Paper
2 September 2008 Advanced optics for LED flashlights
Narkis Shatz, John Bortz, John Matthews, Paul Kim
Author Affiliations +
Abstract
Since the invention of the flashlight in the late nineteenth century, it has proven indispensable for both civilian and military use. To date, the prevailing optical element used for collecting and concentrating light from the source has been the paraboloidal reflector. The advent of LED light sources, recent theoretical developments in nonimaging optics and advances in polymer optics are revolutionizing flashlight optics. We present new classes of optical solutions that provide superior efficiency, beam shaping, and active beam control. These solutions are patent pending.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Narkis Shatz, John Bortz, John Matthews, and Paul Kim "Advanced optics for LED flashlights", Proc. SPIE 7059, Nonimaging Optics and Efficient Illumination Systems V, 70590D (2 September 2008); https://doi.org/10.1117/12.795257
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Cited by 1 scholarly publication.
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KEYWORDS
Light emitting diodes

Reflectors

Nonimaging optics

Solar concentrators

Optical design

Light sources

Reflectivity

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