发明申请
US20090090136A1 METHOD OF MAKING LOW-TEMPERATURE OPTICAL GLASS FIBERS FREE OF DEFECTS
审中-公开
制造低温光学玻璃纤维的方法无缺陷
- 专利标题： METHOD OF MAKING LOW-TEMPERATURE OPTICAL GLASS FIBERS FREE OF DEFECTS
- 专利标题（中）： 制造低温光学玻璃纤维的方法无缺陷
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申请号： US12241461申请日： 2008-09-30
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公开(公告)号： US20090090136A1公开(公告)日： 2009-04-09
- 发明人: Dahn C. Tran
- 申请人： Dahn C. Tran
- 申请人地址： US MD Silver Spring
- 专利权人： INFRARED FOCAL SYSTEMS, INC.
- 当前专利权人： INFRARED FOCAL SYSTEMS, INC.
- 当前专利权人地址： US MD Silver Spring
- 主分类号： C03B37/023
- IPC分类号： C03B37/023 ; C03C25/10
摘要：
A method of molding low-temperature glass into a preform for formation by drawing into glass fiber, especially for transmission of mid-IR, involves casting a cladding glass into a mold cavity in the shape of the desired preform to form a cladding layer, and forming a glass core within the cladding layer, wherein the molten cladding glass is drained from the bottom of the mold cavity, forming an annular coating of cladding glass as an annular layer, and the core glass is quickly added within the annular cladding layer to form the glass core with the cladding layer thereabout.