发明名称 |
DIFFUSING IMAGER AND ASSOCIATED METHODS |
摘要 |
A diffusing function and a lens function are provided on a single surface which is formed from a computer generated hologram including free form regio ns (56) having a phase shift and the hologram being shifted within the free for m regions by the phase shift relative to the hologram outside the free form regions and zero (52) and PI (50) regions are transposed in the free form regions.
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申请公布号 |
CA2329924(C) |
申请公布日期 |
2003.11.11 |
申请号 |
CA19992329924 |
申请日期 |
1999.04.23 |
申请人 |
DIGITAL OPTICS CORPORATION |
发明人 |
FELDMAN, MICHAEL R.;HUTCHINS, ROBERT;WELCH, W. HUDSON |
分类号 |
G02B5/32;G03H1/08;G03H1/28;(IPC1-7):G03H1/08 |
主分类号 |
G02B5/32 |
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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