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WO2008135889A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

Info

Publication number
WO2008135889A1
WO2008135889A1 PCT/IB2008/051608 IB2008051608W WO2008135889A1 WO 2008135889 A1 WO2008135889 A1 WO 2008135889A1 IB 2008051608 W IB2008051608 W IB 2008051608W WO 2008135889 A1 WO2008135889 A1 WO 2008135889A1
Authority
WO
WIPO (PCT)
Prior art keywords
light sources
illumination device
steering
group
point
Prior art date
Application number
PCT/IB2008/051608
Other languages
English (en)
Inventor
Leendert Van Der Tempel
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2008135889A1 publication Critical patent/WO2008135889A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/304—Lighting for domestic or personal use for pictures

Definitions

  • the present invention relates to an illumination device with at least two light sources.
  • Lamps are used in all kinds of applications for example as down lights or spotlights for accent lighting of merchandises, paintings, displays, decoration etc. There is often a wish to be able to change the direction of the lamps over time for example when an object is moved or replaced by another object for example in a store or in a museum.
  • US 4,025,777 discloses an apparatus for clinical illumination of a operating room with a number of lamps which is equally focused on the affected part of a patient's body, and the horizontal direction on the depth of the light focus from each lamp can be desirably changed by a single manipulation of a mechanism without scattering the light from each lamp.
  • the object of the present invention is to provide less complex illuminating device with a variable lighting direction.
  • an illumination device comprising at least two light sources, which are grouped together into at least one group, wherein each light source in the group is fixed at a constant angle to a steering member, usually called stub axle, which is pivotable around a pivot point, usually called king pin.
  • a track member, usually called track rod is pivotably connected to each steering member in a respective connection point of each steering member, so that in an initial position a line extending through the pivot point and the connection point of one steering member intersects corresponding lines of the other steering members in a common point, wherein said steering members and said track member are movable to a second position, in which said light sources are positioned to illuminate a common area.
  • the pivotable connection between the steering members and the track member ensures a coordinated movement of all the light sources in the group in a mechanically simple way.
  • various lighting patterns can be obtained.
  • the coordinated movement of the light sources can be used for repositioning light sources when required.
  • the device can actually reach the initial position.
  • the important thing is that the angles between the light sources and the steering members, as well as the angles between the steering members themselves, are chosen such that such an initial position exists, at least in theory. Whether or not this position is "imaginary", and impossible to reach in practice, e.g. due to mechanical constraints, is not relevant.
  • the illumination device will still present the desired properties.
  • the simple construction of the arrangement makes it possible to use standard parts, keeping workload and costs as low as possible.
  • the steering of the light sources may be done manually by a handle or automatically.
  • the light sources are arranged in a plane, and are arranged to emit light in a direction parallel to this plane.
  • This arrangement and this way of steering the light sources is a derivation from the Ackermann steering geometry, which was developed in the beginning of the nineteenth century for the car industry. This geometry was intended to turn all four wheels around a common point and solve the problem of wheels on the inside and outside of a turn needing to trace out circles of different radii.
  • the Ackermann geometry ensures that the light sources will point towards a common point or area when the arrangement is moved from its initial position. Further, this common point or area will be located on the same plane as the point where the lines intersect in the initial position.
  • This embodiment of the invention is very advantageous when using the illumination device to illuminate different spots on a plane, such as different spots on a floor or shelf.
  • the pivot points of said light source may be arranged to a support structure.
  • the illumination device may be sold as a
  • the group of light sources may be arranged in a linear array.
  • a linear light source may provide a space efficient device, which still creates at least one illumination area, which takes an approximately round or oval form.
  • a round or oval form is often preferred since the traditional light effect is a bright circle from one individual lamp or a set of bright circles from a few individual lamps.
  • the tack member may be pivotable around an axis. This makes it possible to move the light sources in one direction and thereby change the position of the common illuminated area.
  • the steering members may be pivotable in all directions in the pivot points. This makes it possible to move the light sources in more than one direction, i.e. the movement of the common illumination area gets bidirectional instead of unidirectional.
  • the group of light sources may be arranged in a two dimensional linear array and wherein the connection points and the pivotable points are pivotable around a point. This gives the illumination device more freedom to move and illuminate in several directions. At least one of said pivot points of said group of light sources may be movable in a direction along said line or at least one of said light sources of said group of light sources may be movable in a direction along said line. This way the user may adjust the ellipticity of the illumination area.
  • Fig. Ia shows a side view of an illumination device in a first position according to an embodiment of the invention.
  • Fig. Ib shows a side view of the illumination device in figure Ia in a second position.
  • Fig. 2a shows a perspective view of an illumination device in a first position according to a second embodiment of the invention.
  • Fig. 2b shows a perspective view of an illumination device in figure 2a in a second position.
  • Figure Ia shows an illumination device 1 mounted to a ceiling 12 via a support structure 16; however the illumination device 1 may be mounted directly to the ceiling 12, a wall or to any suitable mounting area.
  • the illumination device 1 shows three light sources 2, in a linear array, directed horizontally. However the illumination device 1 is not limited to this quantity or to be a linear array.
  • the light sources 2, may be arranged in a two dimensional array, which gives the illumination device 1 the possibility to take any kind of form. These light sources 2, which are illuminating a common area represents a group 15 of light sources.
  • the light source 2 may be of various types such as CDM, Halogen, LED, laser or any other type of light source.
  • the light source 2 is a LED lamp, since LEDs are small, of low energy, rapidly decreasing cost and have a long life.
  • the LED can be a LED of any kind for example a semiconductor device made of inorganic material or an organic LED (OLED).
  • the common illumination area may have an approximately round or oval form to create an illumination area, which corresponds to a traditional light effect; i.e. a bright circle from one individual lamp or a set of bright circles from several individual lamps. However, any form is possible.
  • the common illuminating area may be more intensely illuminated than with only one light source 2, or light sources 2, with lower light intensity may be used, and still create a common illumination area, which is as strong as one light source 2, with stronger light intensity.
  • the light sources 2, may be electrically connected to each other in such a way that if one light source 2 malfunctions the remaining light sources 2 will still work.
  • Each light source 2 is fixed arranged to a steering member 5 for example a stub axle.
  • the steering members 5 are rotatable around a pivot in a pivot point 7.
  • the pivot may for example be a king pin, a ball hinge or any other known hinge type, which is fixed to a support structure 16.
  • the pivot points 7 may be arranged directly to the ceiling 12, the wall or any other mounting area.
  • the light sources 2 are connected to each other via the steering members 5 by track member 9.
  • the track member 9 may be any kind of track part known in the art, such as a rod or a cantilever.
  • the track member 9 pivotably connects the steering members 5 in connection points 10.
  • the steering members 5 and the track member 9 are so arranged that there exists an initial position (which may be reachable or not) in which a line 6 extending through the pivot point 7 and the connection point 10 of one steering member 5 intersects corresponding lines 6', 6" of the other steering members 5 within the group 15 of light sources in a common point 8.
  • the light sources 2 are arranged to their steering members 5 so that the direction of light 11 from the light source 2, and the line 6 between the pivot point 7 and the connection points 10 is in a constant angle 4.
  • the angles 4, 4', 4" differ between the different direction of lights 11 and the steering members 5 within the illumination device 1.
  • the angle 4, 4' and 4" may be user/installer adjustable in order to make small adjustments to the illumination device 1.
  • the light sources 2, are arranged as near the pivot points 7 as possible.
  • the pivot points 7 are further away from said common point 8 than said pivotable connection points 10. In some applications, this may provide a more space efficient device. However, it could be the other way around.
  • the pivots in the pivotable connection points 10 may be a hinge around an axis or a ball hinge.
  • the track member is composed of three parts, 9a, 9b, 9c, as shown in figures Ia and Ib.
  • the length of the parts 9a, 9b, 9c may be user/installer adjustable to the focus distance to the floor 13 in order to orient the steering members 5 towards a common point 8 located on the floor 13 (approximately at the same height as the common illuminating area, or slightly higher) or on the wall when the illumination device 1 is mounted on a wall.
  • the length L is adjustable through any kind of fixing arrangement 18 for fixing a three part track member 9a, 9b, 9c to a certain length, it may for example be a screwed connection, or multiple clicking notches.
  • the track member 9 may be labelled with the according focus length of for example 2, 2 1 A, 3, 3 1 A or 4 meter.
  • the illumination device 1 is in a initial central position, i.e. the track member 9 is parallel to the ceiling 12 (mounting area) and the common point 8 of the steering members 5 is lying underneath in a central position of the illumination device 1 and the common illumination area 3 is in the extreme/infinite position.
  • the light sources 2 are arranged to emit light horizontally in the initial position of the illumination device 1 when the illumination device 1 is arranged to the ceiling 12.
  • the light sources 2, and the steering members 5 may be directed to meet in a point somewhere else on the floor 13 or above the floor 13 depending on the outer area the common illumination area has to reach.
  • An operating handle 14 is positioned to the steering member 5 in the middle. However, it is not limited to this position.
  • the operating handle 14 may be an extra handle connected to one of the steering members 5, or one of the steering members 5 may extend over the pivotable connection points 10 and may be used as a handle (as in figure Ia and Ib).
  • the operating handle 14 may be arranged to any track member 9, but preferably it is arranged to the centre steering member 5.
  • the light sources 2 are pivoted around the pivot points 7 by moving the track members 9 and thus steering members 5 from a first position to at least a second position.
  • this is done by moving the handle 14 of the central steering member 5 for example to the right (arrow) or in another direction, so that the common illumination area is moved to a second position 3, which is shown in figure Ib.
  • the illumination device 1 may also be controlled by a remote control, which may be connected to the operating handle, for example by a cord, a crank, a screw or by any other technique known in the art.
  • the remote control may also be connected to one of the hinges or steering members 5 in order to control the illumination device 1 from a distance.
  • a motor 17 may also be connected to control the illumination device 1 automatically.
  • Figure Ib shows the illumination device 1 in a second position.
  • the common illumination area (in fig. Ia) has been moved from its extreme position in the infinity to its new position 3 on the floor 13 and through the arrangement between the light sources 2 the track members 9 are no longer parallel to the ceiling 12. They have pivoted during the movement in the connection points 10.
  • the common illumination area By using ordinary hinges in the linear array between the light sources 2, and the steering members 5 and between the steering members 5 and track member 9 the common illumination area 3, is moved in one array (unidirectional).
  • ball hinges between the light sources 2, and the steering members 5 and ordinary hinge joints between the steering members 5 and track member 9 a bidirectional movement is created.
  • the form of the illumination area 3 may be adjustable by the user, for example the pivot point 7 or light source 2 in the centre may be movable downwards to the floor 13 to increase the ellipticity. This can be done through for example a movable connection member, such for example a screw or slide connection member between the pivot point 7 or the light source 2 and the support structure 16 (not shown).
  • a movable connection member such for example a screw or slide connection member between the pivot point 7 or the light source 2 and the support structure 16 (not shown).
  • the common point 8 of the steering members 5 is arranged so that the resulting illumination from the light sources 5 suits the end user within a certain range.
  • the required angular movement of the handle 14 from the initial position depends on the design and is generally ⁇ 25°.
  • Figure 2a and 2b shows the illumination device 1 as a linear device in two rows. In the first row 19 one light source 2 is arranged and in the second row 20 two light sources 2. They are connected to each other via their steering members 5 to a star-like track member 9a, 9b, 9c. However the track member 9a, 9b, 9c may take any kind of form.
  • Figure 2a shows the illumination device 1 , where the common illumination area is in the infinity and the common point 8 are in a position central of the group 15 of light sources on the floor 13.
  • Figure 2b shows the illumination device in a second position, i.e. the common illumination area has moved from position in the infinity to a second position 3 on the floor 13. This could be done for example through a handle 14 in the middle.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un dispositif d'éclairage (1) comprenant au moins deux sources lumineuses (2), qui sont regroupées en un groupe (15) ou plus. Chaque source lumineuse (2) dans le groupe est fixée selon un angle constant (4, 4', 4') à un élément de direction (5) qui est pivotable autour d'un point pivot (7). Un élément de rail (9) est raccordé à pivotement à chaque élément de direction (5) à un point de raccordement respectif (10) de chaque élément de direction de telle sorte qu'en position initiale, une ligne (6) s'étendant à travers le point pivot (7) et le point de raccordement (10) d'un élément de direction (5) coupe les lignes correspondantes (6', 6') des autres éléments de direction (5) à un point commun (8). Les éléments de direction (5) et ledit élément de rail (9) sont mobiles jusqu'à une seconde position, dans laquelle lesdites sources lumineuses (2) sont positionnées pour éclairer une zone commune (3). Le raccordement pivotable entre les éléments de direction et l'élément de rail assure un mouvement coordonné de toutes les sources lumineuses dans le groupe selon une manière mécaniquement simple.
PCT/IB2008/051608 2007-05-07 2008-04-25 Dispositif d'éclairage WO2008135889A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07107602.0 2007-05-07
EP07107602 2007-05-07

Publications (1)

Publication Number Publication Date
WO2008135889A1 true WO2008135889A1 (fr) 2008-11-13

Family

ID=39689324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/051608 WO2008135889A1 (fr) 2007-05-07 2008-04-25 Dispositif d'éclairage

Country Status (2)

Country Link
TW (1) TW200920993A (fr)
WO (1) WO2008135889A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2483500A (en) * 2010-09-10 2012-03-14 Terence Woodgate Light fixture
WO2013032637A1 (fr) * 2011-08-30 2013-03-07 General Electric Company Module lumineux optiquement réglable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287552A (en) * 1963-11-15 1966-11-22 Leo C Ward Remote controlled lighting system
DE2519426A1 (de) * 1974-12-02 1976-08-12 Yamada Shadowless Lamp Co Beleuchtungsvorrichtung fuer ein krankenhaus
GB2342435A (en) * 1998-09-26 2000-04-12 Richard Knight An angle adjustment device
US6120164A (en) * 1997-11-25 2000-09-19 Luminaria Ltd. Multiple lamp lighting fixture
GB2373569A (en) * 2001-03-22 2002-09-25 Altman Stage Lighting Co Inc Variable beam lamp with LED light source
WO2006060905A1 (fr) * 2004-12-07 2006-06-15 Elumen Lighting Networks Inc. Ensemble de diodes électroluminescentes pour applications d’éclairage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287552A (en) * 1963-11-15 1966-11-22 Leo C Ward Remote controlled lighting system
DE2519426A1 (de) * 1974-12-02 1976-08-12 Yamada Shadowless Lamp Co Beleuchtungsvorrichtung fuer ein krankenhaus
US6120164A (en) * 1997-11-25 2000-09-19 Luminaria Ltd. Multiple lamp lighting fixture
GB2342435A (en) * 1998-09-26 2000-04-12 Richard Knight An angle adjustment device
GB2373569A (en) * 2001-03-22 2002-09-25 Altman Stage Lighting Co Inc Variable beam lamp with LED light source
WO2006060905A1 (fr) * 2004-12-07 2006-06-15 Elumen Lighting Networks Inc. Ensemble de diodes électroluminescentes pour applications d’éclairage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2483500A (en) * 2010-09-10 2012-03-14 Terence Woodgate Light fixture
WO2013032637A1 (fr) * 2011-08-30 2013-03-07 General Electric Company Module lumineux optiquement réglable
RU2639834C2 (ru) * 2011-08-30 2017-12-22 Дженерал Электрик Компани Световой модуль, выполненный с возможностью оптического регулирования

Also Published As

Publication number Publication date
TW200920993A (en) 2009-05-16

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