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. 27, 2024
Filed:
Jun. 05, 2023
Lumotive, Inc., Redmond, WA (US);
Gleb M. Akselrod, Kenmore, WA (US);
Lie “Larry” Zhao, Washougal, WA (US);
Erik Edward Josberger, Renton, WA (US);
Laura Maria Pulido Mancera, Bellevue, WA (US);
Linda Gail Conway, Duvall, WA (US);
Prasad Padmanabha Iyer, Albuquerque, NM (US);
Lumotive, Inc., Redmond, WA (US);
Abstract
In various embodiments, a tunable optical surface includes a dielectric substrate layer with an array of elongated metal rails extending from the dielectric substrate parallel to one another and spaced from one another to form channels therebetween. The channels are etched deeper into the dielectric substrate to form extended-depth channels. The depth of each extended-depth channel is greater than the height of adjacent elongated metal rails. The dimensions of the elongated metal rails and the extended-depth channels therebetween may be subwavelength with respect to an operational bandwidth. A tunable dielectric material that has a tunable refractive index, such as liquid crystal, is positioned within the extended-depth channels between adjacent elongated metal rails.