Laser & Optoelectronics Progress, Volume. 51, Issue 3, 32302(2014)
Optimization of Freeform Surface Lens for Collimating Illumination of LED
An optimization design method of collimating lens is proposed. The quadratic B-spline theory, Scheme language and optimization engine are used in combination to achieve the optimization of freeform surface lens. The Lambert emission of 1 mm × 1 mm LED is used as light source, and the lens material is polymethyl methacrylate (PMMA). The collimating lenses of different structures are optimized by this way. The energy efficiency can be up to 90% . Compared with the current methods, it has the advantages of less dependence on the initial model, simple design process and high versatility.
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Hao Jian, Liu Hua, Sun Qiang, Wang Yao, Jing Lei. Optimization of Freeform Surface Lens for Collimating Illumination of LED[J]. Laser & Optoelectronics Progress, 2014, 51(3): 32302
Category: Optical Devices
Received: Oct. 22, 2013
Accepted: --
Published Online: Mar. 3, 2014
The Author Email: Jian Hao (haojianjenieciome8@163.com)