CN206918778U - A kind of two-sided light extraction panel light - Google Patents
A kind of two-sided light extraction panel light Download PDFInfo
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- CN206918778U CN206918778U CN201720455353.XU CN201720455353U CN206918778U CN 206918778 U CN206918778 U CN 206918778U CN 201720455353 U CN201720455353 U CN 201720455353U CN 206918778 U CN206918778 U CN 206918778U
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- transmissive film
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- reflective light
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Abstract
The utility model provides a kind of two-sided light extraction panel light, including：Light guide plate, the first diffuser plate, reflective light-transmissive film and the second diffuser plate；First diffuser plate and reflective light-transmissive film are respectively arranged at the front and back of light guide plate, and second diffuser plate is arranged on the one side of the reflective light-transmissive film away from the light guide plate；The light that LED light source is sent enters even light-guiding in the light guide plate from the side of the light guide plate, a portion light is sent after the reflective light-transmissive film reflection from first diffuser plate, and another part light is sent after the reflective light-transmissive film transmission from second diffuser plate.The utility model provides a kind of panel light, and its tow sides can have light injection, changes the optical mode that goes out illuminated between original panel light, reduces dazzle.
Description
Technical field
It the utility model is related to a kind of lighting device, more particularly to a kind of panel light.
Background technology
As LED light source is widely used in lighting field, the side luminescent panel lamp for possessing the advantages that frivolous is achieved.Such as
The present, panel light have been widely used in Administrative Area and factory work region.The light-emitting area of panel light is big, and light-emitting surface brightness is equal
Even, light extraction is soft, in the absence of serious glare problem, office operation can be given to provide good lighting environment.But people couple
Increasingly improved in the requirement of lighting quality, even if panel light also further reduce dazzle and could meet the requirement of people.
Utility model content
Technical problem underlying to be solved in the utility model is to provide a kind of panel light, and its tow sides can have light
Line projects, and changes the optical mode that goes out illuminated between original panel light, reduces dazzle.
In order to solve above-mentioned technical problem, the utility model provides a kind of two-sided light extraction panel light, including：It is guide-lighting
Plate, the first diffuser plate, reflective light-transmissive film and the second diffuser plate；
First diffuser plate and reflective light-transmissive film are respectively arranged at the front and back of light guide plate, second diffuser plate
It is arranged on the one side of the reflective light-transmissive film away from the light guide plate；
The light that LED light source is sent enters even light-guiding in the light guide plate from the side of the light guide plate, wherein one
Light splitter is sent after the reflective light-transmissive film reflection from first diffuser plate, and another part light is through the reflective light-transmissive film
Sent after transmission from second diffuser plate.
In a preferred embodiment：The reflective light-transmissive film is the adjustable reflective light-transmissive film of light transmittance.
In a preferred embodiment：There is liquid crystal molecule in the reflective light-transmissive film, when the reflective light-transmissive film is powered,
The liquid crystal molecule proper alignment；When the reflective light-transmissive film is not powered on, the liquid crystal molecule disordered arrangements.
In a preferred embodiment：The reflective light-transmissive film is divided into several zonules, when the reflective light-transmissive film is powered
When, some of regions are energization area, and other regions are non-energized region.
In a preferred embodiment：The length direction of the energization area and non-energized region along the reflective light-transmissive film
Set with width uniform intervals.
In a preferred embodiment：The second reflective light-transmissive film is additionally provided between the light guide plate and first diffuser plate.
In a preferred embodiment：The second reflective light-transmissive film is the adjustable reflective light-transmissive film of light transmittance.
In a preferred embodiment：There is liquid crystal molecule in the second reflective light-transmissive film, when the described second reflective printing opacity
When film is powered, the liquid crystal molecule proper alignment；When the described second reflective light-transmissive film is not powered on, the liquid crystal molecule is arranged in a jumble
Row.
In a preferred embodiment：The second reflective light-transmissive film is divided into several zonules, when described second reflective
When light film is powered, some of regions are energization area, and other regions are non-energized region.
In a preferred embodiment：The length of the energization area and non-energized region along the described second reflective light-transmissive film
Direction and width uniform intervals are set.
Compared to prior art, the technical solution of the utility model possesses following beneficial effect：
1. a kind of two-sided light extraction panel light provided by the utility model, reflective light-transmissive film is set at the back side of light guide plate, just
Foring the front and back of light guide plate has beam projecting, and after so setting, a part of light is straight from the front of light guide plate
Connecing injection and form illumination light, the light of another part projects from the back side of light guide plate and forms illumination light to after reflecting on ceiling,
So that the brightness in whole space is more uniform, dazzle is effectively reduced.
A kind of 2. two-sided light extraction panel light provided by the utility model, in order to realize the light extraction of light guide plate front and back ratio
Example can be adjusted, and utilize the characteristic neatly arranged after liquid crystal molecule plus DC voltage, it becomes possible to accomplish to work as the reflective light-transmissive film
During energization, the liquid crystal molecule proper alignment；When the reflective light-transmissive film is not powered on, the liquid crystal molecule disordered arrangements.Cause
This, when being powered or being not powered on, the light transmittance of reflective light-transmissive film is just changed.
3. a kind of two-sided light extraction panel light provided by the utility model, in reflective light-transmissive film the area of energization area be can be with
Regulation, by adjusting the size of energization area, further increase the adjustable range of light transmittance.
4. a kind of two-sided light extraction panel light provided by the utility model, is additionally provided between light guide plate and first diffuser plate
Second reflective light-transmissive film.After the second reflective light-transmissive film, the structure of light guide plate front and back is more symmetrical, light transmittance
Adjustable range also just accordingly adds.
Brief description of the drawings
Fig. 1 is the panel light structure explosive view of the utility model preferred embodiment 1；
Fig. 2 is the panel light structure explosive view of the utility model preferred embodiment 2.
Embodiment
In order to be better understood by technology contents of the present utility model, especially exemplified by specific implementation method and coordinate institute's accompanying drawings explanation
It is as follows.
Embodiment 1
With reference to figure 1, a kind of two-sided light extraction panel light, including：Light guide plate 1, the first diffuser plate 2, reflective light-transmissive film 3 and second
Diffuser plate 4；
First diffuser plate 2 and reflective light-transmissive film 3 are respectively arranged at the front and back of light guide plate 1, and described second expands
Fall apart and 4 be arranged on one side of the reflective light-transmissive film 3 away from the light guide plate 1；
Due to the presence of reflective light-transmissive film 3, led described in the light that LED light source is sent from the side of the light guide plate 1 entrance
Even light-guiding in tabula rasa 1, a portion light are sent after the reflective light-transmissive film 3 reflects from first diffuser plate 2, separately
A part of light is sent after the reflective light-transmissive film 3 transmits from second diffuser plate 2.
Therefore, being formed the front and back of light guide plate 1 has beam projecting, after so setting, a part of light
Directly projected from the front of light guide plate 1 and form illumination light, the back side of the light from light guide plate 1 of another part is projected to ceiling
Illumination light is formed after reflection, so that the brightness in whole space is more uniform, effectively reduces dazzle.
Embodiment 2
Although panel light in embodiment 1 realizes two-sided light extraction, reduce dazzle.But its light extraction model comparision is inflexible,
It can not adjust.In order to realize that the light extraction ratio of the front and back of light guide plate 1 can be adjusted, in the present embodiment：
The reflective light-transmissive film 3 is the adjustable reflective light-transmissive film of light transmittance.By adjusting light transmittance, it is possible to change guide-lighting
The light extraction ratio of plate front and back.
In order to realize that the light transmittance of reflective light-transmissive film 3 can adjust, there is liquid crystal molecule in the reflective light-transmissive film 3, utilize
Liquid crystal molecule adds the characteristic neatly arranged after DC voltage, it becomes possible to accomplishes when the reflective light-transmissive film 3 is powered, the liquid crystal
Molecule proper alignment；When the reflective light-transmissive film 3 is not powered on, the liquid crystal molecule disordered arrangements.Therefore, it is being powered or is not leading to
When electric, the light transmittance of reflective light-transmissive film 3 is just changed.
After so setting, the light transmittance of reflective light-transmissive film 3 is adjusted also than relatively limited, is only powered and is not powered on two kinds of printing opacities
Rate, it is difficult still the needs for meeting user.Therefore, in order to further improve the adjustable range of light transmittance, the reflective light-transmissive film 3
It is divided into several zonules, when the reflective light-transmissive film is powered, some of regions are energization area, and other regions are non-through
Electric region.
In the present embodiment, the length direction and width of the energization area and non-energized region along the reflective light-transmissive film
Direction uniform intervals are set.
In addition, these energization areas are powered up control respectively, it is powered by adjusting different number of energization area, so
Just considerably increase the adjustable range of light transmittance.The light emission rate at the back side of light guide plate 1 may finally be caused in 10%-40% model
It is adjusted in enclosing.
In order to further increase the adjustable range of light transmittance, with reference to figure 2, in the present embodiment, the light guide plate 1 and described the
The second reflective light-transmissive film 5 is additionally provided between one diffuser plate 2.After the second reflective light-transmissive film 5, the front and back of light guide plate 1
Structure it is more symmetrical, the adjustable range of light transmittance also just accordingly adds.And the second reflective light-transmissive film 5 can also be applied such as
Upper described structure, increase the adjustable range of light transmittance so that the light emission rate of light guide plate 1 has reached 10%-90% regulation model
Enclose.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by scope of the claims.
Claims (10)
- A kind of 1. two-sided light extraction panel light, it is characterised in that including：Light guide plate, the first diffuser plate, reflective light-transmissive film and second are expanded Fall apart；First diffuser plate and reflective light-transmissive film are respectively arranged at the front and back of light guide plate, and second diffuser plate is set In the one side of the reflective light-transmissive film away from the light guide plate；The light that LED light source is sent enters even light-guiding in the light guide plate, a portion light from the side of the light guide plate Line is sent after the reflective light-transmissive film reflection from first diffuser plate, and another part light transmits through the reflective light-transmissive film Sent afterwards from second diffuser plate.
- A kind of 2. two-sided light extraction panel light according to claim 1, it is characterised in that：The reflective light-transmissive film is light transmittance Adjustable reflective light-transmissive film.
- A kind of 3. two-sided light extraction panel light according to claim 2, it is characterised in that：There is liquid in the reflective light-transmissive film Brilliant molecule, when the reflective light-transmissive film is powered, the liquid crystal molecule proper alignment；When the reflective light-transmissive film is not powered on, The liquid crystal molecule disordered arrangements.
- A kind of 4. two-sided light extraction panel light according to claim 3, it is characterised in that：The reflective light-transmissive film is divided into some Individual zonule, when the reflective light-transmissive film is powered, some of regions are energization area, and other regions are non-energized region.
- A kind of 5. two-sided light extraction panel light according to claim 4, it is characterised in that：The energization area and non-energized area Length direction and width uniform intervals of the domain along the reflective light-transmissive film are set.
- A kind of 6. two-sided light extraction panel light according to any one of claim 1-5, it is characterised in that：The light guide plate with The second reflective light-transmissive film is additionally provided between first diffuser plate.
- A kind of 7. two-sided light extraction panel light according to claim 6, it is characterised in that：The second reflective light-transmissive film is The adjustable reflective light-transmissive film of light rate.
- A kind of 8. two-sided light extraction panel light according to claim 7, it is characterised in that：Have in the second reflective light-transmissive film There is liquid crystal molecule, when the described second reflective light-transmissive film is powered, the liquid crystal molecule proper alignment；When the described second reflective printing opacity When film is not powered on, the liquid crystal molecule disordered arrangements.
- A kind of 9. two-sided light extraction panel light according to claim 8, it is characterised in that：The second reflective light-transmissive film is divided into Several zonules, when the described second reflective light-transmissive film is powered, some of regions are energization area, and other regions are non-through Electric region.
- A kind of 10. two-sided light extraction panel light according to claim 9, it is characterised in that：The energization area and non-energized Length direction and width uniform intervals of the region along the described second reflective light-transmissive film are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720455353.XU CN206918778U (en) | 2017-04-27 | 2017-04-27 | A kind of two-sided light extraction panel light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720455353.XU CN206918778U (en) | 2017-04-27 | 2017-04-27 | A kind of two-sided light extraction panel light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918778U true CN206918778U (en) | 2018-01-23 |
Family
ID=61307367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720455353.XU Active CN206918778U (en) | 2017-04-27 | 2017-04-27 | A kind of two-sided light extraction panel light |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848608A (en) * | 2019-11-27 | 2020-02-28 | 派洛奇科技（广东）有限公司 | Lighting ceiling and LED light-emitting device |
| WO2023226775A1 (en) * | 2022-05-23 | 2023-11-30 | 北京沃东天骏信息技术有限公司 | Arc-shaped lamp |
-
2017
- 2017-04-27 CN CN201720455353.XU patent/CN206918778U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848608A (en) * | 2019-11-27 | 2020-02-28 | 派洛奇科技（广东）有限公司 | Lighting ceiling and LED light-emitting device |
| WO2023226775A1 (en) * | 2022-05-23 | 2023-11-30 | 北京沃东天骏信息技术有限公司 | Arc-shaped lamp |
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