CN203615247U

CN203615247U - Polarized lens of high-power LED street lamp

Info

Publication number: CN203615247U
Application number: CN201320810746.XU
Authority: CN
Inventors: 黄伟雄
Original assignee: DONGGUAN XINGHUI VACUUM COATING PLASTIC MANUFACTURING Co Ltd
Current assignee: DONGGUAN XINGHUI VACUUM COATING PLASTIC MANUFACTURING Co Ltd
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-05-28
Anticipated expiration: 2023-12-11

Abstract

The utility model relates to the technical field of lamps, in particular to a polarized lens of a high-power LED street lamp. The polarized lens of the high-power LED street lamp comprises a lens body with a bottom, the lens body comprises a light incidence surface and a light emitting surface, the bottom of the lens body hollows inwardly to form a pit for holding LED lamp beads, the wall surface of the pit is a semi-elliptic curved surface which is formed into the light incidence surface; the outer surfaces of the lens body except the bottom are free curved surfaces and are formed into light emitting surfaces. When people use the polarized lens of the high-power LED street lamp, the light spots are uniform, the light intensity transition is soft, people feel the vision comfortable, the light spot edges are transited softly without stray lights and abnormal lights, the color temperature deviation is less than 0.5%, the color temperature of the LED lamp beads is shown completely, and the polarized lens of the high-power LED street lamp is well suited for road illumination, is simple in structure, is reasonable in design, and is strong in practicability.

Description

A kind of high-power LED street lamp spreadlight lens

Technical field

The utility model relates to technical field of lamps, relates in particular to a kind of high-power LED street lamp spreadlight lens.

Background technology

Street lamp is the important component part of road lighting.Traditional street lamp adopts high-pressure mercury lamp, there is the shortcoming that optical efficiency is low, energy consumption is large, LED street lamp as a kind of new and effective, energy-conservation, the life-span is long, colour rendering index is high, the street lamp of environmental protection is widely used in city illumination engineering, in the practical application of LED street lamp, people are in order to obtain suitable distribution of light and illumination brightness, lens often need to be installed on LED lamp pearl again, and there is the shortcoming that light transmission efficiency is low, hot spot is inhomogeneous, light intensity transition is not soft in LED street lamp lens of the prior art.

Summary of the invention

The purpose of this utility model be for the deficiencies in the prior art provide that a kind of light transmittance is high, hot spot evenly, the high-power LED street lamp spreadlight lens of soft, the euphorosia of light intensity transition.

The utility model is achieved through the following technical solutions.

A kind of high-power LED street lamp spreadlight lens, comprise the lens body that comprises a bottom surface, described lens body is provided with incidence surface and exiting surface, the bottom surface of described lens body caves inward and forms a pit for mounted LED lamp bulb, the hole wall of described pit is half elliptic curved surface, forms described incidence surface; The outer surface except bottom surface portions of described lens body is free form surface, forms described exiting surface.

Wherein, described exiting surface comprises main exiting surface, left exiting surface, front exiting surface, right exiting surface and rear exiting surface, and described main exiting surface, left exiting surface, front exiting surface, right exiting surface and rear exiting surface are connected smoothly and form described exiting surface.

Wherein, described pit is eccentric state near rear exiting surface and is arranged in lens body, and described eccentric angle is 20～35 degree.

Wherein, the light distribution angle that described left exiting surface and right exiting surface form is 135 degree, and the light distribution angle that described front exiting surface and rear exiting surface form is 60 degree.

Wherein, described this main body of lens is provided with the first installation foot, the second installation foot, and described the first installation foot is arranged at left exiting surface one side, and described the second installation foot is arranged at right exiting surface one side.

Wherein, the bottom surface of described lens body is also provided with detent, and described detent is arranged at the periphery of described pit.

Compared with prior art, the utlity model has following beneficial effect: high-power LED street lamp spreadlight lens of the present utility model hot spot in the process using is even, light intensity transition is soft, euphorosia, hot spot edge transition is soft, without veiling glare, without abnormal coloured light, colour temperature deviation < 0.5%, colour temperature that can loyal reaction LED lamp pearl is applicable to road lighting very much; Simple in structure, reasonable in design, practical.

Accompanying drawing explanation

Fig. 1 is the structural representation of high-power LED street lamp spreadlight lens of the present utility model.

Fig. 2 is the top view of high-power LED street lamp spreadlight lens of the present utility model.

Fig. 3 is the cross-sectional view of Fig. 2 along A-A line.

Fig. 4 is the cross-sectional view of Fig. 2 along B-B line.

Fig. 5 is the pitching view of high-power LED street lamp spreadlight lens of the present utility model.

Reference numeral comprises:

1-lens body; 11-bottom surface; 12-detent; 2-incidence surface; 3-exiting surface; 31-main exiting surface; 32-left exiting surface; 33-front exiting surface; 34-right exiting surface; 35-rear exiting surface; 4-pit; The 51-the first installation foot; The 52-the second installation foot.

The specific embodiment

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

As shown in Figures 1 to 5, a kind of high-power LED street lamp spreadlight lens, comprise the lens body 1 that comprises a bottom surface 11, described lens body 1 is provided with incidence surface 2 and exiting surface 3, the bottom surface 11 of described lens body 1 caves inward and forms a pit 4 for mounted LED lamp bulb, the hole wall of described pit 4 is half elliptic curved surface, forms described incidence surface 2; The outer surface except 11 parts of bottom surface of described lens body 1 is free form surface, forms described exiting surface 3.

High-power LED street lamp spreadlight lens of the present utility model hot spot in the process using is even, light intensity transition is soft, euphorosia, hot spot edge transition is soft, without veiling glare, without abnormal coloured light, colour temperature deviation < 0.5%, colour temperature that can loyal reaction LED lamp pearl is applicable to road lighting very much; Simple in structure, reasonable in design, practical.

Wherein, described exiting surface 3 comprises main exiting surface 31, left exiting surface 32, front exiting surface 33, right exiting surface 34 and rear exiting surface 35, described main exiting surface 31, left exiting surface 32, front exiting surface 33, right exiting surface 34 and rear exiting surface 35 are connected smoothly and form described exiting surface 3, wherein main exiting surface 31 is positioned at the top of described lens body 1, described left exiting surface 32, front exiting surface 33, right exiting surface 34 and rear exiting surface 35 are between main exiting surface 31 and bottom surface 11, high-power LED street lamp spreadlight lens of the present utility model has larger lighting area, can adopt the injection mo(u)lding of Japanese imported with original packaging optical grade PMMA material, can reach more than 93% light transmittance and no color differnece, bright dipping radiation response is good.

Wherein, described pit 4 is eccentric state near rear exiting surface 35 and is arranged in lens body 1, described eccentric angle is 20～35 degree, can make pole height reduce by 10～25% with respect to traditional LED street lamp, spacing between adjacent two lamp stands increases by 10～25%, thereby reduce the setting of lamp stand and street lamp, reduce the use of electric weight, reduce the illumination cost of street lamp.

Wherein, the light distribution angle that described left exiting surface 32 and right exiting surface 34 form is 135 degree, the light distribution angle that described front exiting surface 33 and rear exiting surface 35 form is 60 degree, the hot spot forming is arc covering of the fan and has larger lighting area with respect to traditional LED street lamp, has greatly improved the illumination efficiency of single street lamp.

Wherein, described lens body 1 is provided with the first installation foot 51, the second installation foot 52, and described the first installation foot 51 is arranged at left exiting surface 32 1 sides, and described the second installation foot 52 is arranged at right exiting surface 34 1 sides, be convenient to high-power LED street lamp spreadlight lens to install fixing, practical.

Preferably, the bottom surface 11 of described lens body 1 is also provided with detent 12, and described detent 12 is arranged at the periphery of described pit 4, in the process using, can accurately locate the installation of lens body 1 by described detent 12.

Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.

Claims

1. a high-power LED street lamp spreadlight lens, comprise the lens body that comprises a bottom surface, described lens body is provided with incidence surface and exiting surface, it is characterized in that, the bottom surface of described lens body caves inward and forms a pit for mounted LED lamp bulb, the hole wall of described pit is half elliptic curved surface, forms described incidence surface; The outer surface except bottom surface portions of described lens body is free form surface, forms described exiting surface.

2. high-power LED street lamp spreadlight lens according to claim 1, it is characterized in that, described exiting surface comprises main exiting surface, left exiting surface, front exiting surface, right exiting surface and rear exiting surface, and described main exiting surface, left exiting surface, front exiting surface, right exiting surface and rear exiting surface are connected smoothly and form described exiting surface.

3. high-power LED street lamp spreadlight lens according to claim 2, is characterized in that, described pit is eccentric state near rear exiting surface and is arranged in lens body, and described eccentric angle is 20～35 degree.

4. high-power LED street lamp spreadlight lens according to claim 2, it is characterized in that, described lens body is provided with the first installation foot, the second installation foot, and described the first installation foot is arranged at left exiting surface one side, and described the second installation foot is arranged at right exiting surface one side.

5. high-power LED street lamp spreadlight lens according to claim 1, is characterized in that, the bottom surface of described lens body is also provided with detent, and described detent is arranged at the periphery of described pit.