CN102128369A - Led lighting device - Google Patents
Led lighting device Download PDFInfo
- Publication number
- CN102128369A CN102128369A CN2010106106209A CN201010610620A CN102128369A CN 102128369 A CN102128369 A CN 102128369A CN 2010106106209 A CN2010106106209 A CN 2010106106209A CN 201010610620 A CN201010610620 A CN 201010610620A CN 102128369 A CN102128369 A CN 102128369A
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- CN
- China
- Prior art keywords
- lighting device
- led
- illumination
- penetrating object
- light penetrating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/49105—Connecting at different heights
- H01L2224/49107—Connecting at different heights on the semiconductor or solid-state body
Landscapes
- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention provides a surface light-emitting lighting device which keeps the advantages such as long service life of LED and does not cause rapid illuminance reduction when the surface light-emitting lighting device is far from the LED or an angle is deviated from an illumination direction of the LED. Furthermore the surface light-emitting light device is provided with more than one LED structure parallelly. The lighting device is characterized by comprising more than one LED structures which are provided in parallel, and a transparent member which surrounds the whole bodies of the LED structure 1 and is formed through diffusing zinc sulphide (ZnS-Ag) compounds.
Description
Technical field
The present invention has been about having utilized the lighting device of LED, in more detail, even about the utilization that also can not reduce away from its illumination of lighting device the lighting device of LED.
Background technology
Utilized the lighting device of LED much more very to see (for example patent documentation 1～2).In addition, as the substitute of general illuminating apparatus, the outward appearance of imitation general illuminating apparatus, and to be undertaken face to the printing opacity of LED luminous by the light diffusion of ground glass also be known (for example non-patent literature 1).
These have utilized the lighting device substitute of LED to compare with general illuminating apparatus, and it is few to have a heating, and power consumption is low, and therefore the advantage that the life-span is long, but owing to be the luminous aggregate of point even exist and put more than one LED, the problem that its illumination is still not enough.Dispose more LED side by side in order to ensure sufficient illumination and to make it to become face luminous, then can make lighting device integral body become high price and produce problem on the cost.
In addition, even more serious is, disposes more LED side by side, can make the heating of LED become problem, if do not consider heat radiation, can produce the problem that heat damage or illumination sharply descend.
For this reason, though utilized the lighting device of LED to have lot of advantages, because the existence of the problems referred to above, and can't substitute general illuminating apparatus fully and use, thereby also can't use as the general illumination device in the clear.
In recent years, to energy-conservation, the requirement of environmental characteristicses such as long service life is more and more higher.But,, have the space of improvement owing to, therefore utilized the lighting device of LED not become general product away from the place of lighting device and its illumination deficiency of place of angle deviating.
[patent documentation 1] spy opens the 2009-111346 communique
[patent documentation 2] spy opens the 2009-286995 communique
[non-patent literature 1] RoHs goods catalogue (PoelLED Series).
Summary of the invention
The present invention has used for reference above-mentioned background technology, its problem is, keeping heating few, power consumption is low, when the life-span, length waited the advantage of LED, can sharply not descend even provide, perhaps its illumination of the direction of illumination of angle deviating LED yet can sharply not descend " lighting device that disposes an above LED structure side by side " away from its illumination of LED.
In order to solve above-mentioned problem, the inventor is through wholesouled discussion, if when finding in each LED the place ahead the light penetrating object of tool light diffusion effect to be set, compares when not being provided with, even its illumination can not reduce a long way off yet, and its illumination can not reduce yet on tilted direction.So, confirm can to become the substitute of general illuminating apparatus by configuration arranged side by side is provided with this light penetrating object more than one LED structure, finished the present invention.
That is, the present invention is the more than one LED structure with configuration arranged side by side, and the lighting device that surrounds the light penetrating object that the diffusion of zinc sulphide (ZnS-Ag) compound is configured to form of these LED structures.It is characterized in that in this LED structure, the place ahead of each LED has " light penetrating object of band light diffusion effect ".
In addition, in the LED structure of the present invention, have and surround the formed light penetrating object of described zinc sulphide compound diffusion configuration to the base-plate buffering layer of LED structure and surround above connecting bonding wire, have " refractive body of light diffusion effect ".
In addition, described illuminating apparatus provided by the invention as thin as a wafer, and face can make when luminous the profile that is configured in each inner LED discern with naked eyes.
In addition, among the present invention, penetrate on the direction on the plane of leaving 1 meter from the central authorities of described lighting device in illumination, central authorities by described lighting device, the illumination that the straight line that vertically stretches out from described lighting device and this plane are the place at 10 ° of angles is more than 1/3 of illumination in the place at 90 ° of angles for the straight line by described lighting device central authorities and with this plane.
According to the present invention, can bring into play heating less and the efficient height, power consumption is low and can cut down the required natural resources of generating, reduces CO
2And favourable to environment, and the speciality of LED such as long service life the time, can provide that its illumination sharply reduces when having solved away from LED, or its illumination is sharply descended the LED face litillumination devices of the shortcoming of degradation LED during the direction of illumination of angle deviating LED.
In addition, the LED structure that the light penetrating object that forms by the more than one zinc that cures of configuration arranged side by side (ZnS-Ag) compound diffusion configuration surrounds can optically provide and the much the same lighting device of general illuminating apparatus performance.That is, even away from LED structure or lighting device, its illumination and general illuminating apparatus similarly can not reduce, the perhaps direction of illumination of angle deviating LED structure or lighting device, and its illumination similarly can not reduce with general illuminating apparatus yet.Therefore, no matter can provide also to be to use from the optics and have the brightness same, the slim lighting device that can replace it to be used with general illuminating apparatus.
Description of drawings
[Fig. 1] utilizes sectional view one example of the general LED in lighting device of the present invention.
The ideograph of the example of the position of " light penetrating object " and LED relation among [Fig. 2] the present invention with light diffusion effect.
The ideograph of the example of the position relation of [Fig. 3] " general light penetrating object " and LED.
The ideograph of the more efficiently example of the position of " light penetrating object " and LED relation among [Fig. 4] the present invention with light diffusion effect.
[Fig. 5] Fig. 2, Fig. 3, the taking measurement of an angle and the schematic diagram of brightness measurement position of the shadow surface of Fig. 4.
[symbol description]
1 p electrode
2 p layers
3 pn articulamentums
5 n layers
6 n layers
7 n electrodes
8 cushions
9 sapphire substrates etc.
10 frequency transformation layers (fluorescence coating such as yttrium)
11 have the light penetrating object of light diffusion effect
12 bonding wires (connecting between electrode)
13?LED
The installation base plate of 14 LED structures
15 general light penetrating objects
The essence focal length of 16 refractive bodies
17 become the directions of 90 degree with light-emitting area
18 become the angles of 40 degree with the direction of light-emitting area
19 places from 1 meter of light-emitting area
20 planar lighting devices (illuminatian plate) light-emitting area
21 measurement points.
The specific embodiment
Below the present invention will be described, but the present invention is not limited to the specific embodiment of the following stated, and can the design scope in carry out any conversion.
Dispose more than one LED structure in the lighting device of the present invention side by side, in each LED structure, LED the place ahead is provided with [light penetrating object with light diffusion effect] (following slightly calling (light penetrating object) in the parantheses).
Fig. 1 is the schematic diagram of a representative example of the sectional view of LED structure 1.In the LED structure 1, surround to the light penetrating object 11 of the substrate of symbol 8 from the direction of illumination of the p electrode shown in the symbol 1 of Fig. 1 (below the occasion that is called (the place ahead) is arranged slightly) and to be set up as illustrated in fig. 2.It is in order to obtain " can not reduce away from its illumination of LED ", " its illumination of angle deviating LED direction of illumination can not reduce yet " these two above-mentioned invention effects that light penetrating object 11 is set.Light penetrating object 11 is made by following method.
Mixture was heated 2 hours in 1250 degree Celsius, the burned material of taking out from heating furnace is washed with after removing residual solvent and drying, classification is pulverized and is made particle roughly keep certain.Also do not possess activity in this stage as light penetrating object.
Dry back classification pulverized make particle roughly keep certain material and zinc sulphide (ZnS-Ag) one to coexist to heat 8 hours 30 minutes with 730 degree Celsius in the heating furnace, the burned material classification pulverizing of taking out is made it to become 20 microns to 40 microns particle, clean with the spirit of vinegar washing, and make it activate with deionized water washing, the particle after the activate with mix as the heat curing-type silicones of clear binder or UV hardening resin and provide practicability as light penetrating object.Is blending ratio 7% to 15% mixed by activate particle and adhesive and be light penetrating object.
As shown in Figure 2, the light penetrating object 11 that constitutes the LED lighting device comprises more than one LED13, and its place ahead is provided with the frequency transformation agent of LED.
Select activating agent when burning till light penetrating object 11 by the initial stage, LED can corresponding efficiently UV-LED or blue led any one, can also utilize the LED of a plurality of kinds.
In the LED structure, the not special restriction of the position relation of LED13 and light penetrating object 11, but the interval between more than one LED13 and the LED13, more than 5 times of width for the cross section of symbol 2 on the plane of illumination of LED13, light penetrating object 11 between luminous point by LED13 and the luminous point of LED13, it is luminous that point source of light carries out face by the light diffusion effect, thereby obtain " can not reduce ", the effect of the present invention of " its illumination of angle deviating LED direction of illumination can not reduce yet " away from its illumination of LED.
The luminous intensity of LED13 exist and 4 near, comparing during by shown in Figure 2 the setting between light penetrating object 11 and the more than one LED13, setting therebetween is as shown in Figure 4 the time, the luminous intensity of LED13 can be brought into play better effect.Because the maximum of luminous intensity exists and 4, shown in symbol 16, the degree of depth that groove is set between the LED and makes groove for from the real estate 9 of LED for the thickness of p electrode surface more than 3 times the time, compare when LED13 being configured and can obtain better effect according to symbol 14.
The shape of lighting device of the present invention has no particular limits, and can be planely, also can be smooth (highly extremely low) cylindrical shape, the cross section be polygonal post shapes any one.
By the following examples and comparative example to the present invention is carried out more specific description, only otherwise surmount invention main idea of the present invention, be not limited to these embodiment.
＜embodiment 1＞
For obtain with general illuminating apparatus 40 type fluorescent lighting fixtures just as brightness, as shown in Figure 4,31 LED13 are configured in equably side by side with on the aluminium base shown in the symbol 14.As LED13, the electric current of the 350mA blue led chip at 1 millimeter angle with 217mA used.That is, the LED13 at 1 millimeter angle is installed with 5 millimeters interval in upright arrangemently, and surround, utilize bonding wire etc. to carry out electric wiring again and make it and to be connected in source power supply by constant-current circuit and commutation diode with light penetrating object 11 with light diffusion effect.Power consumption is lighting device about 1/2 of same shape, and should be service life more than 10 times.
Diffusant as light penetrating object 11 with light diffusion effect, its heating material as the 1st carries out following preparation, the an amount of zinc sulphide (ZnS-Ag) of chloride, as the manganese sulfate (MnSO of (with the weight ratio of zinc sulphide) 0.1% of main activating agent
4), 0.015% hafnium chloride, 0.5% zinc oxide, 3% barium chloride, 3% magnesium chloride, 0.012% iridium chloride, 0.02% silver sulfate and 0.37% gallic oxide, 28% sulphur and 2% sodium chloride are mixed together.Mixed material heated 2 hours with 1250 ℃ in high temperature reaction stove.
Add 1% zinc sulfate ZnSO in the material reacted the burning till of the 1st heating
47H
2O, 0.5% barium chloride (BaCl
2), 1.5% sodium chloride, 2% magnesium chloride, 3% manganese sulfate, 0.5% gallic oxide, and 2.5% sulphur are in the aluminium crucible of packing into, cover aluminium lid, in nitrogen stream,, obtain burning till the crystallization of the cubic system of material as the 2nd stage with 730 ℃ of heating 8 hours 30 minutes.
This stage is for to be converted to a cube crystalline solid zinc sulphide to remaining 6 crystalline solid zinc sulphide, and the major part of cube crystalline solid zinc sulphide is active light diffusion material.After the calcination, crucible with cover is taken out and is cooled to room temperature from heating furnace, and utilize deionized water together to clean the material that mixes.By 2 or 3 s' DI washing clean after, in order to remove unreacted zinc oxide and some cupric oxide that not have mixing, material is cleaned with acetic acid.At least also to be washed clean 2 times by DI by the material after the pickling only, in order to remove the major part of dregs from the light diffusion material, utilize KCN to clean once more then.After cleaning, the entity color of the dull gray that the light diffusion particle had before KCN cleaned becomes bright entity color.
By like this, the light diffusion particle is pulverized by classification, forms 20 microns to 40 microns particle, and the particle that dry back is pulverized by classification roughly keeps necessarily, mixes with heat curing-type silicones as clear binder and uses as light penetrating object.Being mixed with 8% to 10% blending ratio by the light diffusion particle of activate and adhesive is light penetrating object.
In Fig. 5, from the central authorities 21 of the lighting device of embodiment 1, measure illumination penetrate exist every 1 meter on the direction 17 on illumination.It is the illumination in 90 ° place that the straight line 17 that vertically stretches out from described lighting device has been measured this plane angle.
In addition, from lighting device 17 to 20 promptly 18 per 10 degree of direction measure until 10 degree.The measurement of brightness has utilized the luminance meter of opening up the manufacturing of general Kanggong department.
＜comparative example 1＞
In embodiment 1, except being become symbol 15, light penetrating object 11 forms lighting device similarly to Example 1.That is,, form lighting device similarly to Example 1, and equally its illumination is measured except unfavorable usefulness has the light penetrating object of light diffusion effect and only utilized the clear binder.Form 1 is its result.
Table 1 is depicted as the illumination in each place.All units are " cd/m2 " in the table.In addition, in table 1, also shown the brightness on which angle in Fig. 5.In the condition in the table 1, condition A is a situation of not utilizing the light penetrating object of Fig. 3, the situation of condition B for utilizing light penetrating object with light diffusion effect and the substrate 16 between LED as shown in Figure 4 to be provided with groove, condition C is as shown in Figure 2 the situation that does not have the flat state of groove on the substrate between LED 16.
[table 1].
| |
10 degree | 20 degree | 30 degree | 40 degree | 50 degree | 60 degree | 70 degree | 80 degree | 90 degree |
| Condition A | 7330 | 14670 | 25340 | 39080 | 41010 | 52010 | 55870 | 59980 | 61230 |
| Condition B | 28360 | 39480 | 44260 | 52050 | 61270 | 68280 | 68300 | 68560 | 68810 |
| Condition C | 23290 | 28670 | 36330 | 41230 | 53120 | 55230 | 59760 | 60910 | 61900 |
Utilized the lighting device of LED keeping the LED heating few among the present invention, power consumption is low, life-span is long speciality the time, even can not reduce away from its illumination of LED, or its illumination of angle deviating LED direction of illumination can not reduce yet, thereby eliminated the defective of the lighting device that utilizes LED, therefore not only can replace general illuminating apparatus, and on its thickness direction, only be 3mm to 5mm because the luminous surface illuminator of face can manufacture, therefore can extensively be used in each field that needs illumination.
Claims (5)
1. a lighting device is characterized in that having the more than one LED structure of configuration arranged side by side, and the light penetrating object that the diffusion of zinc sulphide (ZnS-Ag) compound is configured to form that surrounds these LED structures.
2. lighting device as claimed in claim 1 is characterized in that surrounding the formed light penetrating object of described zinc sulphide compound diffusion configuration to the base-plate buffering layer of LED structure and surrounding above connecting bonding wire.
3. lighting device as claimed in claim 1 or 2 is characterized in that the refractive body that the formed light penetrating object of described zinc sulphide compound diffusion configuration is had band light diffusion effect.
4. as any described lighting device of claim 1 to 3, it is characterized in that described illuminating apparatus is enclosed in each inner LED structure when face is luminous profile can't discern with naked eyes.
5. ask a described lighting device arbitrarily as claim 1 to 5, it is characterized in that penetrating on the direction on the plane of leaving 1 meter from the central authorities of described lighting device in illumination, central authorities by described lighting device, the illumination that the straight line that vertically stretches out from described lighting device and this plane are the place at 10 ° of angles is more than 1/3 of illumination in the place at 90 ° of angles for the straight line by described lighting device central authorities and with this plane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-005370 | 2010-01-14 | ||
| JP2010005370A JP5710126B2 (en) | 2010-01-14 | 2010-01-14 | LED lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102128369A true CN102128369A (en) | 2011-07-20 |
Family
ID=44266568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106106209A Pending CN102128369A (en) | 2010-01-14 | 2010-12-29 | Led lighting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5710126B2 (en) |
| CN (1) | CN102128369A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019054098A (en) * | 2017-09-14 | 2019-04-04 | 株式会社グリーンウェル | White led element reduced in blue light, and white led unit with white led elements arranged and mounted on wiring board |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002226847A (en) * | 2000-04-11 | 2002-08-14 | Toshiba Corp | Fluorescent substance for display device and field emission type display device using thereof |
| JP2008038051A (en) * | 2006-08-08 | 2008-02-21 | Sumitomo Chemical Co Ltd | Phosphor |
| JP4905069B2 (en) * | 2006-11-09 | 2012-03-28 | 豊田合成株式会社 | Light emitting device and manufacturing method thereof |
| JP4986735B2 (en) * | 2007-06-25 | 2012-07-25 | 京セラ株式会社 | Light source for illumination |
| JP5538671B2 (en) * | 2007-09-19 | 2014-07-02 | シャープ株式会社 | Light emitting device and LED lamp |
| JP4403199B2 (en) * | 2008-11-17 | 2010-01-20 | 株式会社東芝 | Light emitting device |
-
2010
- 2010-01-14 JP JP2010005370A patent/JP5710126B2/en not_active Expired - Fee Related
- 2010-12-29 CN CN2010106106209A patent/CN102128369A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP5710126B2 (en) | 2015-04-30 |
| JP2011146488A (en) | 2011-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110720 |