WO2008142621A1 - Dispositif de projection de lumière comprenant un réseau de del - Google Patents

Dispositif de projection de lumière comprenant un réseau de del Download PDF

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Publication number
WO2008142621A1
WO2008142621A1 PCT/IB2008/051928 IB2008051928W WO2008142621A1 WO 2008142621 A1 WO2008142621 A1 WO 2008142621A1 IB 2008051928 W IB2008051928 W IB 2008051928W WO 2008142621 A1 WO2008142621 A1 WO 2008142621A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light projecting
projecting device
camera
leds
Prior art date
Application number
PCT/IB2008/051928
Other languages
English (en)
Inventor
Wolfgang O. Budde
Volkmar Schulz
Harald J. G. Radermacher
Original Assignee
Philips Intellectual Property & Standards Gmbh
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 Philips Intellectual Property & Standards Gmbh, Koninklijke Philips Electronics N.V. filed Critical Philips Intellectual Property & Standards Gmbh
Publication of WO2008142621A1 publication Critical patent/WO2008142621A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0457—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • 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
    • F21W2131/20—Lighting for medical use
    • F21W2131/205—Lighting for medical use for operating theatres
    • 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
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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]

Definitions

  • a light projecting device comprising an array of LEDs
  • the invention relates to light sources, more precisely to a LED based projection lamp.
  • the JP 2000285709 A shows a LED array which responds to sounds.
  • the LED color corresponds to the frequency or wavelength of an acoustic signal.
  • a known device which is capable of producing a very accurate spatial color distribution, is a high resolution image projector, which might use LCD panels or DLP -techno logy, to provide a huge number of individual light pixels in the range of several hundreds of thousands.
  • a problem for both systems is the efficiency, especially at low light levels, the efficiency of most normal light sources decreases.
  • the color depends on the power level. With the image projector, the color is stable over the power level, but this is achieved by blocking the unwanted light, which decreases efficiency even more, the lower the light level.
  • image projectors usually have a fan, which produces some noise. High intensity is achieved with gas discharge lamps, which have a limited lifetime. Especially for a device, which should provide some background illumination all the time, this is very critical.
  • a light projecting device which comprises a plurality of light emitting diodes (LED) configured in an array; wherein at least the majority of said plurality of LEDs have light emission angles up to 20°, preferably between 3° to 12° and wherein each LED is fixed in the array in such manner that it is able to emit light with different direction of its light beam center in relation to light beam centers of a majority of the other LEDs, according to the independent claim.
  • LED light emitting diodes
  • the present invention describes an LED based atmosphere creation device with interactive user interface. It is intended as a calm light source, which produces static or dynamic background illumination to create a certain mood or atmosphere. LEDs with narrow emission angle are used to gain a spatially separated light effect of each individual LED. The light effects of the LEDs do not have to be round spots or perfect squares. LEDs with especially shaped light distributions can increase the attractiveness of the device. As a benefit, only these LEDs are activated which are used to provide the desired light effect. No energy is wasted. Due to the relatively low number of LEDs, the device has less parameter, hence it is easy to control. This enables the use of a low cost interactive feedback system, with acoustical or optical devices, such as microphones or cameras as described later.
  • the LED based projection device of the invention offers a unique combination of low- level illumination, low-resolution display and interactive user interface.
  • further exemplary embodiments of the light projecting device will be described. However, these embodiments apply also to a light projecting system.
  • a light projecting device comprising a plurality of LEDs configured in an array; wherein at least the majority of said plurality of LEDs have light emission angles up to 20° and wherein each LED is fixed in the array in such manner that it is able to emit light with different direction of its light beam center in relation to light beam centers of a majority of the other LEDs is provided.
  • the said light emission angles may be based on the shape of the LEDs themselves, or alternatively based on LEDs with wider emission angle but associated optical devices such as focus lenses, or an integrally formed plurality of focus lenses which may covers the said array.
  • the invention describes a device, which is located below the known possibilities of a display projector but above the capabilities of a set of lamps. It is intended as a calm light source, which produces some background illumination to create a certain mood or atmosphere. LEDs with narrow emission angles are used, so there is a spatial separation of the light effect of each individual LED. Several different LED colors can be used to have a full color display. Preferably, a combination of red, green and blue LEDs may be used, which might be enhanced by using further LED colors such as warm white, amber, cyan, etc. The distribution of the light effects of the different colors can be homogeneous or inhomogeneous. The number of LEDs determines the resolution.
  • the number of LEDs determines the viewing angle.
  • the light effects of the LEDs do not have to be round spots or perfect squares. LEDs with especially shaped light distributions as square spots with a shadow in the center, rhombical spots or spots with circular light and shadow zones can be used to create certain optical effects.
  • a camera can be used to capture at least a part of a projected scene. Positioning the camera at nearly the same place as the light projecting device allow a good correlation between the captured light effect and the corresponding LEDs, which is responsible for projection in this area. As a result, the complexity of the control system is further reduced.
  • the image processing system should be able to capture the important structures in the target rather than just averaging the color in a certain area to calculate the setting for the LEDs, lighting this area.
  • LED chips with appropriate optic devices such as lenses to produce a small viewing angle and mechanically arranged in an array are used in a preferred embodiment of the present invention.
  • the material of the optic device might be a conventional glass or (molded) plastic lens or might be based on photonic structures.
  • the LEDs are mounted in a way that they emit into different directions.
  • packaged red, green and blue LEDs with viewing angles of 8° or 15° are used in a further embodiment. They are preferably arranged in an x-y array. Depending on the position within the array, the LEDs are aligned into certain direction.
  • the alignment in one direction is achieved by bending the LED wires
  • the alignment in the other direction is realizable by bending the printed circuit board.
  • the light effect of each LED has a certain position on the projection surface.
  • the LEDs from one triplet (red, green and blue) are aligned to the same pixel area in a preferred embodiment. Since there are enough triples, a larger projection area can be covered with individually controllable pixels.
  • the invention could be realized e.g. with 8° LEDs in an 8x8x(RGB) matrix.
  • Driving the LEDs with different currents or different duty cycles in an further embodiment of the present invention allows producing the desired color distribution within the projection area.
  • the light projecting device projects light beam patterns with an overall solid angle covering a rectangular area.
  • the solid angle covering the rectangular area is vertically extended between 30° and 90°, and horizontally extended between 45° and 360°.
  • the light projecting device further comprises a controller to selectively power groups of the plurality of LEDs to provide different light beam patterns.
  • the controller is controllable by an acoustical, optical, remote control and/or processor device.
  • the acoustical device is a microphone.
  • the optical device is a camera.
  • a camera can capture the projected scene to provide a feedback path or as an input for target data or for an interactive user interface as a processor device or a remote control device combining the feedback information as well as the target generation as described above.
  • the light projecting device is able to project predefined scenes of light beam patterns.
  • the light projecting device comprises a storage device for storing data of predefined scenes of light beam patterns.
  • the light projecting device is adapted to illuminate at least a wall or a ceiling of a room.
  • a set of a plurality of light projecting devices is claimed, wherein the light projecting devices are combined such that rectangular area of each light beam patterns is neighboured to or overlapped with light beam patterns of a neighboured light projecting device.
  • the set can be build modular, having segments, which project into a certain solid angle. These segments can be stacked together to cover larger areas.
  • four modules with each 10x5(RGB) LEDs covering 90°x45° can be combined to a 360°x45° module allowing to project a coloured band all the walls of a room.
  • the same four modules could also be aligned to the same 90°x45° region with overlapping pixel areas to increase the brightness of the projected scene.
  • Using a master-slave control concept only one module has to be equipped with a camera provides the user interface, while the other modules extend the projection area, the resolution or the brightness based on the data generated by the master.
  • a light projecting system comprises a light projecting device, a camera, a remote control device and/or a computer device, wherein the camera captures a) the light beam patterns projected by the light projecting device and/or b) other optical contend and transfer image information to the controller of the projection system.
  • This optical loop can be used as a closed loop feedback system or as a user interface or a combination of both.
  • a light projecting system comprises a light projecting device according to claim 1, a camera and a controller device, wherein the camera is adapted to capture images and to transfer image data of said images to the controller device, wherein the controller device is adapted to use said image data to generate control signals and to transfer said control signals to the light projection device, and wherein the light emission of the plurality of light emitting diodes of the light emitting device is controllable by said control signals.
  • an object area of an image captured by the camera overlaps at least partially the area of the light beam patterns projected by the light projecting device.
  • a light projecting method uses a light emitting device according to claim 1 , a camera and a controller device, and comprises capturing an image of an object with the camera, transferring image data of said image to the controller device, generating control signals by the controller device using the transferred image data and controlling the light emission of the light projecting device by said control signals.
  • a light projecting method further comprises modifying the light emission of the light projecting device by manipulating the incident light pattern captured by the camera or based on further data set to the camera.
  • the further data may be sound signas or data delivered from an external source.
  • the light projecting method manipulating of the incident light pattern is based on a user operation, wherein the user operation is preferably moving a visible object trough a space spanned by an aperture angle of an objective of the camera.
  • the object of the present invention can be used as a decorative lighting object, to provide background-illumination and as a kind of creative lamp, where people can determine their own light effect in an easy and interactive way.
  • Equipped with an array of microphones it could also act as an optical feedback based on acoustical information.
  • the device will show a combination of a set of pictures. E.g. it could be used in open-plane offices as a noise indicator.
  • Fig. 1 shows schematically a light projecting device according to the invention.
  • Fig. 2 shows schematically a side view of a light projecting system with an other embodiment of a light projecting device.
  • Fig. 1 shows an exemplary embodiment of a claimed light projecting device 1.
  • the device 1 is depicted in a sectional view and uses a plurality of LEDs 2 that are mounted on a Printed Circuit Board 3 (PCB) in a way that they emit into different directions.
  • the PCB 3 is slightly bended to a non-planar 3D-PCB.
  • every three LEDs 2 with different colors are combined to a group 4 which projects every three LED light beams to one spot 5 or "pixel" on an object 6, precisely a wall.
  • the light beams of the LEDs 2 may have the colors red, green, blue, amber, cyan and white in the shown embodiment.
  • Each illuminated area of the spot 5 forms an overlap section 7 with the illuminated area neighbor spots on the wall.
  • Fig. 2 depicts a schematically side view of a light projecting system 8.
  • the system 8 comprises a light projecting device 1 ', a camera 9 and a controller device 10.
  • the devices and the camera 9 are mounted on a plane PCB 3', and are interconnected to each other.
  • the camera 9 is adapted to capture images 11 and to transfer image data of said images 11 to the controller device 10.
  • the controller device 10 is adapted to use said image data to generate control signals and to transfer the control signals to the light projection device 1 '.
  • the light emission 12 of the plurality of light emitting diodes 2' of the light emitting device 1 ' is controllable by said control signals.
  • every three LEDs 2' with the colors red green and blue are combined to a group 4' which projects every three LED light beams 16 to one spot 5' or "pixel" on the wall 13.
  • the shown system 8 it is easily possible to modify the light emission of the light projecting device 1 ' by manipulating the incident light pattern associated with image 11 captured by the camera 9.
  • One option to modify the light emission is to move a visible object as the hand of a user trough the space 18 spanned by an aperture angle of an objective 17 of the camera 9.
  • a pocket lamp could be used to illuminate section 15 of the wall 3.

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)
  • Projection Apparatus (AREA)

Abstract

Cette invention concerne un dispositif de projection de lumière (1), le dispositif de projection de lumière (1) comprenant plusieurs diodes électroluminescentes (DEL) (12) configurées dans un réseau ; au moins la majorité desdites différentes DEL (12) ayant des angles d'émission de lumière allant jusqu'à 20-, et chaque DEL étant fixée dans le réseau de telle sorte qu'elle est capable d'émettre une lumière avec une direction de son centre de faisceau lumineux différente par rapport aux centres de faisceau lumineux d'une majorité des autres DEL.
PCT/IB2008/051928 2007-05-21 2008-05-16 Dispositif de projection de lumière comprenant un réseau de del WO2008142621A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07108569.0 2007-05-21
EP07108569 2007-05-21

Publications (1)

Publication Number Publication Date
WO2008142621A1 true WO2008142621A1 (fr) 2008-11-27

Family

ID=39673085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/051928 WO2008142621A1 (fr) 2007-05-21 2008-05-16 Dispositif de projection de lumière comprenant un réseau de del

Country Status (2)

Country Link
TW (1) TW200914761A (fr)
WO (1) WO2008142621A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010103477A1 (fr) * 2009-03-13 2010-09-16 Koninklijke Philips Electronics N.V. Système de production de lumière à projection de motif
JP2015097214A (ja) * 2009-07-24 2015-05-21 コーニンクレッカ フィリップス エヌ ヴェ 制御可能な照明システム
RU2565584C2 (ru) * 2009-12-18 2015-10-20 Конинклейке Филипс Электроникс Н.В. Инструментальное средство освещения для создания световых сцен
EP2975908A1 (fr) * 2014-06-18 2016-01-20 Toshiba Lighting & Technology Corporation Dispositif d'éclairage
WO2017049201A1 (fr) * 2015-09-18 2017-03-23 Architected Materials, Inc. Source de lumière inclinée présentant un éclairage uniforme de zone étendue
IT201700106598A1 (it) * 2017-09-22 2019-03-22 Himarc Srl Sistema di illuminazione e metodo di controllo della illuminazione emessa da detto sistema
CN112335341A (zh) * 2018-06-25 2021-02-05 昕诺飞控股有限公司 照明装置和照明系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI422773B (zh) * 2010-07-15 2014-01-11 Dongguan Masstop Liquid Crystal Display Co Ltd 光源模組及應用其之檯燈

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20014114U1 (de) * 2000-08-11 2000-11-16 Berghaus Peter Gmbh Leucht- oder Beleuchtungsvorrichtung mit Fresneloptik
WO2002006723A1 (fr) * 2000-07-14 2002-01-24 Sirona Dental Systems Gmbh Lampe pour traitement dentaire
EP1191277A2 (fr) * 2000-09-26 2002-03-27 Lisa Lux GmbH Dispositif d' éclairage pour meubles réfrigérateurs
US20040120152A1 (en) * 2002-12-11 2004-06-24 Charles Bolta Light emitting diode (L.E.D.) lighting fixtures with emergency back-up and scotopic enhancement
WO2004102064A1 (fr) * 2003-05-15 2004-11-25 Lucea Ag Source lumineuse
WO2006040133A1 (fr) * 2004-10-11 2006-04-20 Dantec Ettemeyer Gmbh Procede d'eclairage
DE102005013155A1 (de) * 2005-03-22 2006-09-28 Rapp, Peter Einstellbarer Abstrahlwinkel einer LED-Lampe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002006723A1 (fr) * 2000-07-14 2002-01-24 Sirona Dental Systems Gmbh Lampe pour traitement dentaire
DE20014114U1 (de) * 2000-08-11 2000-11-16 Berghaus Peter Gmbh Leucht- oder Beleuchtungsvorrichtung mit Fresneloptik
EP1191277A2 (fr) * 2000-09-26 2002-03-27 Lisa Lux GmbH Dispositif d' éclairage pour meubles réfrigérateurs
US20040120152A1 (en) * 2002-12-11 2004-06-24 Charles Bolta Light emitting diode (L.E.D.) lighting fixtures with emergency back-up and scotopic enhancement
WO2004102064A1 (fr) * 2003-05-15 2004-11-25 Lucea Ag Source lumineuse
WO2006040133A1 (fr) * 2004-10-11 2006-04-20 Dantec Ettemeyer Gmbh Procede d'eclairage
DE102005013155A1 (de) * 2005-03-22 2006-09-28 Rapp, Peter Einstellbarer Abstrahlwinkel einer LED-Lampe

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010103477A1 (fr) * 2009-03-13 2010-09-16 Koninklijke Philips Electronics N.V. Système de production de lumière à projection de motif
US9404629B2 (en) 2009-03-13 2016-08-02 Koninklijke Philips N.V. Pattern-projecting light-output system
JP2015097214A (ja) * 2009-07-24 2015-05-21 コーニンクレッカ フィリップス エヌ ヴェ 制御可能な照明システム
US9433051B2 (en) 2009-07-24 2016-08-30 Koninklijke Philips N.V. Controllable lighting system
RU2565584C2 (ru) * 2009-12-18 2015-10-20 Конинклейке Филипс Электроникс Н.В. Инструментальное средство освещения для создания световых сцен
US9468080B2 (en) 2009-12-18 2016-10-11 Koninklijke Philips N.V. Lighting tool for creating light scenes
EP2975908A1 (fr) * 2014-06-18 2016-01-20 Toshiba Lighting & Technology Corporation Dispositif d'éclairage
WO2017049201A1 (fr) * 2015-09-18 2017-03-23 Architected Materials, Inc. Source de lumière inclinée présentant un éclairage uniforme de zone étendue
IT201700106598A1 (it) * 2017-09-22 2019-03-22 Himarc Srl Sistema di illuminazione e metodo di controllo della illuminazione emessa da detto sistema
CN112335341A (zh) * 2018-06-25 2021-02-05 昕诺飞控股有限公司 照明装置和照明系统
CN112335341B (zh) * 2018-06-25 2023-09-29 昕诺飞控股有限公司 照明装置和照明系统

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