GB1296819A - - Google Patents

Info

Publication number
GB1296819A
GB1296819A GB1296819DA GB1296819A GB 1296819 A GB1296819 A GB 1296819A GB 1296819D A GB1296819D A GB 1296819DA GB 1296819 A GB1296819 A GB 1296819A
Authority
GB
United Kingdom
Prior art keywords
glass
metal
base
glass layer
softening temperature
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
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 filed Critical
Publication of GB1296819A publication Critical patent/GB1296819A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • 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
    • C03C3/16—Silica-free oxide glass compositions containing phosphorus
    • C03C3/17—Silica-free oxide glass compositions containing phosphorus containing aluminium or beryllium
    • 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
    • C03C3/16—Silica-free oxide glass compositions containing phosphorus
    • C03C3/21—Silica-free oxide glass compositions containing phosphorus containing titanium, zirconium, vanadium, tungsten or molybdenum

Abstract

1296819 Laminates LENINGRADSKY INSTITUT TOCHNOI MEKHANIKI I OPTIKI 8 Sept 1970 42871/70 Heading B5N [Also in Divisions C1 C7 and G2] An optical mirror comprises a reflective coating 3, a glass layer 2 having a thickness of less than 6 mm., and a carrier base 1 of a refractory metal having a softening temperature at least 100‹ C. higher than the softening temperature of the glass. The glass may be fritted to the metal, when the glass and metal preferably have substantially equal thermal expansion coefficients. The metal may have blind holes, as shown, and lugs, e.g. 5 are provided to a tach the assembly to a support. The metal may be a Ti alloy, Be, or a steel, and the glass layer may contain (a) SiO 2 , B 2 O, Al 2 O 3 , As 2 O 3 , K 2 O and KHF 2 ; or (b) P 2 O 5 , Al 2 O 3 , ZnO, K 2 O and V 2 O 5 (two different compositions given). The glass layer may be produced by melting glass powder in vacuum in contact with the base, or heating a glass sheet in contact with the base.
GB1296819D 1970-09-08 1970-09-08 Expired GB1296819A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4287170 1970-09-08
FR7035426A FR2108173B1 (en) 1970-09-08 1970-09-30

Publications (1)

Publication Number Publication Date
GB1296819A true GB1296819A (en) 1972-11-22

Family

ID=26215977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1296819D Expired GB1296819A (en) 1970-09-08 1970-09-08

Country Status (2)

Country Link
FR (1) FR2108173B1 (en)
GB (1) GB1296819A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100420966C (en) * 2006-11-08 2008-09-24 中国建筑材料科学研究总院 Light surface glass titanium metal planar reflector and a special glass
CN102236116A (en) * 2011-07-06 2011-11-09 刘海鹰 Novel spherical mirror
CN103135244A (en) * 2011-12-05 2013-06-05 北京空间声科技贸易有限公司 Solar simulator metal multi-hole collimating lens
CN106365418A (en) * 2016-08-30 2017-02-01 中国建筑材料科学研究总院 Light-weight quartz glass and preparing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1581455A (en) * 1977-06-28 1980-12-17 Bfg Glassgroup Mirrors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100420966C (en) * 2006-11-08 2008-09-24 中国建筑材料科学研究总院 Light surface glass titanium metal planar reflector and a special glass
CN102236116A (en) * 2011-07-06 2011-11-09 刘海鹰 Novel spherical mirror
CN103135244A (en) * 2011-12-05 2013-06-05 北京空间声科技贸易有限公司 Solar simulator metal multi-hole collimating lens
CN106365418A (en) * 2016-08-30 2017-02-01 中国建筑材料科学研究总院 Light-weight quartz glass and preparing method thereof
CN106365418B (en) * 2016-08-30 2019-04-16 中国建筑材料科学研究总院 Lightweight quartz glass and preparation method thereof

Also Published As

Publication number Publication date
FR2108173A1 (en) 1972-05-19
FR2108173B1 (en) 1974-08-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee