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公开(公告)号：US20220413154A1
公开(公告)日：2022-12-29
申请号：US17846029
申请日：2022-06-22
发明人： Ming-Shu Hsiao
IPC分类号： G01S17/894 , G02B3/00 , G02B27/30 , G01S7/481
摘要： A line pattern projector includes a light source array, a lens and a diffractive microlens array. The light source array includes a plurality of light sources that emit light beams, wherein the plurality of light sources are arranged along a first direction. The lens is configured to collimate the light beams. The diffractive microlens array (MLA) is configured to diffract the collimated light beams thereby to project an illumination pattern, wherein a lens pitch of the diffractive MLA with respect to the first direction is wider than a lens pitch of the diffractive MLA with respect to a second direction. The illumination pattern is formed by overlapping multiple dot patterns that are projected by the light sources; and the illumination pattern includes a plurality of line light patterns in the first direction.
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公开(公告)号：US10754167B2
公开(公告)日：2020-08-25
申请号：US16035337
申请日：2018-07-13
发明人： Cheng-Hung Chi , Ming-Shu Hsiao
摘要： A structured-light projector includes a light source that emits an emitted light with a predetermined pattern; and a diffractive optical element (DOE) that directly receives the emitted light and generates a plurality of light tiles, which are randomly or regularly disposed.
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公开(公告)号：US20200041809A1
公开(公告)日：2020-02-06
申请号：US16049818
申请日：2018-07-31
发明人： Ming-Shu Hsiao , Yi-Nung Liu
IPC分类号： G02B27/42 , G02B27/00 , H04N13/207 , G02B5/18 , G02B27/22 , H04N13/254
摘要： A structured light projector including a light source, an irradiation range controlling device, and a diffractive optical element is provided. The irradiation range controlling device is disposed on a transmission path of a light beam from the light source. The diffractive optical element is disposed on a transmission path of the light beam from the irradiation range controlling device. The irradiation range controlling device is adapted to control an irradiation range of the light beam transmitted to the diffractive optical element so as to change a size of a region of the diffractive optical element illuminated by the light beam from the irradiation range controlling device. A three-dimensional image sensing module using the same is also provided.
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公开(公告)号：US11979548B2
公开(公告)日：2024-05-07
申请号：US17658444
申请日：2022-04-08
发明人： Ming-Shu Hsiao
IPC分类号： H04N13/254 , H04N9/31
CPC分类号： H04N13/254 , H04N9/3152 , H04N9/3161
摘要： A structured light projector is disclosed, which includes a first light source, a second light source, an optical refractive element and an optical shaper. The first light source and the second light source are configured to respectively emit first incoherent light and second incoherent light. The optical refractive element is arranged over the first and second light sources for refracting the first incoherent light and the second incoherent light. The optical shaper element is arranged over the optical refractive element for shaping the first incoherent light to generate first structured light with plural first optical patterns and shaping the second incoherent light to generate second structured light with plural second optical patterns, in which the first structured light and the second structured light are overlapped onto a region of space.
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公开(公告)号：US11067820B2
公开(公告)日：2021-07-20
申请号：US16049818
申请日：2018-07-31
发明人： Ming-Shu Hsiao , Yi-Nung Liu
IPC分类号： G02B27/42 , G02B27/00 , H04N13/254 , G02B5/18 , H04N13/207 , G02B30/00 , G06T7/521
摘要： A structured light projector including a light source, an irradiation range controlling device, and a diffractive optical element is provided. The irradiation range controlling device is disposed on a transmission path of a light beam from the light source. The diffractive optical element is disposed on a transmission path of the light beam from the irradiation range controlling device. The irradiation range controlling device is adapted to control an irradiation range of the light beam transmitted to the diffractive optical element so as to change a size of a region of the diffractive optical element illuminated by the light beam from the irradiation range controlling device. A three-dimensional image sensing module using the same is also provided.
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公开(公告)号：US11543696B2
公开(公告)日：2023-01-03
申请号：US16516236
申请日：2019-07-18
发明人： Hung-Shan Chen , Ming-Syuan Chen , Ming-Shu Hsiao , Cheng-Hung Chi , Kuan-Ming Chen , Chin-Jung Tsai , Yi-Nung Liu
IPC分类号： G02F1/1335 , G02F1/1333
摘要： A liquid crystal element includes a substrate, a diffractive optical element layer, and a liquid crystal material. The diffractive optical element layer has an uneven surface. The liquid crystal material is between the substrate and the uneven surface of the diffractive optical element layer. The liquid crystal material is disposed contiguously with the uneven surface of the diffractive optical element layer.
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公开(公告)号：US10977775B2
公开(公告)日：2021-04-13
申请号：US16504308
申请日：2019-07-07
发明人： Chin-Jung Tsai , Yu-Hsuan Chu , Cheng-Hung Chi , Ming-Shu Hsiao , Nai-Ting Chang , Yi-Nung Liu
摘要： A depth decoding system and a method for rectifying a ground-truth image are introduced. The depth decoder system includes a projector, a camera, a processor and a decoder. The projector is configured to project a structural light pattern to a first reference plane and a second reference plane. The camera is configured to capture a first ground-truth image from the first reference plane and capture a second ground-truth image from the second reference plane. The processor is configured to perform a rectification operation to the first ground-truth image and the second ground-truth image to generate a rectified ground-truth image. The decoder is configured to generate a depth result according to the rectified ground-truth image.
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公开(公告)号：US20190086681A1
公开(公告)日：2019-03-21
申请号：US16035337
申请日：2018-07-13
发明人： Cheng-Hung Chi , Ming-Shu Hsiao
摘要： A structured-light projector includes a light source that emits an emitted light with a predetermined pattern; and a diffractive optical element (DOE) that directly receives the emitted light and generates a plurality of light tiles, which are randomly or regularly disposed.
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公开(公告)号：US20220412729A1
公开(公告)日：2022-12-29
申请号：US17358011
申请日：2021-06-25
发明人： Ming-Shu Hsiao
IPC分类号： G01B11/25 , H04N13/254
摘要： A dot pattern projector includes a light source array, a lens and a diffracting unit. The light source array includes a plurality of light sources that emit light beams. The lens is configured to collimate the light beams. The diffracting unit is configured to diffract the collimated light beams thereby to project an illumination pattern, wherein the illumination pattern is formed by overlapping multiple dot patterns that are projected by different light sources or interlacing multiple dot patterns that are projected by different light sources.
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公开(公告)号：US20200184611A1
公开(公告)日：2020-06-11
申请号：US16504308
申请日：2019-07-07
发明人： Chin-Jung Tsai , Yu-Hsuan Chu , Cheng-Hung Chi , Ming-Shu Hsiao , Nai-Ting Chang , Yi-Nung Liu
摘要： A depth decoding system and a method for rectifying a ground-truth image are introduced. The depth decoder system includes a projector, a camera, a processor and a decoder. The projector is configured to project a structural light pattern to a first reference plane and a second reference plane. The camera is configured to capture a first ground-truth image from the first reference plane and capture a second ground-truth image from the second reference plane. The processor is configured to perform a rectification operation to the first ground-truth image and the second ground-truth image to generate a rectified ground-truth image. The decoder is configured to generate a depth result according to the rectified ground-truth image.
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