CN101876404A - Light guide device - Google Patents
Light guide device Download PDFInfo
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- CN101876404A CN101876404A CN2009101358376A CN200910135837A CN101876404A CN 101876404 A CN101876404 A CN 101876404A CN 2009101358376 A CN2009101358376 A CN 2009101358376A CN 200910135837 A CN200910135837 A CN 200910135837A CN 101876404 A CN101876404 A CN 101876404A
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- China
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- light
- barred body
- guiding device
- emitting structures
- light emitting
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Abstract
The invention discloses a light guide device which comprises a rod body, a light source and a reflection element. The rod is provided with a plurality of light emitting structures, an end surface and an outer surface; the light emitting structures are arranged on the outer surface and are disconnected with each other; the light source is arranged corresponding to the end surface and is used for emitting a light ray into the rod body; the reflection element surrounds the outer surface and is provided with a plurality of light transmitting openings which respectively expose the light emitting structures. Therefore, after contacting the reflection element and being reflected to the rod body, the light ray contacts the light emitting structures and are guided out of the rod body.
Description
Technical field
The present invention relates to a kind of guiding device, and particularly relate to a kind of a plurality of guiding devices that go out light source that produce.
Background technology
Please refer to Fig. 1, it illustrates the schematic diagram of existing guiding device.Guiding device 100 comprises two light sources 108, a barred body 110, a plurality of diffusion particle 102 and a reflectance coating 106.Diffusion particle 102 is filled in the barred body 110.Reflectance coating 106 is attached to an outer surface 104 of barred body 110, in the light L reflected back guiding device 100 that will touch reflectance coating 106, to avoid scattering and disappearing of light L.102 of diffusion particles are with so that the light L of light source 108 after touching diffusion particle 102, derives it outside barred body 110, and the light of being derived is light La, to reach illumination or specific optical applications.
Yet two light sources 108 but can only produce one and go out light source La, and its purposes is limited to.In addition because the scope in bright dipping zone big (being the large tracts of land bright dipping), cause integral body go out luminous intensity a little less than, so the directive property of light guide is not good yet.
Summary of the invention
The object of the present invention is to provide a kind of guiding device.By a plurality of light emitting structures are set on the barred body of guiding device, reach by minority to go into light source and can produce a plurality of light sources that go out.And, because the single lighting area that goes out light source dwindles, making the light intensity grow, therefore directive property become preferable.So, just, can reach the specific shot purposes.
According to an aspect of the present invention, a kind of guiding device is proposed.Guiding device comprises a barred body, one first light source and a reflecting element.Barred body has a plurality of light emitting structures, one first end face and an outer surface.Light emitting structures is arranged on the outer surface and is disconnected with each other.The corresponding first end face setting of first light source, it enters in the barred body in order to launch one first light.Reflecting element surrounds outer surface and has a plurality of light openings, and those light openings are exposed those light emitting structures respectively.Thus, after first light touches in the reflecting element reflected back barred body, derive barred body by touching light emitting structures again.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended accompanying drawing, be described in detail below:
Description of drawings
Fig. 1 illustrates the schematic diagram of existing guiding device;
Fig. 2 illustrates the schematic diagram according to the guiding device of first embodiment of the invention;
Fig. 3 illustrates the reflecting element schematic diagram of another embodiment of the present invention;
Fig. 4 illustrates barred body and the reflecting element schematic diagram of watching toward direction 4A-4A ' among Fig. 2;
The barred body that Fig. 5 illustrates another embodiment of the present invention more comprises the schematic diagram of diffusion particle;
Fig. 6 illustrates the schematic diagram according to the guiding device of second embodiment of the invention;
Fig. 7 illustrates the schematic diagram according to the backlight module of third embodiment of the invention.
The main element symbol description
100,200,300,400,504: guiding device
102,302: diffusion particle
104: outer surface
106: reflectance coating
108: light source
202: the first light sources
204,304,506: barred body
206,404,508: reflecting element
208,510: light emitting structures
210,512: the first end faces
212,514: the second end faces
214,516: outer surface
216,518: light openings
220: reflector
302: diffusion particle
402: secondary light source
500: backlight module
502: LGP
520: the plane of incidence
L, La, Lb, Lc, Le: light
L1: first light
L2: second light
S: gap
The specific embodiment
First embodiment
Please refer to Fig. 2, it illustrates the schematic diagram according to the guiding device of first embodiment of the invention.Guiding device 200 comprises a barred body 204, a reflecting element 206 and one first light source 202.The material of guiding device 200 can be transparent resin material, for example be Merlon (polycarbonate, PC), polymethyl methacrylate (polymethyl methacrylate, PMMA) or PET (polyethylene terephthalate, PET).
As shown in Figure 2, as long as use a light source, for example be that first light source 202 just can produce a plurality of spot lights or line source, for example produce from the effect of the light Lb of two light emitting structures 208 bright dippings.And light emitting structures 208 can be arranged at a predeterminated position, to reach the special efficacy of preset direction bright dipping.So, the guiding device of present embodiment can be applicable to the illumination of a fine arts product, with specific direction directive artistic products, more can demonstrate the characteristic of artistic products.And because the lighting area of light emitting structures 208 is less, it is relatively large and concentrate and reach preferable directive property therefore to go out luminous intensity.
In addition, the number of light emitting structures 208 also can be more than two and can on average intersperse among outer surface 214, to reach whole periphery the effect of light source bright dipping be arranged all.Say that further the number of the light emitting structures 208 of present embodiment is not in order to limit the present invention.
As shown in Figure 2, reflecting element 206 for example is a reflectance coating, surrounds outer surface 214.Wherein, reflectance coating is arranged on the outer surface 214 in the attaching mode.Reflecting element 206 has 216, two light openings 216 of two light openings and exposes two light emitting structures 208 respectively.Reflecting element 206 is in order to when the first light L1 touches reflecting element 206, in the first light L1 reflected back barred body 204.So, do not have light and scatter and disappear to barred body 204, to increase source efficiency.Wherein, the number of light openings 216 can cooperate the number of light emitting structures 208.
In addition, reflecting element 206 also can be a reflecting layer (not illustrating), is arranged on the outer surface 214 with coating method.Perhaps, please refer to Fig. 3, it illustrates the reflecting element schematic diagram of another embodiment of the present invention.Reflecting element can be a reflector 220, keeps a gap S between itself and the barred body 204.For reaching reflecting effect, the material of reflector 220 can be a metal with high reflectance.Perhaps, the material of a high reflectance can be set at the inner surface of reflector 220, to reach the function of the reflection first light L1.
Please refer to Fig. 4, it illustrates barred body and the reflecting element schematic diagram of watching toward direction 4A-4A ' among Fig. 2.The section profile of light emitting structures 208 is a triangle.So this is non-in order to restriction the present invention, and the section profile of light emitting structures 208 also can be a part or the oval-shaped part of polygon, arc, circle.Perhaps, the section profile of light emitting structures 208 also can be triangle, polygon, circle, arc and oval-shaped any combination.Further say, as long as can reach the effect of bright dipping, the section profile of light emitting structures 208 and indefinite.Therefore, light emitting structures 208 also can be a matsurface, and its section profile is irregular.As long as can reach the section profile of the light emitting structures of light effect, all belong to scope of the present invention.
In addition, first light source 202 also can be the light source of an emission black light, for example is ultraviolet source.At this moment, barred body 204 comprises a plurality of fluorescent particles (not illustrating), is distributed in the barred body 204.When the ultraviolet light of launching when ultraviolet source shone fluorescent particles, fluorescent particles just inspired light.Say that further first light source 202 can be the light source of a visible emitting or the light source of an emission black light.
In addition, implement in the guiding device of aspect at another, barred body also can comprise a plurality of diffusion particles.Please refer to Fig. 5, its barred body that illustrates another embodiment of the present invention more comprises the schematic diagram of diffusion particle.The barred body 304 of guiding device 300 more comprises diffusion particle 302, and diffusion particle 302 is distributed in the barred body 304.
Second embodiment
Please refer to Fig. 6, it illustrates the schematic diagram according to the guiding device of second embodiment of the invention.Second embodiment and the first embodiment difference are that the guiding device 400 of second embodiment more comprises a secondary light source 402.All the other something in common are continued to use same label, just repeat no more at this.
The guiding device 400 of present embodiment uses two light sources, makes by the light Lc of light emitting structures 208 ejaculations stronger.
The 3rd embodiment
Please refer to Fig. 7, it illustrates the schematic diagram according to the backlight module of third embodiment of the invention.The 3rd embodiment and the second embodiment difference are that the 3rd embodiment is applied to a backlight module 500 with guiding device of the present invention.
Reflecting element 508 for example is a reflectance coating, surrounds outer surface 516 and exposes first end face 512 and second end face 514.Wherein, reflectance coating is arranged on the outer surface 516 in the attaching mode.Reflecting element 508 has three light openings 518.Wherein, the number of light openings 518 can cooperate the number of light emitting structures 510, and three light openings 518 are exposed three light emitting structures 510 respectively.Reflecting element 508 is in order to when the first light L1 and the second light L2 touch reflecting element 508, in the first light L1 and the second light L2 reflected back barred body 506.So, just do not have light and scatter and disappear to barred body 506, to increase source efficiency.
In this enforcement, only need two light sources, promptly first light source 202 and secondary light source 402 just can produce spot light or line source directive LGP 502 more than two, for example are to produce three road light Le directive LGPs 502.
Though the light source of present embodiment is with two, promptly first light source 202 and secondary light source 402 be for example explains, and so in other embodiments, the guiding device 504 of backlight module 500 also can have only first light source 202 and secondary light source 402 wherein.Can reach the effect that produces a plurality of spot lights or line source so, equally.
Though the light emitting structures 510 of the guiding device 504 of present embodiment is to be that example explains with three, so in other embodiments, the light emitting structures 510 of guiding device 504 also can be that its number is not subjected to the restriction of present embodiment more than three.
The backlight module of disclosed guiding device of the above embodiment of the present invention and application has multiple advantages, below only enumerates the part advantage and is described as follows:
(1). light emitting structures is arranged on the barred body dividually, makes just can produce a plurality of spot lights or line source by a minority light source.
(2). because the area of light emitting structures bright dipping diminishes, make the relative grow of light intensity, therefore directive property become preferable.
In sum, though disclosed the present invention in conjunction with above preferred embodiment, it is not in order to limit the present invention.Be familiar with this operator in the technical field of the invention, without departing from the spirit and scope of the present invention, can be used for a variety of modifications and variations.Therefore, protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (10)
1. guiding device comprises:
Barred body has a plurality of light emitting structures, one first end face and an outer surface, and wherein those light emitting structures are arranged on this outer surface, and are disconnected with each other;
First light source to should the first end face setting, enters in this barred body in order to launch one first light; And
Reflecting element surrounds this outer surface, and has a plurality of light openings, and wherein those light openings are exposed those light emitting structures respectively;
Thus, this first light is derived this barred body by touching those light emitting structures after touching in this this barred body of reflecting element reflected back again.
2. guiding device as claimed in claim 1, wherein respectively a section profile of this light emitting structures is a part or the oval-shaped part of triangle, polygon, arc, circle.
3. guiding device as claimed in claim 1, wherein this barred body also comprises a plurality of diffusion particles, is distributed in this barred body.
4. guiding device as claimed in claim 1, wherein this barred body also comprises a plurality of fluorescent particles, is distributed in this barred body.
5. guiding device as claimed in claim 4, wherein this first light source is the ultraviolet source of an emission ultraviolet light.
6. guiding device as claimed in claim 1, wherein the material of this barred body is Merlon (polycarbonate, PC), polymethyl methacrylate (polymethyl methacrylate, PMMA) or PET (polyethylene terephthalate, PET).
7. guiding device as claimed in claim 1 also comprises a secondary light source, and this barred body also comprises second end face corresponding to this first end face, and wherein this secondary light source is to should the second end face setting.
8. guiding device as claimed in claim 1, wherein this reflecting element is a reflectance coating, is attached on this outer surface.
9. guiding device as claimed in claim 1, wherein this reflecting element is a reflecting layer, coats on this outer surface.
10. guiding device as claimed in claim 1, wherein this reflecting element is a reflector, keeps a gap with this barred body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101358376A CN101876404A (en) | 2009-04-29 | 2009-04-29 | Light guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101358376A CN101876404A (en) | 2009-04-29 | 2009-04-29 | Light guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101876404A true CN101876404A (en) | 2010-11-03 |
Family
ID=43019027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101358376A Pending CN101876404A (en) | 2009-04-29 | 2009-04-29 | Light guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101876404A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453444A (en) * | 2012-05-31 | 2013-12-18 | 东莞万士达液晶显示器有限公司 | Light guide rod structure |
| CN104427031A (en) * | 2013-09-04 | 2015-03-18 | 富泰华精密电子（郑州）有限公司 | Electronic device |
| CN106029020A (en) * | 2013-12-31 | 2016-10-12 | Ip自由视觉公司 | Luminescent ophthalmic device |
| CN106061443A (en) * | 2013-12-31 | 2016-10-26 | Ip自由视觉公司 | Versatile light-guided ophthalmic treatment system |
| WO2021022418A1 (en) * | 2019-08-02 | 2021-02-11 | 京东方科技集团股份有限公司 | Light guide assembly, light source module and display device |
-
2009
- 2009-04-29 CN CN2009101358376A patent/CN101876404A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453444A (en) * | 2012-05-31 | 2013-12-18 | 东莞万士达液晶显示器有限公司 | Light guide rod structure |
| CN104427031A (en) * | 2013-09-04 | 2015-03-18 | 富泰华精密电子（郑州）有限公司 | Electronic device |
| US9542869B2 (en) | 2013-09-04 | 2017-01-10 | Hon Hai Precision Industry Co., Ltd. | Electronic device with reflection member |
| CN104427031B (en) * | 2013-09-04 | 2017-09-19 | 富泰华精密电子（郑州）有限公司 | Electronic installation |
| CN106029020A (en) * | 2013-12-31 | 2016-10-12 | Ip自由视觉公司 | Luminescent ophthalmic device |
| CN106061443A (en) * | 2013-12-31 | 2016-10-26 | Ip自由视觉公司 | Versatile light-guided ophthalmic treatment system |
| WO2021022418A1 (en) * | 2019-08-02 | 2021-02-11 | 京东方科技集团股份有限公司 | Light guide assembly, light source module and display device |
| CN112771308A (en) * | 2019-08-02 | 2021-05-07 | 京东方科技集团股份有限公司 | Light guide assembly, light source module and display device |
| US11567362B2 (en) | 2019-08-02 | 2023-01-31 | Beijing Boe Optoelectronics Technology Co., Ltd. | Light guide assembly, light source module and display device |
| CN112771308B (en) * | 2019-08-02 | 2023-03-10 | 京东方科技集团股份有限公司 | Light guide assembly, light source module and display device |
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Open date: 20101103 |