CN107036033A - Light-emitting device and illuminator - Google Patents
Light-emitting device and illuminator Download PDFInfo
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- CN107036033A CN107036033A CN201710433894.7A CN201710433894A CN107036033A CN 107036033 A CN107036033 A CN 107036033A CN 201710433894 A CN201710433894 A CN 201710433894A CN 107036033 A CN107036033 A CN 107036033A
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- light source
- fluorescence coating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
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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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
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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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a kind of light-emitting device and illuminator, including：Excite light unit, wavelength conversion unit and reflector element, light unit is excited to include laser source unit and LED light source unit, the position of wavelength conversion unit is corresponding with the focus of reflector element, the laser beam of laser source unit transmitting and the light beam of LED light source unit transmitting are projected on wavelength conversion unit and inspire fluorescence respectively, and fluorescence is after reflector element reflects by assigned direction outgoing.The present invention in light unit is excited by setting laser source unit, and its laser beam launched has collimation good, and the characteristic that energy is concentrated forms the spot light of super brightness, so as to improve the center illumination of distance light, meets the demand of distance light；By the cooperation of laser source unit and LED light source unit, the illumination of light field central area and fringe region can be accurately adjusted, the light distribution that automobile far lighting standard is met with minimum power is realized, the effect of energy-conservation is reached while lighting criteria is met.
Description
Technical field
The present invention relates to lighting technical field, and in particular to a kind of light-emitting device and illuminator.
Background technology
With the development of semiconductor technology, LED (Light Emitting Diode, light emitting diode) light sources are because with height
The advantages of effect, energy-conservation, environmental protection, low cost and long lifespan, just progressively replacing traditional incandescent lamp and electricity-saving lamp, it is logical as one kind
Lighting source.
In existing LED automobile headlamp, LED/light source is located at the focal point of car light reflector, the light beam of LED/light source outgoing
Collected through car light reflector and back-end optical system (including baffle plate, lens etc.) luminous intensity distribution, it is remote required for finally projecting
Dipped beam field distribution.This kind can be met the light distribution of matching somebody with somebody of the headlight for vehicles dipped beam of demand, but when forming distance light distribution,
Due to being limited by current LED light source brightness, generally there is the problem of center illumination is substantially inadequate, shone in such as light of stage
Bright, headlight for vehicles, Projection Display etc. need the application field of super brightness light source, and LED/light source is just difficult to satisfaction and require that.
The content of the invention
The present invention not only has far and near optical field distribution for above-mentioned technical problem there is provided a kind of, meets distance light center
Illumination, and light-emitting device simple in construction and illuminator.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of light-emitting device, including：Excite light unit,
Wavelength conversion unit and reflector element, it is described to excite light unit to include laser source unit and LED light source unit, the wavelength convert
The position of unit is corresponding with the focus of the reflector element, the laser beam and LED light source unit hair of the laser source unit transmitting
The light beam penetrated is projected on the wavelength conversion unit and inspires fluorescence respectively, and the fluorescence reflects by the reflector element
Assigned direction outgoing is pressed afterwards.
Further, the LED light source unit is corresponding with the position of the wavelength conversion unit, positioned at the reflector element
The same side.
Further, the laser source unit and wavelength conversion unit are divided into the both sides of the reflector element, described anti-
Penetrating unit and being provided with is used for the thang-kng portion through the laser beam.
Further, the angle between the laser beam and the reflector element is 80~90 °, the position in the thang-kng portion
Position with the laser beam is corresponding.
Further, the laser source unit includes one or more lasing light emitters, and the thang-kng portion is provided with one or more.
Further, the laser source unit also includes one in collimation unit, beam angle change unit, focusing unit
Kind or two kinds and the above combination, the collimation unit, beam angle change unit, focusing unit and set along light path.
Further, the LED light source unit includes substrate and at least one LED/light source, the wavelength conversion unit bag
At least one fluorescence coating is included, the fluorescence coating is on the LED/light source or on the substrate, each LED/light source
Top one fluorescence coating of correspondence, lower section is on the substrate.
Further, the reflector element is curved mirror, and the wavelength conversion unit is located at the focal point of the curved mirror,
The laser beam projects are to the central area of the wavelength conversion unit upper surface, and the LED/light source and fluorescence coating are respectively equipped with
At least one, is when the quantity of LED/light source and fluorescence coating is multiple, multiple fluorescence coating close-packed arrays and positioned at the song
One fluorescence coating of correspondence above the focal point of face mirror, each LED/light source, is provided between the LED/light source and the substrate
Reflecting interface.
Further, the reflector element is spliced by multiple curved mirrors, and the wavelength conversion unit is located at the song
The focal point of face mirror, the central area of the laser beam projects to the wavelength conversion unit upper surface, the LED/light source and glimmering
Photosphere is respectively equipped with 2n+1, and n is >=1 natural number, and multiple fluorescence coating gap distributions, and each fluorescence coating is located at
One fluorescence coating of correspondence, the LED/light source and the lining above the focal point of one curved mirror of correspondence, each LED/light source
Reflecting interface is provided between bottom.
Further, it is additionally provided with heat dissipation base below the substrate.
Present invention also offers a kind of illuminator, including light-emitting device as described above, and positioned at the luminous dress
The baffle plate and projecting lens at light-emitting window are put, the reflector element is in ellipsoid structure, and the wavelength conversion unit is located at described
Reflector element close to inner side focal point, the baffle plate be located at the reflector element close to outside focal point.
Light-emitting device and illuminator that the present invention is provided, compared with prior art, with advantages below：
(1) by setting laser source unit and LED light source unit in light unit is excited, wherein laser source unit is launched
Laser beam has collimation good, the characteristic that energy is concentrated, and can form the spot light of super brightness, so as to improve in distance light
Degree of understanding without being told, meets the demand of distance light；And the beam spread angle that LED light source unit is sent is big, meet the demand of dipped beam；
(2) by opening or closing laser source unit, so that the free switching between distance light and dipped beam is realized, operation
Simply, it is easy to use；
(3) by the cooperation of laser source unit and LED light source unit, light field central area and fringe region can accurately be adjusted
Illumination, can be achieved to be met the light distribution of automobile far lighting standard with minimum power, meeting the same of lighting criteria
When reach the effect of energy-conservation；
(4) simple and compact for structure, small volume of the invention, cost bottom, convenient disassembly, stability is good, and reality is met conscientiously
The need for.
Brief description of the drawings
Fig. 1 is the structural representation of light-emitting device in the embodiment of the present invention 1；
Fig. 2 is the structural representation of fluorescence coating and LED light source unit in the embodiment of the present invention 1；
Fig. 3 is the light field schematic diagram of the light-emitting device formation in the embodiment of the present invention 1；
Fig. 4 is schematic diagram of the laser beam projects to fluorescence coating in Fig. 3；
Fig. 5 is the medium wavelength converting unit one of which schematic diagram of the embodiment of the present invention 2；
Fig. 6 is the medium wavelength converting unit one of which schematic diagram of the embodiment of the present invention 4；
Fig. 7 is the one of which schematic diagram of reflector element in the embodiment of the present invention 4；
Fig. 8 is the one of which schematic diagram of reflector element in the embodiment of the present invention 6；
Fig. 9 is the one of which structural representation of illuminator in the embodiment of the present invention 7.
Shown in figure：11st, laser source unit；110th, lasing light emitter；111st, beam angle changes unit；112nd, focusing unit；
12nd, LED light source unit；121st, substrate；122nd, LED/light source；123rd, reflecting interface；20th, wavelength conversion unit；210th, fluorescence coating；
30th, reflector element；31st, thang-kng portion；310th, curved mirror；40th, heat dissipation base；50th, baffle plate；60th, projecting lens；70th, light field center
Region；71st, light field fringe region.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
As shown in fig. 1, the invention provides a kind of light-emitting device, including：Excite light unit, wavelength conversion unit 20 and anti-
Unit 30 is penetrated, it is described to excite light unit to include laser source unit 11 and LED light source unit 12, the position of the wavelength conversion unit 20
Put corresponding with the focus of the reflector element 30, the laser beam and LED light source unit 12 that the laser source unit 11 is launched are launched
Light beam be projected to respectively on the wavelength conversion unit 20 and inspire fluorescence, the fluorescence by the reflector element 30 it is anti-
By assigned direction outgoing after penetrating, to be formed in the light beam advanced in defined solid angle, the present invention due to wavelength conversion unit
20 are located at the focal point of the reflector element 30, therefore the fluorescence inspired on wavelength conversion unit 20 is through the reflector element 30
Parallel light emergence, as parallel illumination light are formed after reflection.Laser source unit 11 and LED/light source are set in light unit is excited
The laser beam of unit 12, wherein laser source unit 11 transmitting has collimation good, and the characteristic that energy is concentrated can be formed super bright
The spot light of degree, so as to improve the center illumination of distance light；And the beam spread angle that LED light source unit 12 is sent is big, meet
The requirement of dipped beam, therefore by opening or closing laser source unit 11, the freedom between distance light and dipped beam just can be realized
Switching, it is easy to use.
The light-emitting device and illuminator provided in the present invention, which is applicable to stage lighting, headlight for vehicles, Projection Display etc., to be needed
The application field of super brightness light source is wanted, during this paper is described below by taking car lighting lamp (referring mainly to headlamp) as an example, but not
It is restricted.
Fig. 1 is continued referring to, the LED light source unit 12 is corresponding with the position of the wavelength conversion unit 20, positioned at institute
The same side of reflector element 30 is stated, i.e., the light beam that LED light source unit 12 is sent directly is projected on wavelength conversion unit 20 and swashed
Send fluorescence.Certain LED light source unit 12 can also be arranged on the opposite side of the relative reflection unit 30 of wavelength conversion unit 20, but
It is due to that the beam spread angle that LED light source unit 12 is launched is big, if being needed apart from wavelength conversion unit 20 away from too far away
Light beam is converged using parts such as extra convergence microscope groups, structure complexity is high, installation and debugging trouble, therefore herein
The position for being located proximate to wavelength conversion unit 20 of LED light source unit 12, without extra part, greatly reduces the knot of device
Structure complexity and cost.In addition wavelength conversion unit 20 is removably mounted on LED light source unit 12 in the present embodiment, both may be used
To avoid both from relatively moving when in use, improve the stability of device, at the same also allow for changing LED light source unit 12 or
Wavelength conversion unit 20, improves degree easy to use.
Fig. 1 is continued referring to, the laser source unit 11 and wavelength conversion unit 20 are divided into the reflector element 30
Both sides, the reflector element 30, which is provided with, is used for the thang-kng portion 31 through the laser beam.Specifically, the quantity in thang-kng portion 31 can
To be one or more, it can be the through hole of through hole or the transparent component provided with permeable laser beam, or with
The transparent component of the permeable laser beam of reflector element 30 integrally, the transparent component of the permeable laser can be had
The transparent panel of optical filter, the transparent panel can pass through laser, while the fluorescence that reflection is inspired through wavelength conversion unit 20, i.e., white
Coloured light, can so prevent the fluorescence through the outgoing of wavelength conversion unit 20 from being leaked from thang-kng portion 31.Thang-kng portion 31 is used to swash
Beam direction wavelength conversion unit 20, it can be ellipse, circular or other shapes, and size and the diameter of laser beam are mutually fitted
Match somebody with somebody, pass through laser beam.Laser source unit 11 is arranged on opposite side of the wavelength conversion unit 20 relative to reflector element 30, just
In carrying out flexible design to the structure of laser source unit 11 and position according to the steric requirements used and being conveniently replaceable, swash certainly
Light source cell 11 can also be installed on the same of the relative reflection unit 30 of wavelength conversion unit 20 as LED light source unit 12
Side, so can further simplify the structure of light-emitting device.
It is preferred that, the angle between the laser beam and the reflector element 30 is 80~90 °, the position in the thang-kng portion 31
Put corresponding with the position of the laser beam, i.e. the angle in laser beam and thang-kng portion 31 is 80~90 °, specifically, make laser beam with
The area in thang-kng portion 31 can not only be reduced by being incided close to 90 ° on reflector element 30, while improving laser source unit 10, reflection
Compact in design between unit 30, reduces space-consuming.
It is preferred that, the laser source unit 11 includes one or more lasing light emitters 110, with specific reference to the power of output light,
Particularly center illumination is needed to be designed, naturally it is also possible to multiple lasing light emitters 110 are set in laser source unit 11, are being used
When as needed selection work at present lasing light emitter 110 quantity, such as by switch element selected, can so enter one
Step improves degree easy to use and universal performance.The quantity in the thang-kng portion 31 is one or more, specifically, when lasing light emitter 110
During only one of which, thang-kng portion 31 is also correspondingly provided with one；When the quantity of lasing light emitter 110 is multiple, i.e., >=2 when, thang-kng portion 31
Quantity can also only one of which, now, the light beam that multiple lasing light emitters 110 are launched shares a thang-kng portion 31；Certain thang-kng portion
31 can also correspond provided with multiple with lasing light emitter 110, and each thang-kng portion 31 is used for swashing that correspondence lasing light emitter 110 is launched
Beam direction wavelength conversion unit 20.In the present embodiment, the preferably semiconductor laser, namely laser diode of lasing light emitter 110,
With small volume, long lifespan feature, the volume of device is reduce further, service life and stability is improved.It is used herein as
Semiconductor laser can be that there is the element of 1 luminous point on 1 chip or have on 1 chip many
The element of individual luminous point.
Fig. 1 is continued referring to, the laser source unit 11 also includes collimation unit (not marked in figure), beam angle and changed
The combination of one or both of unit 111, focusing unit 112 and the above, the collimation unit, beam angle change unit
111st, focusing unit 112 is set along light path.Wherein, collimation unit may be provided in the exit of lasing light emitter 110, generally saturating using collimation
Mirror or other beam collimation elements, the laser for outputting it become to collimate directional light, further improve the collimation of laser beam
Property.Beam angle, which changes unit 111, to be used to enter horizontal deflection to laser beam, to change its direct of travel, so that whole system
Compact conformation, beam angle change unit 111 can use plane mirror or curved reflector, it would however also be possible to employ metal film or
Deielectric-coating etc., can reach identical effect, certainly, when using space unrestricted, can directly adjust semiconductor and swash
The angle of light device and save beam angle change unit 111, so as to reduce cost.Focusing unit 112 can use condenser lens
Or other concentrating elements, for converging laser beam, it is projected better by thang-kng portion 31 on wavelength conversion unit 20, together
When can also by adjust the curved surface of the focusing unit 112 so that when laser beam is incided on wavelength conversion unit 20 formed close
The light of suitable size, as shown in fig. 1, has used collimation unit, beam angle to change unit 111 simultaneously in laser source unit 11
In focusing unit 112, and three is arranged in order along light path, but allows in actual use, and collimation can be selected as needed
Unit, beam angle change a kind of exclusive use in unit 111, focusing unit 112, or select two or three therein
It is combined and uses, while the position of three can be according to needs to be arranged, as long as ensureing that laser beam can pass through using space
Thang-kng portion 31 is projected on wavelength conversion unit 20.
It is preferred that, the LED light source unit 12 includes substrate 121 and at least one LED/light source 122, the wavelength convert
Unit 20 includes at least one fluorescence coating 210, and the fluorescence coating 210 is on the LED/light source 122 or located at the substrate
On 121, each top of LED/light source 122 one fluorescence coating 210 of correspondence, lower section is on the substrate 121.
As shown in Fig. 2 in the present embodiment, the LED/light source 122 and fluorescence coating 210 are respectively equipped with one, fluorescence coating 210
Positioned at the top of LED/light source 122, the lower section of LED/light source 122 is connected on substrate 121 by reflecting interface 123, specifically, substrate
121 have both sides effect, the heat on the one hand producing LED/light source 122 conduction downwards, are on the other hand set on substrate 121
Electrode is put, its externally connected power supply, for being powered to LED/light source 122.LED/light source 122 is luminous two in the present embodiment
Pole pipe, is integrated on a chip, by the electricity input spontaneous radiation of substrate 121 in outgoing beam, i.e. exciting light, the exciting light
A part transmit upwards and enter fluorescence coating 210, excite fluorescence portion therein to produce fluorescence, another part is transmitted downwards simultaneously
Incide on reflecting interface 123, reflecting interface 123 has higher reflectivity, and the part light is equally reflexed into fluorescence coating 210
Go up and excite fluorescence portion therein to produce fluorescence, the exciting light for making full use of LED/light source 122 to send improves LED/light source 122
Utilization rate.
In the present embodiment, fluorescence coating 210 is located at the top of LED/light source 122, on the one hand for receiving from the outgoing of LED/light source 122
Exciting light so that produce the different Stimulated Light of wavelength, while fluorescence coating 210 also receives and carrys out the laser that self-excitation light source 110 produces and enter
And export Stimulated Light.Further, since there is the reflecting interface 123 of high reflectance between LED/light source 122 and substrate 121, so as to
Outgoing after ensureing fluorescence that fluorescence coating 210 exports almost all reflected unit 30 reflecting, therefore can ensure that fluorescence coating 210 has
There is higher light extraction efficiency.In the present embodiment, fluorescence coating 210 is detachably connected with LED/light source 122, is conveniently replaceable, it can
To be covered by technique for sticking on LED/light source 122, or by parts such as transparent buckles on LED/light source 122, certainly
Can also otherwise, as long as the effect being detachably connected can be realized.Two surfaces up and down of fluorescence coating 210 can be with
Receive exciting for self-excitation light source 110 and the output light of LED/light source 122 respectively, so that fluorescence coating 210 has higher brightness,
Meet the demand that distance light is applied in car headlamp.Fluorescence coating 210 and corresponding LED/light source 122 are encapsulated in it is of course possible to carve
Together, or even by wavelength conversion unit 20 and LED light source unit 12 it is packaged together, to reduce assembling difficulty and improve both
Relative position stability, but be inconvenient to change fluorescence coating 210 or LED/light source 122 using which, can also make in addition glimmering
Photosphere 210 is not contacted with LED/light source 122, is such as suspended on LED/light source 122, as long as can guarantee that both relative positions are stable not
Change.
Fluorescence coating 210 can be had the part of fluorophor particle in the inner dispersion for encapsulating base material or be fixed with fluorophor grain
The part of son.As the encapsulating base material of fluorescence coating 210, the material that preferably clear is high, heat resistance is high, can be glass material (such as
Unorganic glass, organic-inorganic hybrid glass etc.), the resin material of silicones etc..Wherein glass material can use low-melting glass.
Fluorescence coating 210 can receive exciting for the exciting light exported from LED/light source 122, and then it is different to produce wavelength therewith
Fluorescence；It is also possible to receive exciting for the laser of the output of self-excitation light source 110, and then produce different glimmering of wavelength therewith
Light.When the light source as car headlamp, according to the rules, its output light must be the white light with prescribed limit colourity.
Therefore, the fluorophor contained in fluorescence coating 210 will be selected in the way of illumination light is turned into white, and one of which is preferred
Scheme is：The output 405nm of LED/light source 122 (bluish violet) or 450nm (blueness) exciting light, while lasing light emitter 110 is also exported
405nm (bluish violet) or 450nm (blueness) exciting light, and being comprised at least in fluorescence coating 210 has the above-mentioned exciting light of absorption and incites somebody to action
It is converted to the yellow fluorescent powder of gold-tinted, in this way, the gold-tinted being converted to and unconverted blue light can be produced white
Light.In addition, the wavelength of the wavelength from the exciting light of the outgoing of LED/light source 122 and the laser from the outgoing of lasing light emitter 110 can with identical,
Can also be different, it can be selected according to practical application situation.
In the present embodiment, the outgoing beam of fluorescence coating 210 is in lambertian distribution, and reflected unit 30 is formed after reflecting in far field
Required optical field distribution.It is preferred that, reflector element 30 is a curved mirror 310, and the curved mirror 310 can be that two surfaces are coated with
The component of metallic film, or metal component, the glass component for being coated with reflectance coating, or plate the component of deielectric-coating etc., as long as
Function needed for realizing, is not restricted herein., can be except thang-kng when component of the curved mirror 310 using glass system
Region plating reflectance coating outside portion 31, and do not open up through hole at thang-kng portion 31 or the transparent component that can pass through laser is set, letter
The structure of curved mirror 310 is changed.In addition, the surface face type of the present embodiment mean camber mirror 310 can be parabola, ellipsoid or its
Its curved surface, only need to meet following condition：Institute's shape is turned round including at least the parabola is made by gyroaxis of parabolical symmetry axis
Into curved surface (parabolic surface) by above-mentioned gyroaxis plane cut-out obtained from curved surface a part.
The wavelength conversion unit 20 is located at the focal point of the curved mirror 310, the i.e. fluorescence coating 210 and is located at curved mirror
310 focal point, to ensure fluorescence outgoing in the horizontal direction after the reflection of curved mirror 310 from the outgoing of fluorescence coating 210.Existing
In the application of automobile far lighting, due to the luminance shortage of LED/light source 122, and cause the center of formed distance light field distribution
The luminance shortage in domain, and irradiation distance it is not remote enough the problem of, therefore the present invention in the case of the normal luminous of LED/light source 122,
Laser beam front is launched by lasing light emitter 110 and excites fluorescence coating 210, so as to improve the brightness of light-emitting device, it is met automobile
The application demand of far lighting.In addition, when LED/light source 122 does not light, can also as long as the power of adjustment incident laser
Fluorescence coating 210 is excited to produce sufficiently strong Stimulated Light to meet the demand of automobile far lighting.
It is illustrated in figure 3 the schematic diagram that light-emitting device of the present invention is applied to automobile far lighting.To automobile far lighting
Speech, required optical field distribution approximate ellipsoidal, when only LED/light source 122, the optical field distribution formed and LED/light source 122
There are following mapping relations between light-emitting area：The light of light field fringe region 71 corresponds to the marginal portion outgoing of LED/light source 122
Light, the light of light field central area 70 corresponds to the light of the core outgoing of LED/light source 122, and existing LED/light source 122
In application as automobile far lighting light source, because the illumination of the core of LED/light source 122 is inadequate, so as to cause in light field
The illumination of heart district domain 70 is not enough and irradiation distance is not remote enough, therefore need to only focus the laser beam into the central area of fluorescence coating 210
(as shown in the Black oval region in Fig. 3) can improve the illumination of light field central area 70, as shown in Figure 4.Now, fluorescence
The brightness of layer 210 is uneven, i.e. the brightness of central area is high, and the brightness of fringe region is low, just can so use minimum
Power is met the light distribution of automobile far lighting standard, and energy consumption is low.
The light-emitting device continued referring in Fig. 1, the present invention also includes the heat dissipation base 40 located at the lower section of substrate 121.Dissipate
Hot base 40 is the supporting member of LED light source unit 12, and its effect expeditiously can produce LED light source unit 12
Hot export downwards, preferably the high metal of thermal conductivity or ceramic material are made.
Embodiment 2
As different from Example 1, in the present embodiment, LED/light source 122 and fluorescence coating 210 be respectively equipped with it is multiple, i.e., >=2
Individual, to obtain enough luminous fluxes, and both correspond, now, and reflector element 30 is a curved mirror 310, multiple described glimmering
Close-packed arrays of photosphere 210 and positioned at the focal point of the curved mirror 310, the laser beam projects that laser source unit 11 is launched are to above-mentioned
The central area of the wavelength conversion unit 20 of multiple arrangement forms of fluorescence coating 210, specifically, multiple fluorescence coatings 210 (or LED light
Source 122) focal point of curved mirror 310 can be arranged in along straight line or otherwise, of course for illumination uniformity is improved, arrange
Arrange the figure formed preferably axisymmetricly or centrosymmetric image.
As shown in figure 5, LED/light source 122 and fluorescence coating 210 are respectively equipped with three, along straight line close-packed arrays in curved mirror 310
Focal point, wherein second fluorescence coating 210 is located at the central area of wavelength conversion unit 20, therefore laser beam projects are to second
Central area (as shown in Black oval region in Fig. 5) place of the individual upper surface of fluorescence coating 210 excites the phosphor in the region
Material, so as to improve in the illumination of the central area 70 of optical field distribution, the present embodiment, a pair of LED/light source 122 and fluorescence coating 210 1
Should, i.e., each lower section of fluorescence coating 20 one LED/light source 122 of correspondence, each lower section of LED/light source 122 passes through reflecting interface 123
On the substrate 121, and the only one of which of substrate 121, substrate 121 is provided with multiple electrodes, can be each LED/light source
122 power simultaneously.Furthermore, it is necessary to which explanation, fluorescence coating 210 can individually be detachably secured to corresponding LED/light source 122
On, fixed mode be the same as Example 1 in order to change, or multiple LED/light sources 122 and substrate 121 is packaged together, together
When multiple fluorescence coatings 210 are encapsulated into an entirety, then by two modules after encapsulation according to it is one-to-one require into
Row, which is installed, to be fixed, naturally it is also possible to installed using other manner, as long as ensureing a pair of LED/light source 122 and fluorescence coating 210 1
Should, and relative position is constant in use.
Embodiment 3
As different from Example 2, in the present embodiment, LED/light source 122 and fluorescence coating 210 be respectively equipped with it is multiple, i.e., >=2
It is individual, and fluorescence coating 210 quantity than LED/light source more than 122 one, multiple close-packed arrays of fluorescence coating 210 and positioned at the song
The focal point of face mirror 310, laser beam projects are extremely located at the upper surface of fluorescence coating 210 in the middle of multiple fluorescence coatings 210 to improve light field
The illumination of central area 70, and the lower section of fluorescence coating 210 does not set LED/light source 122, but be directly arranged on substrate 121, can with this
To reduce the thermal resistance between fluorescence coating 210 and substrate 121, promote the radiating rate of fluorescence coating 210.
Embodiment 4
As different from Example 1, in the present embodiment, LED/light source 122 and fluorescence coating 210 are respectively equipped with 2n+1, and n is
>=1 natural number, and both one-to-one corresponding, now, reflector element 30 is spliced by multiple curved mirrors 310, each curved mirror
310 one focus of correspondence, the surface face type of curved mirror 310 can be parabola, ellipsoid or other curved surfaces herein, each described
Fluorescence coating 210 is located at the focal point of one curved mirror 310 of correspondence, herein, the quantity that can be with curved mirror 310 of fluorescence coating 210
Identical, both correspond, and can also be less than the quantity of curved mirror 310, multiple fluorescence coatings 210 can be along straight line or other
Mode gap arrangement, of course for improving illumination uniformity, the figure of arrangement form is preferably axisymmetricly or centrosymmetric image.
Laser beam projects are extremely located at the upper surface of fluorescence coating 210 in the middle of multiple fluorescence coatings 210 to improve the central area 70 of optical field distribution
Illumination.In the present embodiment, due to multiple gap arrangements of fluorescence coating 210, and laser beam need to project wavelength conversion unit 20
Central area, therefore fluorescence coating 210 need to set odd number, so as to ensure there is a fluorescence coating 210 to be located at center.
As shown in fig. 6-7, LED/light source 122 and fluorescence coating 210 are respectively equipped with three, and reflector element 30 is by three curved mirrors
310 are spliced to form, i.e., the focal point of each curved mirror 310 one fluorescence coating 210 of correspondence, by correspondence fluorescence coating 210 send it is glimmering
Light is launched to form illumination light along parallel direction.Three fluorescence coatings 210 are arranged along rectilinear clearance in Fig. 6, wherein second glimmering
Photosphere 210 is located at the central area of wavelength conversion unit 20, therefore laser beam projects are into second upper surface of fluorescence coating 210
Heart district domain (as shown in Black oval region in Fig. 5) place excites the fluorescent material in the region, so as to improve light field center
In the illumination in domain 70, the present embodiment, LED/light source 122 and fluorescence coating 210 are corresponded, i.e., each lower section of fluorescence coating 210 correspondence one
Individual LED/light source 122, each lower section of LED/light source 122 is located on the substrate 121 by reflecting interface 123, and substrate 121
Only one of which, substrate 121 is provided with multiple electrodes, can simultaneously be powered for each LED/light source 122.Fluorescence coating 210 and LED light
Mounting means be the same as Example 2 between source 122.
Embodiment 5
As different from Example 4, in the present embodiment, LED/light source 122 and fluorescence coating 210 be respectively equipped with it is multiple, i.e., >=2
It is individual, and fluorescence coating 210 quantity than LED/light source more than 122 one, reflector element 30 is spliced by multiple curved mirrors 310, each
One focus of correspondence of curved mirror 310, each fluorescence coating 210 is located at the focal point of one curved mirror 310 of correspondence.It is multiple described
Can be along straight line or other manner gap arrangement, of course for raising illumination uniformity, the figure of arrangement form between fluorescence coating 210
Shape is preferably axisymmetricly or centrosymmetric image.Laser beam projects are extremely located at the upper table of fluorescence coating 210 in the middle of multiple fluorescence coatings 210
Face is to improve the illumination of light field central area 70, and the lower section of fluorescence coating 210 does not set LED/light source 122, but is directly arranged in substrate
On 121, the thermal resistance between fluorescence coating 210 and substrate 121 can be reduced with this, promote the radiating rate of fluorescence coating 210.
Embodiment 6
From unlike embodiment 1~5, in the present embodiment, between the laser beam and the wavelength conversion unit 20
Angle is 80~90 degree, preferably 90 degree, even if laser beam is projected on wavelength conversion unit 20 with 90 degree, improves laser beam
Energy accumulating, further improves the illumination of light field central area 70.
When reflector element 30 is curved mirror 310, because the angle between laser beam and reflector element 30 is close to 90 degree, and
Therefore there is certain angle with horizontal direction, focus that now only need to be by wavelength conversion unit 20 relative to the curved mirror 310 is rotated,
So that it is vertical with laser beam, of course for the utilization rate for improving LED light source unit 12, by LED light source unit 12 and wavelength
Converting unit 20 rotates together, keep both relative position it is constant, i.e., LED/light source 122 be located at correspondence fluorescence coating 210 just under
Side, now fully contacted between heat dissipation base 40 for convenience, it is ensured that radiating effect, can adjust substrate 121 shape or
Increase the heat conduction member that is adapted of shape below substrate 121, can also adaptive change heat dissipation base 40 shape, such as Fig. 8
It show the schematic diagram of one way in which.
Embodiment 7
As shown in figure 9, provide a kind of illuminator in the present embodiment, including light-emitting device described above and positioned at described
Baffle plate 50 and projecting lens 60 at light-emitting device light-emitting window, wherein, the reflector element 30 is in ellipsoid structure, can be rotation
Turn ellipsoid structure, or ellipsoid of deformation face structure, described ellipsoid of deformation face meets following condition：To include central optical axis
The cross section curve that plane goes to cut obtained by the curved surface in ellipsoid of deformation face is all a part for elliptic curve, but by the flat of different angles
Face intercepts the not fully identical of resulting elliptic curve, that is, without rotational symmetry.Wherein described wavelength convert
Unit 20 is located at focal point of the reflector element 30 close to inner side, and baffle plate 50 is located at the reflector element 30 close to outside
Focal point, inner side and outer side herein is that for light-emitting window, the light so from the outgoing of wavelength conversion unit 20 is through anti-
The reflection of unit 30 is penetrated, a convergence hot spot substantially can be formed at baffle plate 50, the hot spot passes through the throwing of projecting lens 60 again
Penetrate and form the picture of hot spot in far field, this is a typical projection Vehicle lamp structure.The effect of baffle plate 50 is to produce dipped beam
During with light distribution, clearly "cut-off"line is obtained by shield portions rim ray.And when forming far lighting, baffle plate 50
It is removed, allows whole light all to project away and enough luminous flux and illumination are produced with this.Illuminator of the present invention, when
When needing to improve the illumination of light field central area 70, open lasing light emitter 110 and carry out the central area of excitation wavelength converting unit 20
Fluorescence coating, makes the requirement that it meets far lighting with this brightness for improving light field central area 70, when center light field central area
When 70 illumination is enough, lasing light emitter 110 is closed, only allows LED/light source 122 to be lighted.In this way, the distance-light of compact conformation can be obtained
The headlamp light source system of one.And by controlling the driving current of lasing light emitter 110 and LED/light source 122, can accurately it adjust
Light field central area 70 and the illumination of fringe region, can also realize the purpose of energy-conservation on the basis of lighting criteria is met.
In summary, the present invention is provided light-emitting device and illuminator, compared with prior art, have the advantage that：
(1) by setting laser source unit 11 and LED light source unit 12, wherein laser source unit 11 in light unit is excited
The laser beam of transmitting has collimation good, the characteristic that energy is concentrated, and the spot light of super brightness can be formed, so as to improve distance light
The center illumination of field, meets the demand of distance light；And the beam spread angle that LED light source unit 12 is sent is big, meet dipped beam
Demand；
(2) by opening or closing laser source unit 11, so that the free switching between distance light and dipped beam is realized, behaviour
Make simple, it is easy to use；
(3) by the cooperation of laser source unit 11 and LED light source unit 12, light field central area 70 and side can accurately be adjusted
The illumination in edge region, can be achieved to be met the light distribution of automobile far lighting standard with minimum power, meet illumination mark
The purpose of energy-conservation is reached while quasi-；
(4) simple and compact for structure, small volume of the invention, cost bottom, convenient disassembly, stability is good, and reality is met conscientiously
The need for.
Although embodiments of the present invention are illustrated in specification, these embodiments are intended only as prompting,
It should not limit protection scope of the present invention.It is equal that various omission, substitution, and alteration are carried out without departing from the spirit and scope of the present invention
Should be comprising within the scope of the present invention.
Claims (10)
1. a kind of light-emitting device, it is characterised in that including：Light unit, wavelength conversion unit (20) and reflector element (30) are excited,
It is described to excite light unit to include laser source unit (11) and LED light source unit (12), the position of the wavelength conversion unit (20)
Focus with the reflector element (30) is corresponding, the laser beam and LED light source unit (12) of laser source unit (11) transmitting
The light beam of transmitting is projected on the wavelength conversion unit (20) and inspires fluorescence respectively, and the fluorescence is single by the reflection
Assigned direction outgoing is pressed after first (30) reflection.
2. light-emitting device according to claim 1, it is characterised in that the laser source unit (11) and wavelength conversion unit
(20) both sides of the reflector element (30) are divided into, the reflector element (30), which is provided with, to be used for through the logical of the laser beam
Light portion (31).
3. light-emitting device according to claim 2, it is characterised in that the position of the thang-kng portion (31) and the laser beam
Position correspondence, the angle of the laser beam and the thang-kng portion (31) is 80~90 degree.
4. light-emitting device according to claim 3, it is characterised in that the laser source unit (11) includes one or more
Lasing light emitter (110), the thang-kng portion (31) is provided with one or more.
5. light-emitting device according to claim 2, it is characterised in that it is single that the laser source unit (11) also includes collimation
Member, beam angle change the combination of one or both of unit (111), focusing unit (112) and the above, the collimation list
Member, beam angle change unit (111), focusing unit (112) and set along light path.
6. light-emitting device according to claim 2, it is characterised in that the LED light source unit (12) includes substrate (121)
With at least one LED/light source (122), the wavelength conversion unit (20) includes at least one fluorescence coating (210), the fluorescence coating
(210) on the LED/light source (122) or on the substrate (121), correspondence above each LED/light source (122)
One fluorescence coating (210), lower section is on the substrate (121).
7. light-emitting device according to claim 6, it is characterised in that the reflector element (30) is curved mirror (310), institute
State the focal point that wavelength conversion unit (20) is located at the curved mirror (310), the laser beam projects to the wavelength convert list
The central area of first (20) upper surface, the LED/light source (122) and fluorescence coating (210) are respectively equipped with least one, work as LED light
Source (122) and when being multiple with the quantity of fluorescence coating (210), multiple fluorescence coating (210) close-packed arrays and positioned at described
One fluorescence coating (210) of correspondence, the LED/light source above the focal point of curved mirror (310), each LED/light source (122)
(122) reflecting interface (123) is provided between the substrate (121).
8. light-emitting device according to claim 6, it is characterised in that the reflector element (30) is by multiple curved mirrors
(310) it is spliced, the wavelength conversion unit (20) is located at the focal point of the curved mirror (310), the laser beam projects
To the central area of the wavelength conversion unit (20) upper surface, the LED/light source (122) and fluorescence coating (210) are respectively equipped with
2n+1, n are >=1 natural number, and multiple fluorescence coatings (210) gap distribution, and each fluorescence coating (210) is located at pair
The focal point of a curved mirror (310) is answered, one fluorescence coating (210) of correspondence, the LED above each LED/light source (122)
Reflecting interface (123) is provided between light source (122) and the substrate (121).
9. light-emitting device according to claim 6, it is characterised in that be additionally provided with heat dissipation base below the substrate (121)
(40)。
10. a kind of illuminator, it is characterised in that including the light-emitting device as described in any one of claim 1~9, Yi Jiwei
Baffle plate (50) and projecting lens (60) at the light-emitting device light-emitting window, the reflector element (30) are in ellipsoid structure,
The wavelength conversion unit (20) is located at focal point of the reflector element (30) close to inner side, and the baffle plate (50) is located at described
Focal point of the reflector element (30) close to outside.
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| CN201710433894.7A CN107036033B (en) | 2017-06-09 | 2017-06-09 | Light emitting device and lighting system |
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| CN107504428A (en) * | 2017-08-31 | 2017-12-22 | 深圳市晶衍科技有限公司 | A kind of car headlamp based on LASER Light Source |
| CN107940390A (en) * | 2017-12-21 | 2018-04-20 | 超视界激光科技（苏州）有限公司 | The vehicle head lamp of distance-light one |
| CN109737354A (en) * | 2019-03-01 | 2019-05-10 | 苏州晶清光电科技有限公司 | The headlamp of distance-light one |
| CN109737353A (en) * | 2019-03-01 | 2019-05-10 | 苏州晶清光电科技有限公司 | A kind of light source module group of high brightness |
| CN110360473A (en) * | 2019-08-20 | 2019-10-22 | 苏州晶清光电科技有限公司 | A kind of laser lighting lamp |
| CN110454693A (en) * | 2019-08-14 | 2019-11-15 | 浙江比肯科技有限公司 | A kind of LED luminescence unit using laser enhancing |
| WO2021012883A1 (en) * | 2019-07-19 | 2021-01-28 | 深圳市绎立锐光科技开发有限公司 | Illumination device and automobile headlight |
| WO2021109241A1 (en) * | 2019-12-04 | 2021-06-10 | 广州光联电子科技有限公司 | Automobile headlamp |
| CN113188058A (en) * | 2021-04-30 | 2021-07-30 | 广州旭福光电科技有限公司 | Lighting device with laser/LED chip co-excited to emit light, method and application |
| CN113671780A (en) * | 2021-08-31 | 2021-11-19 | 青岛海信激光显示股份有限公司 | Light emitting unit, light source system, and laser projection apparatus |
| CN114576574A (en) * | 2020-11-18 | 2022-06-03 | 杨毅 | Light-emitting device and lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107504428A (en) * | 2017-08-31 | 2017-12-22 | 深圳市晶衍科技有限公司 | A kind of car headlamp based on LASER Light Source |
| CN107940390A (en) * | 2017-12-21 | 2018-04-20 | 超视界激光科技（苏州）有限公司 | The vehicle head lamp of distance-light one |
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| CN109737353A (en) * | 2019-03-01 | 2019-05-10 | 苏州晶清光电科技有限公司 | A kind of light source module group of high brightness |
| WO2021012883A1 (en) * | 2019-07-19 | 2021-01-28 | 深圳市绎立锐光科技开发有限公司 | Illumination device and automobile headlight |
| CN110454693A (en) * | 2019-08-14 | 2019-11-15 | 浙江比肯科技有限公司 | A kind of LED luminescence unit using laser enhancing |
| CN110360473A (en) * | 2019-08-20 | 2019-10-22 | 苏州晶清光电科技有限公司 | A kind of laser lighting lamp |
| WO2021109241A1 (en) * | 2019-12-04 | 2021-06-10 | 广州光联电子科技有限公司 | Automobile headlamp |
| CN114576574A (en) * | 2020-11-18 | 2022-06-03 | 杨毅 | Light-emitting device and lamp |
| CN113188058A (en) * | 2021-04-30 | 2021-07-30 | 广州旭福光电科技有限公司 | Lighting device with laser/LED chip co-excited to emit light, method and application |
| CN113671780A (en) * | 2021-08-31 | 2021-11-19 | 青岛海信激光显示股份有限公司 | Light emitting unit, light source system, and laser projection apparatus |
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