| 发明名称 |
METHOD AND APPARATUS FOR FABRICATING GRIN LENS ELEMENTS BY SPIN MOLDING. |
| 摘要 |
A method and apparatus for producing a plastic lens element having a gradient index of refraction is disclosed in which first and second monomer-containing compositions, each having a different index of refraction, are injected into a centrifugal mold. Precise control of the gradient index is achieved by varying the ratio of the two monomers over a predetermined number of steps during the filling process. |
| 申请公布号 |
EP0513315(B1) |
申请公布日期 |
1995.03.01 |
| 申请号 |
EP19920901057 |
申请日期 |
1991.11.26 |
| 申请人 |
EASTMAN KODAK COMPANY |
发明人 |
BELLO, JAMES, LEE;HAMBLEN, DAVID, P. |
| 分类号 |
B29C39/02;B01F13/00;B01F15/04;B29C39/24;B29C39/44;B29C41/04;B29C41/52;B29C65/48;B29D11/00;B29K105/32;B29L11/00;G02B1/04;(IPC1-7):B29D11/00 |
主分类号 |
B29C39/02 |
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