发明名称 |
Illumination system to eliminate laser speckle and projection system employing the same |
摘要 |
An illumination system designed to remove laser speckle and a projection system including the same. The illumination system includes a laser light source having at least one laser, a diffractive optical element to divide a laser beam emitted from the laser light source into a plurality of sub-beams and to periodically move in such a way as to temporally average the speckle of the laser beam, and an optical fiber bundle including a plurality of fibers with the same length to divide the sub-beams into smaller sub-beams. The illumination system divides the laser beam emitted from the laser light source into sub-beams and temporally or spatially averages the sub-beams, thereby effectively reducing or removing laser speckle. The projection system employing the illumination system can provide improved image quality.
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申请公布号 |
US7527384(B2) |
申请公布日期 |
2009.05.05 |
申请号 |
US20050257018 |
申请日期 |
2005.10.25 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD |
发明人 |
KIM SUNG-HA;DHO SANG-WHOE |
分类号 |
G03B21/14 |
主分类号 |
G03B21/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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