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公开(公告)号：US11936973B2
公开(公告)日：2024-03-19
申请号：US17732219
申请日：2022-04-28
Applicant: Lumileds LLC
Inventor： Arjen Gerben Van der Sijde , Erno Fancsali , Nicola Bettina Pfeffer , Pieter Johannes Quintus van Voorst Vader
CPC classification number: H04N23/56 , G01B11/22 , G06T7/50 , H04N23/71 , H05B45/32 , G06T2207/10048
Abstract: The invention describes an infrared imaging assembly (1) for capturing an infrared image (M0, M1) of a scene (S), comprising an infrared-sensitive image sensor (14); an irradiator (10) comprising an array of individually addressable infrared-emitting LEDs, wherein each infrared-emitting LED is arranged to illuminate a scene region (S1, . . . , S9); a driver (11) configured to actuate the infrared irradiator (10) by applying a switching pulse train (T1, . . . , T9) to each infrared-emitting LED; an image analysis module (13) configured to analyse a preliminary infrared image (M0) to determine the required exposure levels (130) for each of a plurality of image regions (R1, . . . , R9); and a pulse train adjusting unit (12) configured to adjust the duration (L1, . . . , L9) of a switching pulse train (T1, . . . , T9) according to the required exposure levels (130). The invention also described a method of generating a depth map (D) for a scene (S); a depth map generator comprising an embodiment of the inventive infrared imaging assembly (1); and a camera comprising such a depth map generator (2).
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公开(公告)号：US11531213B2
公开(公告)日：2022-12-20
申请号：US17129529
申请日：2020-12-21
Applicant: Lumileds LLC
Inventor： Charles André Schrama , Erno Fancsali
IPC: G02B30/33 , H01L25/075 , H01L33/58 , G09G3/32 , H04N13/302
Abstract: An apparatus and method for displaying an image are disclosed. The apparatus includes independently-controllable microLED unit cells including sets of microLEDs each emitting light and at least one lens to control an emission angle and emission profile of the light emitted by the microLED unit cells. A display controller controls an intensity distribution of the microLED unit cells in accordance with a video data signal such that a first portion of the emitted light is emitted at a first emission angle with a first emission profile and a second portion of the emitted light is emitted at a second emission angle with a second emission profile. The first and second light portions form three-dimensional stereoscopic images.
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公开(公告)号：US10930828B2
公开(公告)日：2021-02-23
申请号：US16336408
申请日：2017-09-15
Applicant: Lumileds LLC
Inventor： Varun Dev Kakkar , Emanuel Nicolaas Hermanus Johannes Stassar , Erno Fancsali , Chunxia Feng , Rob Jacques Paul Engelen
IPC: H01L33/58 , F21V5/04 , F21Y107/40 , F21Y115/10 , G02B27/09
Abstract: A light source includes a light-emitting diode or device (LED) and an optic mounted over the LED. The LED emits a first radiation pattern that is non-rotationally symmetric about a first axis. The optic collects the first radiation pattern and projects a second radiation pattern that is rotational symmetric about a second axis and has a peak intensity that is angled from the second axis.
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公开(公告)号：US11223814B2
公开(公告)日：2022-01-11
申请号：US16694077
申请日：2019-11-25
Applicant: Lumileds LLC
IPC: H04N5/225 , H04N13/218 , H04N13/254 , H04N13/296
Abstract: In an imaging system, a lens can redirect light from an illuminated portion of a scene toward a one-dimensional focus that is positioned in a focal plane of the lens and is elongated in an imaging dimension. The redirected light can include first light that emerges from the lens and second light that emerges from the lens. A reflector positioned adjacent the lens can reflect the second light to form third light. A linear array of detector pixels can extend along the imaging dimension and can be positioned at the focal plane proximate the one-dimensional focus to receive the first light from the lens and receive the third light from the reflector. A processor can obtain one-dimensional image data from the detector pixels for sequentially illuminated portions of the scene and construct data representing an image of the full scene from the one-dimensional image data.
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公开(公告)号：US10996516B1
公开(公告)日：2021-05-04
申请号：US16721637
申请日：2019-12-19
Applicant: Lumileds LLC
Inventor： Mehdi Aas , Nicola Bettina Pfeffer , Arjen Gerben Van der Sijde , Erno Fancsali
IPC: G02F1/13357 , F21V8/00 , G02F1/1333
Abstract: A backlight apparatus can include a light emitting element configured to emit visible light. The backlight apparatus can include a polarizing device including a prism situated to receive the visible light and to polarize the visible light to generate polarized light. The backlight apparatus can include a light guide panel configured to receive the polarized light at an input surface facing the polarizing device and to distribute the polarized light to a major surface of the light guide panel facing a display screen.
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Patent Agency Ranking
公开(公告)号：US20230013035A1
公开(公告)日：2023-01-19
申请号：US17785827
申请日：2020-12-21
Applicant: Lumileds LLC
Abstract: An apparatus and method for displaying an image are disclosed. The apparatus includes microLED unit cells including sets of microLEDs each emitting light and at least one lens to control an emission angle and emission profile of the light emitted by the microLED unit cells. A display controller controls an intensity distribution of the microLED unit cells in accordance with first and second video data signals such that a first portion of the emitted light is emitted at a first emission angle with a first emission profile at a first observation angle relative to a display and a second portion of the emitted light is emitted at a second emission angle with a second emission profile at a second observation angle relative to the display. The first and second light portions form unrelated images.
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公开(公告)号：US11417796B2
公开(公告)日：2022-08-16
申请号：US16701867
申请日：2019-12-03
Applicant: Lumileds LLC
Inventor： Mehdi Aas , Erno Fancsali , Frans Hubert Konijn , Arjen Gerben Van der Sijde , Nicola Bettina Pfeffer
IPC: H01L33/10 , H01L33/46 , H01L33/60 , H01L25/075 , H01L33/00
Abstract: A light-emitting apparatus can include a reflective cavity that can reflect visible light within the reflective cavity. The reflective cavity can allow the reflected visible light to exit the reflective cavity only at one or more specified emission locations. A visible light-emitting diode can emit visible light into the reflective cavity. An infrared light-emitting diode can emit infrared light into the reflective cavity. A lens can angularly redirect infrared light and visible light that exit the cavity through the one or more emission locations. The reflective cavity can be formed by surfaces at least partially coated with a coating that is reflective for visible light. The coated surfaces can include a circuit board that supports the light-emitting diodes, an incident surface of the lens, and an extension portion of the lens that extends from a flange to the incident surface of the lens.
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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：US11350022B2
公开(公告)日：2022-05-31
申请号：US16999401
申请日：2020-08-21
Applicant: Lumileds LLC
Inventor： Arjen Gerben Van Der Sijde , Erno Fancsali , Nicola Bettina Pfeffer , Pieter Johannes Quintus van Voorst Vader
Abstract: The invention describes an infrared imaging assembly (1) for capturing an infrared image (M0, M1) of a scene (S), comprising an infrared-sensitive image sensor (14); an irradiator (10) comprising an array of individually addressable infrared-emitting LEDs, wherein each infrared-emitting LED is arranged to illuminate a scene region (S1, . . . , S9); a driver (11) configured to actuate the infrared irradiator (10) by applying a switching pulse train (T1, . . . , T9) to each infrared-emitting LED; an image analysis module (13) configured to analyse a preliminary infrared image (M0) to determine the required exposure levels (130) for each of a plurality of image regions (R1, . . . , R9); and a pulse train adjusting unit (12) configured to adjust the duration (L1, . . . , L9) of a switching pulse train (T1, . . . , T9) according to the required exposure levels (130). The invention also described a method of generating a depth map (D) for a scene (S); a depth map generator comprising an embodiment of the inventive infrared imaging assembly (1); and a camera comprising such a depth map generator (2).
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公开(公告)号：US11294239B2
公开(公告)日：2022-04-05
申请号：US17217814
申请日：2021-03-30
Applicant: Lumileds LLC
Inventor： Mehdi Aas , Nicola Bettina Pfeffer , Arjen Gerben Van der Sijde , Erno Fancsali
IPC: G02F1/13357 , F21V8/00 , G02F1/1333
Abstract: A backlight apparatus can include a light emitting element configured to emit visible light. The backlight apparatus can include a polarizing device including a prism situated to receive the visible light and to polarize the visible light to generate polarized light. The backlight apparatus can include a light guide panel configured to receive the polarized light at an input surface facing the polarizing device and to distribute the polarized light to a major surface of the light guide panel facing a display screen.
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