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公开(公告)号：US11860358B2
公开(公告)日：2024-01-02
申请号：US17878634
申请日：2022-08-01
Applicant: Meta Platforms Technologies, LLC
Inventor： Liliana Ruiz Diaz , Ruiting Huang , Robin Sharma , Jonathan Robert Peterson , Christopher Yuan Ting Liao , Andrew John Ouderkirk , Giancarlo Sigurd Sante Nucci , Clare Joyce Robinson
CPC classification number: G02B27/0093 , G02B27/0179 , G02B2027/0187
Abstract: Angular sensors that may be used in eye-tracking systems are disclosed. An eye-tracking system may include a plurality of light sources to emit illumination light and a plurality of angular light sensors to receive returning light that is the illumination light reflecting from an eyebox region. The angular light sensors may output angular signals representing an angle of incidence of the returning light.
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公开(公告)号：US20230393400A1
公开(公告)日：2023-12-07
申请号：US17832081
申请日：2022-06-03
Applicant: Meta Platforms Technologies, LLC
Inventor： Mohamed Tarek Ahmed El-Haddad , Yang Yang , Francesco Larocca , Robin Sharma
CPC classification number: G02B27/0172 , G02B27/0093 , G02B2027/0174 , G02B2027/0178
Abstract: A near-eye imaging system includes a light source, a waveguide, a scanner, and a sensor. The light source is configured to emit light. The waveguide includes an output coupler. The scanner is configured to direct the light to the output coupler at varying scan angles. The waveguide confines the light to guide the light to the output coupler. The output coupler has negative optical power and is configured to direct the light to exit the waveguide as expanding illumination light toward an eyebox region. The sensor is configured to generate a tracking signal in response to returning light incident on the sensor via the scanner and via the output coupler.
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公开(公告)号：US20230314596A1
公开(公告)日：2023-10-05
申请号：US17709964
申请日：2022-03-31
Applicant: Meta Platforms Technologies, LLC
Inventor： Karol Constantine Hatzilias , Ruobing Qian , Abhishek Sharma , Robin Sharma
CPC classification number: G02B27/0176 , H04N5/23219 , G02B2027/0178 , G02B2027/0138
Abstract: A transmitter emits transmit signals to an ear-region. Image signals are generated by a receiver. The image signals are generated by the receiver in response to receiving return signals. The return signals are the millimeter-wave transmit signals reflecting back from the ear-region. An ear-region image is generated in response to the image signals.
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公开(公告)号：US11768378B1
公开(公告)日：2023-09-26
申请号：US16743950
申请日：2020-01-15
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Mohamed Tarek El-Haddad , Ruobing Qian , Byron Taylor
CPC classification number: G02B27/0172 , G02C7/022 , G02C7/027 , G02C7/088
Abstract: A plano-concave optical layer is fabricated based on an optical-mechanical fit profile. A concave-side of the plano-concave optical layer and a base curvature provide an optical power that matches the optical power from prescription lenses of eyeglasses.
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公开(公告)号：US20230168508A1
公开(公告)日：2023-06-01
申请号：US17717669
申请日：2022-04-11
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Afsoon Jamali , Ming Lei , Sho Nakahara , Nihar Ranjan Mohanty , Karol Constantine Hatzilias , Carl Chancy
CPC classification number: G02B27/0172 , G02F1/163 , G02F1/157 , G02B2027/0178
Abstract: An optical assembly is configured to receive visible scene light at the backside of the optical assembly and to direct the visible scene light on an optical path toward the eyeward side. The optical assembly includes a dimming element disposed on the optical path, where the dimming element includes a photochromic material that is configured to darken in response to exposure to a range of light wavelengths. A display layer is disposed on the optical path between the eyeward side of the optical assembly and the dimming element. The display layer is configured to direct visible display light toward the eyeward side and also to direct activation light to the dimming element, where the activation light is within the range of light wavelengths to activate a darkening of the photochromic material to dim the visible scene light.
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Patent Agency Ranking
公开(公告)号：US20230168507A1
公开(公告)日：2023-06-01
申请号：US17717644
申请日：2022-04-11
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Afsoon Jamali , Ming Lei , Sho Nakahara , Nihar Ranjan Mohanty , Karol Constantine Hatzilias , Carl Chancy
CPC classification number: G02B27/0172 , G02F1/0126 , G02B2027/0118
Abstract: An optical assembly is configured to receive visible scene light at the backside of the optical assembly and to direct the visible scene light on an optical path toward the eyeward side. The optical assembly includes a dimming element disposed on the optical path, wherein the dimming element includes a photochromic material that is configured to darken in response to exposure to a range of light wavelengths. An illuminator, coupled to an edge of the dimming element, is configured to selectively emit an activation light within the range of light wavelengths to activate a darkening of the photochromic material to dim the visible scene light.
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公开(公告)号：US11650426B2
公开(公告)日：2023-05-16
申请号：US16854667
申请日：2020-04-21
Applicant: Meta Platforms Technologies, LLC
Inventor： Qi Zhang , Gang Li , Robin Sharma , Gregory Olegovic Andreev , Andrew John Ouderkirk , Karol Constantine Hatzilias , Ying Geng
CPC classification number: G02B27/0179 , G02B5/32 , G02B27/0081 , G02B27/0172 , G02B27/425 , G02B2027/0109 , G02B2027/0174 , G02B2027/0178 , G02B2027/0187 , G03H1/0402 , G03H2001/0413 , G03H2001/0439 , G03H2223/12 , G03H2223/24 , G03H2260/12
Abstract: Techniques disclosed herein relate generally to eye-tracking in near-eye display systems. One example of an eye illuminator for eye-tracking includes a substrate transparent to visible light, an array of light sources immersed in the substrate and configured to emit infrared light, and a holographic optical element conformally coupled to a surface of the substrate and encapsulated by an encapsulation layer. The holographic optical element is configured to transmit the visible light and diffract the infrared light emitted by the array of light sources to the eye of a user for eye-tracking.
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公开(公告)号：US20230135756A1
公开(公告)日：2023-05-04
申请号：US18085141
申请日：2022-12-20
Applicant: Meta Platforms Technologies, LLC
Inventor： Karol Constantine Hatzilias , Christopher Yuan-Ting Liao , Robin Sharma , Gregory Olegovic Andreev , Paul Armen Tchertchian , Andrew John Ouderkirk
Abstract: A plurality of light sources such as vertical-cavity surface-emitting lasers (VCSELs) are configured to emit light through emission apertures. The light may be near-infrared light. Optics are formed over the emission apertures of the plurality of light sources. The optics may provide different tilt angles or divergence angles to the non-visible light emitted by the light sources in the plurality of light sources.
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公开(公告)号：US20230134442A1
公开(公告)日：2023-05-04
申请号：US17709690
申请日：2022-03-31
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Robin Sharma
Abstract: An apparatus, system, and method for an imaging system that may be used to support eye tracking in a head mounted display. The imaging system may include an image sensor positioned in a user's field of view and within a lens assembly to capture light that is reflected from an eye. The imaging system may include two optical elements that are configured to at least partially direct scene light around the image sensor to conceal the image sensor from the user's eye. The image sensor is positioned between the two optical elements within the lens assembly.
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公开(公告)号：US11635807B1
公开(公告)日：2023-04-25
申请号：US16936337
申请日：2020-07-22
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Nicholas Daniel Trail , Robert Dale Cavin , Kyle Justin Curts
Abstract: A retinal imaging system includes a projector, an imaging device, and a controller coupled to an eye tracking system under test. The projector emits a light pattern to be delivered to a pupil of an eye, a location of the pupil being estimated by the eye tracking system under test. The imaging device captures one or more images of a retina of the eye illuminated with at least a portion of the light pattern. The controller determines one or more eye tracking parameters based on the captured one or more images of the retina. The controller compares each determined eye tracking parameter with each of estimated one or more eye tracking parameters, wherein values for the one or more eye tracking parameters are estimated by the eye tracking system under test. The controller characterizes each estimated eye tracking parameter based on the comparison.
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