CN107208857B - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN107208857B CN107208857B CN201680009229.9A CN201680009229A CN107208857B CN 107208857 B CN107208857 B CN 107208857B CN 201680009229 A CN201680009229 A CN 201680009229A CN 107208857 B CN107208857 B CN 107208857B
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- light
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- fluorescent plate
- lighting device
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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
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
- Microscoopes, Condenser (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The object of the present invention is to provide a kind of lighting devices that can realize high output and miniaturization.The lighting device of the present invention is characterized in that, have the light-gathering lens and cricoid condenser of the fluorescent plate, configuration of reflection-type in front of the optical axis direction of the fluorescent plate, the condenser has the light radial openings of the outer diameter major diameter than the light-gathering lens, it is configured in such a way that the light radial openings are located in front of the optical axis direction of the fluorescent plate, the optically focused by the light reflection towards the direction other than the direction towards the light-gathering lens projected in light from the fluorescent plate；Excitation light from excitation light source is irradiated via the space part between above-mentioned condenser and above-mentioned light-gathering lens to above-mentioned fluorescent plate.
Description
Technical field
The present invention relates to lighting devices, more particularly, be related to having excitation light action decentralization penetrate fluorescence fluorescent plate,
It is used for the lighting device of searchlight etc..
Background technology
In the past, as lighting device, it is known to using laser as excitation light to fluorescent plate irradiation, make fluorescence from the fluorescent plate
Project, by the fluorescence from the fluorescent plate via speculum etc. structure from optical system to extraneous radiation (for example, referring to patent
Document 1).
Specifically, in patent document 1, a kind of lighting device is disclosed, as shown in fig. 6, multiple semiconductors will be come from
The excitation light of laser diode 71 is guide-lighting with optical fiber 73 respectively and irradiates, will be converted by the fluorescent plate 72 to the fluorescent plate of reflection-type 72
For the light radiation after fluorescence.In the luminaire, the light of multiple optical fiber 73 projects side section and is formed fiber optic bundle portion by boundling
74, in the fiber optic bundle portion 74, it is formed with the light ejecting end being made of the fibre end of multiple optical fiber 73.In addition, being filled in illumination
In setting, concave mirror 75 is configured in a manner of surrounding the excitation light light-receiving surface of fluorescent plate 72.Also, in concave mirror
Through hole 76 is formed on 75, it will be from the excitation light that the light ejecting end in fiber optic bundle portion 74 projects to fluorescent plate via the through hole 76
72 irradiations.
In figure 6,77 and 78 be lens, and 79 be speculum, and 22 be the substrate for being equipped with fluorescent plate 72.
In the lighting device of such structure, due to projecting light to external leaded light for autofluorescence plate in future 72
It is formed on optical system, that is, concave mirror 75 and is passed through for the excitation light for making excitation light pass through through passing by one's way, being specifically formed with
Through-hole 76, so the loss of the optical system is larger.Therefore, there is the problem of cannot obtaining sufficient fluorescence utilization ratio.Moreover,
Due to the fiber optic bundle portion 74 formed by boundling with multiple optical fiber 73, so while the problem of the scaling loss in the fiber optic bundle portion 74 and
There is the problem of limit, cannot also cope with the requirement of the high output of lighting device in recent years in terms of high output.
In addition, in the luminaire, since the excitation light from multiple semiconductor Laser devices 71 is used multiple light
Fibre 73 is guide-lighting, so many components are needed, so the problem of can not achieve miniaturization.
Look-ahead technique document Prior Art
Patent document
Patent document 1：Special open 2012-84276 bulletins
Invention content
The subject that the invention solves
The present invention is made based on above such situation, the purpose is to provide one kind can realize high output and
The lighting device of miniaturization.
For the means to solve the problem
The lighting device of the present invention is characterized in that having the fluorescent plate of reflection-type, configure in the optical axis side of the fluorescent plate
Light-gathering lens forwards and cricoid condenser, the condenser have the outer diameter major diameter than the light-gathering lens
Light radial openings configure in such a way that the light radial openings are located in front of the optical axis direction of the fluorescent plate, will come from the fluorescent plate
Project light in the light reflection towards the direction other than the direction towards the light-gathering lens and optically focused；From excitation light source
Excitation light is irradiated via the space part between above-mentioned condenser and above-mentioned light-gathering lens to above-mentioned fluorescent plate.
In the lighting device of the present invention, it is preferred that in the excitation light from above-mentioned excitation light source to above-mentioned fluorescent plate
In the light path of arrival, configured with so that above-mentioned excitation light is penetrated, will be from the fluorescence that above-mentioned fluorescent plate projects to towards the fluorescent plate
The fluorescent reflection optical component of direction reflection.
In the lighting device of the present invention, it is preferred that above-mentioned fluorescent reflection is configured with optical component in above-mentioned light path
, in region between above-mentioned fluorescent plate and above-mentioned light-gathering lens.
In the lighting device of the present invention of such structure, it is preferred that above-mentioned fluorescent reflection has with optical component
The tubular shape extended along the outer peripheral edge of above-mentioned light-gathering lens；Above-mentioned fluorescent reflection optical component, which is matched, to be set as, and keeps this glimmering
The outer peripheral edge of light reflection optical component is located at melatope and above-mentioned optically focused in the excitation light light-receiving surface for including above-mentioned fluorescent plate
The opening edge of the light radial openings of mirror and the inside of imaginary cone extended along the optical axis of the fluorescent plate, which uses up
The inner peripheral of department of the Chinese Academy of Sciences's part, which is located at, to be included the outer peripheral edge of the melatope and above-mentioned light-gathering lens and prolongs along the optical axis of the fluorescent plate
The outside for the imaginary cone stretched.
In addition, in the lighting device of the present invention, it is preferred that in front of the optical axis direction of above-mentioned condenser, be equipped with edge
The cricoid speculum that the opening edge of the light radial openings of the condenser extends；Above-mentioned fluorescent reflection is disposed in optical component
In region between the light radial openings and above-mentioned speculum of above-mentioned condenser in above-mentioned light path.
In the lighting device of the present invention of such structure, it is preferred that above-mentioned fluorescent reflection has with optical component
The tubular shape extended along the opening edge of above-mentioned smooth radial openings；Above-mentioned fluorescent reflection optical component, which is matched, to be set as, and keeps this glimmering
The inner peripheral of light reflection optical component is put positioned at the focal point and above-mentioned light for including above-mentioned condenser and above-mentioned light-gathering lens
The outside of imaginary cone penetrated the opening edge of opening and extended along the optical axis of above-mentioned fluorescent plate.
In the lighting device of the present invention, it is preferred that above-mentioned between above-mentioned fluorescent plate and above-mentioned light-gathering lens
In front of the optical axis direction of fluorescent reflection optical component, configured with the light diffusing member with fluorescence diffusivity.
The effect of invention
In the lighting device of the present invention, light-gathering lens and condenser are equipped with as the fluorescence for reflexive emitting in the future
The light concentrating components of the injection light optically focused of plate irradiate excitation light via the space part between the two light concentrating components to the fluorescent plate.
Therefore, for irradiating the optical system of excitation light to fluorescent plate and for will be outside from the injection light optically focused of the fluorescent plate
In the optical system of portion's leaded light, the degree of freedom of larger design can be obtained, so can be easily implemented the small of each optical system
Type.Furthermore it is possible to which the light that projects of autofluorescence plate in future captures simultaneously optically focused with high efficiency, to external leaded light.In turn, at two
Light concentrating components which in need not all be formed for make excitation light pass through excitation light through passing by one's way, thus without have due to formed
There is excitation light to generate light loss (fluorescence losses) through passing by one's way.In turn, since excitation light is by space propagation, so can obtain high
Light utilization ratio is encouraged, and the excitation luminous intensity of excitation light can be made to become larger.
Thus, lighting device according to the present invention can realize miniaturization by so that optical system is become smaller, in addition, energy
Access higher excitation light utilization ratio, and the excitation luminous intensity of excitation light can be made to become larger, additionally it is possible to future autofluorescence
The light that projects of plate is utilized with high efficiency, so high output can be realized.
In addition, in the lighting device of the present invention, it, can will be from fluorescent plate court by the way that fluorescent reflection optical component is arranged
It is reflected to the fluorescence of space part towards the fluorescent plate.Therefore, it is possible to inhibit not by light concentrating components optically focused as cannot utilize
Fluorescence generation, so high fluorescence utilization ratio can be obtained.As a result, it is possible to realize further high output.
It, can will be anti-from fluorescence by the way that light diffusing member is also arranged in the lighting device of the present invention of such structure
Penetrate the direction of travel change of the fluorescence reflected towards fluorescent plate with optical component.Therefore, it is possible to make by fluorescent reflection optical section
The fluorescence of part reflection is captured by light-gathering lens or condenser with high efficiency, and thus, it is possible to obtain higher fluorescence utilization ratio.
As a result, it is possible to further high output be realized, in addition, hope can be readily derived in the radiating light from lighting device
Tone light.
Description of the drawings
Fig. 1 is the definition graph for the embodiment for indicating the lighting device of the present invention.
Fig. 2 is in the state of by the lighting device of Fig. 1 from the optical axis direction rear of the fluorescent plate of reflection-type, indicates
The definition graph of the position relationship of multiple excitation light units and speculum.
Fig. 3 is the definition graph for another embodiment for indicating the lighting device of the present invention.
Fig. 4 is in the state of by the lighting device of Fig. 3 from the optical axis direction rear of the fluorescent plate of reflection-type, indicates
The definition graph of the position relationship of multiple excitation light units and speculum.
Fig. 5 is the definition graph of the major part for other another embodiments for indicating the lighting device of the present invention.
Fig. 6 is the definition graph for the embodiment for indicating previous lighting device.
Specific implementation mode
Hereinafter, being illustrated to the embodiment of the lighting device of the present invention.
Fig. 1 is the definition graph for the embodiment for indicating the lighting device of the present invention.In addition, Fig. 2 is by the illumination of Fig. 1
Device from the optical axis direction rear of the fluorescent plate of reflection-type in the state of, indicate it is multiple excitation light units and speculum positions
Set the definition graph of relationship.In the Fig. 2, the allocation position of multiple excitation light units 11 is by being located at each back side for encouraging light unit 11
Radiator fan 12 allocation position indicate.
The lighting device 10 is as shown in Figure 1, have：Fluorescence radiation component 20, the fluorescent plate 21 with reflection-type；And swash
Light irradiating means are encouraged, excitation light is irradiated to fluorescent plate 21.Also, the injection light of lighting device autofluorescence plate in 10 future 21 is via ring
The condensing optical system that the condenser 35 and light-gathering lens 31 of shape are constituted is to extraneous radiation.
Here, in the present invention, so-called " fluorescent plate of reflection-type " is that excitation light light-receiving surface and fluorescence outgoing plane are formed
Fluorescent plate on the same face.In addition, including excitation light while " the injection light of the fluorescent plate from reflection-type " includes fluorescence.
For fluorescence radiation component 20, generally flat fluorescent plate 21 is equipped on the surface of flat substrate 22.
In the example of the figure, the surface (right side in Fig. 1) of fluorescent plate 21 by as excitation light light-receiving surface also by conduct
Fluorescence outgoing plane.
Fluorescent plate 21 is made of generally flat fluorescence part, in the table of surface, that is, fluorescent plate 21 of the fluorescence part
On face, it is formed with periodical configuration made of being periodically arranged multiple protrusions (diagram is omitted).The periodical configuration is for example to exist
It by two-dimensional and periodic is arranged in the state that the protrusion of general conical shape (specifically taper or pyramidal) is intensive.
In addition, at the back side (left side in Fig. 1) of fluorescent plate 21, equipped with the optical reflection film being made of silver etc..In turn, in light
Joint element (diagram is omitted) is clipped between reflectance coating and substrate 22, and fluorescent plate 21 is bonded on substrate 22 by the joint element
On.From rejecting viewpoint, using soldering and silver-colored agglomerated material etc. as joint element.In addition, at the back side of substrate 22, configuration
Have such as the thermal component being made of the metal copper (diagram is omitted).
Here, for fluorescent plate 21, if it is considered that being used up by light-gathering lens 31, condenser 35 and aftermentioned fluorescent reflection
The efficiency of the capture for the fluorescence that department of the Chinese Academy of Sciences's part 45 carries out, then as the face of excitation light light-receiving surface and fluorescence outgoing plane (specifically, glimmering
The surface of tabula rasa 21) shape compared with square shape, more preferably round.
The fluorescence part for constituting fluorescent plate 21 contains fluorophor, is preferably made of the fluorophor of polycrystalline.It is specific and
Speech, the fluorescence part are to be made of fluorophor or are that the sintered body of the mixture by fluorophor and ceramic binder is constituted.
That is, fluorescence part is made of fluorophor.
Here, it in the sintered body of the mixture of the fluorophor and ceramic binder that are used as fluorescence part, uses
The aluminium oxide particles of nano-scale are as ceramic binder.Also, the sintered body is several by being mixed to 100 mass % of fluorophor
The ceramic binder of the mass of quality %~tens %, will the mixture squeeze after fire obtained from.
Constituting the fluorophor of the polycrystalline of fluorescence part can for example obtain as follows.First, by by base material, work
Property the pulverization process such as agent and the raw material ball mill of firing adjuvant etc., obtain ultra micron raw material particulate below.It connects
It, by the raw material the particulate such as forming of sliding casting, sintering.Then, each by implementing heat to obtained sintered body
To same sex pressure processing, the fluorophor that the porosity is, for example, 0.5% polycrystalline below is obtained.
As the concrete example for the fluorophor for constituting fluorescence part, YAG can be enumerated：Ce, YAG：Pr, YAG：Sm and LuAG：
Ce etc..In such fluorophor, the doping of activating agent is 0.5mol% or so.
In addition, the thickness of fluorescence part is from fluorescence conversion efficiency and rejecting viewpoint, preferably 0.05~2.0mm.
Substrate 22 have it is rejecting, use the alloy (W-Cu) of alloy (Mo-Cu) and tungsten and copper by copper, molybdenum and copper
Deng material constitute substrate.
In addition, substrate 22 according to rejecting viewpoint, is preferably equipped with surface and fluorescent plate 21 of fluorescent plate 21
The back side it is larger compared to size in length and breadth, there is larger area.
In addition, the thickness of substrate 22 is, for example, 0.5~1.0mm.
There are condensing optical system 35 two light concentrating components of light-gathering lens 31 and condenser, autofluorescence plate 21 in future to penetrate
Light extraction optically focused and to external guide-lighting.
Be made of two light concentrating components condensing optical system, from fluorescent plate 21 project in light towards condenser
35 light (specifically, towards light of the reflecting surface of condenser 35) is captured and optically focused by the condenser 35.In addition, carrying out autofluorescence
The light towards light-gathering lens 31 of plate 21 projected in light is captured and optically focused by the light-gathering lens 31.Therefore, even if including
Fluorescence in the injection light from fluorescent plate 21 is scattering light, also can by the injection light with high efficiency captures and reliably
Optically focused.As a result, in lighting device 10, can future autofluorescence plate 21 the light that projects utilized with high efficiency.
In addition, being made of two light concentrating components condensing optical system, other light concentrating components can not used and made
The size of the light radiated from lighting device 10 becomes minimum.Therefore, it is possible to easily control the radiating light from lighting device 10
Size, so can be by the lighting device 10 in various uses.
In Fig. 1, the light path of the light for projecting the reflective surface by condenser 35 in light of autofluorescence in future plate 21 is used
Dotted line L3 is indicated.
Light-gathering lens 31 are the convex lenses of the injection light optically focused for autofluorescence plate in future 21, in the optical axis of fluorescent plate 21
(right in Fig. 1) position is arranged opposite with the state left with the fluorescent plate 21 in front of direction.
In the example of figure, light-gathering lens 31 are discoid convex lenses, are had bigger than the size of fluorescent plate 21 outer
Diameter configures in such a way that its optical axis is consistent with the optical axis C of fluorescent plate 21.
In light-gathering lens 31, size (outer diameter) and with fluorescent plate 21 leave distance be based on lighting device 10 itself
Size etc., it is contemplated that with the size of fluorescent plate 21, the relationship of the type of condenser 35 and size etc. and suitably determine.
Condenser 35 is made of the annular concave surface mirror for being formed with light radial openings 37 in front end, in the condenser 35
On inner surface, it is formed with the reflecting surface of the injection light reflection of autofluorescence plate in future 21.The condenser 35 is to surround fluorescent plate 21
Mode configures, with the light towards the direction other than the direction towards light radial openings 37 of autofluorescence plate in future 21 projected in light
Along the optical axis C reflections of the fluorescent plate 21 and optically focused.That is, light radial openings 37 are located in front of the optical axis direction of fluorescent plate 21, it is glimmering
The position of rear end side (left end side in Fig. 1) of the configuration of tabula rasa 21 in the optically focused space of condenser 35.
As the concrete example for the annular concave surface mirror for constituting condenser 35, ellipse of revolution face mirror and the paraboloid of revolution can be enumerated
Mirror.In addition, so-called ellipse of revolution face mirror, is the mirror of the reflecting surface with the ellipse of revolution planar centered on its optical axis, it is another
Aspect, so-called rotating paraboloidal mirror are the mirrors of the reflecting surface with the rotary parabolic planar centered on its optical axis.
In the example of figure, condenser 35 be light radial openings 37 be round ellipse of revolution face mirror, with its optical axis with
The optical axis C of fluorescent plate 21 and the consistent mode of the optical axis of light-gathering lens 31 configure.In addition, the focal point of condenser 35 i.e. the 2nd
Focus is consistent with the focal point of light-gathering lens 31, and the focal point of condensing optical system is made of the focal point.In addition, in optically focused
The rear end (left end in Fig. 1) of mirror 35 is formed with the through hole 38 of round, in the middle position of the through hole 38 configured with glimmering
Tabula rasa 21.Also, fluorescent plate 21 is located in the 1st focus of condenser 35.In turn, in the optically focused space of condenser 35, with
Light-gathering lens 31 are configured at 37 close proximity of light radial openings.
Also, in condensing optical system, if the opening diameter of light radial openings 37 is than the outer diameter major diameter of light-gathering lens 31.
That is, setting opening diameter path of the outer diameter than light radial openings 37 of light-gathering lens 31.
Outer diameter major diameter by the opening diameters of light radial openings 37 than light-gathering lens 31, can future autofluorescence plate 21
Light condenser 35 and light-gathering lens 31 are projected to capture respectively and efficiently optically focused.Specifically, will can only come from glimmering
The light light-gathering lens 31 for being directed towards light radial openings 37 not via condenser 35 in the injection light of tabula rasa 21 are caught
It catches.That is, the reflected light of the reflecting surface from condenser 35 is enabled to be not incident in light-gathering lens 31.In addition, passing through light
The opening diameter of radial openings 37 is the outer diameter major diameter than light-gathering lens 31, as shown in Figure 1, can configure light-gathering lens 31
Into the optically focused space of condenser 35.Therefore, in lighting device 10, the optical axis direction (left side in Fig. 1 of fluorescent plate 21 can be made
Right direction) size become smaller, so can make lighting device 10 become it is small-sized.Moreover, the knot of excitation light incidence mechanism can be made
Structure becomes simple, so the degree of freedom of the design of lighting device 10 becomes larger, and can realize the further of lighting device 10
Miniaturization.
In the example of the figure, only autofluorescence in the future plate 21 of light-gathering lens 31 project in light towards towards condenser
The light optically focused in the direction other than the direction of 35 reflecting surface.
In addition, light-gathering lens 31 and condenser 35 are the state at least left at a part of place, by saturating in the light-gathering
The space formed between the outer peripheral edge of mirror 31 and the inner surface (reflecting surface) of condenser 35 constitutes space part 15.The space part 15
In in the light path that the excitation light from excitation light irradiating means is reached to fluorescent plate 21.That is, in the excitation light light of fluorescent plate 21
On face, via the illuminated excitation light from excitation light irradiating means of space part 15.
Opening edge 37A and light-gathering of the space part 15 preferably with the light radial openings 37 along condenser 35 are saturating
The tubular shape that the outer peripheral edge of mirror 31 extends.The tubular shape can also be interrupted in addition either continuous tubular shape
Tubular shape.
It is tubular shape by space part 15, excitation light can be made along opening edge 37A and light-gathering fluorescent plate 21
The outer peripheral edge of lens 31 is continuously or intermittently incident, so can obtain the uniform of illumination in the excitation light light-receiving surface of fluorescent plate 21
Property.Therefore, because excitation light will not be locally irradiated in a part for excitation light light-receiving surface, so excitation light can be made
Excitation luminous intensity becomes larger.
In the example of the figure, condenser 35 and light-gathering lens 31 are throughout the outer peripheral edge of light-gathering lens 31 and condenser
Leave to the complete cycle of 35 inner surface.Also, between the outer peripheral edge of light-gathering lens 31 and the inner surface of condenser 35, formed
There is the circular space part 15 that the outer peripheral edge in a manner of surrounding light-gathering lens 31 along light-gathering lens 31 extends.
Excitation light irradiating means have excitation light source, and the excitation light source is by multiple (being 4 in fig. 1 and fig. 2) excitation lights
Unit 11 is constituted.
Also, in encouraging light irradiating means, as shown in Figure 1, being preferably provided with cricoid speculum 41.
By being equipped with speculum 41, the excitation densities of excitation light can be made to be lower by the speculum 41.Therefore, it is possible to inhibit
The generation of luminance saturation on fluorescent plate 21, so high fluorescence conversion efficiency can be obtained in the fluorescent plate 21.In addition, logical
It crosses and is equipped with speculum 41, the degree of freedom of the allocation position of excitation light source (multiple excitation light units 11) becomes larger, thus lighting device
The degree of freedom of 10 design becomes larger.Therefore, as shown in Figure 1, can the position near condenser 35 be configured excitation light source side by side
It sets.Therefore, the size of the optical axis direction of fluorescent plate 21 can be made to become smaller in lighting device 10, so the lighting device can be made
10 become small-sized.Further, since the common cooling body of light source and fluorescent plate 21 can will be encouraged to cool down, so can realize
The further miniaturization of lighting device 10.
Multiple excitation light units 11 near the rear end part of condenser 35 position with across the condenser 35 by fluorescence
The mode that plate 21 surrounds is configured.
In addition, multiple excitation light units 11 are respectively configured as, make it that light emergence face 11A be encouraged to be located at and fluorescent plate 21
In the roughly the same plane of excitation light light-receiving surface or the traveling of excitation light parallel and to the arrival of speculum 41 is not by condenser 35
It hinders.
In the example of the figure, multiple excitation light units 11 are along the circumferential direction of the outer surface of condenser 35 equally spaced to match
It sets.In addition, multiple excitation light units 11 configure in such a way that its optical axis is parallel with the optical axis C of fluorescent plate 21 respectively.
In addition, in Fig. 1, the light path from the injection of excitation light unit 11, the light reflected by speculum 41 is indicated with solid line L1.
As excitation light source, as long as capableing of the excitation light of radiofluorescence plate 21, as a result, according to composition fluorescent plate 21
The type of fluorophor etc. and use the light source of the light for radiating wavelength appropriate.Specifically, for example using radiation wavelength 405~
The light source of the light of 465nm.
In addition, as excitation light unit 11, using the lasing light emitter etc. of such as semiconductor laser etc., but its form can also
It is to have the excitation light unit of 1 lasing light emitter, or can also be to have multiple lasing light emitters, in the optical axis of these multiple lasing light emitters
Excitation light unit made of configuration light-gathering lens in front of direction (with reference to Fig. 3).
Here, excitation light is not limited to carry out the light of self-excitation light source, can also be the light of LED and from being sealed with water
The light of the lamp of silver, xenon etc..In addition, utilizing as lamp or LED in the case where possessing the light source of width on radiating wavelength,
The wavelength of excitation light is from the region of the main radiation wavelength of the radiation such as lamp.But it's not limited to that in the present invention.
In the example of figure, multiple excitation light units 11 are made of laser diode cluster (LD clusters) respectively.This
Outside, on the back side (left side in Fig. 1) of multiple excitation light units 11, it is respectively equipped with radiator fan 12.
Speculum 41 is disposed in excitation light source (multiple excitation light units in a manner of opposed with excitation light source and fluorescent plate 21
And the optical axis direction front position of condenser 35 (the right position in Fig. 1) 11).In the speculum 41 and excitation light source and glimmering
On the opposed surface of tabula rasa 21, the reflecting surface of light reflection will be encouraged by being formed with.Also, speculum 41 has along condenser 35
The tubular shape that opening edge 37A extends.
The tubular shape of the speculum 41 can also be interrupted ring-type in addition either continuous tubular shape
Shape.Specifically, speculum 41 both can be single as shown in Figure 1, or can also be that multiple speculum elements do not have
There are gap or interval with annular arrangement.
In the example of the figure, speculum 41 is by being formed with the light radial openings of round at front end (left end in Fig. 1)
42, the rotating paraboloidal mirror for the through hole 43 that (right end in Fig. 1) is formed with round in rear end is constituted.The through hole 43 has
Than the internal diameter of the outer diameter major diameter of light-gathering lens 31.In addition, speculum 41 is with its optical axis side consistent with the optical axis C of fluorescent plate 21
Formula configures.
In addition, in lighting device 10, as shown in Figure 1, it is preferably provided with fluorescent reflection optical component 45, the fluorescence
Reflection makes excitation light penetrate with optical component 45, will be reflected from the fluorescence that fluorescent plate 21 is emitted to towards the direction of fluorescent plate 21
's.It is (following that fluorescent reflection optical component 45 configures the light path reached to fluorescent plate 21 in the excitation light from excitation light source
Also referred to as " excitating optical path ") on.
By being equipped with fluorescent reflection optical component 45, can future autofluorescence plate 21 project in light towards space part
15 fluorescence, i.e. towards the fluorescence in the direction other than the direction towards condensing optical system towards the fluorescent plate 21 reflect.Therefore,
It can inhibit the generation not by condensing optical system optically focused and as unavailable fluorescence.
Here, the fluorescence for being reflected by fluorescent reflection optical component 45 and reaching the surface of fluorescent plate 21 passes through by the surface
It reflects or to 21 incidence of fluorescent plate and by the optical reflection film at back side reflection etc., is projected again from the surface of fluorescent plate 21.
Fluorescent reflection is preferably with optical component 45 and is configured with the opposing surface of fluorescent plate 21.
The preferred concrete example of allocation position as fluorescent reflection optical component 45, can enumerate following (1) and
(2) region.
(1) as shown in Figure 1, in excitating optical path, region between fluorescent plate 21 and light-gathering lens 31 (following also referred to as
" optically focused space inner region ").
(2) shown in Fig. 3 as be described hereinafter, between in excitating optical path, condenser 35 light radial openings 37 and speculum 41
Region (below also referred to as " optically focused space exterior domain ").
In addition, fluorescent reflection with optical component 45 from the viewpoint of fluorescence light-gathering, preferably have as shown in Figure 1
The tubular shape extended along the outer peripheral edge of light-gathering lens 31 and the opening edge 37A of condenser 35.The tubular shape both can be with
It is continuous tubular shape, can also be interrupted tubular shape.Specifically, fluorescent reflection optical component 45 both can be as
It is single as shown in Figure 1, or can also be that multiple elements are very close to each other or interval is with annular arrangement.
In addition, preferably have will not will be from fluorescent plate 21 towards poly- for the tubular shape of fluorescent reflection fluorescence part 45
The fluorescence of light optical system is (specifically, the fluorescence towards light-gathering lens 31 and the reflecting surface towards condenser 35 is glimmering
Light) and the fluorescence that is projected from condensing optical system (specifically, the fluorescence that is projected from light-gathering lens 31 and from condenser
35 fluorescence projected) the such geomery of reflection.
Specifically, in the case where fluorescent reflection is configured with optical component 45 in the inner region of optically focused space, preferably
It is as shown in Figure 1, the outer peripheral edge 45A of the fluorescent reflection optical component 45 is located at the inside of imaginary cone S2, imaginary cone S
Including in excitation light light-receiving surface melatope and opening edge 37A and extend along the optical axis C of fluorescent plate 21.In addition, inner peripheral
45B is preferably as shown in Figure 1, positioned at the outside of imaginary cone S1, and imaginary cone S1 includes the light in excitation light light-receiving surface
The outer peripheral edge of axis point and light-gathering lens 31, and extend along the optical axis C of fluorescent plate 21.
On the other hand, in the case where fluorescent reflection is configured with optical component 45 in the exterior domain of optically focused space, preferably
Be shown in Fig. 3 as be described hereinafter, the inner peripheral 45B of fluorescent reflection optical component 45 be located at include condensing optical system optically focused
Point is with opening edge 37A and along the outside of the optical axis C of fluorescent plate 21 imaginary cones extended.
Here, the melatope in so-called excitation light light-receiving surface is the excitation light light-receiving surface i.e. fluorescent plate 21 of fluorescent plate 21
The intersection point on surface and the optical axis C of the fluorescent plate 21.
As fluorescent reflection optical component 45, wavelength selective reflection mirror etc. can be used.
In the example of the figure, as fluorescent reflection optical component 45, by being formed with circle at front end (left end in Fig. 1)
The light radial openings 46 of shape, be formed at rear end (right end in Fig. 1) round through hole 47 wavelength selectivity concave surface
Mirror is constituted.In the wavelength selectivity concave mirror, being formed on its inner surface makes excitation light penetrate, by the reflection of fluorescent reflection
Face.Also, wavelength selectivity concave mirror configures in such a way that its optical axis is consistent with the optical axis C of fluorescent plate 21.
In addition, in lighting device 10, in the case where being equipped with fluorescent reflection optical component 45, as shown in Figure 1, excellent
Choosing is provided with the light diffusing member 48 with fluorescent scattering ability.
The light diffusing member 48 between fluorescent plate 21 and light-gathering lens 31, in the fluorescent reflection optical component 45
(left in Fig. 1) is arranged opposite with fluorescent plate 21 in front of optical axis direction so that by from fluorescent reflection optical component 45
Reflected light is incident.Specifically, as shown in Figure 1, being located at fluorescent plate 21 and light-gathering lens in fluorescent reflection optical component 45
In the case of between 31, light diffusing member 48 is configured between fluorescent reflection optical component 45 and fluorescent plate 21.
In the example of the figure, the configuration of light diffusing member 48 is in fluorescent reflection between optical component 45 and fluorescent plate 21
Position near the fluorescent plate 21.
By being configured with light diffusing member 48, though fluorescent plate 21 in its structure for not having from the fluorescence of surface incidence
There is sufficient fluorescent scattering ability, also the fluorescence reflected by fluorescent reflection optical component 45 can be made fully to be scattered, becomes
More its direction of travel.Therefore, it is possible to make the light reflected by fluorescent reflection optical component 45 by condensing optical system with high effect
Rate captures.As a result, it is possible to realize further high output.
From the viewpoint of fluorescence utilization ratio, preferably having can make to come from fluorescent reflection optics light diffusing member 48
Shape and size (size in length and breadth) as all incidence of the reflected light of component 45.
Specifically, the shape about light diffusing member 48, if it is considered that light-gathering lens 31, condenser 35 and fluorescence are anti-
Penetrate the efficiency of the capture with the fluorescence of optical component 45, then the shape in the face that the injection in relation to light is projected compared with square shape,
More preferably round.
Light diffuser plate etc. can be used as light diffusing member 48.It is put down in addition, light diffusing member 48 is not limited to have
The shape of plate, for example, can also be rod lens, characteristic with Mie scattering rod lens, the light with light scattering surface
Conduit etc. has rodlike shape.
In the example of the figure, using light diffuser plate as light diffusing member 48, which has bigger than fluorescent plate 21
Size in length and breadth.
In the lighting device 10 of above structure, the excitation light projected from multiple excitation light units 11 is anti-by speculum 41
It penetrates, via space part 15 to the optically focused space incident of condenser 35.The excitation light being incident in the optically focused space is anti-through fluorescence
It penetrates with optical component 45 and light diffusing member 48 and to the excitation light light-receiving surface of the fluorescent plate of fluorescence radiation component 20 21, i.e. fluorescence
The surface of plate 21 is incident.Also, in fluorescent plate 21, the fluorophor for constituting fluorescence part is energized and radiofluorescence.The fluorescence
Although with being incident in fluorescent plate 21 but not being transformed to together with the excitation light of fluorescence by the fluorescence outgoing plane from fluorescent plate 21
I.e. the surface of fluorescent plate 21 is projected, via light diffusing member 48 by condensing optical system optically focused, in the perforation across speculum 41
Behind hole 43, projected to the external of lighting device 10.
In this way, the excitation light that lighting device 10 is autoexcitation in future light irradiating means is shone via space part 15 to fluorescent plate 21
It penetrates.Therefore, the degree of freedom of larger design can be obtained in excitation light irradiating means and condensing optical system, so can incite somebody to action
The excitation light irradiating means and condensing optical system are constituted with less component, in these excitation light irradiating means and light-gathering optics
It can be particularly easy to that the size of the optical axis direction of fluorescent plate 21 is made to become smaller in system.As a result, it is possible to realize lighting device 10
Miniaturization.Furthermore it is possible to by the light condensing optical system after projecting from fluorescent plate 21, spread fluorescence by light diffusing member 48
Simultaneously optically focused is captured with higher efficiency, to external leaded light.Also, in the light-gathering lens 31 and optically focused for constituting condensing optical system
It need not be all formed in either one or two of mirror 35 for making the excitation light that excitation light is passed through through passing by one's way, thus without generation due to being formed
There is excitation light to generate light loss (fluorescence losses) through passing by one's way.In turn, since excitation light carries out space propagation, so height can be obtained
Excitation light utilization efficiency, and the excitation luminous intensity of excitation light can be made to become larger.
Thus, it according to lighting device 10, can realize miniaturization, be furthermore possible to obtain high excitation light utilization ratio, and
And so that the excitation luminous intensity of excitation light is become larger, in turn, due to can future autofluorescence plate 21 the light that projects utilized with high efficiency,
So high output can be realized.
Specifically, the size M1 that irradiation unit 10 can be the optical axis direction of fluorescent plate 21 is 211mm and fluorescent plate 21
The vertical directions optical axis C size M2 be 160mm small-sized device.Also, it, can in the small-sized irradiation unit 10
Excitation light is set to be output into 100W.
In addition, in lighting device 10, it is equipped with fluorescent reflection optical component 45, which has with optical component 45
There is outer peripheral edge 45A to be located at the inside of imaginary cone S2, inner peripheral 45B be located at imaginary cone S1 outside tubular shape.Therefore,
It can will be reflected from fluorescent plate 21 towards the fluorescence of space part 15 towards the fluorescent plate 21, so can inhibit not by optically focused light
Learn systems, spot and as unavailable fluorescence generation, thus, it is possible to obtain high fluorescence utilization ratio.In addition, fluorescent reflection
With optical component 45 will not by from fluorescent plate 21 towards condensing optical system fluorescence and from condensing optical system project it is glimmering
Light reflection.As a result, it is possible to realize further high output.
In addition, in lighting device 10, due to being equipped with light diffusing member 48, so can change from fluorescent reflection optics
The direction of travel for the fluorescence that component 45 is reflected towards fluorescent plate 21.Therefore, it is possible to make to be reflected by fluorescent reflection optical component 45
Light captured with high efficiency by condensing optical system, thus, it is possible to obtain higher fluorescence utilization ratio.As a result, it is possible to realize into
The high output of one step can be readily derived the light of desired tone in addition, in the radiating light from lighting device 10.
Fig. 3 is the definition graph for another embodiment for indicating the lighting device of the present invention, and Fig. 4 is filled by the illumination of Fig. 3
The position of multiple excitation light units and speculum is indicated in the state of from setting the optical axis direction rear of the fluorescent plate from reflection-type
The definition graph of relationship.
The light of condenser 35 of the lighting device 50 in addition to fluorescent reflection with the configuration of optical component 45 in excitating optical path is put
It penetrates in the region (optically focused space exterior domain) between opening 37 and speculum 41, be configured with other than light uniformization component 19 in addition,
With structure substantially same as the lighting device 10 of Fig. 1.
In the lighting device 50, fluorescence radiation component 20, condensing optical system (light-gathering lens 31 and condenser 35),
Light irradiating means (excitation light source and speculum 41), fluorescent reflection optical component 45 and light diffusing member 48 is encouraged to have and figure
The 1 substantially same structure of lighting device 10.In addition, light-gathering lens 31, condenser 35, speculum 41 and fluorescent reflection are used
The lighting device 10 of optical component 45 and Fig. 1 is same, is configured in such a way that its optical axis is consistent with the optical axis of fluorescent plate 21 respectively.This
Outside, the focal point (the 2nd focus) of condenser 35 is consistent with the focal point of light-gathering lens 31, and optically focused light is constituted by these focal points
The focal point of system.
In figure 3, the light path from the injection of excitation light unit 11, the light reflected by speculum 41 is indicated by solid line L1.In addition,
Being projected by 31 optically focused of light-gathering lens, from the light-gathering lens 31 in the injection light from fluorescent plate 21 is indicated by dotted line L2
The light path of light is indicated the light path of the reflected light in the reflecting surface of condenser 35 by dotted line L3 in addition.
In the example of the figure, light-gathering lens 31 configure in the light radial openings 37 of condenser 35.Also, in optically focused
Between the outer peripheral edge and the opening edge 37A of condenser 35 of property lens 31, circle is formed in a manner of surrounding light-gathering lens 31
Cricoid space part 15.
In addition, excitation light source is made of 8 excitation light units 11, this 8 excitation light units 11 have respectively multiple (to be schemed
It is 3 in 3 example) lasing light emitter 52, (right in Fig. 3) is configured with poly- in front of the optical axis direction of these multiple lasing light emitters 52
Photosensitiveness lens 53.The lighting devices 10 of multiple excitation light units 11 and Fig. 1 are same, along condenser 35 outer surface it is circumferential with
It equally spaced configures, in addition, multiple excitation light units 11 configure in such a way that its optical axis is parallel with the optical axis of fluorescent plate 21 respectively.
In addition, excitation light source (multiple excitation light units 11) and fluorescent plate 21 are disposed in the coldplate (figure of rectangular flat plate
Show omission) on.That is, in lighting device 50, the cooling body (diagram is omitted) equipped with the coldplate for having rectangular flat plate should
Cooling body is common in excitation light source (multiple excitation light units 11) and fluorescent plate 21.
Light uniformization component 19 is for making by condensing optical system optically focused and having passed through fluorescent reflection optical component 45
Through hole 47 and speculum 41 through hole 43 light uniformization, be configured in optical axis direction rear (Fig. 3 of speculum 41
In right).
As light uniformization component 19, collection optical wand, another party are used in the case where condenser 35 is ellipse of revolution face mirror
Face uses lens array in the case where condenser 35 is rotating paraboloidal mirror.
In the example of the figure, using collection optical wand as light uniformization component 19.Also, the light uniformization component 19 is with it
Optical axis and the optical axis of fluorescent plate 21, the optical axis of light-gathering lens 31, the optical axis of condenser 35, the optical axis of speculum 41 and fluorescence are anti-
And light incident surface 19A consistent with the optical axis of optical component 45 is penetrated to be located at the mode on the focal point of condensing optical system and configure.
In the lighting device 50 of above structure, the excitation light projected from multiple excitation light units 11 is anti-by speculum 41
It penetrates, through after fluorescent reflection optical component 45, via space part 15 to the optically focused space incident of condenser 35.It is incident on this
Excitation light in optically focused space penetrates light diffusing member 48, the excitation light light-receiving surface of the fluorescent plate 21 into fluorescence radiation component 20
That is the surface of fluorescent plate 21 is incident.Also, in fluorescent plate 21, the fluorophor for constituting fluorescence part is energized and radiofluorescence.
The fluorescence is projected by the surface of fluorescence outgoing plane, that is, fluorescent plate 21 from fluorescent plate 21, via light diffusing member 48 by light-gathering optics
Systems, spot, across the through hole 47 of fluorescent reflection optical component 45 and the through hole 43 of speculum 41 by light uniformization portion
After part 19 homogenizes, projected to the external of lighting device 50.
In this way, the lighting device 10 of lighting device 50 and Fig. 1 is same, the excitation light from excitation light irradiating means is via sky
Gap portion 15 is irradiated to fluorescent plate 21.Thus, according to lighting device 50, can equally be realized with the lighting device 10 of Fig. 1 small-sized
Change, in addition, high fluorescence utilization ratio can be obtained and the excitation luminous intensity of excitation light is made to become larger, additionally it is possible to future autofluorescence plate
21 light that projects is utilized with high efficiency, so high output can be realized.
In addition, in lighting device 50, it is equipped with fluorescent reflection optical component 45, which has with optical component 45
There is inner peripheral 45B positioned at the focal point and opening edge 37A for including condensing optical system, the vacation extended along the optical axis of fluorescent plate 21
Think the tubular shape in the outside of the conical surface.Therefore, it is possible to will be from fluorescent plate 21 towards the fluorescence of space part 15 towards the fluorescent plate 21
Reflection, so can inhibit the generation not by condensing optical system optically focused and as unavailable fluorescence, thus, it is possible to obtain
High fluorescence utilization ratio.In addition, the fluorescent reflection that fluorescent reflection optical component 45 will not will be projected from light radial openings 37.
As a result, it is possible to realize further high output.
In addition, in lighting device 50, due to being equipped with light diffusing member 48, so can will be from fluorescent reflection optical section
The direction of travel for the fluorescence that part 45 is reflected towards fluorescent plate 21 changes.It is anti-by fluorescent reflection optical component 45 therefore, it is possible to make
The light penetrated is captured by condensing optical system with high efficiency, and thus, it is possible to obtain higher fluorescence utilization ratio.As a result, it is possible to realize
Further high output can be readily derived desired tone in addition, in the radiating light from lighting device 50
Light.
In the lighting device of the present invention, it is not limited to above-mentioned embodiment, various changes can be subject to.
For example, lighting device can also be as shown in figure 5, be to be equipped with to make excitation light in front of the optical axis direction of fluorescent plate 21
And from fluorescent plate 21 project fluorescence penetrate rod lens 61, the injection light from fluorescent plate 21 via rod lens 61 by
The lighting device of the optically focused space incident of condenser 35.
Lighting device according to this structure, due to the excitation light from excitation light source via rod lens 61 by glimmering
The excitation light light-receiving surface of tabula rasa 21 is incident, so can realize the homogenization of incident excitation light in the excitation light light-receiving surface.
Therefore, excitation light will not be locally radiated in a part for excitation light light-receiving surface, by the excitation luminous intensity for making excitation light
Become larger, can realize the high output of lighting device.
The lighting device of Fig. 5 has structure same as the lighting device 10 of Fig. 1 other than being equipped with rod lens 61.
In addition, fluorescent plate can also be to be formed with to make excitation light and from composition on the surface of flat fluorescence part
The fluorescence part fluorophor radiation fluorescence penetrate, be formed on the surface periodical configuration periodic structure layer fluorescence
Plate.In addition, it is flat fluorescent plate that fluorescent plate, which can also be excitation light light-receiving surface,.In turn, in the fluorescence part for constituting fluorescent plate
In, small scatterer can also be contained, which makes excitation light and radiated from the fluorophor for constituting the fluorescence part
Fluorescent scattering.
Hereinafter, to being illustrated for the experimental example for confirming the function and effect of the present invention and carrying out.
(experimental example 1)
According to the structure fabrication lighting device (below also referred to as " lighting device (1) ") of Fig. 1.
The use of the size of the excitation light after being calibrated is the excitation of 1.2mm × 4mm in the lighting device (1) produced
Light unit (11) is as excitation light source；Using having by YAG and Al2O3Mixture sintered body constitute, by setting on the back side
Set optical reflection film thus the back side have reflection function fluorescence part fluorescent plate as fluorescent plate (21).In addition, using the 1st
Focal length is 16.7mm and the 2nd focal length is the ellipse of revolution face mirror of 190mm as condenser (35).In addition, using burnt
It is the rotating paraboloidal mirror of 160mm as speculum (41) that point distance, which is 160mm, outer diameter,.Use wavelength selectivity concave surface
Mirror as fluorescent reflection with optical component (45), using light diffuser plate as light diffusing member (48).
In the lighting device (1), the size (M1) of the optical axis direction of fluorescent plate (21) is 211mm, perpendicular to fluorescent plate
(21) size (M2) in the direction of optical axis is 160mm.
In addition, in addition to being not provided with fluorescent reflection optical component (45) and light diffusing member (48) in lighting device (1)
In addition, the lighting device (below also referred to as " lighting device (2) ") of the same structure with the lighting device (1) is made.
Equally with lighting device (1), the size (M1) of the optical axis direction of fluorescent plate (21) is 211mm to the lighting device (2),
Size (M2) perpendicular to the direction of the optical axis of fluorescent plate (21) is 160mm.
In lighting device (1) and lighting device (2), excitation light source igniting is confirmed into fluorescence utilization ratio respectively, is shone
The fluorescence utilization ratio of bright device (1) is 63.6%, and the fluorescence utilization ratio of lighting device (2) is 52.4%.
According to the result of above experimental example 1 it is found that by the way that fluorescent reflection optical component (45) and light diffusion part is arranged
Part (48), can realize more high output.In addition it is found that being spread by the way that fluorescent reflection optical component (45) and light is arranged
Component (48), lighting device is not enlarged.
(experimental example 2)
In addition in the lighting device (1) of experimental example 1 by fluorescent reflection optical component (45) configure excitation light source with it is anti-
Penetrate between mirror (41) close to other than the position of excitation light source, produce the illumination of the same structure with the lighting device (1)
Device (below also referred to as " lighting device (3) ").In the lighting device (3), fluorescent reflection is configured to optical component (45),
Fluorescence is reflected towards speculum (41).
Equally with lighting device (1), the size (M1) of the optical axis direction of fluorescent plate (21) is 211mm to the lighting device (3),
Size (M2) perpendicular to the direction of the optical axis of fluorescent plate (21) is 160mm.
In addition, in addition to being not provided with fluorescent reflection optical component (45) and light diffusing member (48) in lighting device (3)
In addition, the lighting device (below also referred to as " lighting device (4) ") of the same structure with the lighting device (3) is made.
Equally with lighting device (3), the size (M1) of the optical axis direction of fluorescent plate (21) is 211mm to the lighting device (4),
Size (M2) perpendicular to the direction of the optical axis of fluorescent plate (21) is 160mm.
In lighting device (3) and lighting device (4), excitation light source igniting is confirmed into fluorescence utilization ratio respectively, is shone
The fluorescence utilization ratio of bright device (3) is 54.7%, and the fluorescence utilization ratio of lighting device (4) is 52.4%.
According to the result of above experimental example 2 it is found that by the way that fluorescent reflection optical component (45) and light diffusion part is arranged
Part (48), can realize further high output.In addition it is found that being expanded by the way that fluorescent reflection optical component (45) and light is arranged
Separate component (48), lighting device is not enlarged.
Also, result according to the experiment case 1 and the result of experimental example 2 are it is found that by by fluorescent reflection optical component
(45) it is configured with the opposing surface of fluorescent plate (21), can realize further high output.
Label declaration
10 lighting devices
11 excitation light units
11A encourages light emergence face
12 radiator fans
15 space parts
19 light uniformization components
19A light incident surfaces
20 fluorescence radiation components
21 fluorescent plates
22 substrates
31 light-gathering lens
35 condensers
37 smooth radial openings
37A opening edges
38 through holes
41 speculums
42 smooth radial openings
43 through holes
45 fluorescent reflection optical components
The outer peripheral edges 45A
45B inner peripherals
46 smooth radial openings
47 through holes
48 light diffusing members
50 lighting devices
52 lasing light emitters
53 light-gathering lens
61 rod lens
71 semiconductor Laser devices
72 fluorescent plates
73 optical fiber
74 fiber optic bundle portions
75 concave mirrors
76 through holes
77,78 lens
79 speculums
Claims (7)
1. a kind of lighting device, which is characterized in that
Have：
The fluorescent plate of reflection-type；
Light-gathering lens are configured in front of the optical axis direction of the fluorescent plate；And
Cricoid condenser has light radial openings, and the opening diameter of the light radial openings is bigger than the outer diameter of the light-gathering lens, on
It states cricoid condenser in such a way that the light radial openings are located in front of the optical axis direction of the fluorescent plate to be configured, it is glimmering that this will be come from
The light reflection in the direction other than the direction for projecting the direction light-gathering lens in light of tabula rasa and optically focused；
Excitation light from excitation light source is via the space part between above-mentioned condenser and above-mentioned light-gathering lens by above-mentioned glimmering
Tabula rasa irradiates.
2. lighting device as described in claim 1, which is characterized in that
In the light path that the excitation light from above-mentioned excitation light source is reached to above-mentioned fluorescent plate, configured with fluorescent reflection optical section
Part, the fluorescent reflection are penetrated above-mentioned excitation light with optical component, will be from the fluorescence that above-mentioned fluorescent plate projects to towards the fluorescence
The direction of plate is reflected.
3. lighting device as claimed in claim 2, which is characterized in that
Above-mentioned fluorescent reflection is configured in optical component between in above-mentioned light path, above-mentioned fluorescent plate and above-mentioned light-gathering lens
Region in.
4. lighting device as claimed in claim 3, which is characterized in that
Above-mentioned fluorescent reflection optical component has the tubular shape that the outer peripheral edge along above-mentioned light-gathering lens extends；
Above-mentioned fluorescent reflection is disposed of with optical component, and the outer peripheral edge of the fluorescent reflection optical component is located at comprising above-mentioned glimmering
The opening edge of the light radial openings of melatope and above-mentioned condenser in the excitation light light-receiving surface of tabula rasa and along the fluorescent plate
The inside for the imaginary cone that optical axis extends, the inner peripheral of the fluorescent reflection optical component are located at comprising above-mentioned melatope and above-mentioned
The outer peripheral edge of light-gathering lens and along the optical axis of the fluorescent plate extend imaginary cone outside.
5. lighting device as claimed in claim 2, which is characterized in that
In front of the optical axis direction of above-mentioned condenser, it is equipped with the ring-type extended along the opening edge of the light radial openings of the condenser
Speculum；
Above-mentioned fluorescent reflection be provided in optical component the light radial openings of the above-mentioned condenser in above-mentioned light path with it is above-mentioned anti-
It penetrates in the region between mirror.
6. lighting device as claimed in claim 5, which is characterized in that
Above-mentioned fluorescent reflection optical component has the tubular shape that the opening edge along above-mentioned smooth radial openings extends；
Above-mentioned fluorescent reflection is disposed of with optical component, and the inner peripheral of the fluorescent reflection optical component is located at comprising above-mentioned poly-
The opening edge of the focal point and above-mentioned smooth radial openings of light microscopic and above-mentioned light-gathering lens and prolong along the optical axis of above-mentioned fluorescent plate
The outside for the imaginary cone stretched.
7. lighting device as claimed in claim 2, which is characterized in that
In front of the optical axis direction of above-mentioned fluorescent reflection optical component between above-mentioned fluorescent plate and above-mentioned light-gathering lens, match
It is equipped with the light diffusing member with fluorescence diffusivity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015023095A JP5983794B2 (en) | 2015-02-09 | 2015-02-09 | Lighting device |
| JP2015-023095 | 2015-02-09 | ||
| PCT/JP2016/051549 WO2016129345A1 (en) | 2015-02-09 | 2016-01-20 | Illumination device |
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| Publication Number | Publication Date |
|---|---|
| CN107208857A CN107208857A (en) | 2017-09-26 |
| CN107208857B true CN107208857B (en) | 2018-10-02 |
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| CN201680009229.9A Active CN107208857B (en) | 2015-02-09 | 2016-01-20 | Lighting device |
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|---|---|
| JP (1) | JP5983794B2 (en) |
| KR (1) | KR101830045B1 (en) |
| CN (1) | CN107208857B (en) |
| WO (1) | WO2016129345A1 (en) |
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| KR102085955B1 (en) * | 2018-09-20 | 2020-03-06 | 전자부품연구원 | A lighting device using a led |
| KR102489545B1 (en) * | 2021-03-16 | 2023-01-19 | 주식회사 아이코어 | High brightness light source device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010212089A (en) * | 2009-03-10 | 2010-09-24 | Koito Mfg Co Ltd | Vehicular lighting fixture |
| CN102109099A (en) * | 2009-12-28 | 2011-06-29 | 夏普株式会社 | Illumination device |
| CN102155639A (en) * | 2010-02-12 | 2011-08-17 | 日立民用电子株式会社 | Solid-state light source device |
| JP2015005650A (en) * | 2013-06-21 | 2015-01-08 | パナソニック株式会社 | Wavelength conversion member, light source having wavelength conversion member and vehicle headlamp having light source |
| CN104870887A (en) * | 2013-02-27 | 2015-08-26 | 日立麦克赛尔株式会社 | Light source device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5221422B2 (en) | 2009-03-10 | 2013-06-26 | 富士通テレコムネットワークス株式会社 | Waveform rocker switch and its on / off switching method |
-
2015
- 2015-02-09 JP JP2015023095A patent/JP5983794B2/en active Active
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2016
- 2016-01-20 KR KR1020177025098A patent/KR101830045B1/en active IP Right Grant
- 2016-01-20 WO PCT/JP2016/051549 patent/WO2016129345A1/en active Application Filing
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010212089A (en) * | 2009-03-10 | 2010-09-24 | Koito Mfg Co Ltd | Vehicular lighting fixture |
| CN102109099A (en) * | 2009-12-28 | 2011-06-29 | 夏普株式会社 | Illumination device |
| CN102155639A (en) * | 2010-02-12 | 2011-08-17 | 日立民用电子株式会社 | Solid-state light source device |
| CN104870887A (en) * | 2013-02-27 | 2015-08-26 | 日立麦克赛尔株式会社 | Light source device |
| JP2015005650A (en) * | 2013-06-21 | 2015-01-08 | パナソニック株式会社 | Wavelength conversion member, light source having wavelength conversion member and vehicle headlamp having light source |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101830045B1 (en) | 2018-02-19 |
| CN107208857A (en) | 2017-09-26 |
| JP2016146284A (en) | 2016-08-12 |
| KR20170105636A (en) | 2017-09-19 |
| JP5983794B2 (en) | 2016-09-06 |
| WO2016129345A1 (en) | 2016-08-18 |
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