Invention Grant
- Patent Title: Optical combiner including polarization-selective elements and switchable half-wave plates for pupil steering
-
Application No.: US16733092Application Date: 2020-01-02
-
Publication No.: US11619815B2Publication Date: 2023-04-04
- Inventor: Gang Li , Changwon Jang , Giseung Bang , Andrew Maimone , Mengfei Wang , Afsoon Jamali , Lu Lu , Hao Yu
- Applicant: META PLATFORMS TECHNOLOGIES, LLC
- Applicant Address: US CA Menlo Park
- Assignee: META PLATFORMS TECHNOLOGIES, LLC
- Current Assignee: META PLATFORMS TECHNOLOGIES, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: G02B27/01
- IPC: G02B27/01

Abstract:
An optical assembly includes a beam steering device and a holographic optical element. The beam steering device is switchable between different states including a first state and a second state. The beam steering device includes a first polarization-selective optical element and a first tunable optical retarder optically coupled with the first polarization-selective optical element. The holographic optical element is positioned relative to the beam steering device for receiving light from the beam steering device and projecting a first light pattern while the beam steering device is in the first state and a second light pattern distinct from the first light pattern while the beam steering device is in the second state.
Public/Granted literature
Information query