Original title: What role does the led lens play in the LED wall washing lamp?
The led lens is closely connected with the led, which can improve the light utilization efficiency and luminous efficiency and can be used according to different effects. Specifications are penetration and refraction.
Lenses are made according to the refraction law of light, and lenses are optical elements made of transparent substances (such as glass and crystal). The lens is a refracting mirror, a spherical and planar transparent body, and its image has both real and virtual images. Generally, lenses can be divided into two categories: convex lenses and concave lenses; The middle part is thicker than the edge part, which is called convex lens, including biconvex, plano-convex and concave-convex. The middle part is thinner than the edge part and is called a concave lens. There are three kinds: double concave, flat concave and convex concave.
Led wall lamp lens led lens is generally a silicone lens, because silicone can resist high temperature (and can also be reflowed), so it is often packaged directly on the LED chip. Generally, the silica gel lens is small with a diameter of 3- 10 mm, and the led lens is closely connected with the led of the led wall washing lamp, which is helpful to improve the luminous efficiency of the led and change the light field distribution of the led. Led lens is an optical system closely connected with led, which is helpful to improve luminous efficiency and change the light field distribution of led. High-power led lens/reflector cup is mainly used for focusing and guiding light of high-power led cold light source series products. The light distribution curve of high-power led lens is designed according to the light emitting angles of different LEDs. By increasing light reflection, light loss is reduced and light efficiency is improved.
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(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)