| 发明名称 |
PRODUCTION OF PHOTO SELFFCONVERGENT TYPE ELEMENT |
| 摘要 |
PURPOSE:To facilitate controlling of refractive indices by forming transparent resins of subsequently increasing refractive index ratios from the inner side of a plastic pipe toward the center thereby providing a refractive index gradient. |
| 申请公布号 |
JPS545743(A) |
申请公布日期 |
1979.01.17 |
| 申请号 |
JP19770070485 |
申请日期 |
1977.06.16 |
| 申请人 |
OKI ELECTRIC IND CO LTD |
发明人 |
SATOU TOYOSAKU;WATANABE NOZOMI |
| 分类号 |
G02B6/00;B29C41/00;B29C61/00;B29D11/00 |
主分类号 |
G02B6/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
