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公开(公告)号：US11550153B2
公开(公告)日：2023-01-10
申请号：US16854613
申请日：2020-04-21
Applicant: Meta Platforms Technologies, LLC
Inventor： Weichuan Gao , Chadwick Brian Martin , Robin Sharma , Byron Taylor
Abstract: An optical assembly for an eye-tracking camera includes an aperture stop, a first optical surface, and a second optical surface. The optical assembly is configured to receive non-visible light reflected or scattered by an eye and to direct the non-visible light to an image sensor along an optical path, where the non-visible light is received from an optical combiner of an eye-tracking system. The first optical surface is disposed on the optical path and is configured to correct for field-independent optical aberrations induced by the optical combiner. The second optical surface is disposed on the optical path and is configured to correct for field-dependent optical aberrations induced by the optical combiner.
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公开(公告)号：US11850811B1
公开(公告)日：2023-12-26
申请号：US16696934
申请日：2019-11-26
Applicant: Meta Platforms Technologies, LLC
Inventor： Kurt Allen Jenkins , Chad Lichtenhan , Michael Patrick Schaub , Byron Taylor
CPC classification number: B29D11/00403 , B29C35/0805 , B29D11/00442 , G02B13/006 , G02B27/0172 , B29C2035/0827
Abstract: A method of fabricating a lens includes dispensing a first liquid optically-transmissive material into a first mold cavity and then curing the first liquid optically-transmissive material to form a first region the lens having a first refractive index and an optical interface surface. A second liquid optically-transmissive material then dispensed into a second mold cavity over the optical interface surface while the first region of the lens is disposed within the second mold cavity. The second liquid optically-transmissive material in the second mold cavity is cured to form a second region of the lens having a second refractive index. An optical interface between the first region and the second region conforms to the optical interface surface.
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公开(公告)号：US11604351B1
公开(公告)日：2023-03-14
申请号：US16878432
申请日：2020-05-19
Applicant: Meta Platforms Technologies, LLC
Inventor： Tamer Elazhary , Yang Zhao , Nicholas Daniel Trail , Byron Taylor
IPC: G02B27/01 , H04N13/363
Abstract: An optical assembly for a digital projector includes a lens and a field bias optical element. The lens is disposed to receive display light generated by a display and to direct the display light along an optical path. The lens is configured to provide a first field-of-view. The field bias optical element is disposed between the lens and an aperture stop of the optical assembly. The field bias optical element is configured to bias the display light in at least one direction to provide a second field-of-view that is greater than the first field-of-view.
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公开(公告)号：US11458699B2
公开(公告)日：2022-10-04
申请号：US16706859
申请日：2019-12-09
Applicant: Meta Platforms Technologies, LLC
Inventor： Kurt Allen Jenkins , Chad Lichtenhan , Michael Patrick Schaub , Byron Taylor
Abstract: A lens assembly includes a tube in which optical elements such as lenses or micro-lenses are individually fabricated by dispensing a volume of curable optical polymer into the tube, forming the desired shape for the optical element using one or more plungers having heads corresponding to a desired lensing curvature, applying radiant energy to the tube with the plungers in place to cure the optical polymer, and repeating as needed until the desired number of optical elements are fabricated within the lens assembly which may then be integrated as a single piece into a mobile or wearable device.
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