Invention Grant
US07878205B2 Manufacturing method for QPM wavelength converter elements, QPM wavelength converter element, and medical laser apparatus using it
有权
QPM波长转换元件，QPM波长转换元件和使用它的医用激光装置的制造方法
- Patent Title: Manufacturing method for QPM wavelength converter elements, QPM wavelength converter element, and medical laser apparatus using it
- Patent Title (中): QPM波长转换元件，QPM波长转换元件和使用它的医用激光装置的制造方法
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Application No.: US11905933Application Date: 2007-10-05
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Publication No.: US07878205B2Publication Date: 2011-02-01
- Inventor: Sunao Kurimura , Tsuyoshi Yamada
- Applicant: Sunao Kurimura , Tsuyoshi Yamada
- Applicant Address: JP Tsukuba-shi JP Gamagori-shi
- Assignee: National Institute for Materials Science,Nidek Co., Ltd.
- Current Assignee: National Institute for Materials Science,Nidek Co., Ltd.
- Current Assignee Address: JP Tsukuba-shi JP Gamagori-shi
- Agency: Oliff & Berridge, PLC
- Priority: JP2003-069035 20030314; JP2003-069036 20030314
- Main IPC: A61B19/00
- IPC: A61B19/00 ; G02F1/35
Abstract:
A manufacturing method for quasi phase matching (QPM) wavelength converter elements using crystal quartz as a base material in which twins are periodically induced, comprises a step of periodically inducing the twins by applying a stress onto a crystal quartz substrate as the base material so that an angle θ of a direction in which the stress is applied relative to a Z axis of the crystal quartz is 60°
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