Double-tailored microstructures

Harald Ries; Julius A. Muschaweck

doi:10.1117/12.368244

6 October 1999 Double-tailored microstructures

Harald Ries, Julius A. Muschaweck

Proceedings Volume 3781, Nonimaging Optics: Maximum Efficiency Light Transfer V; (1999) https://doi.org/10.1117/12.368244
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Microstructures can be viewed as nonimaging devices where all edge rays involved do not change direction over the aperture(s) of the device. This is equivalent to saying that the distance to source and target is much larger than the dimension of the device, which justifies the name microstructure for these devices. Consequently the shape of a microstructure device is independent of its size in this limit. The condition that the etendue of source and target must be equal, generally implies that the projected angle and not the angle itself under which source and target are seen must be equal. This requires at least two surfaces (reflective or refractive). We show how the shape of these two surfaces can be simultaneously tailored to the desired 4 directions delimiting a finite source and target.

Citation Download Citation

Harald Ries and Julius A. Muschaweck "Double-tailored microstructures", Proc. SPIE 3781, Nonimaging Optics: Maximum Efficiency Light Transfer V, (6 October 1999); https://doi.org/10.1117/12.368244

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