CN202101159U - Light conducting device - Google Patents
Light conducting device Download PDFInfo
- Publication number
- CN202101159U CN202101159U CN2011201416798U CN201120141679U CN202101159U CN 202101159 U CN202101159 U CN 202101159U CN 2011201416798 U CN2011201416798 U CN 2011201416798U CN 201120141679 U CN201120141679 U CN 201120141679U CN 202101159 U CN202101159 U CN 202101159U
- Authority
- CN
- China
- Prior art keywords
- light pipe
- light
- reflecting plate
- protuberance
- forms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a light conducting device which comprises a light conducting pipe, a reflector plate and a light source, wherein the light conducting pipe is made of transparent materials and provided with a plurality of raised parts which are distributed at intervals; the light source is arranged at a position close to the end of the light conducting pipe, and projection light of the light source enters in the light conducting pipe; the reflector plate is coated with a reflecting membrane or made of high-reflectivity materials, and provided with a plurality of bulges which are distributed at intervals; and the reflector plate is arranged outside the light conducting pipe, and the raised parts of the light conducting pipe and the bulges of the reflector plate are distributed at intervals. Through one-to-one structural design of the raised parts of the light conducting pipe and the bulges of the reflector plate, light enters the light conducting pipe and then is conducted inside the light conducting pipe, a small part of the light can be leaked from each raised point where the light arrives, and the light conducting pipe is similar to a lens due to the curvature of the raised points, thus forming a certain diffusion effect on the light, and providing the angle distribution of certain emergent light; and the raised points of the reflector plate at the lower part reflect the leaked light and adjust the angles of the light, thus controlling the whole illumination direction.
Description
Technical field
The utility model belongs to Optical devices manufacturing technology field, particularly a kind of guiding device, and it is applicable to technical fields such as display lighting backlight, routine and special lightings.
Background technology
Traditional guiding device generally comprises light pipe, reflecting plate and illuminator; But in traditional guiding device technical scheme; Because light pipe salient point and reflecting plate salient point do not form one-to-one relationship, reflecting plate has only risen about compensation rather than main control light action, and irradiating angle is uncontrollable; It can produce a lot of light leaks, so projection efficiency is low; And because irradiating angle is uncontrollable, it is inhomogeneous just to seem when people in the above observes this light pipe, and the purpose of making light pipe will make the people of observation seem even exactly.
Summary of the invention
The utility model provides a kind of guiding device, and it has solved the above-mentioned technical problem that prior art exists.
The utility model is taked following technical scheme: guiding device, comprise light pipe, reflecting plate, light source, and light pipe is processed by light transmissive material, and light pipe forms a plurality of protuberances that are intervally arranged; Described light source is located at the end position near light pipe, and the throw light of light source is injected the inside of light pipe; Described reflecting plate plating reflectance coating or reflecting plate adopt highly reflective material to process, and reflecting plate forms a plurality of convexities that are intervally arranged; Reflecting plate is located at the outside of light pipe, the protuberance of light pipe and reflecting plate protruding spaced.
Described guiding device; Light pipe forms a bottom surface, and the protuberance of said light pipe is formed at the bottom surface of said light pipe, and described protuberance outer wall is the cylinder of semicolumn or the cylinder of type of being semicolumn; Or the protuberance outer wall is free form surface, and a plurality of protuberances are along the length direction parallel arrangement of light pipe.
Described guiding device, reflecting plate forms a plurality of described convexities by substrate and forms, and the cross section of said convexity is triangular in shape, and a plurality of convexities are along the length direction parallel arrangement of substrate.
Described guiding device, the substrate of reflecting plate is flat or bending.
Described guiding device, light pipe are straight type or bending; The protuberance of light pipe is shape or the free form surface shape that has radian.
Described guiding device, the convexity of reflecting plate is strip, and its cross section is the shape of triangle or band radian.
Described guiding device, the height of light pipe protuberance, shape, spacing, width be along with the gradual change away from light source, corresponding ground, height, shape, spacing, also gradual change of width that reflecting plate is protruding.
Described guiding device, light source adopts LED, gas-discharge lamp or PLED.
Described guiding device, light pipe is elongated, forms a bottom surface; The protuberance of said light pipe is formed at the bottom surface of said light pipe, and described protuberance outer wall is the cylinder of semicolumn or the cylinder of type semicolumn, or the protuberance outer wall is free form surface, and a plurality of protuberances are along its length direction parallel arrangement; Described reflecting plate is elongated, forms a plurality of described convexities by substrate and forms, and said convexity is prism-shaped, and a plurality of convexities are along its length direction parallel arrangement.
The invention also discloses another kind of technical scheme: guiding device, comprise light pipe, reflecting plate, light source, light pipe is processed by light transmissive material, and light pipe forms a plurality of protuberances that are intervally arranged; Described light source is located at the end position near light pipe, and the throw light of light source is injected the inside of light pipe; Described reflecting plate plating reflectance coating or reflecting plate adopt highly reflective material to process, and reflecting plate forms a plurality of convexities that are intervally arranged; Reflecting plate is located at the outside of light pipe, the protruding corresponding arrangement of the protuberance of light pipe and reflecting plate; Reflecting plate convexity between the light pipe adjacent projection is no more than 1, and between the protuberance of at least 90% above light pipe the convexity of reflecting plate is arranged.
In the technical scheme of the utility model guiding device; The protuberance of light pipe and the convexity of reflecting plate are man-to-man structural design, and in the light pipe conducted inside, every salient point just spills few part light behind the light entering light pipe; Because salient point curvature; Be equivalent to lens, light has been formed certain disperse function, certain emergent light angle distribution is provided; The reflecting plate salient point of bottom reflects spilling light, and adjusts its angle, has controlled whole illumination direction.
The technical scheme of the utility model can promote the illumination efficiency of light pipe greatly.
The technical scheme of the utility model can be controlled the projecting direction of light (in the prior art scheme; Its shooting angle is very big; So brightness is low; Can't directional lighting, therefore can only be applicable to the back lighting of liquid crystal or other pattern, and the technical scheme of the utility model can directed low-angle illumination back just can realize conventional preferably the illumination).The utility model guiding device is applicable to technical fields such as display lighting backlight, routine and special lightings.
The people stands in the illumination direction of the utility model guiding device, when observing light pipe, and low, the good uniformity of its dazzle.
Description of drawings
Fig. 1 is the upward view of light pipe.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the light pipe axial view.
Fig. 4 is the vertical view of reflecting plate.
Fig. 5 is the B-B profile of Fig. 4.
Fig. 6 is the installation diagram of light pipe and reflecting plate.
Fig. 7 is the structural representation of guiding device.
The specific embodiment
Embodiment to the utility model elaborates below in conjunction with accompanying drawing.
Embodiment one: referring to Fig. 1-7; Guiding device comprises light pipe 1, reflecting plate 2, led light source 3, and the material of light pipe 1 is the good optical medium of transparent light guide property such as PMMA, PC or other material, and light pipe 1 is a solid; Profile is elongated; The rounded shape that lacks a bit of arc of its end face, this part that lacks is in round bottom, from whole light pipe 1; This one is the bottom surface 1-1 (it can be approximated to be cylinder and cuts away sub-fraction along its length, and this one has formed light pipe bottom surface 1-1) of light pipe 1.Light pipe bottom surface 1-1 forms the protuberance 1-2 of a plurality of cross section semicirculars in shape to evagination, protuberance 1-2 is semi-cylindrical, and the axis of protuberance 1-2 and light pipe 1 is perpendicular, and a plurality of protuberance 1-2 parallel and are intervally arranged along the length direction of light pipe 1.
Near the one or both ends face of light pipe 1 led light source 3 is set, LED distinguishes incident from a side incident of light pipe or from the two sides of light pipe, and the throw light of light source 3 is along the internal communication of light pipe 1.
Reflecting plate 2 is elongated, and it simultaneously upward forms a plurality of cross sections protruding 2-2 triangular in shape by substrate 2-1 in it and forms, and protruding 2-2 is triangular column, and it has two inclined-planes up.A plurality of protruding 2-2 are parallel and be intervally arranged along the length direction of substrate 2-1.The reflecting surface of reflecting plate 2 is promptly towards the surface of light pipe 1 plating reflectance coating, or reflecting plate adopts highly reflective material.
Reflecting plate 2 is in the bottom of light pipe 1, and the protuberance 1-2 of light pipe 1 is just spaced with the protruding 2-2 of reflecting plate 2, and both form man-to-man structure arrangement form.
Fig. 7 has shown the propagation of light: light incides in the light pipe 1 from led light source 3; It is along the internal communication of light pipe 1; The protuberance 1-2 that at every turn runs into the light pipe bottom surface just has light and spills; And the light that spills is just beaten on the protruding 2-2 of reflecting plate 2, and it is reflected away promptly towards top (direction that needs illumination).Owing to adopt above-mentioned man-to-man structural design; Like this; The direction of light, the angle of emergence can be controlled, thereby total is just very high to the utilization rate of LED luminous energy, and just can reduce the light energy of LED in the occasion of a lot of priming illumination brightness; Cost and size all are able to reduce like this, have alleviated the pressure that heat dissipation problem brings simultaneously.
Embodiment two: the reflecting plate convexity between the light pipe adjacent projection is no more than 1, and between the protuberance of at least 90% above light pipe the convexity of reflecting plate is arranged.Other content reference implementation example one of present embodiment.
Above the preferred embodiment of the utility model has been done detailed description, certainly, light pipe is very long, and its cross section can be sub-circular or other shape (such as square); Light pipe can be straight, also can be crooked; The protuberance of light pipe bottom surface can have the shape of radian for projection, and type cylinder also can be a free form surface; The protruding cross section of reflecting plate can be a prismatic, also can be with radian, is shaped as the strip that stretches with the cross section; Reflecting plate monolith substrate shape can be put down, and also can bend, but whole and then LGP is walked promptly suitable with LGP; In addition, the height of light pipe bottom surface protuberance, shape, spacing, width etc. can be along with the gradual changes away from light source; The protruding height of reflecting plate, shape, spacing, angle etc. also can gradual changes, but must be corresponding with the protuberance of light pipe.Above-mentioned conversion all belongs to the protection domain of the utility model.
Claims (10)
1. guiding device comprises light pipe, reflecting plate, light source, and light pipe is processed by light transmissive material, and its characteristic is being: described light pipe forms a plurality of protuberances that are intervally arranged; Described light source is located at the end position near light pipe, and the throw light of light source is injected the inside of light pipe; Described reflecting plate plating reflectance coating or reflecting plate adopt highly reflective material to process, and reflecting plate forms a plurality of convexities that are intervally arranged; Reflecting plate is located at the outside of light pipe, the protuberance of light pipe and reflecting plate protruding spaced.
2. guiding device as claimed in claim 1; It is characterized in that: described light pipe forms a bottom surface; The protuberance of said light pipe is formed at the bottom surface of said light pipe; Cylinder or protuberance outer wall that described protuberance outer wall is semicolumn are free form surface, and a plurality of protuberances are along the length direction parallel arrangement of light pipe.
3. guiding device as claimed in claim 1 is characterized in that: described reflecting plate forms a plurality of described convexities by substrate and forms, and the cross section of said convexity is triangular in shape, and a plurality of convexities are along the length direction parallel arrangement of substrate.
4. guiding device as claimed in claim 3 is characterized in that: the substrate of reflecting plate is flat or bending.
5. guiding device as claimed in claim 1 is characterized in that: light pipe is straight type or bending; The protuberance of light pipe is shape or the free form surface shape that has radian.
6. like claim 1 or 3 or 4 described guiding devices, it is characterized in that: the convexity of reflecting plate is strip, and its cross section is the shape of triangle or band radian.
7. like claim 1 or 2 or 3 or 4 or 5 described guiding devices, it is characterized in that: the height of light pipe protuberance, shape, spacing, width be along with the gradual change away from light source, corresponding ground, height, shape, spacing, also gradual change of width that reflecting plate is protruding.
8. guiding device as claimed in claim 1 is characterized in that: light source adopts LED, gas-discharge lamp or PLED.
9. guiding device as claimed in claim 1 is characterized in that: described light pipe is elongated, forms a bottom surface; The protuberance of said light pipe is formed at the bottom surface of said light pipe, and described protuberance outer wall is the cylinder of semicolumn, or the protuberance outer wall is free form surface, and a plurality of protuberances are along its length direction parallel arrangement; Described reflecting plate is elongated, forms a plurality of described convexities by substrate and forms, and said convexity is prism-shaped, and a plurality of convexities are along its length direction parallel arrangement.
10. guiding device comprises light pipe, reflecting plate, light source, and light pipe is processed by light transmissive material, and its characteristic is being: described light pipe forms a plurality of protuberances that are intervally arranged; Described light source is located at the end position near light pipe, and the throw light of light source is injected the inside of light pipe; Described reflecting plate plating reflectance coating or reflecting plate adopt highly reflective material to process, and reflecting plate forms a plurality of convexities that are intervally arranged; Reflecting plate is located at the outside of light pipe, the protruding corresponding arrangement of the protuberance of light pipe and reflecting plate; Reflecting plate convexity between the light pipe adjacent projection is no more than 1, and between the protuberance of at least 90% above light pipe the convexity of reflecting plate is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201416798U CN202101159U (en) | 2011-05-06 | 2011-05-06 | Light conducting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201416798U CN202101159U (en) | 2011-05-06 | 2011-05-06 | Light conducting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101159U true CN202101159U (en) | 2012-01-04 |
Family
ID=45387168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201416798U Expired - Fee Related CN202101159U (en) | 2011-05-06 | 2011-05-06 | Light conducting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202101159U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487922A (en) * | 2013-05-07 | 2014-01-01 | 瑞仪光电股份有限公司 | Light steering device |
| CN108709162A (en) * | 2018-06-15 | 2018-10-26 | 浙江彩丞照明科技有限公司 | A kind of anti-dazzle tabula rasa with light-absorbing layer |
-
2011
- 2011-05-06 CN CN2011201416798U patent/CN202101159U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487922A (en) * | 2013-05-07 | 2014-01-01 | 瑞仪光电股份有限公司 | Light steering device |
| TWI472815B (en) * | 2013-05-07 | 2015-02-11 | Radiant Opto Electronics Corp | Light steering device |
| US9256022B2 (en) | 2013-05-07 | 2016-02-09 | Radiant Opto-Electronics Corporation | Light-directing device |
| CN103487922B (en) * | 2013-05-07 | 2017-04-26 | 瑞仪光电股份有限公司 | Light steering device |
| CN108709162A (en) * | 2018-06-15 | 2018-10-26 | 浙江彩丞照明科技有限公司 | A kind of anti-dazzle tabula rasa with light-absorbing layer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101630037B (en) | Backlight module and light guide plate thereof | |
| CN202469764U (en) | Sidelight type backlight | |
| CN102748707A (en) | Floodlight total-reflection lens and LED (Light Emitting Diode) lamp using lens | |
| CN1688028A (en) | Face light source module based on LED | |
| CN101963330A (en) | Light guide plate with graphics | |
| CN202947014U (en) | Display device and backlight module thereof | |
| CN202101159U (en) | Light conducting device | |
| CN103216786A (en) | Light-emitting diode (LED) lens | |
| CN101504124A (en) | Illumination module group, display and universal illumination device comprising the same | |
| CN103048727A (en) | LGP (Light Guide Plate), backlight source and LCD (Liquid Crystal Display) device | |
| CN206133057U (en) | A reflection member for backlight module | |
| CN102947737A (en) | Illumination device with waveguide and LEDs | |
| CN201448639U (en) | Lighting device | |
| CN102182968A (en) | Novel LED (light-emitted diode) backlight module | |
| CN202947076U (en) | Lens, light-emitting diode (LED) device with lens and LED lamps and lanterns | |
| CN102829432A (en) | Novel LED total reflection lens capable of realizing continuous zooming and design method of novel LED total reflection lens | |
| CN102720987A (en) | Light emitting diode (LED) area source employing side light emitting bar | |
| CN202327888U (en) | Backlight source and display device using same | |
| CN102506356A (en) | Back light unit | |
| CN202392588U (en) | Backlight structure and liquid crystal display comprising same | |
| CN103021299A (en) | Reflective device for inner light box | |
| CN202442204U (en) | Illuminating light-emitting diode (LED) lamp tube | |
| CN202392544U (en) | Bubble-shaped LED (light emitting diode) lamp | |
| CN204099978U (en) | A kind of light emission lens module of LED uniform in light emission | |
| US20220214489A1 (en) | A light emitting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20170506 |