led light cup lens

Abstract

The invention discloses an LED lamp cup lens. The LED lamp cup lens comprises a lamp cup lens body for distributing light to an LED light source. The lamp cup lens body comprises a base surface, reflection surfaces, a lens light outlet surface, a refraction surface and a lens inner cavity outer surface which form the cup-shaped lens body. A reflection center point, a refraction center point, a light outlet center point of the concave surface of the lens light outlet surface and an inner cavity center point of a lens inner cavity are jointly located on the same axial line. In the using process, light is released from the LED light source, one part of light penetrates through an internal medium of the cup-shaped lens body and then is released to the exterior through the lens light outlet surface and the refraction surface, the other part of light is scattered to the reflection surfaces, reflected to the lens light outlet surface and the refraction surface through the reflection surfaces, and then released to the exterior, the light emitted by the LED light source can be fully released to the exterior, the light loss caused by the fact that the distance between surface protrusions of a peanut lens and a plane lens is long in the prior art is avoided, and the effects of improving the light utilization rate and achieving light illumination are achieved.

Description

technical field [0001] The invention relates to an LED optical light distribution instrument, in particular to an LED lamp cup lens in terms of an LED lens and an LED lens module. Background technique [0002] At present, there are various light distribution devices in the prior art, and LEDs are widely used in the lighting industry because they are easy to realize various forms of light distribution. Among them, the most commonly used technical method in LED light distribution is to design light distribution through secondary optical lenses, that is, to install independent lenses on the basis of well-made LED single lamps for light distribution design. The lens used is generally a polycarbonate (PC) lens, which is independent of the LED single lamp and is called a secondary lens. The secondary lens and the LED single light source together form an optical system to obtain the target light distribution form. The C-plane system is a commonly used coordinate system for measur...

AI Technical Summary

Problems solved by technology

Due to the convex surface of the peanut lens, the plane lens cover needs to be far away from the lens, so that the light loss of the peanut lens becomes serious, resulting in the loss of total reflection and refraction, so that a lot of light passes between the lens and the plane cover. The space can not be emitted, which reduces the light utilization rate

And because after adding the plane transparent cover on the surface of the lens in the form of peanuts, it is easy to have an impact on the original lens light distribution curve, reducing the lighting effect of the peanut lens

Images