Tunable lighting system with preferred color rendering

    公开(公告)号:US11949049B2

    公开(公告)日:2024-04-02

    申请号:US17686479

    申请日:2022-03-04

    申请人: Lumileds LLC

    发明人: Wouter Soer

    摘要: Light emitting devices having a first LED with a first phosphor, a second LED with a second phosphor and a third LED with a third phosphor to emit a composite white light are described. The first LED and first phosphor emit the red spectral component, the second LED and the second phosphor emit the blue spectral component and the third LED and third phosphor emit the green spectral component of the composite white light. The green spectral component has at least 30% radiant flux in a deep red spectral wavelength region.

    LIGHT BULB
    46.
    发明公开
    LIGHT BULB 审中-公开

    公开(公告)号:US20240085001A1

    公开(公告)日:2024-03-14

    申请号:US18327866

    申请日:2023-06-01

    发明人: PAI-CHUAN YUEH

    摘要: A light bulb includes: a bulb holder, a base, a lampshade, and an LED bulb panel. A lower end of the base is connected to the bulb holder. An upper end of the base is connected to the lampshade. The LED bulb panel is disposed on the base. A metal ring is sleeved on the lower end of the base. A first contact and a second contact are disposed on the bulb holder. A first light-emitting circuit and a second light-emitting circuit are disposed on the LED bulb panel. The metal ring is electrically connected to a first end of the first light-emitting circuit and a first end of the second light-emitting circuit. The first contact is electrically connected to a second end of the first light-emitting circuit. The second contact is electrically connected to a second end of the second light-emitting circuit.