WO2005054745A1 - Ensemble de lampe - Google Patents

Ensemble de lampe Download PDF

Info

Publication number
WO2005054745A1
WO2005054745A1 PCT/AU2004/001710 AU2004001710W WO2005054745A1 WO 2005054745 A1 WO2005054745 A1 WO 2005054745A1 AU 2004001710 W AU2004001710 W AU 2004001710W WO 2005054745 A1 WO2005054745 A1 WO 2005054745A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emitting diodes
lamp assembly
assembly according
mounting
Prior art date
Application number
PCT/AU2004/001710
Other languages
English (en)
Inventor
Ely Flaws
Andrew Papax
Original Assignee
Auto Concepts Australia Pty Ltd
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 claimed from AU2003906767A external-priority patent/AU2003906767A0/en
Application filed by Auto Concepts Australia Pty Ltd filed Critical Auto Concepts Australia Pty Ltd
Publication of WO2005054745A1 publication Critical patent/WO2005054745A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/301—Assembling printed circuits with electric components, e.g. with resistor by means of a mounting structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/32—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/50—Light sources with three-dimensionally disposed light-generating elements on planar substrates or supports, but arranged in different planes or with differing orientation, e.g. on plate-shaped supports with steps on which light-generating elements are mounted
    • 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]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10106—Light emitting diode [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/10439—Position of a single component
    • H05K2201/10484—Obliquely mounted
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/10606—Permanent holder for component or auxiliary PCB mounted on a PCB

Definitions

  • the present invention relates to a lamp assembly having a number of diodes arranged to radiate light over a range of different directions.
  • the lamp assembly is a clearance or side light for an automotive vehicle.
  • Lamps or lights having a number of light-emitting diodes are regularly used for example, for clearance or side lights for automotive vehicles or for general illumination requirements. These lamps typically include a series of light-emitting diodes arranged in a line and mounted to a substantially planar base, with radiated light generally being projected strongest in the axial direction of the aligned light-emitting diodes.
  • Such lamps normally also include a lens formed to filter and diffuse the light from the substantially point light sources provided by the light-emitting diodes.
  • these lenses may be formed to provide a more uniform, and thereby aesthetically superior, intensity of light transmitted therethrough, or when used as an illuminating device, they may be formed to provide a more even projection of light onto the surfaces of objects to be illuminated.
  • clearance and side lamps or lights are often viewed by fellow drivers or pedestrians at angles oblique to the direction of travel of the vehicles. These lamps typically have a significantly reduced intensity when viewed at such oblique angles, thereby detracting from their ability to successfully radiate light and signal to observers.
  • the legs of the light-emitting diodes are bent so that the light-emitting diodes are orientated at different angles.
  • the legs of the light-emitting diodes can easily moved or break, especially when the lamp is attached to a moving object such as a vehicle.
  • the light-emitting diodes are arranged on a mounting plate parallel to a base level with the base of each light-emitting diode protruding into a cut-out in the mounting plate to be obliquely inclined to the base level.
  • the substantially planar parallel arrangement of the light-emitting diodes disclosed does not produce a uniform illumination of the casing lens.
  • a base portion having carrier webs that incline circuit boards and light-emitting diodes at an angle is used. This arrangement allows for the light-emitting diodes to be orientated at several different angles but requires separate circuit boards for each angle.
  • Preferred embodiments of the present invention seek to provide a lamp assembly that radiates light over a substantive arc and at least ameliorate the above disadvantages.
  • a lamp assembly including: a base portion having a substantially flat printed circuit board, and a mounting device providing at least three mounting portions; at least three light-emitting diodes connected to the circuit board; and a curved optical lens portion for transmitting light radiated from the light-emitting diodes; wherein the base of each light-emitting diode is flush mounted to a respective surface of a mounting portion such that a first of said light-emitting diodes is orientated at an angle with respect to a second of the light-emitting diodes, and a third of the light-emitting diodes is orientated at an angle with respect to the first light-emitting, and wherein the configuration of the light-emitting diodes within the assembly is such as to distribute the light generally uniformly over the lens.
  • the bases of the light-emitting diodes are flush mounted to the mounting portions of the base portion such that they are orientated, and thereby spread the radiated light, in a range of directions. That is the base of each diode abuts a surface of a mounting portion so that the angle of the mounting portion determines the orientation of the diode. This is useful when a lamp having a number of light-emitting diodes is used as a clearance or side light on a vehicle when the light is often viewed at an angle oblique to the direction of travel, or when a lamp having a number of light-emitting diodes is used to illuminate an area where the increased spread of radiated light provides for illumination of more of the area more uniformly.
  • the legs of the light-emitting diodes extend through the mounting device and are soldered into the printed control board.
  • the mounting device may be integrally formed by moulding for example.
  • the mounting device also support the legs of the diodes to reduce the likelihood of breakage and movement of the light-emitting diodes.
  • the light-emitting diodes are orientated such that the angle formed between a central axis of the first light-emitting diode and a central axis of the second light-emitting diode is substantially 45 degrees, and such that the angle formed between the central axis of the first light- emitting diode and a central axis of the third light-emitting diode is substantially 45 degrees.
  • the at least three the light-emitting diodes are positioned in an arcuate array.
  • the optical lens portion is formed to diffuse the light radiated from the light-emitting diodes and preferably has an arcuate profile.
  • the arcuate profile of the optical lens portion is substantially concentric with the arcuate array of the light-emitting diodes, such that the light-emitting diodes are positioned substantially the same effective distance from the optical lens portion to facilitate the even diffusion of the light. This is often desirable for each diode if the lamp is to be used as either a signalling or as an illuminating device.
  • the optical lens may also be made from an outer lens and one or more intermediate lenses between the outer lens and the light-emitting diodes.
  • the intermediate lens may be arcuate and the outer lens may be flat.
  • the intermediate lens may be moulded with an optical effect, but the outer lens clear with no pattern.
  • the lamp has means for locating the mounting device relative to the printed circuit board to prevent misalignment during manufacture.
  • the mounting device and these portions provide for the quicker and less labour intensive manufacture of the lamps, as opposed to the bending of the legs of the light-emitting diodes that may be required when the light-emitting diodes are attached directly to the printed circuit board with no intermediate mounting surface.
  • slots are provided in the printed circuit board and the mounting device has protruding portions engageable with in the slots to provide the locating means.
  • the mounting portions are integrally formed with the mounting device.
  • the mounting portions are formed from respective mounting pieces assembled together to form the mounting device.
  • the first mounting piece orientates the first light-emitting diode at a first angle
  • the second mounting piece orientates the second light-emitting diode at a second angle
  • the third portion orientates the third light-emitting diode at a third angle.
  • each mounting portion mounts two light-emitting diodes in adjacent relation. This provides both for the case of a failure of one of the two adjacent diodes, and increased intensity of the radiated light during normal use.
  • the light-emitting diodes may be orientated in a range of different planes.
  • the lamps according to the present invention are used as clearance or side lights for example, while it may be sufficient to spread the light-emitting diodes substantially along an arc in the one plane to radiate light, for other applications however, it may be desirable to arrange the light- emitting diodes and radiate light in a substantially greater range of directions.
  • a round dome lamp assembly for illuminating an area may have a number light-emitting diodes arranged such that all the light-emitting diodes except for a centrally located light-emitting diode are orientated in a range of different planes and directions.
  • Figure 1 is a front plan view of a clearance light according to an embodiment of the present invention
  • Figure 2 is a section view of the clearance light of Figure 1 of the cross section A-
  • Figure 3 is a section view of the clearance light of Figure 1 of the cross section B- B; and Figure 4 is a section view of a clearance light according to another embodiment of the present invention.
  • the clearance light 2 includes a base portion 4 having a mounting device 6, a printed circuit board 8 on which the mounting device 6 is mounted, and a clearance light base 10 on which the mounting device 6 and the printed circuit board 8 are mounted, and a curved optical lens portion in the form of a lens 12 for transmitting radiated light.
  • the lens 12 may snap fit to the base portion 4 for example.
  • Three mounting portions in the form of facets 14, 16, 18 are provided in the mounting device 6, a respective pair of light-emitting diodes 20, 22, 24 flush mounted on each respective facet 14, 16, 18 for radiating light. That is the base of each diode 20, 22, 24 abuts the respective facet 14, 16, 18 so that the angle of the facet 14, 16, 18 determines the orientation of the diode 20, 22, 24.
  • While a single light-emitting diode 20, 22, 24 may be mounted at each facet 14, 16, 18, it is preferable that two or more light-emitting diodes 20, 22, 24 are adjacently mounted at each facet 14, 16, 18 to provide for both the case of a failure of one of the diodes 20, 22, 24 if the diodes 20, 22, 24 are mounted with two or more on each facet 14, 16, 18, and to provide for increased intensity of the radiated light during normal use. Further, the number of light-emitting diodes 20, 22, 24 employed may vary considerably, along with the orientations at which they are mounted and the spacing between. These requirements will be governed by factors including the required light intensity, the shape of the lens 12, or even the desired lighting effect.
  • the facets 14, 16, 18 are orientated such that a first pair of the light-emitting diodes 22 are orientated at an angle as indicated by the reference numeral 26 with respect to a second pair of the light-emitting diodes 20, and a third pair of the light-emitting diodes 24 are orientated at an angle as indicated by the reference numeral 28 with respect to the first pair of light-emitting diodes 22.
  • the light-emitting diodes 20, 22, 24 of the clearance light 2 are orientated such that the angle 26 formed between a central axis 30 of the first pair of light-emitting diodes 22 and a central axis 32 of the second pair of light-emitting diodes 20 is substantially 45 degrees, and such that the angle 28 formed between the central axis 30 of the first pair of light-emitting diodes 22 and a central axis 34 of the third pair of light- emitting diodes 24 is substantially 45 degrees. It will be appreciated that these angles are provided as an example only, and as such may be suitably varied depending on requirements.
  • the configuration of the light-emitting diodes 20, 22, 24 of the clearance light 2 when flush mounted on the suitably orientated facets 14, 16, 18 of the mounting device 6 within the assembly is such as to distribute the light generally uniformly over the lens.
  • the three pairs of light-emitting diodes 20, 22, 24 are mounted on the mounting device 6 in an arcuate anay as indicated by the reference numeral 36, such that the light-emitting diodes 20, 22, 24 are all substantially the same effective distance from the curved lens, as indicated by reference numerals 38, 40, 42 respectively.
  • the lens 12 of the clearance light 2 which is formed to diffuse the light radiated from the light-emitting diodes 20, 22, 24 such that the radiated light is spread out making it more visible in more directions as rather than being sharp dots as naked light-emitting diodes 20, 22, 24 otherwise would be, has an arcuate profile that is substantially concentric with the arc 36 on which the light-emitting diodes 20, 22, 24 are ananged, such that the light-emitting diodes 20, 22, 24 are positioned at a substantially common distance from the lens 12 to facilitate the even diffusion of the light.
  • the light-emitting diodes 20, 22, 24 may be orientated in a range of different planes such that all the light-emitting diodes except for a centrally located light-emitting diode are orientated in a range of different planes and directions.
  • the clearance light 2 includes only one lens 12, it will be appreciated that there may be one or more intermediate lenses provided before the outer lens, with the same principles applying.
  • the outer lens may be flat, but an intermediate lens may be curved, or in an alternative, the intermediate lens may be moulded with an optical effect, but the outer lens clear with no pattern.
  • the legs 44, 46 of the light-emitting diodes 20, 22, 24 extend through the mounting device 6 and are soldered into the printed circuit board 8 that controls the operation of the light- emitting diodes 20, 22, 24, as indicated by reference numeral 45.
  • the mounting device 6 and printed circuit board 8 are held in the clearance light base 10 with an epoxy, although it will appreciated that any other means of fixing the operably connected mounting device 6 and printed circuit board 8 to the clearance light base 10 could be employed, such as screw fasteners for example (not shown).
  • An electric current passing through electric wire 46A powers the light emitting diodes 20, 22, 24.
  • the electrical wire 46A insulated by a protective sheath 47 that extends through a wire receiving portion 47A in the clearance light base 10.
  • the clearance light base 10 may be fixed for example, to a vehicle by any suitable method, such as the fastening screws through apertures 47B shown in Figure 2.
  • the mounting device 6 may be formed in an alternative way, by machining for example, the mounting device 6 of the clearance light 2 is integrally formed by moulding, with the shape and size determined by the desired distance from the lens 12 and angles at which the light-emitting diodes 20, 22, 24 are mounted, and the intensity of light required.
  • Means for locating the mounting device relative to the printed circuit board to prevent misalignment during manufacture are provided in the form of protruding portions 48 extending from the mounting device 6 and corresponding slots or receiving portions (not shown) in the printed circuit board 8 for receiving the protruding portions 48 prevent misalignment of the mounting device 6 and light-emitting diodes 20, 22, 24 with respect to the printed circuit board 8 during manufacture.
  • FIG 4 shows an alternative construction of the mounting device 6 as shown in Figure 2.
  • the mounting device is formed by three mounting pieces 60, 62 and 64 which are assembled together to form the mounting device 6.
  • the first mounting piece 62 orientates a first light-emitting diode 22 at an angle with respect to a second light-emitting diode 20 mounted on a second mounting piece 60
  • a third light-emitting diode 24 mounted on a third mounting piece 64 is orientated at an angle with respect to the first light-emitting diode 22.

Landscapes

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

Abstract

L'invention concerne un ensemble de lampe (2) comprenant une partie de base (4) présentant une carte de circuits imprimés sensiblement plate (8) et un dispositif de montage (6) possédant au moins trois parties de montage (14, 16, 18), au moins trois diodes électroluminescentes (20, 22, 24) connectées à la carte de circuits (8) et une partie de lentille optique incurvée (12) permettant d'émettre un rayonnement rayonné par les diodes électroluminescentes. La base de chaque diode électroluminescente est encastrée dans une surface respective d'une partie de montage (14, 16, 18), de manière qu'une première diode électroluminescente (22) soit orientée à un angle défini (26) par rapport à une deuxième diode électroluminescente (20) et qu'une troisième diode électroluminescente (24) soit orientée à un angle défini (28) par rapport à la première diode électroluminescente. La conception des diodes électroluminescentes (20, 22, 24) dans l'ensemble est telle qu'elle permet de distribuer le rayonnement, de manière générale, uniformément sur la lentille (12).
PCT/AU2004/001710 2003-12-05 2004-12-03 Ensemble de lampe WO2005054745A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2003906767 2003-12-05
AU2003906767A AU2003906767A0 (en) 2003-12-05 Vehicle Lamp
AU2004901134A AU2004901134A0 (en) 2004-03-04 Vehicle lamp
AU2004901134 2004-03-04

Publications (1)

Publication Number Publication Date
WO2005054745A1 true WO2005054745A1 (fr) 2005-06-16

Family

ID=34654579

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2004/001710 WO2005054745A1 (fr) 2003-12-05 2004-12-03 Ensemble de lampe

Country Status (1)

Country Link
WO (1) WO2005054745A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010122762A1 (fr) 2009-04-22 2010-10-28 Xiroku, Inc. Appareil de détection de position optique
GB2473189A (en) * 2009-09-02 2011-03-09 Bca Leisure Ltd A gutter with lighting
DE102010019456A1 (de) * 2010-05-05 2011-11-10 Armonies Elektronik Gmbh Trägerprofil und Abdeckungsprofil für Beleuchtungen mit mehreren in Reihe angeordneter Lichtquellen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101326A (en) * 1990-09-27 1992-03-31 The Grote Manufacturing Co. Lamp assembly for motor vehicle
JP2000100219A (ja) * 1998-09-21 2000-04-07 Ichikoh Ind Ltd Ｌｅｄを光源とする車両用灯具及びその製造方法
AU4261100A (en) * 1999-07-15 2001-01-18 Hella Asia Pacific Pty Ltd Light-emitting diode arrangement
US6227679B1 (en) * 1999-09-16 2001-05-08 Mule Lighting Inc Led light bulb
US6244728B1 (en) * 1999-12-13 2001-06-12 The Boeing Company Light emitting diode assembly for use as an aircraft position light
WO2002016826A1 (fr) * 2000-08-24 2002-02-28 Simon Grant Rozenberg Ameliorations apportees a des lampes, des luminaires et des systemes d'eclairage
US6578979B2 (en) * 2000-09-26 2003-06-17 Lisa Lux Gmbh Illumination body for refrigeration devices
US20040008519A1 (en) * 2002-07-11 2004-01-15 Shinichi Todaka Lighting device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101326A (en) * 1990-09-27 1992-03-31 The Grote Manufacturing Co. Lamp assembly for motor vehicle
JP2000100219A (ja) * 1998-09-21 2000-04-07 Ichikoh Ind Ltd Ｌｅｄを光源とする車両用灯具及びその製造方法
AU4261100A (en) * 1999-07-15 2001-01-18 Hella Asia Pacific Pty Ltd Light-emitting diode arrangement
US6227679B1 (en) * 1999-09-16 2001-05-08 Mule Lighting Inc Led light bulb
US6244728B1 (en) * 1999-12-13 2001-06-12 The Boeing Company Light emitting diode assembly for use as an aircraft position light
WO2002016826A1 (fr) * 2000-08-24 2002-02-28 Simon Grant Rozenberg Ameliorations apportees a des lampes, des luminaires et des systemes d'eclairage
US6578979B2 (en) * 2000-09-26 2003-06-17 Lisa Lux Gmbh Illumination body for refrigeration devices
US20040008519A1 (en) * 2002-07-11 2004-01-15 Shinichi Todaka Lighting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 200, no. 007 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010122762A1 (fr) 2009-04-22 2010-10-28 Xiroku, Inc. Appareil de détection de position optique
EP2422269A1 (fr) * 2009-04-22 2012-02-29 Xiroku, Inc. Appareil de détection de position optique
CN102422251A (zh) * 2009-04-22 2012-04-18 株式会社施乐库 光学位置检测设备
EP2422269A4 (fr) * 2009-04-22 2013-09-18 Xiroku Inc Appareil de détection de position optique
GB2473189A (en) * 2009-09-02 2011-03-09 Bca Leisure Ltd A gutter with lighting
DE102010019456A1 (de) * 2010-05-05 2011-11-10 Armonies Elektronik Gmbh Trägerprofil und Abdeckungsprofil für Beleuchtungen mit mehreren in Reihe angeordneter Lichtquellen

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