发明名称 |
Method and apparatus for making globular bodies of optical quality from viscous glass |
摘要 |
The method of making globular or spherical bodies of optical quality includes filling receptacles (2) in a heat-resistant support (3) made of a porous material with glass gobs (1); conducting gas through the heat-resistant support so that a gas flow (4) passes through the support in a direction (14) opposite to a direction in which gravity acts; heating the heat-resistant support (3) to a temperature at which the glass gobs (1) have a viscosity of up to about 10<6 >poise; maintaining the support (3) at this temperature for a predetermined time interval; and then cooling the support (3) to ambient temperature while continuing to provide the gas flow (4) through the support (3).
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申请公布号 |
US2004163413(A1) |
申请公布日期 |
2004.08.26 |
申请号 |
US20040770311 |
申请日期 |
2004.02.02 |
申请人 |
LANGSDORF ANDREAS;BUELLESFELD FRANK |
发明人 |
LANGSDORF ANDREAS;BUELLESFELD FRANK |
分类号 |
G02B3/00;C03B19/10;C03B40/04;(IPC1-7):C03B40/02 |
主分类号 |
G02B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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