CN103852820A - Light guide rod and light emitting diode lighting device - Google Patents
Light guide rod and light emitting diode lighting device Download PDFInfo
- Publication number
- CN103852820A CN103852820A CN201210493546.6A CN201210493546A CN103852820A CN 103852820 A CN103852820 A CN 103852820A CN 201210493546 A CN201210493546 A CN 201210493546A CN 103852820 A CN103852820 A CN 103852820A
- Authority
- CN
- China
- Prior art keywords
- light
- face
- lamp guide
- emitting diode
- light emitting
- 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
Abstract
A light emitting diode lighting device comprises a light guide bar and a light emitting diode. The light guide bar comprises a light incoming end surface, a reflection end surface which is on the back-to-back surface of the light incoming end surface and a side surface which is connected to the light incoming end surface and the reflection end surface; the side surface comprises a light coming out zone or a reflection zone; the light coming out zone is in a rectangle shape, the length direction of the light coming out zone is configured in parallel with the central axis of the light guide bar and the reflection zone is plated with a reflection layer; and the light emitting diode and the light incoming end surface are oppositely arranged and is used for shining the light into the light incoming end surface. The light emitted by the light emitting diode can be reflected by the reflection layer and is emitted by the light coming out zone, and linear light source is formed by the light coming out zone.
Description
Technical field
The present invention relates to LED lighting field, concrete, relate to a kind of lamp guide and light emitting diode illuminating apparatus.
Background technology
At present, using in the light source of light emitting diode, as formed the light source of wire, conventionally need to use multiple light emitting diodes, and be arranged in wire, so, increase cost.
Summary of the invention
In view of this, be necessary to provide a kind of and can form linear light source the lamp guide reducing costs and light-emitting diodes lighting device.
A kind of lamp guide, described lamp guide comprises that a light inlet end face, reflection end face opposing with described light inlet end face and one are connected the side of described light inlet end face and described reflection end face; Described side comprises a bright dipping region and a reflector space; This bright dipping region is rectangular, and the length direction in described bright dipping region is parallel to the central shaft setting of described lamp guide, and described reflector space is coated with one deck reflection horizon.
A kind of light emitting diode illuminating apparatus, comprises a lamp guide and a light emitting diode; Described lamp guide comprises that a light inlet end face, reflection end face opposing with described light inlet end face and one are connected the side of described light inlet end face and described reflection end face; Described side comprises a bright dipping region and a reflector space; This bright dipping region is rectangular, and the length direction in described bright dipping region is parallel to the central shaft setting of described lamp guide, and described reflector space is coated with one deck reflection horizon; Described light emitting diode and described light inlet end face be oppositely arranged and for by luminous go out light directive described in light inlet end face.
Compared to prior art, light emitting diode illuminating apparatus of the present invention, the reflector space of described lamp guide is coated with one deck reflection horizon, so, the light that light emitting diode sends can be by described reflective layer reflects and by described bright dipping region outgoing, form linear light source by described bright dipping region, do not need multiple light emitting diodes to form linear light source, reduced cost.
Brief description of the drawings
Fig. 1 is the schematic perspective view of lamp guide provided by the invention.
Fig. 2 is the left view of the lamp guide shown in Fig. 1.
Fig. 3 is the cut-open view of the lamp guide shown in Fig. 2 along hatching line III-III.
Fig. 4 is the schematic diagram of light emitting diode illuminating apparatus provided by the invention.
Main element symbol description
| Light emitting diode illuminating apparatus | 100 |
| |
10 |
| Light |
101 |
| |
102 |
| |
103 |
| |
1031 |
| |
1032 |
| Roughened |
1033 |
| Central shaft | AA |
| Plane | |
| Reflection horizon | |
| 20 | |
| Light emitting diode | 30 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Referring to Fig. 1 to Fig. 3, is a kind of shaft-like lamp guide 10 provided by the invention.Described lamp guide 10 is made up of transparent material, for example, polymethylmethacrylate (poly methyl meth acrylate, PMMA, be commonly called as acryl), poly-carbonic acid dead drunk (poly carbonate, PC), silicones (silicone) or glass etc. make.In present embodiment, described lamp guide 10 is made by ejection formation by PMMA.
Described lamp guide 10 is for right cylinder and comprise a circular light inlet end face 101, the reflection end face 102 of carrying on the back with described light inlet end face 101 and a vertical side 103 that is connected described light inlet end face 101 and described reflection end face 102.Described lamp guide 10 has a central shaft AA, and described side 103 is a reflector space 1031 and a bright dipping region 1032 by dividing equally through a plane P P of described central shaft AA.Be that described reflector space 1031 is the hemicycle cylinder that two areas equate with described bright dipping region 1032.Described reflector space 1031 forms a roughened layer 1033 after sandblast alligatoring, on described roughened layer 1033, is coated with one deck reflection horizon 20.Described reflection horizon 20 can be aluminium, tweezer or copper.In present embodiment, described reflection horizon 20 is aluminium.
In other embodiments, described area that can bright dipping region 1032 also can be not equal to the area of described reflector space 1031, for example be less than reflector space 1031, now, described bright dipping region 1032 is rectangular, and the length direction in described bright dipping region 1032 is parallel to the central shaft AA setting of described lamp guide 10.
In other embodiments, can, in the time that described lamp guide 10 is manufactured in moulding, by the appropriate section that forms described reflector space 1031 in mould is carried out to sandblast roughening treatment, thereby form described roughened layer 1033 on the lamp guide 10 obtaining in moulding.
In other embodiments, also can not form described roughened layer 1033, directly plate described reflection horizon 20 at described reflector space 1031.
In other embodiments, described reflection end face 102 also can be formed described roughened layer 1033 and is coated with described reflection horizon 20 by blasting treatment.
In other embodiments, described reflection end face 102 also can only be coated with described reflection horizon 20.
At other embodiments, described lamp guide 10 can be also rectangular-shaped or other shapes.
Refer to Fig. 4, for a kind of light emitting diode illuminating apparatus 100 provided by the invention, comprise a light emitting diode 30 and described lamp guide 10.
Described light emitting diode 30 is oppositely arranged with described light inlet end face 101, described in the light directive that described light emitting diode 30 sends, thereby light inlet end face 101 enters into described lamp guide 10, wherein bright dipping region 1032 invest described reflector space 1031 after total reflection occurs in described bright dipping region 1032 described in the direct directive of a part of light, reflection horizon 20 on described reflector space 1031 again by this part of light reflection to bright dipping region 1032, and penetrated by bright dipping region 1032; The direct directive reflector space 1031 of another part light also reflexes to described bright dipping region 1032 by the reflection horizon 20 on described reflector space 1031, and penetrated by described bright dipping region 1032; In addition, there is a small amount of light to penetrate from described reflection end face 102 through multiple reflections between described reflector space 1031 and described bright dipping region 1032.Be understandable that, the index path shown in Fig. 4 is only the schematic diagram that the present invention is described, all light that enter in described lamp guide may between described reflector space 1031 and described bright dipping region 1032, multiple reflections occur.
Owing to there being a small amount of light to penetrate from described reflection end face 102, therefore, can reduce from the brightness of described bright dipping region 1032 emergent raies.Further, be also coated with described reflection horizon 20 at described reflection end face 102, make a small amount of light that reflects end face described in directive again by penetrating from described bright dipping region 1302 after described reflector space 1031 and described bright dipping region 1032 multiple reflections.
In present embodiment, because described reflector space 1031 forms described roughened layer 1033, so, will there is scattering in the light of reflector space 1031 described in directive, make the final light penetrating from described bright dipping region 1032 more soft.
Thereby the present invention forms linear light source by described bright dipping region 1032 emergent raies, does not need multiple light emitting diodes to arrange into wire and forms linear light source, has reduced cost.
Be understandable that, those skilled in the art also can do other variation etc. and be used in design of the present invention in spirit of the present invention, as long as it does not depart from technique effect of the present invention and all can.The variation that these do according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (10)
1. a lamp guide, described lamp guide comprises that a light inlet end face, reflection end face opposing with described light inlet end face and one are connected the side of described light inlet end face and described reflection end face; Described side comprises a bright dipping region and a reflector space; This bright dipping region is rectangular, and the length direction in described bright dipping region is parallel to the central shaft setting of described lamp guide, and described reflector space is coated with one deck reflection horizon.
2. lamp guide as claimed in claim 1, is characterized in that, this bright dipping region and this reflector space are by a plane through the central shaft of described lamp guide separately.
3. lamp guide as claimed in claim 2, is characterized in that: described reflector space forms a roughened layer by sandblast, and described reflection horizon is plated on described roughened layer.
4. lamp guide as claimed in claim 1, is characterized in that: described reflection end face is also coated with described reflection horizon.
5. lamp guide as claimed in claim 1, is characterized in that: described lamp guide is right cylinder, and described reflector space and described bright dipping region are semi-cylindrical.
6. a light emitting diode illuminating apparatus, comprises a lamp guide and a light emitting diode; Described lamp guide comprises that a light inlet end face, reflection end face opposing with described light inlet end face and one are connected the side of described light inlet end face and described reflection end face; Described side comprises a bright dipping region and a reflector space; This bright dipping region is rectangular, and the length direction in described bright dipping region is parallel to the central shaft setting of described lamp guide, and described reflector space is coated with one deck reflection horizon; Described light emitting diode and described light inlet end face be oppositely arranged and for by luminous go out light directive described in light inlet end face.
7. light emitting diode illuminating apparatus as claimed in claim 6, is characterized in that: this bright dipping region and this reflector space are by a plane through the central shaft of described lamp guide separately.
8. light emitting diode illuminating apparatus as claimed in claim 7, is characterized in that: described reflector space forms a roughened layer by sandblast, and described reflection horizon is plated on described roughened layer.
9. light emitting diode illuminating apparatus as claimed in claim 6, is characterized in that: described reflection end face is also coated with described reflection horizon.
10. light emitting diode illuminating apparatus as claimed in claim 6, is characterized in that: described lamp guide is right cylinder, and described reflector space and described bright dipping region are semi-cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210493546.6A CN103852820A (en) | 2012-11-28 | 2012-11-28 | Light guide rod and light emitting diode lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210493546.6A CN103852820A (en) | 2012-11-28 | 2012-11-28 | Light guide rod and light emitting diode lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103852820A true CN103852820A (en) | 2014-06-11 |
Family
ID=50860697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210493546.6A Pending CN103852820A (en) | 2012-11-28 | 2012-11-28 | Light guide rod and light emitting diode lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103852820A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070081360A1 (en) * | 2005-06-28 | 2007-04-12 | Edward Bailey | Display backlight with improved light coupling and mixing |
| CN101038399A (en) * | 2007-04-30 | 2007-09-19 | 秦硕 | Device for generating belt like luminous source |
| CN201044028Y (en) * | 2007-02-05 | 2008-04-02 | 上海光远电子有限公司 | Backlight module using LED light source |
| CN201062761Y (en) * | 2007-06-29 | 2008-05-21 | 中华映管股份有限公司 | Backlight module |
| CN101630093A (en) * | 2008-07-15 | 2010-01-20 | 嘉威光电股份有限公司 | Optical diaphragm and backlight module using same |
| CN101630092A (en) * | 2008-07-15 | 2010-01-20 | 嘉威光电股份有限公司 | Optical diaphragm and backlight module applying same |
| CN201606697U (en) * | 2010-01-05 | 2010-10-13 | 胜华科技股份有限公司 | Light guide rod and lighting component with same |
-
2012
- 2012-11-28 CN CN201210493546.6A patent/CN103852820A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070081360A1 (en) * | 2005-06-28 | 2007-04-12 | Edward Bailey | Display backlight with improved light coupling and mixing |
| CN201044028Y (en) * | 2007-02-05 | 2008-04-02 | 上海光远电子有限公司 | Backlight module using LED light source |
| CN101038399A (en) * | 2007-04-30 | 2007-09-19 | 秦硕 | Device for generating belt like luminous source |
| CN201062761Y (en) * | 2007-06-29 | 2008-05-21 | 中华映管股份有限公司 | Backlight module |
| CN101630093A (en) * | 2008-07-15 | 2010-01-20 | 嘉威光电股份有限公司 | Optical diaphragm and backlight module using same |
| CN101630092A (en) * | 2008-07-15 | 2010-01-20 | 嘉威光电股份有限公司 | Optical diaphragm and backlight module applying same |
| CN201606697U (en) * | 2010-01-05 | 2010-10-13 | 胜华科技股份有限公司 | Light guide rod and lighting component with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8075157B2 (en) | LED module | |
| US8454191B2 (en) | LED lighting device | |
| US9103953B2 (en) | Off-axis illumination LED luminaire | |
| US20090274419A1 (en) | Manifold-type lightguide with reduced thickness | |
| EP2518395A3 (en) | Light emitting device and illumination device using the same | |
| EP2574837A3 (en) | Light for an aircraft | |
| RU2012110207A (en) | LIGHTING DEVICE AND LENS SUITABLE FOR SUCH LIGHTING DEVICE | |
| EP2270390A3 (en) | Lighting device | |
| CN102913781B (en) | Light-emitting device and lighting device | |
| US20120075884A1 (en) | Lighting device employing a light guide plate and a plurality of light emitting diodes | |
| TW201420962A (en) | Light wave guide rod and light emitting diode illumination device | |
| EP2629132A3 (en) | Optical reflection plate and lighting device having the same | |
| EP2226551A3 (en) | Optical element for elongate LED lamps | |
| EP2354633A3 (en) | Optic for an LED array | |
| CN102588876A (en) | Lens and illuminator provided with same | |
| US11036036B2 (en) | Optical device for modifying light distribution | |
| JP2013157618A (en) | Led light distribution lens, led lighting module provided with led light distribution lens and lighting apparatus provided with led lighting module | |
| TW201405069A (en) | Light source module | |
| CN103852820A (en) | Light guide rod and light emitting diode lighting device | |
| TW201508220A (en) | LED module | |
| CN201448658U (en) | Illumination device for uniform light emitting | |
| JP2012252990A (en) | Light guide member, fluorescent lamp type led lighting tube using the same, and lighting system | |
| CN202040745U (en) | Light source module | |
| CN200979110Y (en) | Surface light source device | |
| CN105572792A (en) | Light guide plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |