Freeform lens design for LED collimating illumination

Jin Jia Chen, Te Yuan Wang, Kuang Lung Huang, Te Shu Liu, Ming Da Tsai, Chin Tang Lin

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

We present a simple freeform lens design method for an application to LED collimating illumination. The method is derived from a basic geometric-optics analysis and construction approach. By using this method, a highly collimating lens with LED chip size of 1.0 mm×1.0 mm and optical simulation efficiency of 86.5% under a view angle of ± 5 deg is constructed. To verify the practical performance of the lens, a prototype of the collimator lens is also made, and an optical efficiency of 90.3% with a beam angle of 4.75 deg is measured.

Original languageEnglish
Pages (from-to)10984-10995
Number of pages12
JournalOptics Express
Volume20
Issue number10
DOIs
Publication statusPublished - 2012 May 7

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lens design
light emitting diodes
illumination
lenses
collimators
chips
prototypes
optics
simulation

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Chen, J. J., Wang, T. Y., Huang, K. L., Liu, T. S., Tsai, M. D., & Lin, C. T. (2012). Freeform lens design for LED collimating illumination. Optics Express, 20(10), 10984-10995. https://doi.org/10.1364/OE.20.010984
Chen, Jin Jia ; Wang, Te Yuan ; Huang, Kuang Lung ; Liu, Te Shu ; Tsai, Ming Da ; Lin, Chin Tang. / Freeform lens design for LED collimating illumination. In: Optics Express. 2012 ; Vol. 20, No. 10. pp. 10984-10995.
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Chen, JJ, Wang, TY, Huang, KL, Liu, TS, Tsai, MD & Lin, CT 2012, 'Freeform lens design for LED collimating illumination', Optics Express, vol. 20, no. 10, pp. 10984-10995. https://doi.org/10.1364/OE.20.010984

Freeform lens design for LED collimating illumination. / Chen, Jin Jia; Wang, Te Yuan; Huang, Kuang Lung; Liu, Te Shu; Tsai, Ming Da; Lin, Chin Tang.

In: Optics Express, Vol. 20, No. 10, 07.05.2012, p. 10984-10995.

Research output: Contribution to journalArticle

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Chen JJ, Wang TY, Huang KL, Liu TS, Tsai MD, Lin CT. Freeform lens design for LED collimating illumination. Optics Express. 2012 May 7;20(10):10984-10995. https://doi.org/10.1364/OE.20.010984