Invention Grant
- Patent Title: High optical quality glass tubing and method of making
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Application No.: US15584357Application Date: 2017-05-02
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Publication No.: US10450214B2Publication Date: 2019-10-22
- Inventor: David John McEnroe , Aniello Mario Palumbo
- Applicant: Corning Incorporated
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: US NY Corning
- Agent Gregory V. Bean
- Main IPC: C03B19/04
- IPC: C03B19/04 ; C03B17/04 ; C03B17/02

Abstract:
A laminated or single layer glass cylinder and its method of making are disclosed. The laminated cylinder glass is a precursor component to enable making subsequent drawn tubing having high optical quality. The laminated cylinder glass may comprise a first layer of glass as a clad glass and a second layer of glass as a core glass. The second layer of glass may be bound to the first layer of glass. The second layer may have a higher CTE from about 5×10−7/° C. to about 100×10−7/° C. than the first layer of glass. The first layer and second layer of glass may have different softening points within about 200° C. of each other. In some embodiments, the first layer and second layer of glass may have different softening points from about 50° C. to about 200° C. of each other.
Public/Granted literature
- US20170355632A1 HIGH OPTICAL QUALITY GLASS TUBING AND METHOD OF MAKING Public/Granted day:2017-12-14
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