A kind of wide-angle backlight lens
Technical field
The utility model is related to lighting fitting field, more particularly to a kind of wide-angle backlight lens.
Background technology
LCD TV is generally using light emitting source of the LED backlight as liquid crystal panel rear.LED backlight is generally by LED
Lamp and backlight lens combination are formed, and backlight lens can irradiate the uniform light of LED, liquid crystal panel is realized uniform brightness
Degree, further improves the image quality of LCD TV.
Backlight lens lighting angle of the prior art is small, irradiate uneven, reduces the light intensity of LED.Liquid crystal
Television manufacturers are in order to improve the light intensity of LED, generally using the method for increase LED quantity.But this method is not only
Production cost is improved, the power consumption of LCD TV is also increased.
The content of the invention
The technical problems to be solved in the utility model is that there is provided a kind of lighting angle according to above-mentioned the deficiencies in the prior art
Greatly, uniform backlight lens, production cost and power consumption to reduce LCD TV are irradiated.
The technical solution of the utility model is as follows:
A kind of wide-angle backlight lens, including lenticular body, the lenticular body upper strata are light-emitting seat, and lower floor is mounting seat;It is described
Light-emitting seat upper surface is reflective top surface, and the light-emitting seat side is exiting surface;The mounting seat bottom surface is reflective bottom surface, described anti-
Light bottom surface is provided centrally with incidence hole, and the incidence hole is provided with incidence surface;It is characterized in that:The center of the reflective top surface
It is provided with reflective salient point protruding upward, the top center of the incidence hole, which is provided with, downwardly projecting enters light salient point.
Further, the reflective top surface is the arc circular conical surface caved in downwards.
Further, the exiting surface is faced directly by the light extraction connected from top to bottom, light extraction cambered surface is constituted.
Further, the exiting surface is provided with spark lines.
Further, the incidence surface is made up of the light incident sides of arc and the spire face that enters of arc, it is described enter light salient point
Enter light end face center described in being arranged at.
Further, the reflective bottom surface is provided with Fresnel line ring centered on the incidence hole.
Further, the reflective bottom surface is provided with saw-tooth ring centered on the incidence hole.
Further, the reflective bottom surface is provided with installation suspension column.
Compared with prior art, the utility model has the advantages that:(1)Reflective salient point is provided with, makes hot spot equal
Evenness is higher;It is provided with into light salient point, light is more dissipated, scope is wider;(2)Fresnel line ring and saw-tooth ring are set, had
Effect processing light source veiling glare, makes Integral luminous uniform, hot spot is evenly, more efficient;(3)Lenticular body makes LED irradiation uniform,
And then the LED quantity in LCD TV can be reduced, so as to reduce the production cost and power consumption of LCD TV.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model embodiment.
Fig. 2 is the stereogram of the utility model embodiment(Another angle).
Fig. 3 is the top view of the utility model embodiment.
Fig. 4 is the sectional view at A-A on Fig. 3.
Fig. 5 is the enlarged drawing at M on Fig. 4.
Reference
10th, light-emitting seat, 11, reflective top surface, 12, reflective salient point, 13, light extraction face directly,
14th, light extraction cambered surface;20th, mounting seat, 21, reflective bottom surface, 22, Fresnel line ring,
23rd, saw-tooth ring, 24, install suspension column;30th, incidence hole, 31, enter light salient point,
32nd, light incident sides, 33, enter spire face.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
As Figure 1-5, the embodiment that the utility model is provided, a kind of wide-angle backlight lens, including lenticular body, it is described
Mirror body upper strata is light-emitting seat 10, and lower floor is mounting seat 20;The upper surface of light-emitting seat 10 is reflective top surface 11, the light-emitting seat 10
Side is exiting surface;The bottom surface of mounting seat 20 is reflective bottom surface 21, and the reflective bottom surface 21 is provided centrally with incidence hole 30,
The incidence hole 30 is provided with incidence surface.In the present embodiment, light-emitting seat 10 is truncated cone-shaped, and the mounting seat 20 is square.
The reflective top surface 11 is provided centrally with reflective salient point 12 protruding upward, the top center of the incidence hole 30
It is provided with and downwardly projecting enters light salient point 31.Wherein, the reflective salient point 12 and enter light salient point 31 and be centrally located at same axis
On;The surface of the reflective salient point 12 be arc circular conical surface, it is described enter light salient point 31 surface be curved surface;Reflective salient point 12 it is straight
Footpath enters the diameter of light salient point 31 more than described in.In the present embodiment, reflective salient point 12 makes the hot spot uniformity higher, and entering light salient point 31 makes
Light more dissipates, and scope is wider.
The reflective top surface 11 is the arc circular conical surface caved in downwards.
The exiting surface is faced 13, light extraction cambered surface 14 directly by the light extraction connected from top to bottom and constituted.The exiting surface is provided with
Spark lines.In the present embodiment, spark lines can make hot spot more uniform.
The incidence surface is made up of the light incident sides 32 of arc and the spire face 33 that enters of arc, it is described enter light salient point 31 set
In it is described enter the center of spire face 33.
The reflective bottom surface 21 is provided with Fresnel line ring 22 and saw-tooth ring 23 centered on the incidence hole 30.Wherein,
Fresnel line ring 22 is arranged in saw-tooth ring 23.In the present embodiment, Fresnel line ring 22 and saw-tooth ring 23 can effectively handle light source
Veiling glare, makes Integral luminous uniform, hot spot is evenly, more efficient.
The reflective bottom surface 21 is provided with installation suspension column 24.In the present embodiment, suspension column 24 is installed four and is angularly distributed, thoroughly
Mirror body carries out installation fixation by installing suspension column 24.
In the present embodiment, LED is installed in incidence hole 30, and light is by incidence hole 30 and enters light salient point 31 and enters lens
Body;A part of light directly scatters lenticular body from exiting surface, and another part light passes through in reflective top surface 11, reflective bottom surface 21
The reflection of any one or both scatters lenticular body from exiting surface again.
Lenticular body of the present utility model makes LED irradiation uniform, and then can reduce the LED quantity in LCD TV,
So as to reduce the production cost and power consumption of LCD TV.
Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly
Interest field, therefore equivalent variations made according to the utility model claim still belong to the scope that the utility model is covered.