EP0293348B1 - Dispositif phosphorescent - Google Patents

Dispositif phosphorescent Download PDF

Info

Publication number
EP0293348B1
EP0293348B1 EP19880850142 EP88850142A EP0293348B1 EP 0293348 B1 EP0293348 B1 EP 0293348B1 EP 19880850142 EP19880850142 EP 19880850142 EP 88850142 A EP88850142 A EP 88850142A EP 0293348 B1 EP0293348 B1 EP 0293348B1
Authority
EP
European Patent Office
Prior art keywords
layer
light
fabric
luminous colour
front portion
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 - Lifetime
Application number
EP19880850142
Other languages
German (de)
English (en)
Other versions
EP0293348A1 (fr
Inventor
Lars Sefastsson
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.)
Individual
Original Assignee
Individual
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
Priority claimed from SE8701710A external-priority patent/SE8701710D0/xx
Application filed by Individual filed Critical Individual
Priority to AT88850142T priority Critical patent/ATE85448T1/de
Publication of EP0293348A1 publication Critical patent/EP0293348A1/fr
Application granted granted Critical
Publication of EP0293348B1 publication Critical patent/EP0293348B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/42—Illuminated signs; Luminous advertising with light sources activated by non-visible radiation
    • 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

Definitions

  • This invention relates to a phosphorescent device for use in for instance a light box for a meeting hall for indication of an exit from the same.
  • Such light boxes are common at the exit doors of emergency evacuation in meeting halls and similar spaces and the purpose of these boxes is that they shall continue to light in fire and similar emergency situations when the main current disappears so that the emergency exits become clearly indicated for those people who shall evacuate the hall.
  • the light boxes usually have a parallelepipedic form and are placed above each emergency exit. Inside the box there is a light source usually a fluorescent tube which is lit when the main current is on, whereby the word "OUT" on the front portion of the light box, which front portion as a rule comprises a plastic plate, lights out of the hall. According to the law the light box has to be provided with some form of light in reserve so that the box continues to light even if the main current should disappear.
  • the first document, FR-A-831 805, discloses a device, which in contrast to the device according to this invention uses the fluorescence technique. Moreover, the device comprises a plate instead of a fabric. Also the second document, GB-A-672 762, refers to the fluorescence technique and accordingly discloses a device which cannot be compaired with the device according to this invention.
  • the third patent discloses a phosphorescent device consisting of a composition of a translucent material and a phosphorescent material.
  • the phosphorescent material is mixed with the translucent material. That means that this known device is very complicated and, therefore, becomes expensive to manufacture. Moreover, the result will not be very good.
  • the present invention intends to solve the problems with the known technique and offer a reliable phosphorescent device which can be used in light boxes and in other arrangements and which has the ability to be able to maintain the intensity of light so that the guidance of the device is maintained during a long time after the darkening of the lamp of the light box.
  • the device can suck up light from all directions and store it. That means that in the case of the light box the device is charged irrespective of if the light comes from the outside or from the inside.
  • FIG. 1 shows a light box known on the market and placed above a door leading out from a room
  • Fig. 2 shows a horizontal cross section of the light box according to Fig. 1
  • Fig. 3 shows a horizontal cross section of a front plate according to a first embodiment of the invention which front plate can be used in a known light box of that type shown in Figs. 1 and 2 or in other types of light boxes
  • Fig. 4 shows a horizontal cross section of the front portion of a light box according to a second embodiment of the invention.
  • a known light box 1 which as has been mentioned previously, is intended to be placed above a door 2 in a meeting hall 3 which door is intended to be an emergency exit.
  • This light box comprises a fluorescent tube 4 always lighting, that is also on occasions when the light in the hall dies out.
  • the light from the fluorescent tube 4 is intended to come out into the hall by the front portion 5 of the light box which as a rule comprises a plastic plate so designed that it is possible to read on the same the word "OUT", "EXIT” or the like.
  • the light box also encloses at least a lamp in reserve driven by dry batteries and which shall begin to light if the main current is cut off with the consequence that the fluorescent tube dies out. As has been mentioned previously it does not function in that way in reality.
  • the solution of the problem is a phosporescent device according to the present invention.
  • a first embodiment of the invention is illustrated more closely in Fig. 3 showing a cross section of a front plate of a light box.
  • the front plate comprises a translucent fabric 6 of glass fibre which is coated with a layer 7 of luminous colour.
  • the layer of luminous colour comprises crystals of zinc sulphide having the ability to suck up and store incoming light, whereby the layer of luminous colour becomes phosphorescent. Due to the fact that the fabric 6 of glass fibre allows the light to pass through, the layer of luminous colour can be charged by light from all sides.
  • the fabric of glass fibre has wave form in cross section.
  • the luminous colour is in the form of a separate layer on the outside of the fabric it is possible for the crystals of zinc sulphide to be collected in the wave troughs of the fabric of glass fibre which partly means that the number of crystals per unit of the area becomes great, partly means that the crystals of zinc sulphide get the ability to reflect the incoming rays of light between themselves. This leads to a better storage of the light from the rays of light in the crystals of zinc sulphide leading to that these ones become charged through. This in its turn leads to a prolonged lighting time.
  • fibres of the fabric of glass fibre have the ability to spread the incoming rays of light so that as many crystals of zinc sulphide as possible are hit by the rays of light.
  • the new front plate is very suitable to be used as a front plate 5 in light boxes existing on the market, the layer 7 of luminous colour being intended to be positioned farthest away with the fabric layer 6 inside and accordingly facing the fluorescent tube.
  • This embodiment like the first one has a layer 6 of glass fibre coated with a layer 7 of luminous colour. On the outside of this layer of luminous colour there is another layer 8 of luminous colour. Farthest away on the device there is a plane plastic plate 9 placed.
  • the layer 8 of luminous colour is suitably applied against the inside of the plastic plate 9, whereafter the plastic plate with the layer 8 of luminous colour is applied against the first layer 7 of luminous colour. Since the plane plastic plate 9 is positioned farthest away, it constitutes the part of the device that the tape with the text shall be fastened on. Due to that fact there is created a good base for the tape resulting in that it can be fastened properly.
  • two layers 7 and 8 of luminous colour are placed between the layer 6 of fabric of glass fibre and the plastic plate 9. Of course it is possible to have only one layer.
  • the layer of luminous colour is charged not only by the light outside the light box but also by the light from the fluorescent tube inside the light box which tube is always lit. That means that the layer 7 of luminous colour of the device is charged also during the time when the light outside the light box, that is out in the hall, is switched off.
  • the fabric is made of glass fibre.
  • the layer of luminous colour comprises crystals of zinc sulphide.
  • the number of crystals per square centimetre ought to be about 12 000.
  • the layer of luminous colour can be of another kind.
  • light boxes for emergency exits are only one of several possible areas of use for the invention.

Landscapes

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

Claims (6)

  1. Dispositif phosphorescent pour utilisation par exemple dans une boîte lumineuse d'une salle de réunions pour indiquer une sortie de cette dernière, caractérisé par la combinaison des caractéristiques suivantes:
    - le dispositif présente une première couche comprenant un tissu translucide (6) capable de distribuer les rayons de lumière incidents;
    - le dispositif présente une deuxième couche (7) comprenant une couleur lumineuse à cristaux, ladite couleur recouvrant un côté du tissu et étant capable d'absorber et d'emmagasiner de la lumière;
    - le tissu est de coupe transversale ondulée, de sorte à présenter des creux de vague, les cristaux de la couleur lumineuse s'accumulant dans les creux de vague du tissu pour mieux emmagasiner les rayons de lumière incidents.
  2. Dispositif selon la revendication 1, constituant la partie frontale d'une boîte lumineuse contenant un tube fluorescent, caractérisé en ce que la couche (7) de couleur lumineuse du dispositif est disposée sur le côté extérieur, et que par conséquent, la couche (6) de tissu fait face au tube fluorescent (4).
  3. Dispositif selon la revendication 1, constituant la partie frontale d'une boîte lumineuse contenant un tube fluorescent, caractérisé en ce que la partie frontale comporte en plus de la couche (6) de tissu et de la couche (7) de couleur lumineuse, aussi une plaque (9) plate de matière plastique disposée sur le côté extérieur, tandis que la couche (6) de tissu est disposée sur le côté intérieur et donc fait face au tube fluorescent (4).
  4. Dispositif selon la revendication 3, caractérisé en ce que la partie frontale comporte une couche (8) additionnelle de couleur lumineuse qui est appliquée sur le côté intérieur de la plaque (9) en matière plastique et qui, dans la fabrication de la partie frontale, est donc appliquée sur la première couche (7) de couleur lumineuse.
  5. Dispositif selon l'une quelconque des revendications précédantes, caractérisé en ce que le tissu (6) est en fibre de verre.
  6. Dispositif selon l'une quelconque des revendications précédantes, caractérisé en ce que la couche de couleur lumineuse comporte des cristaux de sulfure de zinc.
EP19880850142 1987-04-27 1988-04-26 Dispositif phosphorescent Expired - Lifetime EP0293348B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88850142T ATE85448T1 (de) 1987-04-27 1988-04-26 Phosphoreszierende vorrichtung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8701710A SE8701710D0 (sv) 1987-04-27 1987-04-27 Genomlysbar efterlysande skylt/band/linje
SE8701710 1987-04-27
SE8704680A SE8704680D0 (sv) 1987-04-27 1987-11-25 Sjelvlysande anordning
SE8704680 1987-11-25

Publications (2)

Publication Number Publication Date
EP0293348A1 EP0293348A1 (fr) 1988-11-30
EP0293348B1 true EP0293348B1 (fr) 1993-02-03

Family

ID=26659788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880850142 Expired - Lifetime EP0293348B1 (fr) 1987-04-27 1988-04-26 Dispositif phosphorescent

Country Status (9)

Country Link
EP (1) EP0293348B1 (fr)
JP (1) JPH02503373A (fr)
AU (1) AU1703488A (fr)
BR (1) BR8807485A (fr)
DE (1) DE3878039D1 (fr)
DK (1) DK517589D0 (fr)
FI (1) FI895041A0 (fr)
SE (1) SE8704680D0 (fr)
WO (1) WO1988008599A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2368630A1 (es) * 2009-04-23 2011-11-21 Jorge Ruiz Toledo Señal auto-luminiscente de seguridad.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1723624B1 (fr) 2004-03-12 2008-08-06 Avery Dennison Corporation Panneau indicateur d'urgence
DE602005023713D1 (de) * 2004-03-12 2010-11-04 Avery Dennison Corp Notinformations-beleuchtungssystem
JP2010026763A (ja) * 2008-07-18 2010-02-04 Unimatec Co Ltd 蓄光式避難誘導標識
JP5500331B2 (ja) * 2008-07-28 2014-05-21 Ｎｏｋ株式会社 蓄光式避難誘導標識の製造方法
JP5999520B2 (ja) * 2013-10-28 2016-09-28 有限会社コイケサイド 蓄光板及びその製造方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1362284A (en) * 1919-08-15 1920-12-14 Frazer W Gay Sign
FR831805A (fr) 1938-01-08 1938-09-15 Objets divers tels que lettres, chiffres, signes, etc., à surface fluorescente
US2436182A (en) 1941-11-26 1948-02-17 Gilbert T Schmidling Phosphorescent resin composition
GB672762A (en) 1944-10-25 1952-05-28 Robert Charles Switzer Improvements in or relating to fluorescent devices
US3525864A (en) * 1968-06-18 1970-08-25 F C Griblin Lighting means excited by ultra-violet radiation
BE794394A (fr) * 1972-01-24 1973-07-23 Minnesota Mining & Mfg Panneau retroreflechissant
FR2308155A1 (fr) * 1975-04-18 1976-11-12 Aerospatiale Procede et panneau d'affichage photoluminescent
FR2311991A1 (fr) * 1975-05-23 1976-12-17 Payen De La Garanderie Hugues Pellicules luminescentes transparentes et leurs applications notamment comme sources d'energie lumineuse
US4420898A (en) * 1982-03-01 1983-12-20 Moses John R Flat emergency exit sign utilizing an electro-illuminescent lamp
US4466208A (en) * 1982-07-30 1984-08-21 Logan Jr Emanuel L Emergency exit sign utilizing an electro-luminescent (EL) lamp and a brightness monitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2368630A1 (es) * 2009-04-23 2011-11-21 Jorge Ruiz Toledo Señal auto-luminiscente de seguridad.

Also Published As

Publication number Publication date
AU1703488A (en) 1988-12-02
WO1988008599A1 (fr) 1988-11-03
DE3878039D1 (de) 1993-03-18
BR8807485A (pt) 1990-05-22
DK517589A (da) 1989-10-18
EP0293348A1 (fr) 1988-11-30
SE8704680D0 (sv) 1987-11-25
FI895041A0 (fi) 1989-10-24
DK517589D0 (da) 1989-10-18
JPH02503373A (ja) 1990-10-11

Similar Documents

Publication Publication Date Title
US6215409B1 (en) Display apparatus
CA2521880C (fr) Panneau a eclairage peripherique offrant des caracteristiques de photoluminescence
KR910007347B1 (ko) 조명 장치 및 방법
US5315491A (en) Reflecting and luminous layered material
US6880963B2 (en) Luminaire
US5775016A (en) Illuminated safety guide
US6843010B2 (en) Sign with photo-luminescent and current-generated lighting
EP0272053A2 (fr) Dispositif d'éclairage
KR100597977B1 (ko) 반사 필름을 갖는 표시판 및 그 사용 방법
WO1996018920A1 (fr) Feuille retroreflechissante emettant un lumiere lorsqu'elle est irradiee par des rayons ultraviolets
EP2896776A1 (fr) Corps de structure de fenêtre
CA2314132A1 (fr) Enseigne lumineuse
US5295050A (en) Display system
EP0293348B1 (fr) Dispositif phosphorescent
GB2157470A (en) Emergency evacuation route display system
TR28295A (tr) Iki dis kata ve bir ic kisma sahip bilesik paneller.
JP2004527676A (ja) 照明されるガラス板を持つ公共建造物
JPH1087202A (ja) エレベータ装置
KR20050019609A (ko) 축광물질을 이용한 지하철 시설물용 비상안내표지
JPS63265387A (ja) 建造物等に用いる避難誘導装置
GB2076276A (en) A helmet for providing a sensory affect to an observer.
CN210865486U (zh) 标志灯单面可靠式防水结构
US2154686A (en) Light-transmitting building construction
KR200314488Y1 (ko) 축광특성을 갖는 안내표시구
AU716823B2 (en) Display apparatus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19881123

17Q First examination report despatched

Effective date: 19901228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19930203

Ref country code: LI

Effective date: 19930203

Ref country code: NL

Effective date: 19930203

Ref country code: CH

Effective date: 19930203

Ref country code: AT

Effective date: 19930203

Ref country code: DE

Effective date: 19930203

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19930203

Ref country code: FR

Effective date: 19930203

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19930203

REF Corresponds to:

Ref document number: 85448

Country of ref document: AT

Date of ref document: 19930215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3878039

Country of ref document: DE

Date of ref document: 19930318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930503

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930503

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19941031

Year of fee payment: 7

EAL Se: european patent in force in sweden

Ref document number: 88850142.6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950427

EUG Se: european patent has lapsed

Ref document number: 88850142.6