Abstract

Broadband field-of-view expansion using computational optics methods is presented. A pair of chirp gratings, implemented by digital micromirror devices, is placed on the optical entrance pupil plane of an optical system. The gratings perform achromatic translations of the image across the camera, and a wide image is reconstructed by a post-processing procedure. Optical design for such a system is proposed, and physical analysis shows the considerations of using these optical elements. All methods are established by simulations and experiments.

© 2019 Optical Society of America

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