CN102392943A - Area source device and illuminating device - Google Patents
Area source device and illuminating device Download PDFInfo
- Publication number
- CN102392943A CN102392943A CN2011102486114A CN201110248611A CN102392943A CN 102392943 A CN102392943 A CN 102392943A CN 2011102486114 A CN2011102486114 A CN 2011102486114A CN 201110248611 A CN201110248611 A CN 201110248611A CN 102392943 A CN102392943 A CN 102392943A
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- source device
- light
- light source
- lgp
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Abstract
The invention discloses an area source device, comprising a light guide plate and a number of point light sources, wherein the light guide plate includes an incoming light surface which is on the side of the light guide plate; a number of point light sources are installed adjacent to the incoming light surface of the light guide plate; a light filter is arranged between the point light sources and the incoming light surface. Because the light filter is arranged between the point light sources and the incoming light surface, the light filter can extract the useful light spectrum, change the colour temperature and increase the colour developing effect; because the filter is arranged on the incoming light surface of the light guide plate side, the material consumption and the cost of the light filter can be reduced, and the light performance of the area source device can be improved with low cost.
Description
Technical field
The present invention relates to a kind of planar light source device, particularly a kind of lighting apparatus with this planar light source device.
Background technology
The traditional lighting field uses light sources such as incandescent lamp, fluorescent lamp as illuminator, and not only power consumption is high, caloric value is big, light source is prone to broken and ultraviolet ray is polluted, and environment also is prone to pollute and endanger.People adopted electricity-saving lamp to replace incandescent lamp bulb afterwards, aspect energy saving, obtained positive effect, but the electricity-saving lamp flicker is serious, and the light stroboscopic is inhomogeneous, and the life-span is shorter.In recent years; After LED becomes the light source of new illumination; Application aspect normal lighting more and more widely; Yet the LED panel light that existing side is luminous etc. exists actual bright dipping to reduce the problem of colour rendering, and the LED light that it is good that reason is original colour rendering can pass through the transmission of the long distance of LGP, and the composition in the transparent plastic lets photochromic quality reduce.
Summary of the invention
The technical problem that the present invention mainly solves provide a kind of simple in structure, can change colour temperature, improve colour rendering, lower-cost planar light source device.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of planar light source device is provided; Comprise LGP and a plurality of spot light, said LGP comprises incidence surface, and said incidence surface is positioned at the side of said LGP; The said incidence surface setting of the adjacent said LGP of said a plurality of spot lights also is provided with optical filter between said a plurality of spot lights and said incidence surface.
In preferred embodiment of the present invention, said LGP is a rectangular configuration, and it comprises at least two incidence surfaces, and said two incidence surfaces lay respectively at the limit, two opposite sides of said LGP.
In preferred embodiment of the present invention, said planar light source device comprises at least two optical filters, and said two optical filters are arranged at respectively between said a plurality of spot light and said two incidence surfaces.
In preferred embodiment of the present invention, said spot light is a light emitting diode.
In preferred embodiment of the present invention, said spot light is linear array.
In preferred embodiment of the present invention, said spot light is arranged.
In preferred embodiment of the present invention, the light emission direction of said spot light is towards said incidence surface.
In preferred embodiment of the present invention, further comprise printed circuit board (PCB), said a plurality of spot lights are separately positioned on the said printed circuit board (PCB).
The invention has the beneficial effects as follows: the present invention is owing to be provided with optical filter between LGP and a plurality of spot light; This optical filter can extract useful spectrum, changes colour temperature, improves color developing effect; Because optical filter is arranged on the incidence surface of LGP side; Can reduce the consumption of material, reduce the cost of optical filter, and promote the optical property of this planar light source device with minimum price.
Description of drawings
Fig. 1 is the structural representation of lighting apparatus of the present invention;
Fig. 2 is the decomposing schematic representation of lighting apparatus shown in Figure 1;
Fig. 3 is that the A-A of Fig. 2 is to cutaway view;
The mark of each parts is following in the accompanying drawing: 1, frame, 2, LGP, 3, optical filter, 4, spot light, 5, scratch resistant transparent plastic sheet, 6, printed circuit board (PCB), 7, incidence surface.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
To shown in Figure 3, the embodiment of the invention is following like Fig. 1:
A kind of planar light source device; Comprise LGP 2 and a plurality of spot lights 4; Said LGP 2 comprises incidence surface 7, and said incidence surface 7 is positioned at the side of said LGP 2, and the said incidence surface 7 of said a plurality of spot light 4 adjacent said LGPs 2 is provided with; Between said a plurality of spot lights 4 and said incidence surface 7, also be provided with optical filter 3, said optical filter 3 is glass or plastic material.
A kind of planar light source device; Comprise LGP 2 and a plurality of spot lights 4; Said LGP 2 comprises incidence surface 7, and said incidence surface 7 is positioned at the side of said LGP 2, and the said incidence surface 7 of said a plurality of spot light 4 adjacent said LGPs 2 is provided with; Between said a plurality of spot lights 4 and said incidence surface 7, also be provided with optical filter 3, said optical filter 3 is glass or plastic material.
Said LGP 2 is a rectangular configuration; It comprises at least two incidence surfaces 7; Said two incidence surfaces 7 lay respectively at the limit, two opposite sides of said LGP 2; Said planar light source device comprises at least two optical filters 3, and said two optical filters 3 are arranged at respectively between said a plurality of spot light 4 and said two incidence surfaces 7, and the light emission direction of spot light 4 is towards said incidence surface 7.
Said spot light 4 is a light emitting diode, and as required, said spot light 4 can be linear array or arranged.
Said planar light source device also comprises printed circuit board (PCB) 6, and said a plurality of spot lights 4 are separately positioned on the said printed circuit board (PCB) 6.
The present invention also provides a kind of lighting apparatus, comprises rectangular shaped rim 1, is provided with this planar light source device in the said rectangular shaped rim 1, and the planar light source device top is coated with scratch resistant transparent plastic sheet 5.
The present invention is owing to be provided with optical filter 3 between LGP 2 and a plurality of spot light 4; This optical filter 3 can extract useful spectrum, changes colour temperature, improves color developing effect; Because optical filter 3 is arranged on the incidence surface 7 of LGP 2 sides; Can reduce the consumption of material, reduce the cost of optical filter 7, and promote the optical property of this planar light source device and lighting apparatus with minimum price.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. planar light source device; Comprise LGP (2) and a plurality of spot light (4); It is characterized in that: said LGP (2) comprises incidence surface (7); Said incidence surface (7) is positioned at the side of said LGP (2), and the said incidence surface (7) of the adjacent said LGPs of said a plurality of spot lights (4) (2) is provided with, and between said a plurality of spot lights (4) and said incidence surface (7), also is provided with optical filter (3).
2. planar light source device according to claim 1 is characterized in that: said LGP (2) is a rectangular configuration, and it comprises at least two incidence surfaces (7), and said two incidence surfaces (7) lay respectively at the limit, two opposite sides of said LGP (2).
3. planar light source device according to claim 2 is characterized in that: said planar light source device comprises at least two optical filters (3), and said two optical filters (3) are arranged at respectively between said a plurality of spot light (4) and said two incidence surfaces (7).
4. planar light source device according to claim 1 is characterized in that: said spot light (4) is a light emitting diode.
5. planar light source device according to claim 1 is characterized in that: said spot light (4) is linear array.
6. planar light source device according to claim 1 is characterized in that: said spot light (4) is arranged.
7. planar light source device according to claim 1 is characterized in that: the light emission direction of said spot light (4) is towards said incidence surface (7).
8. planar light source device according to claim 1 is characterized in that: further comprise printed circuit board (PCB) (6), said a plurality of spot lights (4) are separately positioned on the said printed circuit board (PCB) (6).
9. a lighting apparatus is characterized in that: comprise the arbitrary described planar light source device of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102486114A CN102392943A (en) | 2011-08-26 | 2011-08-26 | Area source device and illuminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102486114A CN102392943A (en) | 2011-08-26 | 2011-08-26 | Area source device and illuminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102392943A true CN102392943A (en) | 2012-03-28 |
Family
ID=45860303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102486114A Pending CN102392943A (en) | 2011-08-26 | 2011-08-26 | Area source device and illuminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102392943A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791274A (en) * | 2013-10-30 | 2014-05-14 | 友达光电股份有限公司 | Planar light source generating device |
| CN108730855A (en) * | 2018-08-31 | 2018-11-02 | 李文星 | High-voltage LED panel light |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918757A (en) * | 2008-02-28 | 2010-12-15 | 夏普株式会社 | Backlight device, display device and television receiver |
| WO2011081014A1 (en) * | 2009-12-28 | 2011-07-07 | シャープ株式会社 | Lighting device, display device, and television reception device |
-
2011
- 2011-08-26 CN CN2011102486114A patent/CN102392943A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101918757A (en) * | 2008-02-28 | 2010-12-15 | 夏普株式会社 | Backlight device, display device and television receiver |
| WO2011081014A1 (en) * | 2009-12-28 | 2011-07-07 | シャープ株式会社 | Lighting device, display device, and television reception device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791274A (en) * | 2013-10-30 | 2014-05-14 | 友达光电股份有限公司 | Planar light source generating device |
| CN103791274B (en) * | 2013-10-30 | 2015-09-02 | 友达光电股份有限公司 | Planar light source generating device |
| CN108730855A (en) * | 2018-08-31 | 2018-11-02 | 李文星 | High-voltage LED panel light |
| WO2020042416A1 (en) * | 2018-08-31 | 2020-03-05 | 李文星 | High voltage led panel lamp |
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Application publication date: 20120328 |