EP2837874A2 - Dispositifs photoluminescents qui conviennent à une large gamme d'applications - Google Patents

Dispositifs photoluminescents qui conviennent à une large gamme d'applications Download PDF

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Publication number
EP2837874A2
EP2837874A2 EP14001787.2A EP14001787A EP2837874A2 EP 2837874 A2 EP2837874 A2 EP 2837874A2 EP 14001787 A EP14001787 A EP 14001787A EP 2837874 A2 EP2837874 A2 EP 2837874A2
Authority
EP
European Patent Office
Prior art keywords
photoluminescent
strip
photoluminescent device
extruded
light
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Withdrawn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
EP14001787.2A
Other languages
German (de)
English (en)
Other versions
EP2837874A8 (fr
EP2837874A3 (fr
Inventor
designation of the inventor has not yet been filed The
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.)
Glowroute Products Ltd
Original Assignee
Glowroute Products 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 Glowroute Products Ltd filed Critical Glowroute Products Ltd
Publication of EP2837874A2 publication Critical patent/EP2837874A2/fr
Publication of EP2837874A8 publication Critical patent/EP2837874A8/fr
Publication of EP2837874A3 publication Critical patent/EP2837874A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/072—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements
    • E04F13/074—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F2011/1046—Miscellaneous features of treads not otherwise provided for
    • E04F2011/1048—Miscellaneous features of treads not otherwise provided for with lighting means

Definitions

  • the invention relates generally to photoluminescent devices, and more particularly to photoluminescent devices which can be easily and readily installed practically in/with almost any structure (buildings, ships, modular structures, prefabs, rigs, platforms, stages, mines, tunnels, subterranean networks and structures, outdoor pathways, vehicle, craft, etc) in order to provide a light source during low level lighting or darkness.
  • a number of photoluminescent devices are known in prior art for providing aesthetic features to a building or an ambience. Also the photoluminescent devices are known in prior art which are used for emergency exits.
  • None of the known devices in prior art provides a solution for installing the devices ubiquitously, easily and readily in any structure in such a way as to be inconspicuous, innocuous to a particular ambience under normal light.
  • the devices disclosed herein are designed to be seamlessly harmonized into practically all structures, from its ability to sit with covings, architraves and skirtings, to being included commonly in tongue and grooved structures such as floors, paneling, tiles, etc and as glazing beading for windows and doors.
  • the photoluminescence element of the devices has a long decay time (typically 8 hours)
  • the result is a low cost light source with a high degree of fail-safeness.
  • Light may be propagated to the photoluminescent component of the device by use of light fibre, from where light is transported along the photoluminescent device by use of attenuating (lossy strings) so as to distribute the light along the length of photoluminescent device, or by use of solar cells to capture ambient light for storage and distribution in the photoluminescent device, or by use of battery power to pulse light to the photoluminescent device and by use of electrical transformers to power light source.
  • electrical energy is used to create a light source, it means we can use that light source for short amounts of time (e.g. 5 minutes) to create a long-lasting, low energy light form our photoluminescent device. This is one of the aspects which is not there in the existing photoluminescent devices known in prior art.
  • Another major drawback of the devices in the prior art is the limitation in their universality of application. In other words, they can only be fitted in their exclusive actuality and only in certain areas, as they lack mechanical flexibility of use and usage. Also devices in prior art are limited to the surfaces and strata which they can be affixed to. Most of those conventional devices are of a fixed and determined length and structure, giving them a determined use only. Most of the devices in prior art demand extensive and elaborate preparation, tools and skills for installation. Usually these devices require special preparation of surface and a flat or homogenous surface to receive fixing.
  • None of the known devices in prior art are designed to provide aesthetic value to an ambience and not to disturb/spoil the original look of an ambience. They are non-aesthetically designed i.e., they have visual protuberances and are unsightly, and hence are unsuitable for common environments which are designed to be pleasing to the eye.
  • the invention provides photoluminescent devices which can be easily, readily and safely installed practically in/with almost any structure/place (buildings, ships, modular structures, prefabs, rigs, platforms, stages, mines, tunnels, subterranean networks and structures, outdoor fields, vehicle, craft, etc) in order to provide a light source during low level lighting or darkness.
  • the advantages of the devices disclosed and described herein as invention over devices in prior art are manifold.
  • the devices in the invention are designed such that they may be used as an aesthetic light source as well as being a customary and habitual light source and more importantly as an emergency failsafe light source. All the devices are aesthetically designed to be inconspicuous and innocuous during ambient light, and are only noticeable in low level light or dark situations. Also they are aesthetically designed such as to be used for cosmetic and artistic reasons such as covering poor workmanship in a joint or covering over cracks, damp or discolouration. Also the devices can be packed as rolls for ease of transportation and installation/application. As they come in rolls they can be of indeterminate length. They may also be coiled. Most of the devices are designed to be easily retro-fitted.
  • Another advantage of the devices in the invention is where a porous surface prevents the use of the self-adhesive strip, the device(s) is/are configured so as to easily accept an appropriate mastic.
  • the devices disclosed are also designed to be resilient, strong and durable while still being very flexible with a degree of rigidity to give it workable substance, giving the devices the ability to be used on a range of surfaces and strata and environments, which is not possible with devices in prior art.
  • Such features make these devices fit to be used in mines, caves, tunnels, natural and man-made subterranean structures and listed buildings. Because of the inherent nature of the devices, they are strong enough to take screws and fixings while still maintaining its flexibility. Such feature allows it to be used in mines, caves, tunnels, natural and man-made subterranean structures and listed buildings where its self adhesive nature may be unsuitable, unnecessary, superfluous or inadequate.
  • a further advantage of the invention is that due to the nature of the devices they can be easily cut to produce practically any shape, allowing the negative space to be used as the indicators.
  • the devices can be mitered with a standard scissors, contributing to its aesthetic, artistic or cosmetic application.
  • Another advantage is that the devices can be used in buildings where invasive fittings are forbidden or prohibitively expensive, e.g., aquaria, glass walls, walls where there may be pipes or cable hidden behind, etc.
  • Another major advantage of the devices is reusability. These devices are designed to be reusable. By virtue of its flexible nature and resilient constitution the devices may be pulled off from its position (say for purposes of painting the wall) and can be re-stuck by application of a mastic or adhesive.
  • Another major advantage of the invention is that due to the simplicity of the devices, they can be manufactured to meet atmosphere explosive ATEX regulations (94/9/EC Directive).
  • Another advantage of the invention is that the devices can be made antimicrobial by using chemical such as silver ion additive.
  • Another advantage is that by use of solar cells, micro wind and wave energy as a power source, long lighting times are available for short bursts of energy, so in effect it is creating a light storage and release system. This also allows use where conventional AC power is not available.
  • This lip is an important aspect of the device 1 and has at least 5 purposes: a) it protects the adhesive from cleaning agents and the environment, b) it prevents the product from being a trip hazard when on the floor or a snag hazard, c) it reduces ability for micro biota, flora, fauna and dust to nestle in or on product, therefore making it cleaner and pro-active in its cleanliness, d) the exterior visible curve of the lips presents a homogenous finish to the strip which diffuses light and is a significant contribution to its aesthetic finish, e) it is easy to clean (this is important as washability is a criteria used in many regulations for safety lighting e.g., New York Building Safety Code 6-1).
  • a thin double-sided adhesive tape 3 is employed to fix or attach the photoluminescent device 1 to substratum 4.
  • Other means such as glue or mastic or bolt or screw or U-pin or combination of the said means for fixing or attaching the strip to substratum like wall or floor of a building.
  • the device contains a photoluminescent capability due to presence of photoluminescent chemical pigments known in prior art for providing a light source in a low level light environment. This photoluminescent capability is an important aspect in all devices disclosed in this Invention.
  • the device 1 can be made antimicrobial by using chemical such as silver ion additive.
  • the devices may be used as a temporary rope type light without being attached to anything for the sake of marking a path or area, and rolled up again after use.
  • the device 1 may be stuck back-to-back on an identical length of itself such that it forms a photoluminescent strap or rope.
  • Fig 1b there is shown a top view of the elongated extruded photoluminescent device 1 with a printed arrow 12 for directional purposes and the light diffusing edge of the upper part of the lips 15.
  • the head of a screw 5, bolt 51 and u-pin 52 are shown as possible manners of fixing the photoluminescent device 1 to different types of sub-strata.
  • FIG. 2 there is shown a head on view of an elongated extruded photoluminescent device 1 without lips.
  • a thin double-sided adhesive tape 3 is employed to fix or attach the photoluminescent device 1 to substratum 4.
  • a screw 5, bolt 51 and u-pin 52 are shown as possible manners of fixing the photoluminescent device 1 to different types of sub-strata.
  • FIG. 3 there is shown head on view of an elongated extruded photoluminescent device 1 with lips 2 at longitudinal edges and a score/groove 6 running longitudinally through it.
  • This score 6 is additional aspect to the device 1 shown in Fig.1 .
  • a thin double-sided adhesive tape 3 is employed to fix or attach the photoluminescent device 1 to substratum.
  • the elongated extruded photoluminescent strip of the device 1 with score 6 can be made concave within/inside to facilitate accurate folding of the same.
  • the presence of score 6 running longitudinally as an axis of the strip facilitates accurate folding without distortion of the photoluminescent strip.
  • the flat photoluminescent strip of device 1 with score 6 running lengthwise gives the device 1 the ability to fold easily and precisely, so that it may be applied to corners and curves including spatial curves.
  • Such strip is designed practically to fit onto any 2 plane corner with an angle lying between 10 and 350 degrees.
  • score facilitates the folding of the plastic without distortion, as without the score the memory of the plastic would either pull or push the resultant folded shape back to its original flat self.
  • This photoluminescent strip, with score 6, may be without lips as shown in Fig. 4 .
  • FIG. 3b there is shown an isometric view of an elongated extruded photoluminescent device (shown in Fig. 3 ) folded away from the score 6 with a thin double-sided adhesive tape 3 employed to fix or attach the photoluminescent device 1 and the light diffusing edge of the upper part of the lips 15.
  • Fig. 3c is a side view an elongated extruded photoluminescent device (shown in Fig.3 ) folded back on the score 6 and with a thin double-sided adhesive tape 3 showing with the lips 2 standing proud of the tape 3.
  • FIG. 5 there is shown a cross-sectional view of photoluminescent device 1A wherein a co-extruded photoluminescent strip 7 is on the top of extruded non-photoluminescent substrata 8.
  • the device 1A can be fixed or attached to main substrata with double-sided adhesive tape 3. Fixing means such as glue can be used.
  • the co-extruded photoluminescent strip 7 may or may not have lips 2 at longitudinal edges pressing against the main substrata such as wall or floor of a building.
  • a concave back 9 is created between the extruded non-photoluminescent substrata 8 and corner of two walls (main substrata) for passage of cable underneath it and to allow a certain amount of flexibility along its axis or/and application of mastic.
  • the two sides of non-extruded substrata, which are supposed to engaged with main substrata during use, are perpendicular to each other.
  • the concave back 9 can be of any shape or design.
  • the photoluminescent strip 7 may not have continuous or/and regular photoluminescent feature.
  • Fig 5a there is shown an isometric view of the device 1A.
  • the top part of the device 1A which will be exposed when used may be convex or concave or plane or any design.
  • the lips 2 can be seen to stand proud of the self adhesive tape 3 and thereby press against the main substrata.
  • the upper part of the lips 15 diffuse light by means of their roundness.
  • FIG. 6 there is shown a cross-sectional view of a co-extruded device 1A in the Cavetto shape without concave back (full bodied) and lips.
  • the photoluminescent strip 7 is on the top of non-photoluminescent extruded substrata 8.
  • the device 1A can be fixed or attached to main substrata with double-sided adhesive tape 3.
  • the corner trim with the hollow back may be flexed along its axis to allow it be fixed to corners which are not exactly at 90 degrees.
  • This device 1A may be easily fitted and installed without any specialized knowledge, training or tools.
  • Teen can fit them without need of nuts, bolts, screws or other fixing agents.
  • a pigment carrying single extruded photoluminescent strip 11 in Cavetto shape wherein there are lips 2 and double-sided adhesive tape 3.
  • the single extruded photoluminescent strip 11 may have concave back and be without lips.
  • the two sides of the strip which are supposed to engaged with main substrata during use are perpendicular to each other.
  • the top part of the device which will be exposed when used may be convex or concave or plane or cyma or any design.
  • FIG. 7 there is shown a head on view of a co-extruded photoluminescent device 1A in the Ovolo shape with concave back running longitudinally along at the back.
  • This device 1A can be fixed or attached to main substrata with double-sided adhesive 3.
  • the lips 2 can be seen to stand proud of the self adhesive tape 3 and thereby press against the main substrata.
  • a concave hemisphere-shaped back 9 is created between the extruded non-photoluminescent substrata 8 and corner of two walls (main substrata) for passage of cable or wires underneath it and to allow a certain amount of flexibility along its axis as well as facilitating the application of a mastic.
  • This lip is manufactured such that it lies/touches or presses against the surface to which the devices in invention is adhering to.
  • the lip's function is to protect the adhesive, prevent the product from being a trip or snag hazard, reduce the ability for micro biota, flora, fauna and dust to nestle in or on the product, thereby making it cleaner and pro-active in its cleanliness, make the exterior visible curve of the lips present a homogenous finish to the strip which is a significant contribution to its aesthetic finish and also make it easy to clean.
  • the device 1A is flexible and can be rolled, making it more economical to store, transport & distribute as well as easier to apply.
  • Fig. 8 there is shown an isometric view of the device 1 with lips 2 as a feature of the photoluminescent extrusion.
  • the curve of the body 15 which is necessary to create the lips 2 demonstrates the light diffusion which occurs on the outer edges.
  • Symbol or text 12 may be used as an indicator of direction or a command.
  • FIG. 9 there is shown a top view looking directly at the photoluminescent device 1 which is cut to two reciprocal moieties 14 to introduce a break/space 13 which acts as contrast in a low level light situation.
  • the said photoluminescent strips are attached to the main substratum 4 such as wall of any building with double-sided adhesive tape 3.
  • FIG. 10 there is shown a practical application of photoluminescent device 1 which is cut at three points to produce the strip 104 as shown in Fig. 9 when mounted on a wall 105.
  • An arrow shape 101 is also shown as a construction of three pieces of photoluminescent device 1 and the aesthetic properties of the extruded photoluminescent coving 102 is demonstrated sitting against the architrave 103 of the doorway.
  • the extruded photoluminescent device 1 is also employed to create a mitered decorative highlighting shape 104 around the door handle.
  • the extruded photoluminescent strip 104 is also seen a wall mounting and as a floor mounting.
  • FIG. 11 there is shown a practical application wherein electric lights switch 111 surrounded in an aesthetic fashion by the mitered coving 112 constructed from photoluminescent strip 1A.
  • This coving 112, constructed from strip 122 is also shown against a typical doorway architrave 114.
  • the strip 113 is shown running along the wall close to the floor.
  • the strip 112 is shown running along the top of a typical skirting board 115 and also in the corner of a window recess 116 where it sits against the edge of the 117 window's frame. This window is used as an escape route.
  • a device 1A (coving 122) in use, sitting flush against a wall 124 and on top of a skirting board 121.
  • the space created by the groove 123 in the interior of the coving shows a telephone/fibre optic cable running beneath it and where a mastic may be applied if necessary.
  • the miter joint 125 in the corner shows the ease with which the device 1A can be aesthetically employed.
  • Fig. 13 demonstrates devices in fig 3 and fig 4 in a typical use.
  • a cabinet 134 lies in an escape pathway to an exit 135 and so is marked with 131 folded outwardly along the outer edge of the 131 cabinet. 131 is also shown folded inwardly so as to fit in the corner of the wall.
  • On top of an architectural border 133 is the device 1A of the invention.
  • Fig. 14 demonstrates the use of devices 1 and 1A as an habitual light source where a person walks at night from his bed to a lavatory.
  • the photoluminescent device 1A laying on top of a skirting 143 provides ample ambient light for the person to walk safely to his destination and if he so desires, an device 1 of the invention highlights the electric light switch for the lavatory.
  • Fig. 15 demonstrates application of devices in invention as an architectural aesthetic aid where a glass and steel structure use device 1 or 1A to create an aesthetic/cosmetic trim between the 153 glass and 152 steel base.
  • the photoluminescent devices serves the further purpose in low level light conditions by highlighting the styling of the structure as well as being an aesthetic/cosmetic feature and may also possibly be an habitual light source and a safety lighting feature.
  • Fig.16 & 16b demonstrate how a photoluminescent strip may be shaped to form an expansion or insertion joint the typical arrangement for a tongue 164 and groove 161 of flooring timbers 162.
  • the extruded photoluminescent device 165 fits into gap 163.
  • This device can be made to integrate into tongue and groove constructions, thereby allowing failsafe lighting to become part of the construction process without interfering in the process itself.
  • the device may act as an expansion joint in tongue and groove flooring.
  • This device may be made from a plastic that will compress or expand with surrounding pressure.
  • the joint of the devices in Fig. 16 and 16b are configured for use with a floor, decking, wall, ceiling or any paneling having tongue and groove joints.
  • Fig. 17 shows a door 174, having a frame 171 and glass 173.
  • the frame 171 includes a glazing beading 172 of photoluminescent material to provide an enhanced appearance and with the inbuilt photoluminescent light source, they now acts as highlighted safety exits.
  • a window can have luminous beading or gaskets.
  • a side view of a lossy (attenuating) light carrying fibre comprising the carrying fibre 182 (made of plastic) with a helically wound fibre 181 (made of plastic) embedded into it.
  • Helically wound fibre 181 and carrying fibre 182 have different refractive indices.
  • X is the distance along carrying fibre 182 of one complete wind of helically wound fibre 181.
  • FIG. 18b there is shown an isometric view of a lossy (attenuating) light carrying fibre, comprised of the carrying fibre 182 (made of plastic) with a helically wound fibre 181 (made of plastic) embedded into it. 183 is simply the end view of the termination of 181.
  • r1 is the radius of the embedded fibre and r2 is the radius of the carrying fibre and r2>r1.
  • a solar cell and battery arrangement 192 which produces and stores electricity to create a light source 193 which illuminates the lossy (attenuating) fibre 191 in the photoluminescent device 1 and other devices disclosed in the invention herein.
  • the devices are designed to be manufactured using anti-microbial plastics so that they can be used in environments where anti-microbial traits are essential or desired.
  • a transformer 200 connected by wire 201.
  • the current from the transformer 200 is used to power a light source 193 which illuminates the lossy (attenuating) fibre 191 running longitudinally in the photoluminescent device 1 and other devices disclosed in the invention herein.
  • a transformer 200 connected by 201 to a current and in turn connected by wire 210 to a light string 192 which runs longitudinally through the photoluminescent device 1 and other devices.
  • the lossy string light may be transported and attenuated in areas where no power or light source exists.
  • All the devices in the Invention can be made antimicrobial by using chemical such as silver ion additive.
  • the photoluminescent aspect of the devices disclosed above in the Invention may have a light attenuating string running along its length.
  • the power source of the devices may be a fibre optic cable bringing light to the distal end of the attenuation string.
  • the fixing means for the devices disclosed in the Invention may be double-sided adhesive tape or glue or mastic or bolt or screw or U-pin or combination of any of the above.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP14001787.2A 2013-05-24 2014-05-21 Dispositifs photoluminescents qui conviennent à une large gamme d'applications Withdrawn EP2837874A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201309442A GB2516614A (en) 2013-05-24 2013-05-24 Photoluminescent devices suited for a broad range of applications

Publications (3)

Publication Number Publication Date
EP2837874A2 true EP2837874A2 (fr) 2015-02-18
EP2837874A8 EP2837874A8 (fr) 2015-04-08
EP2837874A3 EP2837874A3 (fr) 2015-11-18

Family

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Application Number Title Priority Date Filing Date
EP14001787.2A Withdrawn EP2837874A3 (fr) 2013-05-24 2014-05-21 Dispositifs photoluminescents qui conviennent à une large gamme d'applications

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EP (1) EP2837874A3 (fr)
GB (1) GB2516614A (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN109300415A (zh) * 2018-12-19 2019-02-01 安徽智迪信息科技有限公司 荧光指示贴

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US10059461B2 (en) 2014-10-17 2018-08-28 Saf-T-Glo Limited Aircraft marking system
GB201813139D0 (en) * 2018-08-10 2018-09-26 Saf T Glo Ltd Emergency lighting

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US4522861A (en) * 1983-08-22 1985-06-11 Metalines, Inc. Phosphorescent tread plate and composition
GB8704111D0 (en) * 1987-02-23 1987-04-01 Shinebuild Ltd Structural element
GB9508065D0 (en) * 1995-04-20 1995-06-07 Saf T Glo Ltd Emergency lighting
US5904017A (en) * 1996-05-17 1999-05-18 Duramax, Inc. Photoluminescent emergency egress accessory
GB2328064A (en) * 1997-08-09 1999-02-10 Euro Passive Fire Protection L Illuminating apparatus
EP1291403A1 (fr) * 2001-09-07 2003-03-12 3M Innovative Properties Company Ruban adhésif photoluminescent
GB2448424B (en) * 2007-04-14 2012-04-04 Saf T Glo Ltd Improvments in or relating to emergency lighting
US8534009B2 (en) * 2007-12-07 2013-09-17 Ronald J. Kay Safety nosing components and manufacturing methods
ITCR20080011A1 (it) * 2008-06-16 2009-12-17 Stefano Enzo Fanzio Profilo per arredamento con traccia visibile al buio

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Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109300415A (zh) * 2018-12-19 2019-02-01 安徽智迪信息科技有限公司 荧光指示贴
CN109300415B (zh) * 2018-12-19 2021-10-15 安徽智迪信息科技有限公司 荧光指示贴

Also Published As

Publication number Publication date
EP2837874A8 (fr) 2015-04-08
EP2837874A3 (fr) 2015-11-18
GB201309442D0 (en) 2013-07-10
GB2516614A (en) 2015-02-04

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