公开(公告)号：US20220348748A1

公开(公告)日：2022-11-03

申请号：US17669157

申请日：2022-02-10

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Christopher Stipe ,  Andrew John Ouderkirk ,  Eugene Cho ,  Sheng Ye ,  Arman Boromand ,  Alex Ockfen ,  Nagi Hosni Elabbasi

IPC分类号： C08L23/06 ,  G02B1/04 ,  G02B5/20 ,  C08J5/18

摘要： A polymer thin film includes polyethylene having a weight average molecular weight of at least approximately 500,000 g/mol, where the thin film is characterized by transparency within the visible spectrum of at least approximately 80%, bulk haze of less than approximately 5%, and an in-plane elastic modulus of at least approximately 10 GPa. The polymer thin film may be thermally conductive and may be incorporated into an optical element and configured to dissipate heat, such as from a light-emitting device.

公开(公告)号：US20230057524A1

公开(公告)日：2023-02-23

申请号：US17883942

申请日：2022-08-09

申请人： Meta Platforms Technologies, LLC

发明人： Christopher Stipe ,  Marina Zannoli ,  Ian Erkelens ,  Andrew John Ouderkirk ,  Spencer Allan Wells ,  Eugene Cho ,  John Cooke ,  Robin Sharma ,  Jonathan Robert Peterson

IPC分类号： G02C7/08 ,  G06F3/01

摘要： Eyeglass devices may include a frame shaped and sized to be worn by a user at least partially in front of the user's eyes, a varifocal optical element mounted to the frame, and an eye-tracking element mounted to the frame. The varifocal optical element may include a substantially transparent actuator positioned at least partially within an optical aperture of the varifocal optical element and configured to alter a shape of the varifocal optical element upon actuation. The eye-tracking element may be configured to track at least a gaze direction of the user's eyes, and the varifocal optical element may be configured to change, based on information from the eye-tracking element, in at least one optical property including a focal distance. Various other devices, systems, and methods are also disclosed.