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. 20, 2024
Filed:
Sep. 23, 2020
Lg Chem, Ltd., Seoul, KR;
Jae Jin Kim, Daejeon, KR;
Byung Mook Kim, Daejeon, KR;
Dae Han Seo, Daejeon, KR;
Min Soo Song, Daejeon, KR;
Bu Gon Shin, Daejeon, KR;
Abstract
An embodiment according to an aspect of the present disclosure provides a device for manufacturing a display lens, a method for manufacturing a display lens using the device, and a head-mounted display device including the display lens manufactured thereby. The device for manufacturing a display lens including a holographic optical element formed by recording a hologram on a photosensitive substrate, in which a substrate is coated with a photosensitive material, through irradiation of laser beams includes: a first laser light incidence unit configured to cause first laser light, converging along an irradiation direction, to be incident on one surface of the photosensitive substrate; and a second laser light incidence unit configured to cause second laser light, diverging at a plurality of points along an irradiation direction, to be incident on the other surface of the photosensitive substrate.