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:
Jul. 28, 2026
Filed:
Oct. 27, 2023
SD Optics, Inc., Seoul, KR;
Jin Young Sohn, Seoul, KR;
Jong Choon Kim, Seoul, KR;
Hong Ju Kim, Seoul, KR;
Min Beom Lee, Seoul, KR;
Ki Bok Kim, Seoul, KR;
Cheong Soo Seo, Seoul, KR;
SD Optics, Inc., Seoul, KR;
Abstract
The present invention comprises freeform variable focusing optical component, optical module, focus controller, display unit, display controller and processing unit. With the freeform variable focusing optical component, the augmented reality head up display system of the present invention can overcome limitation on the number of virtual images for various focal length of the system and support visual information to vehicle driver comfortably decreasing the fatigue of eye as reducing the eyes distributed focus change between objects and display.