WO2010136248A1 - Lampe électrique - Google Patents

Lampe électrique Download PDF

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Publication number
WO2010136248A1
WO2010136248A1 PCT/EP2010/054603 EP2010054603W WO2010136248A1 WO 2010136248 A1 WO2010136248 A1 WO 2010136248A1 EP 2010054603 W EP2010054603 W EP 2010054603W WO 2010136248 A1 WO2010136248 A1 WO 2010136248A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
reflector
lamp according
light guide
luminous element
Prior art date
Application number
PCT/EP2010/054603
Other languages
German (de)
English (en)
Inventor
Andreas Czarnotta
Original Assignee
Andreas Czarnotta
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 Andreas Czarnotta filed Critical Andreas Czarnotta
Priority to EP10717076A priority Critical patent/EP2435751B1/fr
Publication of WO2010136248A1 publication Critical patent/WO2010136248A1/fr

Links

Classifications

    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • 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
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to an electric lamp having a base and a transparent cover body connected to the base, with at least one luminous element, which is arranged on a carrier fixed to the base.
  • a light source with a pear-shaped housing in which a plurality of luminous elements are arranged on a support.
  • the lighting elements are positioned in the region of a transparent covering body, so that the light beam emitted by the lighting elements can escape into the environment.
  • the transparent cover body is connected to a non-transparent base, which allows a contact element for the connection of the light-emitting elements to an external energy source.
  • LEDs light elements allow energy-saving operation of the light source.
  • a disadvantage of the known light source is that the lighting elements must be aligned to form the predetermined light distribution according to a carrier.
  • Object of the present invention is therefore to develop an electric lamp such that an effective and glare-free light output is guaranteed to produce a predetermined light distribution.
  • the invention in conjunction with the preamble of claim 1, characterized in that in the main emission in front of the luminous element, at least one reflector is arranged with a passage opening through which a part of the light beam emitted by the luminous element passes, and that in the main emission before the passage opening of the reflector at least one further light guide means is arranged, so that the part of the light beam is reflected to generate a predetermined light distribution on a reflection surface of the reflector and / or guided out.
  • the particular advantage of the invention is that the light beam emitted by a luminous element can be distributed or deflected by a reflector and by at least one further light guide means so that a relatively fast and glare-free light beam is emitted.
  • relatively low-energy lighting elements such as LED lighting elements
  • a homogenization of the luminous flux over the surface of a transparent cover body can be achieved, as known in conventional light bulbs.
  • a light guide means is formed as a light guide which extends in a passage opening of a reflector.
  • the light guide detects a preferably large part of the light beam emitted by the luminous element and transports it into an axial region of the lamp in which a further light guide can take place.
  • To the one part of the coupled-out light can be reflected on a reflection surface of the reflector.
  • a part of the light coupled out from the light guide can strike directly on a lens designed as a light guide means, which is arranged in the main emission direction in front of the reflector. It thus takes place a homogenization of the luminous flux over the surface of the covering instead, wherein a light distribution can be realized according to the specifications.
  • both the lens and the reflector are hemispherical in shape, wherein they include the light outcoupling surface of the light guide.
  • the lens allows a relatively voluminous light, which counteracts unwanted glare.
  • the carrier and the lighting element are covered by a translucent or transparent hood which has a receiving opening for the light guide.
  • the glare can be counteracted by a light beam which is emitted directly by the luminous element and which radiates only through the covering body.
  • integration of at least one reflector, preferably two reflectors, within the housing of the light source already a light guide can take place by light deflection within the housing, so that a light beam are given with a predetermined light distribution to the environment can.
  • a reflector within the light source housing, a defined light deflection can take place, wherein the minimum least one light-emitting element can always be in the same relative position to the carrier.
  • the light source housing contains, on the one hand, a first reflector which has two passage openings for passing a first partial light bundle and, on the other hand, a further second reflector which reflects a part of the first partial light bundle transmitted through the first reflector.
  • the two reflectors each have such reflection surfaces, so that the effectiveness of the light emission can be improved.
  • the second reflector which is arranged on a side of the first reflector facing away from the luminous element, can be used to reflect the light in the direction of the first reflector, so that it can be directed to the first reflector in a specific way to the side or to the front can be redirected.
  • the first reflector and the second reflector can each be designed to be mirror-coated on both sides or only on one side.
  • a reflective element facing the back of the first reflector is formed mirrored, a portion of the light beam emitted from the light beam can be deflected to a rear side of the light source, so that the opening angle of the light source can be increased, for example in a range of 160 ° to 270 °.
  • a lens is arranged between the first reflector and the luminous element, so that the light emitted by the luminous element is collected and / or scattered in the desired manner can.
  • the light distribution can be further varied.
  • the light source is cylindrical, with a cylinder axis extending coaxially to the optical axis of the luminous element.
  • This design is similar to a known design for an incandescent lamp, so that it can be used in a wide range of applications.
  • the light source can be tubular or elongate, wherein it extends transversely to the main emission of preferably a plurality of lighting elements.
  • a greater luminous intensity can be achieved, which can be used to illuminate rooms.
  • FIG. 1 shows a side view of a light source according to a first embodiment
  • FIG. 2 shows a side view of a light source according to a second embodiment
  • FIG. 3 is a perspective view of a light source according to a third embodiment
  • FIG. 4 shows an end view of the light source according to the third embodiment according to FIG. 3,
  • FIG. 5 shows a side view of a light source according to a fourth embodiment
  • Figure 6 is a perspective side view of an electric lamp without cover body according to another embodiment.
  • FIG. 7 shows a longitudinal section through the electric lamp according to FIG. 6.
  • an electric lamp (light source 1)
  • the same has a housing 2, within which a luminous element 3, a lens 5 arranged in the main emission direction 4 in front of the luminous element 3 and a first reflector 6 and a second reflector 7 are arranged.
  • the luminous element 3 is designed as a light-emitting diode (LED luminous element), which is positioned on a support 8.
  • the light-emitting diodes 3 may also be formed as LED chips or be formed by the SMD technology (Surface Mounted Device) applied to a support plate light-emitting diodes.
  • the carrier 8 is designed as a printed circuit board, which additionally has electronic components for controlling the light-emitting diode 3.
  • From the carrier 8 lead contact wires 9 through a carrier 8 bearing base 10 outwardly to form a connection for electrical lines to an external power source.
  • the carrier 8 is fastened in the non-transparent base 10 via fastening means (not shown).
  • the base 10 is followed by a transparent cover body 11 (cover cylinder), through which the light emitted by the light-emitting element 3 can be radiated outward into the environment.
  • the cover body 11 is preferably connected by casting with the base 10.
  • the lens 5 is designed as a converging lens and collects the light L emitted by the luminous element 3 in the direction of the first reflector 6 or second reflector 7.
  • the convergent lens is designed as a plano-convex lens which is at a distance from the luminous element 3 located.
  • the luminous element 3 is located in a focal point of the convex exit surface of the lens 5, so that the light L can be radiated substantially parallel in the direction of the reflectors 6, 7.
  • the luminous element 3 may also be arranged only in the vicinity of the focal point of the lens 5.
  • the first reflector 6 is arranged between the second reflector 7 and the lens 5. It has a frusto-conical shape, wherein on a side facing the luminous element 3, a first passage opening 12 and on a second reflector 7 side facing a second passage opening 13 is formed, wherein a diameter of the first passage opening 12 is smaller than a diameter of the second passage opening 13th
  • the first reflector 6 is arranged coaxially with respect to an optical axis 14 of the luminous element 3 and allows a first partial light bundle 15 of the light L emitted by the luminous element 3 to pass through the first reflector 6 in the main emission direction 4 and then either strike the second reflector 7 or is led past the same.
  • a second partial light bundle 16 of the emitted light L strikes one of the rear side 17 of the first reflector 6 facing the luminous element 3, which is embodied as a specular reflection surface, so that the second partial light bundle 16 is deflected towards the side and / or to the rear against the main emission direction 4 becomes.
  • a front side 18 of the first reflector 6 facing away from the luminous element 3 is mirror-formed as a reflection surface so that a part 15 'of the first partial light bundle 15 deflects on the front side 18 of the first reflector 6 after reflection on a rear side 19 of the second reflector 7 facing the luminous element 3 and then preferably radiated forward through the cover body 11.
  • the second reflector 7 has a lens-shaped reflecting surface.
  • the Thus formed reflecting surfaces of the first reflector 6 and / or the second reflector 7 spherical and / or hemispherical and / or lenticular and / or conical and / or parabolic and / or ellipsoidal and / or funnel-shaped.
  • FIG. 2 An alternative embodiment of a light source 1 'shown in FIG. 2 differs from the light source 1 according to the first embodiment according to FIG. 1 in that a first reflector 6' is hemispherical instead of conical.
  • FIG. 5 An alternative embodiment of a light source 1 "shown in FIG. 5 differs from the light source 1 according to the first embodiment according to FIG. 1 in that a first reflector 6" is funnel-shaped instead of conical or hemispherical.
  • the housing 2 and the transparent cover body 11 of the light source 1, 1 ' are cylindrical.
  • a longitudinal axis of the housing 2 or of the covering body 11 extends coaxially to the optical axis 14 of the luminous element 3.
  • an elongated light source 24 may be formed with an elongated and / or tubular housing 25 which extends transversely to the main emission direction in an extension direction.
  • a plurality of lighting elements 3 is mounted on a common carrier plate 26 is arranged.
  • a first reflector 27 and a second reflector 28 are arranged in the main emission direction in front of the luminous elements 3 arranged in a common plane.
  • the light is not rotationally symmetrical, but with respect to a longitudinal center plane 29 of the housing 25 emitted symmetrically or asymmetrically.
  • the function of the reflectors 27, 28 corresponds to the function of the reflectors 6, 7 according to the preceding embodiments.
  • the housing 25 or a transparent cover body 30 and the support plate 26 and the first reflector 27 and the second reflector 28 extend in a straight line. According to an alternative embodiment, not shown, these could also extend arcuately or wavy, depending on the purpose.
  • the light source 24 may be arranged in a housing 24 'of a luminaire, which carries a reflector 31. As a result, part of the light emitted to the side or to the rear can be redirected forward for radiation.
  • the light source 1, 1 ' may also be integrated in a housing provided with an additional reflector.
  • the light source 1, 1 ' can be provided for purposes in which a spot-like radiation is to take place substantially to the front.
  • the support plate 26 may be equipped on both sides with a plurality of light-emitting elements 3. In this case, light in be radiated opposite directions. On both sides of the support plate 26 are then mirror images of the first reflectors 27 and second reflectors 28. Advantageously, this can be done by a 360 ° radiation.
  • only a single reflector may be arranged in the housing 2.
  • This can be, for example, a reflector provided with an aperture, which transmits part of the light emitted by the luminous element 3 in the main emission direction and reflects another part towards the rear side.
  • an electric lamp 32 has a base 33 and a transparent covering body 34 connected thereto as a housing.
  • the base 33 has a foot contact, not shown, in the usual way. as an external contact 33 'on.
  • the base 33 may be of the type E27, for example.
  • the luminous element 3 is designed as an LED luminous element or LED chip, which is arranged on a support 8 (printed circuit board). On the circuit board 8 further electronic components for controlling the LED lighting element 3 may be arranged.
  • a reflector 35 In the main emission direction 4 in front of the luminous element 3, a reflector 35 is arranged, which has a rear reflection surface 37 on a front side facing away from the luminous element 3, a front reflection surface 36 and a rear side facing the luminous element 3.
  • the reflector 35 has a passage opening 38 through which a light guide means designed as a light guide 39 extends axially.
  • the light guide 39 has a widened portion 40, which faces the luminous element 3 and has a light input surface 41 on an end face facing the luminous element 3.
  • the widened portion 40 extends from the arranged in the vicinity of the light emitting element 3 Lichteinkoppel composition 41 substantially up to the through hole 38 of the reflector 35.
  • the light guide 39 has a in the main emission direction 4 adjacent to the widened portion 40 narrow section 42, which has a light output surface 43 on a front side remote from the luminous element 3.
  • the widened portion 40 and the narrow portion 42 are each cylindrical in shape, with the narrow portion 42 having a smaller diameter than the widened portion 40.
  • the narrow portion 42 has a diameter which is equal to the diameter of the passageway. Opening 38 matches.
  • the light guide 39 is made of a clear plastic or glass material.
  • the light incoupling surface 41 is concave-shaped, so that a large part 15 of the light emitted by the luminous element 3 detected light, is forwarded by total reflection on lateral surfaces of the light guide 39 in a region of the reflector 34.
  • the light outcoupling surface 43 is preferably concave-shaped or trough-shaped, it being ensured by forming the light outcoupling surface 43 as an at least partially reflecting surface that a part 15 '' of the light beam 15 in _Hauptabstrahlraum 4 is directed to a lens 44 formed as a light guide means and on the other a second part 15 'of the light beam 15 is emitted counter to the main emission direction 4 in the direction of the reflection surface 36, reflected at the same and then over the lens
  • both the reflector 35 and the lens 44 are hemispherical in shape.
  • the lens 44 is connected with its hemisphere surface with a front edge 45 of the reflector 35 and thus covers a front edge opening of the reflector 35 from.
  • the light output surface 41 of the light guide 39 is thus completely surrounded by light guide means, namely the reflector 35 and the lens 44.
  • the punctiform or relatively small-area Lichtabs is offset or harmonized by the Lichtauskoppel constitutional 43 of the light guide 39.
  • the lens and / or the reflector may also be formed conical or parabolic or ellipsoidal or elongated transverse to the optical axis. Since the light incoupling surface 41 does not completely cover the luminous element 3, a part 16 of the light emitted by the luminous element 4 can radiate past the optical waveguide 39 to the covering body 34. So that this light emission 16 does not lead to unwanted glare, the support 8 and the light-emitting element 3 are covered by a translucent or transparent hood 46, which has a central receiving opening for the widened portion 40 of the light guide 39.
  • the hood 46 has a scattering surface which, for example, is frosted or chrome-plated or roughened by sandblasting. For example, it may be provided with a fluorescent plastic to achieve a scattering effect.
  • the reflector 35, the lens 44 and the hood 46 are rotationally symmetrical and arranged coaxially to an axis A of the lamp 32 and to an optical axis of the luminous element 3. So that light can also be radiated into a rear space of the lamp 32, the rear reflection surface 37 is mirror-formed, as is the front reflection surface 36, so that after reflection of the part 16 of the light on the rear reflection surface 37, a lateral or rear light emission is ensured.
  • the cover body 34 may be frosted or crystal clear.
  • the lens 44 may also be formed as a reflector, which preferably extends in an axial region, see embodiment according to FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne une lampe électrique comprenant un culot et un corps de couverture transparent relié au culot, au moins un élément d'éclairage qui est disposé sur un support fixé au culot, au moins un réflecteur présentant une ouverture traversante par laquelle passe une partie du faisceau lumineux émis par l'élément d'éclairage étant disposé, dans le sens principal de rayonnement, devant l'élément d'éclairage et au moins un autre moyen de guidage de lumière étant disposé, dans le sens principal de rayonnement, devant l'ouverture traversante du réflecteur de sorte qu'une partie du faisceau lumineux est réfléchie sur une surface réfléchissante du réflecteur et/ou est émise de manière guidée pour produire une distribution de lumière prédéfinie.
PCT/EP2010/054603 2009-05-29 2010-04-07 Lampe électrique WO2010136248A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10717076A EP2435751B1 (fr) 2009-05-29 2010-04-07 Lampe électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009023216A DE102009023216B4 (de) 2009-05-29 2009-05-29 Lichtquelle
DE102009023216.8 2009-05-29

Publications (1)

Publication Number Publication Date
WO2010136248A1 true WO2010136248A1 (fr) 2010-12-02

Family

ID=42359544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/054603 WO2010136248A1 (fr) 2009-05-29 2010-04-07 Lampe électrique

Country Status (3)

Country Link
EP (1) EP2435751B1 (fr)
DE (1) DE102009023216B4 (fr)
WO (1) WO2010136248A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8641233B2 (en) 2009-07-31 2014-02-04 Osram Gmbh Lighting device having light diodes
EP2884155A1 (fr) * 2013-12-16 2015-06-17 Glashütte Limburg Leuchten GmbH + Co. KG Éclairage avec guide de lumière

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002273A1 (de) 2004-01-16 2005-08-11 Reinhold Wein Leuchtdiodenbirne mit integrierter Elektronik und Schraub- oder Bajonettverschluss für den Ersatz von Glühbirnen in Fahrrädern oder anderen Fahrzeugen
US20090121238A1 (en) * 2007-11-08 2009-05-14 John Patrick Peck Double collimator led color mixing system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5335157A (en) * 1992-01-07 1994-08-02 Whelen Technologies, Inc. Anti-collision light assembly
DE4417695C2 (de) * 1994-05-20 1998-01-29 Reitter & Schefenacker Gmbh Kraftfahrzeugleuchte

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002273A1 (de) 2004-01-16 2005-08-11 Reinhold Wein Leuchtdiodenbirne mit integrierter Elektronik und Schraub- oder Bajonettverschluss für den Ersatz von Glühbirnen in Fahrrädern oder anderen Fahrzeugen
US20090121238A1 (en) * 2007-11-08 2009-05-14 John Patrick Peck Double collimator led color mixing system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8641233B2 (en) 2009-07-31 2014-02-04 Osram Gmbh Lighting device having light diodes
DE102009035516B4 (de) * 2009-07-31 2014-10-16 Osram Gmbh Beleuchtungsvorrichtung mit Leuchtdioden
EP2884155A1 (fr) * 2013-12-16 2015-06-17 Glashütte Limburg Leuchten GmbH + Co. KG Éclairage avec guide de lumière
DE102013021357A1 (de) * 2013-12-16 2015-07-02 Glashütte Limburg Leuchten Gmbh + Co. Kg Leuchte mit Lichtleiter
DE102013021357B4 (de) * 2013-12-16 2015-11-05 Glashütte Limburg Leuchten Gmbh + Co. Kg Leuchte mit Lichtleiter
US9618683B2 (en) 2013-12-16 2017-04-11 Glashutte Limburg Leuchten Gmbh + Co. Kg Luminaire having a light guide

Also Published As

Publication number Publication date
EP2435751B1 (fr) 2013-03-06
DE102009023216A1 (de) 2010-12-02
EP2435751A1 (fr) 2012-04-04
DE102009023216B4 (de) 2011-11-10

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