发明名称 |
Stereoscopic illumination system for retroreflective materials |
摘要 |
A system and method of illuminating a portable object even when the object is otherwise well illuminated by ambient light. Retroreflective material is provided on the exterior of the portable object. The retroreflective material may be pigmented to absorb most light and reflects only light within a predetermined frequency range. An illumination assembly is provided that contains a first light source and a second light source. The first light source and the second light source are positioned a short distance apart so that they produce stereoscopic beams of light. Each of the stereoscopic beams of light is monochromatic. Furthermore, the frequency of each of the stereoscopic beams of light falls within the predetermined frequency range. When the stereoscopic beams of light strike the retroreflective material, it shines even in bright ambient light.
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申请公布号 |
US8550649(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US20100786769 |
申请日期 |
2010.05.25 |
申请人 |
NELSON WEBB T.;CHERNICK MARK J. |
发明人 |
NELSON WEBB T.;CHERNICK MARK J. |
分类号 |
F21V21/084 |
主分类号 |
F21V21/084 |
代理机构 |
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