发明名称 |
CONVERGING LIGHT TRANSMITTING BODY OF HIGH PERFORMANCE AND PROCESS FOR PRODUCTION THEREOF |
摘要 |
<p>Title of the Invention CONVERGING LIGHT TRANSMITTING BODY OF HIGH PERFORMANCE AND PROCESS FOR PRODUCTION THEREOF The present invention provides a converging light transmitting glass body whose refractive index gradually changes from its central portion to its surface in a direction transverse to a path of light, said glass body containing at least three cations constituting modifying oxides of the glass, a first and a second cation among said cations showing concentration changes of converse gradients from its central portion toward its peripheral surface, and a third cation showing no substantial concentration change at the central portion of the glass body but showing a substantial continuous concentration charge outwardly thereof toward its peripheral surface. The present invention also provides a process for producing the light transmitting glass body which comprises contacting a glass body containing a modifying oxide of a first cation with an ion source containing the second cation to produce a pre-produced glass body, and then contacting the pre-produced glass body with an ion source containing the third cation, or which comprises contacting a glass body containing a modifying oxide of a first cation with an ion source containing a second cation and a third cation. The converting light transmitting glass body of the present invention has an ideal refeactive index distribution.</p> |
申请公布号 |
CA1195540(A) |
申请公布日期 |
1985.10.22 |
申请号 |
CA19810383510 |
申请日期 |
1981.08.10 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
SHIMIZU, MASAYOSHI;YAMAGISHI, TAKASHI;NOGUCHI, YUKIO |
分类号 |
C03C21/00;G02B1/10;G02B3/00;G02B6/00;(IPC1-7):G02B6/00;G02B6/04 |
主分类号 |
C03C21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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