IT999783B - Lenti per occhiali ad alto indice di rifrazione per elevati valori di diottrie a bassa densita - Google Patents
Lenti per occhiali ad alto indice di rifrazione per elevati valori di diottrie a bassa densitaInfo
- Publication number
- IT999783B IT999783B IT70415/73A IT7041573A IT999783B IT 999783 B IT999783 B IT 999783B IT 70415/73 A IT70415/73 A IT 70415/73A IT 7041573 A IT7041573 A IT 7041573A IT 999783 B IT999783 B IT 999783B
- Authority
- IT
- Italy
- Prior art keywords
- dioptries
- glasses
- lenses
- low density
- refraction index
- Prior art date
Links
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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S501/00—Compositions: ceramic
- Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number
- Y10S501/903—Optical glass, e.g. silent on refractive index and/or ABBE number having refractive index less than 1.8 and ABBE number less than 70
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)
- Eyeglasses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722259183 DE2259183C3 (de) | 1972-12-02 | Hochbrechende Brillengläser für hohe Dioptrienwerte mit geringer Dichte ä 3,0 und Ausdehnungskoeffizienten a χ 107 < 100 (20-300 Grad C) |
Publications (1)
Publication Number | Publication Date |
---|---|
IT999783B true IT999783B (it) | 1976-03-10 |
Family
ID=5863404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT70415/73A IT999783B (it) | 1972-12-02 | 1973-11-21 | Lenti per occhiali ad alto indice di rifrazione per elevati valori di diottrie a bassa densita |
Country Status (11)
Country | Link |
---|---|
US (1) | US3898093A (it) |
JP (1) | JPS5651141B2 (it) |
AR (1) | AR202803A1 (it) |
AT (1) | AT327426B (it) |
BR (1) | BR7309423D0 (it) |
CA (1) | CA996958A (it) |
CS (1) | CS172984B2 (it) |
DD (1) | DD107655A5 (it) |
FR (1) | FR2208853B1 (it) |
GB (1) | GB1436562A (it) |
IT (1) | IT999783B (it) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2456894C3 (de) * | 1974-12-02 | 1978-04-06 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Anorganisches, glasiges Material zur Verwendung in einem Ionenaustausch zwecks Erzeugung eines Brechwertgradienten bei weitgehender Vermeidung einer Änderung des thermischen Ausdehnungskoeffizienten |
US3997250A (en) * | 1975-07-02 | 1976-12-14 | American Optical Corporation | High strength ophthalmic lens |
US3996627A (en) * | 1975-09-22 | 1976-12-14 | American Optical Corporation | Artificial intraocular lens |
JPS5245616A (en) * | 1975-10-08 | 1977-04-11 | Tokyo Shibaura Electric Co | Process for tempering high refractive indexed glass |
US3997249A (en) * | 1975-10-28 | 1976-12-14 | American Optical Corporation | Ion exchangeable segment glass |
JPS5269915A (en) * | 1975-12-10 | 1977-06-10 | Hoya Glass Works Ltd | Glass for lens of eyeglasses |
DE2828791C2 (de) * | 1977-07-01 | 1986-07-31 | Corning Glass Works, Corning, N.Y. | Glas im System SiO↓2↓-TiO↓2↓-ZrO↓2↓-CaO-BaO-Nb↓2↓O↓5↓-Alkalioxid (-Al↓2↓O↓3↓-MgO-SrO) mit einem hohen Brechungsindex und einer geringen Dichte |
FR2427309A2 (fr) * | 1978-06-01 | 1979-12-28 | Corning Glass Works | Verre d'indice de refraction eleve et de faible densite |
DE2824982C3 (de) * | 1978-06-07 | 1981-04-30 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Hochbrechende optische Gläser des Systems SiO↓2↓-B↓2↓O↓3↓-TiO↓2↓- ZrO↓2↓-BaO-Nb↓2↓O↓5↓-Li↓2↓O mit geringer Dichte von s = 3,4 - 3,7 für Fernteil- und Nahteil-Brillengläser mit Brechwerten n↓D↓ = 1,79 - 1,81 und Dispersionen v↓D↓ = 31 - 29 |
DE2824891B2 (de) * | 1978-06-07 | 1980-07-17 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Hochbrechende Brillenrohgläser des Systems SiO2 -B2 O3 - TiO2 -La2 O3 -Erdalkalioxide mit geringer |
DE2952705C2 (de) * | 1979-12-29 | 1982-03-18 | Schott Glaswerke, 6500 Mainz | Optisches Glas mit der optischen Lage n↓D↓ ist 1,62+-(1,5 mal 10-2), V↓D↓ ist 59,5+-1,0, mit hoher chemischer Beständigkeit und geringer Kristallisationsneigung aufbauend auf dem an sich bekannten System SiO↓2↓-B↓2↓O↓3↓-La↓2↓O↓3↓-SrO- |
DE3026605C2 (de) * | 1980-07-14 | 1983-07-07 | Schott Glaswerke, 6500 Mainz | Säurefestes, hydrolytisch beständiges optisches und ophthalmisches Borosilikat-Glas geringer Dichte |
DE3139212C2 (de) | 1981-10-02 | 1987-02-12 | Schott Glaswerke, 6500 Mainz | Verwendung eines Glases mit Brechwerten nd ≥ 1,58, Abbezahlen ≥ 45 und Dichten ≦ 2,75 g/cm↑3↑ als Brillenglas |
JPS5869342U (ja) * | 1981-10-29 | 1983-05-11 | 三洋電機株式会社 | テ−プレコ−ダ−の頭出し装置 |
DE3204625C2 (de) * | 1982-02-10 | 1986-07-10 | Schott Glaswerke, 6500 Mainz | Alumosilico-Phosphat-Brillenglas mit einer Abbezahl über 46, mit einem Brechungsindex über 1,56 und einer sehr niedrigen Dichte |
DE3206958C2 (de) * | 1982-02-26 | 1986-09-18 | Schott Glaswerke, 6500 Mainz | Phototropes Glas mit einem Brechungsindex ≥ 1,59, einer Abbezahl ≥ 44 und einer Dichte ≦ 3,0 g/cm↑3↑ |
DE3216451C2 (de) * | 1982-05-03 | 1984-04-19 | Schott Glaswerke, 6500 Mainz | Optisches Leichtgewichtglas mit einem Brechwert ≥ 1.70, einer Abbezahl ≥ 22 und einer Dichte ≦ 3,5 g/cm↑3↑ |
US4444893A (en) * | 1982-06-11 | 1984-04-24 | Schott Glass Technologies, Inc. | Highly refractive, low dispersion, low density optical glass suitable for corrective lenses |
DE3331106C2 (de) * | 1983-08-30 | 1985-09-19 | Schott Glaswerke, 6500 Mainz | Optisches Glas mit einem Brechtwert ≥1.60 und einer Abbezahl ≥58, mit hoher chemischer Stabilität und Entmischungs- und Kristallisationsfestigkeit im System SiO↓2↓-B↓2↓O↓3↓-SrO-La↓2↓O↓3↓-Al↓2↓O↓3↓-BaO-Alkalioxid-F |
JPS5918131A (ja) * | 1984-01-27 | 1984-01-30 | Nippon Kogaku Kk <Nikon> | 眼鏡レンズ用軽量ガラス |
EP0287345A1 (en) * | 1987-04-16 | 1988-10-19 | Canon Kabushiki Kaisha | Glass composition for and method for preparation of gradient index lens |
US5843200A (en) * | 1995-08-08 | 1998-12-01 | Eastman Kodak Company | Product and process for molding glass lenses |
JP3399883B2 (ja) * | 1999-08-30 | 2003-04-21 | 株式会社オハラ | 光フィルター用ガラス及び光フィルター |
US7005187B2 (en) * | 1999-08-30 | 2006-02-28 | Kabushiki Kaisha Ohara | Glass for a light filter and a light filter |
US6903038B2 (en) * | 2000-08-16 | 2005-06-07 | Schott Glass Technologies, Inc. | Glass with a minimal stress-optic effect |
TW530166B (en) * | 2001-01-05 | 2003-05-01 | Schott Glass Tech Inc | Interference filter having a glass substrate |
JP4041298B2 (ja) * | 2001-10-05 | 2008-01-30 | 日本板硝子株式会社 | レーザ光照射によるガラスの加工方法 |
US7528083B2 (en) | 2003-06-10 | 2009-05-05 | Kabushiki Kaish Ohara | Optical glass |
CN101107202B (zh) * | 2005-01-17 | 2012-02-15 | 株式会社小原 | 玻璃 |
US7499219B2 (en) * | 2005-10-14 | 2009-03-03 | Volk Optical, Inc. | Optimized lens for indirect ophthalmoscopy |
JP5543078B2 (ja) * | 2008-02-28 | 2014-07-09 | 株式会社オハラ | 光学ガラス及び光学素子 |
JP6029627B2 (ja) * | 2014-08-13 | 2016-11-24 | Hoya株式会社 | 車載カメラ用レンズ |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2523265A (en) * | 1947-11-28 | 1950-09-26 | Corning Glass Works | Ophthalmic glass |
BE551389A (it) * | 1956-09-10 | |||
GB974909A (en) * | 1961-09-01 | 1964-11-11 | Leitz Ernst Gmbh | Improvements in or relating to glass |
US3477863A (en) * | 1964-09-18 | 1969-11-11 | Leitz Ernst Gmbh | Heavy flint glasses |
DE1496548B2 (de) * | 1965-09-04 | 1971-09-30 | Jenaer Glaswerk Schott & Gen , 6500 Mainz | Kristallisationsstabile thoriumoxid und berylliumoxid freie optische glaeser |
DE1596845B1 (de) * | 1966-12-07 | 1970-10-22 | Jenaer Glaswerk Schott & Gen | Glas mit kleinem Temperaturkoeffizienten der Laufze it fuer Ultraschallwellen |
DE1596864B1 (de) * | 1967-11-14 | 1971-11-11 | Jenaer Glaswerk Schott & Gen | Fluoridfreies optisches flintglas mit relativ niedrigen brechwerten und relativ hoher dispersion und verfahren zu seiner herstellung |
FR2056248A5 (it) * | 1969-08-14 | 1971-05-14 | Leitz Ernst Gmbh |
-
1973
- 1973-10-03 AR AR250350A patent/AR202803A1/es active
- 1973-10-19 GB GB4893373A patent/GB1436562A/en not_active Expired
- 1973-10-31 CS CS7478A patent/CS172984B2/cs unknown
- 1973-11-21 IT IT70415/73A patent/IT999783B/it active
- 1973-11-29 AT AT1000473A patent/AT327426B/de not_active IP Right Cessation
- 1973-11-29 DD DD174970*A patent/DD107655A5/xx unknown
- 1973-11-30 CA CA187,071A patent/CA996958A/en not_active Expired
- 1973-11-30 FR FR7342728A patent/FR2208853B1/fr not_active Expired
- 1973-11-30 US US420369A patent/US3898093A/en not_active Expired - Lifetime
- 1973-11-30 BR BR9423/73A patent/BR7309423D0/pt unknown
- 1973-12-01 JP JP13644273A patent/JPS5651141B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5651141B2 (it) | 1981-12-03 |
CA996958A (en) | 1976-09-14 |
CS172984B2 (it) | 1977-01-28 |
JPS4987716A (it) | 1974-08-22 |
US3898093A (en) | 1975-08-05 |
FR2208853B1 (it) | 1977-09-16 |
ATA1000473A (de) | 1975-04-15 |
AR202803A1 (es) | 1975-07-24 |
DD107655A5 (it) | 1974-08-12 |
BR7309423D0 (pt) | 1974-08-29 |
AT327426B (de) | 1976-01-26 |
DE2259183A1 (de) | 1974-06-20 |
GB1436562A (en) | 1976-05-19 |
FR2208853A1 (it) | 1974-06-28 |
DE2259183B2 (de) | 1975-02-20 |
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