FR922474A - Perfectionnements aux verres d'optique - Google Patents

Perfectionnements aux verres d'optique

Info

Publication number
FR922474A
FR922474A FR922474DA FR922474A FR 922474 A FR922474 A FR 922474A FR 922474D A FR922474D A FR 922474DA FR 922474 A FR922474 A FR 922474A
Authority
FR
France
Prior art keywords
optical glasses
glasses
optical
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.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chance Brothers Ltd
Original Assignee
Chance Brothers Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chance Brothers Ltd filed Critical Chance Brothers Ltd
Application granted granted Critical
Publication of FR922474A publication Critical patent/FR922474A/fr
Expired legal-status Critical Current

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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead 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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • C03C3/074—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc
    • 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
FR922474D 1943-05-31 1946-02-15 Perfectionnements aux verres d'optique Expired FR922474A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8681/43A GB579243A (en) 1943-05-31 1943-05-31 Improvements relating to optical glasses

Publications (1)

Publication Number Publication Date
FR922474A true FR922474A (fr) 1947-06-10

Family

ID=9857172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR922474D Expired FR922474A (fr) 1943-05-31 1946-02-15 Perfectionnements aux verres d'optique

Country Status (3)

Country Link
US (1) US2431983A (fr)
FR (1) FR922474A (fr)
GB (1) GB579243A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958150C (de) * 1954-02-10 1957-02-14 Jenaer Glaswerk Schott & Gen Optisches Glas

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL65566C (fr) * 1945-12-27
US2523265A (en) * 1947-11-28 1950-09-26 Corning Glass Works Ophthalmic glass
US2972544A (en) * 1959-10-22 1961-02-21 Westinghouse Electric Corp Glass composition

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE308075C (fr) * 1912-04-04
NL34403C (fr) * 1930-02-09
US2206081A (en) * 1935-09-03 1940-07-02 Eastman Kodak Co Optical glass
DE688148C (de) * 1937-10-27 1940-02-14 Patra Patent Treuhand Einschmelzung metallischer Stromleiter in Quarzglasgefaesse
BE468457A (fr) * 1939-07-12
BE439896A (fr) * 1939-12-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958150C (de) * 1954-02-10 1957-02-14 Jenaer Glaswerk Schott & Gen Optisches Glas

Also Published As

Publication number Publication date
GB579243A (en) 1946-07-29
US2431983A (en) 1947-12-02

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