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Proceedings Paper

Fast calculation of bokeh image structure in camera lenses with multiple aspheric surfaces
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Paper Abstract

Three different approaches to calculation of internal structure of bokeh image in camera lenses with two aspheric surfaces are analyzed and compared – the transfer function approach, the beam propagation approach and direct raytracing in an optical design software. The transfer function approach is the fastest and provides accurate results when peak-to-valley of mid-spatial frequency phase modulation induced at the lens exit pupil is below λ/10. Aspheric surfaces are shown to contribute to the bokeh structure differently increasing the complexity of bokeh image especially for offaxis bokeh.

Paper Details

Date Published: 17 December 2014
PDF: 10 pages
Proc. SPIE 9293, International Optical Design Conference 2014, 92931P (17 December 2014); doi: 10.1117/12.2073070
Show Author Affiliations
V. P. Sivokon, Raytheon ELCAN Optical Technologies (Canada)
M. D. Thorpe, Raytheon ELCAN Optical Technologies (Canada)


Published in SPIE Proceedings Vol. 9293:
International Optical Design Conference 2014
Mariana Figueiro; Scott Lerner; Julius Muschaweck; John Rogers, Editor(s)

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