CN102345832A - Light guide body and illuminating device employing same - Google Patents
Light guide body and illuminating device employing same Download PDFInfo
- Publication number
- CN102345832A CN102345832A CN2010102423854A CN201010242385A CN102345832A CN 102345832 A CN102345832 A CN 102345832A CN 2010102423854 A CN2010102423854 A CN 2010102423854A CN 201010242385 A CN201010242385 A CN 201010242385A CN 102345832 A CN102345832 A CN 102345832A
- Authority
- CN
- China
- Prior art keywords
- water chestnut
- light conductor
- cylindrical body
- transparent resin
- resin layer
- 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.)
- Pending
Links
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a light guide body and an illuminating device employing the same. The light guide body of the illuminating device comprises a columnar body, a reflecting layer, a transparent resin layer and a light adjusting sheet, wherein the columnar body is provided with an incident surface and a bottom surface; the reflecting layer is arranged on the bottom surface of the columnar body; the transparent resin layer is arranged on the incident surface of the columnar body; the light adjusting sheet is provided with a flat surface and an optical structure surface; the flat surface is opposite to the optical structure surface and is arranged on the transparent resin layer; the central part of the optical structure surface comprises a first prism part; and the first prism part comprises a plurality of first prisms, and the apex angles of the first prisms are between 120 and 170 DEG.
Description
Technical field
The present invention relates to a kind of light conductor and use its lighting device, and particularly relate to and a kind ofly in light conductor, use lay the grain sheet, and use its lighting device, to be lifted out optical efficiency with water chestnut mirror portion.
Background technology
The length that is used in the light conductor of fluorescent tube illumination needs at least 600 millimeters (mm), yet the light conductor that utilizes the injection molded manufacture craft to make length 600 millimeters (mm) has stress, warpage, need have into Jiao Kou and the relatively poor problem of light conductivity.Therefore; Be used in illuminating light conductor at present and all use extrusion (extruding) manufacture craft; Yet the light conductor that use extrusion manufacture craft makes can cause the problem of yield and production time elongation as making the design demand secondary operations of optical texture at two ends.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of light conductor and use its lighting device.Because a core of the lay the grain sheet of light conductor of the present invention comprises one first water chestnut mirror portion, the drift angle of the first water chestnut mirror of this first water chestnut mirror portion is 120 to 170 degree, makes the light extraction efficiency of lighting device of the present invention improve widely.
According to an aspect of the present invention, propose a kind of light conductor of lighting device, comprise a cylindrical body, a reflecting layer, a transparent resin layer and a lay the grain sheet.This cylindrical body has an incidence surface and a bottom surface.This reflecting layer is disposed on the bottom surface of cylindrical body.This transparent resin layer is disposed on the incidence surface of cylindrical body.The lay the grain sheet has a burnishing surface and an optical texture face.Burnishing surface is relative with the optical texture face.Burnishing surface is disposed on the transparent resin layer.One core of optical texture face comprises one first water chestnut mirror portion.The first water chestnut mirror portion comprises a plurality of first water chestnut mirrors, and the drift angle of these a little first water chestnut mirrors is 120 to 170 degree.
According to a further aspect in the invention, propose a kind of lighting device, comprise a light conductor and a light source.This light conductor comprises a cylindrical body, a reflecting layer, a transparent resin layer and a lay the grain sheet.This cylindrical body has an incidence surface and a bottom surface.This reflecting layer is disposed on the bottom surface of cylindrical body.This transparent resin layer is disposed on the incidence surface of cylindrical body.The lay the grain sheet has a burnishing surface and an optical texture face.Burnishing surface is relative with the optical texture face.Burnishing surface is disposed on the transparent resin layer.One core of optical texture face comprises one first water chestnut mirror portion.The first water chestnut mirror portion comprises a plurality of first water chestnut mirrors, and the drift angle of these a little first water chestnut mirrors is 120 to 170 degree.The light that this light source produced gets into the incidence surface of cylindrical body via lay the grain sheet and transparency grease layer.
For allowing the foregoing of the present invention can be more obviously understandable, hereinafter specially lift embodiment, and cooperate appended accompanying drawing, elaborate as follows:
Description of drawings
Fig. 1 is the sketch map that illustrates according to an embodiment of lighting device of the present invention;
Fig. 2 A is the first embodiment sketch map that illustrates the lay the grain sheet of the light conductor in the lighting device of Fig. 1;
Fig. 2 B is the second embodiment sketch map that illustrates the lay the grain sheet of the light conductor in the lighting device of Fig. 1;
Fig. 2 C is the 3rd embodiment sketch map that illustrates the lay the grain sheet of the light conductor in the lighting device of Fig. 1.
The main element symbol description
10: lighting device
100: light conductor
110: cylindrical body
111: incidence surface
113: exiting surface
115: the bottom surface
130: transparent resin layer
150: the lay the grain sheet
151: burnishing surface
153: the optical texture face
153a: the first water chestnut mirror portion
153b: the second water chestnut mirror portion
153c: first surface portion
153d: second curved face part
154: the first water chestnut mirrors
155: the second water chestnut mirrors
170: the reflecting layer
200: light source
M: central shaft
The specific embodiment
Please with reference to Fig. 1, it illustrates the sketch map of lighting device of the present invention.As shown in Figure 1, lighting device 10 comprises light conductor 100 and at least one light source 200.Light conductor 100 comprises cylindrical body 110, transparent resin layer 130, lay the grain sheet 150 and reflecting layer 170.Cylindrical body 110 has incidence surface 111, exiting surface 113 and bottom surface 115.Reflecting layer 170 is disposed on the bottom surface 115 of cylindrical body 110.Transparent resin layer 130 is disposed on the incidence surface 111 of cylindrical body 110.Lay the grain sheet 150 has burnishing surface 151 and optical texture face 153, and burnishing surface 151 is relative with optical texture face 153, and burnishing surface 151 is disposed on the transparent resin layer 130.
Please be simultaneously with reference to Fig. 2 A, it illustrates the sketch map of first embodiment of the lay the grain sheet 150 of the light conductor 100 in the lighting device 10 of Fig. 1.In first embodiment, the core of the optical texture face 153 of lay the grain sheet 150 comprises the first water chestnut mirror 153a of portion.The first water chestnut mirror 153a of portion comprises a plurality of first water chestnut mirrors 154, and the drift angle of these a little first water chestnut mirrors is 120 to 170 degree, is to be 125 to 150 degree at another embodiment.Because the drift angle of the first water chestnut mirror is 120 to 170 degree; Or be 125 to 150 degree; After the light that makes light source 200 produced is injected light conductor 100; Can significantly reduce the total reflection of light in lay the grain sheet and other medium interface; Therefore reduce the generation of light leak effectively, allow the light extraction efficiency of exiting surface 113 of cylindrical body 110 significantly improve.
These a little first water chestnut mirrors 154 can for example be symmetrical in the central shaft M of light source 200, increase the probability that light that light source 200 produced gets into light conductor 100.In addition, the optical texture face 153 of lay the grain sheet 150 can comprise the second water chestnut mirror 153b of portion, is adjacent to the first water chestnut mirror 153a of portion.This second water chestnut mirror 153b of portion comprises a plurality of second water chestnut mirrors 155.In the present embodiment, the drift angle of these a little second water chestnut mirrors 155 is that the drift angle with the first water chestnut mirror 154 of the first water chestnut mirror 153a of portion is 120 to 170 degree, or is that 125 to 150 degree are different.For instance, the drift angle of the first water chestnut mirror 154 of the first water chestnut mirror 153a of portion can be 150 degree, and the drift angle of the second water chestnut mirror 155 can be 90 degree.
Lay the grain sheet 150 can for example be concentration piece, expansion mating plate or laser site LGP.The material of transparent resin layer 130 can be pressure-sensing glue (Pressure Senstive Adhesion, PSA), transparent optical cement (Optical Clear Adhesive, OCA) or liquid optical cement.Transparent resin layer 130 is in order to being disposed between cylindrical body 110 and the lay the grain sheet 150, being used for the secluding air layer, and the light that further reduces light source 200 is injected the boundary reflection of light conductor 100, increases light extraction efficiency.Reflecting layer 170 can be diffuse reflection type or scattered reflection formula reflecting layer, derives exiting surface 113 in order to the light that will get into cylindrical body 110.
Please with reference to Fig. 2 B, it illustrates the second embodiment sketch map of the lay the grain sheet 150 of the light conductor 100 in the lighting device 10 of Fig. 1.Second embodiment of Fig. 2 B and the first embodiment difference of Fig. 2 A are that the drift angle of the second water chestnut mirror 155 is identical with the drift angle of the first water chestnut mirror 155 of the first water chestnut mirror 153a of portion; Reduce the total reflection of lay the grain sheet and other medium interface thus, increase the light extraction efficiency of exiting surface 113.
Please with reference to Fig. 2 C, it illustrates the 3rd embodiment sketch map of the lay the grain sheet 150 of the light conductor 100 in the lighting device 10 of Fig. 1.The first embodiment difference of the 3rd embodiment of Fig. 2 C and Fig. 2 A is that lay the grain sheet 150 comprises a 153c of first surface portion and one second curved face part 153d.The 153c of first surface portion and the second curved face part 153d be the both sides of the adjacency first water chestnut mirror 153a of portion respectively, and first and second curved face part has the first surface radius R respectively
1And the second subsequent corrosion R
2, the first surface radius R
1And the second subsequent corrosion R
2Be respectively 5 to 20 millimeters (mm).
The first surface radius R
1And the second subsequent corrosion R
2Can be designed to identical or different.For instance, if when the light shape of light source 200 be symmetrical, can design the first surface radius R
1And the second subsequent corrosion R
2For identical.If the first surface radius R during deviation, is optionally designed to some extent in when the light shape of light source 200 the is asymmetric or position of light source 200
1And the second subsequent corrosion R
2Be not identical, reduce the total reflection of lay the grain sheet and other medium interface, increase the optical efficiency of going into of light source 200.
Because the lighting device that the present invention discloses comprises transparent resin layer and lay the grain sheet.Transparent resin layer is disposed on the incidence surface of cylindrical body and the core of the optical texture face of lay the grain sheet comprises the first water chestnut mirror portion.The first water chestnut mirror portion comprises a plurality of first water chestnut mirrors, and the drift angle of these a little first water chestnut mirrors is 120 to 170 degree, makes to promote greatly into optical efficiency, reduces light leak thus, promotes illumination.Moreover; Transparent resin layer of the present invention and lay the grain sheet with water chestnut mirror portion are fitted in length not only improve whole brightness value, more and solve and directly make the problem that yield that structure causes and production time elongate in the both sides of cylindrical body greater than the cylindrical body of 600 millimeters (mm).
In sum, though combined above embodiment to disclose the present invention, it is not in order to limit the present invention.Be familiar with this operator in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, can do various changes and retouching.Therefore, protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (11)
1. the light conductor of a lighting device comprises:
Cylindrical body has incidence surface and bottom surface;
The reflecting layer is disposed on this bottom surface of this cylindrical body;
Transparent resin layer is disposed on this incidence surface of this cylindrical body; And
The lay the grain sheet; Have burnishing surface and optical texture face; This burnishing surface is relative with this optical texture face; This burnishing surface is disposed on this transparent resin layer; One core of this optical texture face comprises the first water chestnut mirror portion; This first water chestnut mirror portion comprises a plurality of first water chestnut mirrors, and the drift angle of those first water chestnut mirrors is 120 to 170 degree.
2. light conductor as claimed in claim 1, wherein the drift angle of those first water chestnut mirrors is 125 to 150 degree.
3. light conductor as claimed in claim 1, wherein those first water chestnut mirrors are symmetrical in the central shaft of a light source.
4. light conductor as claimed in claim 1, wherein this optical texture face also comprises the second water chestnut mirror portion, and it is adjacent to this first water chestnut mirror portion, and this second water chestnut mirror portion comprises a plurality of second water chestnut mirrors.
5. light conductor as claimed in claim 4, wherein the drift angle of those second water chestnut mirrors is different with the drift angle of those first water chestnut mirrors.
6. light conductor as claimed in claim 1, wherein this optical texture face also comprises the first surface portion and second curved face part, respectively in abutting connection with the both sides of this first water chestnut mirror portion, and this first and second curved face part has the first surface radius and second subsequent corrosion respectively.
7. light conductor as claimed in claim 1, wherein this first surface radius is respectively 5 to 20 millimeters (mm) with this second subsequent corrosion.
8. light conductor as claimed in claim 7, wherein this first surface radius is identical with this second subsequent corrosion.
9. light conductor as claimed in claim 7, wherein this first surface radius is different with this second subsequent corrosion.
10. light conductor as claimed in claim 1, wherein the material of this transparent resin layer be a pressure-sensing glue (Pressure Senstive Adhesion, PSA), a transparent optical cement (Optical Clear Adhesive, OCA) or liquid optical cement.
11. a lighting device comprises:
Light conductor comprises:
Cylindrical body has an incidence surface and a bottom surface;
The reflecting layer is disposed on this bottom surface of this cylindrical body;
Transparent resin layer is disposed at this side of this cylindrical body; And
The lay the grain sheet; Have a burnishing surface and an optical texture face; This burnishing surface is relative with this optical texture face; This burnishing surface is disposed on this transparent resin layer; One core of this optical texture face comprises one first water chestnut mirror portion; This first water chestnut mirror portion comprises a plurality of first water chestnut mirrors, and the drift angle of those first water chestnut mirrors is 120 to 170 degree; And
Light source, the light that is produced get into this incidence surface of this cylindrical body via this lay the grain sheet and this transparent resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102423854A CN102345832A (en) | 2010-08-02 | 2010-08-02 | Light guide body and illuminating device employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102423854A CN102345832A (en) | 2010-08-02 | 2010-08-02 | Light guide body and illuminating device employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102345832A true CN102345832A (en) | 2012-02-08 |
Family
ID=45544760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102423854A Pending CN102345832A (en) | 2010-08-02 | 2010-08-02 | Light guide body and illuminating device employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102345832A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107502A (en) * | 2017-12-21 | 2018-06-01 | 吴丽莹 | A kind of glass light guide plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206284A (en) * | 2006-12-22 | 2008-06-25 | 鸿富锦精密工业（深圳）有限公司 | Light conducting plate and back light module unit |
| TW200848809A (en) * | 2007-06-04 | 2008-12-16 | Ching-Bin Lin | Light guide plate and backlight module capable of converting light source wavelength and enhancing light uniformity |
| TW200903062A (en) * | 2007-07-12 | 2009-01-16 | Wintek Corp | Light guide plate and light diffusing structure thereof |
| TW200916858A (en) * | 2007-10-01 | 2009-04-16 | Wintek Corp | Light guide plate |
| US20100053996A1 (en) * | 2008-08-28 | 2010-03-04 | Tong Zhang | Light guide with reflectance enhancement and lighting system including the same |
-
2010
- 2010-08-02 CN CN2010102423854A patent/CN102345832A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206284A (en) * | 2006-12-22 | 2008-06-25 | 鸿富锦精密工业（深圳）有限公司 | Light conducting plate and back light module unit |
| TW200848809A (en) * | 2007-06-04 | 2008-12-16 | Ching-Bin Lin | Light guide plate and backlight module capable of converting light source wavelength and enhancing light uniformity |
| TW200903062A (en) * | 2007-07-12 | 2009-01-16 | Wintek Corp | Light guide plate and light diffusing structure thereof |
| TW200916858A (en) * | 2007-10-01 | 2009-04-16 | Wintek Corp | Light guide plate |
| US20100053996A1 (en) * | 2008-08-28 | 2010-03-04 | Tong Zhang | Light guide with reflectance enhancement and lighting system including the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107502A (en) * | 2017-12-21 | 2018-06-01 | 吴丽莹 | A kind of glass light guide plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8480284B2 (en) | Light guide unit and light source module having scattering reflective unit | |
| US20140126238A1 (en) | Light source module and manufacturing method thereof | |
| TWI485451B (en) | Light guide plate, backlight module and display device | |
| CN103901528B (en) | Planar light source device and its light guide plate | |
| WO2019218113A1 (en) | Light guide plate, backlight module and display device | |
| JP2004241369A (en) | Light guide plate with light guide part | |
| CN107667255B (en) | Illumination system and illumination method using light guide | |
| JP2018518699A (en) | Optical film | |
| CN107949743B (en) | Light guide with pixelated image | |
| CN100575992C (en) | Planar light source device and use therein light conductor | |
| CN102224373A (en) | Planar light source device and light guide used for the same | |
| CN103216786A (en) | Light-emitting diode (LED) lens | |
| KR20110139193A (en) | Light guide system for extracting light with controlled output | |
| CN205246928U (en) | Leaded light material, backlight unit and display device | |
| CN104235758B (en) | Lens, the light-guiding shade with the lens and the lighting device using the lens | |
| US8031405B2 (en) | Optical adjusting apparatus with composite pattern structure | |
| CN102345832A (en) | Light guide body and illuminating device employing same | |
| CN100492133C (en) | Light source device with light gathering effect and back light module using the same light source device | |
| JP2006286505A (en) | Light guide body, its manufacturing method, and light source device | |
| US20160341872A1 (en) | Light guide plate, back light module and liquid crystal display device | |
| CN106292059B (en) | Luminous liquid crystal panel, liquid crystal display device and display terminal | |
| JP4905357B2 (en) | Light guide | |
| JP6166621B2 (en) | Surface lighting device | |
| TW201202621A (en) | Light guiding object and lighting device using the same | |
| US8200060B2 (en) | Brightness enhancement sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120208 |