- 专利标题: COATED GLASS OR GLASS CERAMIC ARTICLE
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申请号: US15445167申请日: 2017-02-28
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公开(公告)号: US20170247289A1公开(公告)日: 2017-08-31
- 发明人: Holger Waldschmidt , Fabian Wagner , Martin Spier
- 申请人: SCHOTT AG
- 申请人地址: DE Mainz
- 专利权人: SCHOTT AG
- 当前专利权人: SCHOTT AG
- 当前专利权人地址: DE Mainz
- 优先权: DE102016103524.6 20160229; DE102016116262.0 20160831
- 主分类号: C03C17/25
- IPC分类号: C03C17/25 ; C03C4/02 ; F21V3/00 ; H05B3/74 ; F21V8/00 ; C03C1/04 ; C03C10/00
摘要:
A method is provided for producing a glass or glass ceramic article that includes: providing a sheet-like glass or glass ceramic substrate having two opposite faces, which in the visible spectral range from 380 nm to 780 nm exhibits light transmittance of at least 1% for visible light that passes from one face to the opposite face; providing an opaque coating on one face where the coating exhibits light transmittance of not more than 5% in the visible spectral range from 380 nm to 780 nm; and directing a pulsed laser beam onto the opaque coating and locally removing the coating by ablation down to the surface of the glass or glass ceramic article, repeatedly at different locations, thereby producing a pattern of a multitude of openings defining a perforated area in the opaque coating, so that the opaque coating becomes semi-transparent in the area.
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