CN205979421U - Flat light source's L type optical structure and flat light source who has this structure - Google Patents
Flat light source's L type optical structure and flat light source who has this structure Download PDFInfo
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- CN205979421U CN205979421U CN201621048826.6U CN201621048826U CN205979421U CN 205979421 U CN205979421 U CN 205979421U CN 201621048826 U CN201621048826 U CN 201621048826U CN 205979421 U CN205979421 U CN 205979421U
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Abstract
The utility model discloses a flat light source's L type optical structure and flat light source who has this structure, include light guide plate and two LED lamp strips that are located light guide plate side department, the light guide plate side of being slice, the light guide plate has the relative back and goes out the plain noodles and lie in the back and go out four sides between the plain noodles, the back of light guide plate has a plurality of light guide network point, two LED lamp strip set up respectively in a pair of adjacent side department of light guide plate, another of light guide plate is provided with "Cushion" to adjacent side department, still includes reflection stratum and frame, the reflection stratum is located the back side of light guide plate. The utility model provides a L type optical structure and the flat light source who has this L type optical structure, the the thermal expansion that can absorb the light guide plate with "Cushion"'s elastic deformation warp to avoid light guide plate extrusion LED lamp pearl, stop to damage because of light guide plate the thermal expansion warp the LED lamp pearl that leads to, can effectively promote LED flat light source's life.
Description
Technical field
This utility model LED planar lamp field is and in particular to a kind of be used for the planes such as flat lamp, lamp box or display backplane
The new optical texture of light source.
Background technology
LED planar lamp is a high-grade indoor illumination light fitting, and its outer rim is typically made up of aluminium alloy, beneficial to radiating,
Light source is LED, and whole Design of Luminaires is attractive in appearance succinctly, air is luxurious, existing good illuminating effect, can give people to bring the sense of U.S. again
It is subject to.LED planar lamp design is unique, and light forms one kind uniformly flat luminous effect, illumination after the light guide plate of high transmission rate
Uniformity is good, light is soft, comfortable and not blind bright, can effectively alleviate eyestrain.LED planar lamp is radiationless, will not stimulate pregnant
Woman, old man, the skin of child.LED planar lamp also has that ultra-thin, structure is simplified, is readily integrated to furred ceiling, being hardly damaged and not
The advantages of can shelter evil people and countenance evil practices.Based on above-mentioned advantage, the application of LED planar lamp is more and more extensive.However, existing LED planar lamp
Usually normal service life is reduced due to the damage of LED lamp bead, studying carefully its main cause is, as shown in figure 1, in prior art
In, LED lamp bar A being mounted with several LED lamp bead in LED planar lamp have two and positioned opposite in light guide plate B relatively
Both sides, after opening LED planar lamp, while LED lamp bead lights, produce heat, light guide plate can be swollen to surrounding after being heated
Swollen, thus the LED lamp bead being expressed in the LED lamp bar of both sides, cause the bad damage of LED lamp bead, shorten whole LED planar lamp
Service life.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of L-type optical texture and has this L-type optical texture
Planar light source, can absorb the expanded by heating deformation of light guide plate, thus avoiding light guide plate to squeeze with the elastic deformation of padded coaming
Pressure LED lamp bead, the LED lamp bead preventing to lead to because of the deformation of light guide plate expanded by heating is damaged, and can effectively lift LED plane light source
Service life.
This utility model be employed technical scheme comprise that to solve its technical problem：
A kind of L-type optical texture of planar light source, two LED lamp bar including light guide plate and at light guide plate side,
Described light guide plate is square piece shape, and described light guide plate has the relative back side and exiting surface and four sides, described light guide plate
The back side has multiple light directing sites, and two described LED lamp bar are respectively arranged at a pair adjacent side of described light guide plate, institute
State the another of light guide plate and be provided with padded coaming at adjacent side.
Further say, the arrangement of described light directing site is with the intersection point of the pair of adjacent side as starting point
And the back side along light guide plate is gradually increased the unit area coverage of light directing site.
Further say, described padded coaming be the bar shaped of the side continuous distribution along light guide plate fender material strip or
It is the padded coaming block of the point-like of side Disjunct distribution along light guide plate.
Further say, the arrangement of described light directing site is one of following three kinds of arrangements：
First, the spacing of described light directing site is identical and size of light directing site is gradually increased；
2nd, the spacing of described light directing site be gradually increased and light directing site equivalently-sized；
3rd, the spacing of described light directing site and size are all gradually increased.
Further say, described light directing site is to protrude site or indent site.
Further say, described light directing site is one of following structure：
First, described light directing site is by silk screen printing or to be coated on the protrusion height that the diffusant material of guide-lighting back is constituted
Spend the protrusion site for 0.01～0.2mm；
2nd, described light directing site be projected by mould be transferred to the protrusion height that guide-lighting back formed for 0.001～
The protrusion site of 0.03mm；
3rd, described light directing site be the hollow depth being formed in guide-lighting back by hot pressing mode be 0.01～0.2mm
Indent site；
4th, described light directing site be by radium-shine processing guide-lighting back formed hollow depth be 0.05～0.3mm
Indent site.
It is preferred that described padded coaming be spring, EVA padded coaming, EPS padded coaming, EPP padded coaming, EPE delay
Rush material or EPO padded coaming.
It is preferred that described light directing site be shaped as rhombus, regular pentagon, equilateral triangle, circle, regular hexagon, ellipse
Circle or octagon.
A kind of planar light source with L-type optical texture, including described L-type optical texture, also includes reflecting layer and housing,
Described reflecting layer is located at the rear side of described light guide plate, and described light guide plate and described reflecting layer are fixed on outside described in edge
Frame, described LED lamp bar is located between described housing and described light guide plate, and described padded coaming is located at described housing and described leaded light
Between plate.
Further say, described padded coaming is affixed on the side of described light guide plate or the medial surface of housing.
The beneficial effects of the utility model are：The middle LED lamp bar of L-type optical texture of the present utility model is arranged on light guide plate
A pair adjacent side, and another be provided with padded coaming at adjacent side, when light guide plate is heated, due to be provided with slow
Rush the resistance that material direction is subject to little compared with being provided with LED lamp bar direction, make light guide plate overall to the expansion of padded coaming direction, and delay
Rushing material also occurs indent or the elastic deformation of contraction to deform come the expanded by heating to absorb light guide plate, thus avoiding light guide plate to extrude
LED lamp bead, the LED lamp bead preventing to lead to because of the deformation of light guide plate expanded by heating is damaged, and can effectively lift LED plane light source
Service life；When light guide plate is not heated, light guide plate turns cold retraction, and padded coaming also restores to the original state therewith；Guide-lighting on light guide plate
The arrangement of site, can make the light that LED lamp bead sends uniformly light after light guide plate；Reflecting layer reflects light back into
Light guide plate, improves the service efficiency of light.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing detailed
Describe in detail bright as after.
Brief description
Fig. 1 is the LED lamp bar of prior art and the arrangement schematic diagram of light guide plate；
Fig. 2 is the schematic diagram of L-type optical texture of the present utility model；
Fig. 3 be light directing site of the present utility model a kind of arrangement schematic diagram (taking circular shaped lattice point as a example, light directing site
Spacing is identical and size of light directing site is gradually increased)；
Fig. 4 is a kind of cross-sectional view of LED planar lamp of the present utility model.
Specific embodiment
Below by way of specific instantiation, specific embodiment of the present utility model is described, those skilled in the art can be by
Content disclosed in the present specification understands advantage of the present utility model and effect easily.This utility model can also be other different
Mode be practiced, i.e. under the scope of without departing substantially from disclosed in this utility model, different modifications and change can be given.
Embodiment 1：Referring to Fig. 2 to Fig. 3, a kind of L-type optical texture of planar light source of the present utility model, including light guide plate
2 and two LED lamp bar 1 being located at light guide plate side, described light guide plate 2 is square piece shape, and described light guide plate 2 has the relative back of the body
Face and exiting surface and be located at four sides between the back side and exiting surface, the back side of described light guide plate 2 has multiple leaded light nets
Point 21, two described LED lamp bar 1 are respectively arranged at a pair adjacent side of described light guide plate 2, described light guide plate 2 another
It is provided with padded coaming 3 at a pair of adjacent side.
The arrangement of described light directing site 21 be with the intersection point of the pair of adjacent side as starting point and along
The back side of light guide plate is gradually increased the unit area coverage of light directing site.
In the present embodiment, described padded coaming 3 is the strip buffer material strips of the side continuous distribution along light guide plate 2.
But in the specific implementation, this padded coaming 3 can also be the padded coaming block of the point-like of the side Disjunct distribution along light guide plate.
In practicable scheme, the arrangement of described light directing site 21 can be in following three kinds of arrangements
A kind of：
First, the spacing of described light directing site 21 is identical and size of light directing site is gradually increased；
2nd, the spacing of described light directing site 21 be gradually increased and light directing site equivalently-sized；
3rd, the spacing of described light directing site 21 and size are all gradually increased.
As shown in figure 3, light directing site 21 adopts the first arrangement in the present embodiment.
Described light directing site 21 is to protrude site or indent site, can be specifically one of following structure：
First, described light directing site 21 is by silk screen printing or to be coated on the protrusion that the diffusant material of guide-lighting back is constituted
It is highly the protrusion site of 0.01～0.2mm；
2nd, described light directing site 21 be projected by mould be transferred to the protrusion height that guide-lighting back formed for 0.001～
The protrusion site of 0.03mm；
3rd, described light directing site 21 be the hollow depth being formed in guide-lighting back by hot pressing mode be 0.01～
The indent site of 0.2mm；
4th, described light directing site 21 be by radium-shine processing guide-lighting back formed hollow depth be 0.05～
The indent site of 0.3mm.
Described padded coaming 3 be spring, EVA padded coaming, EPS padded coaming, EPP padded coaming, EPE padded coaming or
EPO padded coaming, but not limited to this.
Described light directing site 21 be shaped as rhombus, regular pentagon, equilateral triangle, circle, regular hexagon, ellipse or just
Octagon, but not limited to this.
Embodiment 2：Referring to Fig. 4, this utility model also provides a kind of planar light source with L-type optical texture, including institute
State L-type optical texture, also include reflecting layer 4 and housing 5, described reflecting layer 4 is located at the rear side of described light guide plate 2, described leads
Described housing 5 is fixed in edge in tabula rasa 2 and described reflecting layer 4, and described LED lamp bar 1 is located at described housing 5 and described leaded light
Between plate 2, described padded coaming 3 is located between described housing 5 and described light guide plate 2.
Described padded coaming 3 is affixed on the side of described light guide plate 2 or the medial surface of housing 5.
Planar light source of the present utility model also can arrange diffusion layer 6 in the exiting surface side of light guide plate further, with further
Soft light and the range of exposures expanding light；Can also be further integrated with housing by diffusion layer；More can be
It is provided with chromatograph outside diffusion layer or inject the materials such as color masterbatch, so that planar light source has colored light in diffusion layer；Also may be used
To arrange backboard 7 outside reflecting layer, to protect whole optical texture and to increase the fastness of planar light source and be easily installed.
Planar light source of the present utility model can be LED planar lamp, lamp box or display backplane.
Operation principle of the present utility model：The middle LED lamp bar setting of the L-type optical texture of planar light source of the present utility model
In a pair adjacent side of light guide plate, and another be provided with padded coaming at adjacent side, when light guide plate is heated, due to
It is provided with the resistance that padded coaming direction is subject to little compared with being provided with LED lamp bar direction, make light guide plate overall to padded coaming direction
Expansion, and padded coaming also occurs indent or the elastic deformation of contraction to deform come the expanded by heating to absorb light guide plate, thus avoiding
Light guide plate extrudes LED lamp bead, and the LED lamp bead preventing to lead to because of the deformation of light guide plate expanded by heating is damaged, and can effectively lift LED
The service life of planar light source；When light guide plate is not heated, light guide plate turns cold retraction, and padded coaming also restores to the original state therewith；Lead
The arrangement of light directing site on tabula rasa, can make the light that LED lamp bead sends uniformly light after light guide plate；Reflecting layer will
Light is reflected back light guide plate, improves the service efficiency of light；Diffusion layer soft light and the range of exposures expanding light further；
Backboard is protected whole optical texture and is increased the fastness of planar light source and be easily installed.
The above is only preferred implementation of the present utility model, be not limited to this utility model it is noted that
For those skilled in the art, on the premise of without departing from this utility model know-why, can also do
Go out some improvement and modification, these improve and modification also should be regarded as protection domain of the present utility model.
Claims (10)
1. the L-type optical texture of a kind of planar light source, two LED lamp bar including light guide plate and at light guide plate side, its
It is characterised by：Described light guide plate is square piece shape, and described light guide plate has the relative back side and exiting surface and four sides, described
The back side of light guide plate has multiple light directing sites, and be respectively arranged at described light guide plate a pair of two described LED lamp bar is adjacent
At side, the another of described light guide plate is provided with padded coaming at adjacent side.
2. planar light source as claimed in claim 1 L-type optical texture it is characterised in that：The arrangement knot of described light directing site
Structure is with the intersection point of the pair of adjacent side as starting point and to be gradually increased light directing site along the back side of light guide plate
Unit area coverage.
3. planar light source as claimed in claim 1 L-type optical texture it is characterised in that：Described padded coaming is along leading
The fender material strip of the bar shaped of side continuous distribution of tabula rasa or along light guide plate side Disjunct distribution point-like buffering
Material block.
4. planar light source as claimed in claim 2 L-type optical texture it is characterised in that：The arrangement knot of described light directing site
Structure is one of following three kinds of arrangements：
First, the spacing of described light directing site is identical and size of light directing site is gradually increased；
2nd, the spacing of described light directing site be gradually increased and light directing site equivalently-sized；
3rd, the spacing of described light directing site and size are all gradually increased.
5. planar light source as claimed in claim 1 L-type optical texture it is characterised in that：Described light directing site is to protrude net
Point or indent site.
6. planar light source as claimed in claim 5 L-type optical texture it is characterised in that：Described light directing site is following knot
One of structure：
First, described light directing site is by silk screen printing or to be coated on the protrusion height that the diffusant material of guide-lighting back constitutes and be
The protrusion site of 0.01～0.2mm；
2nd, described light directing site is to project by mould that to be transferred to the protrusion height that guide-lighting back formed be 0.001～0.03mm
Protrusion site；
3rd, described light directing site is to be in 0.01～0.2mm by the hollow depth that hot pressing mode is formed in guide-lighting back
Recessed site；
4th, described light directing site be by radium-shine processing guide-lighting back formed hollow depth be in 0.05～0.3mm
Recessed site.
7. planar light source as claimed in claim 1 L-type optical texture it is characterised in that：Described padded coaming be spring,
EVA padded coaming, EPS padded coaming, EPP padded coaming, EPE padded coaming or EPO padded coaming.
8. planar light source as claimed in claim 1 L-type optical texture it is characterised in that：Being shaped as of described light directing site
Rhombus, regular pentagon, equilateral triangle, circle, regular hexagon, ellipse or octagon.
9. a kind of planar light source of the L-type optical texture of the planar light source having described in claim 1 it is characterised in that：Including
Described L-type optical texture, also includes reflecting layer and housing, and described reflecting layer is located at the rear side of described light guide plate, described leaded light
Described housing is fixed in edge in plate and described reflecting layer, and described LED lamp bar is located between described housing and described light guide plate,
Described padded coaming is located between described housing and described light guide plate.
10. planar light source as claimed in claim 9 it is characterised in that：Described padded coaming is affixed on the side of described light guide plate
Or the medial surface of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048826.6U CN205979421U (en) | 2016-08-30 | 2016-08-30 | Flat light source's L type optical structure and flat light source who has this structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621048826.6U CN205979421U (en) | 2016-08-30 | 2016-08-30 | Flat light source's L type optical structure and flat light source who has this structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205979421U true CN205979421U (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621048826.6U Active CN205979421U (en) | 2016-08-30 | 2016-08-30 | Flat light source's L type optical structure and flat light source who has this structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205979421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195804A (en) * | 2016-08-30 | 2016-12-07 | 昆山市诚泰电气股份有限公司 | The L-type optical texture of planar light source and there is the planar light source of this structure |
-
2016
- 2016-08-30 CN CN201621048826.6U patent/CN205979421U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195804A (en) * | 2016-08-30 | 2016-12-07 | 昆山市诚泰电气股份有限公司 | The L-type optical texture of planar light source and there is the planar light source of this structure |
| WO2018040681A1 (en) * | 2016-08-30 | 2018-03-08 | 昆山市诚泰电气股份有限公司 | Panel light |
| EP3358247A4 (en) * | 2016-08-30 | 2018-11-21 | Kunshan Chengtai Electric Co., Ltd | Panel light |
| US10274669B2 (en) | 2016-08-30 | 2019-04-30 | Kunshan Chengtai Electric Co., Ltd | Flat lamp having a sucking buffer layer for attaching a backlighting system to a backplane preventing deformation of the light guide plate |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |