Structured light sensing for 3D sensing

    公开(公告)号:US10168147B2

    公开(公告)日:2019-01-01

    申请号:US15502948

    申请日:2015-08-10

    Applicant: Facebook, Inc.

    Abstract: Apparatus for structured light scanning. The structured light includes one or more projected lines or other patterns. At least two independent emitters emit light for each projected line or pattern. Typically the at least two independent emitters are arranged in a row. The apparatus also includes a pattern generator for causing light from respective emitters of a given row to overlap along a pattern axis to form a projected pattern.

    THREE DIMENSIONAL DEPTH MAPPING USING DYNAMIC STRUCTURED LIGHT

    公开(公告)号:US20180324412A1

    公开(公告)日:2018-11-08

    申请号:US16032304

    申请日:2018-07-11

    Applicant: Facebook, Inc.

    Abstract: Apparatus for generating a dynamic structured light pattern for optical tracking in three-dimensional space, comprises an array of lasers, such as a VCSEL laser array, to project light in a pattern into a three-dimensional space; and an optical element or elements arranged in cells. The cells are aligned with subsets of the laser array, and each cell individually applies a modulation, in particular an intensity modulation, to light from the laser or lasers of the subset, to provide a distinguishable and separately controllable part of the dynamic structured light pattern. A method of generating a structured light pattern is disclosed, in which light is provided from an array of lasers, and light is individually projected from subsets of the array of lasers to provide differentiated parts of the structured light pattern.

    Three dimensional depth mapping using dynamic structured light

    公开(公告)号:US10051260B2

    公开(公告)日:2018-08-14

    申请号:US15030851

    申请日:2014-10-23

    Applicant: Facebook, Inc.

    Abstract: Apparatus for generating a dynamic structured light pattern for optical tracking in three-dimensional space, comprises an array of lasers, such as a VCSEL laser array, to project light in a pattern into a three-dimensional space; and an optical element or elements arranged in cells. The cells are aligned with subsets of the laser array, and each cell individually applies a modulation, in particular an intensity modulation, to light from the laser or lasers of the subset, to provide a distinguishable and separately controllable part of the dynamic structured light pattern. A method of generating a structured light pattern is disclosed, in which light is provided from an array of lasers, and light is individually projected from subsets of the array of lasers to provide differentiated parts of the structured light pattern.

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