公开(公告)号：US11959800B2

公开(公告)日：2024-04-16

申请号：US17873792

申请日：2022-07-26

Applicant: Lumileds LLC

Inventor： Erik Charles Nelson ,  Isaac Wildeson ,  Parijat Deb ,  Kenneth Vampola

IPC: G01J1/32 ,  B60Q1/00 ,  B60Q1/14 ,  G01J1/04 ,  G01J1/42 ,  H05B45/12 ,  H05B45/44 ,  H05B47/11

CPC classification number: G01J1/32 ,  B60Q1/0023 ,  B60Q1/1423 ,  B60Q1/143 ,  G01J1/0488 ,  G01J1/4204 ,  G01J1/4228 ,  H05B45/12 ,  H05B45/44 ,  H05B47/11 ,  B60Q2300/056 ,  B60Q2300/42 ,  Y02B20/40

Abstract: An automotive headlight is disclosed including: an optical unit including a plurality of optical elements, each optical element having a different central direction; a segmented light-emitting diode (LED) chip including a plurality of LEDs that are separated by trenches formed on the segmented LED chip and arranged in a plurality of sections, each section being aligned with a different respective optical element, and each section including at least one first LED and at least one second LED; and a controller configured to: apply a forward bias to each of the first LEDs, apply a reverse bias to each of the second LEDs, and change a brightness of the first LEDs in any section based on a signal generated by the second LED in that section.

公开(公告)号：US20230349753A1

公开(公告)日：2023-11-02

申请号：US18220774

申请日：2023-07-11

Applicant: Lutron Technology Company LLC

Inventor： Kuo-Lih Chang ,  Mickey Malone ,  Horace C. Ho

IPC: G01J1/02 ,  G01J3/46 ,  G01J3/50 ,  G01J3/02 ,  G01J1/32 ,  H05B45/20 ,  H05B45/46 ,  H05B47/19

CPC classification number: G01J1/0252 ,  G01J3/465 ,  G01J3/505 ,  G01J3/0286 ,  G01J1/32 ,  H05B45/20 ,  H05B45/46 ,  H05B47/19 ,  G01J2001/444

Abstract: An illumination device comprises one or more emitter modules having improved thermal and electrical characteristics. According to one embodiment, each emitter module comprises a plurality of light emitting diodes (LEDs) configured for producing illumination for the illumination device, one or more photodetectors configured for detecting the illumination produced by the plurality of LEDs, a substrate upon which the plurality of LEDs and the one or more photodetectors are mounted, wherein the substrate is configured to provide a relatively high thermal impedance in the lateral direction, and a relatively low thermal impedance in the vertical direction, and a primary optics structure coupled to the substrate for encapsulating the plurality of LEDs and the one or more photodetectors within the primary optics structure.

公开(公告)号：US20230157218A1

公开(公告)日：2023-05-25

申请号：US18094568

申请日：2023-01-09

Applicant: Nacho LED LLC

Inventor： Stephen P. Adams ,  Brad LaMarche

IPC: A01G7/04 ,  A01G9/20 ,  F21V5/00 ,  G01J1/42 ,  G01J1/32 ,  H05B45/20 ,  H05B45/46 ,  H05B47/18 ,  H05B47/19 ,  H05B47/185 ,  H05B45/3725

CPC classification number: A01G7/045 ,  A01G9/20 ,  F21V5/007 ,  G01J1/4204 ,  G01J1/32 ,  H05B45/20 ,  H05B45/46 ,  H05B47/18 ,  H05B47/19 ,  H05B47/185 ,  H05B45/3725 ,  F21V19/0015

Abstract: A method and apparatus for an adaptable vehicle light fixture is provided to activate varying light distribution patterns based upon preconfigured operation of trigger and/or power wires. One or more trigger and/or power wires connected to one or more vehicle light fixtures are preconfigured through wired and/or wireless programming to generate specified light distribution patterns that are responsive to the preconfigurations during manual operation. Wireless preconfiguration includes the use of a handheld magnetic device or smartphone. Wired preconfiguration includes the use of a vehicle-based controller area network (CAN) bus. Any preconfigured operation may be changed at any time by the user by programmably changing the preconfiguration.

公开(公告)号：US11457206B2

公开(公告)日：2022-09-27

申请号：US17245090

申请日：2021-04-30

Applicant: Ignis Innovation Inc.

Inventor： Vyacheslav Shyshkin ,  Adam Saechao

IPC: G09G3/00 ,  G09G3/3225 ,  H04N17/04 ,  G01J1/02 ,  G01J1/32

Abstract: What is disclosed are systems and methods of optical correction for pixel evaluation and correction for active matrix light emitting diode device (AMOLED) and other emissive displays. Optical correction for correcting for non-homogeneity of a display panel uses sparse display test patterns in conjunction with a defocused camera as the measurement device to avoid aliasing (moiré) of the pixels of the display in the captured images.

公开(公告)号：US20220167479A1

公开(公告)日：2022-05-26

申请号：US17669976

申请日：2022-02-11

Applicant: Lutron Technology Company LLC

Inventor： Horace C. Ho ,  Jason E. Lewis ,  David J. Knapp

IPC: H05B47/10 ,  G01J3/46 ,  G01J3/50 ,  G01J1/02 ,  G01J3/02 ,  H05B45/22 ,  H05B45/24 ,  H05B47/24 ,  H05B47/21 ,  H05B45/12 ,  G01J1/32 ,  G01J1/42 ,  G01R31/44

Abstract: An illumination device and method are provided herein for calibrating individual LEDs in the illumination device to obtain a desired luminous flux and a desired chromaticity of the device over changes in drive current, temperature, and over time as the LEDs age. The calibration method may include subjecting the illumination device to a first ambient temperature, successively applying at least three different drive currents to a first LED to produce illumination at three or more different levels of brightness, obtaining a plurality of optical measurements from the illumination produced by the first LED at each of the at least three different drive currents, obtaining a plurality of electrical measurements from the photodetector and storing results of the obtaining steps within the illumination device to calibrate the first LED at the first ambient temperature. The plurality of optical measurements may generally include luminous flux and chromaticity, the plurality of electrical measurements may generally include induced photocurrents and forward voltages, and the calibration method steps may be repeated for each LED included within the illumination device and upon subjecting the illumination device to a second ambient temperature.

公开(公告)号：US11333308B2

公开(公告)日：2022-05-17

申请号：US17179312

申请日：2021-02-18

Applicant: Lumisys, Inc.

Inventor： James R. Scapa ,  David L. Simon ,  John Ivey

IPC: H05B45/10 ,  H05B45/58 ,  H05B47/11 ,  F21K9/278 ,  F21V23/04 ,  G01J1/32 ,  H05B45/14 ,  H05B45/357 ,  H05B45/12 ,  F21Y103/10 ,  F21Y115/10 ,  G01J1/42 ,  F21S2/00 ,  F21S8/00 ,  F21S8/04 ,  F21V23/00 ,  F21K9/272

Abstract: An LED-based light includes one or more LEDs, a sensor arranged to detect a brightness level in an area resulting from the combination of light emitted by the LEDs with light from at least one ambient light source other than the LEDs, and operable to output a signal corresponding to the detected brightness level, a controller operable to regulate an amount of power provided to the LEDs in response to the signal, a light transmitting housing for the LEDs, the sensor and the controller and a connector shaped for connection with a light socket disposed at an end of the housing.

公开(公告)号：US11252805B2

公开(公告)日：2022-02-15

申请号：US16819497

申请日：2020-03-16

Applicant: Lutron Technology Company LLC

Inventor： Horace C. Ho ,  Jason E. Lewis ,  David J. Knapp

IPC: H05B47/10 ,  G01J1/32 ,  G01J3/46 ,  G01J3/50 ,  G01J1/02 ,  G01J3/02 ,  H05B45/22 ,  H05B45/24 ,  H05B47/24 ,  H05B47/21 ,  H05B45/12 ,  G01J1/42 ,  G01R31/44 ,  G01J1/44 ,  H05B47/105 ,  H05B45/18

Abstract: An illumination device and method is provided herein for calibrating individual LEDs in the illumination device, so as to obtain a desired luminous flux and a desired chromaticity of the device over changes in drive current, temperature, and over time as the LEDs age. The calibration method may include subjecting the illumination device to a first ambient temperature, successively applying at least three different drive currents to a first LED to produce illumination at three or more different levels of brightness, obtaining a plurality of optical measurements from the illumination produced by the first LED at each of the at least three different drive currents, obtaining a plurality of electrical measurements from the photodetector and storing results of the obtaining steps within the illumination device to calibrate the first LED at the first ambient temperature. The plurality of optical measurements may generally include luminous flux and chromaticity, the plurality of electrical measurements may generally include induced photocurrents and forward voltages, and the calibration method steps may be repeated for each LED included within the illumination device and upon subjecting the illumination device to a second ambient temperature.

公开(公告)号：US20220015209A1

公开(公告)日：2022-01-13

申请号：US17448727

申请日：2021-09-24

Applicant: QIXINGTIAN (BEIJING) CONSULTING COMPANY LTD.

Inventor： Shan GUAN ,  Qinggang HE

IPC: H05B47/105 ,  H05B45/14 ,  H05B47/18 ,  G01J1/32 ,  H05B47/10 ,  H05B47/14

Abstract: The present disclosure provides a method including providing a dimming circuit applied with an alternating current voltage and an illumination device connected to the dimming circuit; obtaining related data of the illumination device within at least one alternating current period; generating a processing result by processing the related data; and determining a type of the illumination device based on the processing result.

公开(公告)号：US11158992B2

公开(公告)日：2021-10-26

申请号：US15658032

申请日：2017-07-24

Applicant: Axon Enterprise, Inc.

Inventor： Magne Nerheim

IPC: H01S5/0683 ,  G01J1/32 ,  F41G3/32 ,  G01J1/18 ,  G01J1/42 ,  H01S5/042 ,  H01S5/06 ,  H01S5/068 ,  H05C1/00 ,  F41G1/35 ,  F41G1/54 ,  F41H13/00

Abstract: Systems and methods for calibrating, operating, and setting the magnitude of the power of light provided by a laser diode in a conducted electrical weapon (“CEW”). The light of the laser diode assists in targeting by providing a visible indication of the projected point of impact of the tethered electrode of the CEW. The calibration process enables laser diode of a CEW to operate within regional guidelines of the maximum output power of light permitted by a laser. The method further permits the magnitude of the power of the light provided by a laser diode to be set and operated in changing environmental conditions in the field.

公开(公告)号：US11029199B2

公开(公告)日：2021-06-08

申请号：US15828209

申请日：2017-11-30

Applicant: Fitbit, Inc.

Inventor： Félix Antoine Turgeon ,  Sebastian Joseph Capella ,  Subramaniam Venkatraman ,  Shelten Gee Jao Yuen ,  Heiko Gernot Albert Panther

IPC: A61B5/1455 ,  G01J1/42 ,  A61B5/00 ,  G09G5/10 ,  G06K9/20 ,  G01J1/32 ,  G01J1/18 ,  G01J1/44 ,  G01J1/46 ,  G01J1/02 ,  G01J1/04 ,  G06K9/00 ,  A61B5/024 ,  A61B5/021 ,  A61B5/145 ,  A61B5/0533 ,  A61B5/01

Abstract: A wearable computing device includes an electronic display with a configurable brightness level setting, a physiological metric sensor system including a light source configured to direct light into tissue of a user wearing the wearable computing device and a light detector configured to detect light from the light source that reflects back from the user. The device may further include control circuitry configured to activate the light source during a first period, generate a first light detector signal indicating a first amount of light detected by the light detector during the first period, deactivate the light source during a second period, generate a second light detector signal indicating a second amount of light detected by the light detector during the second period, generate a physiological metric based at least in part on the first light detector signal and the second light detector signal, and modify the configurable brightness level setting based on the second light detector signal.