CN108361566A - A kind of light supply apparatus - Google Patents
A kind of light supply apparatus Download PDFInfo
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- CN108361566A CN108361566A CN201710061044.9A CN201710061044A CN108361566A CN 108361566 A CN108361566 A CN 108361566A CN 201710061044 A CN201710061044 A CN 201710061044A CN 108361566 A CN108361566 A CN 108361566A
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- light
- light guide
- wavelength conversion
- conversion layer
- supply apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/69—Details of refractors forming part of the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Semiconductor Lasers (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention protects a kind of light supply apparatus, including：Light-emitting component, for sending out exciting light；Light guide is arranged in the light path of exciting light, and at least partly exciting light is propagated along the optical axis of light guide in light guide inner total reflection, and light guide includes at least a light-leaking area, and light-leaking area is arranged in the side of light guide, for guiding at least partly light to be emitted from light guide；Wavelength conversion layer, the optical axis direction along light guide are arranged in light guide or are arranged near the light-leaking area outside light guide, for absorbing at least partly exciting light and being converted into the different stimulated light of wave-length coverage.The light supply apparatus heat dissipation of the present invention is more uniform, is suitable for highlight illumination.
Description
Technical field
The present invention relates to lighting areas, more particularly to a kind of light supply apparatus.
Background technology
In recent years, with the popularization of energy conservation and environmental protection concept, by feat of high-luminous-efficiency and long-life, LED illumination gradually takes
Become the mainstream of lighting area for incandescent lamp, energy-saving lamp.
However, in highlight illumination field, LED will reach outgoing high-luminance light, and plurality of LEDs combination is needed to realize.Now
LED illumination lamp, be substantially using blue-light LED chip cooperation be coated in LED light-emitting surfaces on yellow fluorescent powder so that LED
The yellow light that the blue light of chip outgoing emits after absorbing blue light with yellow fluorescent powder mixes, and realizes ejecting white light.On the one hand, LED core
Piece carries out electro-optic conversion itself and generates heat, and on the other hand, the process that fluorescent powder absorbs blue emission yellow light generates a large amount of heat.
LED chip and fluorescent powder neighbour, the heat accumulation superposition that the two generates so that the temperature rise of luminous position.Due to fluorescent powder
Luminous efficiency is temperature sensitive, and with the rising of temperature, light-emitting phosphor efficiency declines, and has seriously affected shining for LED light source
Efficiency.Therefore, heat dissipation problem, which becomes, restricts LED illumination an important factor for high brightness field is applied.
It has been proposed that can detach LED chip with fluorescent powder, dissipating for LED illumination is solved by way of remote excitation
Heat problem.However, the emergent light of LED is in the light of approximate Lambertian distribution, beam divergence angle is very big, is unfavorable for being coupled in light guide,
Coupling efficiency is very low, it is difficult to which the light for sending out LED chip is efficiently guided to fluorescent powder.
LD (Laser Diode, laser diode) light sources and LED light source are all cold light source, and the luminous power of single LD
Density is far above the optical power density of LED, and beam divergence angle is small, is suitable for remote transmission, is highly suitable for remote excitation illumination
Technology.But since fluorescent powder to be generally placed in the end of remote transmission light guide, under the application scenarios of highlight illumination, heat
Amount concentrates on the fluorescent powder of end, the problem that equally light-emitting phosphor efficiency can be caused low.
Therefore, a kind of light supply apparatus that luminous efficiency is high is urgently developed.
Invention content
The low defect of light source light-emitting efficiency for the above-mentioned prior art, the present invention provide a kind of light source that luminous efficiency is high
Device, including：Light-emitting component, for sending out exciting light；Light guide is arranged in the light path of the exciting light, at least partly described
Exciting light is propagated along the optical axis of the light guide in the light guide inner total reflection, and the light guide includes at least a light-leaking area, institute
It states light-leaking area to be arranged in the side of the light guide, for guiding at least partly light to be emitted from the light guide；Wavelength conversion layer,
Optical axis direction along the light guide is arranged in the light guide or is arranged near the light-leaking area outside the light guide, for inhaling
It receives at least partly exciting light and is converted into the different stimulated light of wave-length coverage.
In one embodiment, the light-emitting component includes laser cell and light shaping unit, the light shaping unit
Exciting light for sending out the laser cell is guided to the light incident surface of the light guide；The laser cell is two pole of laser
Pipe array, the light shaping unit include the first cylindrical lens array, the second cylindrical lens array and convergent lens, and first column is saturating
The axial direction of lens array is axially vertical with second cylindrical lens array.
In one embodiment, first cylindrical lens array includes one-to-one with the diode laser matrix
First cylindrical lens and/or second cylindrical lens array include saturating with one-to-one second column of the diode laser matrix
Mirror.
In one embodiment, the light-leaking area be provided with anti-reflection film or the light-leaking area be provided with it is coarse
Structure.
In one embodiment, the wavelength conversion layer is located at outside the light guide, and the wavelength conversion layer and institute
State the setting of light-leaking area interval.
In one embodiment, the wavelength conversion layer is set to the light-leaking area, the wavelength conversion layer setting
Inside the light guide；Or the wavelength conversion layer is set to the light-leaking area, the wavelength conversion layer is set to described
Outside light guide, and the wavelength conversion layer is connected with the light guide side.
In one embodiment, the wavelength conversion layer is distributed along the optical axis direction of the light guide in segmented.
In one embodiment, the wavelength conversion layer is continuously distributed along the optical axis direction of the light guide.
In one embodiment, the light guide and the wavelength conversion layer are identity element, and the wavelength conversion layer is
Fluorescence ceramics.
In one embodiment, including reflecting surface, it is located at the end of the light guide, and the reflecting surface and the light guide
Optical axis intersection.
In one embodiment, including the second light-emitting component, it is located at the end of the light guide, for sending out the second excitation
Light, second exciting light are incident on from the end of the light guide in the light guide.
Compared with prior art, the present invention includes following advantageous effect：By the way that at least one leakage is arranged in the side of light guide
Light region so that the exciting light that light-emitting component is sent out can in light guide along axis propagation when part leakage outgoing；Along light
The optical axis direction led arranges wavelength conversion layer by the light-leaking area for arranging wavelength conversion layer in light guide or outside light guide,
Wavelength conversion layer be used in combination that exciting light is converted to stimulated light so that the functional material of wavelength conversion layer can be distributed in the face of bigger
In product, avoid excessively concentrate and caused by heat build-up so that the functional material of wavelength conversion layer can have it is higher
Luminous efficiency, improve luminous efficiency and the brightness of light supply apparatus.
Description of the drawings
Fig. 1 is the structural schematic diagram of an embodiment of light supply apparatus of the present invention.
Fig. 2 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Fig. 3 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Fig. 4 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Fig. 5 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Fig. 6 is the structural schematic diagram of an embodiment of the light-emitting component of light supply apparatus of the present invention.
Fig. 7 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Fig. 8 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Fig. 9 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Figure 10 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.
Specific implementation mode
Inventive conception is that fluorescent material is disperseed rather than concentrated setting is in the end of light guide, by exciting light
Continue light extraction in the light path that light guide is propagated so that the heat that fluorescent material is generated by luminescence generated by light was more uniformly distributed is distributed to edge
Each different location in light guide direction, the problem of decline so as to avoid the fluorescent material luminous efficiency that heat concentration is brought, into
And improve the luminous efficiency of light supply apparatus.
The embodiment of the present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is referred to, Fig. 1 is the structural schematic diagram of an embodiment of light supply apparatus of the present invention.Light supply apparatus 10 wraps
Include light-emitting component 110, light guide 120 and wavelength conversion layer 130.
The exciting light that light-emitting component 110 is sent out enters light guide 120 from the light inlet of light guide 120, is all-trans in 120 internal cause of light guide
It penetrates and acts on and constantly reflect propagation.A light-leaking area 1201 is included at least on light guide 120, is located on the side of light guide 120.Enter
The light for being mapped to light-leaking area 1201 is emitted from the side of light guide 120, and emergent light enters the wave being arranged near light-leaking area 1201
On long conversion layer 130, is at least partly absorbed and be converted to the different stimulated light of wave-length coverage.It is acted on through wavelength conversion layer 130,
The stimulated light one obtained after unabsorbed exciting light and light conversion is led to be emitted from wavelength conversion layer 130, forms light supply apparatus
10 emergent light.
In the present invention, light-emitting component is for sending out exciting light.Light guide is arranged in the light path of exciting light, at least partly excites
Light is propagated along the optical axis of light guide in light guide inner total reflection, and light guide includes at least a light-leaking area, and light-leaking area is arranged in light guide
Side, for guide at least partly light be emitted from light guide.
The all parts of light supply apparatus are described in detail one by one below.
<Light-emitting component>
In the present invention, light-emitting component includes laser cell and light shaping unit.Wherein, laser cell can be laser two
Pole pipe or diode laser matrix.The substantially oblong-shaped hot spot of light of laser diode outgoing, this is because laser diode
Light-emitting face be rectangle, emergent light is larger along the light angle of divergence difference of long axis direction and short-axis direction.If two pole of laser
The light that pipe is sent out is directly entered light guide without processing, then will so that light beam is different in long axis and short axle both direction light path, into
And cause light beam uneven.Light shaping unit carries out exciting light before the exciting light sent out for laser cell enters light guide
Shaping makes it enter light guide with approximate circle hot spot.
As shown in fig. 6, the structural schematic diagram of an embodiment for the light-emitting component of the present invention, light-emitting component 110 wraps
Include laser cell 111 and light shaping unit 112, wherein (a) be light-emitting component 110 along the view for being parallel to long axis direction, be (b)
Light-emitting component 110 along the view for being parallel to short-axis direction, (c) be along be parallel to 111 emergent light optical axis direction of laser cell towards
The view of laser cell 111.In present embodiment, the diode laser matrix that laser cell 111 is one 4 × 2, short-axis direction
It is parallel to line direction (direction of i.e. 4 a line), long axis direction is parallel to column direction (directions of i.e. 2 one row).Light shaping list
Member 112 includes the first cylindrical lens array being made of 4 × 2 the first cylindrical lens 1121, including by 4 × 2 the second cylindrical lens
Second cylindrical lens array of 1122 compositions, further includes a convergent lens 1123.First cylindrical lens array and laser diode battle array
Row correspond, for being by the exciting light collimation for the big angle of divergence that each laser diode is sent out on being parallel to short-axis direction
The less parallel light of small divergence angle；Second cylindrical lens array is corresponded with diode laser matrix, for being parallel to long axis
The light collimation for the big angle of divergence for sending out the first cylindrical lens array on direction is the less parallel light of small divergence angle.Respectively through first
Cylindrical lens array and the effect of the second cylindrical lens array, the angle of divergence of the light that diode laser matrix is sent out in short axle and long axis direction
All reduce, the small divergence angle light for becoming parallel enters convergent lens 1123.Convergent lens 1123 converges to incident directional light
The plane of incidence of light guide forms approximate circle hot spot.In the present embodiment, there are one the first columns for each laser diode
Lens and second cylindrical lens correspond therewith so that each light beam key light axis direction before being incident on convergent lens 1123
It is parallel, in order to which each light beam can overlap after the convergence of concentrated lens 1123 as a hot spot.It is appreciated that laser diode battle array
The quantity of laser diode in row is not limited to 4 × 2, or other numbers.For example, diode laser matrix is one M × N
The diode laser matrix of matrix, wherein M are the quantity for being parallel to laser diode on short-axis direction, and N is to be parallel to long axis side
The quantity of upward laser diode, the first cylindrical lens array are also M × N matrix, are corresponded with diode laser matrix, the
Two cylindrical lens arrays are also M × N matrix, are corresponded with diode laser matrix, the above embodiment is M=4, N=2's
Example.
In another embodiment, diode laser matrix is the diode laser matrix of one M × N matrix, and wherein M is
It is parallel to the quantity of laser diode on short-axis direction, N is the quantity for the laser diode being parallel on long axis direction.First column
Lens array only includes M the first cylindrical lens, and each first cylindrical lens correspond to N number of laser diode, the axial direction of the first cylindrical lens
It is parallel to the long axis direction of laser diode；Second cylindrical lens array only includes N number of second cylindrical lens, each second cylindrical lens pair
Answer M laser diode, the short-axis direction for being axially parallel to laser diode of the second cylindrical lens.The technical solution reduces
The quantity of one cylindrical lens and the second cylindrical lens is the reduction of process costs although increasing materials cost.Of course, it is possible to manage
Present embodiment, can also be combined by solution with the embodiment of Fig. 6, will be in the first cylindrical lens array or the second cylindrical lens array
Any cylindrical lens array for replacing with M × N matrix.
Since the long axis and short-axis direction of laser diode are mutually perpendicular to, the axial direction of the first cylindrical lens array and second
The axis of cylindrical lens array is vertical.
In an embodiment of the invention, the beamlet that a branch of beam that laser cell is sent out is separated from each other is through the first column
After lens array and the second cylindrical lens array collimation, the angle of divergence of each light beam becomes smaller, and beam cross section product becomes larger so that each
Beamlet forms the beam array of solid matter cloth each other, and each adjacent beamlet spatially connects.The light beam is easy to be converged
Lens are converted into the hot spot of bloom energy density, are suitable for highlight illumination field.
In an embodiment of the invention, the laser cell of light-emitting component is blue laser unit, is emitted blue and swashs
Light, blue laser can be as the visible component of emergent light, while the wavelength of blue laser is shorter, can excite fluorescent material
Obtain longer wavelengths of visible light.
<Light guide>
In the present invention, the effect of light guide is the length direction (namely optical axis direction of light guide) by light guiding along light guide
It is propagated.Light guide can be optical fiber, can also be lamp guide, such as cylindrical integrating rod, rectangular integrating rod.
Light guide includes at least high refractive index medium, and exciting light is propagated in the high refractive index medium, is rolled over when being incident on the height
When penetrating the boundary face of rate medium, at least partly total reflection occurs for exciting light to continue to propagate in high refractive index medium.
Light guide is the side of light guide along the surface that optical axis direction extends.In the present invention, on the side of light guide include one or
Multiple light-leaking areas, when light is incident on the region, at least partly light lets out from light guide.In the implementation of the present invention
In mode, the side of light guide includes multiple light-leaking areas, multiple light-leaking area interval setting.
Light-leaking area can completely be covered around the optical axis of light guide in 360 ° of distributions between two sections perpendicular to optical axis
The side of lid light guide.In another embodiment, light-leaking area can also only cover the side less than 360 ° around the optical axis of light guide
Face.
Light-leaking area is different from the structure in other regions on light guide.In embodiment as shown in Figure 1, light-leaking area
1201 are provided with anti-reflection film 121, and the anti-reflection film is by being arranged multilayer highland index layer so that part light is in light-leaking area 1201
Be not totally reflected, but reflect and transmitted through light-leaking area 1201, to form emergent light.By the side that anti-reflection film is arranged
Formula forms light-leaking area, can more accurately control the light leakage rate of light-leaking area, uniform with the emergent light for improving light supply apparatus
Property.
In another embodiment, light-leaking area is the rough region of light guide surface, passes through this coarse structure so that
The incidence angle for being incident on the light of the light-leaking area changes, and is more than the angle of total reflection to the incidence angle of part light, to be able to
Emergent light is formed transmitted through light-leaking area.The rough region can be made by the physically or chemically means such as etching, corroding.
<Wavelength conversion layer>
In the present invention, wavelength conversion layer is used to exciting light being converted to the different stimulated light of wave-length coverage.Wavelength conversion layer
The layer that can be made of the fluorescent materials such as fluorescent powder and bonding agent, wherein bonding agent is linked to be a non-individual body each other, by fluorescence
Material wraps up.Fluorescent material can be such as Ce:The fluorescent powder of YAG, bonding agent can be the organic bondings such as silica gel, epoxy resin
Agent can also be the inorganic adhesives such as glass.
In one embodiment, wavelength conversion layer is fluorescence ceramics.Fluorescence ceramics can be the fluorescence ceramics of pure phase, tool
Body can be various oxide ceramics, nitride ceramics or nitrogen oxide ceramic, micro by being mixed during ceramic system is standby
Activator element (such as lanthanide series), formed the centre of luminescence.(it is generally less than since the doping of general activator element is smaller
1%), such fluorescence ceramics is typically transparent or semitransparent luminescent ceramic, exciting light be easy to propagate in the luminescent ceramic without
Change direction.For example, fluorescence ceramics can be Ce doping YAG ceramics or Ce doping LuAG ceramics.
Fluorescence ceramics can also be composite ceramic layer, using transparent/translucent ceramics as matrix, divide in ceramic substrate
Cloth luminescent ceramic particle (such as fluorescent powder grain).Transparent/translucent ceramic substrate can be various oxide ceramics (as aoxidized
Aluminium ceramics, Y3Al5O12Ceramics), nitride ceramics (such as aluminium nitride ceramics) or nitrogen oxide ceramic, the effect of ceramic substrate be
Light and heat is conducted so that exciting light can be incident on luminescent ceramic particle, and enable stimulated light from luminescent ceramic
It is emitted in layer；Luminescent ceramic particle undertakes the main lighting function of luminescent ceramic layer, for absorbing exciting light and being converted into
Stimulated light.The size of microcrystal of luminescent ceramic particle is larger, and the doping of activator element is larger (such as 1~5%) so that its
Luminous efficiency is high；And luminescent ceramic particle is scattered in ceramic substrate, avoids shining positioned at fluorescence ceramics deep place
Ceramic particle can not be excited illumination the case where being mapped to, it is thus also avoided that swash caused by pure phase fluorescence ceramics entirety doping is larger
The case where agent concentration of element poisoning living, to improve the luminous efficiency of luminescent ceramic layer.Further, in above-mentioned fluorescence ceramics
Scattering particles can also be increased, scattering particles is made to be distributed in ceramic substrate.Scattering particles can be scattering particles, such as aoxidize
Aluminium, yttrium oxide, zirconium oxide, lanthana, titanium oxide, zinc oxide, barium sulfate etc., either the scattering particles of homogenous material,
Can be two or more combination, feature is apparent white color, can be scattered to visible light, and material is steady
It is fixed, high temperature can be born, grain size is in the same order of magnitude or order of magnitude lower with excitation wavelength.
Fluorescence ceramics can also be another composite ceramic layer, the difference of the composite ceramic layer and above-mentioned composite ceramic layer
It is only that ceramic substrate difference.In the present embodiment, ceramic substrate is the fluorescence ceramics of pure phase, i.e. ceramic substrate itself has
Activator can send out stimulated light under the irradiation of exciting light.The overall evaluation of a technical project luminous pottery of above-mentioned composite ceramic layer
Advantage of the fluorescence ceramics with luminescent properties of advantage and above-mentioned pure phase of the porcelain particle with high-luminous-efficiency, while utilizing hair
Light ceramic particle shines with ceramic substrate, further improves the luminous efficiency of luminescent ceramic layer, and the ceramic substrate
Although having certain activator doping, doping is relatively low, can ensure that the ceramic substrate has enough translucency.
In the luminescent ceramic layer, it can equally increase the scattering-in of scattering particles enhancing luminescent ceramic layer.
Embodiment shown in FIG. 1 is returned to, in Fig. 1, light guide 120 passes through along multiple light leakage areas that its optical axis direction is distributed
Domain 1201, light-leaking area 1201 are provided with anti-reflection film 121, make the different position difference emission parts exciting lights of light guide.Wavelength
Conversion layer 130 is arranged in the outside of light guide 120, by by the exciting light of the light-leaking area 1201 from light guide 120 be converted by
Laser is to constitute the illumination light of light supply apparatus 10.
In the present embodiment, the light-leaking area outside light guide is arranged along the optical axis direction of light guide 120 for wavelength conversion layer 130
Near, wavelength conversion layer 130 is arranged with the interval of anti-reflection film 121.The technical solution makes the opposite sides of anti-reflection film 121 have significantly
Refringence, to ensure the realization of 121 function of anti-reflection film.It, can be in order to moreover, by by wavelength conversion layer and anti-reflection UF membrane
Assembling, dismounting and replacement, reduce the use cost of light supply apparatus.It is appreciated that in another embodiment, not considering above-mentioned
In the case of advantageous effect, wavelength conversion layer 130 can also be set up directly on anti-reflection film 121.
Fig. 2 is referred to, Fig. 2 is the structural schematic diagram of another embodiment of light supply apparatus of the present invention.Light supply apparatus 20 wraps
Light-emitting component 210, light guide 220 and wavelength conversion layer 230 are included, light guide 220 includes at least one light-leaking area 2201.
The exciting light that light-emitting component 210 is sent out enters light guide 220 from the light inlet of light guide 220, is all-trans in 220 internal cause of light guide
It penetrates and acts on and constantly reflect propagation.A light-leaking area 2201 is included at least on light guide 220, is located on the side of light guide 220.Enter
The light for being mapped to light-leaking area 2201 is partly emitted from the side of light guide 120.
Unlike embodiment shown in FIG. 1, in present embodiment, optical axis of the wavelength conversion layer 230 along light guide 220
Direction is arranged inside light guide 220, and positioned at the position of light-leaking area 2201.When exciting light is conducted to light-leaking area 2201, portion
Shunt excitation shines and is wavelength-converted layer 230 and is converted to stimulated light, and the stimulated light is from the centre of luminescence of wavelength conversion layer 230 with approximate bright
The light outgoing of uncle's distribution, wherein the light for being incident on light guide side with small incident is leaked from light guide, becomes light supply apparatus 20
Emergent light；It is not absorbed in addition, part exciting light is incident on after wavelength conversion layer 230, but is wavelength-converted layer 230 and dissipates
It penetrates, the same light as approximate Lambertian distribution, wherein the light that light guide side is incident on small incident is leaked from light guide,
As the emergent light of light supply apparatus 20.
In the present embodiment, wavelength conversion layer 230 in the process can be mixed wavelength conversion material by preparing light guide 220
Mode in the miscellaneous raw material into light guide is made.In another embodiment, light guide 220 is hollow light guide, by by wave
Long conversion layer 230 is arranged in the hollow interior of light guide, to obtain the technical solution of embodiment shown in Fig. 2.
In a variant embodiment of present embodiment, additionally it is arranged in the light-leaking area 2201 of light guide 220 anti-reflection
Film or coarse structure, to change the amount of emergent light.
In embodiment shown in Fig. 2, the description of light-emitting component 210, light guide 220 and wavelength conversion layer 230 may refer to
In the above embodiment<Light-emitting component>、<Light guide>With<Wavelength conversion layer>Description.
Fig. 3 is referred to, Fig. 3 is the structural schematic diagram of another embodiment of light supply apparatus of the present invention.Light supply apparatus 30 wraps
Light-emitting component 310, light guide 320 and wavelength conversion layer 330 are included, light guide 320 includes at least one light-leaking area 3201.
Unlike embodiment shown in Fig. 2, in embodiment shown in Fig. 3, wavelength conversion layer 330 is arranged in light
It leads outside 320, and positioned at the position of light-leaking area 3201.In the present embodiment, wavelength conversion layer 330 directly with light guide 320
Side closely connect, it is not necessary in light-leaking area 1201 increase anti-reflection film 121 in embodiment as shown in Figure 1 or by light leakage
Region shows to be roughened.This is because, wavelength conversion layer 330 and the refractive index of light guide 320 are close, it is incident on light-leaking area 3201
The ratio that is totally reflected of light be less than above-mentioned Fig. 1 illustrated embodiments.When exciting light is incident on wave by light-leaking area 3201
In long conversion layer 330, part exciting light is converted to stimulated light after being absorbed, the stimulated light from wavelength conversion layer 330 shine in
The heart is emitted with the light that approximate Lambertian is distributed；Separately there is part exciting light not absorbed, but is wavelength-converted after layer 330 scatters with close
It is emitted like the light of lambertian distribution；Also part exciting light is directly reflected back toward light guide, and continuation is propagated in light guide.From wavelength convert
Layer 330, which is emitted to the light outside light guide, becomes the emergent light of light supply apparatus 30.
In present embodiment, wavelength conversion layer 330 is arranged outside light guide, reduces manufacture craft difficulty.Moreover, this reality
The characteristic that mode utilizes wavelength conversion layer 330 and 320 refractive index close of light guide is applied, part light is guided from light guide 320,
Anti-reflection film or coarse structure need not be set, technology difficulty and cost are further reduced.
It, can be additionally on surface of the wavelength conversion layer 330 far from light guide 320 in the variant embodiment of present embodiment
Anti-reflection film or coarse structure are set, to improve emergent light.
In embodiment shown in Fig. 3, the description of light-emitting component 310, light guide 320 and wavelength conversion layer 330 may refer to
In the above embodiment<Light-emitting component>、<Light guide>With<Wavelength conversion layer>Description.
Fig. 4 is referred to, Fig. 4 is the structural schematic diagram of another embodiment of light supply apparatus of the present invention.Light supply apparatus 40 wraps
Light-emitting component 410, light guide 420 and wavelength conversion layer 430 are included, light guide 420 includes at least one light-leaking area 4201.
Unlike embodiment shown in FIG. 1, in present embodiment, wavelength conversion layer 430 is arranged in light guide 420
Portion.As described above, the technical solution can be by being doped fluorescent material during preparing light guide to light guide, or pass through
The mode for being laid with wavelength conversion layer in hollow light guide is realized.In one embodiment, wavelength conversion layer 430 is around light guide 420
Optical axis to be less than 360 ° of distributions (such as, but not limited to 90 °), and light-leaking area 4201 is oppositely arranged with wavelength conversion layer 430,
And light-leaking area 4201 around the optical axis of optical axis 420 also to be less than 360 ° of distributions.In another embodiment, wavelength conversion layer around
The optical axis of light guide is in 360 ° of distributions.
In embodiment as shown in Figures 1 to 3, wavelength conversion layer 130 divides along the optical axis direction of light guide 120 in segmented
Cloth, and in embodiment shown in Fig. 4, wavelength conversion layer 430 is continuously distributed along the optical axis direction of optical axis 420.The technical side
In case, stimulated light more uniformly spreading in light guide, partially-excited light is passed along the optical axis direction of light guide together in company with exciting light
It broadcasts, and in the leakage outgoing of 4201 position of light-leaking area of 420 side of light guide as the emergent light of light supply apparatus 40.
In the present embodiment, 4201 position of light-leaking area is provided with anti-reflection film 421, as described in the respective embodiments described above, increases
Permeable membrane 421 may be set to be coarse structure, and details are not described herein again.
In embodiment shown in Fig. 4, the description of light-emitting component 410, light guide 420 and wavelength conversion layer 430 may refer to
In the above embodiment<Light-emitting component>、<Light guide>With<Wavelength conversion layer>Description.
Fig. 5 is referred to, Fig. 5 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.Light supply apparatus 50
Including light-emitting component 510, light guide 520 and wavelength conversion layer 530, light guide 520 includes at least one light-leaking area 5201.
The exciting light that light-emitting component 510 is sent out enters light guide 520 from the light inlet of light guide 520, is all-trans in 520 internal cause of light guide
It penetrates and acts on and constantly reflect propagation.A light-leaking area 5201 is included at least on light guide 520, is located on the side of light guide 520.Enter
The light for being mapped to light-leaking area 5201 is emitted from the side of light guide 520.
Unlike the respective embodiments described above, in present embodiment, light guide 520 is same unitary with wavelength conversion layer 530
Part, i.e. light guide 520 exist as the light guide of leaded light effect and the wavelength conversion layer of wavelength convert effect simultaneously.
In present embodiment, light guide 520 (wavelength conversion layer 530) is pure phase fluorescence ceramics, transparent or translucent.In light
Lead in 520 (wavelength conversion layers 530), the propagation path of unabsorbed exciting light in the light guide not comprising wavelength conversion layer
Propagation path it is identical, i.e., the part exciting light is only leaked out in the light-leaking area 5201 of light guide 520 (wavelength conversion layer 530)
It penetrates, and is totally reflected in other lateral locations and continues to propagate along light guide optical axis direction.One in present embodiment is preferred real
It applies in example, light guide 520 (wavelength conversion layer 530) is Ce:YAG ceramic crystals, the ceramic crystal are high to the transmissivity of exciting light.
In present embodiment, when the exciting light that light-emitting component 510 is emitted is propagated in light guide 520 (wavelength conversion layer 530),
Part exciting light is absorbed by the centre of luminescence in light guide 520 (wavelength conversion layer 530) and is converted to stimulated light outgoing, from shining
The light that the heart is sent out is the light in lambertian distribution.Stimulated light is leaked from light-leaking area 5201 and is emitted, and becomes light source together with exciting light
The emergent light of device 50.
In the present embodiment, 5201 position of light-leaking area is provided with anti-reflection film 521, as described in the respective embodiments described above,
Anti-reflection film 521 may be set to be coarse structure, and details are not described herein again.
In present embodiment, the description of light-emitting component 510 may refer in the above embodiment<Light-emitting component>Description.
Fig. 7 is referred to, Fig. 7 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.As shown, light
Source device 60 includes light-emitting component 610, light guide 620 and wavelength conversion layer 630, and light guide 620 includes at least one light-leaking area
6201, light-leaking area 6201 is provided with anti-reflection film 621.Present embodiment is similar with embodiment shown in fig. 5,620 He of light guide
Wavelength conversion layer 630 is identity element.
Present embodiment and embodiment shown in fig. 5 the difference is that, in present embodiment, the end of light guide 620
It is provided with a reflecting surface 640, which intersects with the optical axis of light guide 620.In present embodiment, along the optical axis of light guide 620
The exciting light and stimulated light of propagation leak emission parts light in communication process in light-leaking area 6201.It is last when reaching light guide 620
When end, it there remains part light and be not emitted, this part light reflection is made exciting light and stimulated light continue along light guide 620 by reflecting surface 640
Optical axis backpropagation, in communication process in light-leaking area 6201 leak be emitted.Due to light propagation and constantly let out
Leakage, along the remoter of light guide optical axis, the optical energy density in light guide is lower, it would be possible to lead to the area farther out apart from light-emitting component
The light quantity of domain leakage is less, causes light supply apparatus emergent light uneven.Present embodiment passes through anti-in 620 end of light guide setting one
Penetrate face 640 so that light subsequent resume that can turn back is broadcast, and the light of leakage when being propagated along positive and negative both direction will become by superposition
It obtains more uniform.
It is appreciated that in each embodiment of above-mentioned Fig. 1~Fig. 4, a reflecting surface can also be added in light guide end, together
Sample realizes the uniform effect of light supply apparatus emergent light.
Fig. 8 is referred to, Fig. 8 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.As shown, light
Source device 70 includes light-emitting component 710, light guide 720 and wavelength conversion layer 730, and light guide 720 includes at least one light-leaking area
7201, light-leaking area 7201 is provided with anti-reflection film 721.Present embodiment is similar with embodiment shown in Fig. 7,720 He of light guide
Wavelength conversion layer 730 is identity element.
Present embodiment and embodiment shown in Fig. 7 the difference is that, in present embodiment, 720 end of light guide is set
What is set is not reflecting surface, and is provided with the second light-emitting component 710 ', second light-emitting component 710 ' transmitting and light-emitting component 710
Identical second exciting light, second exciting light is reversely incident from the end of light guide 720, and the second light-emitting component 710 ' emits
Exciting light follow circulation way identical with the exciting light that light-emitting component 710 is sent out.That is the second light-emitting component 710 ' transmitting
Exciting light is leaked in light-leaking area 7201, and is propagated along light guide 720 due to total reflection in other regions.
In present embodiment, by the way that light-emitting component is respectively set at 720 both ends of light guide, going out for light supply apparatus 70 can be improved
Optical uniformity is penetrated, the problem of being unevenly distributed because of the emergent light that light is brought along light guide propagation attenuation is avoided.
It is appreciated that in each embodiment of above-mentioned Fig. 1~Fig. 5, one second can also be added in light guide end and shone
Element, it is same to realize the uniform effect of light supply apparatus emergent light.
The light supply apparatus of the present invention can be used for general lighting, such as home lighting, office lighting, can be used for special type
Illumination, such as street lighting, illumination of plant building.The light-emitting area of the light supply apparatus is big, excellent radiation performance, can be suitable for high brightness
Illumination.
In the long-distance illuminations such as street lighting, light-emitting component can be arranged in the bottom of street lamp, then pass through light guide
Optical fiber guides the exciting light that light-emitting component is sent out to the luminous lamp cap position in the top of street lamp.In street lamp post part, light guide
The side of optical fiber is not provided with light-leaking area so that exciting light can almost be transmitted to lamp cap.
As shown in figure 9, the structural schematic diagram of the another embodiment for light supply apparatus of the present invention.Light supply apparatus 80 is one
Street lamp (street lamp), including light-emitting component 810, light guide 820 and wavelength conversion layer 830.Wherein, light guide 820 includes two parts, the
A part is vertical component in figure (corresponding lamp stand), and the side of the part light guide does not have light-leaking area, what light-emitting component 810 was sent out
Light is upwardly propagated in the first part by total reflection；Second part is the horizontal component (corresponding lamp cap) in figure, the part
Light guide is identity element with wavelength conversion layer 830, and the side of the part light guide is provided with light-leaking area 8201, for transmiting at least
The stimulated light that part exciting light and wavelength conversion layer 830 are sent out, to realize the function of illumination.
Light-emitting component in present embodiment is referred to above-mentioned<Light-emitting component>In description.Light in present embodiment
The technical solution of light guide and wavelength conversion layer in above-mentioned Fig. 1~Fig. 5 can also be replaced with by leading 820 second part.
Figure 10 is referred to, Figure 10 is the structural schematic diagram of the another embodiment of light supply apparatus of the present invention.Light supply apparatus
90 be a street lamp (street lamp), including light-emitting component 910, light guide 920 and wavelength conversion layer 930.
In present embodiment, light guide 920 includes equally two parts, and first part is the light guide portion for being not provided with light-leaking area
Point, second part is the light guide section for being provided with light-leaking area.Wherein second part can select any light source in Fig. 1~5 and 7
The technical solution of light guide and wavelength conversion layer as present embodiment in device.
Present embodiment and embodiment shown in Fig. 9 the difference is that, the light that light-emitting component 910 is sent out is small diverging
The light beam at angle, which but propagates directly up without the total reflection of the first part of light guide 920, through anti-on light guide
It penetrates after layer 9202 reflects and changes direction, into the lamp cap position of the second part of light guide 920.
In a variant embodiment of present embodiment, light guide does not have first part (lamp stand part), light-emitting component
The exciting light sent out is directly transmitted to the position approximate horizontal with lamp cap from bottom, then the change side after speculum reflection
To into light guide (cap part).
The application example of figure 9 above, the light supply apparatus that Figure 10 is the present invention on street lamp.Certainly, application of the invention is not
It is limited to street lamp.Can be on the basis of above-mentioned Fig. 1~Fig. 5, Fig. 7~Fig. 8, the arbitrarily setting reflection between light-emitting component and light guide
The optical elements such as mirror, lens, also within the technical scope of the present invention.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (11)
1. a kind of light supply apparatus, which is characterized in that including：
Light-emitting component, for sending out exciting light；
Light guide is arranged in the light path of the exciting light, at least partly described exciting light along the light guide optical axis in the light
Inner total reflection propagation is led, the light guide includes at least a light-leaking area, and the light-leaking area is arranged in the side of the light guide,
For guiding at least partly light to be emitted from the light guide；
Wavelength conversion layer is arranged in the light guide or is arranged the light leakage outside the light guide along the optical axis direction of the light guide
Areas adjacent, for absorbing at least partly exciting light and being converted into the different stimulated light of wave-length coverage.
2. light supply apparatus according to claim 1, which is characterized in that the light-emitting component includes laser cell and light shaping
Unit, the light shaping unit is for guiding the exciting light that the laser cell is sent out to the light incident surface of the light guide；
The laser cell is diode laser matrix, and the light shaping unit includes the first cylindrical lens array, the second cylindrical lens
Array and convergent lens, the axial direction of first cylindrical lens array are axially vertical with second cylindrical lens array.
3. light supply apparatus according to claim 2, which is characterized in that first cylindrical lens array includes and the laser
One-to-one first cylindrical lens of diode array and/or second cylindrical lens array include and the laser diode battle array
Arrange one-to-one second cylindrical lens.
4. light supply apparatus according to claim 1, which is characterized in that the light-leaking area is provided with anti-reflection film, Huo Zhesuo
It states light-leaking area and is provided with coarse structure.
5. light supply apparatus according to any one of claim 1 to 4, which is characterized in that the wavelength conversion layer is located at institute
It states outside light guide, and the wavelength conversion layer is arranged with the light-leaking area interval.
6. light supply apparatus according to any one of claim 1 to 4, which is characterized in that the wavelength conversion layer is set to
The light-leaking area, the wavelength conversion layer are set to inside the light guide；Or
The wavelength conversion layer is set to the light-leaking area, and the wavelength conversion layer is set to outside the light guide, and described
Wavelength conversion layer is connected with the light guide side.
7. light supply apparatus according to any one of claim 1 to 4, which is characterized in that the wavelength conversion layer is described in
The optical axis direction of light guide is distributed in segmented.
8. light supply apparatus according to any one of claim 1 to 4, which is characterized in that the wavelength conversion layer is described in
The optical axis direction of light guide is continuously distributed.
9. light supply apparatus according to any one of claim 1 to 4, which is characterized in that the light guide turns with the wavelength
It is identity element to change layer, and the wavelength conversion layer is fluorescence ceramics.
10. light supply apparatus according to any one of claim 1 to 4, which is characterized in that including reflecting surface, be located at described
The end of light guide, and the reflecting surface intersects with the optical axis of the light guide.
11. light supply apparatus according to any one of claim 1 to 4, which is characterized in that including the second light-emitting component, position
In the end of the light guide, for sending out the second exciting light, which is incident on the light from the end of the light guide
In leading.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061044.9A CN108361566A (en) | 2017-01-25 | 2017-01-25 | A kind of light supply apparatus |
| PCT/CN2017/090350 WO2018137313A1 (en) | 2017-01-25 | 2017-06-27 | Light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061044.9A CN108361566A (en) | 2017-01-25 | 2017-01-25 | A kind of light supply apparatus |
Publications (1)
| Publication Number | Publication Date |
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| CN108361566A true CN108361566A (en) | 2018-08-03 |
Family
ID=62978815
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710061044.9A Pending CN108361566A (en) | 2017-01-25 | 2017-01-25 | A kind of light supply apparatus |
Country Status (2)
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| CN (1) | CN108361566A (en) |
| WO (1) | WO2018137313A1 (en) |
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| CN109185775A (en) * | 2018-09-10 | 2019-01-11 | 深圳市昂特尔太阳能投资有限公司 | Laser lamp post structure |
| WO2020019714A1 (en) * | 2018-07-26 | 2020-01-30 | 深圳市绎立锐光科技开发有限公司 | Illumination device |
| WO2020048153A1 (en) * | 2018-09-04 | 2020-03-12 | 深圳市绎立锐光科技开发有限公司 | Light-emitting device |
| WO2023070478A1 (en) * | 2021-10-28 | 2023-05-04 | 京东方科技集团股份有限公司 | Light-emitting substrate and preparation method therefor, and light-emitting device |
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| US11256018B2 (en) | 2019-07-03 | 2022-02-22 | Varroc Lighting Systems, s.r.o | Light assembly including an illuminating utility segment and a visual stimulant segment |
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