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:
Sep. 14, 2021
Filed:
Mar. 06, 2020
Coretronic Corporation, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A near eye display device includes a display and a first waveguide element, the first waveguide element including a light incoming surface, a light exiting surface, a reflective inclined surface and beam splitting elements. An image beam provided by the display enters the first waveguide element via the light incoming surface and is reflected by the reflective inclined surface in the first waveguide element to the beam splitting elements, and is split by the beam splitting elements and leaves the first waveguide element via the light exiting surface. The reflective inclined surface has a first reflectivity distribution in a first incident angle range and a second reflectivity distribution in a second incident angle range. An angle in the second incident angle range is greater than an angle in the first incident angle range, and the first reflectivity distribution has a greater reflectivity average value than the second reflectivity distribution.