Simulation-based computation of the glare spread function in camera systems

T. L. R. Davenport; W. J. Cassarly; B. Crowther

doi:10.1117/12.3002837

12 March 2024 Simulation-based computation of the glare spread function in camera systems

T. L. R. Davenport, W. J. Cassarly, B. Crowther

Proceedings Volume 12913, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) V; 1291314 (2024) https://doi.org/10.1117/12.3002837
Event: SPIE AR | VR | MR, 2024, San Francisco, California, United States

Abstract

When designing camera systems, (for instance, in a cell phone), one important source of image degradation can come from stray light. This can result in ghost images caused by unwanted reflections off internal lens surfaces, or by out of field light being scattered from spacers or other surfaces in the optical system. In this paper, we demonstrate a method for characterizing the glare spread function (GSF) of an optical system using ray trace simulations. The GSFs can then be interpolated at angles and wavelengths that were not traced. Interpolated GSFs are applied to in-field image points as well as out of field points and then combined with the primary imaging path image. The result accurately predicts the detector illuminance.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

T. L. R. Davenport, W. J. Cassarly, and B. Crowther "Simulation-based computation of the glare spread function in camera systems", Proc. SPIE 12913, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) V, 1291314 (12 March 2024); https://doi.org/10.1117/12.3002837

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