Patents by Inventor Ravidasa Hegde
Ravidasa Hegde has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11317492Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: GrantFiled: March 25, 2021Date of Patent: April 26, 2022Assignee: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
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Patent number: 11106251Abstract: A method and system of controlling lighting that includes displaying on a graphic user interface of a mobile device a grid of light functions. The grid of light functions including a plurality of selectable light function settings. The method may further include selecting a light function setting from the selectable light function settings by traversing a cursor over the light function setting that is selected, wherein motion of the cursor is controlled by motion of the mobile device that includes a motion sensor for correlating said motion of the mobile device to said traversing of the cursor. The method may also include transmitting a control signal for the light function setting that is selected from said mobile device to a luminaire, wherein the luminaire projects light with properties consistent with said light function setting simultaneously with the cursor being present on said light function that is selected.Type: GrantFiled: July 26, 2017Date of Patent: August 31, 2021Assignee: LEDANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde
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Patent number: 11102861Abstract: A driver electronics is provided for powering a light engine including light emitting diodes (LEDs). The driver electronics arrangement includes at least two drivers that alternate power to a light engine. By alternating between the two drivers to power the light engine, the service life of the luminaire is increased. In one embodiment, the driver electronics includes at least two drivers, a light engine and a control relay block. The control relay block controls the at least two drivers so that only one of the drivers is powering the light engine at a time.Type: GrantFiled: May 21, 2020Date of Patent: August 24, 2021Assignee: LEDVANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde, Anil Jeswani
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Publication number: 20210207778Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: ApplicationFiled: March 25, 2021Publication date: July 8, 2021Inventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
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Patent number: 11019705Abstract: A lighting method that includes providing a lamp having a light source, a controller and at least one gyroscopic sensor; and measuring at least one type of movement of the lamp with at least one gyroscopic sensor. The method may further include converting with the controller the at least one type of movement of the lamp measured by the at least one gyroscopic sensor to a characteristic of light; and projecting light from the light source having the characteristic of light converted by the controller correlated to the movement of the lamp measured by the gyroscopic sensor.Type: GrantFiled: March 13, 2020Date of Patent: May 25, 2021Assignee: LEDVANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde
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Patent number: 10982821Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: GrantFiled: April 30, 2020Date of Patent: April 20, 2021Assignee: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
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Patent number: 10841997Abstract: A light emitting element control circuit and power supply for a solid state lamp includes an electrical control circuit controller which enables the operation of a solid state lamp in three distinct modes, which allows the user significant flexibility in operation of the lamp. It enables the user to operate the lamp with a fixed emission spectrum but with intensity control (Mode I); or with discrete settings of blue only or red only or a fixed ratio of the two (Mode II); or an on-demand ratio of blue to red emission whereby the user can operate the lamp with any arbitrary ratio of blue to red for example to meet different spectral requirements of, for example, different phases of plant growth (Mode III).Type: GrantFiled: September 13, 2017Date of Patent: November 17, 2020Assignee: LEDVANCE LLCInventors: Ravidasa Hegde, Arunava Dutta, Janet A. Milliez, Jason J. Li
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Patent number: 10757866Abstract: A lamp including a body for containing a light engine that includes at least a first and second string of said light emitters. The lamp includes driver electronics including an AC-DC switching power supply section of a circuit including a first potentiometer for adjusting total current to the light engine; and a linear topology LED string current control section of the circuit including an operational amplifier controlled by a second potentiometer to operate a field effect transistor (FET) in the linear portion of the FETs operation range to adjust a percentage of the total current to the first and second string of the light emitters. Adjusting the total current adjusts the photosynthetic photon flux (PPF) of light emitted by the lamp. Adjusting the percentage of the total current to the first and second string of the light emitters adjusts the spectral power distribution of light being emitted by the lamp.Type: GrantFiled: March 30, 2018Date of Patent: September 1, 2020Assignee: LEDVANCE LLCInventors: Ravidasa Hegde, Arunava Dutta, Nilesh Patel
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Publication number: 20200263840Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: ApplicationFiled: April 30, 2020Publication date: August 20, 2020Applicant: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
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Publication number: 20200214110Abstract: A lighting method that includes providing a lamp having a light source, a controller and at least one gyroscopic sensor; and measuring at least one type of movement of the lamp with at least one gyroscopic sensor. The method may further include converting with the controller the at least one type of movement of the lamp measured by the at least one gyroscopic sensor to a characteristic of light; and projecting light from the light source having the characteristic of light converted by the controller correlated to the movement of the lamp measured by the gyroscopic sensor.Type: ApplicationFiled: March 13, 2020Publication date: July 2, 2020Applicant: LEDVANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde
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Patent number: 10683969Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: GrantFiled: May 7, 2018Date of Patent: June 16, 2020Assignee: LEDVANCE LLCInventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
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Patent number: 10624175Abstract: A lighting method that includes providing a lamp having a light source, a controller and at least one gyroscopic sensor; and measuring at least one type of movement of the lamp with at least one gyroscopic sensor. The method may further include converting with the controller the at least one type of movement of the lamp measured by the at least one gyroscopic sensor to a characteristic of light; and projecting light from the light source having the characteristic of light converted by the controller correlated to the movement of the lamp measured by the gyroscopic sensor.Type: GrantFiled: September 15, 2017Date of Patent: April 14, 2020Assignee: LEDVANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde
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Publication number: 20190383447Abstract: A lamp is provided that includes a housing including a light projecting end and a base having an electrical connector for connection with a lamp fixture; and a light engine including light emitting diodes (LEDs) that is positioned at the light projecting end of the housing. A driver assembly may be in electrical communication with the electrical connector of the base of the housing. In some embodiments, an inductive connection is positioned between the driver assembly and the light engine. The inductive connection may include a transmission coil in the driver assembly, and a receiver coil in the light engine that provides for the transfer of energy magnetically from the driver assembly to the light engine.Type: ApplicationFiled: May 15, 2019Publication date: December 19, 2019Applicant: LEDVANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde, Alberto Pierotti
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Patent number: 10473273Abstract: A lamp is provided that includes a housing including a light projecting end and a base having an electrical connector for connection with a lamp fixture; and a light engine including light emitting diodes (LEDs) that is positioned at the light projecting end of the housing. A driver assembly may be in electrical communication with the electrical connector of the base of the housing. In some embodiments, an inductive connection is positioned between the driver assembly and the light engine. The inductive connection may include a transmission coil in the driver assembly, and a receiver coil in the light engine that provides for the transfer of energy magnetically from the driver assembly to the light engine.Type: GrantFiled: June 15, 2018Date of Patent: November 12, 2019Assignee: LEDVANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde, Alberto Pierotti
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Publication number: 20190338895Abstract: A lamp is provided that can have at least one interface on the lamp body for a selectable lumens and selectable correlated color temperature (CCT). In one embodiment, the lamp design includes a housing having a downlight geometry and a light engine including at least one string of light emitting diodes (LEDs), in which the light engine is position to emit light through a light emission end of the housing having the downlight geometry. The lamp also includes at least one first switch for selecting at least one lumen setting for the light emitted by the light engine; and at least one second switch for selecting at least one correlated color temperature. The first and second switch are mounted to the housing.Type: ApplicationFiled: May 7, 2018Publication date: November 7, 2019Inventors: Anil Jeswani, Astrid van Breda, Ravidasa Hegde, Soumya Kanta Ray
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Publication number: 20190297784Abstract: A lamp including a body for containing a light engine that includes at least a first and second string of said light emitters. The lamp includes driver electronics including an AC-DC switching power supply section of a circuit including a first potentiometer for adjusting total current to the light engine; and a linear topology LED string current control section of the circuit including an operational amplifier controlled by a second potentiometer to operate a field effect transistor (FET) in the linear portion of the FETs operation range to adjust a percentage of the total current to the first and second string of the light emitters. Adjusting the total current adjusts the photosynthetic photon flux (PPF) of light emitted by the lamp. Adjusting the percentage of the total current to the first and second string of the light emitters adjusts the spectral power distribution of light being emitted by the lamp.Type: ApplicationFiled: March 30, 2018Publication date: October 3, 2019Inventors: Ravidasa Hegde, Arunava Dutta, Nilesh Patel
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Patent number: 10383190Abstract: Systems to control light color temperature during dimming are disclosed. A power supply drives a load include a first light source (e.g., to emit a first color of light) and a second light source (e.g., to emit a second color of light). The power supply includes a front end circuit, a converter circuit, and a load current control circuit. The front end circuit receives an input voltage from a dimmer and generates a direct current (DC) voltage based on the received input voltage. The converter circuit generates a first voltage to drive the first light source and a second voltage to drive the second light source. The load current control circuit controls the current flowing through the second light source based on a light control setting configured in the dimmer.Type: GrantFiled: February 5, 2016Date of Patent: August 13, 2019Assignee: LEDVANCE LLCInventors: Ravidasa Hegde, Khounthavy Phasay
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Patent number: 10278252Abstract: A solid-state circadian rhythm lamp and luminaire and related control techniques are disclosed. The lamp or luminaire may have: (1) a night/pre-sleep emissions mode in which it emits light having a correlated color temperature (CCT) of about 1,800-2,300 K, the spectral power ratio of blue light (400-495 nm) being such that it constitutes about 10% or less of the total light emitted; (2) a day/wakeup emissions mode in which it emits light having a CCT of about 5,000-8,000 K, the spectral power ratio of blue light being such that it constitutes about 30% or more of the total light emitted; and/or (3) a general lighting mode in which it produces a combined light output having a CCT of about 2,500-5,000 K. The driver may support emissions mode changing based on hysteresis relating to a lighting switch associated with the lamp or luminaire.Type: GrantFiled: June 15, 2018Date of Patent: April 30, 2019Inventors: Ming Li, Arunava Dutta, Anne Janet Milliez, Ravidasa Hegde, Vidisha Gupta, Philip Gerard Rioux
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Publication number: 20190090327Abstract: A lighting method that includes providing a lamp having a light source, a controller and at least one gyroscopic sensor; and measuring at least one type of movement of the lamp with at least one gyroscopic sensor. The method may further include converting with the controller the at least one type of movement of the lamp measured by the at least one gyroscopic sensor to a characteristic of light; and projecting light from the light source having the characteristic of light converted by the controller correlated to the movement of the lamp measured by the gyroscopic sensor.Type: ApplicationFiled: September 15, 2017Publication date: March 21, 2019Inventors: Valeriy Zolotykh, Ravidasa Hegde
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Publication number: 20190034043Abstract: A method and system of controlling lighting that includes displaying on a graphic user interface of a mobile device a grid of light functions. The grid of light functions including a plurality of selectable light function settings. The method may further include selecting a light function setting from the selectable light function settings by traversing a cursor over the light function setting that is selected, wherein motion of the cursor is controlled by motion of the mobile device that includes a motion sensor for correlating said motion of the mobile device to said traversing of the cursor. The method may also include transmitting a control signal for the light function setting that is selected from said mobile device to a luminaire, wherein the luminaire projects light with properties consistent with said light function setting simultaneously with the cursor being present on said light function that is selected.Type: ApplicationFiled: July 26, 2017Publication date: January 31, 2019Applicant: LEDVANCE LLCInventors: Valeriy Zolotykh, Ravidasa Hegde