CN203215565U - Optical element capable of reducing yellow halo phenomenon - Google Patents
Optical element capable of reducing yellow halo phenomenon Download PDFInfo
- Publication number
- CN203215565U CN203215565U CN 201320195468 CN201320195468U CN203215565U CN 203215565 U CN203215565 U CN 203215565U CN 201320195468 CN201320195468 CN 201320195468 CN 201320195468 U CN201320195468 U CN 201320195468U CN 203215565 U CN203215565 U CN 203215565U
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- China
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- optical element
- alcove
- dizzy phenomenon
- yellow dizzy
- element capable
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Abstract
The utility model discloses an optical element capable of reducing a yellow halo phenomenon. The optical element capable of reducing the yellow halo phenomenon is suitable for being installed and arranged corresponding to a light-emitting diode. The optical element capable of reducing the yellow halo phenomenon comprises a light inlet face and a light outlet curved face. The light inlet face comprises a flat part and a concave chamber, wherein the concave chamber is located in the center of the flat part, a light-emitting diode is arranged corresponding to the concave chamber, and the inner side face of the concave chamber is a rough surface. The light outlet curved face and the light inlet face are oppositely arranged and generally arc-shaped curved faces. The optical element capable of reducing the yellow halo phenomenon has the advantages that due to the fact that the rough surface is formed on the inner surface of the concave chamber, light outlet optical features can be improved, the original yellow halo phenomenon is reduced, the purpose that the light outlet optical features are improved is actually realized, and furthermore the optical element capable of reducing the yellow halo phenomenon can better be applied to large-scale thin LED televisions.
Description
Technical field
The utility model relates to a kind of optical element, particularly relates to a kind of optical element that reduces yellow dizzy phenomenon.
Background technology
In the continuous directions such as big shapeization, quantification in light weight, thickness thin typeization, narrow frame design, high-performance, high-grade, low cost and environmental protection constantly in the progress towards size of the module backlight of LED TV, how to promote these numerous design considerations as far as possible, become the development trend of LED TV module backlight in recent years.Yet, heal the situation that becomes ripe in liquid crystal display market under, the lifting that can take into account usefulness becomes technology place the most competitive in the liquid crystal display industry with reducing cost.Mainly be divided into straight-down negative in the middle of the LED TV module backlight and side-light type is backlight, large scale thin type machine designs so that side-light type is backlight mostly at present, but area is more big, and the LGP that uses more is difficult for volume production, price is also more high, and causing more, the cost of the thin type machine of large scale can't reduce.
Therefore, be returned to direct-type backlight, how make its demand that satisfies large scale thin type machine, and can solve the technical problem of large scale thin typeization with lower one-tenth present technique, be one of research and development emphasis of present industry.
And during the light emitting diode bright dipping of direct-type backlight in the past because light emitting diode contain fluorescent material in the corresponding optical element that arranges, and can produce yellow dizzy phenomenon, make that the visual effect of large scale thin type LED TV is not good, can't meet the need of market.
Summary of the invention
The purpose of this utility model is to provide a kind of optical element that reduces yellow dizzy phenomenon.
The utility model can reduce the optical element of yellow dizzy phenomenon, be applicable to that corresponding the installation arranges a light emitting diode, this optical element that can reduce yellow dizzy phenomenon comprises an incidence surface and a bright dipping curved surface, this incidence surface comprises a par and an alcove, this alcove is positioned at the central authorities of this par, this light emitting diode arranges should alcove installing, and the medial surface of this alcove is roughened surface, this bright dipping curved surface and the opposing setting of this incidence surface and be arc-shaped surface.
The optical element that reduces yellow dizzy phenomenon described in the utility model, this alcove near the roughening degree of this par greater than the roughening degree near the top.
The optical element that reduces yellow dizzy phenomenon described in the utility model, this alcove is roughening near this par, and this alcove is smooth surface near the top.
The optical element that reduces yellow dizzy phenomenon described in the utility model, the roughened surface of the medial surface of this alcove is atomization surface.
The optical element that reduces yellow dizzy phenomenon described in the utility model, the roughened surface of the medial surface of this alcove is the micro-structural roughened surface.
The optical element that reduces yellow dizzy phenomenon described in the utility model, this bright dipping curved surface comprise a recess that is formed at central authorities and caves in towards this incidence surface, reach one around the annular protrusion around this recess.
The beneficial effects of the utility model are: the inner surface by this alcove forms roughened surface, therefore can improve the bright dipping optical characteristics, the dizzy phenomenon of Huang is originally lowered, really reach the purpose of improving the bright dipping optical characteristics, and the optical element that makes the utility model can reduce yellow dizzy phenomenon can more preferably be applied in large scale thin type LED TV.
Description of drawings
Fig. 1 is a stereogram, illustrates that the utility model can reduce by first preferred embodiment of the optical element of yellow dizzy phenomenon;
Fig. 2 is a cutaway view, and an incidence surface and bright dipping curved surface of this first preferred embodiment is described, the medial surface of this alcove is roughened surface;
Fig. 3 is a cutaway view, illustrates that this alcove of second preferred embodiment that the utility model can reduce the optical element of yellow dizzy phenomenon is roughening near this par, and this alcove is smooth surface near the top;
Fig. 4 is a cutaway view, illustrates that this alcove roughened surface of the 3rd preferred embodiment that the utility model can reduce the optical element of yellow dizzy phenomenon is the micro-structural roughened surface.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Consult Fig. 1 and Fig. 2, first preferred embodiment that the utility model can reduce the optical element 1 of yellow dizzy phenomenon is applicable to that a corresponding light emitting diode 2 installations arrange, this optical element 1 that can reduce yellow dizzy phenomenon comprises an incidence surface 11, and a bright dipping curved surface 12.
This incidence surface 11 comprises a par 111 and an alcove 112, this alcove 112 is positioned at the central authorities of this par 111,2 pairs of this light emitting diodes should be installed setting by alcove 112, the medial surface of this alcove 112 is roughened surface, therefore, the light that this light emitting diode 2 sends is after the process medial surface of these alcove 112 roughenings, and it is more even that the optical characteristics of bright dipping will become, and effectively improves yellow dizzy phenomenon.
What illustrate further is that in this first preferred embodiment, the roughened surface of the medial surface of this alcove 112 is atomization surface 113.
Therefore, bright dipping in the past has yellow dizzy phenomenon because of the relation of fluorescent material, and can make that the visual effect of large scale thin type LED TV is not good, can't meet the need of market, pass through again after the improvement of the present utility model, can improve the visual effect of large scale thin type LED TV really.
This alcove 112 near the roughening degree of this par 111 greater than the roughening degree near the top.Focusing on of previous designs, because when the lighting angle of this light emitting diode 2 is more big, yellow dizzy phenomenon is more serious, therefore, the utility model is strengthened this alcove 112 near the roughening degree of par 111, is subjected to not good influence to avoid this light emitting diode 2 by the optical characteristics of the bright dipping on these alcove 112 tops.
This bright dipping curved surface 12 is with these incidence surface 11 opposing settings and generally be arc-shaped surface, and this bright dipping curved surface 12 comprises a recess 121 that is formed at central authorities and caves in towards this incidence surface 11, reaches one around the annular protrusion 122 around this recess 121.
In second preferred embodiment of the present utility model, cooperate and consult Fig. 3, this alcove 112 is roughening near this par 111, roughened surface is atomization surface 113, this alcove 112 is smooth surface near the top, in order to keep this light emitting diode 2 good by the optical characteristics of the bright dipping on these alcove 112 tops.
In the 3rd preferred embodiment of the present utility model, cooperate and consult Fig. 4, this alcove 112 is roughening near this par 111, and this alcove 112 is smooth surface near the top, and roughened surface is micro-structural roughened surface 114.
In sum, the effect that the utility model can reduce the optical element 1 of yellow dizzy phenomenon is to form roughened surface by the inner surface of this alcove 112, therefore can improve the bright dipping optical characteristics, the dizzy phenomenon of Huang is originally lowered, really reach the purpose of improving the bright dipping optical characteristics, and the optical element 1 that makes the utility model can reduce yellow dizzy phenomenon can more preferably be applied in large scale thin type LED TV, so can reach the purpose of the utility model really.
Claims (6)
1. the optical element that can reduce yellow dizzy phenomenon is applicable to that corresponding the installation arranges a light emitting diode, it is characterized in that this optical element that can reduce yellow dizzy phenomenon comprises:
An incidence surface, this incidence surface comprise a par and an alcove, and this alcove is positioned at the central authorities of this par, and this light emitting diode is to installing setting by alcove, and the medial surface of this alcove is roughened surface; And
A bright dipping curved surface, this bright dipping curved surface and the opposing setting of this incidence surface and be arc-shaped surface.
2. the optical element that reduces yellow dizzy phenomenon as claimed in claim 1 is characterized in that: this alcove near the roughening degree of this par greater than the roughening degree near the top.
3. the optical element that reduces yellow dizzy phenomenon as claimed in claim 1, it is characterized in that: this alcove is roughening near this par, and this alcove is smooth surface near the top.
4. the optical element that reduces yellow dizzy phenomenon as claimed in claim 1, it is characterized in that: the roughened surface of the medial surface of this alcove is atomization surface.
5. as claim 1 or the 3 described optical elements that reduce yellow dizzy phenomenon, it is characterized in that: the roughened surface of the medial surface of this alcove is the micro-structural roughened surface.
6. the optical element that reduces yellow dizzy phenomenon as claimed in claim 1 is characterized in that: this bright dipping curved surface comprises that one is formed at central authorities and towards the recess of this incidence surface depression, and one around the annular protrusion around this recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320195468 CN203215565U (en) | 2013-04-17 | 2013-04-17 | Optical element capable of reducing yellow halo phenomenon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320195468 CN203215565U (en) | 2013-04-17 | 2013-04-17 | Optical element capable of reducing yellow halo phenomenon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203215565U true CN203215565U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320195468 Expired - Fee Related CN203215565U (en) | 2013-04-17 | 2013-04-17 | Optical element capable of reducing yellow halo phenomenon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203215565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110648A (en) * | 2013-04-17 | 2014-10-22 | 坦德科技股份有限公司 | Dim light reducible optical element |
-
2013
- 2013-04-17 CN CN 201320195468 patent/CN203215565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110648A (en) * | 2013-04-17 | 2014-10-22 | 坦德科技股份有限公司 | Dim light reducible optical element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20150417 |
|
| EXPY | Termination of patent right or utility model |