发明名称 |
Enhanced raster scanning assembly |
摘要 |
An optical assembly utilizing a novel optical element. The assembly includes a tunable source of input radiation; an optical element that can receive at least a portion of the input radiation and comprises a manifold having at least two independent surfaces, in which at least a portion of each independent surface is selected from the group consisting of a reflective structure and a diffractive structure, and the independent surfaces are geometrically configured so that a portion of incident radiation to the manifold is diffracted at least twice in an angular sense that can increase a tuning sensitivity of an angular deviation of the incident radiation exiting the manifold; and, a scanner means which can accept and redirect a portion of the radiation output by the optical element for producing an illumination pattern.
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申请公布号 |
US6057947(A) |
申请公布日期 |
2000.05.02 |
申请号 |
US19970999579 |
申请日期 |
1997.12.24 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HOBBS, PHILIP CHARLES DANBY;VAN KESSEL, THEORDORE G. |
分类号 |
G02B5/18;G02B26/10;H04N1/028;H04N1/04;(IPC1-7):G02B5/32 |
主分类号 |
G02B5/18 |
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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