GB738630A - Improvements in light-filtering quartz glass - Google Patents

Improvements in light-filtering quartz glass

Info

Publication number
GB738630A
GB738630A GB33178/53A GB3317853A GB738630A GB 738630 A GB738630 A GB 738630A GB 33178/53 A GB33178/53 A GB 33178/53A GB 3317853 A GB3317853 A GB 3317853A GB 738630 A GB738630 A GB 738630A
Authority
GB
United Kingdom
Prior art keywords
substances
quartz glass
quartz
nov
per cent
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
GB33178/53A
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.)
Heraeus Quarzschmelze GmbH
Heraeus Schott Quarzschmelze GmbH
Original Assignee
Heraeus Quarzschmelze GmbH
Heraeus Schott Quarzschmelze GmbH
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 Heraeus Quarzschmelze GmbH, Heraeus Schott Quarzschmelze GmbH filed Critical Heraeus Quarzschmelze GmbH
Publication of GB738630A publication Critical patent/GB738630A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/14—Pressing laminated glass articles or glass with metal inserts or enclosures, e.g. wires, bubbles, coloured parts
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/02—Blowing glass; Production of hollow glass articles with the mouth; Auxiliary means therefor
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/31—Blowing laminated glass articles or glass with enclosures, e.g. wires, bubbles

Abstract

738,630. Colour filters. HERAEUS QUARZSCHMELZE GES. Nov. 30, 1953 [Nov. 29, 1952], No. 33178/53. Drawings to Specification. Class 97 (1). [Also in Groups XXIII and XL (a)] A gas-discharge lamp envelope comprises two layers fused together-the outer layer being a quartz glass containing substances which selectively absorb portions of the ultra-violet range, and the inner layer is quartz glass without these substances. The inner layer protects the filter layer against premature discoloration and devitrification under the action of the vapour ions. The substances for adding to the quartz which is to form the outer layer are selected according to what particular wavelengths are to be absorbed, and the total amount of the additions is less than 0.25 per cent. The substances include oxides (and some carbides or nitrides) of Al, Ti, Zr, Ce, Th, Fe, Co, Zn, Cd, Sn, Bi, Ag and alkaline earths, or some of these metals, instead of their oxides, and copper. The amounts range from 0.003 to 0.2 per cent of the quartz. The invention is also applicable to light-filter plates, e.g. for optical purposes or for observation glasses for high-temperature furnaces.
GB33178/53A 1952-11-29 1953-11-30 Improvements in light-filtering quartz glass Expired GB738630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE738630X 1952-11-29

Publications (1)

Publication Number Publication Date
GB738630A true GB738630A (en) 1955-10-19

Family

ID=6642837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33178/53A Expired GB738630A (en) 1952-11-29 1953-11-30 Improvements in light-filtering quartz glass

Country Status (2)

Country Link
GB (1) GB738630A (en)
NL (1) NL92023C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062381A1 (en) * 1981-04-08 1982-10-13 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
US6093666A (en) * 1997-05-30 2000-07-25 Kabushiki Kaisha Toshiba Quartz glass, heat treating apparatus using quartz glass, and heat treating method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062381A1 (en) * 1981-04-08 1982-10-13 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
US6093666A (en) * 1997-05-30 2000-07-25 Kabushiki Kaisha Toshiba Quartz glass, heat treating apparatus using quartz glass, and heat treating method
US6263704B1 (en) 1997-05-30 2001-07-24 Kabushiki Kaisha Toshiba Quartz glass, heat treating apparatus using quartz glass, and heat treating method
US6399526B2 (en) 1997-05-30 2002-06-04 Kabushiki Kaisha Toshiba Heat treating apparatus using quartz glass
DE19824192B4 (en) * 1997-05-30 2007-01-25 Kabushiki Kaisha Toshiba, Kawasaki Quartz glass, process for its preparation and use

Also Published As

Publication number Publication date
NL92023C (en)

Similar Documents

Publication Publication Date Title
GB1010513A (en) Improvements in or relating to crystalline glass and to methods of making the same
ES8205467A1 (en) Photochromic glass for spectacle lenses and production thereof.
ES400272A1 (en) Soda-silica glass
GB1345294A (en) Glass-ceramic articles
SE7704049L (en) GLASS COMPOSITION
US3798041A (en) Optical glass having anomalous dispersion properties
GB1002688A (en) Yellow glass bead compositions
GB1517077A (en) Silicate glass lens
US4525462A (en) Dark blue dyed furnace sight glass with high infrared absorption
GB738630A (en) Improvements in light-filtering quartz glass
GB1374563A (en) Optical glass and process for its production
FR2331527A1 (en) Brown tinted glass compsn. - for reducing heat and UV transmission
ES389271A1 (en) Heat protective tinted or coloured silica-soda-lime glass
GB1037247A (en) High titanate glasses
CS214771B2 (en) Borideless glass with high refraction index
GB455082A (en) Improvements in borosilicate glass containing cerium
GB725206A (en) Optical glass
US3754816A (en) Steep-edge absorption filter
US2282601A (en) Yellow glass composition
ES8301184A1 (en) Yellow-green glasses absorbing ultraviolet radiations, process for making them, and their use in the making of containers.
PL81473B1 (en)
JPS565349A (en) Color ceramic and color frit composition
SU637347A1 (en) Optical glass
JPS55126547A (en) Glass for bead
GB293310A (en) An improved manufacture of tinted glass