发明名称 |
OPTICAL DIFFRACTION ELEMENT |
摘要 |
An optical diffraction element (1) comprises a diffraction layer (4) which is divided into diffraction strips (6) alternating with intermediate strips (8). The diffraction strips comprise nano-elements (10) which are aligned in one direction and absorb radiation (b) which is linearly polarized in this direction. The diffraction element may be a linear or two-dimensional grating (1) or a Fresnel lens (160). The polarization-sensitive grating can be used in optical systems in which only radiation with a specific polarization direction should be diffracted, or in an optical record carrier to allow reading of an information structure with high spatial frequencies.
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申请公布号 |
KR20060031679(A) |
申请公布日期 |
2006.04.12 |
申请号 |
KR20067000210 |
申请日期 |
2006.01.04 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
KURT RALPH;T HOOFT GERT W.;LIEDENBAUM COEN T. H. F.;HENDRIKS ROBERT F. M. |
分类号 |
G02B26/00;G02B5/18;G02B5/30;G02B26/08;G11B7/135;G11B7/24 |
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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