GB2462008A - A sign back-lighted by LEDs through a planar light-guide and a reflective surface - Google Patents

A sign back-lighted by LEDs through a planar light-guide and a reflective surface Download PDF

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Publication number
GB2462008A
GB2462008A GB0912915A GB0912915A GB2462008A GB 2462008 A GB2462008 A GB 2462008A GB 0912915 A GB0912915 A GB 0912915A GB 0912915 A GB0912915 A GB 0912915A GB 2462008 A GB2462008 A GB 2462008A
Authority
GB
United Kingdom
Prior art keywords
sign
light
guide
self
vehicle
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.)
Withdrawn
Application number
GB0912915A
Other versions
GB0912915D0 (en
Inventor
John Stewart Oppenshaw
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.)
L T G W Ltd
Original Assignee
L T G W 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 L T G W Ltd filed Critical L T G W Ltd
Publication of GB0912915D0 publication Critical patent/GB0912915D0/en
Publication of GB2462008A publication Critical patent/GB2462008A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/56—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for illuminating registrations or the like, e.g. for licence plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/503—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/10—Registration, licensing, or like devices
    • 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
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0018—Redirecting means on the surface of the light guide
    • 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
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

An illuminable sign 1 comprises a light-guide 2 which takes the form of a relatively planar sheet of material having front and rear surfaces 3, 4, the light-guide sheet being generally transparent and having an interrupted 7 rear surface, a reflective coating / mirror 17 being provided adjacent/on the rear surface, the sign being illuminated when LEDs 10 emit light which then impacts the interrupted surface and the reflective coating and passes through the front face to back-light up signage 15 on/adjacent the front surface. Preferably the interruptions / deformations on the surface take the form of grooves / ribs / score lines, while the diode light preferably enters the light-guide from the side to reflect off the grooves and the reflective plate. Ideally, a vehicle registration plate is located on / ahead of the front face of light-guide. The planar sheet may be made of plastic or glass, and may possess a slot 8 with a PCB within.

Description

Title of the invention
Illuminatable signs
Field of the Invention
This invention relates to an illuminatable sign such as a vehicle number plate, a road sign, an emergency exit sign etc.
Background of the Invention
In the UK, whilst there is a legal requirement to mount vehicle number plates on both the front and the rear of a vehicle (and also in the case of a trailer on the rear of a trailer), there is only a legal requirement for an illumination facility to be provided for the rear number plate, and to meet this requirement vehicle manufacturers have been obliged to provide at least one lamp holder, or light housing, adapted to hold at least one replaceable lamp (usually of S watt), with an connection to the electrical system of the vehicle In most instances the rear number plate is only illuminated when the driver turns on the, side and/or headlights., although some manufacturers provide day rUnning lights. Whilst the lamp(s) is/are intended to illuminate the entire number plate; and effective illumination is achieved, in the vicinity of the lamp(s), clearly, the illumination of certain areas of the number plate diminishes proportionally to the distance of those areas from the lamp(s).
It follows that, with' the absence of a legal requirement to illuminate a front number plate, manufacturers understandably refrain from incurring the avoidable costs of providing an illumination facility, such that front number plates with their propensity for grime pick-up from preceding vehicles are frequently difficult to read either manually e.g. by the police, or automatically by speed cameras, toll cameras etc. In addition, all lamps are prone to eventual filament failure involving maintenance costs, and the driver may or may not be aware of such failure, rendering even a supposedly illuminated rear number plate difficult to read with certainty.
All road signs, whether permanent, or temporary during road works, are also required to be illuminated in hours of darkness and again this is by shining an associated lamp(s) on to the sign, inevitably resulting in a mixed level of illumination over the area of the sign.
Also in the UK, there is a requirement to illuminate certain signs, such as emergency exit signs of all manner of buildings Again illumination has been by one or more lamps connected to the main supply of a building and also an emergency backup supply, and illumination of areas distant from the lamp(s) will be with mixed success Again, such emergency and other signs require maintenance i e regular and conscientious checking so that the lamp(s) function in an emergency situation, with a facility for the, replacement of failed lamps.
Object of the invention A basic object of the present invention is the provision of an improved illuminatable siri capable of illuminating with certainty the entire area of the sign, and which in addition is maintenahce free.
Summary of a First Aspect of the Invention
According to a first aspect of the invention there is provided an illuminatable sign comprising a relatively thin, planar sheet or strip of self-supporting material having a front surface and a rear surface, characterised in that (i) the self-supporting material is transparent., or semi-transparent, with an interrupted surface: (ii) signage is carried directly, or indirectly, by the front surface of the self-supporting material; (iii) at least one: L.E.D. light source is associated with the self-supporting material which light source, upon provision of electrical power, serves to dissipate and diffuse light into the self-supporting material, resulting in internal illumination of the entire sign aided by the surface interruption; (iv) a reflective sheet provided at or adjacent the rear surface, and (v) means is provided to connect the L.E.D.(s) to a source of electrical power.
Summary of a Sedond Aspect of the Invention
According to a second aspect of the invention there is provided a motor vehicle or trailer provided with at least one number plate constructed in accordance with the sign defined in the first aspect.
Advantages of the Invention Illumination of the sign in accordance with the invention is, unlike most prior proposals, not dependent on an associated lamp, but rather is self-illuminating, the sign being capable of illumination over its entire area to the same intensity, thus avoiding any partially illuminated zones, yet is totally maintenance free.
With the sign in the form of a vehicle number plate, the invention provides a vehicle number plate/vehicle capable of being filled not onlyto the rear but also to the front of the vehicle and which number plate, unless accident damaged, has a life (typically of 16 years or longer) that would normally exceed the life of the vehicle.
The invention also provides vehicle manufacturers with an opportunity to design the rear of vehicles without the need to incorporate rear number plate light housing.
The signage may be of a mandatory, warning or emergency nature, and may be lettering, insignia numerals, graphics, or a mixture of these, as required by the user.
Preferred or Optional Features of the Invention The self-supporting material is a sheet or strip of synthetic plastics.
The synthetic plastics is acrylic.
The synthetic plastics is PerspexTM The synthetic plastics self-supporting sheet is of 6mm to 8mm thickness.
The self-supporting matérial is glass, which is more durable than an acrylic for say an exit/emergency exit sign in a building if the building could present a fire hazard.
The self-supporting matérial is etched glass.
The signage consists of a coloured or printed layer of material designed to show light to varying degrees to achieve an illuminatable signage effect The sign is constructed as a multi-layer laminate seCured together by adhesive.
In an embodiment where the signage is applied indirectly toThe self-supporting material, it is applied to a transparent, or semi-transparent signage, sheet or layer, with the latter itself then applied to the front surface of the self-supporting material.
The signage sheet is of synthetic plastics.
The signage, for a vehicle number plate, is black lettering on the signage sheet of sufficient density to limit light transmission therethrough so that its appearance is solid black.
The signage sheet is secured to the front surface of the self-supporting layer by adhesive.
S
To the front surface of the signage layer is applied a protective layer.
Apart from providing physical protection, the protective layer is provided with a U.V or l.R. screen or filter to shield the signage from deterioration.
The protective layer is secured to the signage layer by adhesive.
The protective layer is of synthetic plastics.
To the rear surface of the self-supporting sheet is applied the reflective layer.
The reflective sheet is secured by a front surface thereof to the self-supporting layer by adhesive.
The reflective sheet not only reflects light from the L,E.D.s, but is also retro-reflective to show light from an external source, such as vehicle headlights.
To a rear surface of the reflective layer is applied a protective backing.
The protective backing is secured to the rear surface of the reflective layer by adhesive.
All the various layers making up the laminated sign are of the same size and profile.
The sign is provided with drilled mounting holes or other attachment/mounting means.
The sign is rectangular.
The sign is oblong.
The sign is circular.
The sign is triangular.
The interrupted surface is the rear surface of the self-supporting material.
The surface interruption is provided by at least one surface score line.
If the self-supporting material is synthetic plastics, the score line(s) is/are cut into the rear surface.
if the self-supporting material is glass, the score line(s) Is/are elched into the rear surface.
The surface InterruptIon Is provided by multiple, parallel score lines, typically spaced apart by 1.5 mm.
The score lines extend end-to-end along, and across, the self-supporting plate.
The score lines extend diagonally across the self-supporting plate.
The surface Eiterruption is provided by multiple protuberances, projections, blisters or dimples.
Multiple LE.D.s e.g. 6-10 are provided.
A strip of electrically interconnected L.Efls are mounted on a common circuit board.
The circuit board Is provided with in-line resistors to regulate power delIvery.
LE.D.s we provided at one perimeter area, or multiple perimeter areas of the sign.
LE.D.s are provided along one and/or both ends of a rectangular or oblong sign.
LE.D.s are provided along the top and/or bottom of a rectangular or oblong sign.
The, or each LED. Is mounted In a cavity or groove machined, moulded, or cast into the self-supporting material.
The cavity or groove is provided in the rear surface of the self-supportiig material.
The cavltyorgroove isclosed off bythe application ofasealant such asa silicone or bitumous product, whereby the LE.D. is weatherproof.
The, or each LE.D. emits white visible light.
The, or each LE.D. emits non-white e.g. yellow, red, green, blue visible light.
With the sign in the form of a vehicle number plate, the, or each LE.D. emits Infra-red radiation (invisible to the naked eye) to enable police or other cameras to detect/read the number plate irrespective of conditions.
WIth the sign in the form of a vehicle number plate, the number plate Is provided with at least one white light emitting L.E.D., and at least one iR emitting L.E.D.
With the sign in the form of a vehicle number plate, also mounted In the same cavity as that accommodating the LE.D.s, or a different cavity or groove, is a vehicle ID number cNp capable of interrogation.
The source of electrical energy is a vehicle electrical system, if the sign is In the form of a vehicle mounted number plate.
The source of electrical energy is a solar panel(s) attached to, or integral with the sign.
The source of electrical energy Is a battery.
The battery Is of a rechargeable idnd.
Connection to the vehicle electrical system is such that the number plate is illuminated Laider the control of the driver, typicafly upon switching on the side or headlights.
AlternatIvely, connection to the vehicle electrical system Is such that constant illumination is provided, irrespective of whether the side light or headlights are switched on or off. A typical number plate In accordance with the first aspect of the invention has been found to consume 3 watts compared for example with two 5 watt lamps of a conventional rear vehicle iflumination system.
Brief Description of the Drawings
As sign in accordance with the first aspect of the invention will now be described by way of example only in the accompanying drawings, in which Figure 1 is an exploded perspective view of an illuminatable sign in accordance with the invention, in an embodiment suitable as a vehicle number plate; Figure 2 is a diagrammatic, part-sectional view through a portion of an assembled sign; and Figure 3 is a dagrammatic view on one end of a ROB. carrying the L.E.D.s and a resistor.
In the drawings, an illuminatable sign (1) consists of laminate of five sheets or strips, secured together by adhesive, as follows.
The principal component of the sign (1) is a central, self-supporting strip (2) of PerspexTM or other transparent, or semi-transparent acrylic, having a front surface (3) and a rear surface (4), the strip (2) being oblong, of standard vehicle number plate dimensions and thus having opposite ends (5) and top end and bottom edges (6) The rear surface (4)is provided with a plurality of parallel score lines (7) which may be criss-crossed, asindicated in Figure 1, or may be asa grid with some score lines parallel to the top and bottom edges 6, and orthogonal score lines parallel to the end (5). The front surface could also be scored, but is preferably plain.
Adjacent each end (5) is machined or moulded a transverse groove (8) which does not break through to the front surface (4) Into the groove (8) is pushed a P C B (9) carrying typically sx L.E.D.s (10) for this vehicle number plate embodiment, and a resistor (11), and provided with electrical leads (12) for connection to any suitable form of electridal power eg. the electrical system of the vehicle to whibh the number plate is fitted The relative dimensions are such that the P C B and its components engage at least some walls of the groove, so as to be gripped by the groove rather than being free to float within the groove. A water and weatherproof sealant (not shown) is then applied e.g. by an industry-standard gum to the P.C.B., to close off the groove. As indicated, a secQnd groove or slot (8) may be provided at the other end of the strip (2) for alternative location of the P.CB. strip, or for the location of a second P.C.B. strip, so that when powered, illumination is provided from both ends of the strip.
Signage, in the form of a vehicle registration number, is printed on a signage strip (13) e.g. of thin flexible plastics e.g. P.V.C., with a rear surface (14) of the strip (13) provided with adhesive to make contact with the front surface (3) of the self-supporting strip (2), thereby to apply the signage indirectly to the self-supporting strip (2).
To a front face of the strip (13) is secured a protective strip (15) provided as a rear surface (16) with adhesive to make contact with the front surface of the strip (13), the strip (15) not only protecting the signage against minor physical damage such as scratches, or store damage from other vehicles, but also with UVIIR filter(s) to protect the signage from deterioration.
To the rear surface (4) of the strip (2) is applied a reflective strip (17), again being secured by a suitable adhesive.
Finally, to rear surface (18) of the reflective strip (17) is applied a protection strip (19) e.g. of P.V.C., again being secured to the reflective strip by adhesive, the electrical leads (12) passing through the various strips for connection to a suitable source of electrical power.
GB0912915A 2008-07-25 2009-07-24 A sign back-lighted by LEDs through a planar light-guide and a reflective surface Withdrawn GB2462008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0813608.7A GB0813608D0 (en) 2008-07-25 2008-07-25 Vehicle number plate

Publications (2)

Publication Number Publication Date
GB0912915D0 GB0912915D0 (en) 2009-08-26
GB2462008A true GB2462008A (en) 2010-01-27

Family

ID=39746903

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0813608.7A Ceased GB0813608D0 (en) 2008-07-25 2008-07-25 Vehicle number plate
GB0912915A Withdrawn GB2462008A (en) 2008-07-25 2009-07-24 A sign back-lighted by LEDs through a planar light-guide and a reflective surface

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0813608.7A Ceased GB0813608D0 (en) 2008-07-25 2008-07-25 Vehicle number plate

Country Status (1)

Country Link
GB (2) GB0813608D0 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013073834A (en) * 2011-09-28 2013-04-22 Daisaku Kaneko Lighting apparatus for backlit number plate with character
WO2015104331A3 (en) * 2014-01-10 2016-03-03 Novomatic Ag Lighting system
CN111765405A (en) * 2020-07-30 2020-10-13 福耀玻璃工业集团股份有限公司 Integrated luminous glass

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2247969A (en) * 1937-12-31 1941-07-01 Adlake Co Edge glow lighting system
US5786665A (en) * 1995-05-23 1998-07-28 Sharp Kabushiki Kaisha Plane-shaped lighting device and a display using such a device
US20010049893A1 (en) * 2000-01-06 2001-12-13 Maas Theodorus Mattheus Maria Luminaire and light-emitting panel
US20030117793A1 (en) * 2001-12-24 2003-06-26 Shin Hyun Ho Backlight unit
US20070006493A1 (en) * 2003-05-12 2007-01-11 Arnold Eberwein Illuminated license plate for vehicles and vehicle provided with the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2247969A (en) * 1937-12-31 1941-07-01 Adlake Co Edge glow lighting system
US5786665A (en) * 1995-05-23 1998-07-28 Sharp Kabushiki Kaisha Plane-shaped lighting device and a display using such a device
US20010049893A1 (en) * 2000-01-06 2001-12-13 Maas Theodorus Mattheus Maria Luminaire and light-emitting panel
US20030117793A1 (en) * 2001-12-24 2003-06-26 Shin Hyun Ho Backlight unit
US20070006493A1 (en) * 2003-05-12 2007-01-11 Arnold Eberwein Illuminated license plate for vehicles and vehicle provided with the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013073834A (en) * 2011-09-28 2013-04-22 Daisaku Kaneko Lighting apparatus for backlit number plate with character
WO2015104331A3 (en) * 2014-01-10 2016-03-03 Novomatic Ag Lighting system
CN106062467A (en) * 2014-01-10 2016-10-26 挪佛麦迪哥股份公司 Lighting system
US9939574B2 (en) 2014-01-10 2018-04-10 Novomatic Ag Lighting system
US10338301B2 (en) 2014-01-10 2019-07-02 Novomatic Ag Lighting system
CN111765405A (en) * 2020-07-30 2020-10-13 福耀玻璃工业集团股份有限公司 Integrated luminous glass
CN111765405B (en) * 2020-07-30 2021-11-19 福耀玻璃工业集团股份有限公司 Integrated luminous glass

Also Published As

Publication number Publication date
GB0912915D0 (en) 2009-08-26
GB0813608D0 (en) 2008-09-03

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