JP2017019696A5 - - Google Patents

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JP2017019696A5
JP2017019696A5 JP2015138978A JP2015138978A JP2017019696A5 JP 2017019696 A5 JP2017019696 A5 JP 2017019696A5 JP 2015138978 A JP2015138978 A JP 2015138978A JP 2015138978 A JP2015138978 A JP 2015138978A JP 2017019696 A5 JP2017019696 A5 JP 2017019696A5
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optical glass
mass
optical
glass according
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JP2015138978A
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Japanese (ja)
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JP6663177B2 (en
JP2017019696A (en
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酸化物換算組成の質量％で、Ｂ２Ｏ３成分を５．０％〜３０．０％、Ｌｎ２Ｏ３成分を２５．０〜５０．０％（式中、ＬｎはＬａ、Ｇｄ、Ｙ、Ｙｂからなる群より選択される１種以上）、Ｎｂ２Ｏ５成分を５．０〜３５．０％、質量比（ＴｉＯ２＋Ｂ２Ｏ３）／（ＷＯ３＋Ｎｂ２Ｏ５）が０超〜１．５含有し、屈折率が１．８８〜２．００であり、アッベ数が２５〜３８であることを特徴とする光学ガラス。 Terms of% by mass on the oxide composition in terms of, B 2 O 3 ingredient 5.0% to 30.0%, from 25.0 to 50.0% of Ln 2 O 3 component (wherein, Ln is La, Gd, Y 1 or more selected from the group consisting of Yb), Nb 2 O 5 component is 5.0 to 35.0%, and mass ratio (TiO 2 + B 2 O 3 ) / (WO 3 + Nb 2 O 5 ) is 0 An optical glass containing ultra-1.5, a refractive index of 1.88 to 2.00, and an Abbe number of 25 to 38. 酸化物換算組成の質量％で、
ＺｎＯ成分 １．０〜２０．０％、
Ｌａ２Ｏ３成分 １５．０〜５０．０％
Ｇｄ２Ｏ３成分 ０〜１５．０％
Ｙ２Ｏ３成分 ０〜１５．０％
Ｙｂ２Ｏ３成分 ０〜１０．０％
ＳｉＯ２成分 ０〜１５．０％、
ＴｉＯ２成分 ０〜１５．０％、
ＺｒＯ２成分 ０〜１５．０％、
ＷＯ３成分 ０〜３０．０％、
ＭｇＯ成分 ０〜１０．０％、
ＣａＯ成分 ０〜１５．０％、
ＳｒＯ成分 ０〜１５．０％、
ＢａＯ成分 ０〜１５．０％、
Ｌｉ２Ｏ成分 ０〜１０．０％
Ｎａ２Ｏ成分 ０〜１０．０％、
Ｋ２Ｏ成分 ０〜１０．０％、
Ｔａ２Ｏ５成分 ０〜１０．０％、
Ｐ２Ｏ５成分 ０〜１０．０％、
ＧｅＯ２成分 ０〜１０．０％、
Ａｌ２Ｏ３成分 ０〜１０．０％、
Ｇａ２Ｏ３成分 ０〜１０．０％、
Ｂｉ２Ｏ３成分 ０〜１０．０％、
ＴｅＯ２成分 ０〜５．０％、及び
ＳｎＯ２成分 ０〜１．０％を含有し
外割りの質量％でＳｂ２Ｏ３成分 ０〜１．０％
である請求項１記載の光学ガラス。 In mass% of oxide equivalent composition,
ZnO component 1.0 to 20.0%,
La 2 O 3 component 15.0-50.0%
Gd 2 O 3 component 0 to 15.0%
Y 2 O 3 component 0 to 15.0%
Yb 2 O 3 component 0 to 10.0%
SiO 2 component 0 to 15.0%,
TiO 2 component 0 to 15.0%,
ZrO 2 component 0 to 15.0%,
WO 3 component 0 to 30.0%,
MgO component 0 to 10.0%,
CaO component 0 to 15.0%,
SrO component 0 to 15.0%,
BaO component 0 to 15.0%,
Li 2 O component 0 to 10.0%
Na 2 O component 0 to 10.0%,
K 2 O component 0 to 10.0%,
Ta 2 O 5 component 0 to 10.0%,
P 2 O 5 component 0 to 10.0%,
GeO 2 component 0 to 10.0%,
Al 2 O 3 component 0 to 10.0%,
Ga 2 O 3 component 0 to 10.0%,
Bi 2 O 3 component 0 to 10.0%,
TeO 2 component 0 to 5.0% and SnO 2 component 0 to 1.0%, and Sb 2 O 3 component 0 to 1.0% in outer mass%
The optical glass according to claim 1. 部分分散比（θｇ，Ｆ）がアッベ数（νｄ）との間で、（−０．００１７×νｄ＋０．６３２４）≦（θｇ，Ｆ）≦（−０．００１７×νｄ＋０．６５４７）の関係を満たすことを特徴とする請求項１または請求項２に記載の光学ガラス。 The partial dispersion ratio (θg, F) satisfies the relationship of (−0.0017 × νd + 0.6324) ≦ (θg, F) ≦ (−0.0017 × νd + 0.6547) with the Abbe number (νd). The optical glass according to claim 1 or 2, characterized in that: 日本光学硝子工業会規格ＪＯＧＩＳ１２−１９９４「光学ガラスの泡の測定方法」の表１に示されている１００ｍｌのガラス中における泡の断面積の総和が級１〜３であり、かつ、日本光学硝子工業会規格ＪＯＧＩＳ１３−１９９４「光学ガラスの異物の測定方法」の表１に示されている１００ｍｌのガラス中における異物の断面積の総和が級１〜３であることを特徴とする請求項１から３のいずれかに記載の光学ガラス。 The sum of the cross-sectional areas of bubbles in 100 ml of glass shown in Table 1 of Japanese Optical Glass Industry Association Standard JOGIS12-1994 “Method for Measuring Foam of Optical Glass” is Class 1-3, and Japan Optical Glass The sum of the cross-sectional areas of the foreign matters in 100 ml of glass shown in Table 1 of the industry standard JOGIS13-1994 "Measurement method of foreign matters in optical glass" is from class 1 to 3. 4. The optical glass according to any one of 3 . 請求項１から４のいずれか記載の光学ガラスからなる光学素子。 An optical element formed of the optical glass according to any of claims 1 to 4. 請求項１から５のいずれか記載の光学ガラスからなる研磨加工用及び／又は精密プレス成形用のプリフォーム。 A preform for polishing and / or precision press molding comprising the optical glass according to any one of claims 1 to 5 . 請求項６記載のプリフォームを精密プレスしてなる光学素子。 An optical element obtained by precision pressing the preform according to claim 6 .
JP2015138978A 2015-07-10 2015-07-10 Optical glass, preform and optical element Active JP6663177B2 (en)

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JP2017019696A JP2017019696A (en) 2017-01-26
JP2017019696A5 true JP2017019696A5 (en) 2018-08-02
JP6663177B2 JP6663177B2 (en) 2020-03-11

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JP7433764B2 (en) * 2019-01-18 2024-02-20 Hoya株式会社 Method for promoting improvement of transmittance of glass, method for manufacturing glass, and glass
JPWO2020203673A1 (en) * 2019-04-05 2020-10-08
JP7517805B2 (en) * 2019-11-07 2024-07-17 株式会社オハラ Optical glass, preforms and optical elements
EP4129942A1 (en) * 2021-08-03 2023-02-08 Corning Incorporated Borate and silicoborate optical glasses with high refractive index and low liquidus temperature
NL2029053B1 (en) * 2021-08-03 2023-02-17 Corning Inc Borate and Silicoborate Optical Glasses with High Refractive Index and Low Liquidus Temperature

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JP2008222479A (en) * 2007-03-12 2008-09-25 Ohara Inc Optical glass
JP5669256B2 (en) * 2009-09-30 2015-02-12 Hoya株式会社 Optical glass, precision press-molding preform, optical element and manufacturing method thereof
JP5748614B2 (en) * 2011-03-29 2015-07-15 株式会社オハラ Optical glass, preform and optical element
JP5748613B2 (en) * 2011-03-29 2015-07-15 株式会社オハラ Optical glass, preform and optical element
JP6096502B2 (en) * 2011-12-20 2017-03-15 株式会社オハラ Optical glass and optical element
JP5767179B2 (en) * 2012-08-30 2015-08-19 株式会社オハラ Optical glass, preform and optical element

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