发明名称 |
METHOD FOR PRODUCING AN OPTICAL ROD-SHAPED GRADED-INDEX POLYMER PREFORM, PREFORM OBTAINED IN ACCORDANCE WITH THIS METHOD AND OPTICAL LENS AND OPTICAL FIBRE OBTAINED BY USING SAME |
摘要 |
A method for producing optical rod-shaped graded-index polymer preform by making the composition of the preform near the core differ from the composition of the shell of the preform by polymerization with rotation of a mixture containing the starting substances, whereby a mixture comprising various monomers is rotated and that after achieving a distribution of the monomers, the polymerization is carried out with rotation of the mixture, or that a monomer and thermoplastic polymer-containing mixture, whereby said monomer is different from the monomer from which said polymer has been prepared, is rotated and that, after achieving a distribution of said monomer and polymer, the monomer present in said mixture is subsequently polymerized with rotation, in which both cases the rotation is carried out with a diameter dependent rotation velocity, represented by the following general equation: rpm > 10,000 d<-0.5> wherein: rpm = rotation velocity, revolutions per minute d = diameter of the preform (cm). The invention furthermore relates to optical lenses and fibres formed of the polymer preform thus produced.
|
申请公布号 |
WO9729903(A1) |
申请公布日期 |
1997.08.21 |
申请号 |
WO1997NL00055 |
申请日期 |
1997.02.12 |
申请人 |
TECHNISCHE UNIVERSITEIT EINDHOVEN;VAN DUIJNHOVEN, FRANCISCUS, GERARDUS, HENRICUS;BASTIAANSEN, CORNELIS, WILHELMUS, MARIA |
发明人 |
VAN DUIJNHOVEN, FRANCISCUS, GERARDUS, HENRICUS;BASTIAANSEN, CORNELIS, WILHELMUS, MARIA |
分类号 |
G02B6/00;B29C41/00;B29C41/04;B29D11/00;C08F2/00;C08F20/22;D01F6/36;G02B1/04;G02B3/00;G02B6/028;(IPC1-7):B29D11/00 |
主分类号 |
G02B6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|