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    Luminaire with luminous element
    1.
    发明授权
    Luminaire with luminous element 有权

    公开(公告)号：US12130464B2

    公开(公告)日：2024-10-29

    申请号：US17432061

    申请日：2020-02-21

    申请人： QUARKSTAR LLC

    发明人： Eric Bretschneider

    IPC分类号： F21V8/00 ,  F21V21/04 ,  F21Y115/10

    CPC分类号： G02B6/0045 ,  G02B6/0051 ,  F21V21/04 ,  F21Y2115/10

    摘要： A luminaire includes alight source (110), an optical system (111), and a luminous areal element (LAE) (150a, 150b). The optical system (111) is configured to receive light from the light source (110) and output the light into a first far-field light distribution (145). The optical system includes one or more optical elements arranged to direct light from an input aperture (118) of the optical system to an output aperture (132) of the optical system, and one or more output surfaces at the output aperture through which light is emitted. The surface has a first dimension T. The LAE (150a, 150b) is spaced from the output aperture (132), and is configured to output light according to a second far-field light distribution (155a, 155b). The LAE has a light emission surface through which light is emitted having a second dimension W greater than T. The first and the second light distributions at least in part overlap.

    Lifetime color stabilization of color-shifting artificial light sources
    2.
    发明授权
    Lifetime color stabilization of color-shifting artificial light sources 有权

    公开(公告)号：US11991801B2

    公开(公告)日：2024-05-21

    申请号：US17742324

    申请日：2022-05-11

    申请人： Quarkstar LLC

    发明人： Eric Bretschneider ,  Louis Lerman ,  Hans Peter Stormberg

    IPC分类号： H05B45/22 ,  H01L33/50 ,  H05B45/24 ,  H05B45/28

    CPC分类号： H05B45/22 ,  H01L33/502 ,  H05B45/24 ,  H05B45/28 ,  H01L2933/0041

    摘要： A system includes two or more phosphor-containing white LEDs (or other color-shifting artificial light sources) selected so that their combined color shift over at least 8,000 hours (e.g., at least 10,000 hours, at least 20,000 hours, at least 30,000 hours, at least 40,000 hours, up to 200,000 hours, up to 100,000 hours, up to 80,000 hours) of operation is less than at least one of the LED's (or the other color-shifting artificial light source's) color shift over that time. Here, the combined color shift (Δu′v′) over the at least 8,000 hours (e.g., at least 10,000 hours, at least 20,000 hours, at least 30,000 hours, at least 40,000 hours, up to 200,000 hours, up to 100,000 hours, up to 80,000 hours) of operation can be less than 0.007 (e.g., 0.006 or less, 0.005 or less, 0.004 or less, 0.003 or less, 0.002 or less, 0.001 or less, 0.0005 or less).

    LUMINAIRE WITH LUMINOUS ELEMENT
    6.
    发明申请
    LUMINAIRE WITH LUMINOUS ELEMENT 有权

    公开(公告)号：US20220187527A1

    公开(公告)日：2022-06-16

    申请号：US17432061

    申请日：2020-02-21

    申请人： QUARKSTAR LLC

    发明人： Eric Bretschneider

    IPC分类号： F21V8/00

    摘要： A luminaire includes alight source (110), an optical system (111), and a luminous areal element (LAE) (150a, 150b). The optical system (111) is configured to receive light from the light source (110) and output the light into a first far-field light distribution (145). The optical system includes one or more optical elements arranged to direct light from an input aperture (118) of the optical system to an output aperture (132) of the optical system, and one or more output surfaces at the output aperture through which light is emitted. The surface has a first dimension T. The LAE (150a, 150b) is spaced from the output aperture (132), and is configured to output light according to a second far-field light distribution (155a, 155b). The LAE has a light emission surface through which light is emitted having a second dimension W greater than T. The first and the second light distributions at least in part overlap.