AN OPTICAL DEVICE COMPRISING A MULTI-ORDER DIFFRACTIVE FRESNEL LENS (MOD-DFL) AND AN ACHROMATIZING COMPENSATION MECHANISM, AND A METHOD FOR ENHANCING IMAGES CAPTURED USING THE MOD-DFL

An optical device is provided that comprises a multi-order diffractive Fresnel lens (MOD-DFL) and an achromatizing compensation mechanism that reduces refractive dispersion created by the MOD-DFL, thereby reducing the focal range of the MOD-DFL. A method is also provided of using the optical device...

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Bibliographic Details
Main Authors Milster, Thomas D, Apai, Daniel, Johnson, Lee C
Format Patent
LanguageEnglish
Published 23.09.2021
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:An optical device is provided that comprises a multi-order diffractive Fresnel lens (MOD-DFL) and an achromatizing compensation mechanism that reduces refractive dispersion created by the MOD-DFL, thereby reducing the focal range of the MOD-DFL. A method is also provided of using the optical device in an image processing system to obtain images of an object and processing the images to perform image enhancement.
Bibliography:Application Number: US201917258564