CN103123051B - Light source module and light-emitting device - Google Patents
Light source module and light-emitting device Download PDFInfo
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- CN103123051B CN103123051B CN201110370596.0A CN201110370596A CN103123051B CN 103123051 B CN103123051 B CN 103123051B CN 201110370596 A CN201110370596 A CN 201110370596A CN 103123051 B CN103123051 B CN 103123051B
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- light
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- light source
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- leaded light
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Abstract
A kind of light source module, comprises a housing and a light source. This housing, to should one transparent bright dipping side being set light source, is provided with micro-structural on the outer surface of this transparent bright dipping side away from this light source, and this micro-structural comprises plural number the first leaded light cylinder and the plural second leaded light cylinder of this convex outer surfaces relatively. This first light-guiding pillar body is positioned at the middle part of this outer surface, and this second light-guiding pillar body is positioned at the both sides of this first leaded light cylinder, and this first leaded light cylinder and this second leaded light cylinder extend and are perpendicular to one another along this outer surface. The cross sectional shape semicircular in shape that this first leaded light cylinder is vertical with its bearing of trend, the cross sectional shape that this second leaded light cylinder is vertical with its bearing of trend is triangular in shape. The present invention has also disclosed a kind of light-emitting device that uses this light source module.
Description
Technical field
The present invention relates to a kind of light-emitting device and light source module thereof.
Background technology
In at present a lot of electronic equipments, need light illumination, the space taking for reducing light source, conventionally spot light or line source are expanded to area source by LGP, but, between light source and LGP because alignment error exists gap conventionally, and light leakage phenomena can be caused in such gap, thereby cause the briliancy of whole light-emitting device to reduce. In addition, because the light that spot light sends is comparatively concentrated, conventionally there will be " speck " phenomenon on the exiting surface of LGP, i.e. subregion brightness is higher than other regions.
Summary of the invention
In view of this, be necessary to provide a kind of light source module and light-emitting device that overcomes the problems referred to above.
A kind of light source module, comprises a housing and a light source, and this housing is to arranging a transparent bright dipping side by light source. On the outer surface of this transparent bright dipping side away from this light source, be provided with micro-structural, this micro-structural comprises plural number the first leaded light cylinder and the plural second leaded light cylinder of this convex outer surfaces relatively. This plural number the first light-guiding pillar body is positioned at the middle part of this outer surface, and this plural number the second light-guiding pillar body is positioned at the both sides of this plural number the first leaded light cylinder, and this plural number first leaded light cylinder and this plural number second leaded light cylinder extend and are perpendicular to one another along this outer surface. This plural number the first leaded light cylinder cross sectional shape semicircular in shape vertical with its bearing of trend, the cross sectional shape that this plural number the second leaded light cylinder is vertical with its bearing of trend is triangular in shape.
A kind of light-emitting device, comprises a LGP and multiple light source module, and this LGP comprises an incidence surface, and the plurality of light source module relatively this incidence surface arranges. Each this light source module comprises a housing and a light source, and this housing is to arranging a transparent bright dipping side by light source. On the outer surface of this transparent bright dipping side away from this light source, be provided with micro-structural, this micro-structural comprises plural number the first leaded light cylinder and the plural second leaded light cylinder of this convex outer surfaces relatively. This plural number the first light-guiding pillar body is positioned at the middle part of this outer surface, and this plural number the second light-guiding pillar body is positioned at the both sides of this plural number the first leaded light cylinder, and this plural number first leaded light cylinder and this plural number second leaded light cylinder extend and are perpendicular to one another along this outer surface. This plural number the first leaded light cylinder cross sectional shape semicircular in shape vertical with its bearing of trend, the cross sectional shape that this plural number the second leaded light cylinder is vertical with its bearing of trend is triangular in shape.
With respect to prior art, light source module provided by the invention is provided with at the middle part of transparent bright dipping side for the first leaded light cylinder of diffused light to reduce speck, is provided with the second leaded light cylinder for converging light to reduce light leak at the edge of transparent bright dipping side.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the light-emitting device of the present invention's one preferred embodiment, and the light source shell of this light-emitting device comprises a transparent bright dipping side.
Fig. 2 is the schematic perspective view of transparent bright dipping side in Fig. 1.
Fig. 3 is that the III-III of Fig. 1 is to analysing and observe partial view.
Fig. 4 is that the IV-IV of Fig. 1 is to analysing and observe partial view.
Fig. 5 to Fig. 9 is in the time that the section radius of the first leaded light cylinder changes between 0 to 0.08 micron, the intensity map of the LGP exiting surface of this light-emitting device.
Figure 10 exists at the cross section drift angle of the second leaded light cylinderArriveBetween while changing, the illumination change broken line graph of this light-emitting device.
Main element symbol description
| Light-emitting device | 10 |
| Circuit board | 101 |
| LGP | 20 |
| Incidence surface | 201 |
| Exiting surface | 202 |
| Light source module | 30 |
| Light source | 301 |
| Housing | 302 |
| Transparent bright dipping side | 303 |
| Micro-structural | 304 |
| The first leaded light cylinder | 305 |
| The second leaded light cylinder | 306 |
Following detailed description of the invention further illustrates the present invention in connection with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to Fig. 1, the embodiment of the present invention provides a kind of light-emitting device 10, this light-emitting device 10 comprises a LGP 20, this LGP 20 is made with PMMA, PC plastics or other transparent materials, its ranges of indices of refraction is 1.47 ~ 1.55, this LGP 20 comprises an incidence surface 201 and an exiting surface 202, in the present embodiment, this incidence surface 201 and this exiting surface 202 intersect vertically, the less side of area that this incidence surface 201 is this LGP 20, the larger end face of area that this exiting surface 202 is this LGP 20.
This light-emitting device 10 also comprises multiple light source modules 30, and the present embodiment is taking three light source modules as example, these three light source modules 30 be installed on a circuit board 101 and light source module 30 towards the incidence surface 201 of LGP 20.
Refer to Fig. 2 to Fig. 4, each light source module 30 comprises a light source 301 and a housing 302, and the material of this housing 302 is identical with the material of this LGP 20. Light source 301 is arranged in housing 302, and housing 302 corresponding light sources 301 arrange a transparent bright dipping side 303. In the present embodiment, light source 301 is directional light, for example LED, and housing 302 entirety are transparent shell, because LED has directionality, the light that light source 301 sends only penetrates from transparent bright dipping side 303. In other embodiments, light source 301 can be non-directional light, and now housing 302 other sides except transparent bright dipping side 303 all scribble reflective material, to ensure that the light that light source 301 sends only penetrates from transparent bright dipping side 303.
Whole this transparent bright dipping side 303 is provided with micro-structural 304 away from the outer surface of light source 301, micro-structural 304 comprises the plural number that is strip the first leaded light cylinder 305 and the plural second leaded light cylinder 306 of the convex outer surfaces of this transparent bright dipping side 303 relatively, wherein, this the first leaded light cylinder 305 is positioned at the middle part of transparent bright dipping side 303 and the middle part corresponding to the incidence surface 201 of LGP 20, and this second leaded light cylinder 306 is positioned at the both sides up and down of the first leaded light cylinder 305 and the upper lower limb corresponding to the incidence surface 201 of LGP 20. The first leaded light cylinder 305 and the second leaded light cylinder 306 extend and are perpendicular to one another along this outer surface. In the present embodiment, the first leaded light cylinder 305 extends along the direction perpendicular to the incidence surface 201 of light conductor 20 and the boundary line of exiting surface 202, and the second leaded light cylinder 306 extends along the direction that is parallel to the incidence surface 201 of light conductor 20 and the boundary line of exiting surface 202.
The cross sectional shape semicircular in shape that the first leaded light cylinder 305 is vertical with its length direction, there is disperse function in this semicircular cross section to light, thereby light is diffused to the region between each light source module 30, reduces the concentration degree of light, thereby reduces hot spot phenomenon.
Selected a kind of light emitting diode (selecting model is herein the light emitting diode of NSSW206T-E), a kind of housing and a kind of LGP (selecting refractive index is herein housing and the LGP that 1.50 PMMA plastics are made), at the radius of the semi-circular cross-section of the first leaded light cylinder 305 at 0 to 0.08 micron (when μ changes between m), the Luminance Distribution of the LGP exiting surface 202 of this light-emitting device 10 changes as shown in Figures 5 to 9, visible in the time adopting the first leaded light cylinder 305, the Luminance Distribution of exiting surface 202 is even when not adopting the first leaded light cylinder 305, be that speck phenomenon reduces.
After adopting multiple different test of light source, find: when the value of the radius of the semi-circular cross-section of this first leaded light cylinder 305 meets following formula:, whereinFor the radius in this cross section, time Luminance Distribution effect the most even.
The cross sectional shape that the second leaded light cylinder 306 is vertical with its length direction is triangular in shape, and there is converging action in this leg-of-mutton cross section to light, thereby reduces the angle of emergence of light, makes that light is as much as possible to be propagated on incidence surface 201, to reduce light leak.
Selected a kind of light emitting diode (selecting model is herein the light emitting diode of NSSW206T-E), a kind of housing and a kind of LGP (selecting refractive index is herein housing and the LGP that 1.50 PMMA plastics are made), exist at the drift angle of the triangular-section of the second leaded light cylinder 306ArriveBetween while changing, the illumination change of this light-emitting device 10 is as shown in figure 10.
After adopting multiple different test of light source, find: when the value of the drift angle of the triangular-section of this second leaded light cylinder 306 meets following formula:, whereinFor the drift angle in this cross section, time illumination better.
Be understandable that, those skilled in the art also can do other and change in spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (10)
1. a light source module, comprises a housing and a light source, and this housing is saturating to should light source arranging oneBright bright dipping side, is characterized in that: on the outer surface of this transparent bright dipping side away from this light source, be provided with micro-knotStructure, this micro-structural comprises plural number the first leaded light cylinder and plural second leaded light of this convex outer surfaces relativelyCylinder; This plural number the first light-guiding pillar body is positioned at the middle part of this outer surface, this plural number second light-guiding pillar positionIn the both sides of this plural number the first leaded light cylinder, this plural number first leaded light cylinder and this plural number second light-guiding pillarBody along this outer surface extend and this plural number first leaded light cylinder perpendicular to this plural number the second leaded light cylinder;This plural number the first leaded light cylinder cross sectional shape semicircular in shape vertical with its bearing of trend, this plural number secondThe cross sectional shape that leaded light cylinder is vertical with its bearing of trend is triangular in shape.
2. light source module as claimed in claim 1, is characterized in that: this plural number the first leaded light cylinderThe value of the radius in this cross section meets following formula: 0.04 μ m≤R≤0.07 μ m, wherein R is this cross section halfFootpath.
3. light source module as claimed in claim 1, is characterized in that: this plural number the second leaded light cylinderThe value of the drift angle in this cross section meets following formula: 130 °≤θ≤150 °, and the drift angle that wherein θ is this cross section.
4. light source module as claimed in claim 1, is characterized in that: this light source is LED.
5. a light-emitting device, comprises a LGP and multiple light source module, and this LGP comprises that one entersLight face, the plurality of light source module relatively this incidence surface arranges, each this light source module comprise a housing andOne light source, this housing, to should one transparent bright dipping side being set light source, is characterized in that: this transparent bright dippingOn the outer surface of side away from this light source, be provided with micro-structural, this micro-structural comprises this convex outer surfaces relativelyPlural number the first leaded light cylinder and plural the second leaded light cylinder; This plural number first light-guiding pillar body is positioned at that this is outerThe middle part on surface, this plural number the second light-guiding pillar body is positioned at the both sides of this plural number the first leaded light cylinder, and this is multipleSeveral the first leaded light cylinders and this plural number second leaded light cylinder are led along this outer surface extension and this plural number firstLight beam body is perpendicular to this plural number the second leaded light cylinder; This plural number the first leaded light cylinder and its bearing of trend hang downStraight cross sectional shape semicircular in shape, this plural number the second leaded light cylinder cross section shape vertical with its bearing of trendShape is triangular in shape.
6. light-emitting device as claimed in claim 5, is characterized in that: this plural number the first leaded light cylinderThe value of the radius in this cross section meets following formula: 0.04 μ m≤R≤0.07 μ m, wherein R is this cross section halfFootpath.
7. light-emitting device as claimed in claim 5, is characterized in that: this plural number the second leaded light cylinderThe value of the drift angle in this cross section meets following formula: 130 °≤θ≤150 °, and the drift angle that wherein θ is this cross section.
8. light-emitting device as claimed in claim 5, is characterized in that: this light source is LED.
9. light-emitting device as claimed in claim 5, is characterized in that: this light conductor also comprise one with shouldThe exiting surface that incidence surface is crossing.
10. light-emitting device as claimed in claim 5, is characterized in that: this light-emitting device also comprises oneCarry the circuit board of the plurality of light source module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110370596.0A CN103123051B (en) | 2011-11-21 | 2011-11-21 | Light source module and light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110370596.0A CN103123051B (en) | 2011-11-21 | 2011-11-21 | Light source module and light-emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103123051A CN103123051A (en) | 2013-05-29 |
| CN103123051B true CN103123051B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110370596.0A Expired - Fee Related CN103123051B (en) | 2011-11-21 | 2011-11-21 | Light source module and light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103123051B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1627152A (en) * | 2003-12-11 | 2005-06-15 | 鸿富锦精密工业（深圳）有限公司 | Light guiding plate |
| CN1641439A (en) * | 2004-01-14 | 2005-07-20 | 鸿富锦精密工业（深圳）有限公司 | Light guide board and its manufacturing method |
| CN101614368A (en) * | 2008-06-27 | 2009-12-30 | 鸿富锦精密工业（深圳）有限公司 | Light-guide device and have the light source assembly of this light-guide device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200638114A (en) * | 2005-04-22 | 2006-11-01 | Ind Tech Res Inst | The optical device and the light source equipment |
| TWI346813B (en) * | 2006-10-14 | 2011-08-11 | Au Optronics Corp | Diffuser plate and backlight module using the same |
| TWI340259B (en) * | 2006-12-29 | 2011-04-11 | Ind Tech Res Inst | Light guide plate |
| CN101620342B (en) * | 2008-06-30 | 2012-12-26 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and optical plate thereof |
-
2011
- 2011-11-21 CN CN201110370596.0A patent/CN103123051B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1627152A (en) * | 2003-12-11 | 2005-06-15 | 鸿富锦精密工业（深圳）有限公司 | Light guiding plate |
| CN1641439A (en) * | 2004-01-14 | 2005-07-20 | 鸿富锦精密工业（深圳）有限公司 | Light guide board and its manufacturing method |
| CN101614368A (en) * | 2008-06-27 | 2009-12-30 | 鸿富锦精密工业（深圳）有限公司 | Light-guide device and have the light source assembly of this light-guide device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103123051A (en) | 2013-05-29 |
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Granted publication date: 20160511 Termination date: 20171121 |