CN204962620U - Straight following formula secondary grading lens, backlight unit and TV set - Google Patents
Straight following formula secondary grading lens, backlight unit and TV set Download PDFInfo
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- CN204962620U CN204962620U CN201520620942.XU CN201520620942U CN204962620U CN 204962620 U CN204962620 U CN 204962620U CN 201520620942 U CN201520620942 U CN 201520620942U CN 204962620 U CN204962620 U CN 204962620U
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- straight
- distribution lens
- light
- secondary light
- down negative
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- 230000005142 aphototropism Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model provides a straight following formula secondary grading lens, including lenticular body, unable adjustment base and illuminating source, the lenticular body is cylindric setting, and its top surface is inside sunken plane of reflection, and the bottom surface is the incident surface, and the side is the emitting face, last being equipped with of unable adjustment base is used for fixing the light source fixing base of illuminating source, the lenticular body is fixed in unable adjustment base is last just to be located the illuminating source top, the utility model provides a backlight unit, backlight unit include that parallel arrangement's diffuser plate and bottom plate and a plurality of array are fixed in the straight following formula secondary grading lens on the bottom plate panel between diffuser plate and the bottom plate, the utility model provides a TV set contains foretell backlight unit in. The utility model discloses a straight following formula secondary grading lens have improved the optical uniformity greatly, have avoided phenomenons such as existing dark circle among the backlight unit, liang quan, huangquan, bright spot.
Description
Technical field
The utility model relates to LCD TV backlight technical field, particularly a kind of straight-down negative secondary light-distribution lens, backlight module and television set.
Background technology
Straight-down negative secondary light-distribution lens is a vitals in LCD TV or display, light scattering light source penetrated by straight-down negative secondary light-distribution lens on diffuser plate, to provide uniform backlight.Existing straight-down negative secondary light-distribution lens limit by the diffusion angle of light source and light mixing distance, diffuser plate there will be the phenomenons such as dark circle, Liang Quan, Huang Quan, bright spot, cause overall bright dipping uneven, make the quality of LCD TV or display on the low side, without market competition advantage.
Utility model content
Main purpose of the present utility model is to provide a kind of straight-down negative secondary light-distribution lens, is intended to the uniformity improving bright dipping.
For achieving the above object, the utility model proposes a kind of straight-down negative secondary light-distribution lens, comprise lenticular body, firm banking and illuminating source, described lenticular body is cylindric setting, and its end face is the reflecting surface caved inward, and bottom surface is the plane of incidence, and side is exit facet; Described firm banking is provided with the light source holder for fixing described illuminating source; Described lenticular body to be fixed on described firm banking and to be positioned at above described illuminating source; After the light that described illuminating source sends injects lenticular body, a part of light is directly penetrated by described exit facet, and another part is penetrated by described exit facet after reflective surface again.
Preferably, in above-mentioned a kind of straight-down negative secondary light-distribution lens, described reflecting surface is coniform setting, and described illuminating source is positioned on the axis extended line of described reflecting surface.
Preferably, in above-mentioned a kind of straight-down negative secondary light-distribution lens, described reflecting surface has the reflective fin of some concentric annular, and the center of circle of some described reflective fins is positioned on the axis of described reflecting surface.
Preferably, in above-mentioned a kind of straight-down negative secondary light-distribution lens, described exit facet is arc light filling curved surface near the part of described firm banking.
Preferably, in above-mentioned a kind of straight-down negative secondary light-distribution lens, also comprise some prism circles, described prism circle is arranged on described firm banking bottom surface, and described prism ring is around in described light source holder.
Preferably, in above-mentioned a kind of straight-down negative secondary light-distribution lens, described light source holder is connected with described firm banking by the intermediate incline of indent.
Preferably, in above-mentioned a kind of straight-down negative secondary light-distribution lens, described firm banking bottom surface is also provided with some fixed feet.
The utility model also proposes a kind of backlight module simultaneously, comprise diffuser plate, base plate, and some straight-down negative secondary light-distribution lens as above, described diffuser plate and base plate be arranged in parallel, and described straight-down negative secondary light-distribution lens array is fixed on the floor board between described diffuser plate and base plate.
Preferably, in above-mentioned a kind of backlight module, described base plate is also equipped with one deck reflection diaphragm.
In addition, the utility model also proposes a kind of television set, comprises backlight module as above.
Technical solutions of the utility model arrange refractive body by adopting side on the lens body, the light reflection penetrate illuminating source also goes out through lenticular body refraction, light illuminating source being sent by the multi-angle remission of refractive body can cover larger angle, thus it is little to effectively prevent existing TV light-distribution lens diffusion angle, backlight module is caused to occur dark circle, bright circle, yellow circle, the defect of bright spot.Secondary light-distribution lens structure of the present utility model is simple, easy to process simultaneously, and adopt the backlight module brightness uniformity of the utility model secondary light-distribution lens, power consumption is lower, dependable performance.
Accompanying drawing explanation
Fig. 1 is the utility model secondary light-distribution lens preferred embodiment structural representation;
Fig. 2 is the utility model secondary light-distribution lens preferred embodiment structure sectional view;
Fig. 3 is the utility model secondary light-distribution lens preferred embodiment index path;
Fig. 4 is the utility model secondary light-distribution lens preferred embodiment firm banking structural representation;
Fig. 5 is the utility model backlight module preferred embodiment structural representation;
Fig. 6 is the utility model backlight module preferred embodiment index path.
Drawing reference numeral illustrates:
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Give the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model proposes a kind of straight-down negative secondary light-distribution lens, referring to figs. 1 through Fig. 3, in one embodiment, the utility model comprises lenticular body 1, firm banking 2 and illuminating source (not shown), wherein lenticular body 1 is in cylindric, its end face is the reflecting surface 11 caved inward, and bottom surface is the plane of incidence 12, and side is exit facet 13; Firm banking 2 is also provided with the light source holder 3 for fixing illuminating source, lenticular body 1 to be fixed on firm banking 2 and to be positioned at above illuminating source.
Preferably, see Fig. 1, Fig. 2, the reflecting surface 11 of lenticular body 1 is in coniform setting, and illuminating source is arranged on the axis extended line below reflecting surface 11.
Particularly, see Fig. 3, after the light that illuminating source sends injects lenticular body 1 through light source holder 3 by the plane of incidence 12, a part of light is directly penetrated by exit facet 13, and another part is penetrated by exit facet 13 after reflecting surface 11 reflects again.Pass through technique scheme, light-distribution lens of the present utility model possesses larger diffusion angle, bright dipping is more even, avoids the defect of existing light-distribution lens bright dipping inequality, adopts backlight module of the present utility model to there will not be the phenomenons such as dark circle, Liang Quan, Huang Quan, bright spot.Circular cone reflecting surface has large rounder and more smooth reflection angle compared to the common reflecting surface that caves in, and therefore bright dipping is also more even.
Further, reflecting surface 11 is also provided with the reflective fin (not shown) of some concentric annular, the center of circle of reflective fin is positioned on the axis of reflecting surface 11.By the light diffusion angle that reflective fin increase reflecting surface 11 reflects, thus make the utility model bright dipping more even, reflective fin also can play certain beautifying and decorating effect simultaneously, and the quantity of reflective fin can carry out selecting and adjusting according to actual conditions.
Further, see Fig. 1, Fig. 2, exit facet 13 is arc light filling curved surface 131 near the part of described firm banking 2, the effect of arc light filling curved surface 131 is, the light partially passing through lenticular body 1 lower end is made again to carry out multi-angle refraction, the uniformity of further this straight-down negative of increase secondary light-distribution lens bright dipping, arc light filling curved surface 131 also makes lenticular body 1 surface more round and smooth attractive in appearance simultaneously.The concrete shape of arc light filling curved surface 131 and size can carry out adjusting and selecting according to the practical service environment of light-distribution lens and demand.
Further, see Fig. 2 and Fig. 4, firm banking 2 bottom surface is provided with some prism circles 22 around light source holder 3, light source holder 3 is connected with firm banking 2 by the intermediate incline 21 of indent simultaneously.Prism circle 22 is actual is exactly fin on firm banking 2, and the effect of prism circle 22 and intermediate incline 21 is all to collect veiling glare and compensates for the little dark circle in local of backlight module diffuser plate, makes the bright dipping of straight-down negative secondary light-distribution lens more even.All can the adjusting accordingly according to practical service environment and demand and select of the angle of intermediate incline 21 and the quantity of prism circle 22.
Further, see Fig. 2 and Fig. 4, in a certain or all embodiments of the present utility model, conveniently installation of the present utility model, some fixed feet 23 can also be added on firm banking 2 bottom surface, fixed feet 23 makes more firm the fixing of light-distribution lens, also can increase the heat-sinking capability of light-distribution lens simultaneously to a certain extent, extend the service life of light-distribution lens.
The utility model additionally provides a kind of backlight module simultaneously, see Fig. 5, comprise above-mentioned diffuser plate 5, base plate 6 and some above-mentioned straight-down negative secondary light-distribution lens 4, the concrete structure of this straight-down negative secondary light-distribution lens 4 is with reference to above-described embodiment, because this backlight module have employed whole technical schemes of above-mentioned all embodiments, therefore all beneficial effects that the technical scheme having above-described embodiment is equally brought, this is no longer going to repeat them.
Particularly, see Fig. 6, diffuser plate 5 and base plate 6 be arranged in parallel, and straight-down negative secondary light-distribution lens 4 array is fixed on the floor board between diffuser plate 5 and base plate 6.By this technical scheme, exposing on diffuser plate 5 of the uniform light that straight-down negative secondary light-distribution lens 4 sends, and then provide backlight for TV.
In order to improve brightness and the uniformity of backlight module further, floor board between base plate 6 and diffuser plate 5 can also lay one deck retroreflective sheeting 61, by retroreflective sheeting 61, by straight-down negative secondary light-distribution lens, the light be transmitted on base plate 6 carries out reflecting and feeding back to diffuser plate 5, improve the brightness of backlight module, also effectively reduce probability backlight module occurring the phenomenons such as dark circle, Liang Quan, Huang Quan, bright spot simultaneously, make the quality of backlight module more excellent.
Further, the utility model also proposed a kind of television set, comprises backlight module as above in this television set.
Should be noted that; the technical scheme of each embodiment of the present utility model can be combined with each other; but must be can be embodied as basis with those skilled in the art; when technical scheme combination occur conflicting maybe cannot realize time people should think that the combination of this technical scheme does not exist, also not the utility model require protection domain within.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a straight-down negative secondary light-distribution lens, comprises lenticular body, firm banking and illuminating source, it is characterized in that, described lenticular body is cylindric setting, and its end face is the reflecting surface caved inward, and bottom surface is the plane of incidence, and side is exit facet; Described firm banking is provided with the light source holder for fixing described illuminating source; Described lenticular body to be fixed on described firm banking and to be positioned at above described illuminating source; After the light that described illuminating source sends injects lenticular body, a part of light is directly penetrated by described exit facet, and another part is penetrated by described exit facet after reflective surface again.
2. straight-down negative secondary light-distribution lens as claimed in claim 1, it is characterized in that, described reflecting surface is coniform setting, and described illuminating source is positioned on the axis extended line of described reflecting surface.
3. straight-down negative secondary light-distribution lens as claimed in claim 1, it is characterized in that, described reflecting surface has the reflective fin of some concentric annular, and the center of circle of some described reflective fins is positioned on the axis of described reflecting surface.
4. straight-down negative secondary light-distribution lens according to claim 1, is characterized in that, described exit facet is arc light filling curved surface near the part of described firm banking.
5. straight-down negative secondary light-distribution lens according to claim 1, is characterized in that, also comprises some prism circles, and described prism circle is arranged on described firm banking bottom surface, and described prism ring is around in described light source holder.
6. straight-down negative secondary light-distribution lens according to claim 1, is characterized in that, described light source holder is connected with described firm banking by the intermediate incline of indent.
7. straight-down negative secondary light-distribution lens according to claim 1, is characterized in that, described firm banking bottom surface is also provided with some fixed feet.
8. a backlight module, it is characterized in that, comprise diffuser plate, base plate, and some straight-down negative secondary light-distribution lens as described in any one of claim 1 to 7, described diffuser plate and base plate be arranged in parallel, and described straight-down negative secondary light-distribution lens array is fixed on the floor board between described diffuser plate and base plate.
9. backlight module as claimed in claim 8, is characterized in that, described base plate is also equipped with one deck reflection diaphragm.
10. a television set, is characterized in that, comprises down straight aphototropism mode set as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620942.XU CN204962620U (en) | 2015-08-17 | 2015-08-17 | Straight following formula secondary grading lens, backlight unit and TV set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620942.XU CN204962620U (en) | 2015-08-17 | 2015-08-17 | Straight following formula secondary grading lens, backlight unit and TV set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204962620U true CN204962620U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520620942.XU Expired - Fee Related CN204962620U (en) | 2015-08-17 | 2015-08-17 | Straight following formula secondary grading lens, backlight unit and TV set |
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| CN (1) | CN204962620U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991807A (en) * | 2017-12-07 | 2018-05-04 | 苏州奥浦迪克光电技术有限公司 | The backlight module of backlight module lens and its composition |
| CN108204572A (en) * | 2016-12-28 | 2018-06-26 | 佛山市中山大学研究院 | A kind of micro-structure adding method for changing slim lens angle |
| CN108488692A (en) * | 2018-03-27 | 2018-09-04 | 东莞市定能光电科技有限公司 | A kind of backlight lens for TV |
| CN112445028A (en) * | 2019-08-30 | 2021-03-05 | 莫列斯有限公司 | Reflection diffusion lens and light emitting module comprising same |
-
2015
- 2015-08-17 CN CN201520620942.XU patent/CN204962620U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204572A (en) * | 2016-12-28 | 2018-06-26 | 佛山市中山大学研究院 | A kind of micro-structure adding method for changing slim lens angle |
| CN107991807A (en) * | 2017-12-07 | 2018-05-04 | 苏州奥浦迪克光电技术有限公司 | The backlight module of backlight module lens and its composition |
| CN108488692A (en) * | 2018-03-27 | 2018-09-04 | 东莞市定能光电科技有限公司 | A kind of backlight lens for TV |
| CN112445028A (en) * | 2019-08-30 | 2021-03-05 | 莫列斯有限公司 | Reflection diffusion lens and light emitting module comprising same |
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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: 20160113 |