EP1500868A2 - LED module for vehicle headlamps, and vehicle headlamp - Google Patents

LED module for vehicle headlamps, and vehicle headlamp Download PDF

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Publication number
EP1500868A2
EP1500868A2 EP04013157A EP04013157A EP1500868A2 EP 1500868 A2 EP1500868 A2 EP 1500868A2 EP 04013157 A EP04013157 A EP 04013157A EP 04013157 A EP04013157 A EP 04013157A EP 1500868 A2 EP1500868 A2 EP 1500868A2
Authority
EP
European Patent Office
Prior art keywords
light
characterized
carrier
diode module
emitting diode
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.)
Granted
Application number
EP04013157A
Other languages
German (de)
French (fr)
Other versions
EP1500868A3 (en
EP1500868B1 (en
Inventor
Wilhelm Brandenburg
Oliver Hering
Thomas Dr. Reiners
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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
Priority to DE10333836 priority Critical
Priority to DE10333836A priority patent/DE10333836A1/en
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1500868A2 publication Critical patent/EP1500868A2/en
Publication of EP1500868A3 publication Critical patent/EP1500868A3/en
Application granted granted Critical
Publication of EP1500868B1 publication Critical patent/EP1500868B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141Light emitting diodes [LED]
    • F21S41/147Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19Attachment of light sources or lamp holders
    • F21S41/192Details of lamp holders, terminals or connectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141Light emitting diodes [LED]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The light-emitting diode module (1) has a carrier (10) for the light-emitting diodes (21,22,23), which is provided with at least one light deflector (311-332), for deflecting the light provided by the light-emitting diodes in a given direction. The light-emitting diodes can be mounted on a mantle surface (11) of the carrier which is asymmetric to its longitudinal axis (A-A), together with a number of longitudinally spaced light deflectors. An independent claim for an automobile head lamp is also included.

Description

The invention relates to a light-emitting diode module for a vehicle headlight according to of the preamble of claim 1 and a vehicle headlamp according to of the preamble of claim 9.

I. State of the art

The published patent application WO 01/01037 A1 discloses a vehicle headlight with a plurality of light emitting diodes serving as a light source. That of the light-emitting diodes emitted light beam has at least two segments with light from different spectral ranges. A first segment of the light beam has a high proportion of white or yellow-orange light and a second segment points a high proportion of blue-green light.

The published patent application EP 1 298 382 A1 describes a light-emitting diode module for a vehicle lamp with a reflector and a support for light-emitting diodes, wherein the carrier has a flat surface on which the light-emitting diodes are arranged are.

II. Presentation of the invention

It is the object of the invention to provide a light-emitting diode module for a vehicle headlight to provide for the production of diverse, for a vehicle headlight typical light distributions is suitable. Besides, it is the job of Invention to provide a vehicle headlamp, the generation of the typical Light distributions of a vehicle headlight solely by means of LEDs as Allows light sources.

This object is achieved by the features of claim 1 or of claim 9. Particularly advantageous embodiments of the invention are described in the dependent claims.

The light-emitting diode module according to the invention has a support for several Light-emitting diodes, wherein the carrier according to the invention with at least one light-guiding means is provided to the light emitted by the LEDs in predetermined To direct spatial directions.

By the light-emitting diode module according to the invention is an optimal adaptation the shape of the spatially extended light source, which here consists of several light emitting diodes exists, allows the reflector of the vehicle headlight. It has shown, that by means of the light-emitting diode module according to the invention in a vehicle headlight different light distributions, in particular for dipped beam, High beam, fog light, parking light and daytime running lights, can be generated. The invention Light-emitting diode module serves as a light source in the vehicle headlight and replaces the conventional halogen incandescent lamp or metal halides and xenon-containing high pressure discharge lamp. The light-emitting diodes have significantly longer life than the aforementioned lamps.

The carrier of the light-emitting diode module according to the invention is preferably axially symmetric, in particular rotationally symmetrical. He has an axisymmetric formed on a longitudinal axis lateral surface on which several Light-emitting diodes and the at least one light-guiding means are arranged to the of light emitted to the LEDs in directions transverse to the longitudinal axis of the carrier to steer. The light-emitting diodes of the light-emitting diode module according to the invention are advantageous arranged along at least one ring whose ring axis parallel to Longitudinal axis of the carrier or extends in the longitudinal axis of the carrier. This can an optimal interaction of the light-emitting diode module with the reflector of Vehicle headlights are ensured.

The at least one light-guiding means is according to the preferred embodiment formed as a reflective surface. Preferably, the at least one light-reflecting surface facing the annularly arranged light-emitting diodes, to focus their light in directions transverse to the longitudinal axis of the carrier. According to of the preferred embodiment are even two light reflecting surfaces provided, which arranged along the at least one ring LEDs are facing to their light transverse to the longitudinal direction of the carrier on the reflector to steer the vehicle headlight. These light reflecting surfaces are preferably designed such that it surrounds the carrier in an annular manner to the Minimize light losses.

The light-guiding means can also be used as translucent refractor elements, for example As optical lenses, be formed, each directly on the annularly arranged light-emitting diodes are arranged and the light in directions bundle transversely to the longitudinal axis of the carrier. But it is also possible, the refractor element as a fixed directly on the ring-shaped light-emitting diodes, form annular light guide, the side annular surfaces totally reflective are formed and whose peripheral surface is transparent to the of the

Light emitting diodes emitted light in directions transverse to the longitudinal axis of the carrier bundle up.

The vehicle headlamp according to the invention has a light-emitting diode module, the has a support for a plurality of light-emitting diodes, a reflector for reflecting the light emitted from the light-emitting diode module and at least one optical lens for imaging the light reflected from the reflector. According to the invention the carrier of the light-emitting diode module of the vehicle headlight with at least a light-guiding means to the light emitted by the light-emitting diodes in to direct given spatial directions.

Preferably, the carrier has an axisymmetric to a longitudinal axis formed Surface on, wherein on the lateral surface a plurality of diodes and the at least a light guide means are arranged to emit the light emitted from the LEDs Light in directions transverse to the longitudinal axis of the carrier on the reflector of the vehicle headlight to steer.

By means of the vehicle headlamp according to the invention, as the light source exclusively Contains light emitting diodes, the same light distributions as with the conventional vehicle headlamps using incandescent or discharge lamps are equipped to be generated. To produce the largely mirror-symmetrical Has light distribution of the high beam, fog light, parking light and daytime running lights Vehicle headlights according to the invention advantageously at least one optical lens on, the emitted from the light emitting diode module and the vehicle headlight reflector reflected light projected onto the roadway. To generate the asymmetric Light distribution of the low beam, the vehicle headlight according to the invention additionally a shading device.

The light-emitting diodes mounted on the lateral surface of the carrier of the light-emitting diode module are preferably along several concentric with the longitudinal axis of the carrier extending rings arranged to the highest possible luminous flux and a possible to produce high light intensity. The distance between the aforementioned rings is chosen so that no or no significant Lichtabschattung by the light directing means is caused. For the same reason and for a reasonably good one Illustration of the light-emitting diode module serving as the light source through the reflector and to ensure the at least one optical lens of the vehicle headlight, the dimensions of the carrier of the light-emitting diode module are as small as possible.

III. Description of the Preferred Embodiment

The invention will be explained in more detail below with reference to a preferred embodiment. Show it:

FIG. 1
A side view of a light emitting diode module according to the preferred embodiment of the invention
FIG. 2
A side view of a vehicle headlamp with the light-emitting diode module shown in Figure 1

In the figure 1 is the preferred embodiment of the invention Light-emitting diode module shown schematically. The light-emitting diode module 1 has an axially symmetrical carrier 10 with a lateral surface 11, on the whole sixty four light emitting diodes are mounted. The carrier 10 is rotationally symmetrical formed with respect to its longitudinal axis A-A. Of the aforementioned sixty-four Light emitting diodes are sixteen LEDs 21 equidistant along a first ring arranged, whose ring axis with the longitudinal axis A-A of the carrier 10 is identical. Twenty-four LEDs 22 and 23 are equidistant along a respective second and third ring arranged, the ring axis also with the longitudinal axis A-A of the carrier 10 is identical. The distances between the aforementioned rings from light-emitting diodes 21, 22 and 23 is 9.9 mm in each case. The entire length of the Carrier 10 is 30 mm and its largest outer diameter is 10 mm. To two sides of each ring of light emitting diodes 21, 22, 23 are each two screens arranged with one of the light emitting diodes 21, 22, 23 facing, light-reflecting Surface 311, 312, 321, 322, 331, 332. The light-emitting diodes 21, 22, 23 are therefore, between the light reflecting surfaces 311, 312, 321, 322, 331, 332 of FIG two umbrellas each. The umbrellas with the light reflecting surfaces 311, 312, 321, 322, 331, 332 are fixed on the lateral surface 11 of the carrier 10, surround the carrier 10 annular and are relative to the longitudinal axis A-A of the Carrier 10 inclined so that the space between the light-reflecting Surfaces 311, 312, 321, 322, 331, 332, in which the light emitting diodes 21, 22, 23 arranged are conically shaped. As a result, the light from the LEDs 21, 22, 23rd emitted light in directions transverse to the longitudinal axis A-A. The umbrellas with the light reflecting surfaces 311, 312, 321, 322, 331, 332 each have one Outer diameter of 20 mm. The carrier 10 is hollow. Inside the Carrier 10 extend the electrical leads for the light emitting diodes 21, 22, 23rd

In the figure 2 is a schematic side view of a vehicle headlamp the light-emitting diode module 1 described above. This vehicle headlight has a conical free-form surface reflector 4 with a Construction depth of at least 65 mm. The light-emitting diode module 1 is completely in the Free-form surface reflector 4 arranged and therefore not visible in Figure 2. The Longitudinal axis A-A of the light-emitting diode module 1 is connected to the optical axis A-A of Free-form reflector 4 identical. The distance of the first ring of light emitting diodes 21 from the apex of the free-form surface reflector 4 is 9.81 mm. Corresponding is the distance of the second and third ring of light emitting diodes 22 and 23 from the apex of the free-form surface reflector 19.7 mm and 29.6 mm. The vehicle headlight also has a front of the light exit opening of the free-form surface reflector 4 arranged optical lens 5, to that of the free-form surface reflector 4 to project reflected light onto the roadway. Between the optical lens 5 and the free-form surface reflector 4 is at a distance from 100 mm from the apex of the reflector 4, an opaque aperture 6 is arranged, to create the cut-off line of the low beam.

Claims (16)

  1. Light-emitting diode module for a vehicle headlight, wherein the light-emitting diode module (1) has a carrier (10) for a plurality of light-emitting diodes, characterized in that the carrier (10) is provided with at least one light-directing means (311) in order to receive light from the light-emitting diodes ( 21) to direct light emitted in predetermined spatial directions.
  2. Light-emitting diode module according to claim 1, characterized in that the carrier has an axially symmetrical to a longitudinal axis (AA) formed lateral surface (11), wherein on the lateral surface (11) of the carrier (10) the light-emitting diodes (21) and the at least one light-guiding means (311) are arranged.
  3. Light-emitting diode module according to claim 2, characterized in that the light-emitting diodes (21) are arranged along at least one ring whose ring axis is parallel to the longitudinal axis (AA) or in the longitudinal axis (AA).
  4. Light-emitting diode module according to claim 1, characterized in that the at least one light-guiding means is designed as a light-reflecting surface (311).
  5. Light-emitting diode module according to Claims 3 and 4, characterized in that the at least one light-reflecting surface (311) faces the light-emitting diodes (21) arranged along the at least one ring.
  6. Light-emitting diode module according to claim 5, characterized in that arranged along the at least one ring light-emitting diodes (21) between two light-reflecting surfaces (311, 312) are arranged.
  7. Light-emitting diode module according to one or more of claims 1 to 6, characterized in that the at least one light-reflecting surface (311) surrounds the carrier (10) in an annular manner.
  8. Light-emitting diode module according to claim 1, characterized in that the at least one light-guiding means is designed as a refracting element.
  9. A vehicle headlamp having the following characteristics:
    a light-emitting diode module (1) having a support (10) for a plurality of light-emitting diodes,
    a reflector (4) for reflecting the light emitted from the light-emitting diode module (1),
    at least one optical lens (5) for imaging the light reflected by the reflector (4),
    characterized in that the carrier (10) is provided with at least one light-guiding means (311) for directing the light emitted by the light-emitting diodes (21) in predetermined spatial directions.
  10. Vehicle headlight according to claim 9, characterized in that the carrier (10) has an axially symmetrical to a longitudinal axis (AA) formed lateral surface (11), wherein on the lateral surface (11) of the carrier (10) the light-emitting diodes (21) and the at least one Light guide means (311) are arranged.
  11. Vehicle headlight according to claim 10, characterized in that the reflector (4) is formed axially symmetrical and the longitudinal axis of the carrier (AA) of the light-emitting diode module (1) in the axis of symmetry of the reflector (4) is arranged.
  12. Vehicle headlight according to claim 9, characterized in that the vehicle headlight has a shading device (6) for generating the cut-off line of the low beam.
  13. Vehicle headlight according to claim 10 or 11, characterized in that the light-emitting diodes (21) along at least one ring are arranged, whose ring axis parallel to the longitudinal axis (AA) of the carrier (10) or in the longitudinal axis (AA).
  14. Vehicle headlight according to claim 9, characterized in that the at least one light-guiding means is designed as a light-reflecting surface (311).
  15. Vehicle headlight according to claim 9, characterized in that the at least one light-guiding means is designed as a refracting element.
  16. Vehicle headlight according to Claims 13 and 14, characterized in that the light-emitting diodes (21) arranged along the at least one ring are arranged between two light-reflecting surfaces (311, 312) surrounding the carrier (10) in an annular manner.
EP04013157.5A 2003-07-24 2004-06-03 LED module for vehicle headlamps, and vehicle headlamp Active EP1500868B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10333836 2003-07-24
DE10333836A DE10333836A1 (en) 2003-07-24 2003-07-24 Light-emitting diode module for vehicle headlights and vehicle headlights

Publications (3)

Publication Number Publication Date
EP1500868A2 true EP1500868A2 (en) 2005-01-26
EP1500868A3 EP1500868A3 (en) 2013-09-04
EP1500868B1 EP1500868B1 (en) 2018-05-02

Family

ID=33483058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04013157.5A Active EP1500868B1 (en) 2003-07-24 2004-06-03 LED module for vehicle headlamps, and vehicle headlamp

Country Status (5)

Country Link
US (1) US6991354B2 (en)
EP (1) EP1500868B1 (en)
JP (1) JP2005044807A (en)
CA (1) CA2475528A1 (en)
DE (1) DE10333836A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042358B3 (en) * 2005-09-07 2007-03-01 Audi Ag Lighting apparatus e.g. headlight, for use in motor vehicle, has reflectors, which are arranged behind one another, where each reflector is slotted several times so as to accommodate several fins that are swivelably supported
WO2008122924A1 (en) * 2007-04-06 2008-10-16 Koninklijke Philips Electronics N.V. Elongated lamp comprising leds and radially extending lamellae
DE102010002118A1 (en) * 2010-02-18 2011-08-18 Osram Gesellschaft mit beschränkter Haftung, 81543 Light emitting diode lighting device has concave reflector, by which reflector axis is defined, where carrier is arranged on concave side in reflector axis and two light emitting diodes are arranged on carrier
WO2013182973A1 (en) * 2012-06-04 2013-12-12 Koninklijke Philips N.V. Led lamp unit, in particular for automotive lamps

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7618171B2 (en) * 2004-10-21 2009-11-17 Osram Sylvania Inc. Light emitting diode module for automotive headlamp
US20080055065A1 (en) * 2006-08-30 2008-03-06 David Charles Feldmeier Systems, devices, components and methods for controllably configuring the brightness of light emitted by an automotive LED illumination system
US20080055896A1 (en) * 2006-08-30 2008-03-06 David Charles Feldmeier Systems, devices, components and methods for controllably configuring the color of light emitted by an automotive LED illumination system
US7665866B2 (en) * 2007-07-16 2010-02-23 Lumination Llc LED luminaire for generating substantially uniform illumination on a target plane
US20100213809A1 (en) * 2007-09-19 2010-08-26 Osram Gesellschaft Mit Beschraenkter Haftung Headlamp and its use
US20100246203A1 (en) * 2009-03-27 2010-09-30 North American Lighting, Inc. System and method for exterior lighting of vehicles
JP5581089B2 (en) * 2010-03-29 2014-08-27 株式会社小糸製作所 Vehicle headlamp
CZ2016655A3 (en) * 2016-10-19 2018-05-02 Varoc Lighting Systems, s.r.o. A headlight for a vehicle

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US4862329A (en) * 1988-03-11 1989-08-29 Koito Seisakusho Co., Ltd. Vehicular headlamp
US6183100B1 (en) * 1997-10-17 2001-02-06 Truck-Lite Co., Inc. Light emitting diode 360° warning lamp
EP1298383A2 (en) * 2001-09-28 2003-04-02 Osram Sylvania Inc. Replaceable led lamp capsule
EP1371901A2 (en) * 2002-06-10 2003-12-17 Lumileds Lighting US, LLC Lamp with axially mounted led lightsource

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JPH07201210A (en) * 1993-12-29 1995-08-04 Patoraito:Kk Light source structure of signal display lamp
JPH09167508A (en) * 1995-12-15 1997-06-24 Patoraito:Kk Signal informative display light
TW498148B (en) 1999-06-25 2002-08-11 Koninkl Philips Electronics Nv Vehicle headlamp and a vehicle
DE10009782B4 (en) * 2000-03-01 2010-08-12 Automotive Lighting Reutlingen Gmbh Lighting device of a vehicle
US6554441B2 (en) * 2001-08-31 2003-04-29 Aqua Signal Aktiengesellschaft Spezialleuchtenfabrik Lighting installation, in particular as a danger light, and wind rotor installation with lighting installation
US6637921B2 (en) * 2001-09-28 2003-10-28 Osram Sylvania Inc. Replaceable LED bulb with interchangeable lens optic

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4862329A (en) * 1988-03-11 1989-08-29 Koito Seisakusho Co., Ltd. Vehicular headlamp
US6183100B1 (en) * 1997-10-17 2001-02-06 Truck-Lite Co., Inc. Light emitting diode 360° warning lamp
EP1298383A2 (en) * 2001-09-28 2003-04-02 Osram Sylvania Inc. Replaceable led lamp capsule
EP1371901A2 (en) * 2002-06-10 2003-12-17 Lumileds Lighting US, LLC Lamp with axially mounted led lightsource

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042358B3 (en) * 2005-09-07 2007-03-01 Audi Ag Lighting apparatus e.g. headlight, for use in motor vehicle, has reflectors, which are arranged behind one another, where each reflector is slotted several times so as to accommodate several fins that are swivelably supported
WO2008122924A1 (en) * 2007-04-06 2008-10-16 Koninklijke Philips Electronics N.V. Elongated lamp comprising leds and radially extending lamellae
DE102010002118A1 (en) * 2010-02-18 2011-08-18 Osram Gesellschaft mit beschränkter Haftung, 81543 Light emitting diode lighting device has concave reflector, by which reflector axis is defined, where carrier is arranged on concave side in reflector axis and two light emitting diodes are arranged on carrier
WO2013182973A1 (en) * 2012-06-04 2013-12-12 Koninklijke Philips N.V. Led lamp unit, in particular for automotive lamps
US10018310B2 (en) 2012-06-04 2018-07-10 Lumileds Llc LED lamp unit, in particular for automotive lamps
US10415762B2 (en) 2012-06-04 2019-09-17 Lumileds Llc LED lamp unit, in particular for automotive lamps

Also Published As

Publication number Publication date
EP1500868B1 (en) 2018-05-02
CA2475528A1 (en) 2005-01-24
US20050018429A1 (en) 2005-01-27
DE10333836A1 (en) 2005-03-03
EP1500868A3 (en) 2013-09-04
US6991354B2 (en) 2006-01-31
JP2005044807A (en) 2005-02-17

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