发明授权
- 专利标题: Apparatus for producing synthetic quartz glass
- 专利标题(中): 用于生产合成石英玻璃的设备
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申请号: US10161433申请日: 2002-05-30
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公开(公告)号: US06920766B2公开(公告)日: 2005-07-26
- 发明人: Frank Coriand , Andreas Menzel , Andreas Voitsch
- 申请人: Frank Coriand , Andreas Menzel , Andreas Voitsch
- 申请人地址: DE Jena
- 专利权人: Schott ML GmbH
- 当前专利权人: Schott ML GmbH
- 当前专利权人地址: DE Jena
- 代理机构: Jordan and Hamburg LLP
- 优先权: DE19709379 19970307
- 主分类号: G02B1/00
- IPC分类号: G02B1/00 ; C03B8/04 ; C03B19/14 ; C03B20/00 ; C03C3/06 ; C03C4/00 ; C03B19/06
摘要:
A synthetic quartz glass preform is produced by flame hydrolysis with subsequent cooling and is suitable for the application of high-energy DUV radiation in the wave length range under 250 nm. The preform has a core area which contains ≧1150 ppm OH, a strain double refraction of ≦5 nm/cm and a resistance to high-energy DUV radiation as a result of a transmission reduction of ΔT ≦0.1%/cm thickness. The quartz glass has been exposed to the following radiation: wavelength λ1=248 nm, laser shot frequency ≧300 Hz, laser shot value ≧109 and lumination ≦10 mJ/cm2, and wavelength λ2=193 nm, laser shot frequency ≧300 Hz, laser shot value ≧109 and lumination
公开/授权文献
信息查询
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B1/00 | 按制造材料区分的光学元件;用于光学元件的光学涂层 |