CN206786554U - Light-emitting device and illuminator - Google Patents
Light-emitting device and illuminator Download PDFInfo
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- CN206786554U CN206786554U CN201720672441.5U CN201720672441U CN206786554U CN 206786554 U CN206786554 U CN 206786554U CN 201720672441 U CN201720672441 U CN 201720672441U CN 206786554 U CN206786554 U CN 206786554U
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Abstract
The utility model 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 emitted after reflector element reflects by assigned direction.For the utility model by setting laser source unit in light unit is excited, its laser beam launched has the characteristic that collimation is good, and energy is concentrated, and forms the spot light of super brightness, so as to improve the center illumination of distance light field, meets the demand of distance light field；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, realizes the light distribution that automobile far lighting standard is met with the power of minimum, the effect of energy-conservation is reached while lighting criteria is met.
Description
Technical field
It the utility model is related 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
Effect, energy-conservation, environmental protection, cost is low and the advantages that long lifespan, is just progressively substituting traditional incandescent lamp and electricity-saving lamp, is turning into a kind of logical
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
Luminous intensity distribution through the collection of car light reflector and back-end optical system (including baffle plate, lens etc.), 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, the problem of center illumination is substantially inadequate generally be present, 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.
Utility model content
The utility model is directed to above-mentioned technical problem, there is provided one kind not only has far and near optical field distribution, meets distance light field
Center illumination, and light-emitting device simple in construction and illuminator.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of light-emitting device, including：Exciting 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 ripple
The position of long converting unit is corresponding with the focus of the reflector element, the laser beam and LED light source of the laser source unit transmitting
The light beam of unit transmitting is projected on the wavelength conversion unit and inspires fluorescence respectively, and the fluorescence is single by the reflection
It is emitted after member reflection by assigned direction.
Further, the position correspondence of the LED light source unit and 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-
Penetrate unit and be provided with the thang-kng portion being used for 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
With the position correspondence of the laser beam.
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 is 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
The corresponding fluorescence coating in top, 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,
To the central area of the wavelength conversion unit upper surface, the LED light source and fluorescence coating are respectively equipped with the laser beam projects
It is at least one, when the quantity of LED light source and fluorescence coating is multiple, multiple fluorescence coating close-packed arrays and it is located at the song
The focal point of face mirror, each corresponding fluorescence coating in LED light source top, 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, each fluorescence coating are located at
The focal point of a corresponding curved mirror, each corresponding fluorescence coating in LED light source top, the LED light source and the lining
Reflecting interface is provided between bottom.
Further, it is additionally provided with heat dissipation base below the substrate.
The utility model additionally provides a kind of illuminator, including light-emitting device as described above, and positioned at the hair
Baffle plate and projecting lens at electro-optical device light-emitting window, the reflector element are in ellipsoid structure, and the wavelength conversion unit is located at
For the reflector element close to the focal point of inner side, the baffle plate is located at focal point of the reflector element close to outside.
Light-emitting device provided by the utility model and illuminator, compared with prior art, there is 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 the characteristic that collimation is good, and energy is concentrated, and the spot light of super brightness can be formed, so as to improve in distance light field
Degree of understanding without being told, meet the demand of distance light field；And the beam spread angle that LED light source unit is sent is big, meet the demand of dipped beam field；
(2) by opening or closing laser source unit, so as to realize the free switching between distance light field and dipped beam field, 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 the power of minimum, meeting the same of lighting criteria
When reach the effect of energy-conservation；
(4) the utility model is simple and compact for structure, small volume, and cost bottom, convenient disassembly, stability is good, meets conscientiously
The needs of practical application.
Brief description of the drawings
Fig. 1 is the structural representation of light-emitting device in the utility model embodiment 1；
Fig. 2 is the structural representation of fluorescence coating and LED light source unit in the utility model embodiment 1；
Fig. 3 is the light field schematic diagram that the light-emitting device in the utility model embodiment 1 is formed；
Fig. 4 be in Fig. 3 laser beam projects to the schematic diagram of fluorescence coating；
Fig. 5 is the medium wavelength converting unit one of which schematic diagram of the utility model embodiment 2；
Fig. 6 is the medium wavelength converting unit one of which schematic diagram of the utility model embodiment 4；
Fig. 7 is the one of which schematic diagram of reflector element in the utility model embodiment 4；
Fig. 8 is the one of which schematic diagram of reflector element in the utility model embodiment 6；
Fig. 9 is the one of which structural representation of illuminator in the utility model embodiment 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 utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
As shown in fig. 1, the utility model provides a kind of light-emitting device, including：Excite light unit, wavelength conversion unit 20
It is described to excite light unit to include laser source unit 11 and LED light source unit 12, the wavelength conversion unit 20 with reflector element 30
Position it is 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
The light beam of transmitting is projected on the wavelength conversion unit 20 and inspires fluorescence respectively, and the fluorescence passes through the reflector element
It is emitted after 30 reflections by assigned direction, the light beam advanced with formation in defined solid angle, due to wavelength in the utility model
Converting unit 20 is located at the focal point of the reflector element 30, therefore the fluorescence inspired on wavelength conversion unit 20 is through described anti-
Penetrate after unit 30 reflects and form parallel light emergence, as parallel illumination light.Laser source unit 11 is set in light unit is excited
With LED light source unit 12, the laser beam that wherein laser source unit 11 is launched has that collimation is good, the characteristic that energy is concentrated, can be with
The spot light of super brightness is formed, so as to improve the center illumination of distance light field；And the beam spread angle that LED light source unit 12 is sent
Degree is big, meets the requirement of dipped beam field, therefore by opening or closing laser source unit 11, can realize distance light field and dipped beam field it
Between free switching, it is easy to use.
The light-emitting device and illuminator provided in the utility model is applicable to stage lighting, headlight for vehicles, Projection Display
Etc. the application field for needing super brightness light source, it is described below herein in by taking car lighting lamp (referring mainly to headlamp) as an example, but
It is not restricted.
Continue referring to Fig. 1, the position correspondence of the LED light source unit 12 and 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 reduce 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, improve 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 are provided with the thang-kng portion 31 being used for 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 for the permeable laser beam that reflector element 30 integrally forms, 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 inspires through wavelength conversion unit 20, i.e., white
Coloured light, it can so prevent from leaking from thang-kng portion 31 through the fluorescence that wavelength conversion unit 20 is emitted.Thang-kng portion 31 is used to swash
Beam direction wavelength conversion unit 20, it can be that ellipse, circle or other shapes, 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
To the structure of laser source unit 11 and position progress flexible design and it is conveniently replaceable according to the steric requirements used, swashs 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, it so can further simplify the structure of light-emitting device.
Preferably, the angle between the laser beam and the reflector element 30 is 80~90 °, the position in the thang-kng portion 31
Put the position correspondence with the laser beam, i.e. laser beam and the angle in 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 improve laser source unit 10, reflection
Compact in design between unit 30, reduce space-consuming.
Preferably, 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 select as needed 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, working as lasing light emitter 110
At only one, 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 there was only one, 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 be provided with multiple, be corresponded with lasing light emitter 110, and each thang-kng portion 31 is used for will swashing of launching of corresponding lasing light emitter 110
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, improves service life and stability.It is used herein as
Semiconductor laser can be element on 1 chip with 1 luminous point or on 1 chip with more
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 changes
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, and generally use collimation is saturating
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 changes unit 111 and is used to enter horizontal deflection to laser beam, to change its direct of travel, so that whole system
Compact-sized, beam angle, which changes unit 111, can use plane mirror or curved reflector, can also using metal film or
Deielectric-coating etc., identical effect can be reached, 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, collimation unit, beam angle has been used 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, can select to collimate as needed
Unit, beam angle change a kind of exclusive use in unit 111, focusing unit 112, or select two or three therein
Use is combined, while the position of three can need to be arranged according to using space, as long as ensureing that laser beam can pass through
Thang-kng portion 31 is projected on wavelength conversion unit 20.
Preferably, 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 corresponding fluorescence coating 210 in the top of LED light source 122, 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 there is both sides to act on, and on the one hand by the conduction downwards of heat caused by LED light source 122, on the other hand be 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, it is integrated on a chip, by the electricity input spontaneous radiation of substrate 121 and outgoing beam, i.e. exciting light, in the exciting light
A part transmit upwards and enter fluorescence coating 210, excite fluorescence portion therein to produce fluorescence, another part transmits 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, improve LED light source 122
Utilization rate.
In the present embodiment, fluorescence coating 210 is located at the top of LED light source 122, is on the one hand used for reception and is emitted from LED light source 122
Exciting light so that produce the different stimulated light of wavelength, while fluorescence coating 210 also receive carry out self-excitation light source 110 caused by laser 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
Ensure that the fluorescence that fluorescence coating 210 exports almost all is emitted after the reflection of reflector element 30, 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,
Meets the needs of 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 does not contact 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, preferably clear is high, heat resistance is high material, 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.
The exciting light that fluorescence coating 210 can receive to export from LED light source 122 excites, 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 for having prescribed limit colourity.
Therefore, the fluorophor contained in fluorescence coating 210 will be selected in a manner of illumination light is turned into white, and one of which is preferred
Scheme is：LED light source 122 exports 405nm (bluish violet) or 450nm (blueness) exciting light, while lasing light emitter 110 also exports
405nm (bluish violet) or 450nm (blueness) exciting light, and comprise at least to have in fluorescence coating 210 and absorb above-mentioned exciting light and incite 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, from LED light source 122 be emitted exciting light wavelength and from lasing light emitter 110 be emitted laser wavelength 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, is formed after the reflection of reflector element 30 in far field
Required optical field distribution.Preferably, 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 component of plating 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 it need to meet following condition：The parabola is set to turn round institute's shape including at least 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, i.e. the fluorescence coating 210 is located at curved mirror
310 focal point, to ensure to be emitted in the horizontal direction after the reflection of curved mirror 310 from the fluorescence that fluorescence coating 210 is emitted.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 the problem of irradiation distance is not remote enough, therefore the utility model is in the feelings of the normal luminous of LED light source 122
Under condition, 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, makes its satisfaction
The application demand of automobile far lighting.In addition, when LED light source 122 is without lighting, as long as the power of adjustment incident laser,
Fluorescence coating 210 can be excited to produce sufficiently strong stimulated light to meet the needs of automobile far lighting.
It is illustrated in figure 3 the schematic diagram that the utility model light-emitting device is applied to automobile far lighting.Automobile distance light is shone
For bright, required optical field distribution approximate ellipsoidal, when only LED light source 122, the optical field distribution and LED light source that are formed
Following mapping relations between 122 light-emitting area be present：The light of light field fringe region 71 corresponds to the marginal portion of LED light source 122
The light of outgoing, the light of light field central area 70 correspond to the light of the core of LED light source 122 outgoing, and existing LED light
In application of the source 122 as automobile far lighting light source, because the illumination of the core of LED light source 122 is inadequate, so as to cause light
Field central area 70 illumination deficiency and irradiation distance are not remote enough, therefore need to only focus the laser beam into the center of fluorescence coating 210
Region can improve the illumination of light field central area 70 (as shown in the Black oval region in Fig. 3), as shown in Figure 4.Now,
The brightness of fluorescence coating 210 is uneven, i.e. the brightness of central area is high, and the brightness of fringe region is low, so can be with most
Small power is met the light distribution of automobile far lighting standard, and energy consumption is low.
Continue referring to Fig. 1, the light-emitting device in the utility model also includes the heat dissipation base located at the lower section of substrate 121
40.Heat dissipation base 40 is the supporting member of LED light source unit 12, and its effect is can be expeditiously by LED light source unit 12
The export downwards of caused heat, 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, and now, 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 the illumination of the central area 70 of optical field distribution, in the present embodiment, a pair of LED light source 122 and fluorescence coating 210 1
Should, i.e., each corresponding LED light source 122 in the lower section of fluorescence coating 20, each lower section of LED light source 122 passes through reflecting interface 123
On the substrate 121, and substrate 121 only has one, and substrate 121 is provided with multiple electrodes, can be each LED light source
122 power simultaneously.Furthermore, it is necessary to explanation, fluorescence coating 210 can individually be detachably secured to corresponding LED light source 122
On, fixed mode is with embodiment 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 installation is fixed, naturally it is also possible to is installed using other manner, as long as ensureing LED light source 122 and fluorescence coating 210 1 a pair
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 the quantity of fluorescence coating 210 is than LED light source more than 122 one, multiple close-packed arrays of fluorescence coating 210 and it is located at the song
The focal point of face mirror 310, laser beam projects are extremely located at the upper surface of fluorescence coating 210 among 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 correspond, now, reflector element 30 is spliced by multiple curved mirrors 310, each curved mirror
A 310 corresponding focuses, 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 a corresponding curved mirror 310, herein, fluorescence coating 210 can be with the quantity of curved mirror 310
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 among 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 to have 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 corresponding fluorescence coating 210 of focal point of each curved mirror 310, corresponding fluorescence coating 210 are sent glimmering
Light is launched to form illumination light along parallel direction.Three fluorescence coatings 210 arrange 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
The illumination in domain 70, in the present embodiment, LED light source 122 and fluorescence coating 210 correspond, i.e., each lower section of fluorescence coating 210 corresponding 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, substrate 121 is provided with multiple electrodes, can be that each LED light source 122 is powered simultaneously.Fluorescence coating 210 and LED light
Mounting means between source 122 is the same as embodiment 2.
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 the quantity of fluorescence coating 210, than LED light source more than 122 one, reflector element 30 is spliced by multiple curved mirrors 310, each
The corresponding focus of curved mirror 310, each fluorescence coating 210 are located at the focal point of a corresponding curved mirror 310.It is multiple described
Can be along straight line or other means gap arrangement, of course for raising illumination uniformity, the figure of arrangement form between fluorescence coating 210
Shape is preferably axisymmetricly or centrosymmetric image.Fluorescence coating 210 upper table of the laser beam projects extremely among 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, thermal resistance between fluorescence coating 210 and substrate 121 can be reduced with this, promote the radiating rate of fluorescence coating 210.
Embodiment 6
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 improve 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 certain angle be present with horizontal direction, now focus of the wavelength conversion unit 20 relative to the curved mirror 310 need to only be 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, keeps both relative positions constant, i.e., LED light source 122 be located at corresponding fluorescence coating 210 just under
Side, now for convenience fully contacted between heat dissipation base 40, ensure 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 angle
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 for light-emitting window, so from the light that wavelength conversion unit 20 is emitted 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 fluxes and illumination are produced with this.Illumination system described in the utility model
System, when needing to improve the illumination of light field central area 70, open lasing light emitter 110 and come the central area of excitation wavelength converting unit 20
The fluorescence coating at place, it is set to meet the requirement of far lighting with this brightness for improving light field central area 70, when center light field center
When the illumination in region 70 is enough, lasing light emitter 110 is closed, only allows LED light source 122 to be lighted.In this way, it can obtain compact-sized remote
The headlamp light source system of dipped beam one.And, can be accurate by controlling the driving current of lasing light emitter 110 and LED light source 122
The illumination of light field central area 70 and fringe region is adjusted, the mesh of energy-conservation can also be realized on the basis of lighting criteria is met
's.
In summary, light-emitting device provided by the utility model and illuminator, compared with prior art, have following excellent
Gesture：
(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 the characteristic that collimation is good, and energy is concentrated, and the spot light of super brightness can be formed, so as to improve distance light
The center illumination of field, meet the demand of distance light field；And the beam spread angle that LED light source unit 12 is sent is big, meet dipped beam field
Demand；
(2) by opening or closing laser source unit 11, so as to realize the free switching between distance light field and dipped beam field, behaviour
Make simply, 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
It the illumination in edge region, can be achieved to be met the light distribution of automobile far lighting standard with the power of minimum, meeting illumination mark
Reach the purpose of energy-conservation while quasi-；
(4) the utility model is simple and compact for structure, small volume, and cost bottom, convenient disassembly, stability is good, meets conscientiously
The needs of practical application.
Although embodiment of the present utility model is illustrated in specification, these embodiments are intended only as carrying
Show, should not limit the scope of protection of the utility model.Various omissions are carried out in the range of the utility model aims are not departed from, are put
Change and change should be included in the scope of protection of the utility model.
Claims (10)
- A kind of 1. 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) It is corresponding with the focus of the reflector element (30), 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 It is emitted after first (30) reflection by assigned direction.
- 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) are 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, and the collimation is single Member, beam angle change unit (111), focusing unit (112) is 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) it is corresponding above each LED light source (122) on the LED light source (122) or on the substrate (121) 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 When the quantity of source (122) and fluorescence coating (210) is multiple, multiple fluorescence coating (210) close-packed arrays and it is located at the song The focal point of face mirror (310), each corresponding fluorescence coating (210) in LED light source (122) top, the LED light source (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, each fluorescence coating (210) positioned at pair The focal point of a curved mirror (310) is answered, a corresponding fluorescence coating (210), 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 positioned at described Focal point of the reflector element (30) close to outside.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672441.5U CN206786554U (en) | 2017-06-09 | 2017-06-09 | Light-emitting device and illuminator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672441.5U CN206786554U (en) | 2017-06-09 | 2017-06-09 | Light-emitting device and illuminator |
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| CN206786554U true CN206786554U (en) | 2017-12-22 |
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ID=60716988
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| CN201720672441.5U Active CN206786554U (en) | 2017-06-09 | 2017-06-09 | Light-emitting device and illuminator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668113A (en) * | 2019-03-01 | 2019-04-23 | 苏州晶清光电科技有限公司 | A kind of laser headlight of distance-light one |
| CN109695855A (en) * | 2018-12-24 | 2019-04-30 | 清华大学深圳研究生院 | A kind of laser and the integrated car headlamp of LED |
| CN111043563A (en) * | 2019-12-30 | 2020-04-21 | 上海市激光技术研究所 | Laser illumination structure and car light |
| 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 |
| CN113834038A (en) * | 2021-10-09 | 2021-12-24 | 湖南省峰度照明科技有限公司 | Lighting device and gun |
-
2017
- 2017-06-09 CN CN201720672441.5U patent/CN206786554U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695855A (en) * | 2018-12-24 | 2019-04-30 | 清华大学深圳研究生院 | A kind of laser and the integrated car headlamp of LED |
| CN109668113A (en) * | 2019-03-01 | 2019-04-23 | 苏州晶清光电科技有限公司 | A kind of laser headlight of distance-light one |
| 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 |
| CN111043563A (en) * | 2019-12-30 | 2020-04-21 | 上海市激光技术研究所 | Laser illumination structure and car light |
| CN113834038A (en) * | 2021-10-09 | 2021-12-24 | 湖南省峰度照明科技有限公司 | Lighting device and gun |
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