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:
Nov. 04, 2025
Filed:
Jan. 20, 2022
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Pavel Trochtchanovitch, Redmond, WA (US);
Yun-Han Lee, Redmond, WA (US);
Zhisheng Yun, Sammamish, WA (US);
Hyunmin Song, Redmond, WA (US);
Sascha Hallstein, Saratoga, WA (US);
Yusufu Njoni Bamaxam Sulai, Snohomish, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
An optical assembly includes a first grating for redirecting a polychromatic light beam, e.g. for deviating light path of an optical system away from an optical train of some other optical sub-system. The first grating exhibits chromatic dispersion, resulting in imaging aberrations in the optical system relying on the first grating to deviate the light path. A second grating with lesser chromatic dispersion but closer to the imaging camera may be used to undo the chromatic dispersion induced blurring of the image caused by the first grating, resulting in sharpening of the final image.