公开(公告)号：US11668931B2

公开(公告)日：2023-06-06

申请号：US16574452

申请日：2019-09-18

Applicant: GOOGLE LLC

Inventor： Thibault Louis David Leportier ,  Timothy Paul Bodiya

IPC: G02B27/01 ,  G02B27/00 ,  G02B6/12 ,  G02B6/28 ,  F21V8/00

CPC classification number: G02B27/0081 ,  G02B6/0028 ,  G02B6/12 ,  G02B6/2848 ,  G02B27/0172 ,  G02B2006/12102

Abstract: Systems, devices, and methods for for exit pupil expansion in a curved lens with embedded light guide are described. Exit pupil expansion in a curved lens may be achieved with a light guide comprising an outcoupler with minimized second order diffraction, where the outcoupler applies an optical power to outcoupled light.