| 摘要 |
The present invention relates to an LED light diffusion lens where an asymmetric free curve formula is applied. By providing an LED light diffusion lens where an asymmetric free curve formula is applied, the uniformity on the target area according to the light control o fan LED, which is a light source, can be improved. In particular, a highway-dedicated LED streetlight capable of supporting the light control and the lighting efficiency appropriate for the surroundings and the traffic lane characteristics in the outskirts, in the downtown, or in a four-lane or two-lane highway can be provided, opening a new market. By forming an incidence surface and an exit surface as an aspherical surface and utilizing the asymmetric free curve to the maximum, it is possible to freely modify and change the curve by adjusting the aspherical coefficient. Furthermore, the present invention enables the numerical scheme by a free curve and a mathematical design as well as fine control through numerical control, thereby enhancing the preciseness of the light control. |
