Optimal design of a nonimaging TIR doublet lens for an illumination system using an LED source

John C. Bortz; Narkis E. Shatz; Matthijs Keuper

doi:10.1117/12.562598

29 September 2004 Optimal design of a nonimaging TIR doublet lens for an illumination system using an LED source

John C. Bortz, Narkis E. Shatz, Matthijs Keuper

Proceedings Volume 5529, Nonimaging Optics and Efficient Illumination Systems; (2004) https://doi.org/10.1117/12.562598
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

We consider the problem of designing illumination optics to transfer flux from an LED source into a rectangular target aperture. An important constraint on this design was that it provide a large working distance between the source and the target aperture. An optimized compact nonimaging system consisting of an aspheric totally-internally-reflecting (TIR) lens along with an aspheric singlet was developed to provide high flux-transfer efficiency with the required working distance. A global optimization procedure was used to search a 65-dimensional parameter space for the set of optical-component shape and positioning parameters providing maximum performance, while satisfying the design constraints. A total source-to-target flux-transfer efficiency of 85.0% was achieved by the design, assuming ideal AR coatings on all refractive surfaces.

Citation Download Citation

John C. Bortz, Narkis E. Shatz, and Matthijs Keuper "Optimal design of a nonimaging TIR doublet lens for an illumination system using an LED source", Proc. SPIE 5529, Nonimaging Optics and Efficient Illumination Systems, (29 September 2004); https://doi.org/10.1117/12.562598

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