Oni Systems Corp.

James S Wong

Matthew Derstine

Suzanne Wakelin

Optical systems are corrected for a variety of aberrations by a microlens array where an optical property of the individual microlenses varies as a function of position in the array. For example, the microlenses can be configured so that the focal length varies to correct field curvature. Representative environments for the microlens array may be characterized by a pixellated source (array of individual sources) in an object plane or a pixellated detector (array of individual detectors) in an image plane, or both.

Microlens array with spatially varying optical property

An optical system for imaging an array of light sources includes an array of microlenses disposed to intercept light from respective light sources in the array of light sources to reduce the divergence angles of light emanating from the light sources, a first array of lenses (sometimes referred to as minilenses), a second array of lenses (minilenses), and an additional array of microlenses disposed to intercept and focus light from the second array of lenses. Each lens in the first array is sized to intercept light from a respective sub-plurality of the microlenses, and each lens in the second array intercepts and focuses light from a respective lens in the first array. The first and second arrays of minilenses are preferably configured to define a doubly-telecentric imaging system. Each microlens in the additional array intercepts and focuses light that originated from a respective light source in the array of light sources and passed through a respective microlens in the first-mentioned array of microlenses.

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Mountain View, CA, United States of America

James S Wong