| 发明名称 |
MICROSPERE-BASED RETROREFLECTIVE ARTICLES WITH ENHANCED RETROREFLECTIVE BRIGHTNESS |
| 摘要 |
Microsphere-based retroreflective articles having exceptionally high retroreflective brightness, particularly at divergence angles of up to 0.5 DEG may be made by selection of microspheres having defined combinations of average diameter and average refractive index. |
| 申请公布号 |
AU5483090(A) |
申请公布日期 |
1990.11.29 |
| 申请号 |
AU19900054830 |
申请日期 |
1990.05.08 |
| 申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
CLARK GLAMIS KUNEY JR. |
| 分类号 |
E01F9/04;G02B5/128;G02B5/136 |
主分类号 |
E01F9/04 |
| 代理机构 |
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