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公开(公告)号：US11486562B2
公开(公告)日：2022-11-01
申请号：US17028926
申请日：2020-09-22
Applicant: LUMILEDS LLC
Inventor： Hisashi Masui , Oleg Shchekin , Ken Shimizu , Marcel Bohmer , Frank Jin , Jyoti Bhardwaj
Abstract: Systems for apparatuses formed of light emitting devices. Solutions for controlling the off-state appearance of lighting system designs is disclosed. Thermochromic materials are selected in accordance with a desired off-state of an LED device. The thermochromic materials are applied to a structure that is in a light path of light emitted by the LED device. In the off-state the LED device produces a desired off-state colored appearance. When the LED device is in the on-state, the thermochromic materials heat up and become more and more transparent. The light emitted from the device in its on-state does not suffer from color shifting due to the presence of the thermochromic materials. Furthermore, light emitted from the LED device in its on-state does not suffer from attenuation due to the presence of the thermochromic materials. Techniques to select and position thermochromic materials in or around LED apparatuses are presented.
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公开(公告)号：US20230045625A1
公开(公告)日：2023-02-09
申请号：US17964194
申请日：2022-10-12
Applicant: LUMILEDS LLC
Inventor： Hisashi Masui , Oleg Shchekin , Ken Shimizu , Marcel Bohmer , Frank Jin , Jyoti Bhardwaj
Abstract: Systems for apparatuses formed of light emitting devices. Solutions for controlling the off-state appearance of lighting system designs is disclosed. Thermochromic materials are selected in accordance with a desired off-state of an LED device. The thermochromic materials are applied to a structure that is in a light path of light emitted by the LED device. In the off-state the LED device produces a desired off-state colored appearance. When the LED device is in the on-state, the thermochromic materials heat up and become more and more transparent. The light emitted from the device in its on-state does not suffer from color shifting due to the presence of the thermochromic materials. Furthermore, light emitted from the LED device in its on-state does not suffer from attenuation due to the presence of the thermochromic materials. Techniques to select and position thermochromic materials in or around LED apparatuses are presented.
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公开(公告)号：US11994285B2
公开(公告)日：2024-05-28
申请号：US17964194
申请日：2022-10-12
Applicant: LUMILEDS LLC
Inventor： Hisashi Masui , Oleg Shchekin , Ken Shimizu , Marcel Bohmer , Frank Jin , Jyoti Bhardwaj
IPC: F21V9/40 , C09B67/02 , F21K9/00 , F21K9/20 , F21V14/00 , G02B27/09 , H01L33/44 , H01L33/50 , H01L33/64 , H05B45/28
CPC classification number: F21V9/40 , C09B67/0097 , F21K9/00 , F21K9/20 , F21V14/003 , G02B27/0955 , H01L33/44 , H01L33/502 , H01L33/641 , H05B45/28 , H01L33/50
Abstract: Systems for apparatuses formed of light emitting devices. Solutions for controlling the off-state appearance of lighting system designs is disclosed. Thermochromic materials are selected in accordance with a desired off-state of an LED device. The thermochromic materials are applied to a structure that is in a light path of light emitted by the LED device. In the off-state the LED device produces a desired off-state colored appearance. When the LED device is in the on-state, the thermochromic materials heat up and become more and more transparent. The light emitted from the device in its on-state does not suffer from color shifting due to the presence of the thermochromic materials. Furthermore, light emitted from the LED device in its on-state does not suffer from attenuation due to the presence of the thermochromic materials. Techniques to select and position thermochromic materials in or around LED apparatuses are presented.
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公开(公告)号：US11563150B2
公开(公告)日：2023-01-24
申请号：US17129279
申请日：2020-12-21
Applicant: LUMILEDS LLC
Inventor： Michael Camras , Jyoti Bhardwaj , Peter Josef Schmidt , Niels Jeroen Van Der Veen
Abstract: An inorganic coating may be applied to bond optically scattering particles or components. Optically scattering particles bonded via the inorganic coating may form a three dimensional film which can receive a light emission, convert, and emit the light emission with one or more changed properties. The inorganic coating may be deposited using a low-pressure deposition technique such as an atomic layer deposition (ALD) technique. Two or more components, such as an LED and a ceramic phosphor layer may be bonded together by depositing an inorganic coating using the ALD technique.
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公开(公告)号：US11374155B2
公开(公告)日：2022-06-28
申请号：US16876869
申请日：2020-05-18
Applicant: Lumileds LLC
Inventor： Frederic Stephane Diana , Erno Fancsali , Thierry De Smet , Gregory Donald Guth , Yourii Martynov , Oleg B. Shchekin , Jyoti Bhardwaj
Abstract: A method to make light-emitting diode (LED) units include arranging LEDs in a pattern, forming an optically transparent spacer layer over the LEDs, forming an optically reflective layer over the LEDs, and singulating the LEDs into LED units. The method may further include, after forming the optically transparent spacer layer and before singulating the LEDs, forming a secondary light-emitting layer that conforms to the LEDs, cutting the LEDs to form LED groups having a same arrangement, spacing the LED groups on a support, and forming the optically reflective layer in spaces between the LED groups.
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公开(公告)号：US10693048B2
公开(公告)日：2020-06-23
申请号：US15765678
申请日：2016-09-02
Applicant: Lumileds LLC
Inventor： Frederic S. Diana , Emo Fancsali , Thierry De Smet , Gregory Guth , Yourii Martynov , Oleg B. Shchekin , Jyoti Bhardwaj
Abstract: A method to make light-emitting diode (LED) units include arranging LEDs in a pattern, forming an optically transparent spacer layer over the LEDs, forming an optically reflective layer over the LEDs, and singulating the LEDs into LED units. The method may further include, after forming the optically transparent spacer layer and before singulating the LEDs, forming a secondary light-emitting layer that conforms to the LEDs, cutting the LEDs to form LED groups having a same arrangement, spacing the LED groups on a support, and forming the optically reflective layer in spaces between the LED groups.
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公开(公告)号：US11984540B2
公开(公告)日：2024-05-14
申请号：US18085317
申请日：2022-12-20
Applicant: LUMILEDS LLC
Inventor： Michael Camras , Jyoti Bhardwaj , Peter Josef Schmidt , Niels Jeroen Van Der Veen
CPC classification number: H01L33/44 , C09K11/02 , C23C16/40 , C23C16/45525 , H01L33/005 , H01L33/505 , H01S5/0283 , H01L2933/0025 , H01S5/028
Abstract: An inorganic coating may be applied to bond optically scattering particles or components. Optically scattering particles bonded via the inorganic coating may form a three dimensional film which can receive a light emission, convert, and emit the light emission with one or more changed properties. The inorganic coating may be deposited using a low-pressure deposition technique such as an atomic layer deposition (ALD) technique. Two or more components, such as an LED and a ceramic phosphor layer may be bonded together by depositing an inorganic coating using the ALD technique.
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公开(公告)号：US20210291724A1
公开(公告)日：2021-09-23
申请号：US17338362
申请日：2021-06-03
Applicant: Lumileds LLC
Inventor： Ronald Johannes Bonne , Jyoti Bhardwaj
Abstract: A vehicle headlamp system includes a vehicle supported power and control system including a data bus. A sensor module can be connected to the data bus to provide information related to environmental conditions or information relating to presence and position of other vehicles and pedestrians. A separate headlamp controller can be connected to the vehicle supported power and control system and the sensor module through the bus. The headlamp controller can include an image frame buffer that can refresh held images at greater than 30 z speed. An active LED pixel array can be connected to the headlamp controller to project light according to a pattern and intensity defined by the image held in the image frame buffer and a standby image buffer can be connected to the image frame buffer to hold a default image.
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公开(公告)号：US10886437B2
公开(公告)日：2021-01-05
申请号：US15802273
申请日：2017-11-02
Applicant: Lumileds LLC
Inventor： Michael Camras , Jyoti Bhardwaj , Peter J. Schmidt , Niels Jeroen Van Der Veen
Abstract: An inorganic coating may be applied to bond optically scattering particles or components. Optically scattering particles bonded via the inorganic coating may form a three dimensional film which can receive a light emission, convert, and emit the light emission with one or more changed properties. The inorganic coating may be deposited using a low-pressure deposition technique such as an atomic layer deposition (ALD) technique. Two or more components, such as an LED and a ceramic phosphor layer may be bonded together by depositing an inorganic coating using the ALD technique.
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公开(公告)号：US10797206B2
公开(公告)日：2020-10-06
申请号：US15747076
申请日：2016-06-28
Applicant: Lumileds LLC
Inventor： Hisashi Masui , Oleg Shchekin , Ken Shimizu , Marcel Bohmer , Frank Jin , Jyoti Bhardwaj
IPC: H01L33/50 , H01L33/44 , F21V14/00 , F21K9/00 , F21K9/20 , H05B45/20 , H05B47/10 , G02B27/09 , F21V9/40
Abstract: Systems for apparatuses formed of light emitting devices. Solutions for controlling the off-state appearance of lighting system designs is disclosed. Thermochromic materials are selected in accordance with a desired off-state of an LED device. The thermochromic materials are applied to a structure that is in a light path of light emitted by the LED device. In the off-state the LED device produces a desired off-state colored appearance. When the LED device is in the on-state, the thermochromic materials heat up and become more and more transparent. The light emitted from the device in its on-state does not suffer from color shifting due to the presence of the thermochromic materials. Furthermore, light emitted from the LED device in its on-state does not suffer from attenuation due to the presence of the thermochromic materials. Techniques to select and position thermochromic materials in or around LED apparatuses are presented.
