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:
Jun. 17, 2025
Filed:
Sep. 19, 2023
Alphamicron Incorporated, Kent, OH (US);
Antonio Munoz, Shaker Heights, OH (US);
Bahman Taheri, Shaker Heights, OH (US);
ALPHAMICRON INCORPORATED, Kent, OH (US);
Abstract
A variable transmission optical device ('VTOD') includes first and second cells in optical communication, each cell having an electro-optic material capable of changing from a state of higher light transmittance to a state of lower light transmittance upon a change of an electric field applied across the electro-optic material. The VTOD is switchable between i) a clear state having chromaticity Cand a photopic transmission PTof at least 20% wherein the first cell and second cell are each in the state of higher light transmission, ii) a first darkened state having chromaticity Cand a photopic transmission PTlower than PT, and iii) a second darkened state having chromaticity Cand a photopic transmission PTthat is lower than PT. Cand Ceach fall within chroma 2 when their respective PT values correspond to a Munsell value of 5 or less.