標題: Design of aspheric lens to collimate and uniform irradiance of a light source with Lambertian angular distribution - art. no. 63422F
作者: Cheng, Chieh-Jen
Chern, Jyh-Long
光電工程學系
Department of Photonics
關鍵字: lens design;geometrical optics;optical design;aspherics
公開日期: 2006
摘要: A design of aspheric lens is proposed to collimate a light source of Lambertian angular distribution and generate homogenous irradiance. Two numerical solutions were calculated. One used even orders of general aspheres to describe the aspheric surfaces and the performance was evaluated by commercial optical software package Tracepro. Both of high numerical aperture (NA) of 0.79 and good RMS uniformity within 95% of designed area in the second surface of lens could be obtained. The reverse of this lens would be used in focusing and the simulated point spread function (PSF) is almost diffraction-limited. The other fitted both of aspheric surface with radial spline surface and the performance was evaluated by commercial optical software package OSLO. With the radial spline surface representation, the aspheric lens has a higher NA of 0.9; meanwhile, the uniformity was still good enough and PSF is also near diffraction-limited.
URI: http://hdl.handle.net/11536/17126
http://dx.doi.org/10.1117/12.692228
ISBN: 0-8194-6427-9
ISSN: 0277-786X
DOI: 10.1117/12.692228
期刊: International Optical Design Conference 2006, Pts 1 and 2
Volume: 6342
起始頁: F3422
結束頁: F3422
顯示於類別:會議論文


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