Freeform surface design for a light-emitting diode-based collimating lens

Optical Engineering

Volumn 49, Issue 9, 2010, Pages

  Chen, Jin Jia ^a   Lin, Chin Tang ^a  

^a NATIONAL CHANGHUA UNIVERSITY OF EDUCATION   (Taiwan)

Author keywords

Collimating lens; Freeform surface; Light emitting diode; Total internal reflection surface

Indexed keywords

APPROXIMATION METHODS; COLLIMATING LENS; FREE-FORM SURFACE; FREE-FORM SURFACE DESIGN; FREEFORMS; LED LIGHT SOURCE; LIGHT BEAM; LIGHT RAYS; OPTICAL EFFICIENCY; PROJECTION DISTANCE; REFRACTIVE SURFACES; SPHERICAL SURFACE; SPREAD ANGLE; TARGET PLANE; TOTAL INTERNAL REFLECTIONS; VERTICAL PLANE;

APPROXIMATION THEORY; COMPUTER SIMULATION; LIGHT EMISSION; LIGHT SOURCES; REFRACTIVE INDEX;

LIGHT EMITTING DIODES;

EID: 79960623081     PISSN: 00913286     EISSN: 15602303     Source Type: Journal    
DOI: 10.1117/1.3488046     Document Type: Article

References (19)

1. H. Ries and J. Muschaweck, "Tailored freeform optical surfaces," J. Opt. Soc. Am. A 19(3), 590-595 (2002).
2. A. Pawlak and K. Zaremba, "Reflector luminaire with high power light-emitting diodes for general lighting," Appl. Opt. 47(3), 467-473 (2008).
3. A. Domhardt, U. Rohlfing, S. Weingaertner, K. Klinger, D. Koob, K. Manz, and U. Lemmer, "New design tools for LED headlamps," Proc. SPIE 7003, 70032C (2008).
4. A. Domhardt, S. Weingaertner, U. Rohlfing, and U. Lemmer, "TIR optics for non-rotationally symmetric illumination design," Proc. SPIE 7103, 710304 (2008).
5. X. Hao, Z. Zheng, X. Liu, and P. Gu, "Freeform surface lens design for uniform illumination," J. Opt. A, Pure Appl. Opt. 10, 075005 (2008).
6. Y. Ding, X. Liu, Z. Zheng, and P. Gu, "Freeform LED lens for uni-form illumination," Opt. Express 16(17), 12958-12966 (2008).
7. P. Benítez, J. C. Miñano, J. Blen, R. Mohedano, J. Chaves, O. Dross, M. Hernández, and W. Falicoff, "Simultaneous multiple surface op-tical design method in three dimensions," Opt. Eng. 43(7), 1489-1502 (2004).
8. L. Sun, S. Jin, and S. Cen, "Free-form microlens for illumination applications," Appl. Opt. 48(29), 5520-5527 (2009).
9. D. Weigert, "Miniature spotlight with extremely variable exit angle and constant even field of illumination," U.S. Patent No. 4,823,243 (1989).
10. D. Weigert and D. Chin, "Spotlight with an adjustable angle of ra-diation and with an aspherical front lens," U.S. Patent No. 6,499,862 B1 (2002).
11. V. Medvedev and W. A. Parkyn, Jr., "Screen illumination apparatus and method," U.S. Patent No. 6,166,860 (2000).
12. V. Medvedev and W. A. Parkyn, Jr., "Light collimating and distrib-uting apparatus," U.S. Patent No. 6,181,476 B1 (2001).
13. J. Spigulis, "Compact dielectric reflective elements. I. Half-sphere concentrators of radially emitted light," Appl. Opt. 33(25), 5970-5974 (1994).
14. V. Medvedev and W. A. Parkyn, Jr., "Beam-forming lens with inter-nal cavity that prevents front losses," U.S. Patent No. 5,757,557 (1998).
15. Y. Zehn, Z. Jia, and W. Zhang, "The optimal design of TIR lens for improving LED illumination uniformity and efficiency," Proc. SPIE 6834, 68342K (2007).
16. W. J. Smith, Modern Optical Engineering, 3rd ed., Mc Graw-Hill, New York (2000).
17. J. Chaves, Introduction to Nonimaging Optics, Chap. 8.2, CRC Press, Boca Raton, FL (2008).
18. L. Piegl and W. Tiller, The NURBS Book, Springer-Verlag, Berlin (1997).
19. http://www.rhino3d.com.