公开(公告)号：US11635637B1

公开(公告)日：2023-04-25

申请号：US16861125

申请日：2020-04-28

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew Alexander Herbert ,  Robert Edward Stevens ,  Thomas Norman Llyn Jacoby ,  Andrew John Ouderkirk

IPC: G02C7/08

Abstract: Examples include a device including a fluid lens having a membrane (that may be in elastic tension), a substrate, a fluid at least partially enclosed between the membrane and the substrate, and a support structure configured to provide a guide path for an edge portion of the membrane, such as a membrane attachment at a periphery of the membrane. The guide path may be configured to greatly reduce (or substantially eliminate) changes in the elastic energy of the membrane as the membrane profile is adjusted. The guide path may be configured so that the elastic force exerted by the membrane is generally normal to the guide path for each location on the guide path. Adjustment of the membrane profile may include applying an actuation force that is normal to the elastic force exerted by the membrane. Various other methods and apparatus are also disclosed.

公开(公告)号：US11719960B1

公开(公告)日：2023-08-08

申请号：US16869222

申请日：2020-05-07

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew Alexander Herbert ,  Thomas Norman Llyn Jacoby ,  Hayden Erik Hernández ,  Andrew John Ouderkirk

IPC: G02C7/08 ,  G02B1/06 ,  G02B27/01

CPC classification number: G02C7/088 ,  G02B1/06 ,  G02B27/0172 ,  G02B2027/0178

Abstract: Examples include a device including a fluid lens having a membrane, a substrate, and a fluid at least partially enclosed between the membrane and the substrate. The membrane may have a spatial variation in at least one membrane parameter along a particular direction, that may compensate for gravity sag in the membrane of the fluid lens when the device is worn by a user. Examples also include related methods and systems.

公开(公告)号：US11561415B1

公开(公告)日：2023-01-24

申请号：US15931068

申请日：2020-05-13

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Thomas Norman Llyn Jacoby ,  Andrew Alexander Herbert ,  Robert Edward Stevens

IPC: G02C7/08

Abstract: An example device may include a fluid lens having a membrane assembly including a membrane and one or more membrane attachments, a substrate, a fluid located within an enclosure formed at least in part by the membrane and the substrate, and a support structure, attached to the substrate, including an actuation guide. The device may include an actuator mechanically coupled to the actuation guide and configured to change an orientation of the actuation guide relative to another device component, such as a substrate or frame. An example actuation guide may engage with the membrane attachment, and the movement of the membrane attachment along the actuation guide in response to the change in the orientation of the actuation guide may adjust an optical property, such as a focal length, of the fluid lens.