[특허]Solid state lighting apparatus and circuits including LED segments configured for targeted spectral power distribution and methods of operating the same

Solid state lighting apparatus and circuits including LED segments configured for targeted spectral power distribution and methods of operating the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05B-037/02 H05B-039/04 H05B-041/36 G05F-001/00 H01L-033/00 H05B-033/08
출원번호	US-0281131 (2014-05-19)
등록번호	US-9839083 (2017-12-05)
발명자 / 주소	van de Ven, Antony P. Reynolds, Matthew C.
출원인 / 주소	Cree, Inc.
대리인 / 주소	Myers Bigel, P.A.
인용정보	피인용 횟수 : 0 인용 특허 : 163

초록 ▼

A dimmable solid state lighting apparatus can include a plurality of light emitting diode (LED) segments including a first LED segment that can have a targeted spectral power distribution for light emitted from the apparatus that is different than spectral power distributions for other LED segments included in the plurality of LED segments. An LED segment selection circuit can be configured to selectively control current through the plurality of LED segments to shift the light emitted by the apparatus to the targeted spectral power distribution responsive to dimming input.

대표청구항 ▼

1. A dimmable solid state lighting apparatus comprising: a plurality of light emitting diode (LED) segments including a first LED segment having a targeted minimum Correlated Color Temperature (CCT) value that is less than or equal to respective CCT values of all other LED segments in the plurality of LED segments, and wherein the first LED segment comprises a first forward bias voltage that is less than or equal to forward bias voltages of all other LED segments in the plurality of LED segments;an LED segment selection circuit configured to selectively control current through the plurality of LED segments to provide an increasing portion of instantaneous power to the first LED segment relative to all the other LED segments while decreasing instantaneous power that is provided to ones of the other LED segments, to shift the light emitted by the apparatus towards the targeted minimum CCT value emitted by the first LED segment while simultaneously decreasing a brightness of light emitted by the apparatus responsive to increased dimming input indicating an increased dimming level of the apparatus so as to shift the light emitted by the apparatus from including the respective CCT values of all of the plurality of LED segments at a reduced level of dimming input to including primarily the targeted minimum CCT value of the first LED segment of the plurality of LED segments at an increased level of dimming input;a rectified AC voltage signal input to the dimmable solid state lighting apparatus configured to receive a rectified AC voltage signal; anda voltage controlled current source that is coupled to the rectified AC voltage signal input and to the plurality of LED segments that regulates the current provided to the plurality of LED segments in response to a magnitude of the rectified AC voltage signal. 2. The apparatus of claim 1 wherein the plurality of LED segments are coupled to the LED segment selection circuit as separately controllable banks of LEDs. 3. The apparatus of claim 1 wherein each of the respective CCT values of the LED segments included in the plurality of LED segments is located substantially on a Planckian locus. 4. The apparatus of claim 3 wherein the LED segment selection circuit is configured to selectively control currents through the plurality of LED segments so that the light emitted by the apparatus substantially shifts to the targeted minimum CCT value while conforming to the Planckian locus responsive to the increased dimming input. 5. The apparatus of claim 1 wherein the plurality of LED segments are coupled in series to provide an LED string, wherein the LED segment selection circuit is configured to selectively switch a string current through combinations of the LED segments using a phase of a rectified ac input signal or a level of the rectified ac input signal. 6. The apparatus of claim 5 wherein a full CCT value for light output from the apparatus is defined as all LED segments on. 7. The apparatus of claim 6 wherein the LED segment selection circuit is configured to change the light output from the apparatus from the full CCT value to the targeted minimum CCT value responsive to the increased dimming input. 8. The apparatus of claim 7 wherein the LED segment selection circuit increasingly switches the LED string current through the first LED segment to provide the increasing portion of the instantaneous power from the rectified ac input signal over a cycle to the first LED segment responsive to the increased dimming input. 9. The apparatus of claim 1, wherein the reduced level of dimming input is a minimum dimming input for the apparatus, and wherein the increased level of dimming input is a maximum dimming input for the apparatus. 10. A dimmable solid state lighting apparatus comprising: a plurality of light emitting diode (LED) segments including a first LED segment having a targeted minimum CCT value for light emitted from the apparatus, the targeted minimum CCT value being less than or equal to respective CCT values for all other LED segments included in the plurality of LED segments;an LED segment selection circuit configured to selectively control current through the plurality of LED segments to shift the light emitted from the apparatus towards the targeted minimum CCT value of the first LED segment while simultaneously decreasing an intensity of light emitted by the apparatus responsive to increased dimming input indicating an increased dimming level of the apparatus;a rectified AC voltage signal input to the dimmable solid state lighting apparatus configured to receive a rectified AC voltage signal; anda voltage controlled current source that is coupled to the rectified AC voltage signal input and to the plurality of LED segments that regulates the current provided to the plurality of LED segments in response to a magnitude of the rectified AC voltage signal. 11. The apparatus of claim 10 wherein the plurality of LED segments are coupled to the LED segment selection circuit as separately controllable banks of LEDs. 12. The apparatus of claim 10 wherein each of the respective CCT values of the LED segments included in the plurality of LED segments is located substantially on a Planckian locus. 13. The apparatus of claim 12 wherein the LED segment selection circuit is configured to selectively control currents through the plurality of LED segments so that the light emitted from the apparatus substantially shifts to the targeted minimum CCT value while conforming to the Planckian locus responsive to the increased dimming input. 14. The apparatus of claim 10 wherein the plurality of LED segments are coupled in series to provide an LED string, wherein the LED segment selection circuit is configured to selectively switch a string current through the LED segments to provide a full on CCT value for the light emitted from the apparatus and configured to increasingly switch the string current through the first LED segment to provide an increasing portion of power from a rectified ac input signal to the first LED segment to provide the targeted minimum CCT value for light emitted from the apparatus responsive to the increased dimming input. 15. The apparatus of claim 14 wherein the LED segment selection circuit is configured to selectively switch the string current through combinations of the LED segments using a phase of the rectified ac input signal or a level of the rectified ac input signal. 16. The apparatus of claim 15 wherein the full on CCT value for the light output from the apparatus is defined based on a combination of average on times for each of the LED segments. 17. The apparatus of claim 10, wherein shifting the light emitted from the apparatus towards the targeted minimum CCT value comprises selectively controlling current through the plurality of LED segments to provide current to the first LED segment having the targeted minimum CCT value for the light emitted from the apparatus and not provide current to the other LED segments included in the plurality of LED segments. 18. The apparatus of claim 10, wherein shifting the light emitted from the apparatus towards the targeted minimum CCT value comprises selectively controlling current through the plurality of LED segments to shift the light emitted from the apparatus to the targeted minimum CCT value provided by the first LED segment. 19. A solid state lighting circuit comprising: a plurality of light emitting diode (LED) segments including a first LED segment having a minimum Correlated Color Temperature (CCT) value among respective CCT values for the plurality of LED segments; andan LED segment selection circuit configured to selectively control current through the plurality of LED segments to shift the light emitted from the solid state lighting circuit towards the minimum CCT value while simultaneously decreasing an intensity of light emitted from the solid state lighting circuit responsive to a dimming input, the solid state lighting circuit further comprising:a plurality of capacitors, each being electrically connected in parallel with a respective one of the LED segments;a plurality of blocking diodes, each being electrically connected in series between the LED segments;a rectified AC voltage signal input to the solid state lighting circuit configured to receive a rectified AC voltage signal; anda voltage controlled current source that is coupled to the rectified AC voltage signal input and to the plurality of LED segments that regulates the current provided to the plurality of LED segments in response to a magnitude of the rectified AC voltage signal applied to the solid state lighting circuit. 20. The circuit of claim 19 wherein the plurality of LED segments are coupled to the LED segment selection circuit as separately controllable banks of LEDs. 21. The circuit of claim 19 wherein each of the respective CCT values of the LED segments included in the plurality of LED segments is located substantially on a Planckian locus. 22. The circuit of claim 21 wherein the LED segment selection circuit is configured to selectively control currents through the plurality of LED segments so that the light emitted from the circuit substantially shifts to the minimum CCT value while conforming to the Planckian locus responsive to the dimming input. 23. The circuit of claim 19 wherein the plurality of LED segments are coupled in series to provide an LED string, wherein the plurality of LED segments comprise separately biased LED segments including the first LED segment comprising a first forward bias voltage that is less than second and third forward bias voltages of second and third LED segments. 24. The circuit of claim 23 wherein a second CCT value of the second LED segment is greater than the minimum CCT value and a third CCT value of the third LED segment is greater than the second CCT value. 25. The circuit of claim 24 wherein the first LED segment includes at least one LED including phosphor configured to emit light having the minimum CCT value, wherein the second LED segment includes at least one LED including phosphor configured to emit light having the second CCT value, and wherein the third LED segment includes at least one LED including phosphor configured to emit light having the third CCT value. 26. The circuit of claim 23 wherein the minimum CCT value of the first LED segment comprises about ccxy (0.55, 0.41), a CCT value of the second LED segment comprises about ccxy (0.49, 0.42), and a CCT value of the third LED segment comprises about ccxy (0.43, 0.41). 27. The circuit of claim 23 wherein the minimum CCT value of the first LED segment comprises a predetermined dimmest light level provided by the plurality of LED segments; wherein the third LED segment comprises a third CCT value that is less than a predetermined greatest light level provided by the plurality of LED segments; andwherein the second LED segment comprises a second CCT value that is about mid-point between the minimum CCT value and the third CCT value is about ccxy (0.43, 0.41). 28. The circuit of claim 23 wherein the LED segment selection circuit is configured to selectively switch a string current through the first LED segment to provide increased power through the first LED segment over a cycle of the rectified ac voltage signal, responsive to input from a dimmer circuit. 29. The circuit of claim 28 wherein the input from the dimmer circuit comprises a trailing edge phase cut dimmer input to provide the increased power at less than about 45 degrees of phase as the trailing edge phase cut dimmer input. 30. The circuit of claim 28 wherein the input from the dimmer circuit comprises a leading edge phase cut dimmer input to provide the increased power at greater than about 135 degrees of phase as the leading edge phase cut dimmer input. 31. The circuit of claim 28 wherein the rectified ac voltage signal is based on a 120 volt ac input signal and the separately biased LED segments comprise: the second LED segment having the second forward bias voltage of about 40 volts;the third LED segment having the third forward bias voltage of about 80 volts; andwherein the first LED segment has the first forward bias voltage of about 20 volts. 32. The circuit of claim 28 wherein the rectified ac voltage signal is based on a 230 volt ac input signal and the separately biased LED segments comprise: the second LED segment having the second forward bias voltage of about 80 volts;the third LED segment having the third forward bias voltage of about 80 volts;a fourth LED segment having a fourth forward bias voltage of about 80 volts; andwherein the first LED segment has the first forward bias voltage of about 40 volts. 33. A method of operating a solid state lighting circuit including a plurality of light emitting diode (LED) segments including a targeted LED segment, the method comprising: selectively switching current through the targeted LED segment while simultaneously decreasing a combined intensity of light emitted by the plurality of LED segments responsive to dimming input indicating an increased dimming level of the plurality of LED segments so as to shift a light emitted by the apparatus from including all of the plurality of LED segments at a reduced level of dimming input to including primarily the targeted LED segment of the plurality of LED segments at an increased level of dimming input,wherein the targeted LED segment has a targeted minimum CCT value that is less than or equal to respective CCT values for all other LED segments included in the plurality of LED segments,wherein the targeted LED segment has a targeted forward bias voltage that is less than or equal to forward bias voltages of all other LEDs segments in the plurality of LED segments, andwherein selectively switching the current through the targeted LED segment is performed by a voltage controlled current source and is responsive to a magnitude of a rectified AC voltage signal applied to the solid state lighting circuit. 34. The method of claim 33 wherein the plurality of LED segments comprise separately controllable banks of LEDs. 35. The method of claim 33 wherein each of the respective CCT values of the LED segments included in the plurality of LED segments is located substantially on a Planckian locus. 36. The method of claim 35 wherein selectively switching comprises selectively controlling currents through the plurality of LED segments so that light emitted by the circuit substantially shifts to the targeted minimum CCT value while conforming to the Planckian locus responsive to increased dimming input. 37. The method of claim 33 wherein the plurality of LED segments are coupled in series to provide an LED string, wherein selectively switching comprises switching a string current through combinations of the LED segments using a phase of a rectified ac input signal or a level of the rectified ac input signal. 38. A method of operating a solid state lighting circuit including a plurality of light emitting diode (LED) segments, the method comprising: increasingly switching current through a minimum Correlated Color Temperature (CCT) LED segment included in the plurality of LED segments, the minimum CCT LED segment having a minimum CCT value that is less than or equal to respective CCT values for all other LED segments of the plurality of LED segments, while simultaneously decreasing an intensity of light emitted by the plurality of LED segments as dimming increases that shifts the light emitted by the plurality of LED segments towards the minimum CCT value of the minimum CCT LED segment,wherein increasingly switching the current through the minimum CCT LED segment is performed by a voltage controlled current source and is responsive to a magnitude of a rectified AC voltage signal applied to the solid state lighting circuit.

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Fisler ; Charles F., Brightness control circuit for LED displays.
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Redfern, Chris, Ceiling lighting fixture.
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Kuijk Maarten,BEX ; Heremans Paul,BEX ; Borghs Gustaaf,BEX ; Vounckx Roger,BEX, Cell for optical-to-electrical signal conversion and amplification, and operation method thereof.
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Henry, George C., Charge pump regulator with load current control.
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Yoshikawa Yoshinori (Kawasaki JPX) Gotoh Kunihiko (Tama JPX), Constant current source circuit.
상세보기
Alois Biebl DE; Franz Schellhorn DE; Guenther Hirschmann DE, Control circuit for LED and corresponding operating method.
상세보기
Biebl, Alois, Control circuit for LED and corresponding operating method.
상세보기
Beretta Giordano B. (Palo Alto CA), Correlated color temperature detector.
상세보기
Baldwin,David J.; Patel,Sanmukh, Current control device for driving LED devices.
상세보기
Bennett Paul T. (Phoenix AZ) Dixon Robert P. (Chandler AZ), Current limit sense circuit and method for controlling a transistor.
상세보기
Wilhelm Wilhelm (Munich DEX) Herrle Jrgen (Ingolstadt DEX), Current mode logic switching stage.
상세보기
King,Leslie Charles; Gould,Carl T.; Vier,Chester G., Decorative luminaires.
상세보기
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Lys,Ihor A.; Dowling,Kevin J.; Morgan,Frederick M., Dimmable LED-based MR16 lighting apparatus and methods.
상세보기
Ortiz Joe A., Diode drive current source.
상세보기
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Choi Robert S. (Landisville PA) Kwai Kong C. (Mount Joy PA) Oong Choi (Lancaster PA), Double oscillator battery powered flashing superluminescent light emitting diode safety warning light.
상세보기
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상세보기
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Yoo, Young Ho, Explosion-resistant street light.
상세보기
Weindorf, Paul F. L.; Anderson, David R., Flexible led backlighting circuit.
상세보기
Bouchard, Guy P, Floating switch controlling LED array segment.
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Xiao, Xu-Hua; Liu, Yi-San; He, Li, Flood lamp assembly having a reinforced bracket for supporting a weight thereof.
상세보기
Tang Shih-Chuan,TWX, Floodlight.
상세보기
Ge, Shichao; Lam, Victor, Fluorescent lamp for lighting applications.
상세보기
Jiang Su-Jane (Tainan Hsien TWX), Head light structure of a car.
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Sun,Tsung Ting; Tsai,Cheng Hung, Heat dissipating apparatus for lighting utility.
상세보기
Shaner,Jeff R., Heat sink.
상세보기
Groh Allen R. (Roanoke TX), Heat-dissipating light fixture for use with tungsten-halogen lamps.
상세보기
Negley Gerald H., High efficiency light emitting diodes.
상세보기
Eric J. Tarsa ; Brian Thibeault, High output radial dispersing lamp using a solid state light source.
상세보기
Ihor Lys ; George G. Mueller ; Frederick Marshall Morgan ; Michael K. Blackwell, Illumination components.
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Turnbull Robert R. ; Knapp Robert C. ; Roberts John K., Illuminator assembly incorporating light emitting diodes.
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Eggers Richard B., Incandescent bulb luminance matching LED circuit.
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Chun, James K., Incandescent tube bulb replacement assembly.
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Dowling,Kevin; Morgan,Frederick; Chemel,Brian; Mincheva,Adriana; Lys,Ihor A., Information systems.
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Latham, II, Paul W.; Canfield, John C., Integrated device providing current-regulated charge pump driver with capacitor-proportional current.
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Anderson Matthew E. ; Hughes ThomasA., Kinetically multicolored light source.
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Chang Chin ; Peng Shaomin, LED array employing a lattice relationship.
상세보기
Marshall Thomas M. ; Pashley Michael D. ; Herman Stephen ; Bruning Gert W., LED array having an active shunt arrangement.
상세보기
Allen,David; Allen,Mark, LED assemblies and light strings containing same.
상세보기
Mick,Perry J., LED brightness control system for a wide-range of luminance control.
상세보기
Sell, Timothy L., LED conversion system for recessed lighting.
상세보기
Sawada,Shinichi; Shimizu,Takayuki, LED drive circuit, LED lighting device, and backlight.
상세보기
Perez Ricardo (Gent BEX), LED driver circuit.
상세보기
David F. Swanson ; Marcello Criscione IT, LED driver circuit and method.
상세보기
Swanson, David F.; Stewart, James W.; Lam, Michael K.; Criscione, Marcello, LED driver circuit and method.
상세보기
Min, Young-Kee; Clauberg, Bernd; Hontele , Bertrand J. E., LED driver circuit with PWM output.
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Sakura, Shigeyuki; Kaminishi, Katsuji, LED driving circuit and optical transmitting module.
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Wang, Pei Choa, LED illumination apparatus.
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Mo, Ci-Jin; Zhang, Da-Peng, LED lamp.
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Zheng, Shi-Song; Huang, Xing-Gui; Chen, Chin-Chung, LED lamp.
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Liu,Yi San; Xiao,Xu Hua; He,Li, LED lamp with a heat sink.
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Xiao, Xu Hua; He, Li; Liu, Yi San, LED lamp with a heat sink.
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Rashidi, Hamid, LED light with baffle trim.
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Wu,Tsu Yeh, LED light with blaze-like radiance effect.
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Kang, Jeong-il; Lee, Sang-hoon; Lee, Kyoung-geun; Sung, Jun-ho, LED lighting device and method for controlling the same based on temperature changes.
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Gunter,John B.; Berman,George; Berger,Valeriy K., LED lighting system.
상세보기
Shan,Xinxin, LED lighting system.
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Allen, David; Allen, Mark R., LED lights with matched AC voltage using rectified circuitry.
상세보기
Reisenauer William E. ; Gloisten Jennifer L. ; Pawelko Tolek, LED reading light.
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Muthu, Subramanian; Schuurmans, Frank J.; Chang, Chin; Gaines, James, LED-based white-light backlighting for electronic displays.
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Joseph S. Stam ; John K. Roberts, Lamp assembly incorporating optical feedback.
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Osawa, Shigeru; Morikawa, Kazuto, Lamp having outer shell to radiate heat of light source.
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Kano Tetsuhiro (Bamberg DEX), Lamp with ventilated housing.
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Kiley David A., Led drive circuit.
상세보기
Chiu, Chia Fa, Led lamp structure.
상세보기
Shirai Kiyokazu (Kawasaki JPX), Light emitting apparatus comprising multiple groups of LEDs each containing multiple LEDs.
상세보기
Kamikawa,Takeshi; Ito,Shigetoshi; Taneya,Mototaka, Light emitting apparatus, method for driving the light emitting apparatus, and display apparatus including the light emitting apparatus.
상세보기
Piepgras,Colin; Mueller,George G.; Lys,Ihor A.; Dowling,Kevin J.; Morgan,Frederick M., Light emitting diode based products.
상세보기
Lee,Ming Shun; Sung,Ping Ru, Light emitting diode illumination apparatus.
상세보기
Huynh,Kimlong; Tran,Vinhphu Quoc, Light emitting diode multiphase driver circuit and method.
상세보기
Van de Ven, Antony Paul; Chan, Wai Kwan, Light engine for a lighting device.
상세보기
Hartmann, Jr.,Richard; Camarota,Richard J., Light fixture.
상세보기
Hosoya,Hideyuki, Light source controlling circuit and portable electronic apparatus.
상세보기
Paik, Dongki; Kim, Hyunha, Lighting apparatus.
상세보기
Van De Ven, Antony Paul; Chan, Wai Kwan, Lighting device.
상세보기
Van de Ven, Antony Paul; Chan, Wai Kwan; Lay, James Michael; Nguyen, Nick Hoang; Snell, Nathan R., Lighting device.
상세보기
Van De Ven,Antony Paul; Negley,Gerald H., Lighting device and lighting method.
상세보기
Van De Ven, Antony Paul; Negley, Gerald H., Lighting device which includes one or more solid state light emitting device.
상세보기
Harwood,Ronald Paul, Lighting device with multiple power sources and multiple modes of operation.
상세보기
Trott, Gary David; Pickard, Paul Kenneth, Lighting devices and methods of installing light engine housings and/or trim elements in lighting device housings.
상세보기
Redfern, Chris; Wilmotte, Jean-Michel, Lighting fixture.
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Yamuro Yukio,JPX, Long light emitting apparatus.
상세보기
Miller Ira (Tempe AZ), MOS bandgap voltage reference circuit.
상세보기
Leen Monte A., Mercury vapor light.
상세보기
Lebens, Gary A.; Bourn, Charles T.; Lemaire, Charles A., Method and apparatus for a pulsed L.E.D. illumination source.
상세보기
Dygert, Gregory J., Method and apparatus for controlling light emitting diodes.
상세보기
Maxik, Fredric S., Method and apparatus for cooling a lightbulb.
상세보기
Schuurmans, Frank Jeroen Pieter, Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes.
상세보기
van de Ven Antony,HKX, Method and apparatus to improve the color rendering of a solid state light source.
상세보기
Gaines,James M.; Pashley,Michael D., Method for maintaining light characteristics from a multi-chip LED package.
상세보기
Negley Gerald H. (Hillsborough NC), Method for producing high efficiency light-emitting diodes and resulting diode structures.
상세보기
Kawamura, Naoto; Thomas, David R; Waller, David J; Weber, Timothy L, Method of forming pillars in a fully integrated thermal inkjet printhead.
상세보기
Mueller, George G.; Morgan, Frederick M.; Lys, Ihor A.; Dowling, Kevin J., Methods and apparatus for illumination of liquids.
상세보기
Dowling, Kevin J., Methods and apparatus for providing luminance compensation.
상세보기
Lys,Ihor A.; Dowling,Kevin J.; Morgan,Frederick M., Methods and apparatus for providing power to lighting devices.
상세보기
Lys,Ihor A.; Dowling,Kevin J.; Morgan,Frederick M., Methods and apparatus for providing power to lighting devices.
상세보기
Emerson, David Todd, Methods for combining light emitting devices in a package and packages including combined light emitting devices.
상세보기
McKinney,Steven J.; Polak,Matthew C., Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems.
상세보기
Bhat, Jerome C.; Steigerwald, Daniel A.; Khare, Reena, Multi-chip semiconductor LED assembly.
상세보기
Bruning, Gert W., Multichip LED package with in-package quantitative and spectral sensing capability and digital signal output.
상세보기
Mueller, George G.; Lys, Ihor A., Multicolored LED lighting method and apparatus.
상세보기
Thomas, James; Gatesman, Gary; Lynd, David; Mosier, Jim; Warner, Bryan T., Multiple use LED light fixture.
상세보기
Zulim, Don; Lydecker, Stephen Haight; King, Leslie Charles; Hinnefeld, Jon Dale, Networked architectural lighting with customizable color accents.
상세보기
Ghanem Mohamed Sherif,CAX, Non-linear light-emitting load current control.
상세보기
Tashiro Yoshiharu (Tokyo JPX) Kasahara Kenichi (Tokyo JPX), Optical logic device with PNPN detection and laser diode output.
상세보기
Grossman M. Gary, Outdoor light.
상세보기
Gauci,Jason, Outdoor light mounting bracket.
상세보기
Lys, Ihor A.; Ducharme, Alfred, Packaged information systems.
상세보기
Melanson, John L., Power control system for current regulated light sources.
상세보기
Robert Pezzani FR, Power integrated circuit.
상세보기
Haville George D. (Santa Barbara CA), Power saving regulated light emitting diode circuit.
상세보기
Saito, Yutaka; Ozaki, Kouei; Narukawa, Toshiaki; Ota, Tsutomu, Power supply and LED lamp device.
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Hochstein Peter A. (2966 River Valley Dr. Troy MI 48098), Power supply for light emitting diode array.
상세보기
Godesa Ludvik,DEX, Power switch mutually locking arrangement.
상세보기
Fossum Eric R. ; Waligorski Gregory, Pulse-controlled light emitting diode source.
상세보기
Lackey, Amy, Recessed illuminated tile light.
상세보기
Yoshida, Kazufumi; Yamamoto, Junichiro; Sakamoto, Shizuka, Recessed lighting fixture.
상세보기
Yoshinobu, Masayuki; Higuchi, Kazunari; Moriyama, Takayoshi; Hashimoto, Sumio, Recessed lighting fixture.
상세보기
Negley, Gerald H.; van de Ven, Antony P., Semiconductor light emitting circuits including light emitting diodes and four layer semiconductor shunt devices.
상세보기
Zwanenburg,Michel J.; Gaines,James M., Sensing light emitted from multiple light sources.
상세보기
Newman, Jr., Robert C.; Taipale, Mark; Spira, Joel S., Single switch electronic dimming ballast.
상세보기
Theodore S. McMinn ; Dana A. Marshall ; Michael A. Hope ; Geoffrey O. Heberle, Smart laser diode array assembly.
상세보기
Lys, Ihor; Mueller, George G., Smart light bulb.
상세보기
Hutchison, Mike; Ovens, Kevin; Shinham, Tom, Solid state light with controlled light output.
상세보기
Yuan, Thomas; Keller, Bernd; Ibbetson, James; Tarsa, Eric; Negley, Gerald, Solid state lighting component.
상세보기
Negley, Gerald H.; van de Ven, Antony P., Solid state lighting devices including light mixtures.
상세보기
Kida Junzo (Hitachi JPX) Arita Hiroshi (Mito JPX) Kurosawa Yukio (Hitachi JPX), Solid-state switch.
상세보기
Motilal Kamal,CAX, Supplemental automotive lighting.
상세보기
Xu,Peng; Hontele,Bertrand Johan Edward; Kuppen,Jean Pierre, Supply assembly for a led lighting module.
상세보기
Czarnecki,Neil A., Switch assembly for an electrical panel.
상세보기
Robinson,Shane P.; Jungwirth,Paul; Toma,Ion, Switched constant current driving and control circuit.
상세보기
Yang,Ta Yung, Switching LED driver.
상세보기
Havlik,Steven M.; Horning,Ernest F., System, apparatus, and method for driving light emitting diodes in low voltage circuits.
상세보기
Berg-johansen, Roar, Systems and methods for controlling brightness of an avionics display.
상세보기
Blackwell,Michael K., Systems and methods for controlling programmable lighting systems.
상세보기
Smithson,Bradley D., Temperature compensated warning light.
상세보기
Kao, Ying Hung; Hsiao, Emily, Thermal module.
상세보기
Janning John Louis, Thermistor shunt for series wired light string.
상세보기
Coulter ; Jr. Joseph R. (Miami Springs FL), Toner applicator for electrophotographic microimagery.
상세보기
Engelbrecht Jan C. (43 3rd Street Linden ; Johannesburg ; Transvaal ZAX), Trolley.
상세보기
Peterson Steven C. (Pocatello ID), Uniform intensity led driver circuit.
상세보기
Subramanian Muthu ; Chin Chang ; Gert Bruning, White LED luminary light control system.
상세보기
Kane, Paul J.; Miller, Michael E.; Cok, Ronald S., White-light electro-luminescent device with improved efficiency.
상세보기
Sandell,Donald R., Yard light.
상세보기
Sandell,Donald R., Yard light with dark sky shade.
상세보기
Lecluze Michel (1009 ; rue du Parc Industriel St-Jean-Chrysostome ; Quebec CAX G6Z 1C5 ), light projector.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Solid state lighting apparatus and circuits including LED segments configured for targeted spectral power distribution and methods of operating the same 원문보기

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대표청구항 ▼

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연합인증

Solid state lighting apparatus and circuits including LED segments configured for targeted spectral power distribution and methods of operating the same 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허에 인용된 특허 (163)

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