GB1284113A - Improvements relating to signs - Google Patents

Improvements relating to signs

Info

Publication number
GB1284113A
GB1284113A GB4148669A GB4148669A GB1284113A GB 1284113 A GB1284113 A GB 1284113A GB 4148669 A GB4148669 A GB 4148669A GB 4148669 A GB4148669 A GB 4148669A GB 1284113 A GB1284113 A GB 1284113A
Authority
GB
United Kingdom
Prior art keywords
panel
edge
light
coated
reflecting material
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
GB4148669A
Inventor
Dmitry Ivanovich Ageikin
Anatoly Ivanovich Galaktionov
Viktor Nikolaevich Sakovich
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.)
INST AVTOMATIKI I TELEMEKHANIK
Original Assignee
INST AVTOMATIKI I TELEMEKHANIK
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 INST AVTOMATIKI I TELEMEKHANIK filed Critical INST AVTOMATIKI I TELEMEKHANIK
Priority to GB4148669A priority Critical patent/GB1284113A/en
Publication of GB1284113A publication Critical patent/GB1284113A/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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements

Landscapes

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

Abstract

1284113 Edge-illuminated display panels INSTITUT AVTOMATIKI I TELEMEKHANIKI TEKHNICHESKOI KIBER. NETIKI 20 Aug 1969 41486/69 Heading G5C A sign is formed by a panel 1 the edge 3 of which is bevelled and coated with a light-reflecting material so that light from a source 4 lying in the plane of the panel is reflected in part towards an observer looking in the direction of the arrow A, and in part back into the panel. The edge 3, which coincides with and forms the outline of a pattern, may be coated with white enamel, and a cylindrical filter 5 may be used to colour the reflected light. A cover sheet 7 may be of glass, or of metal sheet having an openings corresponding to the pattern formed by the bevelled edge 3. A layer 8 of background paint may be applied to the sheet 1. The bevelled edge may form only a part of the pattern, a layer (13) of light-reflecting material being applied to the whole of the back of the panel (9), Figs. 3-4 (not shown); and there may be more than one light source (14). Alternatively, Fig. 6, a rear edge surface 17 of the panel is curved parabolically and coated at 18 with light-reflecting material, a lamp 20 lighting the panel through an end face 19, a line pattern formed by the edge surface 17 being viewed through an uncoated opposite edge surface 16.
GB4148669A 1969-08-20 1969-08-20 Improvements relating to signs Expired GB1284113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4148669A GB1284113A (en) 1969-08-20 1969-08-20 Improvements relating to signs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4148669A GB1284113A (en) 1969-08-20 1969-08-20 Improvements relating to signs

Publications (1)

Publication Number Publication Date
GB1284113A true GB1284113A (en) 1972-08-02

Family

ID=10419915

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4148669A Expired GB1284113A (en) 1969-08-20 1969-08-20 Improvements relating to signs

Country Status (1)

Country Link
GB (1) GB1284113A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004838A1 (en) * 1983-05-26 1984-12-06 Ulf Henke An arrangement for a display device which can be acted upon by light and is provided with a display surface
US5893226A (en) * 1997-11-04 1999-04-13 Sophocleous; Sophocles S. Assistance summoning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004838A1 (en) * 1983-05-26 1984-12-06 Ulf Henke An arrangement for a display device which can be acted upon by light and is provided with a display surface
US5893226A (en) * 1997-11-04 1999-04-13 Sophocleous; Sophocles S. Assistance summoning device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees