US 12,379,601 B2
Systems and methods for external light management
Andrew Ian Russell, Plantation, FL (US)
Assigned to Magic Leap, Inc., Plantation, FL (US)
Filed by MAGIC LEAP, INC., Plantation, FL (US)
Filed on May 23, 2024, as Appl. No. 18/673,213.
Application 18/673,213 is a continuation of application No. 18/331,669, filed on Jun. 8, 2023, granted, now 12,032,170.
Application 18/331,669 is a continuation of application No. 17/813,693, filed on Jul. 20, 2022, granted, now 11,719,941, issued on Aug. 8, 2023.
Application 17/813,693 is a continuation of application No. 17/275,663, granted, now 11,428,942, issued on Aug. 30, 2022, previously published as PCT/US2019/051188, filed on Sep. 13, 2019.
Claims priority of provisional application 62/731,755, filed on Sep. 14, 2018.
Prior Publication US 2024/0310637 A1, Sep. 19, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); G02F 1/01 (2006.01); G02F 1/1335 (2006.01); G02F 1/1343 (2006.01)
CPC G02B 27/0172 (2013.01) [G02F 1/0136 (2013.01); G02F 1/133528 (2013.01); G02F 1/134309 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0134 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A head-mounted device, comprising:
a frame configured to be worn about a head of a user of the head-mounted device;
a controllable dimming assembly physically coupled to the frame in a manner so as to be positioned between an eye of the user and an environment of the user when the head-mounted device is worn by the user,
wherein the controllable dimming assembly comprises a first electrode assembly comprising a first electrode having a first spatially varying property, a second electrode assembly comprising a second electrode having a second spatially varying property different from the first spatially varying property, a first polarizer, a second polarizer and a liquid crystal layer, wherein the first and second electrode assemblies are disposed between the first and second polarizers, and the liquid crystal layer is disposed between the first and second electrode assemblies; and
control circuitry electrically coupled to the first and second electrodes of the controllable dimming assembly.