发明授权
- 专利标题： A METHOD FOR MANUFACTURING AN OPTICAL PREFORM
- 专利标题（中）： 方法用于制造光学预制件
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申请号： EP15165043.9申请日： 2015-04-24
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公开(公告)号： EP2947055B1公开(公告)日： 2016-12-21
- 发明人: Milicevic, Igor , Krabshuis, Gertjan , Gerharts, Peter , Hartsuiker, Johannes Antoon , van Stralen, Mattheus Jacobus Nicolaas
- 申请人： Draka Comteq B.V.
- 申请人地址： De Boelelaan 7 1083 HJ Amsterdam NL
- 专利权人： Draka Comteq B.V.
- 当前专利权人： Draka Comteq B.V.
- 当前专利权人地址： De Boelelaan 7 1083 HJ Amsterdam NL
- 代理机构： Algemeen Octrooi- en Merkenbureau B.V.
- 优先权： NL2012868 20140522
- 主分类号： C03B37/012
- IPC分类号： C03B37/012 ; C03B37/018 ; C03B37/07
摘要：
A method for manufacturing an optical preform comprising the steps of providing a substrate tube having deposited layers of glass on the inside surface thereof, increasing an outer diameter of the substrate tube by heating the substrate tube to above its softening temperature and by providing an internal pressure in the substrate tube higher than an ambient pressure, and collapsing the substrate tube by means of applying a traversing heat source to heat the substrate tube to above its softening temperature such that an optical preform is manufactured.
公开/授权文献
- EP2947055A1 A METHOD FOR MANUFACTURING AN OPTICAL PREFORM 公开/授权日：2015-11-25
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