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公开(公告)号：US10108022B2
公开(公告)日：2018-10-23
申请号：US15984717
申请日：2018-05-21
Applicant: Microvision, Inc.
Inventor： Matthieu Saracco , Roeland Collet , Alga Lloyd Northern, III
Abstract: Devices and methods are described herein that use a first solid figure element, a polarizing beam splitter, and a second solid figure element or array of mirrors to reduce speckle in projected images. Specifically, laser light is generated and split into two portions having orthogonal polarizations. The first portion of laser light is reflected in the second solid figure element or the array of mirrors and is then spatially recombined with the second portion of laser light in the first solid figure element. The difference in path length followed by the two portions generates a temporal incoherence in the recombined laser light beam, and that temporal incoherence reduces speckle in the projected image.
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公开(公告)号：US10114215B1
公开(公告)日：2018-10-30
申请号：US15489251
申请日：2017-04-17
Applicant: Microvision, Inc.
Inventor： Nenad Nestorovic , Roeland Collet
Abstract: The embodiments described herein provide scanning laser devices that include a relay optic between scanning surfaces. In general, the relay optic is configured to reimage the laser beam reflecting from a first scanner onto the second scanner. Specifically, the relay optic is configured to reimage a laser beam reflected from over an angular range from a first scanning surface of a first scanner onto the scanning surface of the second scanner. This can effectively make the exit pupil of the scanners substantially coincident, and thus can reduce the exit pupil disparity between the scanners that would otherwise exist.
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公开(公告)号：US10110866B1
公开(公告)日：2018-10-23
申请号：US15631097
申请日：2017-06-23
Applicant: Microvision, Inc.
Inventor： Matthieu Saracco , Roeland Collet , Alga Lloyd Nothern, III , Nenad Nestorovic , Jack H. Schmidt
Abstract: The embodiments described herein provide scanning laser devices that include an output optic configured to reduce image distortion. Specifically, the output optic is configured to reduce the distortions that could otherwise occur at relatively short projection distances, while also providing good image quality at relatively long projection distances. In general, the output optic includes a prism having a first surface, a second surface, and a third surface. The prism is configured such that the laser light interacts with each of these three surfaces while being transmitted through the prism and outputted to the display surface. The first, second, and third surfaces are each formed to have a freeform rotationally asymmetric shape, and these freeform rotationally asymmetric shapes are configured to work together to correct distortion in projected images.
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公开(公告)号：US20180299666A1
公开(公告)日：2018-10-18
申请号：US15489251
申请日：2017-04-17
Applicant: Microvision, Inc.
Inventor： Nenad Nestorovic , Roeland Collet
CPC classification number: G02B26/105 , G02B17/023 , G02B26/101 , G02B27/0081 , G02B27/0101 , H04N3/08
Abstract: The embodiments described herein provide scanning laser devices that include a relay optic between scanning surfaces. In general, the relay optic is configured to reimage the laser beam reflecting from a first scanner onto the second scanner. Specifically, the relay optic is configured to reimage a laser beam reflected from over an angular range from a first scanning surface of a first scanner onto the scanning surface of the second scanner. This can effectively make the exit pupil of the scanners substantially coincident, and thus can reduce the exit pupil disparity between the scanners that would otherwise exist.
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公开(公告)号：US20140232699A1
公开(公告)日：2014-08-21
申请号：US13772153
申请日：2013-02-20
Applicant: MICROVISION, INC.
Inventor： P. Selvan Viswanathan , Roeland Collet
IPC: G06F3/0354
CPC classification number: G06F3/03545 , G06F3/0386
Abstract: An actuated stylus conditionally occludes or exposes a reflector. The actuation mechanism may be mechanical, electrical, or a combination. When the reflector is occluded and the stylus is in the field of view of an interactive projection, no light is reflected back to the projection system. When the reflector is exposed, light is reflected back to the projection system. The reflector may be exposed in a time coded sequence to encode information such as a stylus ID and user action.
Abstract translation: 致动的触针有条件地封闭或暴露反射器。 致动机构可以是机械的，电的或组合的。 当反射器被遮挡并且触针处于交互式投影的视野中时，没有光被反射回投影系统。 当反射器暴露时，光被反射回投影系统。 反射器可以以时间编码的顺序曝光以编码诸如触针ID和用户动作的信息。
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Patent Agency Ranking
6.发明授权公开(公告)号：US10481739B2
公开(公告)日：2019-11-19
申请号：US15044174
申请日：2016-02-16
Applicant: Microvision, Inc.
Inventor： P. Selvan Viswanathan , Roeland Collet , George Thomas Valliath , Jari Honkanen , Matthieu Saracco
Abstract: Briefly, in accordance with one or more embodiments, an information handling system comprises a scanning system to scan one or more component wavelength beams into a combined multi-component beam in a first field of view, and a redirecting system to redirect one or more of the component wavelength beams into a second field of view. A first subset of the one or more component wavelength beams is projected in the first field of view and a second subset of the one or more component wavelength beams is projected in the second field of view. The first subset may project a visible image in the first field of view, and user is capable of providing an input to control the information handling system via interaction with the second subset in the second field of view.
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公开(公告)号：US10001656B2
公开(公告)日：2018-06-19
申请号：US15096791
申请日：2016-04-12
Applicant: Microvision, Inc.
Inventor： Matthieu Saracco , Roeland Collet
CPC classification number: G02B27/48 , G02B1/11 , G02B5/3083 , G02B26/105 , G02B27/0101 , G02B27/0172 , G02B27/285 , G02B2027/0178 , G03B21/2033 , G03B21/206 , G03B21/2073 , G03B21/208 , H04N9/3129 , H04N9/3135 , H04N9/3161 , H04N9/3167
Abstract: Devices and methods are described herein that use a first solid figure element, a polarizing beam splitter, and a second solid figure element to reduce speckle in projected images. Specifically, laser light is generated and split into two portions having orthogonal polarizations. The first portion of laser light is internally reflected off at least three internal faces of the second solid figure element and is then spatially recombined with the second portion of laser light in the first solid figure element. The difference in path length followed by the two portions generates a temporal incoherence in the recombined laser light beam, and that temporal incoherence reduces speckle in the projected image.
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公开(公告)号：US20190310489A1
公开(公告)日：2019-10-10
申请号：US15948151
申请日：2018-04-09
Applicant: Microvision, Inc.
Inventor： Alga Lloyd Nothern III , Matthieu Saracco , Roeland Collet , Thomas Byeman
Abstract: A beam combining device combines laser beams and performs speckle reduction of the laser light. Two laser beams are incident on a non-polarizing beam splitter and combined beams are split into two light paths with different optical path lengths. The two light paths may have different geometric path lengths and/or different indices of refraction in the paths to produce the different optical path lengths. One of the light paths is passed through a polarization rotation device and then the two light paths are recombined with a polarizing beam splitter to produce a combined reduced speckle laser beam.
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公开(公告)号：US20180275419A1
公开(公告)日：2018-09-27
申请号：US15984717
申请日：2018-05-21
Applicant: Microvision, Inc.
Inventor： Matthieu Saracco , Roeland Collet , Alga Lloyd Nothern, III
CPC classification number: G02B27/48 , G02B26/0833 , G02B27/14 , G02B27/283 , H04N5/7416 , H04N9/3129 , H04N9/3161 , H04N9/3167
Abstract: Devices and methods are described herein that use a first solid figure element, a polarizing beam splitter, and a second solid figure element or array of mirrors to reduce speckle in projected images. Specifically, laser light is generated and split into two portions having orthogonal polarizations. The first portion of laser light is reflected in the second solid figure element or the array of mirrors and is then spatially recombined with the second portion of laser light in the first solid figure element. The difference in path length followed by the two portions generates a temporal incoherence in the recombined laser light beam, and that temporal incoherence reduces speckle in the projected image.
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公开(公告)号：US20170293156A1
公开(公告)日：2017-10-12
申请号：US15096791
申请日：2016-04-12
Applicant: Microvision, Inc.
Inventor： Matthieu Saracco , Roeland Collet
CPC classification number: G02B27/48 , G02B1/11 , G02B5/3083 , G02B26/105 , G02B27/0101 , G02B27/0172 , G02B27/285 , G02B2027/0178 , G03B21/2033 , G03B21/206 , G03B21/2073 , G03B21/208 , H04N9/3129 , H04N9/3135 , H04N9/3161 , H04N9/3167
Abstract: Devices and methods are described herein that use a first solid figure element, a polarizing beam splitter, and a second solid figure element to reduce speckle in projected images. Specifically, laser light is generated and split into two portions having orthogonal polarizations. The first portion of laser light is internally reflected off at least three internal faces of the second solid figure element and is then spatially recombined with the second portion of laser light in the first solid figure element. The difference in path length followed by the two portions generates a temporal incoherence in the recombined laser light beam, and that temporal incoherence reduces speckle in the projected image.
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