FR2707786A1 - Light signalling device - Google Patents

Light signalling device Download PDF

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Publication number
FR2707786A1
FR2707786A1 FR9308922A FR9308922A FR2707786A1 FR 2707786 A1 FR2707786 A1 FR 2707786A1 FR 9308922 A FR9308922 A FR 9308922A FR 9308922 A FR9308922 A FR 9308922A FR 2707786 A1 FR2707786 A1 FR 2707786A1
Authority
FR
France
Prior art keywords
diodes
light
plate
pattern
support plate
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.)
Granted
Application number
FR9308922A
Other languages
French (fr)
Other versions
FR2707786B1 (en
Inventor
Valancogne Jean-Pierre
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
Application filed by Individual filed Critical Individual
Priority to FR9308922A priority Critical patent/FR2707786B1/en
Priority to DE9410950U priority patent/DE9410950U1/en
Publication of FR2707786A1 publication Critical patent/FR2707786A1/en
Application granted granted Critical
Publication of FR2707786B1 publication Critical patent/FR2707786B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F13/08Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/20Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/227Electroluminescent displays for vehicles

Abstract

This device is of the type comprising a support plate (2) on which light-emitting diodes (3) are fixed in a distribution which corresponds to the contours of the pattern to be signalled, and a transparent plate (4) for protecting the diodes (3), placed in front of the said support plate (2). According to the invention the transparent plate (4) is translucent, that is to say is able, depending on its distance with respect to the diodes (3), to generate diffraction of the light beams (6) emitted by the diodes (3) so as to cause an effect of rendering the light surface uniform, while preserving the general form of the pattern or symbol to be signalled.

Description

DISPOSITIF DE SIGNALISATION LUMINEUSE
La présente invention concerne un dispositif de signalisation lumineuse, ayant pour fonction de faire apparaître des motifs, lettres, pictogrammes, symboles ou autres lorsqu'il est en fonction. Ce dispositif est notamment destiné à être utilisé pour la signalisation routière mais peut également être utilisé dans tout autre domaine, par exemple pour la réalisation d'un simple panneau de décoration lumineuse.
LIGHT SIGNALING DEVICE
The present invention relates to a light signaling device, the function of which is to display patterns, letters, pictograms, symbols or the like when it is in operation. This device is in particular intended to be used for road signs but can also be used in any other field, for example for the production of a simple light decoration panel.

Les feux, panneaux ou autres dispositifs de signalisation lumineuse actuels comprennent soit des ampoules à incandescence, soit, depuis peu et en remplacement de celles-ci, des diodes électroluminescentes qui sont juxtaposées selon la forme du motif à faire apparaître. Current lights, panels or other light signaling devices include either incandescent bulbs or, recently, and in replacement of these, light-emitting diodes which are juxtaposed according to the shape of the pattern to appear.

Une ampoule à incandescence présente les inconvénients d'avoir une durée de vie relativement limitée et, par conséquent, un coût d'exploitation élevé compte tenu de la fréquence de son remplacement, d'avoir une consommation électrique importante et de produire une émission de chaleur qui tend à dégrader la plaque transparente située devant elle. An incandescent bulb has the disadvantages of having a relatively limited lifespan and, consequently, a high operating cost taking into account the frequency of its replacement, of having a significant electrical consumption and of producing a heat emission. which tends to degrade the transparent plate located in front of it.

De plus, les dispositifs de signalisation actuels incluent fréquemment une seule de ces ampoules à incandescence et n'assurent plus leur fonction dès lors que l'ampoule est défaillante, ce qui est pour le moins gênant dans le cas de dispositifs assurant une sécurité par la signalisation qu'ils permettent, tels que les feux tricolores ou feux de passage pour piétons. In addition, current signaling devices frequently include only one of these incandescent bulbs and no longer perform their function when the bulb fails, which is annoying to say the least in the case of devices ensuring safety by the signaling that they allow, such as traffic lights or pedestrian crossing lights.

Les diodes électroluminescentes permettent de remédier à ces inconvénients du fait de leur durée de vie et de la très faible chaleur qu'elles dégagent. Elles permettent également l'utilisation de boîtiers, caissons ou enveloppes étanches, et donc durables. Light-emitting diodes make it possible to remedy these drawbacks because of their lifetime and the very low heat they give off. They also allow the use of waterproof, and therefore durable, enclosures, boxes or envelopes.

Toutefois, les diodes électroluminescentes présentent l'inconvénient que, compte tenu de la ponctualité du faisceau lumineux que chacune d'elles émet, les motifs créés apparaissent constitués par une série de points lumineux et non comme ayant une surface lumineuse homogène. Outre un aspect visuel moins attrayant, il peut en résulter une visibilité moindre du motif. However, light-emitting diodes have the disadvantage that, given the punctuality of the light beam that each of them emits, the patterns created appear to be constituted by a series of light points and not as having a homogeneous light surface. In addition to a less attractive visual aspect, this can result in less visibility of the pattern.

La présente invention vise à remédier à ces inconvénients. The present invention aims to remedy these drawbacks.

Le dispositif qu'elle concerne comprend, de manière connue, une plaque support sur laquelle sont fixées des diodes électroluminescentes selon une répartition qui correspond aux contours du motif à signaler et une plaque transparente de protection des diodes, placée devant ladite plaque support. The device to which it relates comprises, in known manner, a support plate on which light-emitting diodes are fixed in a distribution which corresponds to the contours of the pattern to be signaled and a transparent diode protection plate, placed in front of said support plate.

Selon l'invention, la plaque transparente est translucide, c'est-à-dire apte, selon sa distance par rapport aux diodes, à générer une diffraction des faisceaux lumineux émis par les diodes de manière à provoquer un effet d'homogénéisation de la surface lumineuse tout en conservant la forme générale du motif ou symbole à signaler. According to the invention, the transparent plate is translucent, that is to say capable, depending on its distance from the diodes, of generating a diffraction of the light beams emitted by the diodes so as to cause a homogenization effect of the luminous surface while retaining the general shape of the pattern or symbol to be reported.

Outre cette amélioration importante de la qualité du motif lumineux, l'invention permet également de masquer complètement les diodes lorsque le dispositif n'est pas sous tension. In addition to this significant improvement in the quality of the light pattern, the invention also makes it possible to completely mask the diodes when the device is not energized.

La plaque peut être rendue translucide par dépolissage, sablage ou tout autre moyen d'abrasion, sur l'une de ses faces principales ou sur les deux. The plate can be made translucent by frosting, sandblasting or any other means of abrasion, on one of its main faces or on both.

La ou les faces de la plaque ainsi abrasée sont, en outre, antidérapantes, ce qui est avantageux dans le cas où le dispositif serait destiné à être installé à même le sol, dans un espace ouvert à la circulation piétonne ou automobile. The face (s) of the plate thus abraded are, in addition, non-slip, which is advantageous in the case where the device is intended to be installed on the ground, in a space open to pedestrian or automobile traffic.

De préférence, la plaque supportant les diodes comprend, du côté des diodes, un revêtement réfléchissant prévu pour renvoyer en direction de la plaque translucide la part de lumière que cette plaque translucide réfléchit elle-même lorsqu'elle reçoit les faisceaux lumineux émis par les diodes. Preferably, the plate supporting the diodes comprises, on the side of the diodes, a reflective coating provided for returning towards the translucent plate the part of light that this translucent plate itself reflects when it receives the light beams emitted by the diodes .

Pour sa bonne compréhension, l'invention est à nouveau décrite ci-dessous en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme de réalisation préférée du dispositif qu'elle concerne. For a good understanding, the invention is again described below with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, a preferred embodiment of the device which it concerns.

La figure unique en est une vue en coupe longitudinale. The single figure is a view in longitudinal section.

Ce dispositif comprend un boîtier étanche 1 contenant une plaque support 2 sur laquelle sont fixées des diodes électroluminescentes 3, disposées selon la forme du motif à faire apparaître. This device comprises a sealed housing 1 containing a support plate 2 on which are fixed light-emitting diodes 3, arranged according to the shape of the pattern to appear.

Devant les diodes 3 est placée une plaque en matériau transparent 4, dont la face principale extérieure a été rendue translucide par dépolissage, sablage ou tout autre moyen d'abrasion approprié. In front of the diodes 3 is placed a plate of transparent material 4, the outer main face of which has been made translucent by frosting, sandblasting or any other suitable abrasion means.

En outre, la plaque 2 supportant les diodes 3 comprend, du côté des diodes, un revêtement réfléchissant 5. In addition, the plate 2 supporting the diodes 3 comprises, on the side of the diodes, a reflective coating 5.

La plaque translucide génère, selon sa distance par rapport aux diodes 3, une diffraction des faisceaux lumineux 6 émis par les diodes 3, de manière à provoquer un effet d'homogénéisation de la surface lumineuse tout en conservant la forme générale du motif ou symbole à signaler, cette forme étant déterminée par la disposition des diodes. The translucent plate generates, depending on its distance from the diodes 3, a diffraction of the light beams 6 emitted by the diodes 3, so as to cause a homogenizing effect on the light surface while retaining the general shape of the pattern or symbol to signal, this form being determined by the arrangement of the diodes.

Outre une amélioration importante de la qualité du motif lumineux, cette plaque translucide 4 permet de masquer complètement les diodes 3 lorsque le dispositif n'est pas sous tension. In addition to a significant improvement in the quality of the light pattern, this translucent plate 4 makes it possible to completely hide the diodes 3 when the device is not energized.

Le revêtement réfléchissant 5 permet de renvoyer en direction de la plaque translucide 4 la part de lumière que cette plaque translucide réfléchit lorsqu'elle-même reçoit les faisceaux lumineux 6 émis par les diodes 3.  The reflective coating 5 allows the proportion of light that this translucent plate reflects when it receives the light beams 6 emitted by the diodes 3 to return towards the translucent plate 4.

Ce dispositif peut être utilisé pour la signalisation routière, notamment pour les feux tricolores ou les feux de passage pour piétons, et également dans tout autre domaine, par exemple pour la réalisation d'un simple panneau de décoration lumineuse. This device can be used for road signs, in particular for traffic lights or pedestrian crossing lights, and also in any other field, for example for the production of a simple light decoration panel.

La face extérieure abrasée de la plaque 4 est, en outre, antidérapante, ce qui est avantageux dans le cas où le dispositif serait destiné à être installé à même le sol, par exemple dans un espace ouvert à la circulation piétonne ou automobile.  The abraded outer face of the plate 4 is, in addition, non-slip, which is advantageous in the case where the device is intended to be installed on the ground, for example in a space open to pedestrian or automobile traffic.

Claims (2)

REVENDICATIONS 1 - Dispositif de signalisation lumineuse, du type comprenant une plaque support sur laquelle sont fixées des diodes électroluminescentes selon une répartition qui correspondant aux contours du motif à signaler et une plaque transparente de protection des diodes, placée devant ladite plaque support, caractérisé en ce que la plaque transparente (4) est translucide, c'est-à-dire apte, selon sa distance par rapport aux diodes (3), à générer une diffraction des faisceaux lumineux (6) émis par les diodes (3) de manière à provoquer un effet d'homogénéisation de la surface lumineuse tout en conservant la forme générale du motif ou symbole à signaler. 1 - Light signaling device, of the type comprising a support plate on which light-emitting diodes are fixed in a distribution which corresponds to the contours of the pattern to be signaled and a transparent diode protection plate, placed in front of said support plate, characterized in that the transparent plate (4) is translucent, that is to say capable, depending on its distance from the diodes (3), of generating a diffraction of the light beams (6) emitted by the diodes (3) so as to cause a homogenizing effect on the light surface while retaining the general shape of the pattern or symbol to be reported. 2 - Dispositif selon la revendication 1, caractérisé en ce que la plaque (2) supportant les diodes (3) comprend, du côté des diodes (3), un revêtement réfléchissant.  2 - Device according to claim 1, characterized in that the plate (2) supporting the diodes (3) comprises, on the side of the diodes (3), a reflective coating.
FR9308922A 1993-07-15 1993-07-15 Light signaling device. Expired - Fee Related FR2707786B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9308922A FR2707786B1 (en) 1993-07-15 1993-07-15 Light signaling device.
DE9410950U DE9410950U1 (en) 1993-07-15 1994-07-08 Light signaling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9308922A FR2707786B1 (en) 1993-07-15 1993-07-15 Light signaling device.

Publications (2)

Publication Number Publication Date
FR2707786A1 true FR2707786A1 (en) 1995-01-20
FR2707786B1 FR2707786B1 (en) 1995-09-29

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FR9308922A Expired - Fee Related FR2707786B1 (en) 1993-07-15 1993-07-15 Light signaling device.

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DE (1) DE9410950U1 (en)
FR (1) FR2707786B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006311A2 (en) 1998-12-02 2000-06-07 ERCO Leuchten GmbH Lamp of the type of a signal and/or orientation lamp
WO2001091090A1 (en) * 2000-05-26 2001-11-29 Showers International Pty Ltd Illumination of signs and system for providing signs
AT414180B (en) * 2004-05-04 2006-10-15 Scan Sign Kft LIGHTING BODIES

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19516488A1 (en) * 1995-05-05 1996-11-07 Valeo Borg Instr Verw Gmbh Multi-color lighting device
CN100526706C (en) 2003-06-27 2009-08-12 皇家飞利浦电子股份有限公司 Luminous body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301616A (en) * 1979-11-19 1981-11-24 Gudgel Terry J Illuminated frisbee toy
GB2242455A (en) * 1990-03-27 1991-10-02 Leith William Illuminated floor panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301616A (en) * 1979-11-19 1981-11-24 Gudgel Terry J Illuminated frisbee toy
GB2242455A (en) * 1990-03-27 1991-10-02 Leith William Illuminated floor panel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006311A2 (en) 1998-12-02 2000-06-07 ERCO Leuchten GmbH Lamp of the type of a signal and/or orientation lamp
WO2001091090A1 (en) * 2000-05-26 2001-11-29 Showers International Pty Ltd Illumination of signs and system for providing signs
AT414180B (en) * 2004-05-04 2006-10-15 Scan Sign Kft LIGHTING BODIES

Also Published As

Publication number Publication date
DE9410950U1 (en) 1994-10-13
FR2707786B1 (en) 1995-09-29

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Effective date: 20110331