JP2005350279A - 光学用ガラス - Google Patents
光学用ガラス Download PDFInfo
- Publication number
- JP2005350279A JP2005350279A JP2004169766A JP2004169766A JP2005350279A JP 2005350279 A JP2005350279 A JP 2005350279A JP 2004169766 A JP2004169766 A JP 2004169766A JP 2004169766 A JP2004169766 A JP 2004169766A JP 2005350279 A JP2005350279 A JP 2005350279A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- optical glass
- optical
- transmittance
- refractive index
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000005304 optical glass Substances 0.000 title claims abstract description 33
- 239000002253 acid Substances 0.000 claims abstract description 21
- 238000002834 transmittance Methods 0.000 claims abstract description 19
- 230000007423 decrease Effects 0.000 claims abstract description 9
- 238000010828 elution Methods 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 7
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 3
- 229910018071 Li 2 O 2 Inorganic materials 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 20
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- 229910052700 potassium Inorganic materials 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 40
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 238000005498 polishing Methods 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000004031 devitrification Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000006060 molten glass Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004075 alteration Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 206010040925 Skin striae Diseases 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- 229910015902 Bi 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006025 fining agent Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- 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
- C03C4/00—Compositions for glass with special properties
- C03C4/20—Compositions for glass with special properties for chemical resistant glass
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
【解決手段】本発明の光学ガラスは、質量%で、SiO2 42〜60%、B2O3 2〜10%、CaO 0.5〜11%、BaO 3〜17%、SrO 0〜10%、Li2O 2〜10%、ZrO2 0〜3%、La2O3 0〜2.5%含有し、Li2O、Na2OおよびK2Oの合量が3〜12%であることを特徴とする。また、本発明の光学ガラスは、屈折率が1.55〜1.60、アッベ数が57以上、酸溶出量が0.65質量%未満の光学ガラスであって、高温高湿処理した後の波長500nmの透過率が肉厚10mmにおいて80%以上であり、該処理による透過率の低下が10%以下であることを特徴とする。
【選択図】なし
Description
Claims (3)
- 質量%で、SiO2 42〜60%、B2O3 2〜11%、CaO 0.5〜10%、BaO 3〜17%、SrO 0〜10%、Li2O 2〜10%、ZrO2 0〜3%、La2O3 0〜2.5%含有し、Li2O、Na2OおよびK2Oの合量が3〜12%であることを特徴とする光学ガラス。
- 軟化点が630℃以下であることを特徴とする請求項1に記載の光学ガラス。
- 屈折率が1.55〜1.60、アッベ数が57以上、酸溶出量が0.65質量%未満の光学ガラスであって、高温高湿処理した後の波長500nmの透過率が肉厚10mmにおいて80%以上であり、該処理による透過率の低下が10%以下であることを特徴とする光学ガラス。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004169766A JP4687010B2 (ja) | 2004-06-08 | 2004-06-08 | 光学レンズ用ガラス |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004169766A JP4687010B2 (ja) | 2004-06-08 | 2004-06-08 | 光学レンズ用ガラス |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005350279A true JP2005350279A (ja) | 2005-12-22 |
JP4687010B2 JP4687010B2 (ja) | 2011-05-25 |
Family
ID=35585064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004169766A Expired - Fee Related JP4687010B2 (ja) | 2004-06-08 | 2004-06-08 | 光学レンズ用ガラス |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4687010B2 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007176748A (ja) * | 2005-12-28 | 2007-07-12 | Nippon Electric Glass Co Ltd | 光学ガラス |
JP2009073674A (ja) * | 2006-09-04 | 2009-04-09 | Nippon Electric Glass Co Ltd | ガラスの製造方法 |
WO2012157695A1 (ja) * | 2011-05-18 | 2012-11-22 | 日本電気硝子株式会社 | 高屈折率ガラス |
US8999871B2 (en) | 2011-05-25 | 2015-04-07 | Nippon Electric Glass Co., Ltd. | High refractive index glass |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0492836A (ja) * | 1990-08-03 | 1992-03-25 | Ohara Inc | 樹脂充填用ガラス |
JPH05246735A (ja) * | 1992-03-04 | 1993-09-24 | Canon Inc | 光学ガラス |
JPH05270860A (ja) * | 1992-01-20 | 1993-10-19 | Carl Zeiss:Fa | 釉掛け、ほうろう引き及び装飾用の鉛フリー及びカドミウムフリーのガラス組成物及びその用途 |
JP2000302479A (ja) * | 1999-02-08 | 2000-10-31 | Nippon Electric Glass Co Ltd | モールドプレス成形用光学ガラス |
JP2003017632A (ja) * | 2001-06-28 | 2003-01-17 | Nippon Electric Glass Co Ltd | 半導体封入用ガラス及び半導体封入用外套管 |
JP2004175592A (ja) * | 2002-11-25 | 2004-06-24 | Hikari Glass Co Ltd | 光学ガラス |
-
2004
- 2004-06-08 JP JP2004169766A patent/JP4687010B2/ja not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0492836A (ja) * | 1990-08-03 | 1992-03-25 | Ohara Inc | 樹脂充填用ガラス |
JPH05270860A (ja) * | 1992-01-20 | 1993-10-19 | Carl Zeiss:Fa | 釉掛け、ほうろう引き及び装飾用の鉛フリー及びカドミウムフリーのガラス組成物及びその用途 |
JPH05246735A (ja) * | 1992-03-04 | 1993-09-24 | Canon Inc | 光学ガラス |
JP2000302479A (ja) * | 1999-02-08 | 2000-10-31 | Nippon Electric Glass Co Ltd | モールドプレス成形用光学ガラス |
JP2003017632A (ja) * | 2001-06-28 | 2003-01-17 | Nippon Electric Glass Co Ltd | 半導体封入用ガラス及び半導体封入用外套管 |
JP2004175592A (ja) * | 2002-11-25 | 2004-06-24 | Hikari Glass Co Ltd | 光学ガラス |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007176748A (ja) * | 2005-12-28 | 2007-07-12 | Nippon Electric Glass Co Ltd | 光学ガラス |
JP2009073674A (ja) * | 2006-09-04 | 2009-04-09 | Nippon Electric Glass Co Ltd | ガラスの製造方法 |
WO2012157695A1 (ja) * | 2011-05-18 | 2012-11-22 | 日本電気硝子株式会社 | 高屈折率ガラス |
CN103492331A (zh) * | 2011-05-18 | 2014-01-01 | 日本电气硝子株式会社 | 高折射率玻璃 |
US8999871B2 (en) | 2011-05-25 | 2015-04-07 | Nippon Electric Glass Co., Ltd. | High refractive index glass |
Also Published As
Publication number | Publication date |
---|---|
JP4687010B2 (ja) | 2011-05-25 |
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