EP2193308A1 - Leuchtvorrichtung mit lichtpuffer - Google Patents
Leuchtvorrichtung mit lichtpufferInfo
- Publication number
- EP2193308A1 EP2193308A1 EP08802568A EP08802568A EP2193308A1 EP 2193308 A1 EP2193308 A1 EP 2193308A1 EP 08802568 A EP08802568 A EP 08802568A EP 08802568 A EP08802568 A EP 08802568A EP 2193308 A1 EP2193308 A1 EP 2193308A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- lighting device
- buffer
- relax
- light source
- 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.)
- Withdrawn
Links
- 239000000872 buffer Substances 0.000 title claims abstract description 76
- 239000000463 material Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 238000009499 grossing Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 206010016352 Feeling of relaxation Diseases 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 8
- 239000000758 substrate Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052605 nesosilicate Inorganic materials 0.000 description 1
- 150000004762 orthosilicates Chemical class 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 1
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/08—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material comprising photoluminescent substances
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
- F21V3/12—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings the coatings comprising photoluminescent substances
-
- 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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/38—Combination of two or more photoluminescent elements of different materials
-
- 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
- rectifiers with smoothing capacitors are typically required to suppress flicker.
- An additional electronics which is associated with additional manufacturing costs. In addition, this increases the probability of failure of the circuit. In order to effectively avoid the current / voltage fluctuation, larger capacitors that take up a lot of space usually have to be taken.
- PWM pulse width modulation
- the lighting device has at least one suitable for operation with alternating current and / or pulse width modulation light source, in particular light emitting diode.
- the lighting device further comprises at least one light buffer for absorbing light energy from the light source and time-delayed E mission of stored light energy.
- the light buffer serves to absorb (pump) the light energy of the light source during the illumination of the light source - in the "Em" phase - in order to continue to illuminate in the so-called "off” phase of the light source (relaxation) and thus reducing the flicker of the lighting device during operation.
- the associated relaxation time t_relax is defined as the time in which the radiation intensity drops by a factor of e when the primary radiation is switched off.
- a light buffer may also have several different relaxation times, eg. B. depending on the radiated wavelength.
- a light source or lamp operated with alternating current is preferred.
- the lighting device has at least two light buffers with different relaxation times.
- the light buffer which is sensitive to the shortest wavelength has the greatest relaxation time.
- the light buffer may be located both in the immediate vicinity of the light source (eg, on the LED chip, in or on the LED package, etc.) and remote from the light source.
- a lighting device is preferred in which the light buffer which is used for the shortest possible lenate is sensitive, which is arranged at least one light source closest.
- a lighting device in which at least one light buffer additionally has a wavelength-converting property is preferred.
- a color radiation of the lamp can be adjusted.
- a light source in particular LED
- UV LEDs are particularly advantageous for this because the primary radiation is invisible. Therefore, no "color flickering" caused by the primary radiation is visible, and UV LEDs also have a high luminous efficacy.
- a lighting device is preferred in which the light buffer that is sensitive to the shortest wavelength has no or no significant amount of wavelength conversion material.
- the wavelength conversion material comprises phosphorus.
- one or more suitable phosphorescent or luminescent materials may be used, in particular phosphorus-based.
- light buffer materials and / or conversion materials are suitable:
- Yellow phosphorus eg yttrium aluminum garnet with Ce activates Y3 (Al, Si) 5012: Ce (YAG: Ce));
- Red phosphorus eg activated by Eu or Sn.
- Gallophosphates and silicates can be used as white phosphorus (eg based on Zmk gallophosphate with nanopores, Eu-doped silicates, such as Li 2 SrSiO 4 : Eu (2+), Ba 9 Sc 2 Si 6 O 24 IEu (2+ ), Ca 3 Si 2 O 7 : Eu (2+), Sr orthosilicates Sr 2 SiO 4 [Eu (2+), La (3+)]).
- the light buffer material (s) of the respective light buffer may be the same and the wavelength conversion material (s) (i.e., both
- the relaxation time t_relax of at least one light buffer - in particular of the light buffer closest to the light source (s) in the case of several light buffers - is greater than the period T of the AC voltage, ie t_relax> T. If the light buffer contains chemical components or subregions has multiple relaxation times (for example at different wavelengths of the emitted radiation), it is preferred if this condition is fulfilled at least for a relaxation time.
- a light-emitting device is preferred in which a light-off time of the light buffer is at least 1 ms, preferably at least 5 ms, more preferably at least 10 ms.
- Half-life decay times well below 1 ms are less preferred because at very high current frequencies (eg, during high-frequency PWM operation) the eye integrates light differences, and at long dark times (eg very low AC frequencies) half-life decay time then flicker can not effectively depress.
- Half-value decay time is understood to mean the time-dependent, possibly frequency-dependent, duration of a luminescent material to which a luminous intensity only shuts off after the primary light source has been switched off is still 50% of the output light intensity at the switch-off time.
- a relaxation time of at least one light buffer which is greater than about five times the period T of the AC voltage, ie t_relax> 5 -T.
- the relaxation time is greater than ten times the period T of the AC voltage but less than fifty times the period T of the AC voltage, that is, 10 -t ⁇ t_relax ⁇ 50 -T.
- a preferred relaxation time t relax of about 0.2 s to about 1 s results.
- the known phosphors have relaxation times of less than 1 ⁇ s to hours, so that these times can be easily realized by the choice of the appropriate phosphor (e.g., white phosphorus).
- a lighting device which has a driver for driving the at least one light source, which comprises a rectifier with no or with only a small-sized smoothing capacitor.
- a lighting device which has a light bulb socket can be preferred.
- a lighting device which is adapted to be used in a fluorescent lamp socket.
- retrofit lamps particularly preferably fit substantially into a standardized contour, eg. B. suitable for E26.
- the object is also achieved by means of a lamp which has at least one such lamp.
- the object is also achieved by means of a method for illuminating, in which a light source, in particular light-emitting diode, is operated with alternating current and / or in PWM Bet ⁇ eb, light energy emitted by the light source is absorbed by at least one light buffer and the absorbed light energy for smoothing a Lichtmtensitat Delayed is emitted again.
- a light source in particular light-emitting diode
- FIG. 1 shows a cross-sectional illustration in side view of a retrofit lamp according to the invention to an LED-based light bulb
- FIG 2 shows a cross-sectional view in side view of a erfmdungsgedorfe retrofit lamp to a fluorescent tubes on LED basis.
- FIG. 1 shows a lighting device 1 in the form of a so-called. Retrofit lamp to a light bulb with E26 contour based on ultraviolet emitting light-emitting diodes (UV LEDs) 2 as
- the UV LEDs 2 are mounted symmetrically in the circumferential direction on a substrate 3, which is designed here as a metal core board.
- the substrate 3 and a light-transmitting bulb or shell 4 surrounding the substrate 3 and the LEDs 2 are mounted on an Edison socket 5, which has known electrical contacts 6 for supplying power to the LEDs 2.
- the UV LEDs 2 are connected so that they are arranged in branches of an LED chain, wherein the branches are connected in anti-parallel to each other and the chain is directly connected to the contacts 6 of the base 5.
- Each LED 2 thus draws current from a half-wave of the applied alternating current of here exemplary 50 Hz and lights up accordingly 50 times per second, when the current or the voltage of the half-wave exceeds a certain threshold.
- a layered near-zone light buffer 7 is arranged in the immediate vicinity of the light sources 2.
- a diffusely scattering intermediate-zone light buffer 8 surrounds the near-zone light buffer 7.
- the intermediate-zone light buffer 8 is in turn surrounded by a remote zone light buffer 9, which is applied in layers to the piston 4.
- the intermediate zone light buffer 8 and the remote zone light buffer 9 have phosphorescent additives which serve to produce the desired color spectrum of the lighting device 1.
- the near-zone light buffer 7 has a relaxation time t_relax_n
- the intermediate-zone light buffer 8 has a relaxation time t_relax i
- the far-zone light buffer 9 has a relaxation time t_relax_f, which differ.
- the relaxation times are selected such that the condition t_relax_n> max ⁇ t_relax_i, t_relax_f ⁇ is fulfilled.
- the LEDs When operating with the 50 Hz mains voltage selected here by way of example, the LEDs light up with corresponding frequency. Then, the light energy emitted by the LEDs is first absorbed to a significant extent by the near-zone light buffer 7 and released again with a corresponding relaxation time t_relax_n at the same wavelength with a time delay.
- the near-zone light buffer 7 thus "smears" the light flux tips of the LEDs, which reduces the flickering of the lighting device 1.
- the UV light radiated again by the near-zone light buffer 7 then passes to the intermediate-zone light buffer 8, where it is likewise absorbed and re-emitted. However, the emission now happens with a longer relaxation time t_relax_i.
- the inter-zone light buffer 8 has a wavelength conversion material, so that the light emitted by it is shifted in the visible range.
- light emitted by the intermediate-zone light buffer 8 reaches the far-zone light buffer 9. There it is absorbed and re-emitted with a relaxation time t_relax_i, which is also greater than t_relax_n.
- the far-zone light buffer 8 has at least one wavelength conversion material, so that the light emitted by it has a wavelength which is shifted in a certain visible range, which differs at least partially from the spectral range which emits from the inter-zone light buffer 8 becomes.
- an LED lighting device 1 can be obtained which does not flicker or has very little flickering and also has a defined color emission.
- the light buffer 12 in the form of a phosphorescent layer is applied to a glass envelope 13.
- the light source is also UV LEDs 2, which are arranged on a substrate 14.
- the base 15 and the contacts 16 are designed so that the lamp 11 can be inserted into a conventional version of a fluorescent lamp.
- only one light buffer 12 is present, which absorbs the UV light radiated by the LEDs 2 and wel- len GmbHumgepurposetes light in the visible range with a relaxation time t_relax than again gives off.
- the present invention is not limited to the embodiments shown.
- other light sources may be used instead of an LED, for example a compact fluorescent tube.
- white or monochrome or clusters of monochrome light sources can be used.
- the lamps do not have to have a retro fit shape.
- no wavelength conversion is required.
- the power source may also have a frequency other than 50 Hz, e.g. B. 60 Hz, and may additionally or alternatively be pulse width modulated. Then the relaxation time of at least one light buffer is preferably matched to a typical distance between 'Em' phases of the PWM.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007045540A DE102007045540A1 (de) | 2007-09-24 | 2007-09-24 | Leuchtvorrichtung mit Lichtpuffer |
| PCT/EP2008/008091 WO2009040111A1 (de) | 2007-09-24 | 2008-09-24 | Leuchtvorrichtung mit lichtpuffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2193308A1 true EP2193308A1 (de) | 2010-06-09 |
Family
ID=40297881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08802568A Withdrawn EP2193308A1 (de) | 2007-09-24 | 2008-09-24 | Leuchtvorrichtung mit lichtpuffer |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8497621B2 (de) |
| EP (1) | EP2193308A1 (de) |
| CN (1) | CN101809355A (de) |
| DE (1) | DE102007045540A1 (de) |
| WO (1) | WO2009040111A1 (de) |
Families Citing this family (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4966530B2 (ja) * | 2005-09-15 | 2012-07-04 | 国立大学法人 新潟大学 | 蛍光体 |
| US8040026B2 (en) | 2008-07-08 | 2011-10-18 | Candle Laboratory Co., Ltd | Illumination lamp with inner light tube |
| JP3153766U (ja) * | 2008-07-08 | 2009-09-17 | 築光光電股▲ふん▼有限公司 | 照明器具 |
| CN105444014A (zh) * | 2009-05-04 | 2016-03-30 | 皇家飞利浦电子股份有限公司 | 包括设置在半透明外壳内的光发射器的光源 |
| US8466611B2 (en) * | 2009-12-14 | 2013-06-18 | Cree, Inc. | Lighting device with shaped remote phosphor |
| DE102009054994B4 (de) * | 2009-12-18 | 2012-06-28 | Osram Ag | Endstück für Retrofit-Leuchtstofflampe und Retrofit-Leuchtstofflampe |
| US8632196B2 (en) * | 2010-03-03 | 2014-01-21 | Cree, Inc. | LED lamp incorporating remote phosphor and diffuser with heat dissipation features |
| US9316361B2 (en) | 2010-03-03 | 2016-04-19 | Cree, Inc. | LED lamp with remote phosphor and diffuser configuration |
| CN102884364A (zh) * | 2010-03-03 | 2013-01-16 | 克利公司 | 具有远端磷光体及漫射器布置的led灯 |
| US9024517B2 (en) * | 2010-03-03 | 2015-05-05 | Cree, Inc. | LED lamp with remote phosphor and diffuser configuration utilizing red emitters |
| US9062830B2 (en) | 2010-03-03 | 2015-06-23 | Cree, Inc. | High efficiency solid state lamp and bulb |
| US8562161B2 (en) | 2010-03-03 | 2013-10-22 | Cree, Inc. | LED based pedestal-type lighting structure |
| US9625105B2 (en) * | 2010-03-03 | 2017-04-18 | Cree, Inc. | LED lamp with active cooling element |
| US9275979B2 (en) * | 2010-03-03 | 2016-03-01 | Cree, Inc. | Enhanced color rendering index emitter through phosphor separation |
| US10359151B2 (en) | 2010-03-03 | 2019-07-23 | Ideal Industries Lighting Llc | Solid state lamp with thermal spreading elements and light directing optics |
| US9310030B2 (en) * | 2010-03-03 | 2016-04-12 | Cree, Inc. | Non-uniform diffuser to scatter light into uniform emission pattern |
| US8882284B2 (en) | 2010-03-03 | 2014-11-11 | Cree, Inc. | LED lamp or bulb with remote phosphor and diffuser configuration with enhanced scattering properties |
| US9057511B2 (en) | 2010-03-03 | 2015-06-16 | Cree, Inc. | High efficiency solid state lamp and bulb |
| US8931933B2 (en) * | 2010-03-03 | 2015-01-13 | Cree, Inc. | LED lamp with active cooling element |
| US9500325B2 (en) * | 2010-03-03 | 2016-11-22 | Cree, Inc. | LED lamp incorporating remote phosphor with heat dissipation features |
| US20110227102A1 (en) * | 2010-03-03 | 2011-09-22 | Cree, Inc. | High efficacy led lamp with remote phosphor and diffuser configuration |
| DE102010013538A1 (de) | 2010-03-31 | 2011-10-06 | Ledo Led Technologie Gmbh | LED-Leuchte als Glühbirnensubstitut |
| DE102010029593B4 (de) * | 2010-04-09 | 2026-01-29 | Tridonic Gmbh & Co Kg | LED-Modul mit Doppeldiffusor |
| US10451251B2 (en) | 2010-08-02 | 2019-10-22 | Ideal Industries Lighting, LLC | Solid state lamp with light directing optics and diffuser |
| USD654193S1 (en) | 2010-09-24 | 2012-02-14 | Cree. Inc. | LED lamp |
| CN102468414B (zh) * | 2010-11-09 | 2014-08-13 | 四川新力光源股份有限公司 | 脉冲led白光发光装置 |
| US20120134161A1 (en) * | 2010-11-30 | 2012-05-31 | Nobuo Kawamura | Lighting apparatus |
| USD653365S1 (en) | 2010-12-19 | 2012-01-31 | Cree, Inc. | LED lamp |
| USD653366S1 (en) | 2010-12-19 | 2012-01-31 | Cree, Inc. | LED lamp |
| USD660990S1 (en) | 2011-01-19 | 2012-05-29 | Cree, Inc. | LED lamp |
| US9068701B2 (en) | 2012-01-26 | 2015-06-30 | Cree, Inc. | Lamp structure with remote LED light source |
| US9234655B2 (en) | 2011-02-07 | 2016-01-12 | Cree, Inc. | Lamp with remote LED light source and heat dissipating elements |
| US11251164B2 (en) | 2011-02-16 | 2022-02-15 | Creeled, Inc. | Multi-layer conversion material for down conversion in solid state lighting |
| TWI553097B (zh) * | 2011-03-11 | 2016-10-11 | 英特曼帝克司公司 | 用於交流電發光二極體(ac led)照明應用之毫秒衰退磷光體 |
| US9696011B2 (en) * | 2011-04-22 | 2017-07-04 | Once Innovations, Inc. | Extended persistence and reduced flicker light sources |
| USD683483S1 (en) | 2011-04-26 | 2013-05-28 | The Proctor & Gamble Company | Light bulb |
| USD689630S1 (en) | 2011-04-26 | 2013-09-10 | The Procter & Gamble Company | LED bulb |
| WO2013112542A1 (en) | 2012-01-25 | 2013-08-01 | Intematix Corporation | Long decay phosphors for lighting applications |
| US9488359B2 (en) | 2012-03-26 | 2016-11-08 | Cree, Inc. | Passive phase change radiators for LED lamps and fixtures |
| DE202012103514U1 (de) | 2012-09-14 | 2013-12-17 | Zumtobel Lighting Gmbh | TV-taugliche dimmbare LED-Leuchte |
| US9570661B2 (en) * | 2013-01-10 | 2017-02-14 | Cree, Inc. | Protective coating for LED lamp |
| US9657922B2 (en) | 2013-03-15 | 2017-05-23 | Cree, Inc. | Electrically insulative coatings for LED lamp and elements |
| FR3006423B1 (fr) * | 2013-05-31 | 2017-12-22 | Ads Design | Decoration lumineuse et sa methode d'eclairage. |
| US9653671B2 (en) | 2014-02-13 | 2017-05-16 | Infineon Technologies Ag | Light emitting device and method for operating a plurality of light emitting arrangements |
| US9360188B2 (en) | 2014-02-20 | 2016-06-07 | Cree, Inc. | Remote phosphor element filled with transparent material and method for forming multisection optical elements |
| WO2016074110A1 (zh) * | 2014-11-13 | 2016-05-19 | 钰瀚科技股份有限公司 | 利用慢衰减磷光体以减少闪烁的发光二极管照明模块 |
| AU2016100319B4 (en) * | 2015-05-11 | 2016-08-04 | X Tec Pty Ltd | A low energy building light arrangement |
| CN105385441B (zh) * | 2015-12-03 | 2018-04-13 | 河北利福光电技术有限公司 | 一种碱土金属硅酸盐绿/黄绿色荧光粉及其制备方法和应用 |
| DE102019110222A1 (de) * | 2019-02-22 | 2020-08-27 | Ledvance Gmbh | LED-Leuchte mit reduziertem stroboskopischen Flimmern |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT170777B (de) * | 1948-10-09 | 1952-03-25 | Lumalampan Ab | Blaustrahlender Leuchtstoff |
| US4066711A (en) * | 1976-03-15 | 1978-01-03 | Suomen Sokeri Osakeyhtio (Finnish Sugar Company) | Method for recovering xylitol |
| EP0968520B1 (de) | 1997-10-20 | 2004-01-07 | Koninklijke Philips Electronics N.V. | Niederdruckquecksilberentladungslampe |
| US6227679B1 (en) * | 1999-09-16 | 2001-05-08 | Mule Lighting Inc | Led light bulb |
| GB2366610A (en) | 2000-09-06 | 2002-03-13 | Mark Shaffer | Electroluminscent lamp |
| US6860628B2 (en) * | 2002-07-17 | 2005-03-01 | Jonas J. Robertson | LED replacement for fluorescent lighting |
| US7488432B2 (en) * | 2003-10-28 | 2009-02-10 | Nichia Corporation | Fluorescent material and light-emitting device |
| JP3802911B2 (ja) * | 2004-09-13 | 2006-08-02 | ローム株式会社 | 半導体発光装置 |
| US20060228973A1 (en) * | 2005-04-11 | 2006-10-12 | Jlj, Inc. | LED Light Strings |
| JP4945112B2 (ja) * | 2005-10-28 | 2012-06-06 | スタンレー電気株式会社 | Led照明装置 |
| JP2007165728A (ja) * | 2005-12-15 | 2007-06-28 | Toshiba Discrete Technology Kk | 発光装置及び可視光通信用照明装置 |
| US7682850B2 (en) * | 2006-03-17 | 2010-03-23 | Philips Lumileds Lighting Company, Llc | White LED for backlight with phosphor plates |
| KR100911774B1 (ko) * | 2007-06-22 | 2009-08-11 | 서울옵토디바이스주식회사 | 지연형광체를 구비하는 교류용 발광소자 |
-
2007
- 2007-09-24 DE DE102007045540A patent/DE102007045540A1/de not_active Withdrawn
-
2008
- 2008-09-24 US US12/679,670 patent/US8497621B2/en not_active Expired - Fee Related
- 2008-09-24 EP EP08802568A patent/EP2193308A1/de not_active Withdrawn
- 2008-09-24 WO PCT/EP2008/008091 patent/WO2009040111A1/de not_active Ceased
- 2008-09-24 CN CN200880108557A patent/CN101809355A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009040111A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US8497621B2 (en) | 2013-07-30 |
| US20100201284A1 (en) | 2010-08-12 |
| WO2009040111A4 (de) | 2009-05-22 |
| DE102007045540A1 (de) | 2009-04-02 |
| CN101809355A (zh) | 2010-08-18 |
| WO2009040111A1 (de) | 2009-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2193308A1 (de) | Leuchtvorrichtung mit lichtpuffer | |
| DE69937993T2 (de) | Beleuchtungsanordnung | |
| DE10233050B4 (de) | Lichtquelle auf LED-Basis für die Erzeugung von Licht unter Ausnutzung des Farbmischprinzips | |
| DE102006009955B4 (de) | Weiße Lichtquelle und Beleuchtungsvorrichtung, die die weiße Lichtquelle verwendet | |
| DE102004047681B4 (de) | LED-Schaltungsanordnung mit einem Diodengleichrichter | |
| DE102014106894B4 (de) | Wechselstrombetriebenes LED-Gerät mit regulierbaren Lichteigenschaften | |
| DE112013004802B4 (de) | Beleuchtungsvorrichtung zum Erzeugen einer Lichtemission und Verfahren zum Erzeugen einer Lichtemission | |
| EP3132180B1 (de) | Led-modul zur abgabe von weisslicht | |
| DE102012200711A1 (de) | LED Dimmer-Modul | |
| WO2014063976A1 (de) | Leuchtdiodenmodul | |
| WO2016180930A1 (de) | Strahlungsemittierendes optoelektronisches bauelement | |
| DE102017101356A1 (de) | Licht emittierende Vorrichtung | |
| DE102005005583A1 (de) | Weißlichtvorrichtung mit einstellbarer Farbtemperatur und Verfahren zum Erzeugen von Weißlicht | |
| EP3163637B1 (de) | Weisses licht abstrahlendes led-modul | |
| DE202010001098U1 (de) | Gelblicht-Röhre auf LED-Basis | |
| EP1602134A2 (de) | Lumineszenzkonversions-led mit nachleuchteffekt und deren verwendung sowie zugeh riges betriebsverfahren | |
| DE102015120775B4 (de) | Optoelektronisches Bauelement und Hintergrundbeleuchtung für ein Display | |
| DE102012205461A1 (de) | Led-chip mit temperaturabhängiger wellenlänge | |
| WO2016198348A1 (en) | Ac-led with hybrid led channels | |
| AT14515U1 (de) | LED-Modul mit hohem Farbwiedergabeindex | |
| WO2013149890A1 (de) | Led-leuchtvorrichtung mit minzefarbenen und bernsteinfarbenen leuchtdioden | |
| DE102018123677A1 (de) | Beleuchtungsvorrichtung und lichtemittierende Vorrichtung | |
| EP3289618B1 (de) | Led-modul zur abgabe von weisslicht | |
| EP2997609B1 (de) | Weisslicht-led-modul zur objektbeleuchtung | |
| EP2473007B1 (de) | LED-Modul zur passiven Lichtstromstabilisierung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20100330 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OSRAM AG |
|
| 17Q | First examination report despatched |
Effective date: 20120904 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OSRAM GMBH |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OSRAM GMBH |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20140401 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: F21K0007000000 Ipc: F21K0099000000 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: F21K0007000000 Ipc: F21K0099000000 Effective date: 20140910 |