Switchable multilayer cholesteric liquid crystal reflective polarizer

Y Huang, F Peng, L Lu, W Junren - US Patent 11,656,500, 2023 - Google Patents
G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY
MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS …

Pancake lens ghosting mitigation

GAO Weichuan, M Zannoli, YNB Sulai… - US Patent …, 2021 - Google Patents
(57) ABSTRACT A near-eye display assembly includes an electronic display for providing
image light, a circular polarizer disposed downstream of the electronic display for circularly …

System and method for generating a synthetic video stream

GS Rabin, SM Hoffberg - US Patent 11,103,787, 2021 - Google Patents
A system and method for receiving an ordered set of images and analyzing the images to
determine at least one position in space and at least one motion vector in space and time for …

Object tracking system including polarization selective optical element

S Hyunmin, S Alali, YH Lee, Z Yun - US Patent 11,869,560, 2024 - Google Patents
A system includes a polarization selective optical element configured to diffract a light
reflected by an object into a plurality of signal lights. The system also includes at least one …

Devices including birefringent medium having chirality

S Hyunmin, CH Tai, W Junren - US Patent App. 17/541,228, 2022 - Google Patents
A device is provided. The device includes a first birefringent film including a calamitic liquid
crystal (“LC”) material configured with a first helical structure. The device also includes a …

Display device

S Komura, K Okuda, K Onoda… - US Patent App. 17/450,477, 2022 - Google Patents
According to one embodiment, a display device including a display panel emitting display
light of linearly polarized light, a semi-transparent layer, a first retardation film, a reflective …

Compact polarization-based multi-pass optical architectures

GD Sharp, AD McGettigan - US Patent 11,740,536, 2023 - Google Patents
Optical systems that can produce digitally switchable optical power, optical pathlength, or
both. It can apply to reconfigurable wide-angle optical systems that are compact, light …