发明名称 |
RETROREFLECTIVE SHEETING AND LICENSE PLATE WITH REDUCED RETROREFLECTIVITY AT HIGH ENTRANCE ANGLES |
摘要 |
The present application relates to retroreflective sheeting that is capable of use in a license plate and that can be accurately read and/or detected by an ALPR system. The retroreflective sheeting is a microsphere-based retroreflective sheeting that provides reduced retroreflectivity at high entrance angles. The retroreflective sheeting can also be a microsphere-based retroreflective sheeting that exhibits reduced retroreflectivity of incident infra-red light from high entrance angles and substantially unaffected retroreflectivity of incident visible light from entrance angles in the vicinity of the normal. |
申请公布号 |
US2012200709(A1) |
申请公布日期 |
2012.08.09 |
申请号 |
US201013502056 |
申请日期 |
2010.10.12 |
申请人 |
NAKAJIMA TOSHITAKA;YOKOYAMA MASAMI;MURAMOTO AKIRA;ORENSTEEN BRUCE D. |
发明人 |
NAKAJIMA TOSHITAKA;YOKOYAMA MASAMI;MURAMOTO AKIRA;ORENSTEEN BRUCE D. |
分类号 |
G02B5/128;H04N7/18 |
主分类号 |
G02B5/128 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|