公开(公告)号：US07663152B2

公开(公告)日：2010-02-16

申请号：US11463443

申请日：2006-08-09

申请人： Serge J. Bierhuizen ,  Edwin de Groot ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Edwin de Groot ,  Gerard Harbers

IPC分类号： F21V9/00

CPC分类号： H01L33/644 ,  F21K9/60 ,  F21K9/64 ,  F21V29/502 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/507 ,  H01L33/58 ,  H01L2924/0002 ,  H01L2924/00

摘要： An illumination device includes a light source, such as one or more light emitting diodes in an array, that produces light having a first wavelength range. A separated wavelength converting element is mounted to receive the light emitted by the light source. The wavelength converting element is physically separated from the light source along the beam path. The wavelength converting element converts the light having a first wavelength range into light having a second wavelength range. In one embodiment, a color separation element is directly coupled to the wavelength converting element. The color separation element is also physically separated from the light source. In another embodiment, the wavelength converting element is held by a heat sink by the sides.

摘要翻译： 照明装置包括诸如阵列中的一个或多个发光二极管的光源，其产生具有第一波长范围的光。 安装分离的波长转换元件以接收由光源发射的光。 波长转换元件沿光束路径与光源物理分离。 波长转换元件将具有第一波长范围的光转换成具有第二波长范围的光。 在一个实施例中，颜色分离元件直接耦合到波长转换元件。 色分离元件也与光源物理分离。 在另一个实施例中，波长转换元件由侧面由散热器保持。

公开(公告)号：US20090154137A1

公开(公告)日：2009-06-18

申请号：US11956992

申请日：2007-12-14

申请人： Serge J. Bierhuizen ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Gerard Harbers

IPC分类号： F21V9/16 ,  F21V9/00

CPC分类号： H01L25/0753 ,  G02B19/0028 ,  G02B19/0066 ,  H01L33/507 ,  H01L33/58 ,  H01L33/644 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/00

摘要： A structure for providing a collimated light beam includes a light source configured to emit light having a first peak wavelength combined with a group of structures configured to direct at least a portion of light exiting the light source in a direction substantially perpendicular to a top surface of the light source and reflect another portion. In some embodiments, a wavelength converting element is positioned in a path of light emitted from the light source, the wavelength converting element configured to absorb at least a portion of the light having a first peak wavelength and emit light having a second peak wavelength. The group of structures may be formed over the wavelength converting element, such that the wavelength converting element is disposed between the group of structures and the light source.

摘要翻译： 用于提供准直光束的结构包括：光源，被配置为发射具有第一峰值波长的光，该第一峰值波长与一组结构组合，所述一组结构被配置成沿着基本垂直于光源的顶表面的方向引导离开光源的光的至少一部分 光源并反射另一部分。 在一些实施例中，波长转换元件位于从光源发射的光的路径中，波长转换元件被配置为吸收具有第一峰值波长的光的至少一部分并发射具有第二峰值波长的光。 该组结构可以形成在波长转换元件上，使得波长转换元件设置在该组结构和光源之间。

公开(公告)号：US20090046479A1

公开(公告)日：2009-02-19

申请号：US11840130

申请日：2007-08-16

申请人： Serge J. Bierhuizen ,  Gerard Harbers ,  Oleg B. Shchekin ,  Gregory W. Eng

发明人： Serge J. Bierhuizen ,  Gerard Harbers ,  Oleg B. Shchekin ,  Gregory W. Eng

IPC分类号： F21V7/04 ,  G02B6/10

CPC分类号： G02B6/0021 ,  G02B6/0016 ,  G02B6/0073

摘要： Low profile, side-emitting LEDs are described. The LEDs are used in very thin backlights for backlighting an LCD. In one embodiment, the backlight comprises a solid transparent waveguide with at least one opening in the waveguide containing an LED proximate to one edge. To smooth out a clover-shaped or batwing brightness profile inherently generated by a rectangular side-emitting LED within a smooth-sided rectangular opening in the waveguide, depending on the orientation of the LED, the sidewalls of the opening are made to have varying angles along the length of each sidewall to vary the refraction angle of light along the sidewall. Additionally, if a plurality of LEDs are used in the backlight, the orientations of the openings alternate to create a more uniform brightness profile in the waveguide.

摘要翻译： 描述了侧面发光的LED。 LED用于非常薄的背光，用于背光LCD。 在一个实施例中，背光包括固体透明波导，其中波导中的至少一个开口包含靠近一个边缘的LED。 为了平滑由波导中的平滑侧矩形开口内的矩形侧面发光LED固有地产生的三叶草形状或蝙蝠翼亮度分布，取决于LED的取向，开口的侧壁被制成具有变化的角度 沿着每个侧壁的长度改变沿着侧壁的光的折射角。 此外，如果在背光中使用多个LED，则开口的取向交替以在波导中产生更均匀的亮度分布。

公开(公告)号：US20080142816A1

公开(公告)日：2008-06-19

申请号：US11611351

申请日：2006-12-15

申请人： Serge J. Bierhuizen ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Gerard Harbers

IPC分类号： H01L33/00

CPC分类号： H01L31/14 ,  F21K9/00 ,  F21V23/0457 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/504 ,  H01L2924/0002 ,  H05B33/0821 ,  H05B33/0869 ,  H01L2924/00

摘要： A uniform high brightness light source is provided using a plurality of light emitting diode (LED) chips with slightly different pump wavelengths with a wavelength converting element that includes at least two different wavelength converting materials that convert the light to different colors of light. The intensity of the light produced by the LED chips may be varied to provide a tunable CCT white point. The wavelength converting element may be, e.g., a stack or mixture of phosphor or luminescent ceramics. Moreover, the manufacturing process of the light source is simplified because the LED chips are all manufactured using the same technology eliminating the need to manufacture different types of chips.

摘要翻译： 使用具有稍微不同的泵浦波长的多个发光二极管（LED）芯片提供均匀的高亮度光源，其中波长转换元件包括将光转换成不同颜色的光的至少两种不同的波长转换材料。 可以改变由LED芯片产生的光的强度，以提供可调CCT白点。 波长转换元件可以是例如磷光体或发光陶瓷的叠层或混合物。 此外，光源的制造过程被简化，因为LED芯片都使用相同的技术制造，消除了制造不同类型的芯片的需要。

公开(公告)号：US07902560B2

公开(公告)日：2011-03-08

申请号：US11611351

申请日：2006-12-15

申请人： Serge J. Bierhuizen ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Gerard Harbers

IPC分类号： H01L27/15

CPC分类号： H01L31/14 ,  F21K9/00 ,  F21V23/0457 ,  F21Y2115/10 ,  H01L25/0753 ,  H01L33/504 ,  H01L2924/0002 ,  H05B33/0821 ,  H05B33/0869 ,  H01L2924/00

摘要： A uniform high brightness light source is provided using a plurality of light emitting diode (LED) chips with slightly different pump wavelengths with a wavelength converting element that includes at least two different wavelength converting materials that convert the light to different colors of light. The intensity of the light produced by the LED chips may be varied to provide a tunable CCT white point. The wavelength converting element may be, e.g., a stack or mixture of phosphor or luminescent ceramics. Moreover, the manufacturing process of the light source is simplified because the LED chips are all manufactured using the same technology eliminating the need to manufacture different types of chips.

摘要翻译： 使用具有稍微不同的泵浦波长的多个发光二极管（LED）芯片提供均匀的高亮度光源，其中波长转换元件包括将光转换成不同颜色的光的至少两种不同的波长转换材料。 可以改变由LED芯片产生的光的强度，以提供可调CCT白点。 波长转换元件可以是例如磷光体或发光陶瓷的叠层或混合物。 此外，光源的制造过程被简化，因为LED芯片都使用相同的技术制造，消除了制造不同类型的芯片的需要。

公开(公告)号：US20090052158A1

公开(公告)日：2009-02-26

申请号：US11844176

申请日：2007-08-23

申请人： Serge J. Bierhuizen ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Gerard Harbers

IPC分类号： F21V13/12

CPC分类号： H01L33/507 ,  H01L33/60 ,  H01L33/644 ,  H01L2924/0002 ,  H01L2924/00

摘要： A light source configured to emit first light is combined with a wavelength-converting layer. The wavelength-converting layer is disposed in a path of first light, is spaced apart from the light source, and includes at least one wavelength-converting material such as a phosphor configured to absorb first light and emit second light. The wavelength-converting layer is disposed between a reflective layer and the light source. In some embodiments, the wavelength-converting layer is a thick layer.

摘要翻译： 配置为发射第一光的光源与波长转换层组合。 波长转换层设置在第一光的路径上，与光源间隔开，并且包括至少一种波长转换材料，例如被配置为吸收第一光并发射第二光的磷光体。 波长转换层设置在反射层和光源之间。 在一些实施例中，波长转换层是厚层。

公开(公告)号：US20090051831A1

公开(公告)日：2009-02-26

申请号：US11844214

申请日：2007-08-23

申请人： Serge J. Bierhuizen ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Gerard Harbers

IPC分类号： G02F1/13357

CPC分类号： G03B21/208 ,  G03B5/06 ,  G03B21/2013 ,  H04N9/3138

摘要： A projector includes a plurality of illumination modules. Each illumination module includes a light source, such as a semiconductor light emitting diode, and an optical element configured to receive light from the light source and collimate the light into a beam. Light from the illumination modules is provided to a liquid crystal display panel, then a projection lens. In some embodiments, secondary optics, such as an array of Fresnel lenses or a reflective polarizer, are disposed between the illumination modules and the liquid crystal display panel. In some embodiments, the liquid crystal display panel is a low temperature polysilicon liquid crystal display.

摘要翻译： 投影仪包括多个照明模块。 每个照明模块包括诸如半导体发光二极管的光源和被配置为从光源接收光并将光准直成光束的光学元件。 将来自照明模块的光提供给液晶显示面板，然后设置为投影透镜。 在一些实施例中，诸如菲涅耳透镜阵列或反射型偏振器的次级光学器件设置在照明模块和液晶显示面板之间。 在一些实施例中，液晶显示面板是低温多晶硅液晶显示器。

公开(公告)号：US20080158873A1

公开(公告)日：2008-07-03

申请号：US11618634

申请日：2006-12-29

申请人： Serge J. Bierhuizen ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Gerard Harbers

IPC分类号： F21V9/10

CPC分类号： G02B27/102 ,  H04N9/3108 ,  H04N9/3111 ,  H04N9/3158

摘要： An illumination source includes at least one light emitting diode, e.g., in array of LEDs that produce short wavelength light. One or more wavelength converting elements, such as phosphor elements, convert at least a portion of the short wavelength light from the LED(s) to longer wavelengths, such as Red and Green. A dichroic element positioned between the LED(s) and the wavelength converting element(s) transmits the light from the LED(s) and reflects the longer wavelengths from the wavelength converting element(s). A color selection panel selects the colors of light to be produced by the illumination device and to be recycled for another opportunity to be converted by the wavelength converting element(s) or to be reflected by the dichroic element. The color selection panel may operate in one or both of the spatial domain and the temporal domain.

摘要翻译： 照明源包括至少一个发光二极管，例如产生短波长光的LED阵列。 诸如磷光体元件的一个或多个波长转换元件将来自LED的短波长光的至少一部分转换成较长波长，例如红色和绿色。 定位在LED和波长转换元件之间的二向色元件透射来自LED的光并从波长转换元件反射更长的波长。 颜色选择面板选择要由照明装置产生的光的颜色并被再循环，以便另外由波长转换元件转换的机会或由二色性元件反射。 颜色选择面板可以在空间域和时域中的一个或两个中操作。

公开(公告)号：US08421952B2

公开(公告)日：2013-04-16

申请号：US11949697

申请日：2007-12-03

申请人： Gerard Harbers ,  Takaaki Yagi ,  Johannes W. H. S. Smitt ,  Serge J. Bierhuizen

发明人： Gerard Harbers ,  Takaaki Yagi ,  Johannes W. H. S. Smitt ,  Serge J. Bierhuizen

IPC分类号： G02F1/1335 ,  G02F1/1333

CPC分类号： G02F1/133605 ,  G02F1/133603 ,  G02F2001/133614

摘要： A backlight for a display includes a plurality of illumination modules, each illumination module including a light source and a reflective member. A portion of the reflective member is disposed over the light source. A liquid crystal display panel is disposed over the plurality of illumination modules. The reflective member is configured such that a majority of light from the light source is directed parallel to the liquid crystal display panel, to provide uniform illumination of the liquid crystal display panel. In some embodiments, the light source is at least one semiconductor light emitting diode.

摘要翻译： 用于显示器的背光源包括多个照明模块，每个照明模块包括光源和反射构件。 反射构件的一部分设置在光源上。 液晶显示面板设置在多个照明模块上。 反射构件被配置为使得来自光源的大部分光指向平行于液晶显示面板，以提供液晶显示面板的均匀照明。 在一些实施例中，光源是至少一个半导体发光二极管。

公开(公告)号：US07940341B2

公开(公告)日：2011-05-10

申请号：US11844214

申请日：2007-08-23

申请人： Serge J. Bierhuizen ,  Gerard Harbers

发明人： Serge J. Bierhuizen ,  Gerard Harbers

IPC分类号： G02F1/1335

CPC分类号： G03B21/208 ,  G03B5/06 ,  G03B21/2013 ,  H04N9/3138

摘要： A projector includes a plurality of illumination modules. Each illumination module includes a light source, such as a semiconductor light emitting diode, and an optical element configured to receive light from the light source and collimate the light into a beam. Light from the illumination modules is provided to a liquid crystal display panel, then a projection lens. In some embodiments, secondary optics, such as an array of Fresnel lenses or a reflective polarizer, are disposed between the illumination modules and the liquid crystal display panel. In some embodiments, the liquid crystal display panel is a low temperature polysilicon liquid crystal display.

摘要翻译： 投影仪包括多个照明模块。 每个照明模块包括诸如半导体发光二极管的光源和被配置为从光源接收光并将光准直成光束的光学元件。 将来自照明模块的光提供给液晶显示面板，然后设置为投影透镜。 在一些实施例中，诸如菲涅耳透镜阵列或反射型偏振器的次级光学器件设置在照明模块和液晶显示面板之间。 在一些实施例中，液晶显示面板是低温多晶硅液晶显示器。