CN109411460A - Multispectral Sony ericsson mobile comm ab and multispectral radiation source - Google Patents
Multispectral Sony ericsson mobile comm ab and multispectral radiation source Download PDFInfo
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- CN109411460A CN109411460A CN201811568425.7A CN201811568425A CN109411460A CN 109411460 A CN109411460 A CN 109411460A CN 201811568425 A CN201811568425 A CN 201811568425A CN 109411460 A CN109411460 A CN 109411460A
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
Abstract
The present invention provides a kind of multispectral Sony ericsson mobile comm ab and multispectral radiation source, the multispectral Sony ericsson mobile comm ab includes package substrate, reflector is provided on the loading end of package substrate, at least two are provided in the accommodation space of reflector can issue the solid-state light emitting element of different wave length light；Package substrate two sides are provided at least two pairs of electrodes, and electrode is connected with the positive and negative anodes of solid-state light emitting element；It is also closed off at the light-emitting window of reflector and is provided with microlens array, microlens array is parallel with package substrate, and the side of the refractive hemispherical microlenses on microlens array with multiple orthogonal thereto array arrangements is backwards to solid-state light emitting element.The present invention not only has many advantages, such as that efficiency of light extraction is high, the Space Angle of small, the variant wavelength light of encapsulation volume is approximately uniform, light collimation is parallel, hot spot is uniform, and variant wavelength light is also approximately uniform in the uniform light spots position of target target surface, effectively improves the clinical effectiveness of optical dynamic therapy.
Description
Technical field
The present invention relates to field of optical device technology, and in particular to a kind of multispectral Sony ericsson mobile comm ab and multispectral irradiation
Light source.
Background technique
Optical dynamic therapy with light source be optical dynamic therapy core and crucial, the wavelength of light source, illumination power density, illumination
It is dynamic that the technical indicators such as the illumination power density distribution curved surface of the uniformity, different wavelengths of light in effective irradiation area directly affect light
The effect of power treatment.In the prior art, multispectral Sony ericsson mobile comm ab is generallyd use as optical dynamic therapy light source.
However, multispectral Sony ericsson mobile comm ab in the prior art generallys use plane packaging structure when packaged, or
Increase a hemispherical lens on the light output surface of plane packaging structure again, encapsulating material generally uses epoxy resin or silica gel
Equal transparent materials.The former keeps outgoing optical energy loss serious due to " evolution cone " there are light critical angle, and although the latter mentions
High light extraction efficiency, but since there are the differences that refractive index and Space Angle are distributed after lens for different wave length light beam, so that
When light beam irradiates target target surface, it may appear that the position for the uniform irradiation hot spot that each different wave length light beam is formed on target target surface
It is different.
Therefore, light source applications will be used as in optical dynamic therapy after the multispectral Sony ericsson mobile comm ab array arrangement of the prior art
In, it will lead to and occur that the efficiency of light energy utilization is low, uneven illumination is even, the irradiation hot spot of different wave length is different in treatment region surface location
A series of problems, such as cause, treatment region surface Compound eye power density distribution curve form differ greatly, to make light
Dynamic therapy clinical effectiveness is bad, constrains application and hair of the multispectral Sony ericsson mobile comm ab as optical dynamic therapy light source
Exhibition.
Summary of the invention
The embodiment of the present invention provides a kind of multispectral Sony ericsson mobile comm ab and multispectral radiation source, to solve the prior art
In multispectral Sony ericsson mobile comm ab array arrangement after a series of influence light for occurring in optical dynamic therapy as light source applications
The problem of dynamic therapy effect.
In a first aspect, the embodiment of the present invention provides a kind of multispectral Sony ericsson mobile comm ab, including package substrate, the encapsulation
It is provided with reflector on the loading end of substrate, the solid-state of at least two different wave lengths is provided in the accommodation space of the reflector
Light-emitting component；The package substrate two sides are provided at least two pairs of electrodes, and the electrode is positive and negative with the solid-state light emitting element
Extremely it is connected；
It is also closed off at the light-emitting window of the reflector and is provided with microlens array, the microlens array and the encapsulation base
Plate is parallel, and the side of the refractive hemispherical microlenses on the microlens array with multiple orthogonal thereto array arrangements is backwards
The solid-state light emitting element.
As the preferred embodiment of first aspect present invention, the solid-state light emitting element is included in 620~630nm wave-length coverage
The interior red LED chip with peak wavelength, in 520~530nm wave-length coverage with peak wavelength green LED chip with
And with the blue-light LED chip of peak wavelength in 460~470nm wave-length coverage.
As the preferred embodiment of first aspect present invention, the red LED chip, the green LED chip and the indigo plant
The arrangement in equilateral triangle of light LED chip, the red LED chip, the green LED chip and the blue-light LED chip phase
The distance between mutual is 0.1~0.2mm.
As the preferred embodiment of first aspect present invention, the two sides of the package substrate are provided with three pairs of electrodes, and three
It is connected respectively with the positive and negative anodes of the red LED chip, the green LED chip and the blue-light LED chip to the electrode.
As the preferred embodiment of first aspect present invention, the radius of the lenticule is 0.05~0.25mm, described micro-
The focal length of mirror is 0.8mm, and the distance between rounded bottom surface of the adjacent lenticule is 0mm.
As the preferred embodiment of first aspect present invention, the radius of the lenticule is 0.15mm.
As the preferred embodiment of first aspect present invention, the light-emitting window of the reflector is rectangle or circle, described micro-
The shape of lens array and the shape of the light-emitting window of the reflector match.
As the preferred embodiment of first aspect present invention, the height of the reflector is identical as the focal length of the lenticule.
As the preferred embodiment of first aspect present invention, it is provided with insulating surface layer on the loading end of the package substrate,
The insulating surface layer is made of thermal conductive ceramic material.
Second aspect, the embodiment of the present invention provide a kind of multispectral radiation source, including wiring board and at least one such as
Multispectral Sony ericsson mobile comm ab described in any one of above-mentioned first aspect, each multispectral orthogonal thereto battle array of Sony ericsson mobile comm ab
Column are arranged on the wiring board.
Multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention will issue the solid-state light emitting element of different wave length light
It is directly exposed in air, reduces etendue, then by closing the lenticule being arranged at the light-emitting window of reflector
Array collects light of each solid-state light emitting element in wide-angle light emitting region, to obtain the collimation having compared with small divergence angle
Parallel light pencil, largely reduces optical energy loss, improves efficiency of light extraction.Meanwhile it being formed after microlens array
The parallel light pencil of collimation the Space Angle distributional difference of the light of each different wave length is constrained to very little so that different wave length
Light is identical in the position for the uniform irradiation hot spot that target target surface is formed, and illumination power density distribution is uniform, so that by more
When the multispectral radiation source of spectrum Sony ericsson mobile comm ab composition is applied in optical dynamic therapy, clinical therapeutic efficacy is preferable.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 (a) is a kind of structural schematic diagram of multispectral Sony ericsson mobile comm ab in the prior art；
Fig. 1 (b) is to apply after a kind of multispectral Sony ericsson mobile comm ab in the prior art forms multispectral radiation source
Radiation response figure in optical dynamic therapy；
Fig. 2 (a) is the structural schematic diagram of the multispectral Sony ericsson mobile comm ab of another kind in the prior art；
Fig. 2 (b) is to apply after the multispectral Sony ericsson mobile comm ab of another kind in the prior art forms multispectral radiation source
Radiation response figure in optical dynamic therapy；
Fig. 3 is a kind of structural schematic diagram of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention；
Fig. 4 is a kind of three dimensional structure diagram of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention；
Fig. 5 is multiple lenticules on microlens array in a kind of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention
Arrangement schematic diagram；
Fig. 6 is the solid-state light emitting element of different wave length in a kind of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention
Arrangement schematic diagram；
Fig. 7 be in a kind of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention on microlens array lenticule half
The simulation curve of diameter and normalization efficiency of light extraction relationship；
Fig. 8 is contiguous microlens on microlens array in a kind of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention
The distance between with normalization efficiency of light extraction relationship simulation curve；
Fig. 9 be in a kind of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention three kinds of different wave length light in target
The uniform light spots region that target surface is formed；
Figure 10 is a kind of structural schematic diagram of multispectral radiation source provided in an embodiment of the present invention；
Figure 11 is that a kind of multispectral radiation source provided in an embodiment of the present invention applies the irradiation in optical dynamic therapy to imitate
Fruit figure；
Figure 12 is that three kinds not after a kind of multispectral radiation source provided in an embodiment of the present invention is applied in optical dynamic therapy
The illumination power density distribution curved surface for the hot spot that co-wavelength light is formed on target target surface.
Wherein, 1, package substrate, 2, reflector, 3, solid-state light emitting element, 4, electrode, 5, plane packaging structure, 6, route
Plate, 7, light transmission protective plate, 8, target target surface, 9, hemispherical lens structure, 10, microlens array, 101, lenticule, 11, first
Optical lens array, the 12, second optical micro lens array.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the prior art, the multispectral Sony ericsson mobile comm ab as optical dynamic therapy light source generallys use flat when packaged
Face encapsulating structure, or a hemispherical lens structure, encapsulating material are further added by the light output surface of the plane packaging structure
Generally using transparent materials such as epoxy resin or silica gel.Below in conjunction with corresponding attached drawing, first both are more in the prior art
The structure of spectrum Sony ericsson mobile comm ab and existing defect are described in detail.
Referring to Fig.1 shown in (a), the multispectral solid-state for using plane packaging structure in the prior art is shown in Fig. 1 (a)
The structural schematic diagram of luminescent device.In the multispectral Sony ericsson mobile comm ab, including red LED chip, green LED chip and blue light
Solid-state light emitting element 3 including LED chip is integrated on same package substrate 1, while each LED chip and corresponding electrode
4 connections, then are filled to form plane packaging structure 5 using transparent materials such as epoxy resin or silica gel to reflector 2.
From in Fig. 1 (a) as can be seen that the light that is emitted from each LED chip by plane packaging structure surface with
Reflection and refraction occur when the interface of air.When the angle of incidence is larger than a critical angle, it may occur that total reflection, light cannot be emitted to
In air, that is, there is " the evolution cone " of critical angle, to reduce the efficiency of light extraction of multispectral Sony ericsson mobile comm ab entirety.This
Outside, due to the lambertian distribution that the radiation angle of the light of each LED chip outgoing is in 110~120 °, the hair of excessive emergent ray
Scattered angle disperses energy of light source.
Referring to Fig.1 shown in (b), Fig. 1 (b) shows the multispectral Sony ericsson mobile comm ab group with structure shown in Fig. 1 (a)
At applying the radiation response figure in optical dynamic therapy after multispectral radiation source.It is made of the LED chip of three different wave lengths
Multispectral Sony ericsson mobile comm ab be arranged in array in assist side 6 and form multispectral radiation source, apply in optical dynamic therapy
When middle, the light beam of the different wave length issued, by being irradiated to target target surface 8 after being mounted on light transmission protective plate 7 behind.?
8 surface of target target surface, the interlaced overlapping of hot spot caused by the light beam of each different wave length, connection in flakes, form large area
Hot spot.
Obviously, the multispectral radiation source formed using the multispectral Sony ericsson mobile comm ab of structure shown in Fig. 1 (a), is deposited
In following defect: although reaching target target surface surface by the light beam of each multispectral Sony ericsson mobile comm ab outgoing is formed by hot spot
It can be connected with each other in flakes, but since the efficiency of light extraction of each multispectral Sony ericsson mobile comm ab is lower, and because the angle of divergence is excessive
Energy of light source is caused to be dispersed, although so that the facula area for being radiated at target target surface surface is big, the illumination function of each position
Rate density is but very low, it is difficult to meet requirement of the optical dynamic therapy to effective irradiation area light according to power density, clinical therapeutic efficacy
It is bad.
Referring to shown in Fig. 2 (a), the light table out used in the prior art in the plane packaging structure is shown in Fig. 2 (a)
The structural schematic diagram of the multispectral Sony ericsson mobile comm ab of a hemispherical lens structure is further added by face.The multispectral solid luminescent
In device, the solid-state light emitting element 3 including red LED chip, green LED chip and blue-light LED chip is integrated in together
On one package substrate 1, while each LED chip is connected with corresponding electrode 4, then using transparent materials such as epoxy resin or silica gel
Material is filled reflector 2 to form plane packaging structure 5, then increases a hemispherical again on plane packaging structure 5
Lens arrangement 9.Obviously, the radiation angle that each LED chip is emitted is divided in 110~120 ° of lambert by hemispherical lens structure
The light of cloth is converged, and becomes the light of gaussian distribution with the specific angle of divergence, and the energy for emitting light beam is concentrated on
Near optical axis.In addition, hemispherical lens structure changes the propagation side for the light of each LED chip outgoing being located in " evolution cone "
To plane packaging structure can be escaped, to improve the multispectral solid state illuminator with structure shown in Fig. 2 (a)
The efficiency of light extraction of part.
From the solid-state that can be seen that in Fig. 2 (a) including red LED chip, green LED chip and blue-light LED chip
Light-emitting component is integrated on same package substrate, although different LED chips is closely spaced to each other, their space bit
It sets and is still different, the difference of this spatial position will lead to the light for the different wave length that they are issued through hemispherical lens knot
Space Angle distribution after structure collimation has differences.Further, since the refractive index of hemispherical lens structure subtracting with lambda1-wavelength
Increase less, in the light of three LED chips outgoing, the smallest blue light refractive index of wavelength is maximum, and the maximum feux rouges folding of wavelength
Penetrate rate minimum.When during light is from hemispherical lens structure-borne to air, the small light of refractive index can be biased to hemispherical lens
The edge of structure.
Referring to shown in Fig. 2 (b), Fig. 2 (b) shows the multispectral Sony ericsson mobile comm ab group with structure shown in Fig. 2 (a)
At applying the radiation response figure in optical dynamic therapy after multispectral radiation source.It is made of the LED chip of three different wave lengths
Multispectral Sony ericsson mobile comm ab be arranged in array in assist side 6 and form multispectral radiation source, apply in optical dynamic therapy
When middle, the light beam of the different wave length issued arrives target target surface 8 by irradiation after being mounted on light transmission protective plate 7 behind.?
The position on 8 surface of target target surface, hot spot caused by the light beam of each different wave length is different, each other independently of each other, cannot
Connection in flakes, does not become the equally distributed spot area of illumination power density.
Certainly, to solve this problem, can by increasing the distance between the multispectral radiation source and target target surface,
So that each mutually independent hot spot for reaching target target surface is connected with each other.It is each on target target surface but with the increase of the distance
The illumination power density of a position will decline therewith, it is difficult to meet optical dynamic therapy to effective irradiation area light according to power density
It is required that clinical therapeutic efficacy is bad.Simultaneously as the presence of the Space Angle distributional difference of different wave length light and light are in hemisphere
The difference of the refractive index of shape lens arrangement, the light of each different wave length are formed by the position that hot spot occurs on target target surface surface
Set it is different will exist always, can't be reduced because of the increase of the multispectral radiation source and the distance between target target surface, this
Illumination power density distribution curved surface difference in kind effective irradiation region will be unfavorable for realizing multispectral smooth power link treatment
Validity.
In conclusion multispectral Sony ericsson mobile comm ab in the prior art there are efficiency of light extraction low, each different wavelengths of light
Line is applied if will directly form multispectral radiation source after its array arrangement the facula position difference of target target surface the defects of
In optical dynamic therapy, it will lead to and occur that the efficiency of light energy utilization is low, uneven illumination is even, the irradiation hot spot of different wave length is in treatment region table
Face position is inconsistent, treatment region surface Compound eye power density distribution curve form differs greatly etc. a series of asks
Topic, to keep optical dynamic therapy clinical effectiveness bad, constrains multispectral Sony ericsson mobile comm ab as optical dynamic therapy light source
Application and development.
For many disadvantages of multispectral Sony ericsson mobile comm ab in the prior art, referring to shown in Fig. 3~Fig. 5, the present invention
Embodiment discloses a kind of multispectral Sony ericsson mobile comm ab, including package substrate 1, is provided on the loading end of package substrate 1 anti-
Cup 2 is penetrated, the solid-state light emitting element 3 of at least two different wave lengths is provided in the accommodation space of reflector 2；1 two sides of package substrate
At least two pairs of electrodes 4 are provided with, electrode 4 is connected with the positive and negative anodes of solid-state light emitting element 3；It is also closed off at the light-emitting window of reflector 2
It is provided with microlens array 10, microlens array 10 is parallel with package substrate 1, and has on microlens array 10 multiple orthogonal thereto
The side of the refractive hemispherical microlenses 101 of array arrangement is backwards to solid-state light emitting element 3.
In the present embodiment, the transparent materials such as epoxy resin or silica gel is not used, reflector is filled, but reflecting
Closing is provided with a microlens array, the size of the size of the microlens array than the light-emitting window of reflector at the light-emitting window of cup
It is bigger, so that microlens array can cover all the light-emitting window of reflector, so that microlens array and each solid luminescent member
The distance of part fixes and each solid-state light emitting element is isolated with outside air, also makes the structure of entire device more compact,
Easy to produce and use.
After being arranged in this way, each solid-state light emitting element can be made directly to be exposed in air, so as to reduce etendue.
And the mode for using refractive index to be packaged for the transparent material of n to solid-state light emitting element, etendue can expand n2Times.
Meanwhile the microlens array can collect the light that each solid-state light emitting element is emitted in wide-angle light emitting region
Line, and form the parallel light pencil of identical with the quantity of the lenticule on microlens array more collimations.The result handled in this way
It is, it is different although set up the spatial position of each solid-state light emitting element on same package substrate, but for lenticule battle array
For each lenticule on column, it is on same position that the light of incident different wave length can be seen as by approximation
Point light source.Therefore, the light that each solid-state light emitting element issues is after microlens array collimates, each difference in light pencil
The Space Angle distributional difference of wavelength light is constrained for very little, and the light pencil of each different wave length is formed by light in target target surface
Spot is closely located to identical.Since the lenticule on microlens array is closely arranged, more light pencils are formed on target target surface
Hot spot be connected to each other, formed illumination power density distribution uniformly and position consistency large spot, light power can be effectively improved and controlled
The clinical effectiveness for the treatment of.The emergent ray being made of more light pencils is not ideal directional light, but has certain diverging
Angle, but because of its angle of divergence very little, so can be approximately considered is directional light.
In addition, microlens array significantly reduces the thickness of lens compared with two kinds of encapsulating structures in the prior art, because
And greatly reduce energy loss of the light in lens.Therefore, by encapsulating the lenticule battle array at the light-emitting window of reflector
Column, not only solve the efficiency of light extraction problem of multispectral Sony ericsson mobile comm ab, but also can be by each different wave length light
Space Angle is constrained to approximately uniform.
It should be noted that the quantity of the lenticule on microlens array and the solid luminescent member being arranged on package substrate
The quantity of part is without direct relation.Under conditions of microlens array shape and size dimension determine, the lenticule that is arranged thereon
Quantity is determined by parameters such as the distance between the radiuses of lenticule, the rounded bottom surface of contiguous microlens.
Preferably, the light-emitting window of reflector 2 is rectangle or circle, the shape and the light out of reflector 2 of microlens array 10
The shape of mouth matches.
In the present embodiment, the light-emitting window of reflector can be set to rectangle or circle, preferably circular, at this time lenticule battle array
Column are also correspondingly arranged as circle.This is because when the light-emitting window of reflector is round, it is easy to accomplish in technique.
In addition, the bottom surface of reflector is preferably consistent with the shape of its light-emitting window, when the light-emitting window of reflector is circle
When, bottom surface is also round.The size of the bottom surface of reflector and light-emitting window by entire multispectral Sony ericsson mobile comm ab ruler
Very little size determines, as process conditions permit, should select biggish size as far as possible.
Preferably, the height of reflector and the focal length of lenticule are identical.
In the present embodiment, the height of reflector is by the optical center of lenticule in microlens array to solid-state light emitting element surface
Distance determine, when preferably identical as the focal length of lenticule, can there is preferable light-out effect.
Preferably, insulating surface layer is additionally provided on the loading end of package substrate 1, insulating surface layer is by thermal conductive ceramic material
It is made.
In the present embodiment, package substrate setting is square, assist side when facilitating subsequent composition multispectral radiation source
Upper orthogonal thereto array arrangement.The ceramic material of insulating surface layer selection is generally the materials such as aluminium oxide or aluminium nitride, insulation effect
Preferably.
On the basis of the above embodiments, solid-state light emitting element 3 includes having peak value in 620~630nm wave-length coverage
The red LED chip of wavelength, the green LED chip in 520~530nm wave-length coverage with peak wavelength and 460~
With the blue-light LED chip of peak wavelength in 470nm wave-length coverage.
In the present embodiment, solid-state light emitting element is preferably respectively in above-mentioned wave-length coverage with the feux rouges of peak wavelength
LED chip, green LED chip and blue-light LED chip, due to the peak value of the extinction spectrum of most photosensitizer be 625nm or
525nm or 465nm, so it can satisfy most of optical dynamic therapy to the particular demands of the wavelength of light.
Certainly, for certain photosensitizers, according to its extinction spectrum characteristic, those skilled in the art can be by solid luminescent member
Part is preferably respectively in above-mentioned wave-length coverage with red LED chip, yellow light LED chip and the blue-ray LED core of peak wavelength
Piece or other combinations.
In addition, solid-state light emitting element preferably uses LED chip, due also to LED chip is when lighting, the heat of sending compared with
It is few, it is possible to reduce the sense of discomfort generated when the treatment region of patient is illuminated in therapeutic process.
On the basis of the above embodiments, referring to shown in Fig. 6, red LED chip, green LED chip and blue-light LED chip
Arrangement in equilateral triangle, red LED chip, green LED chip and the mutual distance of blue-light LED chip be 0.1~
0.2mm。
In the present embodiment, as the red LED chip of solid-state light emitting element, green LED chip and blue-light LED chip
Arrangement in equilateral triangle, and the center of equilateral triangle and the plane of the light-emitting window of reflector is concentric, at this point for encapsulation
For the microlens array on reflector light-emitting window, the location of these three LED chips are the same.
In addition, the gap between these three LED chips is configured smaller as far as possible, it is possible to reduce etendue.
Certainly, in practical applications, three LED chips are arranged into equilateral triangle is a kind of preferred arrangement side
Formula, other arrangement modes are also possible, and when the quantity of LED chip is not three, those skilled in the art will necessarily
It is arranged into other modes.
It should be noted that the red LED chip, green LED chip and blue-light LED chip in the present embodiment are specifically located
In which position of equilateral triangle be without limitation.
On the basis of the above embodiments, the two sides of package substrate 1 are provided with three pairs of electrodes 4, three pairs of electrodes 4 respectively with it is red
Light LED chip, green LED chip are connected with the positive and negative anodes of blue-light LED chip.
In the present embodiment, the positive and negative anodes of red LED chip, green LED chip and blue-light LED chip respectively with three pairs of electrodes
Connection, therefore each LED chip is lighted and is extinguished and can be independently controlled, and facilitates when carrying out optical dynamic therapy to each
LED chip is controlled.
On the basis of the above embodiments, the radius of lenticule 101 is 0.05~0.25mm, and the focal length of lenticule is
0.8mm, the distance between rounded bottom surface of contiguous microlens 101 are 0mm.
In the present embodiment, microlens array is by multiple orthogonal thereto array arrangements backwards to the side of each solid-state light emitting element
What refractive hemispherical microlenses were formed.In Fig. 5, r is the radius of lenticule, and d is between the rounded bottom surface of contiguous microlens
Distance, D=2r+d are the distance between the center of circle of rounded bottom surface of contiguous microlens.
Further, Sony ericsson mobile comm ab multispectral in above-described embodiment is carried out using TracePro optical simulation software
Modeling and trace emulation analyze parameter r, d and D in microlens array to the efficiency of light extraction of the variant wavelength light of outgoing
It influences, to determine preferable lenticule parameter in the embodiment of the present invention.
Structure shown in the embodiment of the present invention is imported into TracePro optical simulation software, and defines the outer of package substrate
Shape is having a size of 5 × 5mm, and the size of solid-state light emitting element is 1 × 1 × 0.5mm, and the base diameter of reflector is 3.3mm, and top goes out
The diameter of optical port is 3.8mm, is highly 0.8mm, and the diameter of microlens array is 4.0mm, then establishes and carries out mould with light model
Quasi- emulation.Meanwhile the quantity for defining solid-state light emitting element is three, has peak value respectively in 620~630nm wave-length coverage
The red LED chip of wavelength, the green LED chip in 520~530nm wave-length coverage with peak wavelength and 460~
With the blue-light LED chip of peak wavelength in 470nm wave-length coverage.
Firstly, the distance between rounded bottom surface of setting contiguous microlens d=0mm, then to the lenticule of different radii
The efficiency of light extraction of variant wavelength light carry out trace emulation, and relative to multispectral solid state illuminator shown in Fig. 1 (a)
The efficiency of light extraction of the variant wavelength light of part makees normalized, obtains lenticule radius and normalizes efficiency of light extraction relationship
Simulation curve, referring to shown in Fig. 7.It can be seen from figure 7 that multispectral Sony ericsson mobile comm ab phase described in the embodiment of the present invention
For multispectral Sony ericsson mobile comm ab shown in Fig. 1 (a), the efficiency of light extraction of variant wavelength light is all improved, and
And efficiency of light extraction increases with the increasing of lenticule radius.This is because the radius of lenticule increases, on microlens array
Lenticule quantity is just reduced, and will certainly reduce the loss of luminous flux in this way, however lenticule radius is too big, will be so that different wave length
The Space Angle distributional difference of light increases, and is formed by facula position not in target target surface so as to cause the light of different wave length
Together.Accordingly, it is determined that the facula position difference of efficiency of light extraction and the formation of different wavelengths of light line is comprehensively considered when lenticule radius
Contradiction.
Secondly, setting lenticule radius r=0.15mm, between the rounded bottom surface of contiguous microlens distance it is variant
The efficiency of light extraction of wavelength light carries out trace emulation, and relative to multispectral Sony ericsson mobile comm ab shown in Fig. 1 (a) it is each not
The efficiency of light extraction of co-wavelength light makees normalized, obtains the distance between rounded bottom surface of contiguous microlens and takes with normalization
The simulation curve of light efficiency relationship, referring to shown in Fig. 8.As can be seen from Figure 8, in the case where the radius of lenticule determines,
Maximum value is presented when distance d=0mm of the efficiency of light extraction of variant wavelength light between the rounded bottom surface of contiguous microlens, and
Reduce with the increase of the distance, after radius of the distance close to lenticule, efficiency of light extraction rapid decrease.Therefore, micro-
In the case that the radius of lens determines, the distance between rounded bottom surface of contiguous microlens should be according to the processing side of microlens array
Method is as small as possible.
Above-mentioned simulation result shows: when the radius of lenticule is 0.05~0.25mm, the rounded bottom surfaces of contiguous microlens it
Between distance be 0mm when, efficiency of light extraction promoted effect it is obvious.At this point, effective aperture ratio [the π r of microlens array2/(2r+d)2]
× 100% value is 78.5%.
Preferably, the radius of lenticule 101 is 0.15mm, and the distance between the rounded bottom surface of contiguous microlens is at this time
When 0mm, efficiency of light extraction is best.
According to above-mentioned preferred lenticule parameter, the making material of microlens array selects the wave to visible light to infrared light
The light of long range all has the optical glass of good light permeability.Since the diameter of lenticule is very small, and microlens array
On each lenticule closely arrange, therefore cannot be processed using cold processing technique means.In the present embodiment, using plasma
The production of etching method optics micro-processing technology progress microlens array.Further, since optical glass has compared with PMMA material, PC material
The frangible disadvantages such as material, can be by coating film treatment come the non-friable characteristic of improving optical glass.
Therefore, the distance between the radius of above-mentioned lenticule and the rounded bottom surface of contiguous microlens is the feelings of 0mm
Under condition, the focal length of each lenticule is 0.8mm on the microlens array that made by the material.
On the basis of the focal length and radius of lenticule has been determined, those skilled in the art can calculate according to common knowledge
The height of lenticule out, details are not described herein for the process.
On the basis of the structure of the multispectral Sony ericsson mobile comm ab shown in the above-mentioned each embodiment of the present invention, in order into one
A kind of step card multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention in the efficiency of light energy utilization, to different wave length ray space
Angle constraint and hot spot it is uniform on effect, carried out following verifying, be first defined as follows parameter:
The uniformity: Ai=Ei/Ep；
Coefficient of uniformity: E=Se/S。
In formula, EiThe illumination power density of the certain point for the hot spot that target target surface is formed is irradiated for light；EpFor light irradiation
The illumination power density peak value in hot spot that target target surface is formed；S is the gross area that light irradiates the hot spot that target target surface is formed；
SeIt is irradiated in the hot spot that target target surface is formed for light and meets AiThe area in >=0.85 region.
Wherein, Ai>=0.85 region is defined as uniform light spots region.Coefficient of uniformity E is higher, it is meant that light in hot spot
It is more uniform according to power density distribution.
Specifically, in the position of the microlens array 150mm in multispectral luminescent device provided in an embodiment of the present invention
One target target surface of place's setting, for simulating patient's treatment zone.Then, 620~630nm wave is incident upon to target target surface respectively
Feux rouges in long range with peak wavelength, the green light in 520~530nm wave-length coverage with peak wavelength and 460~
With the blue light of peak wavelength in 470nm wave-length coverage, the light of variant wavelength is measured in target target surface using light irradiatometer
The illumination power density of the hot spot of upper formation.
When verifying, target target surface is divided into the square measurement subregion of 10 × 10mm, measurement target is each measurement
The illumination power density values for measuring target are denoted as E by the geometric center point in regioni, respectively according to the public affairs of the above-mentioned calculating uniformity
Formula calculates the uniformity A of measurement targeti.The light of three kinds of different wave lengths is formed by hot spot outermost in the same coordinate system
Middle Ai>=0.85 point is connected with broken line, forms three closed regions as shown in Figure 9, which is three kinds of different wave lengths
Each self-forming of light uniform light spots region.
From fig. 9, it can be seen that the area in the uniform light spots region of each self-forming of the light of three kinds of different wave lengths is essentially identical,
And integrated distribution, at the center of hot spot, position of three uniform light spots regions on target target surface substantially overlaps.
Then, using integrating sphere respectively to multispectral Sony ericsson mobile comm ab and the embodiment of the present invention shown in Fig. 1 (a)
Efficiency of light extraction of the multispectral luminescent device provided when being emitted different wave length light measures, and the embodiment of the present invention is mentioned
Measurement of the measurement numerical value of the multispectral Sony ericsson mobile comm ab supplied relative to multispectral Sony ericsson mobile comm ab shown in Fig. 1 (a)
Numerical value is normalized, and the variant wavelength light for obtaining multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention is returned
One changes the numerical value of efficiency of light extraction, shown in table specific as follows.
| Light source peak wavelength | 625nm | 525nm | 465nm |
| Normalize efficiency of light extraction | 51.50% | 46.40% | 48.70% |
As can be seen from the above table, etendue can be effectively reduced by the way that solid-state light emitting element to be exposed in air
Amount, while encapsulating microlens array at the light-emitting window of reflector can be such that the efficiency of light extraction of variant wavelength light obtains very
It is apparent to improve.The actual measured value of the normalization efficiency of light extraction of variant wavelength light and it is above-mentioned using optical simulation software into
The result of row analog simulation matches, the dotted line mark on simulation curve as shown in Figure 7.
In conclusion a kind of multispectral Sony ericsson mobile comm ab provided in an embodiment of the present invention, not only high with efficiency of light extraction,
The advantages that Space Angle of small, the variant wavelength light of encapsulation volume is approximately uniform, light collimation is parallel, hot spot is uniform, and it is each
Different wave length light is also approximately uniform in the uniform light spots position of target target surface, effectively improves the clinical effectiveness of optical dynamic therapy.
Referring to Fig.1 shown in 0, the embodiment of the invention also discloses a kind of multispectral radiation source, including wiring board 6 and extremely
A few multispectral Sony ericsson mobile comm ab as described in any one of above-described embodiment, each multispectral Sony ericsson mobile comm ab are orthogonal thereto
In array arrangement assist side 6.
In the present embodiment, when the multispectral Sony ericsson mobile comm ab provided in any one above-mentioned embodiment is controlled as light power
Treatment light source is in use, the orthogonal thereto array arrangement of multispectral Sony ericsson mobile comm ab being first made of the LED chip of different wave length
Multispectral radiation source is formed in the circuit board, and then face is disposed with the first optical lens array and the second optics behind
Lens array, wherein with the folding of multiple orthogonal thereto array arrangements on the first optical lens array of multispectral radiation source
The side of emitting lenslet has multiple orthogonal thereto array arrangements towards the multispectral radiation source on the second optical lens array
Refractive lenslet side backwards to the multispectral radiation source.Wherein, each on the second optical lens array is small
Mirror is overlapped with the center of each lenslet on the first optical lens array, and each side corresponds.
Referring to Fig.1 shown in 1, Figure 11 shows multispectral radiation source provided in an embodiment of the present invention and applies to be controlled in light power
Radiation response figure in treatment.The collimated light beam that multispectral radiation source generates successively passes through the first optical lens array 11 and second
Optical micro lens array 12 carries out Homogenization Treatments, and the light beam direct irradiation finally exported is on target target surface 8.In target target surface
Surface, hot spot caused by the light beam of each different wave length are overlapped mutually, and inhomogeneities is mutually compensated, so as to form one
A equally distributed spot area of illumination power density.
Preferably, multispectral Sony ericsson mobile comm ab includes three solid-state light emitting elements in the present embodiment, respectively 620~
The interior red LED chip with peak wavelength of 630nm wave-length coverage has peak wavelength in 520~530nm wave-length coverage
Green LED chip and the blue-light LED chip in 460~470nm wave-length coverage with peak wavelength.
Further, three are carried out after applying in optical dynamic therapy to multispectral radiation source provided in an embodiment of the present invention
The illumination power density test of kind different wave length light, to obtain the illumination power density distribution situation of variant wavelength light.
Firstly, a target target surface is arranged at the position apart from the second above-mentioned optical lens array 300mm, it to be used for mould
Quasi- patient's treatment zone.Then, it is incident upon respectively to target target surface red with peak wavelength in 620~630nm wave-length coverage
Light, the green light in 520~530nm wave-length coverage with peak wavelength and in 460~470nm wave-length coverage have peak value wave
Long blue light uses the illumination power density for the hot spot that the light that light irradiatometer measures each wavelength is formed on target target surface.
Specifically, target target surface is divided into the square measurement subregion of 10 × 10mm, measurement target is each measurement
The illumination power density values for measuring target are denoted as E by the geometric center point in regioni, while using three-dimensional mapping software, with measurement
The illumination power density values E of targetiFor Z axis coordinate value, measurement target be x, y-coordinate value, illumination is constructed in three-dimensional system of coordinate
Power density curved surface.According to the method, the illumination for the hot spot that different wave length light is formed on target target surface in three is respectively obtained
Power density curved surface, and place them in the same coordinate system, referring to Fig.1 shown in 2.
It can be recognized from fig. 12 that the light of three kinds of different wave lengths is collimated successively by the first optical lens array and the
After two optical lens arrays homogenization, the large area hot spot of homogenization is formd on target target surface, and its illumination power is close
It is similar to spend distribution surface height, is moved to reach raising and be applied using multispectral radiation source provided in an embodiment of the present invention in light
The effect of the multispectral combination therapy mode of light power when power is treated.
It should be noted that multispectral radiation source, the first optical lens array and the second optical lens array shape,
Size etc. can make corresponding change according to light irradiation situation to realize expected technical effect, these changes are
It makes, should all be included in the protection scope of the present invention within the spirit and principles in the present invention.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term " on ", "lower", "inner", "outside"
Set relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply
Relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of multispectral Sony ericsson mobile comm ab, which is characterized in that including package substrate, set on the loading end of the package substrate
It is equipped with reflector, the solid-state light emitting element of at least two different wave lengths is provided in the accommodation space of the reflector；The envelope
Dress substrate two sides are provided at least two pairs of electrodes, and the electrode is connected with the positive and negative anodes of the solid-state light emitting element；
It is also closed off at the light-emitting window of the reflector and is provided with microlens array, the microlens array and the package substrate are flat
Row, and the side of the refractive hemispherical microlenses on the microlens array with multiple orthogonal thereto array arrangements is backwards to described
Solid-state light emitting element.
2. multispectral luminescent device according to claim 1, which is characterized in that the solid-state light emitting element is included in 620
The interior red LED chip with peak wavelength of~630nm wave-length coverage has peak wavelength in 520~530nm wave-length coverage
Green LED chip and in 460~470nm wave-length coverage with peak wavelength blue-light LED chip.
3. multispectral luminescent device according to claim 2, which is characterized in that the red LED chip, the green light
LED chip and blue-light LED chip arrangement in equilateral triangle, the red LED chip, the green LED chip and institute
Stating the mutual distance of blue-light LED chip is 0.1~0.2mm.
4. multispectral luminescent device according to claim 2, which is characterized in that the two sides of the package substrate are provided with three
To the electrode, three pairs of electrodes respectively with the red LED chip, the green LED chip and the blue-light LED chip
Positive and negative anodes be connected.
5. multispectral luminescent device according to claim 1, which is characterized in that the radius of the lenticule be 0.05~
0.25mm, the focal length of the lenticule are 0.8mm, and the distance between rounded bottom surface of the adjacent lenticule is 0mm.
6. multispectral luminescent device according to claim 5, which is characterized in that the radius of the lenticule is 0.15mm.
7. multispectral luminescent device according to claim 1, which is characterized in that the light-emitting window of the reflector be rectangle or
Circle, the shape of the microlens array and the shape of the light-emitting window of the reflector match.
8. multispectral luminescent device according to claim 1, which is characterized in that the height of the reflector and described micro-
The focal length of mirror is identical.
9. multispectral luminescent device according to claim 1, which is characterized in that be arranged on the loading end of the package substrate
There is insulating surface layer, the insulating surface layer is made of thermal conductive ceramic material.
10. a kind of multispectral radiation source, which is characterized in that including wiring board and at least one such as the claims 1~9
Any one of described in multispectral Sony ericsson mobile comm ab, each multispectral orthogonal thereto array arrangement of Sony ericsson mobile comm ab is described
On wiring board.
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| US20060267037A1 (en) * | 2005-05-31 | 2006-11-30 | Samsung Electro-Mechanics Co., Ltd. | Light emitting diode package |
| US20080073662A1 (en) * | 2006-09-21 | 2008-03-27 | Bily Wang | Method of manufacturing high power light-emitting device package and structure thereof |
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