| 发明名称 |
PROJECTION SCREENS AND METHODS FOR MAKING SUCH PROJECTION SCREENS |
| 摘要 |
Projection screens and convenient and efficient methods of making such projection screens are provided. Recycled glass is reformed to provide glass microspheres of sufficient quality for use in a projection screen. |
| 申请公布号 |
WO02079873(A2) |
申请公布日期 |
2002.10.10 |
| 申请号 |
WO2002US01499 |
申请日期 |
2002.01.16 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
STEVENSON, JAMES, A.;MORRIS, GEOFFREY, P. |
| 分类号 |
G03B21/62;C03B19/10;G03B21/60 |
主分类号 |
G03B21/62 |
| 代理机构 |
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代理人 |
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| 地址 |
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