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公开(公告)号：US20200333607A1
公开(公告)日：2020-10-22
申请号：US16386024
申请日：2019-04-16
发明人： KAROL CONSTANTINE HATZILIAS , ROBIN SHARMA , ANDREW JOHN OUDERKIRK , QI ZHANG , CHRISTOPHER YUAN-TING LIAO
摘要： Aspects of an illumination layer of a near-eye optical element for a head mounted display (HMD) are provided herein. The illumination layer includes a plurality of in-field light sources and a keep-out zone. The in-field light sources are configured to emit infrared light to illuminate an eye of a user of the HMD for imaging of the eye by an eye-tracking camera. The keep-out zone includes a center that is to be aligned with a center of the eye when the eye is in a centered orientation, where the in-field light sources are arranged within the illumination layer outside of the keep-out zone.
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公开(公告)号：US20210041692A1
公开(公告)日：2021-02-11
申请号：US16534861
申请日：2019-08-07
发明人： QI Zhang , ROBIN SHARMA , ANDREW JOHN OUDERKIRK , Karol Constantine Hatzilias , CHRISTOPHER YUAN-TING LIAO , Gregory Olegovic Andreev
摘要： The disclosure includes optical systems and near-eye optical elements configured to suppress stray infrared light. Infrared illuminators illuminator an eyebox area with narrow-band infrared illumination light for eye-tracking. A combiner layer receives reflected infrared light reflected of an eye of the user and directs the reflected infrared light to a camera configured to capture eye-tracking images of an eye of a user. An anti-reflection (AR) coating may be disposed on a base curvature to reduce Fresnel reflections that generate stray light. A ghost suppression component may be paired with the infrared illuminators to reduce stray light becoming incident on the camera.
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公开(公告)号：US20200333592A1
公开(公告)日：2020-10-22
申请号：US16386009
申请日：2019-04-16
发明人： KAROL CONSTANTINE HATZILIAS , ROBIN SHARMA , ANDREW JOHN OUDERKIRK , QI ZHANG , CHRISTOPHER YUAN-TING LIAO
摘要： A method for the active control of in-field light sources of a head mounted display (HMD) includes receiving an image of an eye of a user of the HMD, where the image is captured by an eye-tracking camera in response to infrared light emitted by a plurality of in-field light sources. The method also includes selectively disabling at least one of the in-field light sources based on information from the image of the eye.
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公开(公告)号：US20200153204A1
公开(公告)日：2020-05-14
申请号：US16517186
申请日：2019-07-19
发明人： KAROL CONTANTINE HATZILIAS , CHRISTOPHER YUAN-TING LIAO , ROBIN SHARMA , GREGORY OLEGOVIC ANDREEV , PAUL ARMEN TCHERTCHIAN , ANDREW JOHN OUDERKIRK
摘要： A vertical-cavity surface-emitting laser for near-field illumination of an eye includes a semiconductor substrate, a first reflector, a mesa region, a first electrical contact, and a second electrical contact. The first reflector is disposed on a first side of the semiconductor substrate and the mesa region is disposed on the first reflector. The mesa region includes a second reflector and an active region, where the mesa region is configured to generate a diverging infrared beam. The first electrical contact is disposed on a second side of the semiconductor substrate, opposite the first side, for electrically coupling to the first reflector. The second electrical contact is also disposed on the second side of the semiconductor substrate for electrically coupling to the second reflector.
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