EP1050067B1 - Electric incandescent lamp with infrared reflecting layer - Google Patents
Electric incandescent lamp with infrared reflecting layer Download PDFInfo
- Publication number
- EP1050067B1 EP1050067B1 EP99969839A EP99969839A EP1050067B1 EP 1050067 B1 EP1050067 B1 EP 1050067B1 EP 99969839 A EP99969839 A EP 99969839A EP 99969839 A EP99969839 A EP 99969839A EP 1050067 B1 EP1050067 B1 EP 1050067B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- shape
- incandescent lamp
- light
- luminous body
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
- H01K1/325—Reflecting coating
Definitions
- the invention is based on an electric light bulb, in particular one Halogen incandescent lamp, with IR reflection layer according to the preamble of Claim 1.
- incandescent lamp with a flat one Luminous body, a so-called flat core filament.
- the cross section of Flat core filaments have not, like the filament of incandescent for General lighting, a circular cross section, but rather an elongated cross section.
- the reason for this is the adjustment of the Geometry of the spiral shape to the preferred for the respective main area of application Radiation characteristics of the lamp or filament.
- the difference for rotationally symmetrical radiation characteristics of conventional Incandescent lamps are made possible by the flat luminous body of the aforementioned Lamp types emphasize areal radiation, such as for technical-scientific lighting purposes as well as in photo optics, especially for projection purposes.
- Typical electrical Power values are in the range of approx. 50 to 400 watts.
- the one applied to the inside and / or outside surface of the lamp bulb Coating reflecting IR radiation - hereinafter shortened as an IR layer designated - causes a large part of the radiated from the filament IR radiation power is reflected back on it.
- the result achieved increase in lamp efficiency can be constant electrical power consumption for a temperature increase of the Luminous body and consequently an increase in luminous flux. on the other hand can be a predetermined luminous flux with lower electrical power consumption achieve - an advantageous "energy saving effect".
- Another desirable effect is that due to the IR layer significantly less IR radiation power radiated through the lamp bulb and so that the environment, e.g. an optical projection device, less is heated than with conventional light bulbs.
- the shape of the one provided with the IR layer Lamp bulb specially matched to the shape of the filament.
- GB-A 2 082 383 discloses a lamp with an ellipsoidal bulb an annular filament is arranged in the circular focal line is. An IR layer is applied to the piston wall.
- EP-A 0 470 496 discloses a lamp with a spherical bulb, in the center of which is a cylindrical filament. This font teaches that the loss of efficiency due to the deviation of the filament from the ideal spherical shape to an acceptable one under the following conditions Dimension can be limited. Either have piston diameters and filament diameter or length within a tolerance range be carefully coordinated, or the diameter of the Luminous body must be significantly smaller (small factor 0.05) than that of Lamp bulb. There is also a lamp with an ellipsoidal bulb specified, in the focal line an elongated filament axially arranged is.
- the invention has for its object a light bulb with a flat core filament to be specified as a flat filament, characterized by an efficient Returning the emitted IR radiation to the luminous element and consequently, a high level of efficiency. Another aspect is that Distribution of the returned IR radiation on the filament. Moreover should enable compact lamp dimensions with high luminance are being striven for, especially for low-voltage halogen incandescent lamps becomes.
- the invention proposes to specifically shape the lamp bulb so that the Lamp bulb with respect to lying in the light plane of the flat filament Axes has no rotational symmetry, but that the lamp bulb rather, a deviation from the rotational symmetry on the flat geometry of the filament, i.e. flattened shape having. If necessary, the shape of the base of the flat Luminous body on the actually irradiated by the reflected IR radiation Coordinate surface of the filament.
- the invention proposes that the shape of the lamp bulb essentially corresponds to an ellipsoid with three semiaxes, of which are at least two different lengths and the filament is arranged within the lamp bulb such that the shortest of the three semiaxes of this ellipsoid perpendicular to the light plane of the filament is oriented. In this way, the lamp bulb receives with viewing direction in the light plane looks at the desired flat shape.
- three sections are shown through an ellipsoid 1 with the three Semi-axes a, b and c.
- the cuts correspond to the viewing directions in the three Cartesian spatial axes x, y and z, which are also collinear with the three Semi-axes a, b and c are selected.
- the semiaxis c is shorter than the others two semiaxes a and b.
- a stylized one flat filament 2 with two mutually parallel rectangular bases 3 or 3 'centered. These two base areas 3 and 3 ' correspond to those of a real flat filament Luminous surfaces that essentially generate the luminous flux of the lamp.
- the luminous element 2 is now oriented within the ellipsoid 1 in such a way that its fictional light plane is perpendicular to the semiaxis c. So get lost the semiaxes a and b in the light plane and consequently parallel to the two base areas 3, 3 'of the luminous element 2.
- the specific values for the three semi-axes are in the individual case on the shape and to specifically coordinate the dimensions of the filament, that the most efficient possible return of the emitted IR radiation the filament is reached.
- the voting criteria for the three semi-axes also more towards a distribution that is as uniform as possible the returned IR radiation can be shifted on the filament.
- local IR radiation power maxima so-called "hot spots” are usually detrimental to the long life of the filament and should therefore be avoided.
- Improvement in distribution uniformity can also be achieved by a targeted adjustment of the outer shape of the filament to the shape of the retroreflective spot can be achieved on the filament. It has for example, it was found that, in the case of the maximum return of the emitted IR radiation, the retroreflective spot is substantially oval. For this reason, it can be advantageous for the filament as well choose an oval shape and also its outer dimensions to largely adapt those of the reflection spot.
- Luminous bodies with a circular base and for lighting fixtures that are at least rough Approximation can be considered circular, e.g. Filament with square base, it can be advantageous to use the semiaxes a and b of the ellipsoid to be of equal length.
- the targeted matching of the three ellipse half axes to the luminous element can be supported with so-called ray tracing methods.
- there light rays emanating from the flat core helix are tracked and the Ellipse semi-axes determined such that maximum return efficiency or an optimal uniformity of the distribution of the returned Rays of light on the. Helix or whatever Compromise is achieved.
- FIG. 2 shows an exemplary embodiment of a lamp 4 according to the invention shown schematically. It is a halogen light bulb with a nominal voltage of 24 V and a nominal power of 250 W or in a variant for 150 W.
- the following values refer to unless stated otherwise, to both types of services. For both types deviating values is first the value for the 250 W lamp type and the corresponding value for the 150 W lamp type specified.
- the lamp has a lamp bulb 5 which is pinched on one side and which its first end merges into a neck 6, which is in a pinch seal 7 ends. At its opposite end, the lamp bulb 5 has one Pump tip 8 on. The position of the pump tip 8 and the pinch seal 7 define a longitudinal axis LA of the lamp 4.
- TiO 2 TiO 2
- Ta 2 O 5 is also suitable.
- the IR layer also covers about half of the pinch seal 7. In this way, a particularly dimensionally stable shape of the IR layer 9 is achieved, since when the lamp bulb 5 is manufactured, the outer surface of the calculated contour of the ellipsoid is embossed.
- the individual layers in the region of the piston surface are particularly uniform. This reduces color errors.
- the length of the lamp neck 6 is approximately 2 mm with a maximum width of approx.9.6 mm.
- the lamp bulb 5 is made of quartz glass with a wall thickness of approx. 1 mm.
- the lamp bulb 5 shaped as an ellipsoid.
- the respective length of the three semiaxes a, b and c of this ellipsoid are 8.4 mm, 9 mm and 8 mm (8.2 mm, 8.5 mm, respectively) or 8 mm) for maximum efficiency and 9 mm, 9.6 mm and 8 mm for optimal Uniformity of the radiation return with the 250 W lamp type.
- a luminous element 10 is arranged centrally within the lamp bulb 5.
- the luminous element 10 consists of a simple flat core filament (shown here only schematically, but see Figures 3a and 3b).
- the spiral axis is oriented perpendicular to the longitudinal axis LA of the lamp 9 and extends in that spanned by the semiaxes a and b of the ellipsoid Level.
- FIGS. 3a and 3b For further details on the flat core helix 10, see FIGS. 3a and 3b and the associated description of the figures.
- the current leads 11a, b are formed directly by the spiral wire and connected with molybdenum foils 12a, b in the pinch seal 7.
- the Molybdenum foils 12a, b are in turn connected to outer socket pins 13a, b.
- the lamp 4 has a color temperature of approximately 3400 K.
- the luminous flux is 12230 lm (6750 lm) with a power consumption of 265 W (158 W), accordingly a luminous efficacy of approx. 46 lm / W (42.7 lm / W).
- a comparable one conventional lamp will use the same electrical power only achieved a luminous flux of 9150 lm (5050 lm), accordingly a luminous efficacy of approx. 34.4 lm / W (32 lm / W).
- an increase in efficiency of up to 34% (33.7%) can be achieved.
- FIGS. 3a and 3b show the flat core coil 10 from FIG. 2 in one Side view or in a section along the line AA.
- the Flachkemdietaryl 10 is made of a tungsten wire with a diameter of approx. 292 ⁇ m and wound a total of 17 turns (20 turns).
- the length L of the Helix 10 in the direction of the helix axis WA is approximately 7.4 mm (6.9 mm).
- the height H and width B are approx. 4 mm (3.26 mm) and 1.4 mm (1.15 mm).
- In the sectional view in Figure 3b is one in the sectional plane essentially elongated oval turn 14 of the flat core coil 10 and the gate 15 can be seen.
- the flat core filament of the lamp is off FIG. 2 shaped in such a way that the side view of the flat core helix is an oval, has a contour matched to the shape of the IR reflection spot.
- the respective height H of the individual turns on one first end of the helix small, then grows in the middle of the helix on it maximum height (in the example of the lamp from FIG. 2 to approx. 4 mm at 250 W Type) and decreases to the other end of the coil.
- the following tables 1, 2 and 3 use a ray tracing program to find the ellipse half axes a, b, c found suitable for three power types, namely 150 W, 250 W and 400 W.
- the ellipse semi-axis c was specified in each case and the other two ellipse semi-axes a, b were determined.
- the maximum value for the semiaxis c is often predetermined, depending on the area of use, for example in projectors by the intended installation depth.
- the wall thickness was assumed to be constant at 0.8 mm.
- the dimensions of the flat core helix provided for the respective power type in the plane spanned by the ellipse half axes a, b are also given.
- the following ratios of the three semi-axes a, b, c of an ellipsoid essentially forming the lamp bulb have been found turned out to be advantageous: 0.9 ⁇ c / a ⁇ 0.99, in particular 0.95 ⁇ c / a ⁇ 0.98 and 0.8 c c / b 0,9 0.97, in particular 0.85 c c / b horizoni 0.95, the two semi-axes a, b being in the plane of the flat-core coil and the semi-axis c being perpendicular to the light level of the flat-core coil.
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Organic Insulating Materials (AREA)
- Resistance Heating (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
Description
Die Erfindung geht aus von einer elektrischen Glühlampe, insbesondere einer Halogenglühlampe, mit IR-Reflexionsschicht gemäß dem Oberbegriff des Anspruchs 1.The invention is based on an electric light bulb, in particular one Halogen incandescent lamp, with IR reflection layer according to the preamble of Claim 1.
Es handelt sich dabei insbesondere um eine Glühlampe mit einem flachen Leuchtkörper, einer sogenannten Flachkernwendel. Der Querschnitt von Flachkernwendeln hat nicht, wie die Glühwendel von Glühlampen für die Allgemeinbeleuchtung, einen kreisförmigen Querschnitt, sondern vielmehr einen länglichen Querschnitt. Der Grund hierfür liegt an der Anpassung der Geometrie der Wendelform an die für das jeweilige Haupteinsatzgebiet bevorzugte Abstrahlcharakteristik der Lampe bzw. der Glühwendel. Im Unterschied zur rotationssymmetrischen Abstrahlcharakteristik konventioneller Glühlampen ermöglicht der flache Leuchtkörper der eingangs erwähnten Lampentypen eine betont flächige Abstrahlung, wie sie unter anderem für technisch-wissenschaftliche Beleuchtungszwecke sowie in der Fotooptik, insbesondere für Projektionszwecke, gewünscht wird. Typische elektrische Leistungswerte liegen im Bereich von ca. 50 bis 400 Watt.It is in particular an incandescent lamp with a flat one Luminous body, a so-called flat core filament. The cross section of Flat core filaments have not, like the filament of incandescent for General lighting, a circular cross section, but rather an elongated cross section. The reason for this is the adjustment of the Geometry of the spiral shape to the preferred for the respective main area of application Radiation characteristics of the lamp or filament. The difference for rotationally symmetrical radiation characteristics of conventional Incandescent lamps are made possible by the flat luminous body of the aforementioned Lamp types emphasize areal radiation, such as for technical-scientific lighting purposes as well as in photo optics, especially for projection purposes. Typical electrical Power values are in the range of approx. 50 to 400 watts.
Die auf der Innen- und/ oder Außenfläche des Lampenkolbens aufgebrachte IR-Strahlung reflektierende Beschichtung - im folgenden verkürzend als IR-Schicht bezeichnet - bewirkt, daß ein Großteil der vom Leuchtkörper abgestrahlten IR-Strahlungsleistung auf ihn zurück reflektiert wird. Die dadurch erzielte Erhöhung des Lampenwirkungsgrades läßt sich einerseits bei konstanter elektrischer Leistungsaufnahme für eine Temperaturerhöhung des Leuchtkörpers und folglich eine Steigerung des Lichtstromes nutzen. Andererseits läßt sich ein vorgegebener Lichtstrom mit geringerer elektrischer Leistungsaufnahme erzielen - ein vorteilhafter "Energiespareffekt". Ein weiterer wünschenswerter Effekt ist, daß aufgrund der IR-Schicht deutlich weniger IR-Strahlungsleistung durch den Lampenkolben hindurch abgestrahlt und damit die Umgebung, z.B. eine optische Projektionsvorrichtung, weniger erwärmt wird, als bei herkömmlichen Glühlampen.The one applied to the inside and / or outside surface of the lamp bulb Coating reflecting IR radiation - hereinafter shortened as an IR layer designated - causes a large part of the radiated from the filament IR radiation power is reflected back on it. The result achieved increase in lamp efficiency can be constant electrical power consumption for a temperature increase of the Luminous body and consequently an increase in luminous flux. on the other hand can be a predetermined luminous flux with lower electrical power consumption achieve - an advantageous "energy saving effect". Another desirable effect is that due to the IR layer significantly less IR radiation power radiated through the lamp bulb and so that the environment, e.g. an optical projection device, less is heated than with conventional light bulbs.
Wegen der unvermeidlichen Absorptionsverluste in der IR-Schicht nimmt die Leistungsdichte der IR-Strahlungsanteile innerhalb des Lampenkolbens mit der Anzahl der Reflexionen ab und folglich auch der Wirkungsgrad der Glühlampe. Entscheidend für die tatsächlich erzielbare Steigerung des Wirkungsgrades ist es deshalb, die für eine Rückführung der einzelnen IR-Strahlen auf den Leuchtkörper erforderliche Anzahl von Reflexionen zu minimieren. Zu diesem Zweck ist die Form des mit der IR-Schicht versehenen Lampenkolbens auf die Form des Leuchtkörpers speziell abgestimmt.Because of the inevitable absorption losses in the IR layer increases the power density of the IR radiation components within the lamp bulb with the number of reflections and consequently also the efficiency of the Light bulb. Crucial for the actually achievable increase in efficiency it is therefore necessary for the return of the individual IR rays to minimize the number of reflections required on the filament. For this purpose, the shape of the one provided with the IR layer Lamp bulb specially matched to the shape of the filament.
In der GB-A 2 082 383 ist eine Lampe mit rotationsellipsoidem Kolben offenbart
in dessen kreisförmiger Brennlinie eine ringförmige Glühwendel angeordnet
ist. Auf der Kolbenwand ist eine IR-Schicht aufgebracht.GB-
In der EP-A 0 470 496 ist eine Lampe mit kugelförmigem Kolben offenbart, in dessen Zentrum ein zylindrischer Leuchtkörper angeordnet ist. Diese Schrift lehrt, daß die Einbuße an Effizienz durch die Abweichung des Leuchtkörpers von der idealen Kugelform unter folgenden Voraussetzungen auf ein akzeptables Maß begrenzt werden kann. Entweder müssen Kolbendurchmesser und Leuchtkörperdurchmesser bzw. -länge innerhalb eines Toleranzbereichs sorgfältig aufeinander abgestimmt werden, oder aber der Durchmesser des Leuchtkörpers muß deutlich kleiner sein (kleiner Faktor 0,05) als der des Lampenkolbens. Außerdem ist eine Lampe mit rotationsellipsoidem Kolben angegeben, in dessen Brennlinie ein länglicher Leuchtkörper axial angeordnet ist.EP-A 0 470 496 discloses a lamp with a spherical bulb, in the center of which is a cylindrical filament. This font teaches that the loss of efficiency due to the deviation of the filament from the ideal spherical shape to an acceptable one under the following conditions Dimension can be limited. Either have piston diameters and filament diameter or length within a tolerance range be carefully coordinated, or the diameter of the Luminous body must be significantly smaller (small factor 0.05) than that of Lamp bulb. There is also a lamp with an ellipsoidal bulb specified, in the focal line an elongated filament axially arranged is.
Der Erfindung liegt die Aufgabe zugrunde, eine Glühlampe mit einer Flachkemwendel als flachem Leuchtkörper anzugeben, die sich durch eine effiziente Rückführung der emittierten IR-Strahlung auf den Leuchtkörper und folglich einen hohen Wirkungsgrad auszeichnet. Ein weiterer Aspekt ist die Verteilung der rückgeführten IR-Strahlung auf dem Leuchtkörper. Außerdem sollen kompakte Lampenabmessungen bei hohen Leuchtdichten ermöglicht werden, wie dies insbesondere für Niedervolt-Halogenglühlampen angestrebt wird.The invention has for its object a light bulb with a flat core filament to be specified as a flat filament, characterized by an efficient Returning the emitted IR radiation to the luminous element and consequently, a high level of efficiency. Another aspect is that Distribution of the returned IR radiation on the filament. Moreover should enable compact lamp dimensions with high luminance are being striven for, especially for low-voltage halogen incandescent lamps becomes.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.This object is achieved by the characterizing features of claim 1 solved. Find particularly advantageous configurations themselves in the dependent claims.
Die Erfindung schlägt vor, den Lampenkolben gezielt so zu formen, daß der Lampenkolben bezüglich in der Leuchtebene des flachen Leuchtkörpers liegenden Achsen keine Rotationssymmetrie aufweist, sondern daß der Lampenkolben vielmehr eine von der Rotationssymmetrie abweichende, auf die flache Geometrie des Leuchtkörpers abgestimmte, d.h. abgeflachte Form aufweist. Gegebenenfalls ist zusätzlich die Form der Grundfläche des flachen Leuchtkörpers auf die von der reflektierten IR-Strahlung tatsächlich bestrahlte Fläche des Leuchtkörpers abzustimmen.The invention proposes to specifically shape the lamp bulb so that the Lamp bulb with respect to lying in the light plane of the flat filament Axes has no rotational symmetry, but that the lamp bulb rather, a deviation from the rotational symmetry on the flat geometry of the filament, i.e. flattened shape having. If necessary, the shape of the base of the flat Luminous body on the actually irradiated by the reflected IR radiation Coordinate surface of the filament.
Insbesondere schlägt die Erfindung vor, daß die Form des Lampenkolbens im wesentlichen einem Ellipsoiden mit drei Halbachsen entspricht, von denen mindestens zwei unterschiedlich lang sind und wobei der Leuchtkörper innerhalb des Lampenkolbens derart angeordnet ist, daß die kürzeste der drei Halbachsen dieses Ellipsoiden senkrecht zur Leuchtebene des Leuchtkörpers orientiert ist. Auf diese Weise erhält der Lampenkolben mit Blickrichtung in der Leuchtebene betrachtet die angestrebte flache Form.In particular, the invention proposes that the shape of the lamp bulb essentially corresponds to an ellipsoid with three semiaxes, of which are at least two different lengths and the filament is arranged within the lamp bulb such that the shortest of the three semiaxes of this ellipsoid perpendicular to the light plane of the filament is oriented. In this way, the lamp bulb receives with viewing direction in the light plane looks at the desired flat shape.
Zur weiteren Erläuterung des Erfindungsgedankens wird im folgenden Bezug auf die Figuren 1a-1c genommen. Sie zeigen eine schematische Darstellung der prinzipiellen Zusammenhänge und führen einige für das weitere Verständnis der Erfindung wesentliche Größen ein.To further explain the inventive concept, reference is made in the following taken on Figures 1a-1c. They show a schematic representation of the basic connections and lead some for the further Understanding the invention essential sizes.
Gezeigt sind unter anderem drei Schnitte durch ein Ellipsoid 1 mit den drei
Halbachsen a, b bzw. c. Die Schnitte entsprechen den Blickrichtungen in den
drei kartesischen Raumachsen x, y und z, die zudem kollinear mit den drei
Halbachsen a, b bzw. c gewählt sind. Die Halbachse c ist kürzer als die übrigen
zwei Halbachsen a bzw. b. Innerhalb des Ellipsoiden 1 ist ein stilisierter
flacher Leuchtkörper 2 mit zwei zueinander parallelen rechteckigen Grundflächen
3 bzw. 3' zentriert angeordnet. Diese beiden Grundflächen 3 bzw. 3'
entsprechen bei einem realen flachen Leuchtkörper denjenigen beiden
Leuchtflächen, die im wesentlichen den Lichtstrom der Lampe erzeugen.Among other things, three sections are shown through an ellipsoid 1 with the three
Semi-axes a, b and c. The cuts correspond to the viewing directions in the
three Cartesian spatial axes x, y and z, which are also collinear with the three
Semi-axes a, b and c are selected. The semiaxis c is shorter than the others
two semiaxes a and b. Inside the ellipsoid 1 is a stylized one
Der Einfachheit wegen wird im folgenden auf eine fiktive Leuchtebene Bezug
genommen, welche als parallel und mittig zwischen den beiden Grundflächen
3, 3' verlaufend definiert ist.For the sake of simplicity, a fictional lighting level is referred to below
taken as parallel and centered between the two
Der Leuchtkörper 2 ist nun derart innerhalb des Ellipsoiden 1 orientiert, daß
seine fiktive Leuchtebene senkrecht zur Halbachse c steht. Demnach verlaufen
die Halbachsen a und b in der Leuchtebene und folglich parallel zu den
beiden Grundflächen 3, 3' des Leuchtkörpers 2.The
Die konkreten Werte für die drei Halbachsen sind im Einzelfall auf die Gestalt und die Abmessungen des Leuchtkörpers derart gezielt abzustimmen, daß eine möglichst effiziente Rückführung der emittierten IR-Strahlung auf den Leuchtkörper erreicht wird. Im Hinblick auf eine hohe Lebensdauer der Lampe kann die Gewichtung der Abstimmungskriterien für die drei Halbachsen auch mehr in Richtung einer möglichst gleichförmigen Verteilung der rückgeführten IR-Strahlung auf dem Leuchtkörper verschoben werden. Insbesondere lokale IR-Strahlungsleistungsmaxima, sogenannte "Hot Spots", sind einer langen Lebensdauer des Leuchtkörpers in der Regel abträglich und sollten deshalb vermieden werden.The specific values for the three semi-axes are in the individual case on the shape and to specifically coordinate the dimensions of the filament, that the most efficient possible return of the emitted IR radiation the filament is reached. With a view to a long life of the Lampe can weight the voting criteria for the three semi-axes also more towards a distribution that is as uniform as possible the returned IR radiation can be shifted on the filament. In particular local IR radiation power maxima, so-called "hot spots", are usually detrimental to the long life of the filament and should therefore be avoided.
Eine Verbesserung der Gleichförmigkeit der Verteilung kann auch durch eine gezielte Anpassung der äußeren Form des Leuchtkörpers an die Form des Rückstrahlungsflecks auf dem Leuchtkörper erzielt werden. Es hat sich beispielsweise herausgestellt, daß, im Falle der maximalen Rückführung der emittierten IR-Strahlung, der Rückstrahlungsfleck im wesentlichen oval ist. Aus diesem Grunde kann es vorteilhaft sein, für den Leuchtkörper ebenfalls eine ovale Form zu wählen und außerdem seine äußeren Abmessungen an jene des Rückstrahlungsflecks weitgehend anzupassen.Improvement in distribution uniformity can also be achieved by a targeted adjustment of the outer shape of the filament to the shape of the retroreflective spot can be achieved on the filament. It has For example, it was found that, in the case of the maximum return of the emitted IR radiation, the retroreflective spot is substantially oval. For this reason, it can be advantageous for the filament as well choose an oval shape and also its outer dimensions to largely adapt those of the reflection spot.
Bei rotationssymmetrischen Leuchtkörpern, d.h. Leuchtkörpern mit einer kreisförmigen Grundfläche und bei Leuchtkörpern, die zumindest in grober Näherung als kreisförmig betrachtet werden können, z.B. Leuchtkörper mit quadratischer Grundfläche, kann es vorteilhaft sein, die Halbachsen a und b des Ellipsoiden gleich lang zu wählen.In the case of rotationally symmetrical light bodies, i.e. Luminous bodies with a circular base and for lighting fixtures that are at least rough Approximation can be considered circular, e.g. Filament with square base, it can be advantageous to use the semiaxes a and b of the ellipsoid to be of equal length.
Die gezielte Abstimmung der drei Ellipsenhalbachsen auf den Leuchtkörper kann mit sogenannten Ray-Tracing-Verfahren unterstützt werden. Dabei werden von der Flachkernwendel ausgehende Lichtstrahlen verfolgt und die Ellipsenhalbachsen bestimmt derart, daß eine maximale Effizienz der Rückführung oder aber eine optimale Gleichmäßigkeit der Verteilung der rückgeführten Lichtstrahlen auf die. Wendel oder ein wie auch immer gearteter Kompromiß erzielt wird. The targeted matching of the three ellipse half axes to the luminous element can be supported with so-called ray tracing methods. there light rays emanating from the flat core helix are tracked and the Ellipse semi-axes determined such that maximum return efficiency or an optimal uniformity of the distribution of the returned Rays of light on the. Helix or whatever Compromise is achieved.
Im folgenden soll die Erfindung anhand eines Ausführungsbeispiels näher erläutert werden. Es zeigen:
- Figur 1a
- eine schematische Darstellung des Prinzips der Erfindung anhand eines Ellipsoiden und eines rechteckförmigen flachen Leuchtkörpers mit Blick in der z-Richtung,
- Figur 1b
- eine schematische Darstellung des Ellipsoiden mit Leuchtkörper aus Figur 1a mit Blick in der x-Richtung,
- Figur 1c
- wie Figur 1b, aber mit Blick in der y-Richtung,
Figur 2- eine NV-Halogenglühlampe mit IR-Schicht und einer Flachkernwendel sowie einer erfindungsgemäßen Kolbenform,
- Figur 3a
- eine schematische Darstellung einer Seitenansicht der Flachkemwendel
aus
Figur 2, - Figur 3b
- eine Schnittdarstellung der Flachkernwendel aus Figur 3a entlang der Linie AA.
- Figure 1a
- 1 shows a schematic representation of the principle of the invention using an ellipsoid and a rectangular flat luminous element with a view in the z direction,
- Figure 1b
- 1 shows a schematic illustration of the ellipsoid with the luminous element from FIG. 1 a, looking in the x direction,
- Figure 1c
- like FIG. 1b, but with a view in the y direction,
- Figure 2
- a low-voltage halogen incandescent lamp with an IR layer and a flat-core filament and a bulb shape according to the invention,
- Figure 3a
- 2 shows a schematic illustration of a side view of the flat core helix from FIG. 2,
- Figure 3b
- a sectional view of the flat core helix from Figure 3a along the line AA.
In Figur 2 ist ein Ausführungsbeispiel einer erfindungsgemäßen Lampe 4 schematisch dargestellt. Es handelt sich hierbei um eine Halogenglühlampe mit einer Nennspannung von 24 V und einer Nennleistung von 250 W bzw. in einer Variante für 150 W. Die nachfolgenden Werteangaben beziehen sich, falls nicht anders vermerkt, auf beide Leistungstypen. Bei für beide Typen abweichenden Werten ist zuerst der Wert für den 250 W-Lampentyp und dahinter in Klammern eingeschlossen der entsprechende Wert für den 150 W-Lampentyp angegeben.FIG. 2 shows an exemplary embodiment of a lamp 4 according to the invention shown schematically. It is a halogen light bulb with a nominal voltage of 24 V and a nominal power of 250 W or in a variant for 150 W. The following values refer to unless stated otherwise, to both types of services. For both types deviating values is first the value for the 250 W lamp type and the corresponding value for the 150 W lamp type specified.
Die Lampe weist einen einseitig gequetschten Lampenkolben 5 auf, der an
seinem ersten Ende in einen Hals 6 übergeht, der in einer Quetschdichtung 7
endet. An seinem gegenüberliegenden Ende weist der Lampenkolben 5 eine
Pumpspitze 8 auf. Die Position der Pumpspitze 8 und der Quetschdichtung 7
definieren eine Längsachse LA der Lampe 4.The lamp has a lamp bulb 5 which is pinched on one side and which
its first end merges into a
Auf der Außenfläche des Lampenkolbens 5 ist eine IR-Schicht 9 aufgetragen,
bestehend aus einem Interferenzfilter mit mehr als 20 Schichten TiO2 und
SiO2. Anstelle von TiO2 ist auch Ta2O5 geeignet. Die IR-Schicht überdeckt
außerdem noch zusätzlich ca. die Hälfte der Quetschdichtung 7. Auf diese
Weise wird zum einen eine besonders maßhaltige Form der IR-Schicht 9 erzielt,
da bei der Herstellung des Lampenkolbens 5 dessen Außenfläche die
berechnete Kontur des Ellipsoids aufgeprägt wird. Zum anderen sind durch
die Ausdehnung der IR-Schicht 9 auf einen Teil der Quetschdichtung 7 die
einzelnen Schichten im Bereich der Kolbenoberfläche besonders gleichmäßig.
Dadurch werden Farbfehler reduziert.An
Die Länge des Lampenhalses 6 beträgt ca. 2 mm bei einer maximalen Breite
von ca. 9,6 mm. Der Lampenkolben 5 ist aus Quarzglas mit einer Wanddicke
von ca. 1 mm gefertigt.The length of the
Mit Ausnahme der Quetschdichtung 7 und der Pumpspitze 8 ist der Lampenkolben
5 als Ellipsoid geformt. Die jeweilige Länge der drei Halbachsen a,
b und c dieses Ellipsoids betragen 8,4 mm, 9 mm bzw. 8 mm (8,2 mm, 8,5 mm
bzw. 8 mm) für maximale Effizienz sowie 9 mm, 9,6 mm und 8 mm für optimale
Gleichmäßigkeit der Strahlungsrückführung beim 250 W-Lampentyp.With the exception of the
Innerhalb des Lampenkolbens 5 ist ein Leuchtkörper 10 zentrisch angeordnet.
Der Leuchtkörper 10 besteht aus einer einfachen Flachkernwendel
(hier nur schematisch dargestellt, siehe aber Figuren 3a und 3b). Die Wendelachse
ist senkrecht zur Längsachse LA der Lampe 9 orientiert und verläuft
in der durch die Halbachsen a und b des Ellipsoiden aufgespannten
Ebene. Für weitere Details zur Flachkernwendel 10 wird auf die Figuren 3a
und 3b sowie die zugehörige Figurenbeschreibung verwiesen.A
Die Stromzuführungen 11a,b sind direkt durch den Wendeldraht gebildet
und mit Molybdän-Folien 12a,b in der Quetschdichtung 7 verbunden. Die
Molybdän-Folien 12a,b sind ihrerseits mit äußeren Sockelstiften 13a,b verbunden.The current leads 11a, b are formed directly by the spiral wire
and connected with
Im Inneren des Lampenkolbens 5 befindet sich eine Füllung aus ca. 3990 hPa Xenon (Xe) Stickstoff (N) Gemisch im Verhältnis Xe:N=88:12 mit einer Beimengung von 0,7 % (0,4 %) Bromwasserstoff (HBr).Inside the lamp bulb 5 there is a filling of approx. 3990 hPa Xenon (Xe) nitrogen (N) mixture in the ratio Xe: N = 88: 12 with an admixture of 0.7% (0.4%) hydrogen bromide (HBr).
Die Lampe 4 hat eine Farbtemperatur von ca. 3400 K. Der Lichtstrom beträgt 12230 lm (6750 lm) bei einer Leistungsaufnahme von 265 W (158 W), entsprechend einer Lichtausbeute von ca. 46 lm/W (42,7 lm/W). Bei einer vergleichbaren herkömmlichen Lampe wird bei der selben elektrischen Leistungsaufnahme nur ein Lichtstrom von 9150 lm (5050 lm) erzielt, entsprechend einer Lichtausbeute von ca. 34,4 lm/W (32 lm/W). Folglich kann im Vergleich dazu mit der erfindungsgemäßen Lampe ein Effizienzzuwachs von bis zu 34 % (33,7 %) erreicht werden.The lamp 4 has a color temperature of approximately 3400 K. The luminous flux is 12230 lm (6750 lm) with a power consumption of 265 W (158 W), accordingly a luminous efficacy of approx. 46 lm / W (42.7 lm / W). With a comparable one conventional lamp will use the same electrical power only achieved a luminous flux of 9150 lm (5050 lm), accordingly a luminous efficacy of approx. 34.4 lm / W (32 lm / W). Hence can in comparison with the lamp according to the invention an increase in efficiency of up to 34% (33.7%) can be achieved.
Die Figuren 3a und 3b zeigen die Flachkernwendel 10 aus Figur 2 in einer
Seitenansicht bzw. in einem Schnitt längs der Linie AA. Die Flachkemwendel
10 ist aus einem Wolframdraht mit einem Durchmesser von ca. 292 µm
und insgesamt 17 Windungen (20 Windungen) gewickelt. Die Länge L der
Wendel 10 in Richtung der Wendelachse WA beträgt ca. 7,4 mm (6,9 mm).
Die Höhe H und Breite B betragen ca. 4 mm (3,26 mm) bzw. 1,4 mm
(1,15 mm). In der Schnittdarstellung in Figur 3b ist eine in der Schnittebene
im wesentlichen länglich ovale Windung 14 der Flachkernwendel 10 sowie
der Anschnitt 15 zu erkennen. FIGS. 3a and 3b show the
In einer Variante (nicht dargestellt) ist die Flachkernwendel der Lampe aus Figur 2 derart geformt, daß die Seitenansicht der Flachkernwendel eine ovale, der Form des IR-Rückstrahlungsflecks angepaßten Kontur aufweist. Zu diesem Zweck ist die jeweilige Höhe H der einzelnen Windungen an einem ersten Ende der Wendel klein, wächst dann in der Mitte der Wendel auf ihre maximale Höhe (im Beispiel der Lampe aus Figur 2 auf ca. 4 mm beim 250 W Typ) an und nimmt zum anderen Ende der Wendel wieder ab.In one variant (not shown) the flat core filament of the lamp is off FIG. 2 shaped in such a way that the side view of the flat core helix is an oval, has a contour matched to the shape of the IR reflection spot. To for this purpose, the respective height H of the individual turns on one first end of the helix small, then grows in the middle of the helix on it maximum height (in the example of the lamp from FIG. 2 to approx. 4 mm at 250 W Type) and decreases to the other end of the coil.
Die folgenden Tabellen 1, 2 und 3 geben mit Hilfe eines Ray-Tracing-Programms als geeignet gefundenen Ellipsenhalbachsen a, b, c für drei Leistungstypen, nämlich 150 W, 250 W und 400 W an. Dabei wurde jeweils die Ellipsenhalbachse c vorgegeben und die beiden anderen Ellipsenhalbachsen a, b bestimmt. In der Praxis ist der maximale Wert für die Halbachse c oftmals, je nach Einsatzbereich, vorgegeben, beispielsweise in Projektoren durch die vorgesehene Einbautiefe. Die Wandstärke wurde mit 0,8 mm als konstant angenommen. Die für den jeweiligen Leistungstyp vorgesehenen Abmessungen der Flachkernwendel in der von den Ellipsenhalbachsen a, b aufgespannten Ebene sind ebenfalls angegeben. The following tables 1, 2 and 3 use a ray tracing program to find the ellipse half axes a, b, c found suitable for three power types, namely 150 W, 250 W and 400 W. The ellipse semi-axis c was specified in each case and the other two ellipse semi-axes a, b were determined. In practice, the maximum value for the semiaxis c is often predetermined, depending on the area of use, for example in projectors by the intended installation depth. The wall thickness was assumed to be constant at 0.8 mm. The dimensions of the flat core helix provided for the respective power type in the plane spanned by the ellipse half axes a, b are also given.
Nach den in obigen Tabellen dargestellten Ergebnissen und dem gegenwärtigen
Stand der Erkenntnisse in Bezug auf möglichst kompakte Kolbenformen
sowie auf die Abstimmungsmöglichkeiten im Hinblick auf maximale
Effizienz oder optimale Gleichförmigkeit haben sich folgende Verhältnisse
der drei Halbachsen a, b, c eines den Lampenkolben im wesentlichen formenden
Ellipsoiden als vorteilhaft herausgestellt:
0,9 ≤ c / a ≤ 0,99, insbesondere 0,95 ≤ c / a ≤ 0,98 und
0,8 ≤ c / b ≤ 0,97, insbesondere 0,85 ≤ c / b ≤ 0,95, wobei die beiden Halbachsen a, b
in der Ebene der Flachkernwendel und die Halbachse c senkrecht auf der
Leuchtebene der Flachkernwendel steht.According to the results shown in the tables above and the current state of knowledge regarding the most compact bulb shapes as well as the tuning options with regard to maximum efficiency or optimal uniformity, the following ratios of the three semi-axes a, b, c of an ellipsoid essentially forming the lamp bulb have been found turned out to be advantageous:
0.9 ≤ c / a ≤ 0.99, in particular 0.95 ≤ c / a ≤ 0.98 and
0.8 c c /
Claims (8)
- Electrical incandescent lamp, in particular a halogen incandescent lamp (4) having a lamp bulb (5) which has a coating (9) that reflects IR radiation, and having a flat luminous body (10) which defines a fictional plane of the light, is a flat-core element, is arranged inside the lamp bulb (5) and is held by means of two electricity supply leads (11a, 11b), with the two electricity supply leads (11a, 11b) being routed to the exterior in a gastight manner, characterized in that the shape of the lamp bulb (5) with respect to those axes which lie in the plane of the light have no rotational symmetry, but in that the lamp bulb (5) in fact has a shape which differs from rotational symmetry but is matched to the flat geometry of the luminous body (10), that is to say a flattened shape.
- Incandescent lamp according to Claim 1, with the shape of the lamp bulb (5) essentially corresponding to an ellipsoid (1) having three half-axes (a, b, c), at least two of which are of different lengths, and with the luminous body (2; 10) being arranged inside the lamp bulb (5) in such a manner that the shortest (c) of the three half-axes of this ellipsoid (1) is oriented at right-angles to the fictional plane of the light of the luminous body (2; 10).
- Incandescent lamp according to Claim 1 or 2, with the following value range applying to the relationships of the half-axes a, c:
0.9≤ c / a≤0.99, in particular 0.95≤ c / a≤0.98. - Incandescent lamp according to Claim 1, 2 or 3, with the following value range applying to the relationships of the half-axes b, c:
0.8 ≤ c / b≤ 0.97, in particular 0.85 ≤ c / b≤ 0.95. - Incandescent lamp according to one of the preceding claims, with the outline of the luminous body (10) having a rectangular shape parallel to the fictional plane of the light.
- Incandescent lamp according to one of the preceding claims, with the outline of the luminous body having an oval shape parallel to the fictional plane of the light.
- Incandescent lamp according to one of the preceding claims, with the outline of the luminous body having a circular shape, or at least a roughly approximately circular shape, parallel to the fictional plane of the light, in particular also the shape of a square or a regular polygon.
- Incandescent lamp according to one of the preceding claims, characterized in that the lamp bulb (5) has a lamp neck (6) at at least one end, which lamp neck (6) surrounds at least one electricity supply lead (11a, 11b) as closely as possible, and whose end (8) remote from the bulb is closed in a gastight manner.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19844519 | 1998-09-28 | ||
DE19844519A DE19844519C2 (en) | 1998-09-28 | 1998-09-28 | Electric light bulb with IR reflection layer |
PCT/DE1999/002897 WO2000019489A1 (en) | 1998-09-28 | 1999-09-13 | Electric incandescent lamp with infrared reflecting layer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1050067A1 EP1050067A1 (en) | 2000-11-08 |
EP1050067B1 true EP1050067B1 (en) | 2004-04-07 |
Family
ID=7882569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99969839A Expired - Lifetime EP1050067B1 (en) | 1998-09-28 | 1999-09-13 | Electric incandescent lamp with infrared reflecting layer |
Country Status (9)
Country | Link |
---|---|
US (1) | US6424089B1 (en) |
EP (1) | EP1050067B1 (en) |
JP (1) | JP4567196B2 (en) |
KR (1) | KR100527331B1 (en) |
AT (1) | ATE264006T1 (en) |
CA (1) | CA2311941A1 (en) |
DE (2) | DE19844519C2 (en) |
DK (1) | DK1050067T3 (en) |
WO (1) | WO2000019489A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10229014A1 (en) * | 2002-06-28 | 2004-02-05 | Siemens Ag | Spotlight system for organized event technology, has filament arranged relative to bulb and bulb geometry such that some infrared radiation from filaments are reflected back by bulb to filaments |
CN1973353A (en) * | 2003-03-20 | 2007-05-30 | 皇家飞利浦电子股份有限公司 | An electric incandescent lamp with infrared reflecting layer |
DE10318051A1 (en) * | 2003-04-17 | 2004-11-04 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | halogen bulb |
US20090134793A1 (en) * | 2007-11-28 | 2009-05-28 | Cseh Geza Z | Ir reflecting grating for halogen lamps |
JP5178610B2 (en) * | 2009-04-13 | 2013-04-10 | シャープ株式会社 | Light irradiation device |
US7965026B2 (en) * | 2009-06-25 | 2011-06-21 | General Electric Company | Lamp with IR suppressing composite |
US20180049466A1 (en) * | 2013-03-15 | 2018-02-22 | Healthier Choices Management Corp | Electronic cigarette |
US20180035721A1 (en) * | 2013-03-15 | 2018-02-08 | Healthier Choices Management Corp | Electronic cigarette |
US11064732B2 (en) * | 2013-03-15 | 2021-07-20 | Healthier Choices Management Corp. | Electronic vaporizer cartridge with encased heat source |
US20190274355A1 (en) * | 2018-03-09 | 2019-09-12 | Healthier Choices Management Corp | Electronic cigarette |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1130069B (en) * | 1960-07-08 | 1962-05-24 | Patra Patent Treuhand | Electric light bulb with mirrored part for projectors |
NL6505581A (en) * | 1965-04-30 | 1966-10-31 | ||
FR2465313B1 (en) * | 1979-09-17 | 1986-04-11 | Duro Test Corp | ELLIPSOIDAL ENCLOSURE FOR INCANDESCENT LAMPS, INCLUDING MEANS FOR RETURNING INFRARED ENERGY |
US4375605A (en) * | 1979-09-17 | 1983-03-01 | Duro-Test Corporation | Ellipsoidal envelope for incandescent lamp with infrared energy return means |
US4379249A (en) * | 1980-08-20 | 1983-04-05 | Duro-Test, Corporation | Incandescent lamp with ellipsoidal envelope and infrared reflector |
US4535269A (en) * | 1983-08-01 | 1985-08-13 | General Electric Company | Incandescent lamp |
US4756701A (en) * | 1986-06-19 | 1988-07-12 | General Electric Company | Method of making a tungsten-halogen lamps having an enhanced temperature gradient |
JPH03283350A (en) * | 1990-03-30 | 1991-12-13 | Toshiba Lighting & Technol Corp | Incandescent lamp |
EP0470496A3 (en) * | 1990-08-07 | 1992-08-26 | Toshiba Lighting & Technology Corporation | Incandescent lamp and reflector type projection lamp |
JPH0492358A (en) * | 1990-08-07 | 1992-03-25 | Toshiba Lighting & Technol Corp | Bulb with reflection mirror |
DE4420607A1 (en) | 1994-06-13 | 1995-12-14 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electric incandescent lamp and filament for incandescent lamps |
JP3532011B2 (en) * | 1995-03-31 | 2004-05-31 | ハリソン東芝ライティング株式会社 | Light bulbs, vehicle headlamps and vehicles |
JP3518151B2 (en) * | 1996-03-27 | 2004-04-12 | 東芝ライテック株式会社 | Incandescent light bulbs and reflective lighting devices |
DE19701792A1 (en) * | 1997-01-20 | 1998-07-23 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Incandescent lamp with reflective coating |
DE19701794A1 (en) * | 1997-01-20 | 1998-07-23 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Incandescent lamp with reflective coating |
-
1998
- 1998-09-28 DE DE19844519A patent/DE19844519C2/en not_active Expired - Fee Related
-
1999
- 1999-09-13 US US09/554,880 patent/US6424089B1/en not_active Expired - Fee Related
- 1999-09-13 DE DE59909116T patent/DE59909116D1/en not_active Expired - Lifetime
- 1999-09-13 AT AT99969839T patent/ATE264006T1/en not_active IP Right Cessation
- 1999-09-13 DK DK99969839T patent/DK1050067T3/en active
- 1999-09-13 WO PCT/DE1999/002897 patent/WO2000019489A1/en active IP Right Grant
- 1999-09-13 JP JP2000572898A patent/JP4567196B2/en not_active Expired - Fee Related
- 1999-09-13 CA CA002311941A patent/CA2311941A1/en not_active Abandoned
- 1999-09-13 KR KR10-2000-7005776A patent/KR100527331B1/en not_active IP Right Cessation
- 1999-09-13 EP EP99969839A patent/EP1050067B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19844519A1 (en) | 2000-04-06 |
KR100527331B1 (en) | 2005-11-09 |
ATE264006T1 (en) | 2004-04-15 |
CA2311941A1 (en) | 2000-04-06 |
JP2002526896A (en) | 2002-08-20 |
US6424089B1 (en) | 2002-07-23 |
DE59909116D1 (en) | 2004-05-13 |
WO2000019489A1 (en) | 2000-04-06 |
DE19844519C2 (en) | 2000-08-03 |
KR20010032533A (en) | 2001-04-25 |
JP4567196B2 (en) | 2010-10-20 |
EP1050067A1 (en) | 2000-11-08 |
DK1050067T3 (en) | 2004-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0765528B1 (en) | Electric incandescent lamp and radiant body for incandescent lamps | |
DE69630068T2 (en) | Fluorescent Lamp | |
DE69232978T2 (en) | light bulb | |
EP1050067B1 (en) | Electric incandescent lamp with infrared reflecting layer | |
DE3428125A1 (en) | IMPROVED BULB | |
DE2644977A1 (en) | ELECTRIC REFLECTOR LAMP | |
DE19844164B4 (en) | Energy saving lamps with film reflecting in the infrared | |
DE3428181A1 (en) | BULB | |
DE3517526A1 (en) | REFLECTOR LAMP WITH AN IMPROVED NECK SECTION TO INCREASE USEFUL LIGHT EMISSION | |
EP0894336B1 (en) | Incandescent lamp with reflection coating | |
EP2342737B1 (en) | Halogen incandescent lamp for operation on mains voltage | |
DE19701792A1 (en) | Incandescent lamp with reflective coating | |
DE8123238U1 (en) | BULB | |
EP1745501B1 (en) | Spiral-wound filament for an incandescent lamp and incandescent lamp | |
DE3140839A1 (en) | FLAT-SHAPED MERCURY VAPOR LOW-PRESSURE DISCHARGE LAMP | |
DE19843852A1 (en) | Electrical incandescent lamp has light body(ies) in lamp vessel with flat, esp. strip-shaped, light body element(s) radiating in infrared and visible regions, infrared reflective filter(s) | |
DE212008000065U1 (en) | Halogen bulb with IRC coating | |
DE2709221A1 (en) | MIRROR CONDENSER LAMP | |
DE2814823A1 (en) | ELECTRIC LIGHT BULB | |
DE532426C (en) | A luminaire made of a flat metal wire coil for electric light bulbs | |
WO1999034410A1 (en) | Flat signalling lamp with dielectrically impeded discharge | |
WO2008151955A2 (en) | Lamp vessel, method for the production thereof, and lamp comprising a lamp vessel | |
EP1309985A1 (en) | Compact high-voltage electric light-bulb | |
DE8812010U1 (en) | Single-sided squeezed halogen lamp | |
EP1614144A2 (en) | Halogen incandescent lamp |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20000904 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20021217 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040407 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040407 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040407 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REF | Corresponds to: |
Ref document number: 59909116 Country of ref document: DE Date of ref document: 20040513 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040707 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040707 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040718 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040722 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040913 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040930 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040930 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040930 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050110 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040907 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20110926 Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59909116 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE Effective date: 20111130 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20120917 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120927 Year of fee payment: 14 Ref country code: FR Payment date: 20121002 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20121023 Year of fee payment: 14 Ref country code: BE Payment date: 20121010 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59909116 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE Effective date: 20130205 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20120911 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 59909116 Country of ref document: DE Owner name: OSRAM GMBH, DE Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE Effective date: 20130822 |
|
BERE | Be: lapsed |
Owner name: *PATENT-TREUHAND-G.- FUR ELEKTRISCHE GLUHLAMPEN M. Effective date: 20130930 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20140401 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP Effective date: 20130930 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20130913 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20140530 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59909116 Country of ref document: DE Effective date: 20140401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130930 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130913 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130913 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140401 Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140401 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130930 |