Invention Grant
- Patent Title: LED pattern projector for 3D camera platforms
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Application No.: US16024024Application Date: 2018-06-29
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Publication No.: US10310362B2Publication Date: 2019-06-04
- Inventor: Anders Grunnet-Jepsen , John Sweetser , Akihiro Takagi , Paul Winer , John Woodfill
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Green, Howard & Mughal LLP.
- Main IPC: G03B21/20
- IPC: G03B21/20 ; H04N5/74 ; G03B21/00 ; G02B27/09

Abstract:
A light pattern projector with a pattern mask to spatially modulate an intensity of a wideband illumination source, such as an LED, and a projector lens to reimage the spatially modulated emission onto regions of a scene that is to be captured with an image sensor. The projector lens may comprise a microlens array (MLA) including a first lenslet to reimage the spatially modulated emission onto a first portion of a scene, and a second lenslet to reimage the spatially modulated emission onto a first portion of a scene. The MLA may have a fly's eye architecture with convex curvature over a diameter of the projector lens in addition to the lenslet curvature. The pattern mask may be an amplitude mask comprising a mask pattern of high and low amplitude transmittance regions. In the alternative, the pattern mask may be a phase mask, such as a refractive or diffractive mask.
Public/Granted literature
- US20190041736A1 LED PATTERN PROJECTOR FOR 3D CAMERA PLATFORMS Public/Granted day:2019-02-07
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