
Proceedings Paper
Application of the light field for a simulation to evaluate the MTF of optical lens systems using renderingFormat | Member Price | Non-Member Price |
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Paper Abstract
The modulation transfer function (MTF) in lens systems can be simulated using rendering. Here, the MTF is obtained by
rendering test charts with bar target patterns after they are passed through an optical imaging system. The benefit of this
method is that it can be applied to shift-variant systems, to which it is difficult to apply the point spread function (PSF),
and that it enables the comparison of theoretical results to experimental results when test charts are imaged through an
optical imaging system. However, the number of sampled rays must be increased to suppress the variance in the resulting
radiance distribution, and the computation time increases proportionally with the number of analyzed spatial frequencies.
This report proposes the recording of the light field of light rays, which is a function describing light rays at the entrance
pupil. Focused images are compiled for each test chart based on the recorded light field. The time necessary for
compilation is significantly shorter than for ray tracing in a lens; therefore, the radiance distribution can be rapidly
obtained when the spatial frequency is changed. The methodology to record the light field and the data format are
outlined in this report.
Paper Details
Date Published: 25 September 2013
PDF: 6 pages
Proc. SPIE 8841, Current Developments in Lens Design and Optical Engineering XIV, 884118 (25 September 2013); doi: 10.1117/12.2023580
Published in SPIE Proceedings Vol. 8841:
Current Developments in Lens Design and Optical Engineering XIV
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)
PDF: 6 pages
Proc. SPIE 8841, Current Developments in Lens Design and Optical Engineering XIV, 884118 (25 September 2013); doi: 10.1117/12.2023580
Show Author Affiliations
Shuma Horiuchi, Tokyo Univ. of Science (Japan)
Manabu Yamamoto, Tokyo Univ. of Science (Japan)
Published in SPIE Proceedings Vol. 8841:
Current Developments in Lens Design and Optical Engineering XIV
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)
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