Abstract

An image multiplexer (IMX) composed of a planar microlens array is proposed for an input device of an optical parallel processing system. Imaging properties were evaluated experimentally and numerically to find a design rule and the limitations of use of the IMX. As a result, it was found that a planar microlens has a relatively good distortion property and low MTF sensitivity for oblique imaging, even if an image height goes to as high as 60% of the lens radius. Furthermore, a compensation method for image shift nonlinearity is proposed. The effective lens number in an array is estimated.

© 1990 Optical Society of America

Multiple imaging and multiple Fourier transformation using planar microlens arrays

Kenjiro Hamanaka, Hiroyuki Nemoto, Masahiro Oikawa, Eiji Okuda, and Takashi Kishimoto
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Multimatched filtering using a microlens array for an optical–neural pattern recognition system

Masahiro Agu, Atsushi Akiba, Teruhisa Mochizuki, and Shun-ichi Kamemaru
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High numerical aperture planar microlens with swelled structure

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