发明名称 |
Speckle reduction method |
摘要 |
A projection apparatus comprising a light source for projecting an illumination light through an illumination optical system to a spatial light modulator (SLM) for modulating the illumination light for generating and transmitting an image projection light to an image projection surface through a projection optical system to display an image. The projection apparatus further includes an image process unit for receiving and analyzing an input image data; and the image process unit applies a conversion process to a signal related to the input image data to generate different control patterns for a plurality of adjacent pixel elements included in the SLM for a predetermined period during at least one frame period to reproduce a gradation of the pixel whereby each of the plurality of adjacent pixel elements has a gradation of approximately a same level.
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申请公布号 |
US7706048(B2) |
申请公布日期 |
2010.04.27 |
申请号 |
US20080316402 |
申请日期 |
2008.12.11 |
申请人 |
SILICON QUEST KABUSHIKI-KAISHA;OLYMPUS CORPORATION |
发明人 |
HORIKAWA YOSHIAKI;ICHIKAWA HIROTOSHI;ISHII FUSAO |
分类号 |
G02B26/00;G02B26/06;H04N5/74 |
主分类号 |
G02B26/00 |
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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