发明授权
- 专利标题: Laser display system with optical feedback configured to reduce speckle artifacts
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申请号: US13100158申请日: 2011-05-03
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公开(公告)号: US08070298B2公开(公告)日: 2011-12-06
- 发明人: Taha Masood
- 申请人: Taha Masood
- 申请人地址: US WA Redmond
- 专利权人: Microvision, Inc.
- 当前专利权人: Microvision, Inc.
- 当前专利权人地址: US WA Redmond
- 代理商 Kevin D. Wills
- 主分类号: G03B21/14
- IPC分类号: G03B21/14 ; G03B21/26 ; G03B21/28 ; G03H1/12 ; H01S3/13 ; H01S5/00
摘要:
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.
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