High lumen output fluorescent lamp with high color rendition

    公开(公告)号:US07138757B2

    公开(公告)日:2006-11-21

    申请号:US10966436

    申请日:2004-10-15

    IPC分类号: H01J63/04

    摘要: A high lumen output compact fluorescent lamp is disclosed that has a luminous efficiency of 40 lumen/W or higher. The fluorescent lamp comprises an envelope enclosing a discharge space, means for providing a discharge in the discharge space, a discharge gas sealed in the discharge space and a fluorescent layer made of a phosphor blend coated on the inner surface of the envelope. The phosphor blend comprises a, 55 to 80 weight % of a first phosphor having an emission band with a maximum between 620 nm and 635 nm and having a half-value width of 70 nm to 150 nm, b, 5 to 30 weight % of a second phosphor having an emission band with a maximum between 605 nm and 615 nm and having a half-value width of 1 nm to 10 nm, c, 0 to 20 weight % of a third phosphor having an emission band with a maximum between 540 nm and 550 nm and having a half-value width of 1 nm to 10 nm, and d, 0 to 30 weight % of a fourth phosphor having an emission band with a maximum between 480 nm and 500 nm and having a half-value width of 50 nm to 80 nm. The lamp havs an Ra value greater than 90 and a photographic color temperature between 3000 K and 3500 K.A lamp is also disclosed in which the phosphor blend comprises: a, 20 to 60 weight % of a first phosphor having an emission band with a maximum between 620 nm and 635 nm and having a half-value width of 70 nm to 150 nm, b, 20 to 65 weight % of a second phosphor having an emission band with a maximum between 480 nm and 500 nm and having a half-value width of 50 nm to 95 nm, c, 0 to 20 weight % of a third phosphor having an emission band with a maximum between 450 nm and 460 nm and having a half-value width of 40 nm to 65 nm and d, 0 to 30 weight % of a fourth phosphor having an emission band with a maximum between 610 nm and 630 nm and having a half-value width of 1 nm to 10 nm. This lamp has an Ra value greater than 90 and a photographic color temperature between 5000 K and 6000 K.

    Discharge lamp with phosphor
    87.
    发明申请
    Discharge lamp with phosphor 失效
    放电灯带荧光粉

    公开(公告)号:US20050001533A1

    公开(公告)日:2005-01-06

    申请号:US10852126

    申请日:2004-05-25

    摘要: Discharge lamp with phosphor A discharge lamp (1) having a discharge vessel (2) which surrounds a discharge medium which emits electromagnetic radiation in the VUV region when the lamp is operating has, on the inner side of the discharge vessel wall, a first phosphor layer, which faces the discharge medium and comprises a UVA component which can be excited by the VUV radiation and is intended to emit electromagnetic radiation in the UVA region. Moreover, the discharge lamp (1) has a second phosphor layer, which can be excited by the UVA radiation and is intended to emit electromagnetic radiation in the visible region. This second phosphor layer either lies beneath the first phosphor layer or is applied to the outer side of the discharge vessel wall. This results in a lower color locus shift compared to a conventional phosphor mixture which can be excited directly by VUV radiation. (FIG. 1a)

    摘要翻译: 具有荧光体的放电灯具有放电容器(2)的放电灯(1)在灯工作时在VUV区域内发射电磁辐射的放电介质周围,在放电容器壁的内侧具有第一荧光体 层,其面向放电介质并且包括可被VUV辐射激发并且旨在在UVA区域中发射电磁辐射的UVA分量。 此外,放电灯(1)具有第二荧光体层,其可以被UVA辐射激发,并且旨在在可见区域中发射电磁辐射。 该第二荧光体层位于第一荧光体层下方或者被施加到放电容器壁的外侧。 与可以通过VUV辐射直接激发的常规荧光体混合物相比,这导致较低的颜色轨迹位移。 (图1a)