Invention Grant
- Patent Title: Wavelength conversion method, wavelength conversion device, and laser beam machine
- Patent Title (中): 波长转换方法，波长转换装置和激光束机
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Application No.: US10511170Application Date: 2001-12-12
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Publication No.: US07142354B2Publication Date: 2006-11-28
- Inventor: Tetsuo Kojima , Susumu Konno , Shuichi Fujikawa , Koji Yasui , Takatomo Sasaki , Yusuke Mori , Masashi Yoshimura
- Applicant: Tetsuo Kojima , Susumu Konno , Shuichi Fujikawa , Koji Yasui , Takatomo Sasaki , Yusuke Mori , Masashi Yoshimura
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: JP2000-379925 20001214; WOPCT/JP01/07585 20010903
- International Application: PCT/JP01/10905 WO 20011212
- International Announcement: WO02/48786 WO 20020620
- Main IPC: G02F1/35
- IPC: G02F1/35 ; H01S3/108
Abstract:
In a wavelength converting method, an ambient that is in contact with a surface of a non-linear optical crystal from which wavelength-converted light is outputted is a gas that is lower in content of nitrogen than air. A wavelength converting device includes a device for controlling the ambient in contact with a surface of the non-linear optical crystal from which the wavelength-converted light is outputted so the ambient is lower in nitrogen than air. A laser machining device includes the wavelength converting device.
Public/Granted literature
- US20050225837A1 Wavelength conversion method, wavelength conversion device, and laser beam machine Public/Granted day:2005-10-13
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