关键词: 光学设计, 二次配光, 混光, 均匀照明, Lighttools, Solidworks

Abstract:

The lens side prism and core films before and after adding micro lens to design a light angle variable uniform light mixing illumination lens. Based on using a new method combining prism and micro lens , prism and lens respectively on the outer core micro lens for new design. The calculation and derivation of the mapping relationship between the target angle, get the contour curve figure the total reflection prism, micro lens array and outside of the center part of the refraction type, the lens model is established by Solidworks, and then import the optical simulation software Lighttools for ray tracing. Using twelve 30 mm*30 mm patches with different color temperature LED as the light source, design a single practical projection lens of height is 20 mm, diameter is 52 mm. Simulation and experimental results show that the designed lens, the light source, the optical efficiency is as high as 87%, half intensity angle is 40.6 degrees, can achieve uniform mixing light projection illuminition.

Key words: optical design； second distribution； mixing lightting； uniform ligntting； Lighttools； Solidworks