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公开(公告)号：US11640054B2
公开(公告)日：2023-05-02
申请号：US17207025
申请日：2021-03-19
发明人： Maik Andre Scheller , Liliana Ruiz Diaz , Marc Aurele Gilles , Andrew John Ouderkirk , Robert Dale Cavin
摘要： An eyebox region is illuminated with first coherent light and second coherent light having a different wavelength than the first coherent light. A first self-mixed interferometer (SMI) signal is generated in response to first feedback light received back from the eyebox region. A second SMI signal is generated in response to second feedback light received back from the eyebox region. Eye data is generated in response to at least the first SMI signal and the second SMI signal.
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公开(公告)号：US11536555B2
公开(公告)日：2022-12-27
申请号：US17167005
申请日：2021-02-03
发明人： Maik Andre Scheller , Liliana Ruiz Diaz , Marc Aurele Gilles , Andrew John Ouderkirk , Robert Dale Cavin
IPC分类号： G01B9/02 , G02B27/01 , G01B11/22 , G01B9/02097 , G01B9/02017
摘要： Self-mixed interferometer (SMI) devices and techniques are described for measuring depth and/or velocity of objects. The SMI devices and techniques may be used for eye-tracking. A light source of an SMI sensor emits coherent light that is directed to a target location with a scanning module. One or more SMI signals are measured. The one or more SMI signals are generated by the SMI sensor in response to feedback light received from the target location. The feedback light is a portion of the coherent light that illuminated the target location.
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公开(公告)号：US20230064721A1
公开(公告)日：2023-03-02
申请号：US17982534
申请日：2022-11-08
发明人： Maik Andre Scheller , Liliana Ruiz Diaz , Marc Aurele Gilles , Andrew John Ouderkirk , Robert Dale Cavin
IPC分类号： G01B9/02 , G01B9/02017 , G01B9/02097 , G01B11/22 , G02B27/01
摘要： A light source of a self-mixed interferometer (SMI) emits infrared light. The infrared light is directed to an eyebox location with the scanning module by scanning the infrared light into a waveguide. Feedback infrared light is measured by a light sensor of the SMI.
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