JP2009221040A5 - - Google Patents

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Publication number
JP2009221040A5
JP2009221040A5 JP2008066586A JP2008066586A JP2009221040A5 JP 2009221040 A5 JP2009221040 A5 JP 2009221040A5 JP 2008066586 A JP2008066586 A JP 2008066586A JP 2008066586 A JP2008066586 A JP 2008066586A JP 2009221040 A5 JP2009221040 A5 JP 2009221040A5
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JP
Japan
Prior art keywords
weight
optical glass
glass according
refractive index
geo
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Pending
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JP2008066586A
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Japanese (ja)
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JP2009221040A (en
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Priority to JP2008066586A priority Critical patent/JP2009221040A/en
Priority claimed from JP2008066586A external-priority patent/JP2009221040A/en
Publication of JP2009221040A publication Critical patent/JP2009221040A/en
Publication of JP2009221040A5 publication Critical patent/JP2009221040A5/ja
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Claims (6)

ガラス全体量を１００重量％とし、酸化物組成として、Ｂ２Ｏ３：６〜２５重量％、ＧｅＯ２：３１．２６〜４８重量％及びＢｉ２Ｏ３：３５〜８９重量％を含有し、
屈折率が１．６５〜１．９５であり、且つ、屈伏温度が５００℃以下である、
ことを特徴とする光学ガラス。 The total amount of the glass is 100% by weight, and the oxide composition contains B 2 O 3 : 6 to 25% by weight, GeO 2 : 31.26 to 48% by weight and Bi 2 O 3 : 35 to 89% by weight,
The refractive index is 1.65 to 1.95, and the yield temperature is 500 ° C. or lower.
An optical glass characterized by that. ガラス全体量を１００重量％とし、酸化物組成として、
（１）Ｂ２Ｏ３：６〜２５重量％、ＧｅＯ２：３１．２６〜４８重量％及びＢｉ２Ｏ３：３５〜８９重量％、
（２）ＳｉＯ２：０〜１０重量％、Ｐ２Ｏ５：０〜１０重量％及びＡｌ２Ｏ３：０〜１０重量％、
（３）Ｌｉ２Ｏ：０〜１０重量％、Ｎａ２Ｏ：０〜１０重量％、Ｋ２Ｏ：０〜１０重量％、Ｒｂ２Ｏ：０〜２０重量％及びＣｓ２Ｏ：０〜２０重量％、
（４）ＭｇＯ：０〜１０重量％、ＣａＯ：０〜１０重量％、ＳｒＯ：０〜１０重量％、ＢａＯ：０〜２０重量％及びＺｎＯ：０〜１０重量％、
（５）Ｎｂ２Ｏ５：０〜５重量％、Ｔａ２Ｏ５：０〜５重量％、Ｇｄ２Ｏ３：０〜５重量％及びＧａ２Ｏ３：０〜１０重量％、並びに
（６）Ｓｂ２Ｏ３：０〜１重量％
を含有する、請求項１に記載の光学ガラス。 The total amount of glass is 100% by weight, and the oxide composition is
(1) B 2 O 3: 6~25 wt%, GeO 2: 31.26 to 48 wt% and Bi 2 O 3: 35~89 wt%,
(2) SiO 2: 0~10 wt%, P 2 O 5: 0~10 wt% and Al 2 O 3: 0~10 wt%,
(3) Li 2 O: 0~10 wt%, Na 2 O: 0~10 wt%, K 2 O: 0~10 wt%, Rb 2 O: 0~20 wt% and Cs 2 O: 0 to 20 weight%,
(4) MgO: 0 to 10 wt%, CaO: 0 to 10 wt%, SrO: 0 to 10 wt%, BaO: 0 to 20 wt% and ZnO: 0 to 10 wt%,
(5) Nb 2 O 5 : 0 to 5% by weight, Ta 2 O 5 : 0 to 5% by weight, Gd 2 O 3 : 0 to 5% by weight and Ga 2 O 3 : 0 to 10% by weight, and (6 ) Sb 2 O 3 : 0 to 1% by weight
The optical glass according to claim 1, comprising: 屈折率が１．７０〜１．９５である、請求項１又は２に記載の光学ガラス。   The optical glass according to claim 1 or 2, having a refractive index of 1.70 to 1.95. 屈伏温度が４８０℃以下である、請求項１又は２に記載の光学ガラス。   The optical glass according to claim 1 or 2, wherein a deformation temperature is 480 ° C or lower. 屈折率が１．７０〜１．９５であり、且つ、屈伏温度が４８０℃以下である、請求項１又は２に記載の光学ガラス。   The optical glass according to claim 1 or 2, having a refractive index of 1.70 to 1.95 and a yield temperature of 480 ° C or lower. モールドプレス成形用である、請求項１〜５のいずれかに記載の光学ガラス。   The optical glass according to any one of claims 1 to 5, which is used for mold press molding.
JP2008066586A 2008-03-14 2008-03-14 Optical glass Pending JP2009221040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008066586A JP2009221040A (en) 2008-03-14 2008-03-14 Optical glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008066586A JP2009221040A (en) 2008-03-14 2008-03-14 Optical glass

Publications (2)

Publication Number Publication Date
JP2009221040A JP2009221040A (en) 2009-10-01
JP2009221040A5 true JP2009221040A5 (en) 2009-11-26

Family

ID=41238237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008066586A Pending JP2009221040A (en) 2008-03-14 2008-03-14 Optical glass

Country Status (1)

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JP (1) JP2009221040A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009280429A (en) * 2008-05-21 2009-12-03 Isuzu Seiko Glass Kk Optical glass
JP5770973B2 (en) * 2009-12-25 2015-08-26 株式会社住田光学ガラス Optical glass and optical element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4671263B2 (en) * 2001-09-10 2011-04-13 ショット アクチエンゲゼルシャフト Bismuth oxide glass containing germanium oxide
DE10308476B4 (en) * 2003-02-20 2006-03-02 Schott Ag Bismuth oxide-containing glass, process for making and using such a glass
JP5441045B2 (en) * 2007-01-19 2014-03-12 五鈴精工硝子株式会社 Optical glass
JP2009203135A (en) * 2008-02-28 2009-09-10 Ohara Inc Optical glass, optical element and preform for precision press molding

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