CN203118993U - Light emitting device and lighting device - Google Patents

Light emitting device and lighting device Download PDF

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Publication number
CN203118993U
CN203118993U CN 201320155596 CN201320155596U CN203118993U CN 203118993 U CN203118993 U CN 203118993U CN 201320155596 CN201320155596 CN 201320155596 CN 201320155596 U CN201320155596 U CN 201320155596U CN 203118993 U CN203118993 U CN 203118993U
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CN
China
Prior art keywords
light
wavelength conversion
conversion portion
fluorophor
emitting
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Expired - Fee Related
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CN 201320155596
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Chinese (zh)
Inventor
高原雄一郎
近藤和也
竹中绘梨果
奈良博美
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Abstract

The utility model provides a light emitting device and a lighting device which both can improve light output efficiency and inhibit nonuniformity of illuminant colors. The light emitting device is provided with multiple light emitting elements, a wavelength conversion portion and a light-transmitting reflection and inhibition portion, the light emitting elements are arranged on a substrate, the wavelength conversion portion comprises phosphors excited by primary light emitted by the light emitting elements and is arranged in a manner of covering the light emitting elements, at least one part of a side opposite to each light emitting element, namely an ejecting side, is formed by a flat face, the light-transmitting reflection and inhibition portion is arranged in a manner of covering the flat face of the wavelength conversion portion, and a side opposite to the wavelength conversion portion is provided with multiple protrusive portions and has no phosphors.

Description

Light-emitting device and lighting device
Technical field
The utility model relates to a kind of light-emitting device and lighting device.
Background technology
It is low and the life-span is long to possess the consumption electric power of light-emitting device of semiconductor light-emitting elements.Therefore, the lighting device of fluorescent lamp and incandescent lamp bulb instead, the lighting device that possesses this light-emitting device sharply enlarges to the importing in market.
For example, have and a kind ofly possess that to have semiconductor light-emitting elements be the lighting device of the light-emitting device of blue LED (Blue Light Emitting Diode) resin-encapsulated.This lighting device is small-sized and easy to use, and can obtain desirable illuminant colour by the kind of selecting to be contained in the fluorophor in the resin.
In addition, in possessing the light-emitting device of semiconductor light-emitting elements, motion has fine concavo-convex technology is set on the surface of the resin that contains fluorophor.
At this, in possessing the light-emitting device of semiconductor light-emitting elements, the light-emitting device that a plurality of semiconductor light-emitting elements set is installed on chip on board encapsulation (the Chip on Board:COB) mode on the substrate is becoming main flow.
But, in the light-emitting device of COB mode, exist when only on the surface of the resin that contains fluorophor micro concavo-convex being set, be difficult to suppress the new problem of the inequality of illuminant colour.
The prior art document
Patent documentation
Patent documentation 1: the spy opens the 2005-268323 communique
The utility model content
Problem to be solved in the utility model is, a kind of delivery efficiency that can improve light is provided, and can suppress light-emitting device and the lighting device of the inequality of illuminant colour.
First mode provides a kind of light-emitting device, and it possesses: a plurality of light-emitting components, and it is located on the substrate; Wavelength conversion portion, it comprises utilization from the fluorophor of a light stimulus of light-emitting component ejaculation, arranges in the mode that covers a plurality of light-emitting components, and at least a portion of the outgoing plane side of the opposition side of light-emitting component side is formed by tabular surface; The reflection suppressing portion of light transmission, its mode with the tabular surface of covering wavelength conversion portion arranges, and has a plurality of convex shaped parts at the opposition side of wavelength conversion portion side, and does not contain fluorophor.
In this light-emitting device, be provided with the wavelength conversion portion that comprises fluorophor and the reflection suppressing portion that does not contain fluorophor.Therefore, can suppress the inequality of illuminant colour in the wavelength conversion portion that comprises fluorophor, can utilize the reflection suppressing portion that does not contain fluorophor to improve the delivery efficiency of light.Under this situation, because the reflection suppressing portion does not contain fluorophor, so the inequality of the illuminant colour that can adjust wavelength conversion portion is not brought influence, can improve the delivery efficiency of light.
In addition, owing to be that at least a portion of outgoing plane side forms tabular surface with the opposition side of the light-emitting component side of wavelength conversion portion, so can make distribution constant in the face of amount of the fluorophor that the short transverse of wavelength conversion portion comprises.Therefore, the inequality of inhibition illuminant colour becomes easy.
Therefore in addition, the reflection suppressing portion has convex shaped part, can suppress the reflection on the boundary face with outer gas, and output comes the once light of self-emission device and is contained in the fluorescence that the fluorophor of wavelength conversion portion sends easily.
In addition, second mode provides a kind of light-emitting device on the basis of first mode, and wherein, the value of refractive index of reflection suppressing portion is below the value of refractive index of wavelength conversion portion.
According to this light-emitting device, can suppress to incide the light that reflects suppressing portion and return the wavelength transformation component.In addition, be made as on an equal basis if will reflect the value of the refractive index of the value of refractive index of suppressing portion and wavelength conversion portion, then can the inhibitory reflex suppressing portion and the interface of wavelength conversion portion on reflection.
In addition, Third Way provides a kind of light-emitting device on the basis of first or second mode, and wherein, convex shaped part has a hemispheroidal at least part and reaches any one form at least of the part of semicylinder at least.
According to this light-emitting device, can further improve the delivery efficiency of light.
In addition, cubic formula provides a kind of lighting device, and it possesses above-mentioned any one light-emitting device and to the control part of light-emitting device supply capability.
According to execution mode of the present utility model, the delivery efficiency that can improve light can be provided, and can suppress light-emitting device and the lighting device of the inequality of illuminant colour.
Description of drawings
Fig. 1 (a) is the constructed profile for the lighting device of illustration first execution mode, and Fig. 1 (b) is the constructed profile of the light-emitting device that possesses of the lighting device for illustration first execution mode;
Fig. 2 is the constructed profile for other form of illustration reflection suppressing portion;
Fig. 3 is for the manufacture method of the light-emitting device of illustration second execution mode, and the flow chart of the manufacture method of lighting device.
Symbol description
3 frames, 5 covers, 6 insulation shells, 7 control parts, 8 lamp heads, 20 substrates, 21 base materials, 23 heat dissipating layers, 29 reflector, 30 light-emitting components, 30a face, 35 reflector, 40 wavelength conversion portions, 40a tabular surface, 40b face, 50 reflection suppressing portions, 50a outgoing plane, 50b convex shaped part, 100 lighting devices, 110 light-emitting devices
Embodiment
Below, with reference to accompanying drawing execution mode is carried out illustration.In addition, in each accompanying drawing, for same inscape mark prosign and the suitably detailed explanation of omission.
In addition, below, as an example lighting device that has a same outward appearance with incandescent lamp bulb is carried out illustration.
In addition, so long as possess the lighting device of aftermentioned light-emitting device, the outward appearance of lighting device and form etc. are not particularly limited.
For example, also can be the lighting device that has the outward appearance identical with the fluorescent lamp of straight tube shape, annular, compact shape etc. or have flat outward appearance etc.
[first execution mode]
Fig. 1 (a), Fig. 1 (b) are for the lighting device of illustration first execution mode and the constructed profile of light-emitting device.
In addition, Fig. 1 (a) is the constructed profile of lighting device, and Fig. 1 (b) is the constructed profile of the light-emitting device that possesses of lighting device.
Fig. 2 is the constructed profile for other form of illustration reflection suppressing portion.
Shown in Fig. 1 (a), in lighting device 100, be provided with light-emitting device 110, frame 3, cover 5, insulation shell 6, control part 7, lamp head 8.
In light-emitting device 110, be provided with substrate 20, be located at a plurality of light-emitting components 30, wavelength conversion portion 40, reflection suppressing portion 50 on the substrate 20.
In addition, the details of the relevant light-emitting device 110 of aftermentioned.
Frame 3 for example can be made as along with from the sectional area cumulative shape of lamp head 8 sides towards cover 5 sides its direction vertical with direction of principal axis.But be not limited to this, for example can and cover 5 etc. size, the suitable changes such as size of lamp head 8 according to light-emitting device 110.Under this situation, if the outer shape of frame 3 and size are made as outer shape and the akin size of size with the neck portion of incandescent lamp bulb, then replace with existing incandescent lamp bulb easily.
Frame 3 for example can be formed by the high material of thermal conductivity.Frame 3 for example can be formed by aluminium (Al), copper (Cu), their metals such as alloy.But be not limited to this, also can be by aluminium nitride (AlN), aluminium oxide (Al 2O 3) etc. formation such as organic material such as inorganic material, high-termal conductivity resin.
Cover 5 is located at an end 3a of frame 3 in the mode that covers light-emitting device 110.Cover 5 can have to the outstanding curved surface of the ejaculation direction of light.Cover 5 has light transmission, the light that penetrates from light-emitting device 110 can be penetrated to the outside of lighting device 100.Cover 5 can be formed by the material with light transmission, for example can be formed by transparent resins such as glass, Merlon, light transparent ceramic etc.In addition, also can be coated with diffusant or fluorophor etc. at the inner face of cover 5 as required, or make the inside of cover 5 contain (in having the material of light transmission, sneaking into diffusant or fluorophor) such as diffusant or fluorophor.
Insulation shell 6 has the mode of tubular with the level.
Insulation shell 6 is located at the inside of frame 3, and an end 6a of insulation shell 6 is outstanding from the end 3b of frame 3.And, maintain control part 7 in the inside of insulation shell 6.
Insulation shell 6 is formed by the material with insulating properties.
Insulation shell 6 for example can be formed by polybutylene terephthalate (PBT) resin etc.
If make insulation shell 6 have insulating properties, then can guarantee the insulating properties with respect to control part 7.
6a is provided with lamp head 8 in the end of insulation shell 6, and therefore, the opening of the end 6a of insulation shell 6 is stopped up by lamp head 8.
Control part 7 remains on the volume inside that is formed at insulation shell 6.
Control part 7 can have the lighting circuit to light-emitting device 110 supply capabilities.Under this situation, lighting circuit for example can be transformed to the interchange 100V of source power supply direct current and supply with to light-emitting device 110.In addition, control part 7 also can have the light adjusting circuit be used to the light modulation of carrying out light-emitting device 110.Under this situation, light adjusting circuit also can carry out light modulation to the light-emitting component 30 of each light-emitting component 30 or each group.
Lamp head 8 can have the shape that can be installed on the lamp socket that incandescent lamp bulb is installed.Lamp head 8 for example can have the mode identical with the E26 shape that determines with the JIS specification or E17 shape etc.But lamp head 8 is not limited to illustrative mode, and change can suit.For example, lamp head 8 also can have the terminal for the pin shape of fluorescent lamp, also can have the terminal for the L font of furred ceiling.
Illustrative lamp head 8 has among Fig. 1 (a): have the tubular of screw thread housing section 8a, be located at the 8b of eyelet portion of the end of housing section 8a.Housing section 8a, the 8b of eyelet portion are electrically connected with control part 7 respectively via distribution 15.
Secondly, light-emitting device 110 is further carried out illustration.
Shown in Fig. 1 (b), be provided with substrate 20, light-emitting component 30, wavelength conversion portion 40, reflection suppressing portion 50 at light-emitting device 110.
Substrate 20 has: have the base material 21 of insulating properties, the heat dissipating layer 23 of being located at a side that is provided with light-emitting component 30 of base material 21, the via hole 25 of thickness direction that connects base material 21 and via hole 27, reflector 29, reflector 35 etc.
Heat dissipating layer 23, via hole 25, via hole 27 for example also can be formed by conductive materials such as copper.
Reflector 29 arranges in the mode that covers heat dissipating layer 23.
In addition, reflector 29 arranges in the mode of the end of the side that light-emitting component 30 is set of overlay path hole 25, via hole 27.
Reflector 29 for example can be made as by implementing the layer that silver-plated processing forms.
Reflector 35 be arranged on heat dissipating layer 23, and the end of the side that light-emitting component 30 is set of via hole 25, via hole 27 around.
Reflector 35 for example can be made as the layer that uses pottery or resin (for example white protective layer etc.) to form.
That is, the side that light-emitting component 30 is set of base material 21 is covered by reflector 29 and reflector 35.
Reflector 29, reflector 35 are reflected the light of incident towards the ejaculation direction (being the top among Fig. 1 (b)) of light-emitting component 30.
The light towards base material 21 sides among the fluorescence that the fluorophor that comprises in the once light that only comes self-emission device 30 of reflector 29, reflector 35 incidents and the wavelength conversion portion 40 sends.
The end of the opposition side of the side that light-emitting component 30 is set of via hole 25, via hole 27 is electrically connected with electrode 31, electrode 32 respectively.
The electrode that electrode 31, electrode 32 differ from one another for polarity (positive electrode, negative electrode).
In addition, via hole 25, via hole 27 are electrically connected with light-emitting component 30 by reflector 29, metal wire 39.
And shown in Fig. 1 (a), electrode 31, electrode 32 are electrically connected with control part 7 respectively via distribution 15.
Like this, light-emitting component 30 is electrically connected with control part 7.
Light-emitting component 30 for example can be so-called self-emission devices such as light-emitting diode, Organic Light Emitting Diode, laser diode.
For example, light-emitting component 30 can be for penetrating the blue LED of blue light.As blue LED, for example can be illustrated in the element that is formed with the layer that is constituted by the GaN based nitride semiconductor on the sapphire substrate.
Light-emitting component 30 is located on the heat dissipating layer 23 by reflector 29.On light-emitting component 30, be respectively equipped with p electrode and n electrode, be electrically connected with metal wire 39 at p electrode and n electrode.
Light-emitting component 30 is provided with a plurality of.The quantity of light-emitting component 30 is not particularly limited, can be according to the purposes of lighting device 100 or the suitable changes such as size of light-emitting component 30.
Light-emitting component 30 can be with rectangular, zigzag, the well-regulated mode setting that sets such as radial, also can be to set mode setting arbitrarily.
Wavelength conversion portion 40 arranges in the mode that covers a plurality of light-emitting components 30, reflector 29.In addition, wavelength conversion portion 40 arranges in the mode of at least a portion in covering reflector 35.
That is, wavelength conversion portion 40 arranges in the mode that covers a plurality of light-emitting components 30, comprises utilization from the fluorophor of a light stimulus of light-emitting component 30 ejaculations.
The opposition side of light-emitting component 30 sides of wavelength conversion portion 40 is that at least a portion of outgoing plane side forms tabular surface 40a.If form tabular surface 40a, then can make the height dimension H of wavelength conversion portion 40 1Constant.If the height dimension H of wavelength conversion portion 40 1Constant, then distribution constant in the face of the amount of the fluorophor that comprises on the short transverse of wavelength conversion portion 40.Therefore, the inequality of illuminant colour that suppresses the tabular surface 40a of wavelength conversion portion 40 easily.
In addition, in this manual, smooth and do not mean that smooth fully.For example so long as have the flatness of the degree of the face that the flowability utilized before the resin solidification forms and get final product.
In addition, as described later, carry out the part zone that tone excises the tabular surface 40a of wavelength conversion portion 40 when whole sometimes, perhaps contain the resin of fluorophor in the part zone coating of tabular surface 40a.Therefore, as long as being at least a portion of outgoing plane side, the opposition side of light-emitting component 30 sides of wavelength conversion portion 40 becomes tabular surface 40a.
In addition, preferably with the height dimension H of wavelength conversion portion 40 1Arrangement pitches size W divided by light-emitting component 30 1The value of gained (being aspect ratio) is made as more than 0.2, below 1.0.If aspect ratio is more than 0.2, below 1.0, then can widens the luminous intensity distribution angle, and can reduce tabular surface 40a and and the tabular surface 40a of the wavelength conversion portion 40 face 40b(side of reporting to the leadship after accomplishing a task of wavelength conversion portion 40) between aberration.
The fluorophor of a light stimulus that is used to self-emission device 30 is contained in wavelength conversion portion 40.Wavelength conversion portion 40 for example can be dispersed with emboliform fluorophor in the organic substance with light transmission or inorganic matter.
Organic substance with light transmission preferably have thixotropy and solidify after Shore hardness be the above resin of D40.If use this resin, then easy shape with wavelength conversion portion 40 is made as desirable shape.In addition, owing to can suppress the distortion that external force is brought, so can prevent the broken string etc. of metal wire 39.
In addition, the reflector 29 that is formed by silver sometimes with outer gas in sulphur and moisture etc. react and melanism.And, because the melanism in reflector 29 can cause reflectivity to reduce, so the delivery efficiency of light may reduce.Therefore, the material of wavelength conversion portion 40 preferably uses the low resin of gas permeability.If the material of wavelength conversion portion 40 uses the low resin of gas permeability, then can interdict outer gas, therefore, can inhibitory reflex layer 29 melanism.
To sum up consider, as the material of wavelength conversion portion 40, for example preferably use with silicone to the resin of principal component etc.
At this, a little less than the engaging force in the reflector 35 that the engaging force in wavelength conversion portion 40 and the reflector 29 by silver-plated formation forms than wavelength conversion portion 40 with by pottery or resin.But, owing to wavelength conversion portion 40 arranges in the mode of at least a portion in covering reflector 35, so can suppress the reduction of peel strength.Therefore, can suppress wavelength conversion portion 40 peels off from substrate 20.
The fluorophor that wavelength conversion portion 40 comprises for example can be YAG fluorophor (yttrium-aluminium-garnet is fluorophor).Be blue LED at light-emitting component 30, the fluorophor that wavelength conversion portion 40 comprises is under the situation of YAG fluorophor, utilizes the blue light excitation YAG fluorophor that penetrates from light-emitting component 30, from the yellow fluorescence of YAG fluorophor radiation.And, by blue light and sodium yellow are mixed, penetrate the light of white from light-emitting device 110.In addition, fluorophor is not limited to the YAG fluorophor, can be according to the purposes of lighting device 100 etc. with the mode that the obtains desirable illuminant colour change that suits.
At this, because the deviation in the manufacturing of light-emitting component 30, deviation appears in light wavelength sometimes that penetrate from light-emitting component 30.If from the light wavelength difference that light-emitting component 30 penetrates, even the amount of the fluorophor that comprises on the short transverse of wavelength conversion portion 40 is identical, illuminant colour also can be different.In this case, as long as change the height dimension H of wavelength conversion portion 40 according to the light wavelength that penetrates from light-emitting component 30 1Get final product.For example, can be with the height dimension H of wavelength conversion portion 40 1The mode that increases comprises the resin of fluorophor in tabular surface 40a coating.In addition, for example can be with the height dimension H of wavelength conversion portion 40 1The mode that reduces is excised tabular surface 40a.In addition, also can contain the resin of fluorophor in the part zone coating of tabular surface 40a, the part zone of perhaps excising tabular surface 40a.
Reflection suppressing portion 50 is located on the tabular surface 40a of wavelength conversion portion 40.
In addition, shown in Fig. 1 (b), owing to the face 40b(side from wavelength conversion portion 40) also have light to penetrate, so convex shaped part 50b described later also is set, be located at tabular surface 40a upward and the convex shaped part 50b on the face 40b so that reflection suppressing portion 50 has on the face 40b of wavelength conversion portion 40.
Come the once light of self-emission device 30 and be contained in the surface (with the boundary face of outer gas) that fluorescence that the fluorophor of wavelength conversion portion 40 sends arrives wavelength conversion portion 40.At this moment, with the surface reflection by wavelength conversion portion 40 of the light on the surface of inciding wavelength conversion portion 40 more than the angle of total reflection, return substrate 20 sides, arrived the surface of wavelength conversion portion 40 by substrate 20 lateral reflections again.If repeat such reflection, the delivery efficiency of light can variation.
Therefore, in the present embodiment, by reflection suppressing portion 50 is set, suppress the reflection on the boundary face with outer gas, make the once light of self-emission device 30 and be contained in the fluorescence that the fluorophor of wavelength conversion portion 40 sends and export easily.
Reflection suppressing portion 50 is formed by the organic substance with light transmission or inorganic matter.
In addition, reflection suppressing portion 50 does not contain fluorophor.If reflection suppressing portion 50 contains fluorophor, distribution can produce deviation in the face of the amount of the fluorophor that the short transverse that wavelength conversion portion 40 and reflection suppressing portion 50 are merged comprises.For example, if reflection suppressing portion 50 comprises fluorophor, in the part on " mountain " of reflecting suppressing portion 50, the amount of fluorophor increases, and in the part of " paddy " of reflecting suppressing portion 50, the amount of fluorophor reduces, and therefore, the generation deviation distributes in the face of the amount of fluorophor.Therefore, if reflection suppressing portion 50 contains fluorophor, the inequality of illuminant colour may increase.
For example, reflection suppressing portion 50 can be formed by the resin with light transmission.As the resin with light transmission, but hybrid resin of illustration epoxy resin, silicone-based resin, plexiglass (PMMA), Merlon (PC), cyclic polyolefin (COP), ester ring type propylene (OZ), allyl diglycol carbonates (ADC), propylene resin, fluorine resin, silicone-based resin and epoxy resin, polyurethane resin etc.
Under this situation, the value of the refractive index that the value that forms the refractive index that the resin of reflection suppressing portion 50 has preferably has with the resin that forms wavelength conversion portion 40 is identical or lower than it.That is, the value of refractive index of reflection suppressing portion 50 is preferably below the value of refractive index of wavelength conversion portion 40.
If adopt the reflection suppressing portion 50 with above-mentioned refractive index, then can suppress to incide the light that reflects suppressing portion 50 and return wavelength transformation component 40.In addition, if make the value of the refractive index that the resin of the value of the refractive index that the resin that forms reflection suppressing portion 50 has and formation wavelength conversion portion 40 has identical, then can inhibitory reflex suppressing portion 50 and the interface of wavelength conversion portion 40 on reflection.For example, can be formed reflection suppressing portion 50 and wavelength conversion portion 40 by identical resin.
Reflection suppressing portion 50 is located at the tabular surface 40a of wavelength conversion portion 40 at least.That is, reflection suppressing portion 50 also can continue to be located at tabular surface 40a part in addition.And reflection suppressing portion 50 has light transmission, does not contain fluorophor.
Reflection suppressing portion 50 has convex shaped part 50b.
The outgoing plane 50a of convex shaped part 50b is preferably curved surface.For example, convex shaped part 50b can have the form of dome shape.
Under this situation, if the form of convex shaped part 50b is made as hemisphere or semicylinder (cross sectional shape is for semicircle), then imports to the light that reflects suppressing portion 50 from wavelength conversion portion 40 and when inciding the outgoing plane 50a of reflection suppressing portion 50, be difficult for by total reflection.Therefore, output imports to the light that reflects suppressing portion 50 from wavelength conversion portion 40 easily.
In addition, also can the gap be set each other at convex shaped part 50b.
But, preferably shown in Fig. 1 (b) convex shaped part 50b join each other or as shown in Figure 2 convex shaped part 50b overlap each other.
Accordingly, can further improve the delivery efficiency of light.
Under the situation that the mode that overlaps each other with convex shaped part 50b arranges, convex shaped part 50 can have a hemispheroidal at least part, reach any one form at least of the part of semicylinder at least.
Form at convex shaped part 50b is under the situation of column (for example semi-cylindrical), can arrange in the convex shaped part 50b of column mode parallel to each other.
In addition, the mode that also can intersect with the convex shaped part 50b of column arranges.For example, also can become cancellate mode with the convex shaped part 50b of column arranges.
The sectional dimension of convex shaped part 50b is not particularly limited.
Under this situation, when the cross sectional shape of convex shaped part 50b is semicircle, the diameter dimension in cross section can be made as more than the 0.1mm, below the 5mm.
In addition, also can a convex shaped part 50b be set for a light-emitting component 30, also can a convex shaped part 50b be set for a plurality of light-emitting components 30.In addition, also can a plurality of convex shaped part 50b be set for a light-emitting component 30.
The form of convex shaped part 50b, quantity, size, convex shaped part 50b can be by suitable decisions such as analogue tests with respect to position of light-emitting component 30 positions etc.For example, by carrying out analogue test etc., can suit to determine to make the position relation etc. of form, quantity, size, convex shaped part 50b and the light-emitting component 30 of the convex shaped part 50b that the delivery efficiency of light uprises.
In the present embodiment, be provided with the wavelength conversion portion 40 of containing fluorophor and the reflection suppressing portion 50 that does not contain fluorophor.Therefore, the inequality of illuminant colour can be in containing the wavelength conversion portion 40 of fluorophor, suppressed, the delivery efficiency of light can be improved by the reflection suppressing portion 50 that does not contain fluorophor.
For example, with be contained in distribute in the face of amount of fluorophor of wavelength conversion portion 40 be made as constant, thereby or be contained in according to the height dimension adjustment that the light wavelength that penetrates from light-emitting component 30 is adjusted wavelength conversion portion 40 in the face of amount of fluorophor of wavelength conversion portion 40 and distribute, the inequality that can suppress thus, illuminant colour.
And, because reflection suppressing portion 50 does not contain fluorophor, so bring influence can not for the inequality of the illuminant colour that wavelength conversion portion 40 adjusts, can improve the delivery efficiency of light.
[second execution mode]
Secondly, the manufacture method of the light-emitting device of illustration second execution mode, and the manufacture method of lighting device.
Fig. 3 is for the manufacture method of the light-emitting device of illustration second execution mode, and the flow chart of the manufacture method of lighting device.
At first, at substrate 20 light-emitting component 30(step S01 is installed).
For example, utilize silver paste etc. a plurality of light-emitting components 30 to be adhered to the surface of heat dissipating layer 23.Then, with between via hole 25 and the light-emitting component 30, between via hole 27 and the light-emitting component 30, adjacent light-emitting component 30 is electrically connected via metal wire 39 to each other.In addition, in Fig. 1 (b), the illustrated light-emitting device of Fig. 2, a plurality of light-emitting components 30 are connected in series.
Under this situation, the installation of light-emitting component 30 for example can use small pieces assembling (die-mount) method to carry out.In addition, the distribution of metal wire 39 formations for example can use terminal conjunction method to carry out.In addition, the manufacturing with the substrate 20 in base material 21, heat dissipating layer 23, via hole 25, via hole 27, reflector 29, reflector 35 etc. can be used existing technology, therefore omits its explanation.
Secondly, select at least one substrate that a plurality of light-emitting components 30 are installed 20, form the 40(of wavelength conversion portion step S02 in the mode that covers a plurality of light-emitting components 30).
Wavelength conversion portion 40 for example can followingly form: use distributor to engage the resin that contains fluorophor, after the resin of joint is interconnected to form the tabular surface 40a of general planar, this tabular surface is solidified.
In addition, wavelength conversion portion 40 for example also can use formation such as print process.
In addition, by carrying out attrition process etc., also can form smooth tabular surface 40a.
Secondly, the light characteristic (for example color temperature) to the structure that is formed with wavelength conversion portion 40 checks (step S03).
The light characteristic inspection for example can be passed through a plurality of light-emitting component 30 supply capabilities, and the color temperature of measuring the light that penetrates via wavelength conversion portion 40 waits to carry out.Under this situation, obtain interior distribution of face of color temperature.
Secondly, the result according to the light characteristic inspection judges whether carry out tone whole (step S04).
Break away from permissible range and be judged to be in the distribution of color temperature and need carry out carrying out tone whole (step S05) under the whole situation of tone.
The result that light characteristic checks, when for example having low regional of color temperature, the respective regions of excision wavelength conversion portion 40.In addition, when for example having high regional of color temperature, contain the resin of fluorophor in the respective regions coating of wavelength conversion portion 40.
In addition, do not need under the whole situation of tone being judged to be, it is whole and enter step S06 not carry out tone.
Secondly, the remaining substrate at the substrate 20 that a plurality of light-emitting components 30 are installed forms the wavelength conversion 40(of portion step S06).
Then, carrying out above-mentioned tone as required puts in order.At this moment, carrying out the tone whole identical with the tone that had before carried out puts in order.Accordingly, do not need all to carry out the light characteristic inspection, therefore, can improve productivity.In addition, the waste of fluorophor and resin can also be eliminated, manufacturing cost can be reduced.
Secondly, form reflection suppressing portion 50(step S07).
Reflection suppressing portion 50 for example can use the distributor joint not contain the resin of fluorophor and it is solidified to form.
In addition, reflection suppressing portion 50 for example also can be used hot padding method, the formation such as (ultraviolet stamped methods) of light stamped method.
In addition, for example also can form the reflection suppressing portion 50 that is constituted by inorganic matter, the reflection suppressing portion 50 that forms is bonded on the tabular surface 40a of wavelength conversion portion 40.
As above can make light-emitting device 110.
Secondly, light-emitting device 110 is packed into frame 3(step S08).
In addition, also cover 5, the distribution of distribution, lamp head 8 and the control part 7 of the packing into of insulation shell 6, control part 7, lamp head 8 etc., light-emitting device 110 and control part 7 etc.
In addition since the packing into of light-emitting device 110, cover 5, insulation shell 6, control part 7, lamp head 8 etc., distribution etc. use known packaging technology, so omit detailed explanation.
As above can make lighting device 100.
According to the manufacture method of present embodiment, can make the delivery efficiency that can improve light, and suppress light-emitting device 110 and the lighting device 100 of the inequality of illuminant colour.
More than, illustration several embodiments of the present utility model, but these execution modes are only pointed out the intention of unqualified the utility model scope as an example.These new execution modes can be implemented with other variety of way, can carry out various omissions, displacement, change etc. in the scope that does not break away from the utility model aim.These execution modes and variation thereof are contained in scope of the present utility model and aim, and are contained in the utility model of putting down in writing in claims and its impartial scope.In addition, the respective embodiments described above can make up enforcement mutually.

Claims (3)

1. light-emitting device is characterized in that possessing:
A plurality of light-emitting components, it is located on the substrate;
Wavelength conversion portion, it contains utilization from the fluorophor of a light stimulus of described light-emitting component ejaculation, and arrange in the mode that covers described a plurality of light-emitting components, in the described wavelength conversion portion, the opposition side of described light-emitting component side is that at least a portion of outgoing plane side is formed by tabular surface;
The reflection suppressing portion of light transmission, its mode with the tabular surface that covers described wavelength conversion portion arranges, and has a plurality of convex shaped parts at the opposition side of described wavelength conversion portion side, and does not contain described fluorophor.
2. light-emitting device as claimed in claim 1, wherein,
Described convex shaped part has a hemispheroidal at least part, and any form at least in the part of semicylinder at least.
3. lighting device, it possesses:
Claim 1 or 2 described light-emitting devices;
Control part to described light-emitting device supply capability.
CN 201320155596 2012-05-30 2013-03-29 Light emitting device and lighting device Expired - Fee Related CN203118993U (en)

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KR102634692B1 (en) 2016-02-12 2024-02-08 삼성전자주식회사 Semiconductor light emitting device package
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CN105972474A (en) * 2015-03-13 2016-09-28 松下知识产权经营株式会社 Light-emitting device, light-emitting unit and detector

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