公开(公告)号：US20210149208A1

公开(公告)日：2021-05-20

申请号：US17090999

申请日：2020-11-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Andrey N. PUTILIN ,  Aleksander V. MOROZOV ,  Vladislav V. DRUZHIN ,  Sergey E. DUBYNIN ,  Kseniia I. LVOVA ,  Polina I. MALININA ,  Sergey S. KOPENKIN ,  Yurii P. BORODIN ,  Anastasiia S. PEREVOZNIKOVA ,  Bongsu SHIN ,  Sunil KIM

IPC: G02B27/01

Abstract: Provided is a device configured to enlarge an exit pupil area of a visual optical apparatus, the device including a diffraction grating configured to output a plurality of diffracted light beams of a plurality of diffraction orders by diffracting an incident light beam, and a waveguide provided on the diffraction grating and configured to form an exit pupil based on a first diffracted light beam among the plurality of diffracted light beams output from the diffraction grating and to form exit pupil orders based on a second diffracted light beam among the plurality of diffracted light beams output from the diffraction grating.