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公开(公告)号：US20220317438A1
公开(公告)日：2022-10-06
申请号：US17217904
申请日：2021-03-30
发明人： Liliana Ruiz Diaz , Maik Andre Scheller , Hao Yang
摘要： Beam steering devices include a laser and a metasurface for dynamic beam shaping of laser light. A steering actuator may adjust a metasurface with respect to a laser to dynamically shape the beam. Lasers in a plurality of lasers may be selectively activated to generate a desired beam shape.
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公开(公告)号：US20220299761A1
公开(公告)日：2022-09-22
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：US20220187681A1
公开(公告)日：2022-06-16
申请号：US17124319
申请日：2020-12-16
摘要： A light source based on an optical frequency mixer is disclosed. The light source has a first laser for emitting light at a first optical frequency, and a plurality of second lasers for emitting light at different second optical frequencies. The optical frequency mixer provides output light beams at mixed optical frequencies of the first and second lasers. Wavelength of output light beams may be tuned by tuning wavelength of any of the first or second lasers. In this manner, RGB wavelength-tunable light sources may be constructed based on red or near-infrared lasers. The wavelength tunability of the output light beams may be used to angularly scan or refocus the light beams.
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公开(公告)号：US11099393B2
公开(公告)日：2021-08-24
申请号：US16692648
申请日：2019-11-22
发明人： Maik Andre Scheller , Anurag Tyagi
IPC分类号： G02B6/26 , G02B27/01 , H01L23/00 , H01L33/06 , H01L33/08 , H01L33/14 , H01L33/24 , H01L33/30 , H01L33/58 , F21V8/00 , H01L25/16
摘要： A micro-LED includes a light emitting device that emits a light beam surface—normally and a plurality of semiconductor layers that modify the light beam. Each semiconductor layer includes a first lateral region and a second lateral region, where the first lateral region and the second lateral region are characterized by different respective refractive indices. The first lateral regions of the plurality of semiconductor layers are arranged in two or more different lateral areas of the semiconductor light source. The second lateral region in each semiconductor layer of the plurality of semiconductor layers includes a semiconductor material with a different respective composition. The plurality of semiconductor layers form a planar optical component that is used to, for example, collimate, converge, diverge, or deflect the light beam emitted by the light emitting device.
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公开(公告)号：US20220261025A1
公开(公告)日：2022-08-18
申请号：US17733971
申请日：2022-04-29
发明人： Jonathan Robert Peterson , Andrew John Ouderkirk , Maik Andre Scheller , Christopher Yuan-Ting Liao
摘要： A configuration circuit may be used with a power converter. The configuration circuit dynamically reconfigures one or more connections of output stages of a power converter to vary the output. A capacitive load may receive the output of the power converter.
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公开(公告)号：US20220103063A1
公开(公告)日：2022-03-31
申请号：US17123674
申请日：2020-12-16
发明人： Renate Eva Klementine Landig , Jonathan Robert Peterson , Maik Andre Scheller , Christopher Yuan Ting Liao , Andrew John Ouderkirk , Daniele Piazza , Yigit Menguc , Tianshu Liu
摘要： A high voltage-driven system includes a high voltage optical transformer and a high voltage driven device, where the high voltage optical transformer is located in close proximity to the high voltage driven device. A high voltage connection between the high voltage optical transformer and the high voltage driven device may be shorter than a low voltage connection between the high voltage optical transformer and a low voltage power source used to control the transformer.
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公开(公告)号：US20220302680A1
公开(公告)日：2022-09-22
申请号：US17207142
申请日：2021-03-19
发明人： Maik Andre Scheller , Liliana Ruiz Diaz , Hao Yang
摘要： A laser such as a vertical-cavity surface-emitting laser (VCSEL) emits laser light. A beam shaping metasurface is configured to apply a beam shaping profile to the laser light to generate shaped laser light in response to receiving the laser light.
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公开(公告)号：US20220244036A1
公开(公告)日：2022-08-04
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
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：US20220065407A1
公开(公告)日：2022-03-03
申请号：US17007308
申请日：2020-08-31
发明人： Guohua Wei , Maik Andre Scheller , Karol Constantine Hatzilias , Christopher Yuan-Ting Liao , Qi Zhang , Joseph S. Corry
摘要： A device or system includes a light source, an optical waveguide, and a light director. The light source emits illumination light. The optical waveguide includes a light input coupler. The light director receive the illumination light and generates shaped light. The light director adjusts the tilt angle and/or the divergence angle of the illumination light.
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公开(公告)号：US11036291B1
公开(公告)日：2021-06-15
申请号：US16803259
申请日：2020-02-27
IPC分类号： G06F3/13 , H01S5/02253 , G02B27/00 , H01S5/026 , G01S5/00 , H04N5/20 , G06F3/01 , G02B27/01 , H04N5/225 , H01S5/42
摘要： An illuminator includes a semiconductor emitter chip, e.g. a VCSEL chip, configured for emitting a light beam. A polarization-selective element is optically coupled to the semiconductor emitter chip for defining a polarization state of the emitted light beam. A beam redirecting optic is coupled to the polarization-selective element for receiving and at least one of collimating or redirecting the emitted light beam. The polarization-selective element, e.g. a polarization-selective optical feedback element for VCSEL, defines a polarization state of the emitted light beam, thereby stabilizing output optical power of light beam propagated through the beam redirecting optic. A light beam of a constant optical power and a well-defined polarization state may be used as an illumination source for an eye-tracking system.
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