GB1090624A - Illuminated devices - Google Patents

Illuminated devices

Info

Publication number
GB1090624A
GB1090624A GB3396665A GB3396665A GB1090624A GB 1090624 A GB1090624 A GB 1090624A GB 3396665 A GB3396665 A GB 3396665A GB 3396665 A GB3396665 A GB 3396665A GB 1090624 A GB1090624 A GB 1090624A
Authority
GB
United Kingdom
Prior art keywords
sheet
transparent
layer
varnish
balls
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
GB3396665A
Inventor
Norman Frederick Kells
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.)
PERTINT Ltd
Original Assignee
PERTINT 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 PERTINT Ltd filed Critical PERTINT Ltd
Priority to GB3396665A priority Critical patent/GB1090624A/en
Publication of GB1090624A publication Critical patent/GB1090624A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/184—Information to display
    • G09F2013/1854—Light diffusing layer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

1,090,624. Light pipes. PERTINT Ltd. Aug. 9, 1965, No. 33966/65. Heading G2J. [Also in Division G5] An edge-illuminated transparent sheet 2 has bonded thereto a transparent layer of small light-reflective beads such that the refractive index from sheet to air is changed to that from the sheet to the layer. As shown a transparent motif 4 is printed on the front face of a polymethyl methacrylate sheet 2 on the back of which a layer of reflective glass balls 6 is embedded in transparent varnish 7. The balls are covered by a further layer of varnish.
GB3396665A 1965-08-09 1965-08-09 Illuminated devices Expired GB1090624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3396665A GB1090624A (en) 1965-08-09 1965-08-09 Illuminated devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3396665A GB1090624A (en) 1965-08-09 1965-08-09 Illuminated devices

Publications (1)

Publication Number Publication Date
GB1090624A true GB1090624A (en) 1967-11-08

Family

ID=10359682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3396665A Expired GB1090624A (en) 1965-08-09 1965-08-09 Illuminated devices

Country Status (1)

Country Link
GB (1) GB1090624A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164138A (en) * 1981-11-07 1986-03-12 Kei Mori Apparatus for uniform illumination employing light diffuser
GB2170031A (en) * 1985-01-18 1986-07-23 Ledan Inc Edge lighted display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164138A (en) * 1981-11-07 1986-03-12 Kei Mori Apparatus for uniform illumination employing light diffuser
GB2170031A (en) * 1985-01-18 1986-07-23 Ledan Inc Edge lighted display device

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