EP2748515A1 - Lichtquellenvorrichtung - Google Patents
LichtquellenvorrichtungInfo
- Publication number
- EP2748515A1 EP2748515A1 EP12756144.7A EP12756144A EP2748515A1 EP 2748515 A1 EP2748515 A1 EP 2748515A1 EP 12756144 A EP12756144 A EP 12756144A EP 2748515 A1 EP2748515 A1 EP 2748515A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light source
- source device
- partial surface
- heat sink
- partial
- 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
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
- F21V15/00—Protecting lighting devices from damage
- F21V15/04—Resilient mountings, e.g. shock absorbers
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/004—Lighting devices intended to be free-standing with a lamp housing in direct contact with the floor or ground
-
- 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
- F21W2131/10—Outdoor lighting
- F21W2131/1005—Outdoor lighting of working places, building sites or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the present invention relates to a Lichtierinvor ⁇ direction with at least one LED with a Lichtab ⁇ beam side and the Lichtabstrahlseite opposite rear, wherein the at least one LED is arranged on a circuit board, wherein defined by the board ei ⁇ ne arrangement level of at least one LED is, at least one main heat sink, which is coupled to the back of the at least one LED, wherein the main heat sink has a lateral surface.
- a light source device with at least ei ⁇ ner LED with a Lichtabstrahlseite and one of the light ⁇ emitting side opposite back, wherein the at least one LED is arranged on a circuit board, at least one main heat sink, which is coupled to the back of at least one LED, and a dri ⁇ bervorides for operating the at least one LED, wherein the driving device comprises at least one port for coupling to a voltage supply.
- a construction site luminaire 30 known from the prior art is shown in FIG. This includes a covered by a glass disc 32 ⁇ array 34 having a plurality of LEDs.
- An impact shield 36 surrounds the combination of LED array 34 and glass pane 32.
- a Unillustrated main heat sink for cooling the LEDs of the LED array 34 is provided at the back.
- a swivel arm 38 is provided at the back, by means of which the construction site lamp 30 can be set up in the operating state for illuminating an object with a fixed emission direction.
- a disadvantage of the known from the prior art construction light is that only LEDs with a ⁇ be marginalized power can be used, otherwise a permissible operating temperature is exceeded, which would lead to damage to the building site lamp.
- a wide ⁇ rer disadvantage is that in the known construction ⁇ provide light only two viewing angle can be realized even in capped construction site lamp 30 30, by means of the folded-down pivoting arm 38 and on the other in a lay-flat on a surface construction light, particularly when using the swing arm The arrangement is comparatively unstable to the influence of wind or vibrations, as they are usually found on construction sites.
- the object of the present invention in a first aspect is to further develop a generic light ⁇ source device of the first type such that different radiation directions possible in a simple manner with high stability ⁇ the.
- the object according to this first aspect is achieved by a light source device having the features of patent claim 1.
- the present invention is based on the finding that different emission directions can be set particularly stable if the main heat sink itself is used for this purpose.
- the lateral surface of the main cooling body has at least a first, a second and a third part surface, wherein the first partial area of the Minim ⁇ least parallel to the plane of arrangement of an LED, wherein the second surface portion includes egg ⁇ NEN first angle to the first area and the third Partial surface includes a second angle to the first partial surface, wherein the two angles are different and the second partial surface as a first standing surface and the third partial surface is formed as a second Stand ⁇ surface.
- the light source device for. B.
- the main heat sink is accordingly stable from ⁇ formed that the light source device can be placed on 29ie ⁇ dene partial surfaces of the lateral surface and thereby can shine in different solid angles. In this way can be avoided a folding element, as known from the prior art, in which there is a risk that it will collapse by wind influence or Erschüt ⁇ Chippings or falling over the building site light can not prevent.
- the light source device is so robust that it can easily stand up can be used a construction site and also offers a op ⁇ timale illumination of the workplace because of the special design of the main heat sink with footprints different light radiation re- are alisierbar.
- a preferred embodiment further includes the outer surface of a fourth surface portion, which includes a drit ⁇ th angle to the first surface portion and is formed as the third supporting surface.
- the first, the second and the third angle are different from each other, so that at least three different radiation directions can be realized.
- the lateral surface further comprises a fifth partial surface which encloses a fourth angle to the first partial surface and is formed as a fourth base surface. In this way, even four different positioning options and thus emission directions can be realized.
- the lateral surface of a white ⁇ tere part surface which is parallel to the first surface portion, wherein the second, the third and the fourth sub-area or the second, the third, the fourth and the fifth surface portion between the first and the wide ⁇ ren Partial surface are arranged.
- the main heat sink thus has the shape of an irregularly shaped truncated pyramid.
- a radiation direction can be realized vertically upwards.
- the driver device for operating the at least one LED, wherein the driver device has at least one connection for coupling to a power supply.
- the main heat sink on a plurality of fins, which are arranged projecting from the first part surface ⁇ .
- the respective partial surfaces of the main cooling body are thereby realized.
- the fins are designed so stable that the light source device can stand well on the formed as a footprint partial surfaces and also does not cause shocks or a nudge immediately to the fall of the light source device.
- the fins extend radially. In this way, it is ensured that, irrespective of on which part of the surface ⁇ the light source device is stored, a chimney is formed, can be radiated by the heated air due to convection.
- such a configuration of the fins of the main heat sink allows a flow of the heated air from the bottom up regardless of the position of the light source device. This can be independent of the location of the construction site light satisfactory cooling results erzie ⁇ len.
- the main heat sink has a recess, wherein the fins extend radially to this recess.
- the recess ensures that through the radially inwardly extending fins there is no bottleneck that would prevent convection.
- the recess is arranged where the second, the third and the fourth or the second, the third, the fourth and the fifth partial surface would converge without the recess. In this way, the chimney effect is enabled in all layers of the light source device.
- each fin has an outer end and an inner end oriented towards the center of the main cooling body, wherein the inner ends of adjacent fins have a predeterminable minimum distance.
- the stack effect can be in a predetermined amount safely stel ⁇ len.
- the predetermined minimum distance by Varia ⁇ tion of the length of the individual fins is set. In other words, therefore, the individual fins have different lengths in their extension to the recess.
- the connection for coupling with the at least one power supply is designed to be pivotable.
- the light source device can be coupled to a power supply independently of its instantaneous position in such a way that the connection is exposed to the least possible bending or shearing forces.
- the object is to develop a light source device of the aforementioned second type such that a higher emission power is made possible.
- This object is achieved by a Lichtierinvorrich ⁇ processing with at least one LED having a Lichtab ⁇ radiating side and a radiant light over ⁇ lying back side, which is disposed on a circuit board, at least one LED, at least one main cooling ⁇ body with the back of at least a LED is coupled ge ⁇ and a drive device for operating the at least one LED, wherein the driving device comprises at least one port for coupling to a voltage supply.
- the light source device further comprises a front heat sink, which is thermally coupled to the main heat sink.
- the present invention according to the second aspect is based on the finding that a higher Abstrahlleis ⁇ tion is made possible when measures are taken to improve the cooling capacity, that is, the dissipation of heat generated by power loss.
- the light source device further comprises a front heat sink, which is thermally coupled to the main heat sink.
- the additional use of a front heat sink the effective cooling capacity can be significantly increased, so that more powerful LEDs or larger numbers of LEDs can be used. This results in a significant increase in the light emission.
- the front heat sink has a non-coupled to the main heat sink radiating surface, wherein the front cooling body is arranged such that the beam is from ⁇ surface oriented toward the light emission side of the at least one LED.
- Non-coupled to the main heat sink in this context means that the front heat sink ei ⁇ ne its radiating surface having opposite rear side which is thermally coupled to the main heat sink In this way, the entire upper ⁇ surface of the light source device for cooling purposes can be almost used, whereby -.
- the circuit board is preferably coupled via a thermal interface material with the main ⁇ heat sink, wherein the thermal interface material is particularly designed to be elastically a be ⁇ Sonders preferred.
- Thermal interface material is available under the name T-flex from the company Laird. This coupling can compensate for unevenness of the heat sinks, which means that their surfaces do not need to be milled, so that more cost-effective heat sinks are used Accordingly, it may be provided that the front cooling body is connected to the main cooling body via a thermal interface material. is coupled by, wherein also here preferably the thermal ⁇ cal interface material is elastic.
- the substrate is connected to the main heat sink and achieved a seal against moisture. This reduces the risk of moisture ingress between heatsinks without the need for additional measures.
- the invention can also be implemented with a variety of boards.
- the main heat sink on a circumferential shock ⁇ protection device in particular made of plastic, on.
- the light source device is reliably protected against damage by an uneven ground and the like, since the impact protection device ensures a certain distance.
- the substrate on which the light source device stands is protected against damage due to excessive temperatures.
- the circumferential Stoßstoffvorrich ⁇ tion may also be present in the present invention according to the first aspect.
- the impact protection device comprises a first, main and the front heat sink contacting component and a second,structureoberflä ⁇ surface of the impact protection device forming component on ⁇ has, wherein the first component of a more elastic material than the second component , In this way, manufacturing tolerances can be compensated. In addition, the fixation between the heat sinks can be ensured thereby.
- a handle is formed in the impact protection device, which serves for easy transport of the light source device.
- the handle allows positioning of the light source device, without the possibly heated heat sinks would have to be touched.
- the handle is not centrally located due to the a-symmetrical weight distribution as a result of the different angles of incidence of the abovementioned partial surfaces.
- the handle can also represent an advantageous embodiment according to the first aspect of the invention.
- At least one coupling device for mechanical and / or electrical coupling of a plurality of light source devices can be arranged in the impact protection device.
- Such coupling devices can be used to couple any number of light source devices to achieve a desired brightness. Only one of these coupled light source devices needs to be coupled to a power supply.
- the driver device is mounted on the side of the main heat sink, which is not coupled to the front heat sink.
- the driving apparatus is largely thermally decoupled from the LEDs, resulting in an increase in the life of the components of the driving device, and thus the light source device ⁇ .
- the light source device may further comprise a channel in which connection lines connecting the circuit board to the driver device are arranged. It can be provided that in the channel at least one gradation is formed such that thereby the distance between the current-carrying areas of the board and the main heat sink is increased. In this way, a voltage flashover between current-carrying areas of the board and the main cooling body can be reliably prevented, which results in increased safety for a user of the light source device.
- a recess in the main heat sink can be provided in the area of the channel, which recess is designed in such a way that the distance between current-carrying areas of the circuit board and the main heat sink is thereby increased.
- the light source device may further comprise a moisture-permeable membrane, in particular a Goretex membrane, which is arranged such that moisture present in cavities of the light source device can escape from the light source device. In this way, damage to the light source device by water ingress is reliably avoided.
- a moisture-permeable membrane in particular a Goretex membrane
- a sealing ring and a transparent pane arranged above the at least one LED can be provided, wherein the sealing ring is arranged between the pane and the front cooling body. This causes the disc, the front heat sink, the thermal interface material and the main heat sink to the fixed. Moreover, the entry of moisture is prevented.
- Figure 1 is a schematic representation of a known from the prior art light source device with an LED array.
- FIG. 2 shows different schematic representations of a first embodiment of a light source device according to the invention
- FIG. 3 shows further views of the exemplary embodiment illustrated in FIG. 2 of a light source device according to the invention
- FIG. 4 is an exploded view of the light source device shown in FIG. 2 and FIG. 3; FIG.
- FIG. 5 shows various views of a second embodiment of an inventive Lichtquel ⁇ lenvorraum
- FIG. 6 various views of a third embodiment of an inventive Lichtquel ⁇ lenvorraum; and 7 shows various representations of the main heat sink used in the embodiment of a light source device according to the invention shown in FIG.
- FIGS. 2 to 4 show various schematic representations of a first exemplary embodiment of a light source device according to the invention.
- a main heat sink 2 Behind an array with a plurality of LEDs 1, a main heat sink 2 is arranged.
- a front heat sink is designated 3.
- the main heat sink 2 has a Mantelflä ⁇ che, which corresponds to an irregular truncated pyramid.
- Its lateral surface has a plurality of partial surfaces 25a to 25f, wherein the first partial surface 25a is oriented parallel to the arrangement plane of the LEDs 1.
- the second partial area 25b includes an angle of 85 ° to the first partial area 25a, the third sub-surface 25c a Win ⁇ angle of 70 °, the fourth surface portion 25d at an angle of 50 °, the fifth surface portion 25e at an angle of 30 °.
- the sixth partial surface 25f runs parallel to the first partial surface 25a.
- the specified angles are only ⁇ play and can vary depending on the application. Due to the different angles, the light source device in different positions relative to a Pad are positioned so that in this way the emission direction of the LEDs 1 is also varied.
- a driver device 5 In order to thermally separate a driver device 5 from the LEDs 1, it is located on the side of the main heat sink 2 facing away from the LEDs.
- the main heat sink 2 has a plurality of fins 6, whereby the contact surfaces with the housing 7, 8 of the driver device 5 and so that the heat transfer is kept low.
- the housing 7, 8 of the driver device 5 also has space for arranging the connection to the power supply (not shown) on the rear side. This is preferably pivotally arranged to the difference ⁇ union layers in which a light source device according to the invention to a backing can be arranged to take into account.
- the housing 7, 8 of the driver device 5 and a circumferential impact protection 9 prevent the main heat sink 2 can come into direct contact with the pad. This allows air to flow into the fins 6 and prevents damage to the main heat sink 2.
- a handle 10, part of the surge protection 9 is and is not located centrally on ⁇ due to the asymmetric weight distribution, enables positioning of the light source device ⁇ without the heated cooling bodies 2, 3 to touch.
- the light source device can be constructed according to various security classes. Thus, a touchable supply ⁇ voltage can already be provided by the driver device 5. But it can also the LED substrate, that is, the board 11, so isolated that the relevant rules are met. This can be done for example by means of ceramic or even using FR4 boards. Instead of a circuit board 11 shown in the embodiment, a plurality of individual boards can be used.
- a double insulation is ensured by using a FR4 board and an underlying thermal interface material (TIM) 12.
- the LEDs in this case single LEDs are used, but also multi-chip LEDs are used, are applied to the substrate 11, which in turn is connected via the TIM 12 to the main heat sink 2.
- the waste heat of the LEDs 1 is derived in this way in the main heat sink 2.
- the front heat sink 3 is also thermally connected via the TIM 12.
- the fixation of the components to one another is fulfilled with respect to the inner elements of the light source device by a sealing ring 15, which is arranged between the front cooling body 3 and a transparent pane 14.
- the sealing ring 15 fixes the disc 14, a spacer 16 and the board, that is, the substrate 11, between the heat sinks 2, 3.
- the sealing ring 15 also prevents the entry of moisture at this point.
- the spacer 16 positions the disc 14 and prevents contact with the front heat sink 3, which is particularly important when using glass for the disc 14. Between the disc 14 and the spacer 16, further elements with optical properties, such as lenses, reflectors and the like may be arranged. Connecting lines between the driver device 5 and the substrate 11 with the LEDs 1 extend in a plastic channel 17. This channel 17 protrudes through the main ⁇ heat sink 2, the TIM 12 and the substrate 11 in a cavity below the spacer 16. Any the front heat sink 3 on protrude the spacer 16, the spacer 16 would ensure insulation to the heat sink 3. In this cavity, the lines are connected to the substrate 11.
- 17 steps 18 can be introduced into the channel, which ensure these distances.
- a recess 19 may be provided in the heat sink 2 to ensure these distances.
- a further sealing ring can be applied to the channel 17.
- a moisture permeable membrane in particular a Goretex membrane
- Fig. 5 shows a second embodiment of an OF INVENTION ⁇ to the invention the light source device.
- the spacer 16 and the shock protection 9 is united in one part.
- the space for the connection of the LEDs 1 is located under a cover 20, which is also part of the element 9, 16.
- the terminal 21 to a power supply is made pivotable, whereby the light source device can also be placed on the back.
- lateral coupling devices 22 may be provided, which allow a coupling of multiple light source devices with each other.
- FIG. 6 shows a third exemplary embodiment of a light source device according to the invention, in which the main heat sink 2, see FIG. is executed in part.
- the fins 6 extend radially to a recess 23.
- the recess 23 is arranged where these partial surfaces 25b, 25c, 25d, 25e would converge without recess.
- Each fin 6 has an outer and an the center of the main cooling body 2 orien ⁇ patented inner end, said inner ends Benach ⁇ barter fins 6 have a predetermined minimum distance. This predefinable minimum distance is set by varying the length of the respective fins 6. In this embodiment, regardless of the position of the light source device a chimney effect is achieved, whereby a particularly high cooling capacity is made possible in all layers of the light source device.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011081672A DE102011081672A1 (de) | 2011-08-26 | 2011-08-26 | Lichtquellenvorrichtung |
| PCT/EP2012/066476 WO2013030099A1 (de) | 2011-08-26 | 2012-08-24 | Lichtquellenvorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2748515A1 true EP2748515A1 (de) | 2014-07-02 |
| EP2748515B1 EP2748515B1 (de) | 2016-09-28 |
Family
ID=46801465
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12756145.4A Not-in-force EP2748527B1 (de) | 2011-08-26 | 2012-08-24 | Lichtquellenvorrichtung |
| EP12756144.7A Not-in-force EP2748515B1 (de) | 2011-08-26 | 2012-08-24 | Lichtquellenvorrichtung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12756145.4A Not-in-force EP2748527B1 (de) | 2011-08-26 | 2012-08-24 | Lichtquellenvorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (2) | EP2748527B1 (de) |
| DE (1) | DE102011081672A1 (de) |
| WO (2) | WO2013030104A2 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202013007270U1 (de) | 2013-08-10 | 2014-11-13 | Robert Diebolder | Arbeitsleuchte mit verschiedenen Abstrahlwinkeln |
| TWM553786U (zh) | 2015-12-10 | 2018-01-01 | 米沃奇電子工具公司 | 泛光燈具 |
| CN117091106B (zh) * | 2023-09-04 | 2024-04-09 | 大连宗益科技发展有限公司 | 一种机场跑道助航灯 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6629767B2 (en) * | 2001-08-24 | 2003-10-07 | Eveready Battery Company, Inc. | Lighting device |
| TWM321582U (en) * | 2007-03-01 | 2007-11-01 | Edison Opto Corp | Heat sink structure for light source device |
| US7744250B2 (en) * | 2007-07-12 | 2010-06-29 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | LED lamp with a heat dissipation device |
| DE202008003496U1 (de) * | 2008-03-10 | 2008-05-08 | Aeon Lighting Technology Inc., Chung-Ho City | LED-Straßenlampe |
| CN102089567B (zh) * | 2008-07-07 | 2014-02-26 | 松下电器产业株式会社 | 灯泡形照明用光源 |
| DE202009004191U1 (de) * | 2009-03-25 | 2009-06-04 | Pyroswift Holding Co., Ltd., Wanchai | LED-Beleuchtungsvorrichtung |
| CA2768777C (en) * | 2009-07-21 | 2017-11-28 | Cooper Technologies Company | Interfacing a light emitting diode (led) module to a heat sink assembly, a light reflector and electrical circuits |
| CA2684301A1 (en) * | 2009-11-03 | 2011-05-03 | Wayne Ernest Conrad | Led light bulb |
| US8220961B2 (en) * | 2009-11-10 | 2012-07-17 | General Electric Company | LED light fixture |
| DE102010001046A1 (de) * | 2010-01-20 | 2011-07-21 | Osram Gesellschaft mit beschränkter Haftung, 81543 | Leuchtvorrichtung |
| DE102010001047A1 (de) * | 2010-01-20 | 2011-07-21 | Osram Gesellschaft mit beschränkter Haftung, 81543 | Leuchtvorrichtung |
| US20110182053A1 (en) * | 2010-01-27 | 2011-07-28 | Mujibun Nisa Khan | Omni-directional and multi-directional light-emitting diode (LED) lamp designs with multiple discrete LEDs on multiple facets |
-
2011
- 2011-08-26 DE DE102011081672A patent/DE102011081672A1/de not_active Withdrawn
-
2012
- 2012-08-24 EP EP12756145.4A patent/EP2748527B1/de not_active Not-in-force
- 2012-08-24 EP EP12756144.7A patent/EP2748515B1/de not_active Not-in-force
- 2012-08-24 WO PCT/EP2012/066488 patent/WO2013030104A2/de not_active Ceased
- 2012-08-24 WO PCT/EP2012/066476 patent/WO2013030099A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013030099A1 (de) | 2013-03-07 |
| EP2748515B1 (de) | 2016-09-28 |
| WO2013030104A3 (de) | 2013-04-25 |
| WO2013030104A2 (de) | 2013-03-07 |
| EP2748527B1 (de) | 2015-11-25 |
| EP2748527A2 (de) | 2014-07-02 |
| DE102011081672A1 (de) | 2013-02-28 |
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Legal Events
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