Integrated light engines including flexible optics and flexible light sources

    公开(公告)号:US11306896B2

    公开(公告)日:2022-04-19

    申请号:US15315338

    申请日:2015-06-01

    Abstract: An integrated light engine including flexible optics and a flexible light source, and lighting devices including the same, are provided. The integrated light engine includes a flexible light source configured to emit light, and flexible optics coupled to the flexible light source. The flexible optics beam shapes light emitted by the flexible light source. The integrated light engine is capable of entering a set of states, such that a portion of beam shaped light emitted by the integrated light engine in a first state is aimed in a first direction and a portion of beam shaped light emitted by the integrated light engine in a second state is aimed in a second direction. Different combinations of the flexible optics with the flexible light source result in the integrated light engine being able to enter a number of flexed states or being held in a substantially flat, substantially stiff state.

    Transmission of luminaire maintenance information

    公开(公告)号:US10893598B2

    公开(公告)日:2021-01-12

    申请号:US16257291

    申请日:2019-01-25

    Abstract: The systems and method disclosed herein include a LCom-enabled luminaire configured to transmit a maintenance trigger encoded in an LCom signal in response to detecting an error or maintenance condition in the LCom-enabled luminaire, receive an access request, transmit maintenance information in response to the access request, and receive correction information to correct the error or maintenance condition. The systems and methods further include a receiver device configured to receive the maintenance trigger, generate the access request based on the maintenance trigger, transmit the access request to the LCom-enabled luminaire, receive maintenance information in response to the access request, and transmit control commands based on the maintenance information.

    Baffled tri-region optic for an AFS vehicle headlamp

    公开(公告)号:US10539286B1

    公开(公告)日:2020-01-21

    申请号:US16022046

    申请日:2018-06-28

    Inventor: Lawrence Rice

    Abstract: An automotive lighting system (41) includes an automotive lamp having an LED array (14) and a lens (34). The lens (34) images a square field of illumination (101) into rectangular field of illumination (48) to support adaptive front lighting in an automotive environment (28). The lens (34) includes light-transmissive first, second, and third regions (64, 66, 68), and a baffle (70) adapted to obstruct light from spreading between the light-transmissive first, second, and third regions (64, 66, 68). The baffle (70) is disposed between the LED array (14) and light receiving surfaces (98, 104, 110) of the light-transmissive first, second, and third regions (64, 66, 68). The lens (34) enables imaging of an approximately rectangular field of illumination (48) from a single chip (12), reducing cost and cooling needs of adaptive front lighting systems.

    Irradiance-Controlled Fixture for Horticultural Applications

    公开(公告)号:US20190373825A1

    公开(公告)日:2019-12-12

    申请号:US16550505

    申请日:2019-08-26

    Abstract: Various implementations disclosed herein includes a method for operating lighting fixtures in horticultural applications. The method may include receiving a user input of a desired irradiance for a first color channel of one or more lighting fixtures that irradiates a plant bed, in which each of the one or more lighting fixtures comprises at least one light emitting diode (LED) array, determining, for each of the one or more lighting fixtures, a PWM setting of the first color channel such that each of the one or more lighting fixtures irradiate the plant bed at the desired irradiance based on calibration data stored in each of the one or more lighting fixtures, and applying, to each of the one or more lighting fixtures, the determined PWM setting of the first color channel.

    Commissioning a luminaire with location information

    公开(公告)号:US10256905B2

    公开(公告)日:2019-04-09

    申请号:US15127733

    申请日:2015-03-24

    Abstract: Techniques are disclosed for programming a luminaire with location information, referred to herein as commissioning. Location information may include relative location information (e.g., the position of the luminaire relative to a reference point) and/or absolute location information (e.g., global coordinates for the luminaire). A commissioned luminaire can be configured to emit its location information via light-based communication (LCom). In some cases, the luminaire can be commissioned manually, by hard coding the luminaire with its location either at the luminaire itself or using a device (e.g., a smartphone, tablet, or a dedicated luminaire commissioning device) to program the luminaire with location information. In some cases, the luminaire can be commissioned automatically. In some cases, the luminaire may be configured to provide visual, aural, or tactile feedback to indicate that the luminaire has not received location data or that the luminaire has been moved.

    LIGHT-BASED VEHICLE POSITIONING FOR MOBILE TRANSPORT SYSTEMS

    公开(公告)号:US20180350098A1

    公开(公告)日:2018-12-06

    申请号:US15779608

    申请日:2016-12-05

    CPC classification number: G06T7/70

    Abstract: Techniques and architecture are disclosed for mobile transport systems configured to determine vehicle positions within an area using light-based communication signals. The system includes a plurality of luminaires located in an area and configured to transmit luminaire position data recognizable by a sensor disposed on a vehicle. The sensor receives an image of a luminaire including a light-based communication signal encoded with luminaire position data. Luminaire position data can be combined with luminaire layout information to determine a known location of the luminaire. A vehicle position relative to the known luminaire location can be determined based on mathematical relationships. Vehicle orientation relative to the area can be determined based an asymmetric fiducial pattern or multiple known luminaire locations. The system can combine a vehicle position relative to a known luminaire location with vehicle orientation relative to the area to determine a vehicle position relative to the area.

    PROGRAMMABLE FEED-FORWARD REGULATION
    50.
    发明申请

    公开(公告)号:US20180324936A1

    公开(公告)日:2018-11-08

    申请号:US15763809

    申请日:2016-09-27

    Abstract: Programmable drivers (or power supplies) for solid state light sources are disclosed, on which output regulation is improved to expand the dimming range to 1% and reduce and/or remove flicker. Additional fault conditions are set up to avoid latching, and thus provide for a controllable restart feature. Such drivers include an isolated half bridge resonant converter with an improved control approach designed to regulate very low current though primary side in a feed-forward loop. Such drivers include both digital and analog loops that improve the performance in steady state and/or during transients, particularly for a lighting load, in comparison to a single full digital control.

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