CN102734655A - Light source module - Google Patents
Light source module Download PDFInfo
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- CN102734655A CN102734655A CN2011100972781A CN201110097278A CN102734655A CN 102734655 A CN102734655 A CN 102734655A CN 2011100972781 A CN2011100972781 A CN 2011100972781A CN 201110097278 A CN201110097278 A CN 201110097278A CN 102734655 A CN102734655 A CN 102734655A
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- light
- source module
- light source
- reflecting layer
- guide device
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Abstract
The invention discloses a light source module, comprising a light-emitting element and a light guiding element, wherein the light guiding element is provided with a light-in surface, a light-out surface, a first surface, a second surface, a first reflection layer and a second reflection layer; the light-emitting element faces to the light-in surface; the light-out surface is connected with the light-in surface; the first surface is connected with the light-out surface and is opposite to the light-in surface; the first surface is not parallel to the light-in surface; the second surface is connected with the first surface and is opposite to the light-out surface; the first reflection layer is configured on the first surface; and the second reflection layer is configured on the second surface. According to the light source module, a light beam emitted by the light-emitting element is guided to the light-out surface through the first reflection layer which is opposite to the light-in surface and is not parallel to the light-in surface for light outgoing, so that the light utilization efficiency of the light source module provided by the invention is increased. Furthermore, the light source module provided by the invention uses the second reflection layer which is opposite to the light-out surface so that the light beam emitted by the light-emitting element uniformly outgoes from the light-out surface, so that the uniformity of the light source module provided by the invention is increased.
Description
Technical field
The present invention relates to a kind of light source module, relate in particular to a kind of light source module that comprises the reflecting layer.
Background technology
The traditional lighting light fixture adopts the cold cathode fluorescent lamp pipe more, and (cold-cathode fluorescentlamps is CCFL) as light emitting source.Cold cathode fluorescent lamp Guan Weifei directive property light source; The light that it sent is toward transmit from all directions, and therefore, the designer is everlasting the other reflection lampshade that is provided with of cold cathode fluorescent lamp pipe so that ray cast is arrived a certain specific region; Yet these are not high through the efficient that the light of reflection lampshade reflection is utilized.In addition; Because the cold cathode fluorescent lamp pipe is linear illuminating source, therefore be difficult for directly obtaining the plane formula light source, therefore by the cold cathode fluorescent lamp pipe; Someone utilizes LGP that the light beam that the cold cathode fluorescent lamp pipe is sent is derived by a surface of LGP, and obtains the plane formula light source.Yet this kind plane formula light source often has uniformity and the not good problem of light utilization ratio.
The known luminaire module that Fig. 1 is disclosed for TaiWan, China patent I309703.Please with reference to Fig. 1, in this known luminaire module, the light beam L that light-emitting component 110 is sent can be reflected by the inclined-plane 120a of light-guide device 120, and by exiting surface So bright dipping.Yet, still have segment beam L ' to cause the light utilization ratio of this known luminaire module not good from the surperficial bright dipping beyond the exiting surface So.
Summary of the invention
The present invention provides a kind of light source module, and the light utilization ratio of this light source module and uniformity (uniformity) are good.
The present invention provides another kind of light source module, and the light utilization ratio of this light source module and uniformity (uniformity) are also good.
The present invention proposes a kind of light source module, and this light source module comprises light-emitting component and light-guide device.Light-guide device has incidence surface, exiting surface, first surface, second surface, first reflecting layer and second reflecting layer.Light-emitting component is towards incidence surface.Exiting surface is connected with incidence surface.First surface is connected in exiting surface and relative with incidence surface.First surface is not parallel to incidence surface.Second surface is connected in first surface and relative with exiting surface.First reflecting layer is disposed on the first surface.Second reflecting layer is disposed on the second surface.
Another embodiment of the present invention proposes a kind of light source module, and this light source module comprises light-emitting component, light-guide device and carrier.Light-guide device has incidence surface, exiting surface, first surface and second surface.Light-emitting component is towards incidence surface.Exiting surface is connected with incidence surface.First surface is connected in exiting surface and relative with incidence surface.First surface is not parallel to incidence surface.Second surface is connected in first surface and relative with exiting surface.Light-emitting component and light-guide device are placed in the carrier.Carrier comprises first reflecting part, second reflecting part and the 3rd reflecting part.First reflecting part is parallel with first surface.Second reflecting part is connected in first reflecting part and parallel with second surface.The 3rd reflecting part is connected in second reflecting part and parallel with incidence surface.
Based on above-mentioned; Light source module of the present invention by with incidence surface relatively and the first not parallel reflecting layer (or first reflecting part) with incidence surface the light beam that light-emitting component sent is directed at the exiting surface bright dipping, and increased the light utilization ratio of light source module of the present invention.In addition, light source module of the present invention utilizes second reflecting layer (second reflecting part) relative with exiting surface to make light beam that light-emitting component sends equably by the exiting surface bright dipping, and has increased the uniformity (uniformity) of light source module of the present invention.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows.
Description of drawings
Fig. 1 is a known luminaire module sketch map.
Fig. 2 is the light source module sketch map of the first embodiment of the present invention.
Fig. 3 is the light source module sketch map of the second embodiment of the present invention.
Fig. 4 is the light source module sketch map of the third embodiment of the present invention.
Fig. 5 is the light source module sketch map of the fourth embodiment of the present invention.
Fig. 6 is the light source module sketch map of the fifth embodiment of the present invention.
Main Reference numeral:
100,200,300,400,500: the light source module
110: light-emitting component
120: light-guide device
120a: inclined-plane
122,124,126,128: the reflecting layer
130: carrier
132: the first ones
132a, 134a, 136a: inner surface
132b: first top
132 ': the first reflecting part
134: the second ones
134 ': the second reflecting part
136: the three ones
136b: depression
136c: second top
The 136 ': the 3rd reflecting part
Si: incidence surface
So: exiting surface
S1: first surface
S2: second surface
S3: the 3rd surface
α, β, θ: angle
L, L ': light beam
H1: first depression
O: opening
The specific embodiment
Fig. 2 is the light source module sketch map of one embodiment of the invention.Please with reference to Fig. 2, the light source module 100 of present embodiment comprises light-emitting component 110, light-guide device 120, reflecting layer 122 and reflecting layer 124.In the present embodiment, light-emitting component 110 can for light emitting diode (light-emitting diode, LED).But the invention is not restricted to this, in other embodiments, can also adopt a cold cathode fluorescent lamp pipe (cold cathode fluorescent lamp, CCFL) or other suitable light-emitting components replace light emitting diode.
Light-guide device 120 has incidence surface Si, exiting surface So, first surface S1 and second surface S2.Light-emitting component 110 is towards incidence surface Si.Exiting surface So is connected with incidence surface Si.First surface S1 is connected in exiting surface So and relative with incidence surface Si, and first surface S1 is not parallel to incidence surface Si.Second surface S2 is connected in first surface S1 and relative with exiting surface So.Reflecting layer 122 is disposed on the first surface S1.Reflecting layer 124 is disposed on the second surface S2.In the present embodiment, the material of light-guide device 120 for example be polymethyl methacrylate (polymethylmethacrylate, PMMA), (polycarbonate, PC), glass, but the present invention is not as limit for Merlon.
What deserves to be mentioned is that in the present embodiment, first surface S1 is not parallel to incidence surface Si.So, after the light beam L that light-emitting component 110 is sent gets into light-guide device 120 by incidence surface Si, just can see through the reflecting layer 122 that is disposed on the first surface S1 and reflex to exiting surface So, and by exiting surface So bright dipping.In other words, reflecting layer 122 can make light beam L that light-emitting component 110 sent by exiting surface So bright dipping effectively, thereby has improved the light utilization ratio of light source module 100.
Say that further first surface S1 and exiting surface So can accompany sharp angle.In the present embodiment, sharp angle for example is between 30 °～60 °.By pressing from both sides configuration reflecting layer 122 on the first surface S1 of a sharp angle, can the light beam L that be passed on the reflecting layer 122 be reflexed to exiting surface So, and then improve light beam L that light-emitting component 110 sent probability by exiting surface So bright dipping with exiting surface So.In the present embodiment, reflecting layer 122 for example can be a white reflecting layer.In addition, second reflecting layer 124 that is disposed on the second surface S2 can reflect away the light beam L of various different angles incidents, and make light beam L can different angles by exiting surface So bright dipping, thereby improve the uniformity (uniformity) of light source module 100.In the present embodiment, second reflecting layer 124 also can be a white reflecting layer.
The light source module 100 of present embodiment can further comprise reflecting layer 128, and this reflecting layer 128 is disposed at the side of light-emitting component 110 with respect to incidence surface Si.Reflecting layer 128 can reflex to incidence surface Si with the light beam L that light-emitting component 110 is sent effectively so that light beam L gets in the light-guide device 120, and then has improved the light utilization ratio of light source module 100.In the present embodiment, reflecting layer 128 can be a white reflecting layer.
Fig. 3 is the light source module sketch map of second embodiment of the invention.Please with reference to Fig. 3, the 200 main designs of light source module and the aforesaid light source module 100 of present embodiment are roughly the same.Because light-guide device 120 is to utilize extrusion technique made; Therefore can't be vertical vertical V-groove with the extrusion direction in incidence surface Si extrusion and optimize light-emitting uniformity; Therefore the light-guide device 120 of light source module 200 also comprises the 3rd surperficial S3; The 3rd surperficial S3 is connected between incidence surface Si and the second surface S2, and the 3rd surperficial S3 and second surface S2 press from both sides an obtuse angles beta.In the present embodiment, obtuse angles beta can be between 165 °～170 °.In other words, the 3rd surperficial S3 is arranged at a near gently sloping surface of incidence surface Si.
The light beam L that light-emitting component 110 is sent mainly penetrates along optical axis A.But, have the light beam L ' of part can depart from optical axis A ejaculation, when light beam L ' penetrated with bigger angle θ, light beam L ' can shine on the 3rd surperficial S3.Because the 3rd surperficial S3 is the gently sloping surface, light beam L ' maybe be at the 3rd surperficial S3 by total reflection, and penetrates in light-guide device 120 in the position far away apart from incidence surface Si.In other words, the light source module 200 of present embodiment can be directed to segment beam L ' apart from incidence surface Si by the 3rd surperficial S3 and just penetrate light-guide device 120 at a distance, thereby promotes the uniformity (uniformity) of the light source module 200 of present embodiment.Certainly, on the 3rd surperficial S3, optionally dispose reflecting layer 126.In the present embodiment, reflecting layer 126 can be a white reflecting layer.
Fig. 4 is the light source module sketch map of third embodiment of the invention.Please with reference to Fig. 4, the light source module 300 main designs of present embodiment are roughly the same with the light source module 200 of second embodiment.But, in the light source module 300 of present embodiment, incidence surface Si optionally has the first depression H1, and the first depression H1 is used for ccontaining light-emitting component 110.Light-emitting component 110 is placed among the first depression H1 of incidence surface Si, the light beam L that light-emitting component 110 is sent is got in the light-guide device 120 by incidence surface Si more efficiently.
Fig. 5 is the light source module sketch map of fourth embodiment of the invention.Please with reference to Fig. 5, the light source module 400 main designs of present embodiment are roughly the same with the light source module 100 of first embodiment.But, the light source module 400 of present embodiment also comprises carrier 130, and wherein light-emitting component 110 and light-guide device 120 are placed in the carrier 130, and carrier 130 has opening O to expose the exiting surface So of light-guide device 120.In the present embodiment, reflecting layer 122 and reflecting layer 124 are disposed between carrier 130 and the light-guide device 120.In detail, in the present embodiment, carrier 130 can comprise first one 132, second ones 134 and the 3rd ones 136.In detail, first one 132 inner surface 132a is parallel with the first surface S1 of light-guide device 120, and reflecting layer 122 is disposed between first surface S1 and first one's 132 inner surface 132a.Be connected with first one 132 for second one 134, second one 134 inner surface 134a is parallel with the second surface S2 of light-guide device 120, and reflecting layer 124 is disposed between second surface S2 and second one's 134 inner surface 134a.Be connected with second one 134 for the 3rd one 136, the 3rd one 136 inner surface 136a that is adjacent to light-guide device 120 can be provided with depression 136b, and wherein light-emitting component 110 and reflecting layer 128 can be placed among the depression 136b.
In addition, carrier 130 also can comprise the first top 132b that is connected in first one 132, and the first top 132b covers the part exiting surface So of light-guide device 120.Carrier 130 also can comprise the second top 136c that is connected in the 3rd one 136, and the second top 136c covers the part exiting surface So of light-guide device 120.The first top 132b and the second top 136c can more firmly be buckled in light-guide device 120 in the opening 0 of carrier 130.
Fig. 6 is light source module 500 sketch mapes of fifth embodiment of the invention.Please with reference to Fig. 6, the light source module 500 of present embodiment comprises light-emitting component 110, light-guide device 120 and carrier 130.Light-guide device 120 has incidence surface Si, exiting surface So, first surface S1, second surface S2.Light-emitting component 110 is towards incidence surface Si.Exiting surface So is connected with incidence surface Si.First surface S1 is connected in exiting surface So and relative with incidence surface Si.First surface S1 is not parallel to incidence surface Si.Second surface S2 is connected in first surface S1 and relative with exiting surface So.Light-emitting component 110 and light-guide device 120 are placed in the carrier 130, and carrier 130 has opening O to expose the exiting surface So of light-guide device 120.
In sum, light source module of the present invention by with incidence surface relatively and not parallel reflecting member with incidence surface the light beam that light-emitting component sent is directed to the exiting surface bright dipping, and increased the light utilization ratio of light source module of the present invention.In addition, the reflecting member that light source module of the present invention utilization and exiting surface are relative makes light beam that light-emitting component sends equably by the exiting surface bright dipping, and has increased the uniformity (uniformity) of light source module of the present invention.Light source module of the present invention also can be directed to segment beam apart from incidence surface and at a distance just penetrates light-guide device by a gently sloping surface (the 3rd surface of the foregoing description just) is set near incidence surface, and then makes the light source module uniformity (uniformity) of present embodiment obtain to promote further.
Though the present invention discloses as above with embodiment, so it is not in order to limiting the present invention, any under those of ordinary skill in the technical field, when can doing a little change and retouching, and do not break away from the spirit and scope of the present invention.
Claims (12)
1. light source module comprises:
One light-emitting component; And
One light-guide device has:
One incidence surface, this light-emitting component is towards this incidence surface;
One exiting surface, this exiting surface is connected with this incidence surface;
One first surface is connected in this exiting surface and relative with this incidence surface, and is not parallel to this incidence surface;
One second surface is connected in this first surface and relative with this exiting surface;
One first reflecting layer is disposed on this first surface; And
One second reflecting layer is disposed on this second surface.
2. light source module according to claim 1, wherein this exiting surface and this first surface press from both sides an acute angle.
3. light source module according to claim 1; Comprise also that wherein one the 3rd surface and is disposed at the 3rd lip-deep the 3rd reflecting layer; The 3rd surface is connected between this incidence surface and this second surface, and the 3rd surface presss from both sides an obtuse angle with this second surface.
4. light source module according to claim 3, wherein this first reflecting layer, this second reflecting layer and the 3rd reflecting layer are wherein at least one is white reflecting layer.
5. light source module according to claim 1 wherein also comprises one the 4th reflecting layer, is disposed at the side of this light-emitting component with respect to this incidence surface.
6. light source module according to claim 5, wherein this first reflecting layer, this second reflecting layer and the 4th reflecting layer are wherein at least one is white reflecting layer.
7. light source module according to claim 1, wherein this first reflecting layer and this second reflecting layer are wherein at least one is white reflecting layer.
8. light source module according to claim 1, wherein this incidence surface has one first depression, and this first depression is used for ccontaining this light-emitting component.
9. light source module according to claim 1 wherein also comprises a carrier, and this light-emitting component and this light-guide device are placed in this carrier, and this carrier has an opening to expose this exiting surface of this light-guide device.
10. light source module according to claim 9, wherein this carrier also has:
One first top covers this exiting surface of part of this light-guide device; And
One second top with respect to first top, and covers this exiting surface of part of this light-guide device, and this first top and this second top are fixed in this light-guide device in this opening of this carrier.
11. a light source module comprises:
One light-emitting component;
One light-guide device has:
One incidence surface, this light-emitting component is towards this incidence surface;
One exiting surface, this exiting surface is connected with this incidence surface;
One first surface is connected in this exiting surface and relative with this incidence surface, and is not parallel to this incidence surface; And
One second surface is connected in this first surface and relative with this exiting surface; And
One carrier, this light-emitting component and this light-guide device are placed in this carrier, and this carrier comprises:
One first reflecting part, parallel with this first surface;
One second reflecting part is connected in this first reflecting part and parallel with this second surface; And
One the 3rd reflecting part is connected in this second reflecting part and parallel with this incidence surface.
12. light source module according to claim 11, wherein this carrier also has:
One first top covers this exiting surface of part of this light-guide device; And
One second top with respect to first top, and covers this exiting surface of part of this light-guide device, and this first top and this second top are fixed in this light-guide device in one opening of this carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100972781A CN102734655A (en) | 2011-04-15 | 2011-04-15 | Light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100972781A CN102734655A (en) | 2011-04-15 | 2011-04-15 | Light source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734655A true CN102734655A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100972781A Pending CN102734655A (en) | 2011-04-15 | 2011-04-15 | Light source module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI507636B (en) * | 2013-05-27 | 2015-11-11 | Radiant Opto Electronics Corp | Lighting device |
| TWI554725B (en) * | 2013-05-27 | 2016-10-21 | Lighting device |
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| TW577549U (en) * | 2003-01-30 | 2004-02-21 | Toppoly Optoelectronics Corp | Back light module for flat display device |
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| CN101071226A (en) * | 2006-05-09 | 2007-11-14 | 比亚迪股份有限公司 | Backlight source for liquid crystal display device and liquid crystal display device using same |
| CN201297578Y (en) * | 2008-11-26 | 2009-08-26 | 光合机电有限公司 | Anti-dazzle LED plane light source for reading lamp |
| CN201302065Y (en) * | 2008-11-28 | 2009-09-02 | 常州丰盛光电科技股份有限公司 | LED fluorescent lamp |
| CN101532641A (en) * | 2008-03-14 | 2009-09-16 | 智相精密光学股份有限公司 | Light source device |
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2011
- 2011-04-15 CN CN2011100972781A patent/CN102734655A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0573268A2 (en) * | 1992-06-01 | 1993-12-08 | Sharp Kabushiki Kaisha | Liquid crystal display |
| TW577549U (en) * | 2003-01-30 | 2004-02-21 | Toppoly Optoelectronics Corp | Back light module for flat display device |
| CN1677187A (en) * | 2004-03-31 | 2005-10-05 | 广辉电子股份有限公司 | Backlight module group of liquid crystal displaying device |
| CN101071226A (en) * | 2006-05-09 | 2007-11-14 | 比亚迪股份有限公司 | Backlight source for liquid crystal display device and liquid crystal display device using same |
| CN101532641A (en) * | 2008-03-14 | 2009-09-16 | 智相精密光学股份有限公司 | Light source device |
| CN201297578Y (en) * | 2008-11-26 | 2009-08-26 | 光合机电有限公司 | Anti-dazzle LED plane light source for reading lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI507636B (en) * | 2013-05-27 | 2015-11-11 | Radiant Opto Electronics Corp | Lighting device |
| TWI554725B (en) * | 2013-05-27 | 2016-10-21 | Lighting device |
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Application publication date: 20121017 |