Astigmatism-free directional off-axis waterproof wall-washer LED optical lens

Abstract

The invention discloses an astigmatism-free directional off-axis waterproof wall-washer LED optical lens. The astigmatism-free directional off-axis waterproof wall-washer LED optical lens is characterized in that the astigmatism-free directional off-axis waterproof wall-washer LED optical lens comprises a lens body shaped like a reversely-buckled cup and a waterproof structure; the outer side faceof the lends body is annularly surrounded by the waterproof structure; the inner side face of the lens body comprises a fist bevel, a second bevel, a third bevel and a fourth bevel which are sequentially connected; the fourth bevel is close to the wall face, and light rays penetrating through the first bevel from the bottom of the lens body is perpendicular to the top face of the lens body to beemitted in a collimation mode; and the off-axis angle of light rays penetrating through the fourth bevel, the third bevel and the second bevel sequentially from the bottom of the lens body is decreased gradually from the bottom of the wall face. According to the astigmatism-free directional off-axis waterproof wall-washer LED optical lens, it is ensured that the light rays can shine higher, thus the shined wall face is higher and larger in area, discomfort glare seen by people is reduced, the utilization rate of the light rays is decreased, and the wall face is shined more evenly.

Description

technical field [0001] The invention relates to the technical field of lenses, in particular to an astigmatism-free directional off-axis waterproof wall-washing LED optical lens. Background technique [0002] LED wall washer is mainly used for architectural decorative lighting, and it is also used to outline the outline of large buildings. Because LED has the characteristics of energy saving, high luminous efficiency, rich colors, and long life, the wall washer of other light sources was gradually replaced by LED wall washer in 2013. [0003] But the existing LED wall washer has some disadvantages, figure 1 Shown is a diagram of the state of use of LED wall washer 100' in the prior art, as figure 1 As shown, the area of ​​the LED wall washer 200' away from the irradiated wall has more stray light and main light, the light utilization rate is not high, and it is easy to produce dazzling and dazzling effects, and the effect of the LED wall washer is not good. [0004] To th...

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Problems solved by technology

[0003] But the existing LED wall washer has some disadvantages, figure 1 Shown is a diagram of the state of use of LED wall washer 100' in the prior art, as figure 1 As shown, the area of ​​the LED wall washer 200' away from the irradiated wall has a lot of stray light and main light, the light utilization rate is not high, and it is easy to produce dazzling and dazzling effects, and the effect of the LED wall washer is not good.

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