公开(公告)号：US07755838B2

公开(公告)日：2010-07-13

申请号：US11890601

申请日：2007-08-06

申请人： Julio C. Chaves ,  Waqidi Falicoff ,  Juan C. Minaño ,  Pablo Benitez ,  Oliver Dross ,  William A. Parkyn, Jr.

发明人： Julio C. Chaves ,  Waqidi Falicoff ,  Juan C. Minaño ,  Pablo Benitez ,  Oliver Dross ,  William A. Parkyn, Jr.

IPC分类号： G02B27/14 ,  G02B13/18 ,  G02B3/02

CPC分类号： G02B27/0994 ,  F21K9/61 ,  F21S41/00 ,  F21S41/125 ,  F21S41/18 ,  F21S41/24 ,  F21S43/251 ,  F21V5/04 ,  F21V7/0091 ,  F21Y2115/10 ,  G02B3/0056 ,  G02B3/08 ,  G02B6/0018 ,  G02B6/0046 ,  G02B6/0068 ,  G02B6/0073 ,  G02B19/0023 ,  G02B19/0028 ,  G02B19/0066 ,  H01L33/58 ,  H01L33/60 ,  H01L2924/0002 ,  H01L2924/00

摘要： An optical manifold for efficiently combining a plurality of blue LED outputs to illuminate a phosphor for a single, substantially homogeneous output, in a small, cost-effective package. Embodiments are disclosed that use a single or multiple LEDs and a remote phosphor, and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. A further aperture mask is used to boost phosphor luminance with only modest loss of luminosity. Alternative non-recycling embodiments provide blue and yellow light in collimated beams, either separately or combined into white.

摘要翻译： 一种光学歧管，用于以小的成本有效的封装有效地组合多个蓝色LED输出以照射单个，基本上均匀的输出的磷光体。 公开了使用单个或多个LED和远程荧光体以及中间波长选择性滤光器的实施例，其布置成使得后向散射的光致发光被再循环以提高输出孔径的亮度和通量。 使用另外的孔径掩模仅用适度的亮度损失来提高荧光体的亮度。 替代的非再循环实施例将准直光束中的蓝色和黄色光单独地或组合成白色。