Invention Grant
- Patent Title: Devices and methods for providing foveated scanning laser image projection with depth mapping
-
Application No.: US15386576Application Date: 2016-12-21
-
Publication No.: US10200683B2Publication Date: 2019-02-05
- Inventor: P. Selvan Viswanathan , Jari Honkanen , Douglas R. Wade , Bin Xue
- Applicant: Microvision, Inc.
- Applicant Address: US WA Redmond
- Assignee: Microvision, Inc.
- Current Assignee: Microvision, Inc.
- Current Assignee Address: US WA Redmond
- Agent Kevin D. Wills
- Main IPC: H04N13/04
- IPC: H04N13/04 ; H04N13/388 ; H04N9/31 ; H04N13/128 ; H04N13/324 ; G01B11/25

Abstract:
Devices and methods are described herein for providing foveated image projection. In general, at least one source of laser light is used to generate a laser beam, and scanning mirror(s) that reflect the laser beam into a pattern of scan lines. The source of light is controlled to selectively generate projected image pixels during a first portion of the pattern of scan lines, and to selectively generate depth mapping pulses during a second portion of the pattern of scan lines. The projected image pixels generate a projected image, while the depth mapping pulses are reflected from the surface, received, and used to generate a 3-dimensional point clouds that describe the measured surface depth at each point. Thus, during each scan of the pattern both a projected image and a surface depth map can be generated, with the surface depth map used to modify some portion of the projected pixels.
Public/Granted literature
- US20180176551A1 Devices and Methods for Providing Foveated Scanning Laser Image Projection with Depth Mapping Public/Granted day:2018-06-21
Information query