US 12,106,688 B1
Adjustable light field for extended reality
Christoph Ebner, Graz (AT); Alexander Plopski, Graz (AT); and Dieter Schmalstieg, Graz (AT)
Assigned to Snap Inc., Santa Monica, CA (US)
Filed by Snap Inc., Santa Monica, CA (US)
Filed on May 15, 2023, as Appl. No. 18/317,847.
Int. Cl. G09G 3/00 (2006.01); G06F 3/01 (2006.01); G09G 3/34 (2006.01)
CPC G09G 3/001 (2013.01) [G06F 3/013 (2013.01); G09G 3/3406 (2013.01); G09G 2354/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A head-wearable extended reality (XR) device comprising:
a light field display arrangement mounted to a frame, the light field display arrangement comprising a first display layer, a second display layer, and at least one light source that is arranged to illuminate the first display layer and the second display layer to generate a directional field of light, at least one of the first display layer or the second display layer being selectively displaceable relative to the frame, wherein one of the first display layer or the second display layer is a front display layer and the other one of the first display layer or the second display layer is a rear display layer, the front display layer being arranged in front of the rear display layer in a light path of the XR device, and wherein the first display layer comprises a first spatial light modulator (SLM) layer and the second display layer comprises a second SLM layer.