Wall washing lamp lens, light-emitting module provided with wall washing lamp lens and wall washing lamp

Abstract

The invention discloses a wall washing lamp lens which comprises a lens body and a lens base supporting the lens body. The lens body comprises an inner surface receiving light emitted from a light source and an outer surface emitting light. The outer surface comprises a first curved face, a second curved face and a third curved face, wherein the first curved face is used for totally reflecting light to a wall washing face, the second curved face is used for refracting the light to the wall washing face, and the third curved face is used for totally reflecting the light to the wall washing face. The first curved face and the second curved face are both formed in the mode that a continuous curve rotates around the Y-axis by 180 degrees. The third curved face is formed in the mode that a continuous curve rotates around the Y-axis by -180 degrees. The invention provides the wall washing lamp lens, a light-emitting module provided with the wall washing lamp lens and a wall washing lamp. Due to combined action of the three curved faces, stray light can be reduced, and luminous efficacy is improved. The whole lens does not need to deflect to achieve polarization and uniform distribution of the illumination of the wall washing face, and the situation that the portion, near the lamp, of the wall washing face and the portion, far away from the lamp, of the wall washing face sharply attenuate is avoided.

Description

technical field [0001] The invention relates to a wall washer lens, a light-emitting module with the wall washer lens, and a wall washer. Background technique [0002] As the name suggests, the LED wall washer is that the light of the lamp shines on the wall like a water curtain and evenly passes over the wall from top to bottom. However, in practical applications, it can achieve long-distance and high uniformity lighting effects under low power conditions. It is very difficult to do. This is mainly due to the luminous characteristics of the LED light source itself and the limitation of the installation location, resulting in the actual lighting effect of the wall washer is rapid light decay, uneven illumination of the light spot on the wall washer, and low light efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a wall washer lens, a light-emitting module with the wall washer lens, and a wall washer, which can reduce light l...

AI Technical Summary

Problems solved by technology

[0002] As the name suggests, the LED wall washer is that the light of the lamp shines on the wall like a water curtain and evenly passes over the wall from top to bottom. However, in practical applications, it can achieve long-distance and high uniformity lighting effects under low power conditions. is ve...

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