CN206469104U

CN206469104U - Many curved surface LED lens and LED lens groups

Info

Publication number: CN206469104U
Application number: CN201621456367.5U
Authority: CN
Inventors: 廖良斌; 卓元全
Original assignee: XIAMEN GREENER OPTOELECTRONICS CO Ltd
Current assignee: XIAMEN GREENER OPTOELECTRONICS CO Ltd
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2017-09-05
Anticipated expiration: 2026-12-28

Abstract

The utility model discloses a kind of many curved surface LED lens and LED lens groups, many curved surface LED lens, lightening hole including the formation of the plane of incidence, reflecting surface, exit facet and the plane of incidence and the refractive medium between the plane of incidence, reflecting surface, exit facet, wherein described exit facet includes in smoothing junction with the arc connection curved surface of depression between the arc smooth surface of multiple protrusions, two adjacent arc smooth surfaces；The exit facet of many curved surface LED lens is made up of the arc smooth surface of multiple protrusions, LED uniform-illumination can be caused, dazzle is small, the effective rate of utilization of LED/light source is greatly improved, and exit facet, the outer surface smoother transition of i.e. many curved surface LED lens, it is not easy to deposit dust or spot, is also very easy to cleaning；The LED lens groups include several above-mentioned many curved surface LED lens, are easily worked shaping, and lampshade can be saved when being used with combined lamps, reduce light loss, improve light extraction efficiency.

Description

Many curved surface LED lens and LED lens groups

Technical field

The utility model is related to field of LED illumination, particularly relates to a kind of many curved surface LED lens and LED lens groups.

Background technology

Traditional LED lens, are usually to enter in the secondary conical surface 2 ' such as parabola, ellipsoid as shown in Figure 1 or 2 Row reflection plus the optical design of lens arrangement, to reach desired light distribution.But using only above-mentioned ruled surface often not The luminous intensity distribution design that can be optimal, can typically form the larger circular light spot of area, while there may be strong dazzle.

In view of this, the design people designed for above-mentioned LED lens arrangements do not attain improve caused many missings and Inconvenience, and deeply conceive, and actively research improvement has a fling at and develops and design the utility model.

Utility model content

The purpose of this utility model is a kind of many curved surface LED lens of offer and LED lens groups, and its LED applied is shone Degree is uniform, dazzle is small, light source utilization rate is high.

In order to reach above-mentioned purpose, solution of the present utility model is：

A kind of many curved surface LED lens, including the plane of incidence, reflecting surface, exit facet and the plane of incidence formation lightening hole and position Refractive medium between the plane of incidence, reflecting surface, exit facet, wherein the arc that the exit facet includes multiple protrusions is smoothly bent It is in smoothing junction with the arc connection curved surface of depression between face, two adjacent arc smooth surfaces.

The plane of incidence is rule or irregular shape.

The refractive medium is PMMA materials, PC materials or glass material.

A kind of LED lens groups, it includes several above-mentioned many curved surface LED lens.

Many curved surface LED lens are connected provided with connection edge, each many curved surface LED lens by connecting edge.

After said structure, the exit facet of many curved surface LED lens of the present utility model is smooth by the arc of multiple protrusions Curved surface is constituted, and can cause LED uniform-illumination, dazzle is small, and the light of light source is substantially the place for projecting and needing to illuminate, Substantially increase the effective rate of utilization of light source luminescent.And exit facet, i.e., the outer surface smoother transition of many curved surface LED lens, no Easily deposition dust or spot, are also very easy to cleaning；And using the LED lens groups of multiple many curved surface LED lens compositions, it is easy to Machine-shaping, can save lampshade when being used with combined lamps, reduce light loss, improve light extraction efficiency.

Brief description of the drawings

Fig. 1 is the top view of existing LED lens arrangements；

Fig. 2 is Fig. 1 a-a sectional views；

Fig. 3 is the top view of many curved surface LED lens of the utility model；

Fig. 4 is Fig. 3 b-b sectional views；

Fig. 5 is the stereogram of many curved surface LED lens of the utility model；

Fig. 6 is the index path of many curved surface LED lens of the utility model；

Fig. 7 is the hot spot schematic diagram of many curved surface LED lens of the utility model；

Fig. 8 is the polar coordinates solid of light distribution of many curved surface LED lens of the utility model；

Fig. 9 is the rectangular co-ordinate curve of light distribution figure of many curved surface LED lens of the utility model；

Figure 10 is the stereogram of many curved surface LED lens groups of the utility model（Front）；

Figure 11 is the stereogram of many curved surface LED lens groups of the utility model（The back side）.

Embodiment

In order to which the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment Row is elaborated.

Such as Fig. 3 discloses many curved surface LED lens A of the utility model to Fig. 5, and it includes the plane of incidence 1, exit facet 2, reflection Face 3, lightening hole 4, refractive medium 5；

The wherein described plane of incidence 1 is used to receive the light that LED/light source 6 is sent, and may be designed as rule or irregular shape, right The light of LED/light source 6 is controlled, and control light enters the angle of refractive medium 5, further, the middle shape of the plane of incidence 1 Into lightening hole 4 for installation LED/light source 6.

It is refractive medium 5 between the plane of incidence 1 and exit facet 2 and reflecting surface 3, the refractive medium 5 can be PMMA materials, PC materials or glass material.

Key of the present utility model is：

The exit facet 2 include between the arc smooth surface 21 of multiple protrusions, two adjacent arc smooth surfaces 21 with The connection curved surface 22 of depression is connected smoothly so that exit facet 2 is difficult dust stratification and cleaning is convenient；The arc smooth surface 21 and arc connection curved surface 11 light is played regulatory role, be designed by the radian size to the two, institute can be controlled Need light angle scope.

Coordinate Fig. 6, when many curved surface LED lens A of the utility model are implemented, light is sent from LED/light source 6, is entered through the plane of incidence 1 Enter in refractive medium 5, then by exit facet 2 and/or reflecting surface 3 effect, finally projected from exit facet 2；Such as incident light Line a enters refractive medium 5 from the plane of incidence 1, and refraction then occurs on exit facet 2 and reflects, is divided into first refractive light b and the One reflection light c, then the first reflection light c the second reflection light d is reflected to form on reflecting surface 3, the second reflection light d is again Reflected away from exit facet 2 and form the second refracted light e.The light of light source is substantially the place for projecting and needing to illuminate, Direction of only few light along parallel reflective faces 3 or with reflecting surface into the orientation outgoing of low-angle, greatly reduce dizzy Light, improves the utilization rate of light.

Coordinate Fig. 7, it can be seen that the distribution of hot spot 7 of the light formation of outgoing is presented intimate bat type, the distribution of hot spot 7 compared with For symmetrically and evenly；Again from Fig. 8 and Fig. 9, the light illumination uniformity that can be apparent from outgoing is good.

The invention also discloses a kind of LED lens group B being made up of above-mentioned many curved surface LED lens A, it includes some Individual many curved surface LED lens A；Coordinate provided with connection edge 8 at Figure 10 and 11, the lateral edges of many curved surface LED lens A, each is more Curved surface LED lens A is connected and one cover body of formation by connecting edge 8, and whole LED lens groups B is easily processed into type, with combined lamps Lampshade can be saved when using, light loss is reduced, the utilization rate of light is improved.

To sum up, many curved surface LED lens A of the present utility model exit facet 2 by multiple protrusions the structure of arc smooth surface 21 Into, LED uniform-illumination can make it that, dazzle is small, the light of light source be substantially projects need illuminate place, carry significantly The high effective rate of utilization of light source luminescent.And exit facet 2, i.e., many curved surface LED lens A outer surface smoother transition, it is not easy to Dust or spot are deposited, cleaning is also very easy to；And using the LED lens groups B of multiple many curved surface LED lens A compositions, it is easy to plus Work is molded, and lampshade can be saved when being used with combined lamps, reduces light loss, improves light extraction efficiency.

Above-described embodiment and schema and non-limiting product form of the present utility model and style, any art Appropriate change or modification that those of ordinary skill is done to it, all should be regarded as not departing from patent category of the present utility model.

Claims

1. a kind of many curved surface LED lens, including the plane of incidence, reflecting surface, exit facet and the lightening hole of plane of incidence formation and it is located at Refractive medium between the plane of incidence, reflecting surface, exit facet, it is characterised in that：The arc that the exit facet includes multiple protrusions is put down It is in smoothing junction with the arc connection curved surface of depression between sliding curved surface, two adjacent arc smooth surfaces.

2. many curved surface LED lens as claimed in claim 1, it is characterised in that：The plane of incidence is rule or irregular shape.

3. many curved surface LED lens as claimed in claim 1, it is characterised in that：The refractive medium is PMMA materials, PC materials Or glass material.

4. a kind of LED lens groups, it is characterised in that：Including many curved surfaces described in several any one of the claims 1 to 3 LED lens.

5. LED lens groups as claimed in claim 4, it is characterised in that：Many curved surface LED lens are provided with connection edge, each Many curved surface LED lens are connected by connecting edge.