COLOR CONTROL IN LIGHT FIXTURE WITH SUBTRACTIVE COLOR MIXING SYSTEM AND ADDITIONAL FILTER

    公开(公告)号:US20230151947A1

    公开(公告)日:2023-05-18

    申请号:US17525001

    申请日:2021-11-12

    CPC classification number: F21V9/40 F21V14/006 F21V23/0457

    Abstract: A method for controlling a subtractive color mixing system in a light fixture, comprising a light source, the subtractive color mixing system comprising a plurality of subtractive color filters, and an additional filter. The method is for emitting light having a target color upon having traversed the additional filter, such as upon having traversed the subtractive color mixing system and the additional filter and optionally being emitted from the light fixture. The method comprising receiving target information indicative of, such as defining, the target color, calculating a target control setpoint for each subtractive color filter within the plurality of subtractive color filters based on the target information, and calibration data, which for a plurality of sets of calibration control setpoints is indicative of an emitted color, controlling each of the subtractive color filters according to each calculated target control setpoint for each of the subtractive color filters.

    CONTROLLING OFF-STATE APPEARANCE OF A LIGHT EMITTING DEVICE

    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

    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.

    Non-pyrotechnic aerial display system

    公开(公告)号:US11493312B2

    公开(公告)日:2022-11-08

    申请号:US16934664

    申请日:2020-07-21

    Applicant: Flyerworks LLP

    Abstract: A non-pyrotechnic aerial display system may include a launcher configured to launch a non-pyrotechnic aerial display apparatus. The apparatus may include a head portion and a wing portion. The head portion may include a front portion, a rear portion, and a plurality of channels extending from the front portion toward the rear portion. The wing portion may extend rearward from the head portion. The wing portion may include a top surface, a bottom surface, a leading edge, a trailing edge, a rear edge extending from the leading edge to the trailing edge, and an airfoil extending along the leading edge. The wing portion may include a counterweight. The apparatus may include one or more forward-facing lights. The apparatus may include one or more rearward-facing lights. Other examples may be described and claimed.

    LED light has built-in air related part(s)

    公开(公告)号:US11473741B2

    公开(公告)日:2022-10-18

    申请号:US16568735

    申请日:2019-09-12

    Applicant: Tseng-Lu Chien

    Inventor: Tseng-Lu Chien

    Abstract: A LED light with built-in Air flow device has AC-to-DC circuit to get DC current to supply power to LED or LEDs and-to charge inside rechargeable batteries and to the inside air flow related device or other product(s). The LED light connect IC and control circuit to make setting, changing, adjust of the said at least one of (A) LED(s) colors, brightness, on-off, duration, cycles, frequency, sequential, flashing, color changing, color selection, auto changing, or other LED light effects, (B) Air flow related parts to get desired speed of rotating fan or blade, on-off, duration, timer, countdown timer, or other desired air flow related function(s); by at least one of (1) trigger system, (2) switch, (3) sensor, (4) motion or moving or radar sensor, (5) IR or RF remote control system, (6) power fail sensor, (7) built-in Auto-Off-On or multiple selection positions switch, (8) other related LED or air flow or air-freshener or fragrance or essential oil diffusor parts or accessories; wherein the LED light connect with (i) AC power source by prongs with or without folding features, (ii) DC power from at least one outside transformer, power bank, DC power from cigarette-plug, USB related DC power source, DC power storage device, solar module, or DC generator.

    Lighting device
    39.
    发明授权

    公开(公告)号:US11466840B2

    公开(公告)日:2022-10-11

    申请号:US17226144

    申请日:2021-04-09

    Abstract: The purpose of the present invention is to realize a lighting device of thin, low power consumption and small light distribution angle. The present invention takes the following structure to realize the above task: A lighting device having an emitting surface and a bottom opposing to the emitting surface including: a resin, set between the emitting surface and the bottom, having a hole at a center, a reflection block set in the hole at a side of the emitting surface, an LED, which is a light source, set in the hole at a side of the bottom, a space between the LED and the reflection block, in which the resin is contained in a container whose inner surface is a reflecting surface.

    LIGHT SOURCE HAVING A VARIABLE ASYMMETRIC BEAM

    公开(公告)号:US20220268424A1

    公开(公告)日:2022-08-25

    申请号:US17632825

    申请日:2020-08-07

    Inventor: Tigran GALSTIAN

    Abstract: An architectural lighting device for wall washing providing suitable beam modulation is described herein. The device combines a variable divergence beam source (a light source along with a beam stretching element) in combination with a specially designed side reflector that redirects a portion of a broadened beam back onto the wall so as to have wall illumination increase with beam divergence.

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