CN201242087Y

CN201242087Y - Wide view angle LED lamp lens

Info

Publication number: CN201242087Y
Application number: CNU2008201249558U
Authority: CN
Inventors: 吴峰
Original assignee: Shenzhen Spark Optoelectronics S & T Co Ltd Fuyong Branch
Current assignee: Shenzhen Spark Optoelectronics S & T Co Ltd Fuyong Branch
Priority date: 2008-07-29
Filing date: 2008-07-29
Publication date: 2009-05-20
Anticipated expiration: 2018-07-29

Abstract

The utility model relates to a wide-angle LED lamp lens, which comprises a lens main body, wherein the improvement is that a hollow part which is used to install an LED in a first side surface is arranged on the first side surface of the lens, the hollow wall surface forms an incidence surface, a pillow-shaped emergent surface is arranged on the upper portion of the hollow incidence surface, light gathering reflecting wings which are used to reflect the light are arranged on two ends of a second side surface of the lens, compared with a common LED lamp lens, the LED lamp lens has the beneficial effects that the lens main body comprises the incidence surface and the emergent surface, the light gathering reflecting wings are arranged on two ends of the lens main body, the cross sections of the light gathering reflecting wings are in reversed V shapes and form a bat shape with the cross section of the lens main body, the structure guarantees good integral structure firmness, the light spot which passes through the lens forms a non-symmetrical bat wing shape, and the luminous angle reaches 140 to 170 degrees.

Description

Wide visual angle LED lamp lens

[technical field]

The utility model relates to the lens on a kind of LED of being used for lamp, refers in particular to a kind of LED lamp lens of wide visual angle.

[background technology]

Along with the progress in epoch and the maturation of technology, the white light LEDs luminous tube is with its energy-efficient favor that is subjected to market all the more.Though yet the existing high light large power product of LED luminous tube occurs at present, but the monomer whose luminosity is still limited, can't directly apply to illumination, thereby common way all is concentrated certain zone is shone of mode of lining up array satisfies lighting requirement, so in order better to improve the light-emitting zone and the projected area of each monomer LED luminous tube in the array, its front end all is provided with the LED light special lens usually.Yet existing LED lamp lens are because design defect, though the LED lamp increases through its projection back light concentration degree, and is generally less owing to its lighting angle, cause the illumination of the light beam that the array LED lamp finally projects too concentrated, problems such as effective area is little, and hot spot is also inhomogeneous.

[summary of the invention]

The purpose of this utility model is to have overcome above-mentioned defective, provides a kind of lighting angle big, wide angle of visibility, and hot spot becomes the wing optical lens that is used for the LED lamp of asymmetric bat.

The purpose of this utility model is achieved in that a kind of wide visual angle LED lamp lens, it comprises a lens body, its improvements are: first side of described lens offers and is used to install the depression of LED in it, the depression wall constitutes the plane of incidence, is provided with a pincushion exit facet in depression plane of incidence top; The two ends, second side of lens are provided with the optically focused reflection wing that is used for the light reflection;

The middle part of institute's pincushion exit facet becomes the M font a little less than two ends;

The depression of the described plane of incidence is the semicircle sphere;

The cross section of described lens second side becomes the bat shape;

The plane of incidence and the exit facet of described lens are made by transparent material, and transparent material is PMMA.

Than common LED lamp lens, the beneficial effects of the utility model are that lens body comprises a plane of incidence and exit facet, and be provided with the optically focused reflection wing in the lens body two ends, optically focused reflection wing section becomes inverted V-shaped, it becomes the bat shape with the cross section of lens body, this kind structure has not only guaranteed whole good sound construction, and becomes asymmetric bat wing through the hot spot behind the lens, and its lighting angle reaches the 140-170 degree.

[description of drawings]

Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Fig. 3 is Fig. 2 corresponding A-A cutaway view.

Fig. 4 is the corresponding C-C cutaway view of Fig. 2.

Fig. 5 is the utility model practical application schematic diagram.

Fig. 6 is the corresponding cutaway view of Fig. 5.

[specific embodiment]

Below in conjunction with accompanying drawing the utility model specific embodiment is described in detail.

As Fig. 1,2, a kind of wide visual angle of the utility model LED lamp lens are formed by the one injection moulding, and it comprises lens body 1, are provided with the optically focused reflection wing 2 that is used for the light reflection in lens body 1 two ends.Shown in first lateral plan of lens body among Fig. 31, its bottom, middle part offers one and is used to install the depression 101 of LED in it, 101 one-tenth semicircle spheries cave in, the depression wall constitutes the plane of incidence 102, what the plane of incidence 102 upper ends were close to is that a surface becomes pincushion exit facet 103, the middle part of exit facet 103 is a little less than two ends, become the M font, can change the LED lamp that is installed in the depression 101 by the curvature of adjusting M font exit facet 103 middle parts and send the aggregation extent of light, thereby form a sizeable hot spot.The plane of incidence 102 of described lens body 1 and exit facet 103 are made by transparent material, and transparent material is PC/PMMA.

Participate in lens second side shown in Figure 4, the two ends that are positioned at lens body 1 are provided with the optically focused reflection wing 2 that is used for the light reflection, the optically focused reflection wing 2 cross sections become inverted V-shaped, the plane of incidence 102 in itself and the lens body 1, the cross section of exit facet 103 becomes the bat shape, this kind structure has guaranteed not only that the optically focused reflection wing 2 can be good will from lens body 1 outgoing plane 103 outgoing light reflect, thereby the luminous angle adjustment that realization emits beam to the LED lamp, enlarged the lighting angle of original LED lamp, make it can reach 140-170 degree, its overall structure is firmly stable, can bear than big stress and not produce deformation.

As Fig. 5, Fig. 6, structural representation during for the practical application of these lens, some lens are arranged into arranged in matrix on a plane, because the utility model employing is the optically focused reflection wing 2, only need be arranged at each lens both sides, so the vertical interval of adjacent lens is from less, can effectively improve the density that is provided with of LED lamp, thereby on the single led lamp lighting angle of increase basis, also improve the quantity in unit are LED lamp source, thereby satisfy actual needs.

It is to be noted; of the present utility modelly be not limited to above-mentioned embodiment; for example, any simple modification, equivalent variations and modification that any those skilled in the art do the foregoing description in based on technical solutions of the utility model all belong in the protection domain of the present utility model.

Claims

1, a kind of wide visual angle LED lamp lens, it comprises a lens body, it is characterized in that: first side of described lens offers and is used to install the depression of LED in it, and the depression wall constitutes the plane of incidence, is provided with a pincushion exit facet in depression plane of incidence top; The two ends, second side of lens are provided with the optically focused reflection wing that is used for the light reflection.

2, wide visual angle as claimed in claim 1 LED lamp lens is characterized in that: the middle part of institute's pincushion exit facet becomes the M font a little less than two ends.

3, wide visual angle as claimed in claim 1 LED lamp lens, it is characterized in that: the depression of the described plane of incidence is the semicircle sphere.

4, wide visual angle as claimed in claim 1 LED lamp lens is characterized in that: the cross section of described lens second side becomes the bat shape.

5, wide visual angle as claimed in claim 1 LED lamp lens, it is characterized in that: the plane of incidence and the exit facet of described lens are made by transparent material, and transparent material is PMMA.