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1. 发明申请

US20060118805A1 Light emitting devices with improved light extraction efficiency 有权
公开(公告)号：US20060118805A1
公开(公告)日：2006-06-08
申请号：US11328964
申请日：2006-01-09
申请人： Michael Camras , Gerard Harbers , William Imler , Matthijs Keuper , Paul Martin , Douglas Pocius , Frank Steranka , Helena Ticha , Ladislav Tichy , R. West
发明人： Michael Camras , Gerard Harbers , William Imler , Matthijs Keuper , Paul Martin , Douglas Pocius , Frank Steranka , Helena Ticha , Ladislav Tichy , R. West
IPC分类号： H01L33/00
CPC分类号： H01L33/58 , H01L33/44 , H01L33/505 , H01L33/60 , H01L2924/0002 , H01L2924/00
摘要： A device includes a light emitting semiconductor device bonded to an optical element. In some embodiments, the optical element may be elongated or shaped to direct a portion of light emitted by the active region in a direction substantially perpendicular to a central axis of the semiconductor light emitting device and the optical element. In some embodiments, the semiconductor light emitting device and optical element are positioned in a reflector or adjacent to a light guide. The optical element may be bonded to the first semiconductor light emitting device by a bond at an interface disposed between the optical element and the semiconductor light emitting device. In some embodiments, the bond is substantially free of organic-based adhesives.

2. 发明申请

US20050023545A1 Light emitting devices with improved light extraction efficiency 有权
标题翻译：具有提高光提取效率的发光器件
公开(公告)号：US20050023545A1
公开(公告)日：2005-02-03
申请号：US10633054
申请日：2003-07-31
申请人： Michael Camras , Gerard Harbers , William Imler , Matthijs Keuper , Paul Martin , Douglas Pocius , Frank Steranka , Helena Ticha , Ladislav Tichy , R. West
发明人： Michael Camras , Gerard Harbers , William Imler , Matthijs Keuper , Paul Martin , Douglas Pocius , Frank Steranka , Helena Ticha , Ladislav Tichy , R. West
IPC分类号： H01L33/44 , H01L33/58 , H01L33/60 , H01L33/00
CPC分类号： H01L33/58 , H01L33/44 , H01L33/505 , H01L33/60 , H01L2924/0002 , H01L2924/00
摘要： A device includes a light emitting semiconductor device bonded to an optical element. In some embodiments, the optical element may be elongated or shaped to direct a portion of light emitted by the active region in a direction substantially perpendicular to a central axis of the semiconductor light emitting device and the optical element. In some embodiments, the semiconductor light emitting device and optical element are positioned in a reflector or adjacent to a light guide. The optical element may be bonded to the first semiconductor light emitting device by a bond at an interface disposed between the optical element and the semiconductor light emitting device. In some embodiments, the bond is substantially free of organic-based adhesives.
摘要翻译：一种器件包括结合到光学元件的发光半导体器件。在一些实施例中，光学元件可以是细长的或成形的，以在与半导体发光器件和光学元件的中心轴线基本垂直的方向上引导由有源区域发射的光的一部分。在一些实施例中，半导体发光器件和光学元件被定位在反射器中或与光导相邻。光学元件可以通过在设置在光学元件和半导体发光器件之间的界面处的结合键合到第一半导体发光器件。在一些实施方案中，该键基本上不含有机基粘合剂。

3. 发明申请

US20080006840A1 Light Emitting Devices with Improved Light Extraction Efficiency 审中-公开
标题翻译：具有提高光提取效率的发光装置
公开(公告)号：US20080006840A1
公开(公告)日：2008-01-10
申请号：US11860486
申请日：2007-09-24
申请人： Michael Camras , Gerard Harbers , William Imler , Matthijs Keuper , Paul Martin , Douglas Pocius , Frank Steranka , Helena Ticha , Ladislav Tichy , R. West
发明人： Michael Camras , Gerard Harbers , William Imler , Matthijs Keuper , Paul Martin , Douglas Pocius , Frank Steranka , Helena Ticha , Ladislav Tichy , R. West
IPC分类号： H01L29/22 , H01L33/00
CPC分类号： H01L33/58 , H01L33/44 , H01L33/505 , H01L33/60 , H01L2924/0002 , H01L2924/00
摘要： A device includes a light emitting semiconductor device bonded to an optical element. In some embodiments, the optical element may be elongated or shaped to direct a portion of light emitted by the active region in a direction substantially perpendicular to a central axis of the semiconductor light emitting device and the optical element. In some embodiments, the semiconductor light emitting device and optical element are positioned in a reflector or adjacent to a light guide. The optical element may be bonded to the first semiconductor light emitting device by a bond at an interface disposed between the optical element and the semiconductor light emitting device. In some embodiments, the bond is substantially free of organic-based adhesives.
摘要翻译：一种器件包括结合到光学元件的发光半导体器件。在一些实施例中，光学元件可以是细长的或成形的，以在与半导体发光器件和光学元件的中心轴线基本垂直的方向上引导由有源区域发射的光的一部分。在一些实施例中，半导体发光器件和光学元件被定位在反射器中或与光导相邻。光学元件可以通过在设置在光学元件和半导体发光器件之间的界面处的结合键合到第一半导体发光器件。在一些实施方案中，该键基本上不含有机基粘合剂。

4. 发明申请

US20050270775A1 Remote wavelength conversion in an illumination device 有权
标题翻译：照明装置中的远程波长转换
公开(公告)号：US20050270775A1
公开(公告)日：2005-12-08
申请号：US10861769
申请日：2004-06-04
申请人： Gerard Harbers , Matthijs Keuper
发明人： Gerard Harbers , Matthijs Keuper
IPC分类号： G02F1/13357 , F21K7/00 , F21S2/00 , F21V9/08 , F21V29/00 , F21Y101/00 , F21Y101/02 , G02B27/14 , G03B21/00 , G03B21/14 , H01L27/00 , H01L33/44 , H01L33/58 , H01L33/60 , H04N9/31
CPC分类号： G02B27/149 , G02B27/1046 , G02B27/145 , G03B21/204 , H01L33/44 , H01L33/58 , H01L33/60 , H04N9/315 , H04N9/3161
摘要： An illumination device uses a wavelength converting element, such as a phosphor layer, that is physically separated from a light source, such as one or more light emitting diodes, a Xenon lamp or a Mercury lamp. The wavelength converting element is optically separated from the light source, so that the converted light emitted by the wavelength converting element is prevented from being incident on the light source. Accordingly, the temperature limitations of the wavelength converting element are removed, thereby permitting the light source to be driven with an increased current to produce a higher radiance. Moreover, by optically separating the wavelength converting element from the light source, the conversion and recycling efficiency of the device is improved, which also increases radiance.
摘要翻译：照明装置使用与光源物理分离的诸如荧光体层的波长转换元件，例如一个或多个发光二极管，氙灯或汞灯。波长转换元件与光源光学分离，从而防止由波长转换元件发射的转换光入射到光源上。因此，去除了波长转换元件的温度限制，从而允许以增加的电流驱动光源以产生更高的辐射度。此外，通过将波长转换元件与光源进行光学分离，提高了器件的转换和再循环效率，这也增加了辐射。

5. 发明申请

US20050179041A1 Illumination system with LEDs 审中-公开
标题翻译： LED照明系统
公开(公告)号：US20050179041A1
公开(公告)日：2005-08-18
申请号：US10782248
申请日：2004-02-18
申请人： Gerard Harbers , Matthijs Keuper , Daniel Steigerwald
发明人： Gerard Harbers , Matthijs Keuper , Daniel Steigerwald
IPC分类号： H01L33/58 , H04N9/31 , H01L27/15 , H01L21/00
CPC分类号： H04N9/315 , H01L33/58 , H01L2933/0058
摘要： The luminance of a system that includes a light emitting diode (LED), such as a projection system, may be increased by using an LED chip that has a light emitting surface that emits light directly into any medium with a refractive index of less than or equal to approximately 1.25. For example, the LED chip may emit light directly into the ambient environment, such as air or gas, instead of into an encapsulant. The low refractive index decreases the étendue of the LED, which increases luminance. Moreover, without an encapsulant, a collimating optical element, such as a lens, can be positioned close to the light emitting surface of the LED chip, which advantageously permits the capture of light emitted at large angles. A secondary collimating optical element may be used to assist in focusing the light on a target, such as a micro-display.
摘要翻译：包括诸如投影系统的发光二极管（LED）的系统的亮度可以通过使用LED芯片来增加，该LED芯片具有发光表面，该发光表面直接将光直接发射到折射率小于或等于等于大约1.25。例如，LED芯片可以直接将光发射到诸如空气或气体的周围环境中，而不是进入密封剂。低折射率降低了LED的亮度，增加了亮度。此外，没有密封剂，诸如透镜的准直光学元件可以靠近LED芯片的发光表面定位，这有利地允许捕获以大角度发射的光。辅助准直光学元件可以用于帮助将光聚焦在诸如微显示器的目标上。

6. 发明申请

US20050190562A1 Illumination system with aligned LEDs 有权
标题翻译：具有对准LED的照明系统
公开(公告)号：US20050190562A1
公开(公告)日：2005-09-01
申请号：US10789834
申请日：2004-02-27
申请人： Matthijs Keuper , Gerard Harbers
发明人： Matthijs Keuper , Gerard Harbers
IPC分类号： G03B21/14 , G03B21/16 , H01L25/13 , H01L27/15 , H01L33/00 , H04N9/31 , F21V17/02
CPC分类号： H04N9/317 , H04N9/3111 , H04N9/3144
摘要： A compact illumination system that is suitable for, e.g., projection systems, includes a plurality of light emitting diodes that are aligned along the same axis. The illumination system includes mirrors and a filter system for combining the light emitted by the different light emitting diodes. The light emitting diodes may be mounted within the same plane, e.g., on the same heatsink, which simplifies assembly and alignment of the system. Moreover, a collimator system with integrally formed refractive and/or reflective collimators, may be used. The use of an integrally formed collimator system advantageously reduces the number of piece parts and simplifies assembly.
摘要翻译：适合于例如投影系统的小型照明系统包括沿同一轴线排列的多个发光二极管。照明系统包括反射镜和用于组合由不同发光二极管发射的光的滤光器系统。发光二极管可以安装在同一平面内，例如在相同的散热器上，这简化了系统的组装和对准。此外，可以使用具有整体形成的折射和/或反射准直仪的准直器系统。使用整体形成的准直器系统有利地减少了零件的数量并且简化了组装。

7. 发明授权

US07234820B2 Illuminators using reflective optics with recycling and color mixing 失效
标题翻译：使用反射光学器件的照明器具有回收和混色
公开(公告)号：US07234820B2
公开(公告)日：2007-06-26
申请号：US11104220
申请日：2005-04-11
申请人： Gerard Harbers , Laurie Scheffel , Matthijs Keuper , Robert H. Holman
发明人： Gerard Harbers , Laurie Scheffel , Matthijs Keuper , Robert H. Holman
IPC分类号： G03B21/26 , G03B21/28 , G02B6/10 , G02B5/30 , G02B27/28 , G02B21/14 , F21V9/00
CPC分类号： G02B19/0028 , G02B6/0068 , G02B19/0023 , G02B19/0066 , G02B19/0095 , G02B27/0983 , G02B27/1053 , G02B27/145 , G02B27/149 , G03B21/204 , H04N9/315
摘要： Various optical techniques are described for obtaining a specified light output from an LED source. One technique uses a parabolic reflector surrounding an LED or LED array to create a collimated beam, and the light exit opening of the parabolic reflector is defined by a reflective disc with an opening of the desired size. Any generated light that is outside of the opening is reflected back into the parabolic reflector and re-reflected until the light exits the opening. For mixing different light colors from different LEDs or energized phosphors, a mixing tunnel is used. The mixing tunnel includes angled dichroic mirrors or angled polarizer mirrors that selectively reflect and pass selected colors or polarizations of light to a single output port of the mixing tunnel. Efficient and compact ways to energize phosphors are also described. Other optical techniques are also described.
摘要翻译：描述各种光学技术以获得来自LED源的指定光输出。一种技术使用围绕LED或LED阵列的抛物面反射器来产生准直光束，并且抛物面反射器的光出口由具有所需尺寸的开口的反射盘限定。在开口之外的任何产生的光被反射回抛物面反射器并被反射，直到光离开开口。为了混合来自不同LED或激发荧光粉的不同光色，使用混合通道。混合通道包括倾斜的分色镜或成角度的偏光镜，其选择性地将所选择的颜色或偏光转换到混合隧道的单个输出端口。还描述了激发磷光体的高效紧凑的方法。还描述了其他光学技术。

8. 发明申请

US20060227302A1 Illuminators using reflective optics with recycling and color mixing 失效
标题翻译：使用反射光学器件的照明器具有回收和混色
公开(公告)号：US20060227302A1
公开(公告)日：2006-10-12
申请号：US11104220
申请日：2005-04-11
申请人： Gerard Harbers , Laurie Scheffel , Matthijs Keuper , Robert Holman
发明人： Gerard Harbers , Laurie Scheffel , Matthijs Keuper , Robert Holman
IPC分类号： G03B21/26
CPC分类号： G02B19/0028 , G02B6/0068 , G02B19/0023 , G02B19/0066 , G02B19/0095 , G02B27/0983 , G02B27/1053 , G02B27/145 , G02B27/149 , G03B21/204 , H04N9/315
摘要： Various optical techniques are described for obtaining a specified light output from an LED source. One technique uses a parabolic reflector surrounding an LED or LED array to create a collimated beam, and the light exit opening of the parabolic reflector is defined by a reflective disc with an opening of the desired size. Any generated light that is outside of the opening is reflected back into the parabolic reflector and re-reflected until the light exits the opening. For mixing different light colors from different LEDs or energized phosphors, a mixing tunnel is used. The mixing tunnel includes angled dichroic mirrors or angled polarizer mirrors that selectively reflect and pass selected colors or polarizations of light to a single output port of the mixing tunnel. Efficient and compact ways to energize phosphors are also described. Other optical techniques are also described.
摘要翻译：描述各种光学技术以获得来自LED源的指定光输出。一种技术使用围绕LED或LED阵列的抛物面反射器来产生准直光束，并且抛物面反射器的光出口由具有所需尺寸的开口的反射盘限定。在开口之外的任何产生的光被反射回抛物面反射器并被反射，直到光离开开口。为了混合来自不同LED或激发荧光粉的不同光色，使用混合通道。混合通道包括倾斜的分色镜或成角度的偏光镜，其选择性地将所选择的颜色或偏光转换到混合隧道的单个输出端口。还描述了激发磷光体的高效紧凑的方法。还描述了其他光学技术。

9. 发明申请

US20080030984A1 Compact Mixing Cavity for Multiple Colors of LEDs 失效
标题翻译：紧凑型混合腔用于多种颜色的LED
公开(公告)号：US20080030984A1
公开(公告)日：2008-02-07
申请号：US11751594
申请日：2007-05-21
申请人： Gerard Harbers , Laurie Scheffel , Matthijs Keuper , Robert Holman
发明人： Gerard Harbers , Laurie Scheffel , Matthijs Keuper , Robert Holman
IPC分类号： F21V9/08
CPC分类号： G02B19/0028 , G02B6/0068 , G02B19/0023 , G02B19/0066 , G02B19/0095 , G02B27/0983 , G02B27/1053 , G02B27/145 , G02B27/149 , G03B21/204 , H04N9/315
摘要： For mixing different light colors from different LEDs or energized phosphors, an elongated mixing tunnel is used having a reflective inner surface. LEDs of different colors are optically coupled along the length of the mixing tunnel and at a first end of the tunnel. Light coupled along the length of the tunnel is reflected by an angled dichroic mirror that selectively reflects the incoming color light towards a single output port of the mixing tunnel. The dichroic mirror passes all other colors of light being transmitted towards the output port of the tunnel. Two, three, or more colors of LEDs can be used. Efficient and compact ways to energize phosphors are also described. Other optical techniques are also described.
摘要翻译：为了混合来自不同的LED或激发的荧光体的不同的光色，使用具有反射内表面的细长混合隧道。不同颜色的LED沿着混合隧道的长度和隧道的第一端光学耦合。沿着隧道的长度耦合的光被一个倾斜的分色镜反射，该分色镜选择性地将输入的彩色光反射到混合隧道的单个输出端口。分色镜将通过所有其他颜色的光传送到隧道的输出端口。可以使用两种，三种或更多种颜色的LED。还描述了激发磷光体的高效紧凑的方法。还描述了其他光学技术。

10. 发明申请

US20050162849A1 LED with an optical system to increase luminance by recycling emitted light 有权
标题翻译： LED与光学系统通过再循环发光来增加亮度
公开(公告)号：US20050162849A1
公开(公告)日：2005-07-28
申请号：US10765312
申请日：2004-01-26
申请人： Matthijs Keuper
发明人： Matthijs Keuper
IPC分类号： H01L33/58 , F21S2/00
CPC分类号： H01L33/58 , H01L33/507
摘要： The amount of usefully captured light in an optical system is increased by concentrating light in a region where it can be collected by the optical system. In one embodiment, a light emitting diode is disposed on a first surface of a transparent member, which includes an exit surface. The transparent member includes a reflective element on a second surface and is shaped such that light emitted from the light emitting diode is directed toward the exit surface. A portion of the first surface of the transparent member between the first light emitting diode and the exit surface of the transparent member first surface is coated with a reflective coating. The portion of the first surface with the reflective coating may be larger than the width of the light emitting diode. In one embodiment, the transparent member is formed from two separate transparent elements.
摘要翻译：光学系统中有用的捕获光的量通过将光聚集在可由光学系统收集的区域中而增加。在一个实施例中，发光二极管设置在包括出射表面的透明构件的第一表面上。透明构件包括在第二表面上的反射元件，其形状使得从发光二极管发出的光指向出射表面。透明构件的第一表面在第一发光二极管和透明构件第一表面的出射表面之间的一部分涂覆有反射涂层。具有反射涂层的第一表面的部分可以大于发光二极管的宽度。在一个实施例中，透明构件由两个分离的透明元件形成。

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