US 12,339,455 B2
Augmented reality display device
Yi-Jung Chiu, New Taipei (TW); Tsung-Wei Tu, New Taipei (TW); and Wei-Kuo Shih, New Taipei (TW)
Assigned to Acer Incorporated, New Taipei (TW)
Filed by Acer Incorporated, New Taipei (TW)
Filed on Mar. 24, 2023, as Appl. No. 18/189,206.
Claims priority of application No. 111143806 (TW), filed on Nov. 16, 2022.
Prior Publication US 2024/0161420 A1, May 16, 2024
Int. Cl. G02B 27/01 (2006.01); G06T 19/00 (2011.01)
CPC G02B 27/0172 (2013.01) [G06T 19/006 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An augmented reality display device, used for wearing in front of an eye of a user, wherein the augmented reality display device comprises:
an image source, used for emitting an image light beam;
a polarizer, disposed on a path of the image light beam;
a first wave plate, disposed on a path of the image light beam from the polarizer;
a transflective element, disposed on a path of the image light beam from the first wave plate;
a first lens, disposed on a path of the image light beam from the transflective element;
a second wave plate, disposed on a path of the image light beam from the first lens;
a reflective polarizer, disposed on a path of the image light beam from the second wave plate;
a second lens, disposed on a path of the image light beam from the reflective polarizer;
a light guiding unit, disposed on a path of the image light beam from the second lens, wherein the light guiding unit has a reflective surface; and
a curved transflective film, disposed on the light guiding unit, wherein after being incident on the light guiding unit, the image light beam is sequentially reflected by the reflective surface and the curved transflective film to the eye of the user, and a part of a light from an external object passes through the curved transflective film and is transmitted to the eye of the user.