发明申请
US20110244154A1 METHOD AND CYLINDRICAL SEMI-FINISHED PRODUCT FOR PRODUCING AN OPTICAL COMPONENT
审中-公开
用于生产光学元件的方法和圆柱形半成品
- 专利标题: METHOD AND CYLINDRICAL SEMI-FINISHED PRODUCT FOR PRODUCING AN OPTICAL COMPONENT
- 专利标题(中): 用于生产光学元件的方法和圆柱形半成品
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申请号: US12998596申请日: 2009-10-29
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公开(公告)号: US20110244154A1公开(公告)日: 2011-10-06
- 发明人: Thomas Krause , Martin Trommer
- 申请人: Thomas Krause , Martin Trommer
- 申请人地址: DE Hanau
- 专利权人: Heraeus Quarzglas GmbH & Co KG
- 当前专利权人: Heraeus Quarzglas GmbH & Co KG
- 当前专利权人地址: DE Hanau
- 优先权: DE102008056084.7 20081106
- 国际申请: PCT/EP2009/064269 WO 20091029
- 主分类号: C03B37/014
- IPC分类号: C03B37/014 ; B32B17/02 ; G02B6/036 ; B32B1/08
摘要:
In a known method for producing a dimensionally stable semi-finished product for use in producing fibers from synthetic quartz glass, an SiO2 soot layer is applied to the outer wall of a quartz glass inner cylinder and is subjected to a sintering treatment, wherein a sintering zone moves through the SiO2 soot layer from the outside to the inside. In order to achieve dimensionally accurate and low-deformation production as well as high cost efficiency based on said known method, it is proposed that the sintering treatment be interrupted before the sintering zone reaches the outer wall of the inner cylinder so that an intermediate layer made of synthetic quartz glass containing pores remains at the inner cylinder outer wall. The semi-finished product obtained in such a way is elongated into the optical component, wherein the intermediate layer sinters completely into transparent quartz glass.
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