Invention Grant
US08257675B2 Artificial quartz member, process for producing the same, and optical element comprising the same
有权
人造石英构件，其制造方法以及包含该人造石英构件的光学元件
- Patent Title: Artificial quartz member, process for producing the same, and optical element comprising the same
- Patent Title (中): 人造石英构件，其制造方法以及包含该人造石英构件的光学元件
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Application No.: US12336017Application Date: 2008-12-16
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Publication No.: US08257675B2Publication Date: 2012-09-04
- Inventor: Noriyuki Agata , Shinya Kikugawa , Yutaka Shimizu , Kazumi Yoshida , Masatoshi Nishimoto
- Applicant: Noriyuki Agata , Shinya Kikugawa , Yutaka Shimizu , Kazumi Yoshida , Masatoshi Nishimoto
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Tokyo Denpa Co., Ltd.,Asahi Glass Company, Limited
- Current Assignee: Tokyo Denpa Co., Ltd.,Asahi Glass Company, Limited
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-167890 20060616
- Main IPC: C01B33/12
- IPC: C01B33/12
Abstract:
An object of the present invention is to provide an artificial quartz member inhibited from suffering the decrease in transmittance in a laser light wavelength region which is caused by long-term irradiation with a laser light having a wavelength of 200 nm or shorter; and a process for producing the artificial quartz member. The invention provides an artificial quartz member for use as an optical element to be irradiated with a laser light having a wavelength of 200 nm or shorter, having an aluminum content of 200 ppb or lower.
Public/Granted literature
- US20090104103A1 ARTIFICIAL QUARTZ MEMBER, PROCESS FOR PRODUCING THE SAME, AND OPTICAL ELEMENT COMPRISING THE SAME Public/Granted day:2009-04-23
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