发明申请
- 专利标题: Two-dimensional image forming apparatus
- 专利标题(中): 二维图像形成装置
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申请号: US10565390申请日: 2004-07-22
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公开(公告)号: US20060227293A1公开(公告)日: 2006-10-12
- 发明人: Ken'ichi Kasazumi , Kiminori Mizuuchi , Kazuhisa Yamamoto
- 申请人: Ken'ichi Kasazumi , Kiminori Mizuuchi , Kazuhisa Yamamoto
- 申请人地址: JP Kadoma-shi 571-8501
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Kadoma-shi 571-8501
- 优先权: JP2003-277378 20030722
- 国际申请: PCT/JP04/10746 WO 20040722
- 主分类号: G03B21/26
- IPC分类号: G03B21/26
摘要:
A two-dimensional image formation apparatus according to the present invention is provided with laser sources (1a)˜(1c), diffusers (6a)˜(6c) for diffusing light, illumination optical systems for irradiating the diffusers (6a)˜(6c) with lights emitted from the laser sources (1a)˜(1c), diffuser vibration units (13a)˜(13c) for vibrating the diffusers (6a)˜(6c), and spatial light modulators (7a)˜(7c) disposed near the diffusers (6a)˜(6c), for modulating the lights emitted from the laser sources (1a)˜(1c) and diffused by the diffusers (6a)˜(6c), wherein the diffusers (6a)˜(6c) are vibrated by the diffuser vibration units (13a)˜(13c) at a velocity that satisfies a relationship, V>d×30 (millimeters/sec), which is established between the grain size d of the diffusers and the vibration speed V of the diffusers, whereby speckle noise existing in an image projected on a screen (11) can be effectively reduced.
公开/授权文献
- US07271962B2 Two-dimensional image formation apparatus 公开/授权日:2007-09-18
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