EP1345189B1 - Signal light - Google Patents

Signal light Download PDF

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Publication number
EP1345189B1
EP1345189B1 EP03005210A EP03005210A EP1345189B1 EP 1345189 B1 EP1345189 B1 EP 1345189B1 EP 03005210 A EP03005210 A EP 03005210A EP 03005210 A EP03005210 A EP 03005210A EP 1345189 B1 EP1345189 B1 EP 1345189B1
Authority
EP
European Patent Office
Prior art keywords
light
rod
signal light
light according
round head
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
EP03005210A
Other languages
German (de)
French (fr)
Other versions
EP1345189A3 (en
EP1345189A2 (en
Inventor
Reinhold Barlian
Karl-Heinz Lux
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.)
Bartec GmbH
Original Assignee
Bartec GmbH
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 Bartec GmbH filed Critical Bartec GmbH
Publication of EP1345189A2 publication Critical patent/EP1345189A2/en
Publication of EP1345189A3 publication Critical patent/EP1345189A3/en
Application granted granted Critical
Publication of EP1345189B1 publication Critical patent/EP1345189B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • 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
    • 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]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

The signaling light has a housing (1) with electrical conductor parts (4), a LED (12) arranged in a light rod (5) with a transparent light cap (9) whose internal surface (14) facing the LED has a fine bubble structure. At least the light cap of the light rod is colored with a milky color. At least the cap can be colored with a fluorescent milky color.

Description

Die Erfindung betrifft eine Meldeleuchte für eine optische Anzeige, wie sie beispielsweise aus der DE-A-2 557 808 bekannt ist.The invention relates to a signal light for a visual display, as they For example, from DE-A-2 557 808 is known.

Bekannte Leuchtanzeigen, die mit Leuchtdioden bestückt sind, haben zumeist eine unzureichende Lichtverteilung und ungleichmäßige Ausleuchtung, so dass die Anzeige schlechter ist als vergleichbare Ausleuchtungen mit Glühlampen. Es gibt verschiedene Leuchtdiodentypen mit sehr unterschiedlichen Ausleuchtungsbildern. Eine Leuchtdiode mit einem engen Leuchtwinkel erzeugt eine helle, scharfe Punktausleuchtung, aber keine Flächenausleuchtung. Eine Leuchtdiode mit einem breiten Leuchtwinkel erzeugt keine ausreichende Helligkeit, um den Anforderungen für eine eindeutige Signalgabe zu genügen. Es ist bekannt, eine Platine mit mehreren aufgebondeten Leuchtdioden zu verwenden, eine sogenannte Multi LED. Diese Variante ist allerdings relativ teuer und es kann dennoch eine nur geringfügig bessere Ausleuchtung erzielt werden. Zudem tritt eine große Erwärmung auf, so dass ein Einsatz in explosionsgefährdeten Bereichen auf Grund der Normvorgaben gem. DIN EN 50014/18/19 eingeschränkt ist. Außerdem ist es bekannt, normale Leuchtdioden in bestimmten Abständen kreisförmig anzuordnen und eine Leuchtfläche mit einer Vielzahl kleiner Linsen vorzusehen. Die dabei abwechselnd auftretenden Hell- und Dunkelzonen sind jedoch störend, insbesondere dann, wenn sich auf der Leuchtfläche Symbole oder Schriftzeichen befinden. Zudem ist auch diese Anordnung kostenaufwendig. Known luminous displays, which are equipped with LEDs, usually have insufficient light distribution and uneven illumination, so that the display is worse than similar illuminations with incandescent lamps. There are different types of LEDs with very different ones Illumination images. A light-emitting diode with a narrow beam angle produces a bright, sharp spot illumination, but no area illumination. A light emitting diode with a wide beam angle does not produce sufficient Brightness to meet the requirements for a clear signaling suffice. It is known, a board with several light-emitting diodes to use, a so-called multi LED. This variant is however relatively expensive and yet it can only slightly better Illumination can be achieved. In addition, a large warming occurs, so that use in potentially explosive atmospheres on the basis of the standard specifications gem. DIN EN 50014/18/19 is restricted. It is also known normal light-emitting diodes at certain intervals to arrange circular and to provide a luminous surface with a plurality of small lenses. The case alternately appearing light and dark zones are disturbing, especially when symbols or characters are on the illuminated area are located. In addition, this arrangement is expensive.

Die Aufgabe der Erfindung besteht darin, eine Meldeleuchte für eine optische Anzeige zu schaffen, bei der mit einfachen Mitteln eine hohe Funktionstüchtigkeit mit niedriger Betriebstemperatur und einer hellen und gleichmäßigen Ausleuchtung erzielt wird.The object of the invention is to provide a signal light for an optical Display to create, with simple means a high degree of functionality with low operating temperature and a bright and even Illumination is achieved.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.This object is achieved by the features of claim 1 solved.

Bevorzugte Ausgestaltungen und Weiterbildungen der Erfindung sind durch die Merkmale der Unteransprüche gekennzeichnet.Preferred embodiments and further developments of the invention are characterized by characterized the features of the claims.

Weitere Vorteile und wesentliche Einzelheiten der Erfindung sind der nachfolgenden Beschreibung und der Zeichnung zu entnehmen, die in einer einzigen geschnittenen Figur in schematischer Darstellung eine bevorzugte Ausführungsform als Beispiel zeigt.Further advantages and essential details of the invention are the following Description and the drawing, which in a single Figure cut in a schematic representation of a preferred embodiment as an example shows.

Die erfindungsgemäße Meldeleuchte weist ein Gehäuse 1 mit einem Deckel 2 und einem Fußteil 3 auf, der an einer hier nicht dargestellten Profilschiene befestigbar ist. In dem Gehäuse 1 befinden sich elektrische Leiterteile 4 für den Anschluss von hier ebenfalls nicht dargestellten elektrischen Zu- und Ableitungen bzw. Anschlussklemmen.The indicator light according to the invention has a housing 1 with a cover 2 and a foot part 3, which on a profile rail, not shown here is fastened. In the housing 1 are electrical conductor parts 4 for the connection of here also not shown electrical supply and Derivatives or connection terminals.

In dem Gehäuse 1 ist zudem ein aus einem lichtdurchlässigen Material hergestellter Leuchtstab 5 angeordnet, der im wesentlichen als im Querschnitt kreiszylindrisches Rohr gestaltet ist , das den Deckel 2 durchsetzt und überragt. Der in dem Gehäuse 1 befindliche Teil des Leuchtstabs 5 weist einen in dem Gehäuse 1 verankerten rechteckförmigen Rohrendteil 6 auf, dessen Rechteckmaß etwas größer ist als der übrige Teil des Leuchtstabs 5. Am Beginn des Rohrendteils 6 ist auf Grund des größeren Rechteckmaßes eine Schulter 7 ausgebildet. In diesem Bereich ist der Leuchtstab 5 mit einem in das Gehäuse 1 eingebrachten Gießharz 8 umgossen, das die Schulter 7 übergreift. Der Gießharzverguss 8 ist so ausgeführt, dass er den genormten Anforderungen des Explosionsschutzes gem. DIN EN 50014/18/19 entspricht. In the housing 1 is also one made of a translucent material manufactured luminous rod 5 arranged substantially as in cross section circular cylindrical tube is designed, which passes through the lid 2 and surmounted. The located in the housing 1 part of the light bar 5 has a rectangular pipe end part 6 anchored in the housing 1, whose Rechteckmaß is slightly larger than the remaining part of the luminous rod. 5 At the beginning of the pipe end 6 is due to the larger rectangular size a shoulder 7 is formed. In this area, the light bar 5 with a poured into the housing 1 cast resin 8, which is the shoulder 7th overlaps. The cast resin casting 8 is designed so that it is the standard Requirements of explosion protection acc. Corresponds to DIN EN 50014/18/19.

Der dem Rohrendteil 6 entferntliegende Endbereich des Leuchtstabs 5 ist als etwa halbkugelförmige Leuchtkuppe 9 ausgebildet, wodurch der rohrförmige Leuchtstab 5 geschlossen ist. Der Leuchtstab 5 ist materialeinheitlich einstükkig ausgeführt, wobei die Wanddicke sowohl an der Leuchtkuppe 9 als auch am Rohrendteil 6 und auch zwischen diesen Endbereichen im wesentlichen gleich ist. Für eine Verwendung in explosionsgefährdeten Bereichen kann der Leuchtstab 5 zweckmäßig als druckfeste Kapsel entsprechend den Anforderungen der Explosionsschutznorm DIN EN 50014/18/19 ausgebildet sein.The pipe end portion 6 remote end portion of the light bar 5 is as formed about hemispherical lighthead 9, whereby the tubular Luminous rod 5 is closed. The glowing rod 5 is uniform material einstükkig executed, wherein the wall thickness both on the flare 9 and at the pipe end 6 and also between these end portions substantially is equal to. For use in potentially explosive atmospheres, the Luminous rod 5 expedient as flameproof capsule according to the requirements be designed to explosion protection standard DIN EN 50014/18/19.

In dem Leuchtstab 5 kann eine Leiterplatte 10 gelagert sein, die vorzugsweise zwischen stegförmigen Halterippen 11 gehalten ist. An der Leiterplatte 10 kann eine Leuchtdiode 12 kontaktiert sein, die sich etwas unterhalb der Leuchtkuppe 9 befindet und zu letzterer hin ausgerichtet ist. Außerdem können auf der Leiterplatte 10 der Funktion der Leuchtdiode 12 dienliche elektronische Bauteile 13 vorgesehen sein.In the luminous bar 5, a circuit board 10 may be mounted, preferably is held between web-shaped retaining ribs 11. On the circuit board 10th can be contacted a light emitting diode 12, which is slightly below the Lighthouse 9 is located and is aligned to the latter. Furthermore can on the circuit board 10 the function of the light emitting diode 12 useful electronic components 13 may be provided.

Um eine gleichmäßige und helle Ausleuchtung zu erzielen weist die der Leuchtdiode 12 zugewandte halbkugelförmige Innenfläche 14 der Leuchtkuppe 9 eine feinperlige Struktur auf, die zweckmäßig so gestaltet ist, dass eine Vielzahl kleiner kugelförmiger bzw. pertförmiger Erhebungen und eine Vielzahl kleiner Mulden abwechselnd unmittelbar nebeneinander liegen, so dass die Innenfläche 14 nicht glatt, sondern fein aufgeraut ist. Eine derart feingeraute Innenflächenstruktur kann vorzugsweise durch Erodieren, Ätzen, Kornstrahlen oder durch eine entsprechende Gestaltung der Formoberfläche erzielt werden. Die feingeraute Innflächenstruktur bewirkt, dass das von der Leuchtdiode 12 ausgesandte Licht sich an der gesamten Innenfläche 14 der Leuchtkuppe 9 so bricht und verfängt, dass die Leuchtkuppe 9 insgesamt als ein einheitlich großer Leuchtkörper leuchtet. Darüber hinaus kann es günstig sein, den Leuchtstab 5, mindestens aber die Leuchtkuppe 9 diffus milchig oder milchig/farbig fluoreszierend einzufärben. Durch eine solche Einfärbung wird die Lichtdurchlässigkeit derart reduziert, dass bei eingeschalteter Leuchtdiode 12 ein gewisses Eigenleuchten des Leuchtstabs 5 bzw. der Leuchtkuppe 9 auftritt, wodurch die Ausleuchtung noch gleichmäßiger und intensiver wird. To achieve a uniform and bright illumination points the light-emitting diode 12 facing hemispherical inner surface 14 of Leuchtkuppe 9 a feinperlige structure, the appropriate so is designed that a plurality of small spherical or pertförmiger Elevations and a variety of small hollows alternately immediately lie next to each other, so that the inner surface 14 is not smooth, but fine is roughened. Such a finely-finished inner surface structure may preferably by erosion, etching, grain blasting or by an appropriate design the mold surface can be achieved. The finely finished inner surface structure causes the light emitted by the light emitting diode 12 at the entire inner surface 14 of the luminous cap 9 so breaks and catches that the Leuchtkuppe 9 in total as a uniformly large light illuminates. In addition, it may be convenient, the glow stick 5, but at least the Coloring tip 9 diffuse milky or milky / colored fluorescently. Such a coloring reduces the light transmission in such a way that when the light emitting diode 12 is turned on a certain intrinsic lighting of the Luminous rod 5 and the lighthouse 9 occurs, causing the illumination even more even and intense.

Wie der Zeichnung weiterhin zu entnehmen ist, kann die Meldeleuchte einen Leuchtvorsatz 15 aufweisen, der den aus dem Deckel 2 herausragenden Teil des Leuchtstabs 5 überdeckt. Der Leuchtvorsatz 15 weist ein den Leuchtstab 5 rohrförmig umschließendes Einsatzgehäuse 16 und eine Leuchtkappe 17 auf, die mittels eines Frontrings 18 an dem Einsatzgehäuse 16 befestigt ist. Zwischen einem Rand 19 der Leuchtkappe 17 und dem Einsatzgehäuse 16 befindet sich ein Dichtungsring 20. Für die Befestigung des Leuchtvorsatzes 15 an einer Montagewand 21 kann an dem Einsatzgehäuse 16 eine Gewindemutter 22 drehbar gelagert sein, die fest gegen die Innenseite der Montagewand 21 geschraubt werden kann, so dass der Leuchtvorsatz 15 lagesicher montiert ist.As the drawing continues to show, the indicator light can Have light attachment 15, which protrudes from the lid 2 part of the luminous rod 5 covered. The light fixture 15 has a light stick 5 tubular enclosing insert housing 16 and a light cap 17th on, which is fixed by means of a front ring 18 on the insert housing 16. Between an edge 19 of the light cap 17 and the insert housing 16th there is a sealing ring 20. For attaching the light attachment 15 on a mounting wall 21 may be a threaded nut on the insert housing 16 22 rotatably mounted, which firmly against the inside of the mounting wall 21 can be screwed so that the light fixture 15 position safe is mounted.

Die Leuchtkappe 17 ist aus einem lichtdurchlässigen Material hergestellt und überdeckt die Leuchtkuppe 9 in einem geringen Abstand. Die der Leuchtkuppe 9 zugewandte Innenseite 23 der Leuchtkappe 17 kann ebenfalls eine feinperlige Struktur haben. Diese Struktur kann so ausgeführt sein, dass eine Vielzahl kleiner perlförmiger Erhebungen und eine Vielzahl kleiner Mulden abwechselnd unmittelbar nebeneinander liegen, so dass die Innenseite 23 fein aufgeraut ist. Diese feingeraute Innenseitenstruktur kann im wesentlichen gleich der feingerauten Innenflächenstruktur der Leuchtkuppe 9 ausgeführt und nach dem gleichen Produktionsverfahren hergestellt sein. Zudem kann es auch günstig sein, die Leuchtkappe 17 diffus milchig oder milchig/farbig fluoreszierend einzufärben, um die Lichtdurchlässigkeit zu reduzieren, wodurch ein Eigenleuchten der Leuchtkappe 17 sowie eine gleichmäßige und noch intensivere Ausleuchtung erzielt wird. Eine optimal helle und gleichmäßige Ausleuchtung kann zudem dadurch erreicht werden, dass sowohl die Leuchtkuppe 9 des Leuchtstabs 5 als auch die Leuchtkappe 17 des Leuchtvorsatzes 15 entsprechend der Licht- bzw. Farbwellenlänge der Leuchtdiode 12 eingefärbt sind.The light cap 17 is made of a translucent material and covers the flare 9 at a small distance. The flare 9 facing inside 23 of the light cap 17 may also be a have a fine-pearled structure. This structure can be designed such that a Variety of small bead-shaped elevations and a variety of small hollows alternately lie directly next to each other, so that the inside 23 fine is roughened. This finely-finished inner side structure can essentially executed equal to the finely-finished inner surface structure of the luminous cap 9 and manufactured according to the same production process. It can also also be cheap, the light cap 17 diffused milky or milky / colored to stain fluorescently to reduce the light transmission, whereby an intrinsic lighting of the light cap 17 and a uniform and even more intensive illumination is achieved. An optimally bright and even Illumination can also be achieved by both the Luminous cap 9 of the light bar 5 and the light cap 17 of the light attachment 15 corresponding to the light or color wavelength of the light emitting diode 12 are colored.

Claims (19)

  1. Signal light for optical display, comprising a housing (1) with electrical lead parts (4), a light-emitting diode (12) arranged in a light rod (5) which has a translucent round head (9) the inner side (14) of which facing the light-emitting diode (12) has a refracting fine pearl structure.
  2. Signal light according to the preceding Claim, characterised in that at least the round head (9) of the light rod (5) has a milky tinge.
  3. Signal light according to one of the preceding Claims, characterised in that at least the round head (9) of the light rod (5) is of a fluorescent milky colour.
  4. Signal light according to one of the preceding Claims, characterised in that the light rod (5) is formed in one piece with the round head (9) and from the same material.
  5. Signal light according to one of the preceding Claims, characterised in that the light rod (5) is formed as a cylindrical tube, one end of which is closed by the round head (9).
  6. Signal light according to one of the preceding Claims, characterised in that the light rod (5) is fixed in the housing (1) by the tube end section (6) which is away from the round head (9).
  7. Signal light according to one of the preceding Claims, characterised in that part of the light rod (5) in the housing (1) is cast over with moulding resin (8) according to the explosion protection requirements.
  8. Signal light according to one of the preceding Claims, characterised in that the light rod (5) is designed as a pressure-resistant capsule for the purpose of way of explosion protection.
  9. Indicating light according to one of the preceding Claims, characterised in that the housing (1) is closed by a cover (2) into which the light rod (5) protrudes.
  10. Signal light according to one of the preceding Claims, characterised in that a printed circuit board (10) with the light-emitting diode (12) and electronic components (13) arranged on it is provided within the light rod (5).
  11. Signal light according to one of the preceding Claims, characterised in that the printed circuit board (10) is securely located in position between the holding ribs (1) in the light rod (5).
  12. Signal light according to one of the preceding Claims, characterised in that a front casing (15) extends over the part of the light rod (5) which protrudes past the cover (2) of the housing (1).
  13. Signal light according to one of the preceding Claims, characterised in that the front casing (15) has a translucent light cap (17) extending over the round head (9) of the light rod (5).
  14. Signal light according to one of the preceding Claims, characterised in that the inner side (23) of the light cap (17) facing the round head (9) of the light rod (5) has a refracting fine pearl structure.
  15. Signal light according to one of the preceding Claims, characterised in that the fine pearl structure of the inner side (14) of the light rod (5) and the fine pearl structure of the inner side (23) of the light cap (17) are essentially identical.
  16. Signal light according to one of the preceding Claims, characterised in that the light cap (17) has a milky or milky/coloured fluorescent tint.
  17. Signal light according to one of the preceding Claims, characterised in that the round head (9) of the light rod (5) and the light cap (17) are tinted to suit the wavelength of the light colour of the light-emitting diode (12).
  18. Signal light according to one of the preceding Claims, characterised in that the light cap (17) is held by a front ring (18) which can be attached at an insert housing (16).
  19. Signal light according to one of the preceding Claims, characterised in that the front casing (15) is attachable to the mounting wall (21) which is arranged between the front ring (18) and a threaded nut (22) located at the insert housing (16).
EP03005210A 2002-03-13 2003-03-08 Signal light Expired - Lifetime EP1345189B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10210919A DE10210919B4 (en) 2002-03-13 2002-03-13 Pilot light
DE10210919 2002-03-13

Publications (3)

Publication Number Publication Date
EP1345189A2 EP1345189A2 (en) 2003-09-17
EP1345189A3 EP1345189A3 (en) 2003-12-17
EP1345189B1 true EP1345189B1 (en) 2005-01-19

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Family Applications (1)

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EP03005210A Expired - Lifetime EP1345189B1 (en) 2002-03-13 2003-03-08 Signal light

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US (1) US7134770B2 (en)
EP (1) EP1345189B1 (en)
CN (1) CN100416159C (en)
AT (1) ATE287565T1 (en)
AU (1) AU2003200962B2 (en)
BR (1) BRPI0300494B1 (en)
CA (1) CA2421908C (en)
DE (2) DE10210919B4 (en)
LT (1) LT5071B (en)
LV (1) LV13092B (en)
MY (1) MY134212A (en)
NO (1) NO333563B1 (en)
PL (1) PL202192B1 (en)
RU (1) RU2314567C2 (en)
SG (1) SG115524A1 (en)

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Publication number Publication date
DE50300255D1 (en) 2005-02-24
AU2003200962A1 (en) 2003-10-02
EP1345189A3 (en) 2003-12-17
EP1345189A2 (en) 2003-09-17
BRPI0300494B1 (en) 2016-10-18
LV13092B (en) 2004-04-20
LT5071B (en) 2003-11-25
PL359139A1 (en) 2003-09-22
BR0300494A (en) 2004-08-10
NO333563B1 (en) 2013-07-08
CA2421908C (en) 2009-03-10
CN1455144A (en) 2003-11-12
MY134212A (en) 2007-11-30
CN100416159C (en) 2008-09-03
AU2003200962B2 (en) 2008-05-08
NO20031113D0 (en) 2003-03-11
US7134770B2 (en) 2006-11-14
NO20031113L (en) 2003-09-15
ATE287565T1 (en) 2005-02-15
DE10210919A1 (en) 2003-10-16
RU2314567C2 (en) 2008-01-10
PL202192B1 (en) 2009-06-30
US20030210552A1 (en) 2003-11-13
SG115524A1 (en) 2005-10-28
CA2421908A1 (en) 2003-09-13
LT2003021A (en) 2003-09-25
DE10210919B4 (en) 2006-07-27

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