collecting system, and the solid state light emitter is emitted
Exciting light fractional transmission is to form first exciting light, and part reflection is to form the second exciting light；
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 second stimulated light is reflected；
And second light collecting system, in the optical 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 side of the second wave length conversion equipment, second light collecting system is corresponding
The focus of the wavelength of second exciting light is third focus, and second light collecting system corresponds to the wave of second stimulated light
Long focus is the 4th focus, and the middle position of third focus and the 4th focus line is the second normal place, second wave
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 arranged
Between first focus and second focus.
5. light-source system as described in claim 1, which is characterized in that first normal place and first light are collected and is
The shortest distance 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 is 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 it further include light shaping device, the light shaping device
In optical 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 issues, 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 shell, which is characterized in that the light-source system is installed in the shell,
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 CN108107658A (en) | 2018-06-01 |
| CN108107658B true CN108107658B (en) | 2019-10-25 |
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| WO (1) | WO2018095019A1 (en) |
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|---|---|---|---|---|
| CN110632814A (en) | 2018-06-25 | 2019-12-31 | 中强光电股份有限公司 | Illumination system and projection apparatus |
| CN111338161B (en) * | 2018-12-18 | 2022-04-12 | 深圳光峰科技股份有限公司 | Projection device |
| CN110297384B (en) * | 2019-07-25 | 2022-06-07 | 福建省锐驰物联网股份有限公司 | Light source for projection |
| CN112631054B (en) * | 2020-11-23 | 2022-03-15 | 无锡视美乐激光显示科技有限公司 | Laser light source structure, projection optical system and color temperature adjusting method thereof |
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| WO2018095019A1 (en) | 2018-05-31 |
| CN108107658A (en) | 2018-06-01 |
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Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Applicant after: APPOTRONICS Corp.,Ltd. Address before: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Applicant before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address after: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor. Applicant after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518055 Shenzhen, Shenzhen, Guangdong 1089 Nanshan District road 1089, Shenzhen integrated circuit design application Industrial Park, 4 floor. Applicant before: APPOTRONICS Corp.,Ltd. |
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