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:
Mar. 24, 2026
Filed:
Mar. 18, 2021
Letinar Co., Ltd, Anyang-si, KR;
Jeong Hun Ha, Seoul, KR;
LETINAR CO., LTD, Anyang-si, KR;
Abstract
The present invention relates to an optical device for augmented reality, and provides a lightweight optical device for augmented reality using a state change optical element, the lightweight optical device including: an optical means configured to transmit at least part of real object image light therethrough toward the pupil of an eye of a user; and a reflective unit disposed inside the optical means, and configured to transfer augmented reality image light, output from an image output unit, toward the pupil of the eye of the user by reflecting the augmented reality image light, thereby providing an image for augmented reality to the user; wherein the reflective unit is formed of a state change optical element whose reflectance for the reflection of light and transmittance are changed in response to a control signal of a controller.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile