DE29706646U1 - Light source - Google Patents

Light source

Info

Publication number
DE29706646U1
DE29706646U1 DE29706646U DE29706646U DE29706646U1 DE 29706646 U1 DE29706646 U1 DE 29706646U1 DE 29706646 U DE29706646 U DE 29706646U DE 29706646 U DE29706646 U DE 29706646U DE 29706646 U1 DE29706646 U1 DE 29706646U1
Authority
DE
Germany
Prior art keywords
spherical
arrangement according
light
light source
emitting diodes
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
DE29706646U
Other languages
German (de)
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.)
Zentrum fuer Sonnenenergie und Wasserstoff Forschung Baden Wuerttemberg
Original Assignee
Zentrum fuer Sonnenenergie und Wasserstoff Forschung Baden Wuerttemberg
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 Zentrum fuer Sonnenenergie und Wasserstoff Forschung Baden Wuerttemberg filed Critical Zentrum fuer Sonnenenergie und Wasserstoff Forschung Baden Wuerttemberg
Priority to DE29706646U priority Critical patent/DE29706646U1/en
Publication of DE29706646U1 publication Critical patent/DE29706646U1/en
Priority to DE19815868A priority patent/DE19815868C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F21V5/00—Refractors for light sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1845—Optical systems, lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2207/00—Features of light signals
    • B61L2207/02—Features of light signals using light-emitting diodes [LEDs]
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Eye Examination Apparatus (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Description

Beschreibung
Lichtquelle Description
Light source

Es sind Anwendungen bekannt, bei welchen hocheffiziente Leuchtdioden zu Feldern angeordnet werden. Aufgund ihrer Abstrahlcharakteristik mit je nach Bauart sehr geringen Öffnungswinkel ist die Verwendung zusätzlicher abbildender Optik nicht notwendig. Solche Systeme sind beispielsweise in der Straßenverkehrsleittechnik als selbstleuchtende Verkehrsschilder und als Straßenampel im Einsatz. Bei Signalleuchten für den Bahnverkehr sind zur Erzielung der geforderten Leuchtstärke verhältnismäßig wenige Leuchtdioden notwendig. Bei planer Montierung der wenigen notwendigen Leuchtdioden in Richtung der Hauptachse der Leuchte wäre der optische Gesamteindruck gegenüber der ursprünglichen Lichtquelle, nämlich Glühfadenlampe oder Gasglühlicht, stark verändert und die Forderung nach einem möglichst homogenen Signalbild nicht erfüllt. Zur Erzielung einer geringen Leuchtdichteschwankung an der Frontscheibe der Leuchte ist daher die Verwendung einer abbildenden Optik unabdingbar.There are known applications in which highly efficient light-emitting diodes are arranged in fields. Due to their radiation characteristics with, depending on the design, very small opening angles, the use of additional imaging optics is not necessary. Such systems are used, for example, in road traffic control technology as self-illuminating traffic signs and as traffic lights. In signal lights for rail traffic, relatively few light-emitting diodes are required to achieve the required luminosity. If the few required light-emitting diodes were mounted flat in the direction of the main axis of the light, the overall optical impression would be significantly changed compared to the original light source, namely an incandescent lamp or gas-incandescent light, and the requirement for the most homogeneous signal image possible would not be met. In order to achieve a low luminance fluctuation on the front panel of the light, the use of imaging optics is therefore essential.

Die Erfindung beschreibt eine Anordnung von Lichtquellen ohne kugelstrahlerförmige Abstrahlcharakteristik in der Form, daß eine annähernd punktförmige Lichtquelle unter Beibehaltung der abbildenden Optik in einer Leuchte ersetzt werden kann.The invention describes an arrangement of light sources without a spherical beam characteristic in such a way that an approximately point-shaped light source can be replaced in a luminaire while retaining the imaging optics.

Ein Kugelstrahler ist durch eine konstante Leuchtstärke unabhängig von jeweiligen Betrachtungswinkel gekennzeichnet. Er hat demnach eine kugelförmige Abstrahlcharakteristik.A spherical radiator is characterized by a constant luminous intensity regardless of the viewing angle. It therefore has a spherical radiation characteristic.

In der technischen Realisierung der Glühfadenlampe oder eines Gaslichts wird diese kugelförmige Abstrahlcharakteristik wegen der Lampenfassung oder der Gaszuführung auf eine kugelsegmentförmige Abstrahlcharakterästik reduziert. Diese Tatsache bleibt im folgenden ohne Bedeutung, da die Überlegungen genauso für kugelsegmentförmige Abstrahlcharakteristika gelten. Vereinfachend wird im folgenden die kugelförmige Abstrahlcharakteristik betrachtet.In the technical implementation of the incandescent lamp or a gas light, this spherical radiation characteristic is reduced to a spherical segment-shaped radiation characteristic due to the lamp socket or the gas supply. This fact is irrelevant in the following, since the considerations also apply to spherical segment-shaped radiation characteristics. For the sake of simplicity, the spherical radiation characteristic is considered below.

Die Erfindung beschreibt die Anordnung von Lichtquellen ohne kugelstrahlerförmige Abstrahlcharakteristik auf einer Kugelschale (Fig.1, Bezeichnung 1) in der Form, daß für die gesamte Anordnung annähernd wieder die gleiche kugelförmige Abstrahlcharakteristik gilt wie für den ursprünglichen Kugelstrahler. Die Anordnung der Lichtquellen ohne kugelstrahlerförmige Abstrahlcharakteristik auf der Kugeloberfläche ergibt sich aus deren Abstrahlcharakteristika.The invention describes the arrangement of light sources without spherical radiator-like radiation characteristics on a spherical shell (Fig. 1, designation 1) in such a way that the entire arrangement has approximately the same spherical radiation characteristics as the original spherical radiator. The arrangement of the light sources without spherical radiator-like radiation characteristics on the spherical surface results from their radiation characteristics.

Im Rahmen der Erfindung werden gemäß Schutzanspruch 4 als Lichtquellen ohne kugelstrahlerförmige Abstrahlcharakteristäk Leuchtdioden verwendet.Within the scope of the invention, according to claim 4, light-emitting diodes are used as light sources without spherical radiation characteristics.

In Fig. 1 sind die Leuchtdioden durch Richtungsvektoren angedeutet. Exemplarisch ist einer der Richtungsvektoren mit der Bezeichnung 2 versehen. Diese Leuchtdioden sind auf einem hohlkugelförmigen elektrisch isolierenden Träger montiert. Die elektrische Kontaktierung der Leuchtdioden erfolgt im Inneren der Hohlkugel. Bei kugelsegmentförmiger Ausführung kann die Kontaktierung auch auf der planen Rückseite des gegebenfalls massiven Trägers erfolgen. Der elektrische Anschluß dieser Anordnung erfolgt über Anschlußdrähte, welche die Kugeloberfläche nach außen durchdringen. Zur leichteren Austauschbarkeit einer Glühfadenlampe gegen diesen Leuchtdiodenstrahler ist die Kontaktierung über einen, der Glühfadenlampe baugleichen, Lampensockel möglich.In Fig. 1, the light-emitting diodes are indicated by direction vectors. As an example, one of the direction vectors is marked 2. These light-emitting diodes are mounted on a hollow spherical, electrically insulating support. The electrical contact of the light-emitting diodes takes place inside the hollow sphere. In the case of a spherical segment-shaped design, the contact can also take place on the flat back of the possibly solid support. The electrical connection of this arrangement takes place via connecting wires which penetrate the sphere surface to the outside. To make it easier to replace an incandescent filament lamp with this light-emitting diode spotlight, contact can be made via a lamp base that is identical in construction to the incandescent filament lamp.

Wird bei der abbildenden Optik nur ein Kugelsegment der Punktlichtquelle erfaßt, so kann auch die ersetzende Anordnung des Leuchtdiodenstrahlers auf einen KugelabschnittIf only one spherical segment of the point light source is captured in the imaging optics, then the replacement arrangement of the LED emitter can also be limited to a spherical segment

anstelle einer Kugel reduziert werden. Dieser Fall tritt beispielsweise bei der
Nachtbeieuchtung von Formsignalen der Deutschen Bahn durch Propangaslichter auf. Bei diesen Lampen ist der verwendete Reflektorspiegel auf der Gegenseite der Hauptöffnung ebenfalls offen, um eine Kontrollmöglichkeit von der Leuchtenrückseite zu schaffen. Diese Kontrollmöglichkeit dient nicht der eigentlichen Signalfunktion und kann gegebenenfalls
entfallen.instead of a sphere. This case occurs, for example, in the
Nighttime illumination of Deutsche Bahn semaphore signals using propane gas lights. With these lamps, the reflector mirror used on the opposite side of the main opening is also open to provide a control option from the back of the lamp. This control option does not serve the actual signal function and can be
are omitted.

Claims (11)

SchutzansprücheProtection claims 1. Anordnung von nichtpunktförmigen Lichtquellen auf einer Kugelschale in der Form, daß eine Lichtquelle mit der Charakteristik eines Kugelstrahlen ersetzt werden kann unter Beibehaltung einer unter Umständen vorhandenen abbildenden Optik.1. Arrangement of non-point light sources on a spherical shell in such a way that a light source with the characteristics of a spherical beam can be replaced while retaining any imaging optics that may be present. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß für die gesamte Anordnung annähernd wieder die gleiche kugelförmige Abstrahlcharakteristik gilt wie für die ursprüngliche punktförmige Lichtquelle.2. Arrangement according to claim 1, characterized in that for the entire arrangement approximately the same spherical radiation characteristic applies as for the original point-shaped light source. 3. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß als Lichtquelle mit der Charakteristik eines Kugelstrahlers eine Glühfadenlampe oder ein Gasglühlicht verwendet wird.3. Arrangement according to claim 1, characterized in that a filament lamp or a gas lamp is used as the light source with the characteristics of a spherical radiator. 4. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß als Lichtquellen ohne kugelstrahlerförmige Abstrahlcharakteristik Leuchtdioden verwendet werden.4. Arrangement according to claim 1, characterized in that light-emitting diodes are used as light sources without spherical radiation characteristics. 5. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Richtungsvektoren der Leuchtdioden sich im Kugelmittelpunkt M (Fig. 1) schneiden und von diesem wegzeigen und dieser Kugeimittelpunkt M identisch ist mit dem der ursprünglichen Lichtquelle mit der Charakteristik eines Kugelstrahlers.5. Arrangement according to claim 1, characterized in that the direction vectors of the light-emitting diodes intersect at the sphere center M (Fig. 1) and point away from it and this sphere center M is identical to that of the original light source with the characteristics of a spherical radiator. 6. Anordnung nach Anspruch 5, dadurch gekennzeichnet, daß die räumliche Verteilung der Leuchtdioden auf der Kugelschale sich nach nach deren Abstrahlcharakteristik richtet.6. Arrangement according to claim 5, characterized in that the spatial distribution of the light-emitting diodes on the spherical shell depends on their radiation characteristics. 7. Anordnung nach Anspruch 6, dadurch gekennzeichnet, daß der elektrische Anschluß der Leuchdioden über einen Glühlampensockel erfolgt.7. Arrangement according to claim 6, characterized in that the electrical connection of the light-emitting diodes is made via a light bulb base. 8. Anordnung nach Anspruch 7, dadurch gekennzeichnet, daß die Anpassung der Betriebsspannung über ein Vorschaltgerät in oder am Glühlampensockel erfolgt.8. Arrangement according to claim 7, characterized in that the adjustment of the operating voltage takes place via a ballast in or on the bulb base. 9. Anordnung nach Anspruch 8, dadurch gekennzeichnet, daß der Kugelschalenförmige Träger in Form einer Hohlkugel ausgebildet ist.9. Arrangement according to claim 8, characterized in that the spherical shell-shaped carrier is designed in the form of a hollow sphere. 10. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß der von der abbildenden Optik erfaßte Raumwinkel des Kugelstrahlers nicht den gesamten kugelförmigen Raum umfaßt, sondern z.B. nur den Halbraum oder einen beliebigen Bruchteil.10. Arrangement according to claim 1, characterized in that the solid angle of the spherical radiator detected by the imaging optics does not encompass the entire spherical space, but for example only the half-space or an arbitrary fraction. 11. Anordnung nach Anspruch 10, dadurch gekennzeichnet, daß der Träger in Form eines Kugelschalenabschnitts ausgebildet ist.11. Arrangement according to claim 10, characterized in that the carrier is designed in the form of a spherical shell section.
DE29706646U 1997-04-14 1997-04-14 Light source Expired - Lifetime DE29706646U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29706646U DE29706646U1 (en) 1997-04-14 1997-04-14 Light source
DE19815868A DE19815868C2 (en) 1997-04-14 1998-04-08 Light source, in particular for signal lights for rail traffic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29706646U DE29706646U1 (en) 1997-04-14 1997-04-14 Light source

Publications (1)

Publication Number Publication Date
DE29706646U1 true DE29706646U1 (en) 1997-10-09

Family

ID=8038927

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Application Number Title Priority Date Filing Date
DE29706646U Expired - Lifetime DE29706646U1 (en) 1997-04-14 1997-04-14 Light source
DE19815868A Expired - Fee Related DE19815868C2 (en) 1997-04-14 1998-04-08 Light source, in particular for signal lights for rail traffic

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19815868A Expired - Fee Related DE19815868C2 (en) 1997-04-14 1998-04-08 Light source, in particular for signal lights for rail traffic

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DE (2) DE29706646U1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29914333U1 (en) 1999-08-16 1999-12-09 FER Fahrzeugelektrik GmbH, 99817 Eisenach Bicycle headlights
DE19938734A1 (en) * 1999-08-16 2001-03-01 Fer Fahrzeugelektrik Gmbh Light, especially for vehicle, has light source arranged so that central light source axis is not parallel to main beam direction in which reflector deflects light from source
WO2002005356A1 (en) * 2000-07-12 2002-01-17 Hella Fahrzeugteile Austria Gmbh & Co Kg Lamp with an led light source
DE10034594B4 (en) * 2000-07-14 2006-03-16 Sirona Dental Systems Gmbh Dental treatment light
DE10034767A1 (en) * 2000-07-18 2002-05-02 Hella Kg Hueck & Co lamp
DE10039053A1 (en) * 2000-08-10 2002-02-28 Bosch Gmbh Robert Fastener for a wiper
DE10063409A1 (en) * 2000-12-19 2002-07-04 Klaus Baulmann Illumination unit which includes multiple of LED elements which are areally distributed and fitted on an areal carrying element also connectable with electric cable so that light
DE10113526A1 (en) * 2001-03-20 2002-10-02 Joerg Hohbaum Lamp for fixing in a low-voltage halogen lamp holder has an integrated standard reflector casing with a high-power LED in/near its focal point.
DE10160052A1 (en) * 2001-12-06 2003-06-18 Hella Kg Hueck & Co Vehicle light has light elements on periphery of bearer part arranged to radiate radially outwards and with laterally arranged contact feet that make flat contact with contact surfaces
DE10328576A1 (en) * 2003-06-25 2005-01-13 Hermann Mellert Gmbh & Co. Kg Mobile light, e.g. torch, has switching device with which LED element(s) of one light arrangement can be switched on and off separately from that or those of the other light arrangement
DE10261008B4 (en) * 2002-12-17 2005-02-24 Pintsch Bamag Antriebs- Und Verkehrstechnik Gmbh Signal and driving light for rail vehicles
DE10339774A1 (en) * 2003-05-09 2004-12-09 Hugo Görner GmbH Bicycle headlights with an LED as a light source
DE10324869A1 (en) * 2003-06-02 2005-01-05 Siemens Ag Signal light for railway vehicle has number of light emitting diodes inclined relative to direction of travel of railway vehicle in order to improve illumination
DE10355878B3 (en) * 2003-11-25 2005-08-25 Siemens Ag light signal
EP1544074B1 (en) * 2003-12-17 2006-11-02 Pintsch Bamag Antriebs- und Verkehrstechnik GmbH Headlamp and signaling lights for a railway vehicle.
DE102005004581A1 (en) * 2005-01-26 2006-08-10 Siemens Ag Light signaling system e.g. signaler, for e.g. industrial area, has illuminant e.g. light emitting diode-arrangement with organic light emitting diodes, and diffusing panel with segment that stands in defined angle deviation of optical axis
DE102005038645A1 (en) * 2005-08-16 2007-02-22 Rapp, Peter Support plate for LEDs comprises a central horizontal circular surface for positioning LEDs
DE102008022346A1 (en) * 2008-04-30 2009-11-05 Siemens Aktiengesellschaft light signal
DE102012206614A1 (en) 2012-04-23 2013-10-24 Siemens Aktiengesellschaft light signal
JP6271183B2 (en) 2013-08-12 2018-01-31 株式会社小糸製作所 Vehicle lighting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9414688U1 (en) * 1994-09-10 1994-12-15 Gäde, Michael, 46446 Emmerich Light source for traffic light systems
AU3088997A (en) * 1996-05-23 1997-12-09 Siemens Aktiengesellschaft Lighting device for signalling, identification or marking

Also Published As

Publication number Publication date
DE19815868C2 (en) 2000-01-27
DE19815868A1 (en) 1998-10-15

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19971120

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20001123

R157 Lapse of ip right after 6 years

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