JP4997990B2 - 光学ガラス及び光学素子 - Google Patents
光学ガラス及び光学素子 Download PDFInfo
- Publication number
- JP4997990B2 JP4997990B2 JP2007013429A JP2007013429A JP4997990B2 JP 4997990 B2 JP4997990 B2 JP 4997990B2 JP 2007013429 A JP2007013429 A JP 2007013429A JP 2007013429 A JP2007013429 A JP 2007013429A JP 4997990 B2 JP4997990 B2 JP 4997990B2
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- glass
- optical
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- 239000005304 optical glass Substances 0.000 title claims description 29
- 230000003287 optical effect Effects 0.000 title claims description 17
- 239000011521 glass Substances 0.000 claims description 37
- 238000000465 moulding Methods 0.000 claims description 24
- 230000009477 glass transition Effects 0.000 claims description 9
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 8
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 7
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 13
- 239000000203 mixture Substances 0.000 description 11
- 239000000047 product Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000003303 reheating Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
- C03C3/14—Silica-free oxide glass compositions containing boron
- C03C3/15—Silica-free oxide glass compositions containing boron containing rare earths
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Description
Claims (3)
- 重量%で、
SiO2:0〜8%、
B2O3:34.5〜46%、
Li2O:2.6〜6%、
ZnO:21〜38%、
La2O3:0〜40%、
Gd2O3:0〜35%、
Y2O3:0〜15%、
La2O3+Gd2O3+Y2O3:10〜40%、
Na2O:0〜1%、
K2O:0〜1%、
MgO:0〜5%、
CaO:0〜8%、
SrO:0〜10%、
BaO:0〜10%、
TiO2:0〜5%、
ZrO2:0〜5%、
Nb2O5:0〜6%、
Ta2O5:0〜10%、
WO3:0〜10%、
Sb2O3:0〜1%、
Bi2O3:0〜3%、
の各ガラス成分を有し、光学ガラスの屈折率(nd)とアッベ数(νd)の分布図において屈折率(nd)とアッベ数(νd)を示す座標を(nd、νd)で表すとき、屈折率(nd)とアッベ数(νd)が(1.730、52.0)、(1.680、55.0)、(1.680、50.0)及び(1.730.50.0)で囲まれる範囲にあり、ガラス転移温度(Tg)が520℃以下であり、温度100〜300℃における線膨張係数(α)が80×10-7/K以下であることを特徴とする光学ガラス。 - 請求項1に記載の光学ガラスからなることを特徴とする光学素子。
- 請求項1に記載の光学ガラスをモールドプレス成形して作製されたことを特徴とする光学素子。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007013429A JP4997990B2 (ja) | 2007-01-24 | 2007-01-24 | 光学ガラス及び光学素子 |
US12/009,814 US7704904B2 (en) | 2007-01-24 | 2008-01-22 | Optical glass and optical element |
CN2008100051597A CN101229956B (zh) | 2007-01-24 | 2008-01-23 | 光学玻璃和光学元件 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007013429A JP4997990B2 (ja) | 2007-01-24 | 2007-01-24 | 光学ガラス及び光学素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008179499A JP2008179499A (ja) | 2008-08-07 |
JP4997990B2 true JP4997990B2 (ja) | 2012-08-15 |
Family
ID=39641859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007013429A Active JP4997990B2 (ja) | 2007-01-24 | 2007-01-24 | 光学ガラス及び光学素子 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7704904B2 (ja) |
JP (1) | JP4997990B2 (ja) |
CN (1) | CN101229956B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006115183A1 (en) * | 2005-04-22 | 2006-11-02 | Ohara Inc. | A glass composition |
JP2008179500A (ja) * | 2007-01-24 | 2008-08-07 | Konica Minolta Opto Inc | 光学ガラス及び光学素子 |
JPWO2010035770A1 (ja) * | 2008-09-25 | 2012-02-23 | 日本山村硝子株式会社 | 光学ガラス |
CN102923951B (zh) * | 2012-11-23 | 2018-04-13 | 成都光明光电股份有限公司 | 光学玻璃及光学元件 |
CN109111103A (zh) * | 2018-08-17 | 2019-01-01 | 成都光明光电股份有限公司 | 光学玻璃、由其制备而成的玻璃预制件或光学元件及光学仪器 |
CN110183105B (zh) * | 2019-06-13 | 2022-04-05 | 湖北新华光信息材料有限公司 | 光学玻璃及其制备方法和光学元件 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62100449A (ja) * | 1985-10-24 | 1987-05-09 | Ohara Inc | 光学ガラス |
JP3059719B2 (ja) * | 1998-04-28 | 2000-07-04 | ホーヤ株式会社 | 光学ガラス、それを用いた精密プレス成形用素材および光学部品 |
US6251813B1 (en) | 1998-04-28 | 2001-06-26 | Hoya Corporation | Optical glass and its use |
JP3377454B2 (ja) | 1998-10-12 | 2003-02-17 | 株式会社オハラ | モールドプレス用光学ガラス |
JP2001130924A (ja) | 1999-10-28 | 2001-05-15 | Hoya Corp | 精密プレス成形用ガラス、光学部品およびその製造方法 |
JP4305816B2 (ja) * | 2002-11-08 | 2009-07-29 | Hoya株式会社 | 光学ガラス、プレス成形用ガラス成形体および光学素子 |
WO2004087596A1 (ja) * | 2003-03-31 | 2004-10-14 | Nihon Yamamura Glass Co., Ltd. | 光学ガラス |
JP2005047732A (ja) * | 2003-07-31 | 2005-02-24 | Minolta Co Ltd | 光学ガラス及び光学素子 |
JP4140850B2 (ja) * | 2004-03-05 | 2008-08-27 | Hoya株式会社 | 精密プレス成形用プリフォームの製造方法および光学素子の製造方法 |
JP2006111482A (ja) * | 2004-10-14 | 2006-04-27 | Konica Minolta Opto Inc | 光学ガラス及び光学素子 |
JP4560438B2 (ja) * | 2005-04-27 | 2010-10-13 | 日本山村硝子株式会社 | 光学ガラス |
JP4924978B2 (ja) * | 2005-11-16 | 2012-04-25 | 日本電気硝子株式会社 | モールドプレス成形用光学ガラス |
CN101389576A (zh) * | 2006-02-24 | 2009-03-18 | 旭硝子株式会社 | 光学玻璃和透镜 |
JP5160042B2 (ja) * | 2006-03-31 | 2013-03-13 | Hoya株式会社 | ガラス光学素子の製造方法 |
-
2007
- 2007-01-24 JP JP2007013429A patent/JP4997990B2/ja active Active
-
2008
- 2008-01-22 US US12/009,814 patent/US7704904B2/en active Active
- 2008-01-23 CN CN2008100051597A patent/CN101229956B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20080176734A1 (en) | 2008-07-24 |
JP2008179499A (ja) | 2008-08-07 |
US7704904B2 (en) | 2010-04-27 |
CN101229956A (zh) | 2008-07-30 |
CN101229956B (zh) | 2012-07-04 |
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