公开(公告)号：US11703616B2

公开(公告)日：2023-07-18

申请号：US17075040

申请日：2020-10-20

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Hayden Erik Hernández ,  Thomas Norman Llyn Jacoby ,  Robert Edward Stevens

IPC: G02B3/14 ,  G02B1/04

CPC classification number: G02B3/14 ,  G02B1/041

Abstract: An example device includes a fluid lens, where the fluid lens includes a membrane, a substrate, and a fluid located within an enclosure formed at least in part by the membrane and the substrate. The membrane may be an elastic membrane. The fluid may include an amount of an additive that is effective to appreciably reduce bubble formation within the fluid, such as when a negative pressure is applied to the fluid. In some examples, the additive may include particles, such as nanoparticles. The additive may include a thixotropic agent that helps to impart an appreciable thixotropic property to the fluid. Various other methods, systems, and computer-readable media 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：US11630242B1

公开(公告)日：2023-04-18

申请号：US17082059

申请日：2020-10-28

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Sheng Ye ,  Lafe Purvis ,  Andrew John Ouderkirk ,  Manuel Caraballo-Sánchez ,  Hayden Erik Hernández

IPC: G02B1/06 ,  G02B3/14 ,  C07C319/12

Abstract: A liquid lens fluid composition includes a polyphenyl ether molecule having from 2 to 7 aromatic rings, where the rings include ortho substitutions, meta substitutions, or a combination of ortho, meta, and para substitutions. Inter-ring linkages may include sulfur or oxygen. The liquid lens fluid composition may be characterized by a refractive index over the visible spectrum of at least 1.4, a viscosity at room temperature of less than approximately 1000 cP, and a freezing point of less than approximately −10° C.