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:
Feb. 17, 2026
Filed:
Jan. 24, 2023
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Hugh Williams, Cambridge, GB;
Ariel Gomez Diaz, Cambridge, GB;
Charles Ernest Whittaker, Cambridge, GB;
James Hilton Clegg, Cambridge, GB;
Richard John Black, Cambridge, GB;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A method of calibrating a polarized light microscope comprises placing an optical data storage medium in a sample stage of the polarized light microscope, the optical data storage medium comprising a substrate having birefringent voxels embedded therein; measuring a background birefringence of the optical data storage medium; adjusting the polarized light microscope to compensate for the background birefringence. By correcting for background birefringence, image contrast may be improved. Further improvements may be obtained by optimizing swing angles of measurement states after compensating for the background birefringence. Also provided is a method of reading data from a birefringent optical data storage medium, and a system useful for implementing the methods.