Quartz Glass Tube As A Semi-Finished Product For An Optical Component And A Method For Producing Said Quartz Glass Tube
Patent No. EP2804839 (titled "Quartz Glass Tube As A Semi-Finished Product For An Optical Component And A Method For Producing Said Quartz Glass Tube") was filed by Heraeus Quarzglas on Jan 17, 2013. The application was issued on Apr 20, 2016.
Patent Summary
Quartz glass tube for laser-active optical components, comprising a core region with a circular cross-section and a jacket region with a non-circular contact surface surrounding the core, wherein the jacket region has a refractive index differing from the core region. The tube is produced by elongating a mother pipe comprising a first quartz glass core region and a second quartz glass jacket region with a non-circular contact surface, without using tools or cutting parts.
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EP2804839
- Application Number
- EP13700567A
- Filing Date
- Jan 17, 2013
- Status
- No Opposition Filed Within Time Limit
- Feb 24, 2017
- Publication Date
- Apr 20, 2016
- External Links
- Slate, Register , Google Patents