US 11,703,616 B2
Fluid lens with low gas content fluid
Hayden Erik Hernández, Oxford (GB); Thomas Norman Llyn Jacoby, Oxford (GB); and Robert Edward Stevens, Eynsham (GB)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by META PLATFORMS TECHNOLOGIES, LLC, Menlo Park, CA (US)
Filed on Oct. 20, 2020, as Appl. No. 17/75,040.
Claims priority of provisional application 62/930,788, filed on Nov. 5, 2019.
Prior Publication US 2021/0132267 A1, May 6, 2021
Int. Cl. G02B 3/14 (2006.01); G02B 1/04 (2006.01)
CPC G02B 3/14 (2013.01) [G02B 1/041 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A device including a fluid lens, wherein the fluid lens comprises:
a membrane;
a substrate; and
a fluid located within an enclosure formed at least in part by the membrane and the substrate, wherein:
the membrane is an elastic membrane;
the fluid comprises an amount of an additive that is effective to appreciably reduce bubble formation within the fluid;
the additive comprises particles;
the particles are silica nanoparticles;
an associated fluid volume associated with each silica nanoparticle is less than a stable bubble volume for a stable bubble within the fluid; and
the associated fluid volume is determined by dividing a fluid volume by a number of the silica nanoparticles within the fluid volume.