GB740778A - Improvements in indicating apparatus embodying electroluminescent material - Google Patents

Improvements in indicating apparatus embodying electroluminescent material

Info

Publication number
GB740778A
GB740778A GB17650/53A GB1765053A GB740778A GB 740778 A GB740778 A GB 740778A GB 17650/53 A GB17650/53 A GB 17650/53A GB 1765053 A GB1765053 A GB 1765053A GB 740778 A GB740778 A GB 740778A
Authority
GB
United Kingdom
Prior art keywords
apparatus embodying
electroluminescent material
indicating apparatus
june
moisture
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
GB17650/53A
Inventor
Cyril Hubert Walker
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB17650/53A priority Critical patent/GB740778A/en
Publication of GB740778A publication Critical patent/GB740778A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/02—Details
    • H05B33/04—Sealing arrangements, e.g. against humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

740,778. Electroluminescence. BRITISH THOMSON-HOUSTON CO., Ltd. June 21, 1954 [June 25, 1953], No. 17650/53. Drawings to Specification. Class 39 (1). A desiccating agent, e.g. silica gel, is included in the sealed casing of an electroluminescent indicating device to absorb trapped moisture. The casing is of polythene or an acrylic resin, its joints coated with a moisture-impermeable adhesive of varnish. Specifications 731,677 and 733,353 are referred to.
GB17650/53A 1953-06-25 1953-06-25 Improvements in indicating apparatus embodying electroluminescent material Expired GB740778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17650/53A GB740778A (en) 1953-06-25 1953-06-25 Improvements in indicating apparatus embodying electroluminescent material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17650/53A GB740778A (en) 1953-06-25 1953-06-25 Improvements in indicating apparatus embodying electroluminescent material

Publications (1)

Publication Number Publication Date
GB740778A true GB740778A (en) 1955-11-16

Family

ID=10098873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17650/53A Expired GB740778A (en) 1953-06-25 1953-06-25 Improvements in indicating apparatus embodying electroluminescent material

Country Status (1)

Country Link
GB (1) GB740778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011123987A1 (en) * 2010-04-09 2011-10-13 绎立锐光科技开发(深圳)有限公司 Encapsulation structure and method for light wavelength converting material, and led

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011123987A1 (en) * 2010-04-09 2011-10-13 绎立锐光科技开发(深圳)有限公司 Encapsulation structure and method for light wavelength converting material, and led

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