The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
May. 12, 2023
The Regents of the University of California, Oakland, CA (US);
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US);
Abstract
A diffractive camera performs class-specific imaging of target objects with instantaneous all-optical erasure of other classes of objects. This diffractive camera includes transmissive surfaces structured using deep learning to perform selective imaging of target classes of objects positioned at its input field-of-view. After fabrication, the substrate layers collectively perform optical mode filtering to accurately form images of the objects that belong to a target data class or group of classes, while instantaneously erasing objects of the other data classes at the output field-of-view. In another embodiment, a class-specific permutation camera is disclosed where objects of a target data class are pixel-wise permuted for all-optical class-specific encryption, while the other objects are irreversibly erased from the output image. The diffractive camera can be scaled to different parts of the electromagnetic spectrum to provide transformative opportunities for privacy-preserving digital cameras and task-specific data-efficient imaging.