Invention Grant
US07993012B2 Laser display system with optical feedback configured to reduce speckle artifacts
有权
配有光学反馈的激光显示系统，可减少斑点伪影
- Patent Title: Laser display system with optical feedback configured to reduce speckle artifacts
- Patent Title (中): 配有光学反馈的激光显示系统，可减少斑点伪影
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Application No.: US12241597Application Date: 2008-09-30
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Publication No.: US07993012B2Publication Date: 2011-08-09
- Inventor: Taha Masood
- Applicant: Taha Masood
- Applicant Address: US WA Redmond
- Assignee: Microvision, Inc.
- Current Assignee: Microvision, Inc.
- Current Assignee Address: US WA Redmond
- Agent Kevin D. Wills
- Main IPC: G03B21/14
- IPC: G03B21/14 ; G03B21/26 ; G03B21/28 ; G03H1/12 ; H01S3/13 ; H01S3/00 ; H01S5/00
Abstract:
An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.
Public/Granted literature
- US20100080253A1 Laser Display System with Optical Feedback Configured to Reduce Speckle Artifacts Public/Granted day:2010-04-01
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