发明名称 |
COMBINATION SPECULAR AND DIFFUSE IMAGE CHMSL |
摘要 |
A hologram structure for use in a holographic center high mounted stoplight system for a vehicle. The hologram structure includes an illumination source (30) for providing a reconstruction beam, a first array (31) of non-overlapping hologram cells and non-hologram cells, and a second array (32) of non-overlapping hologram and non-hologram cells. Each hologram cell of the first array produces a specular image that is viewable in a first predetermined angular field pursuant to diffraction of a portion of the reconstruction beam, and each hologram cell of the second array produces a diffuse image that is viewable in a second predetermined angular field pursuant to diffraction of a portion of the reconstruction beam. The specular images and diffuse images produced by the first and second holograms form stoplight illumination. |
申请公布号 |
CA2135940(C) |
申请公布日期 |
1998.09.22 |
申请号 |
CA19942135940 |
申请日期 |
1994.11.16 |
申请人 |
HUGHES AIRCRAFT COMPANY |
发明人 |
WREEDE, JOHN E.;VIRGADAMO, MICHAEL J.;UPPER, RICHARD B.;SMITH, RONALD T. |
分类号 |
G02B5/32;B60Q1/30;B60Q1/44;G03H1/26 |
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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