CN104896321A - Light source module - Google Patents
Light source module Download PDFInfo
- Publication number
- CN104896321A CN104896321A CN201410083343.9A CN201410083343A CN104896321A CN 104896321 A CN104896321 A CN 104896321A CN 201410083343 A CN201410083343 A CN 201410083343A CN 104896321 A CN104896321 A CN 104896321A
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- CN
- China
- Prior art keywords
- optical layers
- light source
- source module
- optical
- refractive index
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Led Device Packages (AREA)
Abstract
The invention discloses a light source module. The light source module comprises a light emitting body and an optical element, wherein the optical element is made of a transparent material having a light curing or heat curing characteristic, and covers the light emitting body. In addition, the optical element consists of a first optical layer and a second optical layer bonded on the first optical layer; the refractive index of the first optical layer is greater than 1; and the refractive index of the second optical layer is greater than 1 and not equal to the refractive index of the first optical layer.
Description
Technical field
The present invention is relevant with light source module; Refer to a kind of light source module that effectively can promote diffusion angle especially.
Background technology
With industrialized progress, carry out ambient lighting through driven by power light source module, one of necessary requirement becoming human habitat, and commercially available light source module is trend now with light emitting diode.
But, refer to Fig. 1, the optical element 40 (namely spreading eyeglass) that existing light source module 2 (for light emitting diode) is bonding on individual layer on this illuminator 30 by an illuminator 30 (i.e. light-emitting diode chip for backlight unit) and one formed, and the light that this illuminator 30 produces will through injection after this optical element 40.But, due to the design of single layer structure, make the light that this illuminator 30 produces, even if through the curvature design of plane of incidence Sin and exit facet Sout after this optical element 20, maximum only to 120 of its angle of flare spends left and right, and effectively cannot promote the illumination range of this light source module 2, and then the applicability of this light source module is caused to reduce.
Summary of the invention
In view of this, object of the present invention is used for providing a kind of light source module, can increase the angle of flare after light injection, and then effectively promote the illumination range of light source module.
Edge is to reach above-mentioned purpose, and light source module provided by the present invention comprises an illuminator and an optical element, and this optical element is with transparent and have photocuring or the material of heat curable properties is made, and covers above this illuminator.In addition, this optical element is that the second optical layers be bonding in this first optical layers with one first optical layers and formed; The refractive index of this first optical layers is greater than 1; The refractive index of this second optical layers is greater than 1 and is not equal to the refractive index of this first optical layers.
According to above-mentioned design, the refractive index of this first optical layers and this second optical layers is between 1.2 ~ 2.0.
According to above-mentioned design, the difference between the refractive index of this first optical layers and the refractive index of this second optical layers is between 0.01 to 0.5.
According to above-mentioned design, the curvature on the surface of binding mutually between this first optical layers with this second optical layers, is different from the curvature of this first optical layers towards the surface of this illuminator.
According to above-mentioned design, the curvature on the surface of binding mutually between this first optical layers with this second optical layers, is different from the curvature on this second optical layers surface of this illuminator dorsad.
According to above-mentioned design, between this first optical layers and this illuminator, be separated with an air dielectric.
According to above-mentioned design, the difference between this first optical layers and refractive index of this air dielectric is between 0.1 to 1.0.
According to above-mentioned design, this illuminator includes a substrate and and is located at light-emitting diode chip for backlight unit on this substrate; This optical element is located on this substrate, and is positioned at above this illuminator.
According to above-mentioned design, the surface that this first optical layers is binded mutually with this second optical layers has identical curvature.
According to above-mentioned design, this first optical layers and this second optical layers one wherein have to make from the material of stickiness, and make this first optical layers or this second optical layers in solidification process, is bonding in other one.
Thus, through the design of the invention described above, just effectively can increase the angle of flare after light injection, and then effectively promote the illumination range of light source module.
Accompanying drawing explanation
Fig. 1 is the structure chart of existing light source module.
Fig. 2 is the structure chart of the light source module of present pre-ferred embodiments.
[symbol description]
1 light source module
10 illuminators
12 substrate 14 light-emitting diode chip for backlight unit
20 optical elements
21 first optical layers
22 second optical layers
S1 ~ S3 surface
G air dielectric
2 light source modules
30 illuminators
40 optical elements
Sin plane of incidence Sout exit facet
Detailed description of the invention
For being illustrated more clearly in the present invention, hereby lift preferred embodiment and coordinate diagram to be described in detail as follows, shown in please refer to the drawing 2, the light source module 1 of present pre-ferred embodiments includes illuminator 10 and an optical element 20, wherein:
This illuminator 10 includes a substrate 12 and and is arranged at light-emitting diode chip for backlight unit 14 on this substrate 12, and this light-emitting diode chip for backlight unit 14 receives electric energy and penetrates after converting thereof into luminous energy.Certainly, on reality is implemented, except using above-mentioned light-emitting diode chip for backlight unit 14, the element that other also can be used can to produce light replaces.
This optical element 20 is transparent, is arranged on this substrate 12, and covers this light-emitting diode chip for backlight unit 14 and be positioned at the top of this light-emitting diode chip for backlight unit 14, and and between this light-emitting diode chip for backlight unit 14 between be separated with an air dielectric G.Upper with regard to composition, this optical element 20 is made up of one first optical layers 21 and second optical layers 22 be bonding in this first optical layers 21.In the present embodiment, this first optical layers 21 and this second optical layers 22 are all have made by the epoxy resin (Epoxy) from stickiness and ultraviolet light polymerization characteristic, and make this first optical layers or this second optical layers in solidification process, be bonding in other one.In addition, the refractive index of this first optical layers 21 is greater than 1, the refractive index of this second optical layers 22 is greater than 1 equally but is not equal to the refractive index of this first optical layers 21, and preferably, the refractive index of this first optical layers 21 and this second optical layers 22 is between 1.2 ~ 2.0, and the difference of the difference between the refractive index of the refractive index of this first optical layers 21 and this second optical layers 21 between 0.01 to 0.5 and between the refractive index of this first optical layers 21 and this air dielectric G is between 0.1 to 1.0.Certainly, on reality is implemented, this above-mentioned first optical layers 21 and this second optical layers 22 have except the epoxy resin of ultraviolet light polymerization characteristic except use, and the transparent material that other also can be selected to have photocuring or heat cure replaces reaching identical object.
In addition, carry out except optical design except above-mentioned with the refractive index of material, the light source module of present pre-ferred embodiments also designs the structure of this first optical layers 21 and this second optical layers 22 further, meaning namely, closely bind with this second optical layers 22 for making this first optical layers 21, the surperficial S2 that this first optical layers 21 is binded with this second optical layers 22 phase has identical curvature, and the curvature of the surperficial S2 binded mutually between this first optical layers 21 with this second optical layers 22, be different from the curvature of this first optics aspect 21 to the surperficial S1 of this light-emitting diode chip for backlight unit 12, also the curvature of this second optical layers 22 surperficial S3 of this light-emitting diode chip for backlight unit 12 is dorsad different from, and through above-mentioned curvature design, can make light by time can have larger deviation angle, and then this light source module 1 reaches preferably optics diffusion effect.
Thus, through the double-decker of this above-mentioned optical element 20 and the design of refractive index and curvature thereof, just about effectively can promoting effect to 165 ~ 170 degree of this light source module 1 optics diffusion, and the illumination range of the light that this light-emitting diode chip for backlight unit 14 produces can be promoted significantly, and then promote the applicability of this light source module 1.
The foregoing is only the better possible embodiments of the present invention, the equivalence that application description of the present invention and claim are done such as changes, and ought to be included in the scope of the claims of the present invention.
Claims (10)
1. a light source module, is characterized in that comprising:
One illuminator; And
One optical element, is with transparent and have photocuring or the material of heat curable properties is made, and covers above this illuminator; This optical element is that the second optical layers be bonding in this first optical layers with one first optical layers and formed; The refractive index of this first optical layers is greater than 1; The refractive index of this second optical layers is greater than 1 and is not equal to the refractive index of this first optical layers.
2. light source module as claimed in claim 1, it is characterized in that, the refractive index of this first optical layers and this second optical layers is between 1.2 ~ 2.0.
3. light source module as claimed in claim 1, it is characterized in that, the difference between the refractive index of this first optical layers and the refractive index of this second optical layers is between 0.01 to 0.5.
4. light source module as claimed in claim 1, is characterized in that, the curvature on the surface of binding mutually between this first optical layers with this second optical layers, is different from the curvature of this first optical layers towards the surface of this illuminator.
5. light source module as claimed in claim 1, is characterized in that, the curvature on the surface of binding mutually between this first optical layers with this second optical layers, is different from the curvature on this second optical layers surface of this illuminator dorsad.
6. light source module as claimed in claim 1, is characterized in that, be separated with an air dielectric between this first optical layers and this illuminator.
7. light source module as claimed in claim 6, it is characterized in that, the difference between the first optical layers and the refractive index of this air dielectric is between 0.1 to 1.0.
8. light source module as claimed in claim 1, is characterized in that, this illuminator includes a substrate and and is located at light-emitting diode chip for backlight unit on this substrate; This optical element is located on this substrate, and is positioned at above this illuminator.
9. light source module as claimed in claim 1, it is characterized in that, the surface that this first optical layers is binded mutually with this second optical layers has identical curvature.
10. light source module as claimed in claim 1, it is characterized in that, this first optical layers and this second optical layers one wherein have to make from the material of stickiness, and make this first optical layers or this second optical layers in solidification process, is bonding in other one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083343.9A CN104896321A (en) | 2014-03-07 | 2014-03-07 | Light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083343.9A CN104896321A (en) | 2014-03-07 | 2014-03-07 | Light source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104896321A true CN104896321A (en) | 2015-09-09 |
Family
ID=54029161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410083343.9A Pending CN104896321A (en) | 2014-03-07 | 2014-03-07 | Light source module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104896321A (en) |
-
2014
- 2014-03-07 CN CN201410083343.9A patent/CN104896321A/en active Pending
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |