EP1091167A2 - Signalgeber mit LED-Reihen - Google Patents
Signalgeber mit LED-Reihen Download PDFInfo
- Publication number
- EP1091167A2 EP1091167A2 EP00890305A EP00890305A EP1091167A2 EP 1091167 A2 EP1091167 A2 EP 1091167A2 EP 00890305 A EP00890305 A EP 00890305A EP 00890305 A EP00890305 A EP 00890305A EP 1091167 A2 EP1091167 A2 EP 1091167A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- led
- optics according
- condenser
- signal generator
- 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- Withdrawn
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
- F21W2111/02—Use 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- a high light intensity requires an LED arrangement that is as accurate as possible Light adaptation to the distribution regulations allowed to the existing Make optimal use of the amount of light. Because practically all LEDs do not emit light with the prescribed light distribution must either disproportionately more LED to be used throughout Distribution area to get enough light, or additional optics provided become.
- the size of the phantom light is increased in Europe by the ratio of useful light Phantom light qualified and divided into classes, according to a German standard the phantom light must not exceed absolutely fixed values. In both cases, the sum of light from signal and phantom light must be the prescribed Comply with light colors for signal lights.
- the specifications regarding the light color of the sum of light can be by Coloring the lens are met, which also the phantom light in to a much higher degree than the useful light is reduced. Further measures to lower the phantom light, as they are known, set one almost homogeneous, parallel beam path within the optics ahead, as he does hitherto through a parabolic reflector with a light source that is as punctiform as possible was generated, in which slats or light grid are used, or they focus the useful light on small openings, which are in a defined grid a black matt cover are attached, which the incident sunlight mostly absorbed. There are also other options for conventional signals with a single point light source, which here are not relevant.
- Another assessment criterion is the overall depth. The lower the more There are design options for the signal generator itself, but also all the more more additional components such as detectors and controls can be found in the accommodate existing housings.
- a generally widespread version has one in the front of the Signal chamber inserted flat matt black disc, which mostly as Printed circuit board and is provided with a voltage supply. She is with a sufficient number of individual light-emitting diodes in the appropriate light color, evenly distributed over the entire area, equipped and is by one superior, transparent cover plate protected against weather, which often also contains optical elements to improve light distribution. Furthermore are also known simpler versions, where LEDs are directly sealed in one advantageously black carrier plate are used and their connections in a suitable circuit board behind is soldered or freely wired.
- a disadvantage of these simple embodiments is the need for lack need to use a particularly large number of LEDs in order to ensure precise lighting control
- the recognizability of each individual LED especially with failures, as well as high phantom light, which by The LED is illuminated directly by the sun. It can by known means can not be eliminated because there is no parallel beam. But the depth is very small.
- Patent application A 1623/97 also has a lens plate, on which a condenser is attached in front of each LED. At a greater distance in front of it is a conventional spreading disc. Between lens plate and Diffuser, the light is guided essentially in parallel, so that known Phantom light inserts can be used. The failure of some LEDs is caused by slight defocusing and a large distance between the lens plate and Cover screen veiled. The disadvantage is that the defocusing accordingly generates higher light losses in the phantom light inserts. For an effective Veiling, however, would require such a large distance that the use in would not fit an existing signal generator. Therefore in practice that is visual appearance is impaired, especially with partial assembly. The depth is kept as deep as possible.
- This type of construction results in particular from the unfocused, blurred image the LED arrangement a homogeneous light distribution and excellent uniform appearance of the light signal, even if one or several LEDs.
- this version can not meet too high brightness requirements because the light due to the size of the luminous surface and the blurred image shows a very large divergence despite the condenser lens.
- the phantom light is also very high, because for the same reasons a lot of sunlight also shines on the LED arrangement falls.
- the known ones phantom light-lowering devices cannot be used.
- the housing as a heat sink. Since it is because of better heat dissipation as well as being colored black due to the reduction in phantom light, Solar radiation is heated accordingly, which increases the light output of the LED sinks. After all, the overall depth is relatively high.
- Patent application A 488/99 shows one possibility Use of a lamella insert without a parallel beam.
- the LEDs there are narrow limits for the arrangement of the LEDs, especially one low height. With such an arrangement, it is admittedly sufficiently low Phantom light achievable, but it is currently not possible to get higher light values because there are not enough LEDs lined up in the available space can be.
- Another disadvantage is the limitations of the Front lens design regarding the position and the achievable light distribution. therefore there is also the risk of a slightly striped appearance. The Construction depth is greater than in the previous version because additional slats are to be accommodated.
- there is also an inclined design of the optics which shows the phantom light generating reflections of the steps between the Avoids front lens elements.
- the object of the invention is to provide an LED signal insert with a small overall depth develop, which also through the installation of phantom light-lowering agents can meet the highest phantom light classes and as little useful light as possible loses its light distribution as closely as possible to the distribution regulations is customizable and thus reaches the highest brightness level, as well as with a uniform visual appearance, even if some LED fails is not significantly affected.
- each condenser preferably at least two LEDs in one at a distance of the focal length horizontal row are arranged, the light rays of which are captured by the condenser, largely parallel in accordance with the optical laws in vertical section appear directed and with a divergent light beam in the horizontal direction Generate main beam directions corresponding to the LED array.
- sensor types with condenser optics have basically been in two groups divisible.
- a group there is a condenser in front of each individual LED, which collects the light and can form a parallel light alignment, thus using conventional means a sufficiently low phantom light is achieved.
- the achievable brightness is extremely large because of the parallelism of all light rays any other light distribution can also be achieved exactly.
- one is disadvantageous certain recognizability of individual LEDs, especially in the case of partial assembly and LED failures, the appearance leaves a lot to be desired.
- the LED is connected in such a way that in the event of a short circuit or Interruption by a single damaged LED in the affected LED in different rows and as far apart as possible, so that only one LED can fail at a time in each row.
- Another requirement for a good appearance is that the condensers seamlessly adjoin and the same brightness as possible in all zones exhibit. This can be done within certain limits and in coordination with the existing light distribution of the LED by constructive measures optical laws such as a curved structure of the condenser, different wall thicknesses and widths of the individual Fresnel rings as well additional optical structures on the entrance or exit surface, which the horizontal Divergence of the main beam directions equalize or change.
- optical laws such as a curved structure of the condenser, different wall thicknesses and widths of the individual Fresnel rings as well additional optical structures on the entrance or exit surface, which the horizontal Divergence of the main beam directions equalize or change.
- dark gussets between the Condensers by trimming the edge area or moving individual ones Condenser positions can be avoided. These edge losses are at a higher one
- the number of condensers is relatively smaller because there is a smaller proportion of the condensers is affected.
- a signal transmitter can thus be produced that both a great brightness through a precisely adjusted light distribution as well Possibility to lower the phantom light and even after the failure of some LED still offers an acceptable appearance.
- FIG. 1 a shows an embodiment of the invention in a sectional plan, 1b in a sectional elevation and Fig.1 c in side view, Fig. 2 a Version in vertical section.
- a circuit board (1) On a circuit board (1) are LEDs (2) in the form of horizontal rows (3) in one Hexagonal grid arranged. This is a transparent condenser plate (4) which are completely identical condensers (5) in Fresnel construction are arranged at the distance of the focal lengths (F). The centers of the Condensers (5) are aligned with the center of the LED rows (3). The The diameter of the condensers (5) is selected so that the light beams (6) of the LED (2) are captured as completely as possible by the condensers (5).
- the Focal distance (F) are the light beams (6) in the vertical section of the front view Aligned in parallel, in the horizontal direction (floor plan), the divergence results (D).
- the condenser plate (4) In front of the condenser plate (4) there is a lamella grid with horizontal ones Slats (7). They are attached and dimensioned in such a way that they illuminate the useful light in a known manner to let through largely unhindered, but from diagonally above absorb incident sunlight on its black matt top.
- the look is closed at the front by a diffuser (8), which is smooth on the outside and an arrangement of scattering elements (8a) on the inside to achieve this the prescribed light distribution.
- the circuit board (1) seals on your Circumference (1a) with a housing edge (9a).
- the side view shows that the Condensers (5) are cut off at the edge, so that the gusset (11) between neighboring condensers (5), which are inevitably somewhat darker, no longer attract attention.
- the circuit board (1) has a heat-distributing and stabilizing support, for example an aluminum sheet, the back of which is exposed. There can be Improving heat dissipation and increasing light output Surface coating, a heat sink or a Peltier element attached become.
- the printed circuit board (1) is connected to the housing (9) in any way, that it can be easily replaced in the event of a fault.
- the housing (9) has a black matt surface on the inside, which absorbs incoming sunlight.
- the case back covers with the openings (10) from the circuit board (1) completely, which shiny and reflective surfaces such as bare conductor tracks, solder pads, other components etc. can also have their heating by Prevents solar radiation, which improves light output and durability become.
- each LED (2a, 2b, 2c) forms a row (3) through the condensers (5) a main beam direction (12a, 12b, 12c), whereby the entire divergence (D) is determined, there are only insignificant scattered light rays in between. On Therefore, uniform appearance is required from all observation directions also a minimum horizontal scatter of the windscreen (8), which shows the angular value (S) between adjacent main beam directions.
- An LED failure for example (2a), causes the affected condenser (5) viewed from the corresponding main beam direction (12a), remains dark while it appears undiminished bright from the other directions of observation.
- This Appearance can be countered by adding a substantial amount of light with a large number of lens elements (8a) evenly distributed over the front screen (8) at least by twice the angle of two neighboring main beam directions (2xS) is scattered, then the front screen (8) also shines at the relevant point Light from the adjacent LED (2b) off.
- the described design has further design options, which are already described in patent application A 488/99 (Swarco-Futurit) and on the one hand increase the useful light, on the other hand lower the phantom light.
- the lens group (13) is shown, which is immediately in front of each LED row (3) sits and the light radiation (6) of the LED (2) exactly on the associated condenser (5) votes.
- Fig. 2 shows this inclination of the axis, which is usually by light
- the LED rows (3) are moved upwards from the condenser center. This also causes the parallel light beams to tilt downwards.
- the slats (7) have been realigned to the light path.
- the scattered rays of light (14) show the usual range of light distribution.
- the decentralized arrangement of the LED (2) on the circuit board (1) not only brings Space savings in the wiring, safety distances or heat dissipation, Above all, it also enables a flat design.
- the condensers can have different sizes and focal lengths have, the number of LEDs per row can vary as well as some Condensers can also be one to realize different bright signaling devices or to incorporate an improvement in the brightness of the LED. Also one Mixing with other components such as sensors, power supply, Monitoring modules etc. can be carried out on the circuit board. It can too multiple circuit boards may be provided.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Led Device Packages (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Description
Claims (17)
- Signalgeberoptik, bestehend aus einer LED-Anordnung, einer in einem Abstand davor angebrachten, aus transparentem Material bestehenden Platte (4), welche eine Mehrzahl von zumeist in Fresnell-Bauweise ausgeführten Kondensoren (5) mit Brennweiten (F) aufweist, einem unmittelbar davor angebrachten Lamellengitter (7) und einer transparenten, außen vorzugsweise glatten Frontscheibe (8), sowie einem topfartigen Gehäuse (9), dadurch gekennzeichnet, dass hinter jedem Kondensor (5) vorzugsweise zentral im Abstand der Brennweite (F) zumindest zwei LED (2) in einer horizontalen Reihe (3) angeordnet sind, deren Lichtstrahlen (6) von diesem erfasst, entsprechend den optischen Gesetzen im Vertikalschnitt möglichst parallel gerichtet werden und in horizontaler Richtung ein divergentes Lichtbündel mit Hauptstrahlrichtungen (12a, 12b, 12c), welche der LED-Reihenanordnung (2a, 2b, 2c) entsprechen, erzeugen.
- Signalgeberoptik nach Anspruch 1), dadurch gekennzeichnet, dass die LED-Reihen (3) innerhalb des Durchmesserbereichs des zugehörigen Kondensors (5) enden.
- Signalgeberoptik nach Anspruch 1) oder 2), dadurch gekennzeichnet, dass die Kondensoren (5) vorzugsweise in einem hexagonalen, rechteckigen oder quadratischen Raster oder insbesonders im Randbereich (11) der Kondensorplatte (4) auch beschnitten oder unregelmäßig angeordnet sind und lückenlos aneinandergrenzen (Fig. 1c).
- Signalgeberoptik nach Anspruch 1), 2) oder 3), dadurch gekennzeichnet, dass jeder Kondensor (5) durch Wölbung, Wandstärke, Anzahl und Breite der Fresnelringe so mit der Lichtabstrahlcharakteristik der LED (2) abgestimmt ist, dass seine Lichtaustrittsfläche von der Mitte bis zum Rand aus den Hauptstrahlrichtungen (12a, 12b, 12c) möglichst gleich hell erscheint.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 4), dadurch gekennzeichnet, dass alle Kondensoren (5) in einer Ebene angeordnet sind und die gleiche Brennweite (F) aufweisen.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 5), dadurch gekennzeichnet, dass sich alle LED (2) auf einer ebenen, gemeinsamen Leiterplatte (1) befinden.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 6), dadurch gekennzeichnet, daß jeder LED-Reihe (3) eine aus transparentem Material vorzugsweise einstückig hergestellte Linsengruppe (13) gleicher Baugröße unmittelbar vorgesetzt ist, welche die Lichtabstrahlung jeder LED (2a, 2b, 2c) möglichst vollständig erfasst und genau auf den zugehörigen Kondensor (5) ausrichtet.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 7), dadurch gekennzeichnet, dass die LED (2) so verschaltet und/oder angeordnet sind, dass alle durch eine schadhafte LED mitbetroffenen LED sich jeweils in unterschiedlichen Reihen (3) befinden.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 8), dadurch gekennzeichnet, dass der Gehäuseboden zwischen Leiterplatte (1) und Kondensorplatte (4) angeordnet ist, an den Stellen der LED-Reihen (3) passende Durchbrüche (10) aufweist und mattschwarz ist und/oder eine lichtabsorbierende Oberflächengestaltung aufweist.
- Signalgeberoptik nach Anspruch 9), dadurch gekennzeichnet, dass die Durchbrüche (10) im Gehäuseboden durch die Leiterplatte (1) abgedichtet werden.
- Signalgeberoptik nach Ansprüchen 9) oder 10), dadurch gekennzeichnet, daß die Leiterplatte (1) positionsgenau und auswechselbar auf dem Gehäuse (9) gehalten wird.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 11), dadurch gekennzeichnet, dass die Leiterplatte (1) in SMD-Technik ausgeführt ist.
- Signalgeberoptik nach Anspruch 12), dadurch gekennzeichnet, dass die Leiterplatte (1) ein Verbundwerkstoff mit einem guten Wärmeleiter ist.
- Signalgeberoptik nach Ansprüchen 12) oder 13), dadurch gekennzeichnet, dass auf der Rückseite der Leiterplatte (1) ein Kühlkörper oder ein Peltier-Element aufgesetzt ist oder die Wärmeabfuhr durch eine geeignete Oberflächengestaltung verbessert wird.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 14), dadurch gekennzeichnet, dass sich die verteilungsbestimmenden Streuelemente (8a) auf der innenseite der Frontscheibe (8) befinden.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 15), dadurch gekennzeichnet, dass die Streuelemente (8a) der Frontscheibe (8) in horizontaler Richtung zumindest eine solche Lichtstreuung aufweisen, die dem Winkel (S) zweier benachbarter Hauptstrahlrichtungen (12) entspricht und ein wesentlicher, gleichmäßig verteilter Anteil der Streuelemente (8a) wenigstens die doppelte Lichtstreuung aufweist.
- Signalgeberoptik nach einem oder mehreren Ansprüchen 1) bis 16), dadurch gekennzeichnet, daß das Lamellengitter (7) nur bei Bedarf vorhanden und nachträglich einsetzbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT171799 | 1999-10-08 | ||
AT0171799A AT410711B (de) | 1999-10-08 | 1999-10-08 | Signalgeberoptik mit led-reihen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1091167A2 true EP1091167A2 (de) | 2001-04-11 |
EP1091167A3 EP1091167A3 (de) | 2006-02-08 |
Family
ID=3519490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00890305A Withdrawn EP1091167A3 (de) | 1999-10-08 | 2000-10-09 | Signalgeber mit LED-Reihen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1091167A3 (de) |
AT (1) | AT410711B (de) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002029755A1 (en) * | 2000-10-05 | 2002-04-11 | Power Signal Technologies, Inc. | Solid state light apparatus having a cover including an integral lens |
DE10216393A1 (de) * | 2002-04-12 | 2003-10-30 | Osram Opto Semiconductors Gmbh | Leuchtdioden (LED)-Verkehrssignalgeber mit einer Lichtsignalschaltungsanordnung für Signallampen mit Haupt- und Nebenfaden |
WO2003098574A1 (fr) * | 2002-05-18 | 2003-11-27 | Obshestvo S Ogranichennoi Otvetstvennostiu 'va Instruments' | Dispositif de signalisation optique |
WO2004001459A1 (de) * | 2002-06-21 | 2003-12-31 | Stührenberg GmbH Elektrobau-Signaltechnik | Signalgeberoptik mit mehreren lichtquellen |
DE10261183B3 (de) * | 2002-12-20 | 2004-06-03 | Daimlerchrysler Ag | Fahrzeugscheinwerfer mit mehreren zu einem Array zusammengefassten LEDs. |
WO2006027629A2 (en) * | 2004-09-07 | 2006-03-16 | Set Europe Limited | Lighting system comprising a mask with small apertures |
DE102004007211B4 (de) * | 2004-02-13 | 2006-09-07 | Osram Opto Semiconductors Gmbh | Signalgeber und Leuchtmittel |
WO2006105646A1 (en) * | 2005-04-06 | 2006-10-12 | Tir Systems Ltd. | Lighting module with compact colour mixing and collimating optics |
EP1836071A1 (de) * | 2004-12-30 | 2007-09-26 | Gelcore LLC | Lichtsignalanlage mit einer gleichförmigen lichtfläche |
US7800840B2 (en) | 2008-09-10 | 2010-09-21 | E-Pin Optical Industry Co., Ltd. | Convex-fresnel LED lens and LED assembly thereof |
WO2011104205A1 (de) * | 2010-02-24 | 2011-09-01 | Siemens Aktiengesellschaft | Symbolanzeiger |
US8042975B2 (en) | 2008-09-10 | 2011-10-25 | E-Pin Optical Industry Co., Ltd. | Plano-fresnel LED lens and LED assembly thereof |
US8371714B2 (en) | 2009-03-30 | 2013-02-12 | Lan-Yang Investment Co., Ltd. | Fresnel LED lens and LED assembly thereof |
CN106931402A (zh) * | 2016-12-14 | 2017-07-07 | 江西科技师范大学 | 一种led交通信号灯透镜面罩 |
CN110778934A (zh) * | 2019-11-08 | 2020-02-11 | 平行现实(杭州)科技有限公司 | 一种基于一维衍射的超薄平行光源 |
CN115985121A (zh) * | 2022-11-30 | 2023-04-18 | 昆山中亿丰光电科技有限公司 | 一种光栅式人行道信号灯装置及系统 |
US11869358B2 (en) | 2021-10-29 | 2024-01-09 | Nortak Software Ltd. | System and method for warning of a presence of a mobile target |
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US48899A (en) | 1865-07-25 | Improved car-platform-stake holder | ||
US162397A (en) | 1875-04-20 | Improvement in ice | ||
US5636057A (en) | 1995-02-10 | 1997-06-03 | Ecolux Inc. | Prismatic toroidal lens and traffic signal light using this lens |
WO1998016777A1 (en) | 1996-10-16 | 1998-04-23 | Philips Electronics N.V. | SIGNAL LAMP WITH LEDs |
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AU8876998A (en) * | 1997-09-04 | 1999-03-22 | Howells Railway Products Limited | Plural-led lights |
EP0905439A3 (de) * | 1997-09-24 | 1999-12-01 | SWARCO FUTURIT Verkehrssignalsysteme Ges.m.b.H. | Signalgeber mit mehreren Lichtquellen |
EP1110027A1 (de) * | 1999-07-02 | 2001-06-27 | Lumileds Lighting B.V. | Leuchte und signalleuchte |
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1999
- 1999-10-08 AT AT0171799A patent/AT410711B/de not_active IP Right Cessation
-
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- 2000-10-09 EP EP00890305A patent/EP1091167A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US48899A (en) | 1865-07-25 | Improved car-platform-stake holder | ||
US162397A (en) | 1875-04-20 | Improvement in ice | ||
US5636057A (en) | 1995-02-10 | 1997-06-03 | Ecolux Inc. | Prismatic toroidal lens and traffic signal light using this lens |
WO1998016777A1 (en) | 1996-10-16 | 1998-04-23 | Philips Electronics N.V. | SIGNAL LAMP WITH LEDs |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6439743B1 (en) | 2000-10-05 | 2002-08-27 | Power Signal Technologies Inc. | Solid state traffic light apparatus having a cover including an integral lens |
WO2002029755A1 (en) * | 2000-10-05 | 2002-04-11 | Power Signal Technologies, Inc. | Solid state light apparatus having a cover including an integral lens |
DE10216393A1 (de) * | 2002-04-12 | 2003-10-30 | Osram Opto Semiconductors Gmbh | Leuchtdioden (LED)-Verkehrssignalgeber mit einer Lichtsignalschaltungsanordnung für Signallampen mit Haupt- und Nebenfaden |
DE10216393B4 (de) * | 2002-04-12 | 2009-03-05 | Osram Opto Semiconductors Gmbh | Leuchtdioden (LED)-Verkehrssignalgeber mit einer Lichtsignalschaltungsanordnung für Signallampen mit Haupt- und Nebenfaden |
WO2003098574A1 (fr) * | 2002-05-18 | 2003-11-27 | Obshestvo S Ogranichennoi Otvetstvennostiu 'va Instruments' | Dispositif de signalisation optique |
WO2004001459A1 (de) * | 2002-06-21 | 2003-12-31 | Stührenberg GmbH Elektrobau-Signaltechnik | Signalgeberoptik mit mehreren lichtquellen |
DE10261183B3 (de) * | 2002-12-20 | 2004-06-03 | Daimlerchrysler Ag | Fahrzeugscheinwerfer mit mehreren zu einem Array zusammengefassten LEDs. |
DE102004007211B4 (de) * | 2004-02-13 | 2006-09-07 | Osram Opto Semiconductors Gmbh | Signalgeber und Leuchtmittel |
JP2008512827A (ja) * | 2004-09-07 | 2008-04-24 | セット ヨーロッパ リミテッド | 照明システム |
WO2006027629A2 (en) * | 2004-09-07 | 2006-03-16 | Set Europe Limited | Lighting system comprising a mask with small apertures |
WO2006027629A3 (en) * | 2004-09-07 | 2007-04-12 | Set Europ Ltd | Lighting system comprising a mask with small apertures |
EP1836071A1 (de) * | 2004-12-30 | 2007-09-26 | Gelcore LLC | Lichtsignalanlage mit einer gleichförmigen lichtfläche |
EP1836071A4 (de) * | 2004-12-30 | 2009-06-24 | Lumination Llc | Lichtsignalanlage mit einer gleichförmigen lichtfläche |
US9291329B2 (en) | 2004-12-30 | 2016-03-22 | GE Lighting Solutions, LLC | Traffic signal having a uniform light surface |
WO2006105646A1 (en) * | 2005-04-06 | 2006-10-12 | Tir Systems Ltd. | Lighting module with compact colour mixing and collimating optics |
US7800840B2 (en) | 2008-09-10 | 2010-09-21 | E-Pin Optical Industry Co., Ltd. | Convex-fresnel LED lens and LED assembly thereof |
US8042975B2 (en) | 2008-09-10 | 2011-10-25 | E-Pin Optical Industry Co., Ltd. | Plano-fresnel LED lens and LED assembly thereof |
US8371714B2 (en) | 2009-03-30 | 2013-02-12 | Lan-Yang Investment Co., Ltd. | Fresnel LED lens and LED assembly thereof |
WO2011104205A1 (de) * | 2010-02-24 | 2011-09-01 | Siemens Aktiengesellschaft | Symbolanzeiger |
CN106931402A (zh) * | 2016-12-14 | 2017-07-07 | 江西科技师范大学 | 一种led交通信号灯透镜面罩 |
CN110778934A (zh) * | 2019-11-08 | 2020-02-11 | 平行现实(杭州)科技有限公司 | 一种基于一维衍射的超薄平行光源 |
US11869358B2 (en) | 2021-10-29 | 2024-01-09 | Nortak Software Ltd. | System and method for warning of a presence of a mobile target |
CN115985121A (zh) * | 2022-11-30 | 2023-04-18 | 昆山中亿丰光电科技有限公司 | 一种光栅式人行道信号灯装置及系统 |
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AT410711B (de) | 2003-07-25 |
EP1091167A3 (de) | 2006-02-08 |
ATA171799A (de) | 2002-11-15 |
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