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:
Aug. 22, 2023
Filed:
Sep. 27, 2022
Pixieray Oy, Espoo, FI;
Klaus Melakari, Espoo, FI;
Ari Pitkänen, Vantaa, FI;
Pixieray Oy, Espoo, FI;
Abstract
An active optical element includes an active material encased between a first substrate and a second substrate, first electrode(s), second electrodes employed as a ground plane, and means for applying and modulating additional impedance between an electrical ground and the second electrodes. The second electrodes divide the active optical element into segments. The first electrode(s) are driven at given voltage(s). At least one of the second electrodes corresponding to at least one of the segments is selectively connected to an electrical ground without any additional impedance, while applying and modulating the additional impedance between the electrical ground and a remainder of the plurality of second electrodes. The active material in the at least one of the plurality of segments is controlled by a potential difference generated between the given voltage(s) and the electrical ground to produce a given optical power.