CN107290818A - A kind of light guide structure and device - Google Patents
A kind of light guide structure and device Download PDFInfo
- Publication number
- CN107290818A CN107290818A CN201710641084.0A CN201710641084A CN107290818A CN 107290818 A CN107290818 A CN 107290818A CN 201710641084 A CN201710641084 A CN 201710641084A CN 107290818 A CN107290818 A CN 107290818A
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- Prior art keywords
- light
- guide structure
- curved surface
- light guide
- reflecting curved
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- 239000011148 porous material Substances 0.000 claims description 6
- 230000004044 response Effects 0.000 abstract description 11
- 230000005855 radiation Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention is applied to guide-lighting field there is provided a kind of light guide structure and device, and light guide structure includes：Light guide structure body, light guide structure body includes：The first side and second side being oppositely arranged；Light source incidence end and light exit side in the structure that the first side and second side are surrounded；At least one first reflecting curved surface between the light source incidence end and light exit side；Respectively positioned at the second reflecting curved surface, the 3rd reflecting curved surface of the both sides of first reflecting curved surface；Light enters the light guide structure body by the light source incidence end, is exported after multiple reflections from the light exit side.The light guide structure that the present invention is provided, each point light intensity is essentially identical when light reaches light exit side, and in light exit side diffusing reflection occurs for emergent light, human eye can observe emergent ray in all angles, solve light pass through it is uneven and cause the problem of light source radiation response is undesirable in exit facet light and light distribution after existing light guide structure.
Description
Technical field
The invention belongs to guide-lighting field, more particularly to a kind of light guide structure and device.
Background technology
With the development of display science and technology, various optical articles are constantly weeded out the old and bring forth the new.Wherein most display is all used and led
Photo structure guides light source, and the light that light source is provided is injected after light guide structure, by the guiding of light guide structure towards specific direction
Project.
At present, in these optical articles, some special-effects are usually reached via light guide structure using light source, but
Light guide structure indoor design mostly only consider it is just no can smoothly export, derived light compared with the light of light source outgoing, loss
Whether in a rational scope, but lack the consideration to light source radiation response, also lacked with this and light guide structure is existed
This is easily designed, and often leads to that the light of outgoing is distributed in irradiation area light and light distribution is uneven and cause light source to irradiate
The problem of effect is undesirable.
The content of the invention
The embodiment of the present invention provides a kind of light guide structure, it is intended to solve light by after existing light guide structure in outgoing
Face light distribution is uneven with light distribution, causes the problem of light source radiation response is undesirable.
The embodiment of the present invention is achieved in that a kind of light guide structure, including light guide structure body, the light guide structure sheet
Body includes：The first side and second side being oppositely arranged；
Light source incidence end and light exit side in the structure that the first side and second side are surrounded；Positioned at institute
State at least one first reflecting curved surface between light source incidence end and light exit side；
Respectively positioned at the second reflecting curved surface, the 3rd reflecting curved surface of the both sides of first reflecting curved surface；
Light enters the light guide structure body by the light source incidence end, is led after multiple reflections from the light exit side
Go out.
The embodiment of the present invention also provides a kind of guiding device, and the guiding device includes one or more such as claim 1
Light guide structure in~10 described in any one.
The light guide structure that the present invention is provided, is provided with the first reflecting curved surface, second between light source incidence end and light exit side
Reflecting curved surface and the 3rd reflecting curved surface, it is bent in above-mentioned first reflecting curved surface, the second reflection after light is incident from light source incidence end
Pass through multiple reflections between face and the 3rd reflecting curved surface, finally the light intensity of each point is essentially identical when reaching light exit side, and light
Exit end is a frosting, and emergent light occurs diffusing reflection in light exit side and causes human eye to observe outgoing in all angles
Light, solve light pass through it is uneven and cause light in the distribution of exit facet light and light distribution after existing light guide structure
The problem of source radiation response is undesirable.
Brief description of the drawings
Fig. 1 is a kind of light guide structure stereogram that the embodiment of the present invention one is provided；
Fig. 2 is a kind of reflection path schematic diagram for light guide structure internal light that the embodiment of the present invention one is provided；
Fig. 3 is a kind of light guide structure front view that the embodiment of the present invention one is provided；
Fig. 4 is a kind of assembling schematic diagram for guiding device that the embodiment of the present invention two is provided.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, and is not intended to be limiting
The present invention." one kind ", " described " and "the" of singulative used in the embodiment of the present invention and appended claims
It is also intended to including most forms, unless context clearly shows that other implications.It is also understood that term used herein
"and/or" refers to and may combined comprising one or more associated any or all of project listed.
It will be appreciated that though various letters may be described using term first, second, third, etc. in embodiments of the present invention
Breath, but these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.Depend on
Linguistic context, word as used in this " if " can be construed to " ... when " or " when ... " or " in response to true
It is fixed ".Moreover, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that bag
To include process, method, article or the equipment of a series of key elements not only include those key elements, but also including being not expressly set out
Other key elements, or also include for this process, method, article or the intrinsic key element of equipment.
The light guide structure that the present invention is provided, is provided with the first reflecting curved surface, second between light source incidence end and light exit side
Reflecting curved surface and the 3rd reflecting curved surface, it is bent in above-mentioned first reflecting curved surface, the second reflection after light is incident from light source incidence end
Pass through multiple reflections between face and the 3rd reflecting curved surface, finally the light intensity of each point is essentially identical when reaching light exit side, and light
Exit end is a frosting, and emergent light occurs diffusing reflection in light exit side and causes human eye to observe outgoing in all angles
Light, solve light pass through it is uneven and cause light in the distribution of exit facet light and light distribution after existing light guide structure
The problem of source radiation response is undesirable.
A kind of light guide structure that Fig. 1~Fig. 2 is provided by the embodiment of the present invention one.
Embodiment one
The embodiment of the present invention provides a kind of light guide structure, including：Light guide structure body 11, light guide structure body 11 includes：
The first side 111 being oppositely arranged and second side 112；
The incidence end 113 of light source 15 and light exit side in the structure that first side 111 and second side 112 are surrounded
114；At least one first reflecting curved surface 115 between the incidence end 113 of light source 15 and light exit side 114；
Respectively positioned at the second reflecting curved surface 116, the 3rd reflecting curved surface 117 of the both sides of the first reflecting curved surface 115；
Light enters light guide structure body 11 by the incidence end 113 of light source 15, is led after multiple reflections from light exit side 114
Go out.
In embodiments of the present invention, light guide structure includes light guide structure body 11, and light guide structure body 11 includes the first side
Face 111, second side 112, the incidence end 113 of light source 15 and light exit side 114, wherein first side 111 and the phase of second side 112
To setting, the incidence end 113 of light source 15 is arranged at the structure that first side 111 is surrounded with second side 112 with light exit side 114
On, and the space that first side 111, second side 112, the incidence end 113 of light source 15 and light exit side 114 are constituted is available for light anti-
Penetrate and conduct.When in use, beam projecting direction of the incidence end 113 of light source 15 just to light source 15, road is provided for entering for light
Footpath, final light is projected through light exit side 114.
In embodiments of the present invention, light guide structure body also includes：Between the incidence end 113 of light source 15 and light exit side 114
At least one first reflecting curved surface 115 and respectively positioned at the second reflecting curved surface 116 of the both sides of the first reflecting curved surface 115 and the
Three reflecting curved surfaces 117.Wherein, the first reflecting curved surface 115, the second reflecting curved surface 116 and the 3rd reflecting curved surface 117 are all smooth songs
Face, can be such that light is constantly reflected after light guide structure is entered.
In embodiments of the present invention, the first reflecting curved surface 115 is that first side 111 and the are penetrated on light guide structure body 11
The pore structure 118 of two side faces 112, the border of pore structure 118 is annular smooth surface, wherein, the profile of annular smooth surface can
Formed for one or more combinations in circular arc, elliptic arc, parabola, involute, such as in the portion close to the incidence end 113 of light source 15
Set up separately and be set to parabola, circular arc etc. is set in the part close to light exit side 114, as long as ensureing that whole profile will not form point
Sharp point or or curved section, this ensure that the rounding of annular smooth curved surface profile, also for ensureing that light enters
It after penetrating, repeatedly can fully be reflected inside light guide structure, blackening not had or the generation of bright spot is crossed, finally in light exit side light
Line is evenly distributed and light distribution is uniform, and the radiation response of light source 15 is fabulous.And at least part of position of the first reflecting curved surface 115
In light from the direct projection of 15 incidence end of light source 113 on the path 12 of light exit side 114, i.e., as shown in Fig. 2 light is from the incidence end of light source 15
113 direct projections necessarily pass pore structure 118 in the path 12 of light exit side 114, are in order that incident from 15 incidence end of light source 113
Light also can be in light guide structure multiple reflection inside, rather than directly reaches light exit side 114, forms a very bright region,
Cause light distribution uneven.
In embodiments of the present invention, the second reflecting curved surface 116 and the 3rd reflecting curved surface 117 from the incidence end 113 of light source 15 to
Light exit side 114 is extended in the way of diffusion, and the second reflecting curved surface 116, the profile of the 3rd reflecting curved surface 117 are by circular arc, ellipse
One or more combinations in arc, parabola, involute are formed, similar with the first reflecting curved surface 115, also for guarantee light
After line is incident, it can fully be reflected inside light guide structure, be finally evenly distributed in light exit side light and light distribution is equal
It is even, blackening is not had or is crossed the generation of bright spot and is influenceed the radiation response of light source 15.
Fig. 2 is the index path inside a kind of light guide structure provided in an embodiment of the present invention.
In embodiments of the present invention, when in use, it is just right that the incidence end 113 of light source 15 of light guide structure is placed in for light guide structure
The position in the beam projecting direction of light source 15, makes light levels enter in light guide structure, because the light of light source 15 is diverging, root
It is different according to the angle of diverging, after light enters inside light guide structure, the first reflecting curved surface 115, second may be radiated at anti-
Penetrate in one of curved surface 116, the 3rd reflecting curved surface 117, first side 111, second side 112, then reflect former according to light
Reason, can reflex to another above-mentioned curved surface or side and continue through multiple reflections, finally, light passes through multiple reflections, reach
The light light of the outgoing of light exit side 114 is evenly distributed, and light distribution is uniform.
As shown in figure 3, in of the invention one preferably embodiment, the pore structure 118 of the first reflecting curved surface 115 formation
For the aperture of an elliptical shape, central point is O, and the second reflecting curved surface 116 and the profile of the 3rd reflecting curved surface 117 are parabola,
And light passes through central point O, now light guide structure symmetry from the direct projection of 15 incidence end of light source 113 in the path 12 of light exit side 114
Preferably, and because parabola and elliptic contour to seamlessly transit degree preferable so that angle tune of the light in the back reflection of incidence
Whole more satisfactory, therefore when reaching light exit side 114, either uniform light degree or uniform intensity degree be all very
It is preferable；And the incidence end of light source 15 is a concave surface, increases the dispersion angle of the light of light source 15, light is more reached second
The reflecting curved surface 117 of reflecting curved surface 116 and the 3rd, reflects inside light guide structure, greatly improves light source in multiple times as far as possible
15 radiation response；And then, exit end 114 is a frosting, emergent ray is occurred diffusing reflection, adds the equal of emergent ray
Even degree.
The light guide structure that the present invention is provided, is provided with the first reflecting curved surface, second between light source incidence end and light exit side
Reflecting curved surface and the 3rd reflecting curved surface, it is bent in above-mentioned first reflecting curved surface, the second reflection after light is incident from light source incidence end
Pass through multiple reflections between face and the 3rd reflecting curved surface, finally the light intensity of each point is essentially identical when reaching light exit side, and light
Exit end is a frosting, and emergent light occurs diffusing reflection in light exit side and causes human eye to observe outgoing in all angles
Light, solve light pass through it is uneven and cause light in the distribution of exit facet light and light distribution after existing light guide structure
The problem of source radiation response is undesirable.
A kind of assembling schematic diagram of guiding device of the offer of the embodiment of the present invention two is provided.
Embodiment two
In embodiments of the present invention, a kind of guiding device, loop configuration is constituted by four light guide structures side by side, it is possible to understand that
, multiple light guide structures can be also arranged side by side as straight type configuration etc., and the embodiment of the present invention carries out illustrating by taking loop configuration as an example
It is bright, as shown in Figure 4.
In embodiments of the present invention, light guide structure includes：Light guide structure body 11, the light guide structure body 11 includes：
The first side 111 being oppositely arranged and second side 112；
The incidence end 113 of light source 15 and light in the structure that the first side 111 is surrounded with second side 112 go out
Penetrate end 114；At least one first reflecting curved surface 115 between the incidence end 113 of light source 15 and light exit side 114；
Respectively positioned at the second reflecting curved surface 116, the 3rd reflecting curved surface 117 of the both sides of first reflecting curved surface 115；
Light enters the light guide structure body 11 by the incidence end 113 of light source 15, from the light after multiple reflections
Exit end 114 is exported.
In embodiments of the present invention, guiding device includes four incidence ends 113 of light source 15, directly screws installed in be assembled
In structure 13, and four incidence ends 113 of light source 15 all just allow the light from light source 15 with maximum to the installation position 14 of light source 15
Ratio enters light guide structure body 11, luminous energy is consumed as small as possible, it is ensured that the light intensity of light exit side 114, improves light profit
With rate.
The light guide structure that the present invention is provided, is provided with the first reflecting curved surface, second between light source incidence end and light exit side
Reflecting curved surface and the 3rd reflecting curved surface, it is bent in above-mentioned first reflecting curved surface, the second reflection after light is incident from light source incidence end
Pass through multiple reflections between face and the 3rd reflecting curved surface, finally the light intensity of each point is essentially identical when reaching light exit side, and light
Exit end is a frosting, and emergent light occurs diffusing reflection in light exit side and causes human eye to observe outgoing in all angles
Light, solve light pass through it is uneven and cause light in the distribution of exit facet light and light distribution after existing light guide structure
The problem of source radiation response is undesirable.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (12)
1. a kind of light guide structure, it is characterised in that including：Light guide structure body, the light guide structure body includes：It is oppositely arranged
First side and second side；
Light source incidence end and light exit side in the structure that the first side and second side are surrounded；
At least one first reflecting curved surface between the light source incidence end and light exit side；
Respectively positioned at the second reflecting curved surface, the 3rd reflecting curved surface of the both sides of first reflecting curved surface；
Light enters the light guide structure body by the light source incidence end, is exported after multiple reflections from the light exit side.
2. light guide structure as claimed in claim 1, it is characterised in that first reflecting curved surface, the second reflecting curved surface and
Three reflecting curved surfaces are smooth surface.
3. light guide structure as claimed in claim 2, it is characterised in that first reflecting curved surface is the light guide structure body
On penetrate the pore structure of the first side and second side, the border of the pore structure is annular smooth surface.
4. light guide structure as claimed in claim 3, it is characterised in that the profile of the annular smooth surface is by circular arc, ellipse
One or more combinations in arc, parabola, involute are formed.
5. guiding device as claimed in claim 1, it is characterised in that first reflecting curved surface is at least part of to be located at light
From light source incidence end direct projection on the path of the light exit side.
6. light guide structure as claimed in claim 5, it is characterised in that first reflecting curved surface is centrally located at light from described
The direct projection of light source incidence end is on the path of the light exit side.
7. light guide structure as claimed in claim 2, it is characterised in that second reflecting curved surface and the 3rd reflecting curved surface are by institute
Light source incidence end is stated to the light exit side in the way of spreading to extend.
8. guiding device as claimed in claim 2, it is characterised in that second reflecting curved surface, the wheel of the 3rd reflecting curved surface
Wide one or more combinations by circular arc, elliptic arc, parabola, involute are formed.
9. light guide structure as claimed in claim 1, it is characterised in that the light source incidence end is a plane or concave surface.
10. light guide structure as claimed in claim 1, it is characterised in that the light exit side is a frosting, and other faces are
High smooth surface.
11. a kind of guiding device, it is characterised in that the guiding device includes one or more as appointed in claim 1~10
Light guide structure described in meaning one.
12. guiding device as claimed in claim 11, it is characterised in that when the guiding device includes multiple guide-lighting knots
During structure, the multiple light guide structure is arranged side by side as straight type configuration or loop configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710641084.0A CN107290818A (en) | 2017-07-31 | 2017-07-31 | A kind of light guide structure and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710641084.0A CN107290818A (en) | 2017-07-31 | 2017-07-31 | A kind of light guide structure and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107290818A true CN107290818A (en) | 2017-10-24 |
Family
ID=60104009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710641084.0A Pending CN107290818A (en) | 2017-07-31 | 2017-07-31 | A kind of light guide structure and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107290818A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083936A (en) * | 1992-09-02 | 1994-03-16 | 莫托罗拉公司 | The wedge that in display device, is used for the branch luminous intensity distribution |
| US6193383B1 (en) * | 1998-03-27 | 2001-02-27 | Citizen Electronics Co., Ltd. | Linear light source unit |
| CN103163572A (en) * | 2011-12-08 | 2013-06-19 | 欧司朗股份有限公司 | Lens, light emitting device and scanner |
| EP2851717A1 (en) * | 2012-06-06 | 2015-03-25 | Huawei Device Co., Ltd. | Light guiding device, light emitting apparatus, electronic apparatus and key |
| CN105465738A (en) * | 2014-08-20 | 2016-04-06 | 青岛海信电器股份有限公司 | Lens, direct-light-type backlight module and liquid crystal display device |
| CN207114821U (en) * | 2017-07-31 | 2018-03-16 | 惠州拓邦电气技术有限公司 | A kind of light guide structure and device |
-
2017
- 2017-07-31 CN CN201710641084.0A patent/CN107290818A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083936A (en) * | 1992-09-02 | 1994-03-16 | 莫托罗拉公司 | The wedge that in display device, is used for the branch luminous intensity distribution |
| US6193383B1 (en) * | 1998-03-27 | 2001-02-27 | Citizen Electronics Co., Ltd. | Linear light source unit |
| CN103163572A (en) * | 2011-12-08 | 2013-06-19 | 欧司朗股份有限公司 | Lens, light emitting device and scanner |
| EP2851717A1 (en) * | 2012-06-06 | 2015-03-25 | Huawei Device Co., Ltd. | Light guiding device, light emitting apparatus, electronic apparatus and key |
| CN105465738A (en) * | 2014-08-20 | 2016-04-06 | 青岛海信电器股份有限公司 | Lens, direct-light-type backlight module and liquid crystal display device |
| CN207114821U (en) * | 2017-07-31 | 2018-03-16 | 惠州拓邦电气技术有限公司 | A kind of light guide structure and device |
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