GB733978A - Improvements in cases for gas-discharge lamps - Google Patents

Improvements in cases for gas-discharge lamps

Info

Publication number
GB733978A
GB733978A GB27248/53A GB2724853A GB733978A GB 733978 A GB733978 A GB 733978A GB 27248/53 A GB27248/53 A GB 27248/53A GB 2724853 A GB2724853 A GB 2724853A GB 733978 A GB733978 A GB 733978A
Authority
GB
United Kingdom
Prior art keywords
gas
discharge lamps
cases
purity
ges
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
GB27248/53A
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 GB733978A publication Critical patent/GB733978A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • C04B33/06—Rendering lime harmless
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/30—Drying methods
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Compositions (AREA)

Abstract

733,978. Discharge lamps. HERAEUS QUARZSCHMELZE GES. Oct. 5, 1953 [March 25, 1953], No. 27248/53. Class 39 (1). [Also in Group XXIII] A case for a gas-discharge lamp is made of quartz glass of a degree of purity greater than that required for transmitting the required amount of radiation. The greater purity gives a longer working life.
GB27248/53A 1953-03-25 1953-10-05 Improvements in cases for gas-discharge lamps Expired GB733978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE733978X 1953-03-25

Publications (1)

Publication Number Publication Date
GB733978A true GB733978A (en) 1955-07-20

Family

ID=6641234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27248/53A Expired GB733978A (en) 1953-03-25 1953-10-05 Improvements in cases for gas-discharge lamps

Country Status (4)

Country Link
BE (1) BE523367A (en)
FR (1) FR1088864A (en)
GB (1) GB733978A (en)
NL (1) NL181905C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5236483A (en) * 1985-07-16 1993-08-17 Seiko Epson Corporation Method of preparing silica glass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5236483A (en) * 1985-07-16 1993-08-17 Seiko Epson Corporation Method of preparing silica glass

Also Published As

Publication number Publication date
FR1088864A (en) 1955-03-11
NL181905C (en)
BE523367A (en)

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