JP2013075780A - 赤外q値を評価し等級分けした水晶片 - Google Patents
赤外q値を評価し等級分けした水晶片 Download PDFInfo
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Abstract
【解決手段】人工水晶原石を所定のα値別に複数種類準備し、不純物元素の含有濃度をX軸にα値、Y軸に測定された該含有濃度をそれぞれ前記所定の不純物元素毎にプロットして、不純物濃度との相関関係を示す検量線を準備する工程と、測定された前記水晶片に含有される前記所定の複数の所定の不純物濃度を、それぞれ前記検量線と対照して前記水晶片のα値を推定する工程と、前記α値をJISに規定する等級と対照させて赤外Q値を評価する工程と、から赤外Q値を評価し等級分けしたことを特徴とする水晶片。
【選択図】図1
Description
Q:Q値
X:水晶の電気軸
Z:水晶の光学軸
Claims (5)
- 人工水晶原石を所定のα値別に複数種類準備し、該複数の人工水晶原石に含有される複数の所定の不純物元素の含有濃度を所定の分析法により測定し、X軸にα値、Y軸に測定された該含有濃度をそれぞれ前記所定の不純物元素毎にプロットして、前記α値と前記測定された不純物濃度との相関関係を示す検量線を準備する工程と、
評価したい水晶片に含有される前記複数の所定の不純物濃度を所定の分析法により測定する工程と、
測定された前記水晶片に含有される前記所定の複数の所定の不純物濃度をそれぞれ前記検量線と対照して前記水晶片のα値を推定する工程と、
前記α値をJISに規定する等級と対照させて赤外Q値を評価する工程と、から赤外Q値を評価し等級分けしたことを特徴とする水晶片。 - 前記JISに規定する等級と対照させるα値として、前記推定した複数のα値の平均値を用いることを特徴とする請求項1に記載の水晶片。
- 前記複数の所定の不純物元素が、Al,Na及びLiであることを特徴とする請求項1に記載の水晶片。
- 前記所定の分析方法が、ICP質量分析法、フレームレス原子吸光分析法及び二次イオン質量分析法であることを特徴とする請求項1に記載の水晶片。
- 前記水晶片が、人工水晶原石のZ領域またはX領域から切り出されることを特徴とする請求項1に記載の水晶片。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020012733A1 (ja) * | 2018-07-09 | 2020-01-16 | 株式会社村田製作所 | 人工水晶部材及びそれを用いた光学素子 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01230500A (ja) * | 1988-03-11 | 1989-09-13 | Nippon Telegr & Teleph Corp <Ntt> | 水晶のスィーピング方法 |
JP2001089297A (ja) * | 1999-09-24 | 2001-04-03 | Meidensha Corp | 人工水晶育成方法 |
WO2005005694A1 (ja) * | 2003-07-10 | 2005-01-20 | Nikon Corporation | 人工水晶部材、露光装置、及び露光装置の製造方法 |
JP2009132592A (ja) * | 2007-11-03 | 2009-06-18 | Nippon Dempa Kogyo Co Ltd | 光学部材用人工水晶の製造方法、光学部材用人工水晶、耐放射線人工水晶の製造方法及び耐放射線人工水晶 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01230500A (ja) * | 1988-03-11 | 1989-09-13 | Nippon Telegr & Teleph Corp <Ntt> | 水晶のスィーピング方法 |
JP2001089297A (ja) * | 1999-09-24 | 2001-04-03 | Meidensha Corp | 人工水晶育成方法 |
WO2005005694A1 (ja) * | 2003-07-10 | 2005-01-20 | Nikon Corporation | 人工水晶部材、露光装置、及び露光装置の製造方法 |
JP2009132592A (ja) * | 2007-11-03 | 2009-06-18 | Nippon Dempa Kogyo Co Ltd | 光学部材用人工水晶の製造方法、光学部材用人工水晶、耐放射線人工水晶の製造方法及び耐放射線人工水晶 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020012733A1 (ja) * | 2018-07-09 | 2020-01-16 | 株式会社村田製作所 | 人工水晶部材及びそれを用いた光学素子 |
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