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公开(公告)号：US09851071B2
公开(公告)日：2017-12-26
申请号：US13992144
申请日：2011-12-07
IPC分类号： F21V9/08 , F21S10/00 , G03B21/28 , F21V9/10 , G03B21/20 , G03B21/14 , F21V9/16 , F21V13/08 , G02B26/00 , G02B19/00 , F21Y101/00 , F21Y115/10
CPC分类号： G03B21/204 , F21K9/64 , F21S10/007 , F21V9/08 , F21V9/30 , F21V9/40 , F21V13/08 , F21Y2101/00 , F21Y2115/00 , F21Y2115/10 , G02B19/0028 , G02B19/0047 , G02B26/008 , G02F2002/006 , G03B21/14 , G03B21/2066 , G03B21/28 , H04N9/3114 , H04N9/3117 , H04N9/315 , H04N9/3155 , H04N2209/043
摘要： A light source comprising an excitation light source for providing excitation light, and an optical wavelength conversion member disposed at a distance from the excitation light source. The optical wavelength conversion member comprises an optical wavelength conversion material for converting the excitation light into stimulated light. The light source also comprises an optical-guiding member that allows the excitation light to be incident on the optical wavelength conversion material, and an optical-collecting member for collecting converted light originating from the optical wavelength conversion material. To separate the paths of the converted light and the excitation light, the etendue of the optical-guiding member is less than or equal to ¼ of the etendue of the optical-collecting member. This allows the optical-guiding member to draw in the excitation light while preventing the excessive escape of the converted light through the optical-guiding member.
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公开(公告)号：US09612511B2
公开(公告)日：2017-04-04
申请号：US13594187
申请日：2012-08-24
CPC分类号： G03B21/204 , G03B33/06
摘要： A solid state light source device for generating a constant broad band light useful in multiple SLM projectors. The light source device includes a blue or UV/near UV excitation light and a moving plate carrying wavelength conversion materials to convert the excitation light into a broad band light. The wavelength conversion materials include red, green, yellow and/or blue phosphors, and may pass some of the blue excitation light. The broad band light outputted by the phosphor plate includes at least two primary color components and has a constant intensity and spectrum as a function of time. The solid state light source device further includes a second light source such as a blue light source, and a light combination device which combines the output light of the moving phosphor plate and the light from the second light source into one beam of constant, broad band light.
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公开(公告)号：US20130250546A1
公开(公告)日：2013-09-26
申请号：US13992144
申请日：2011-12-07
CPC分类号： G03B21/204 , F21K9/64 , F21S10/007 , F21V9/08 , F21V9/30 , F21V9/40 , F21V13/08 , F21Y2101/00 , F21Y2115/00 , F21Y2115/10 , G02B19/0028 , G02B19/0047 , G02B26/008 , G02F2002/006 , G03B21/14 , G03B21/2066 , G03B21/28 , H04N9/3114 , H04N9/3117 , H04N9/315 , H04N9/3155 , H04N2209/043
摘要： A light source comprising an excitation light source (110) for providing excitation light, and an optical wavelength conversion member disposed at a distance from the excitation light source. The optical wavelength conversion member comprises an optical wavelength conversion material (150) for converting the excitation light into stimulated light. The light source also comprises an optical-guiding member that allows the excitation light to be incident on the optical wavelength conversion material, and an optical-collecting member (130A) for collecting stimulated light originating from the optical wavelength conversion material. To separate the paths of the stimulated light and the excitation light, the etendue of the optical-guiding member is less than or equal to ¼ of the etendue of the optical-collecting member. This allows the optical-guiding member to draw in the excitation light while preventing the excessive escape of the stimulated light through the optical-guiding member. The advantages of the light source are that it can separate the paths of the excitation light and the stimulated light, the light path is simple, and the optical members are easy to manufacture.
摘要翻译： 一种光源，包括用于提供激发光的激发光源（110）和与激发光源一定距离设置的光波长转换部件。 光波长转换构件包括用于将激发光转换成受激光的光波长转换材料（150）。 光源还包括允许激发光入射到光波长转换材料上的光学引导部件和用于收集源自光波长转换材料的受激光的光学收集部件（130A）。 为了分离受激光和激发光的路径，光导元件的光密度小于或等于光收集元件的光密度的1/4。 这允许光引导构件在激发光下吸引，同时防止被激发的光通过光导构件的过度逸出。 光源的优点在于它可以分离激发光和受激光的路径，光路简单，并且光学元件易于制造。
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公开(公告)号：US20150062903A1
公开(公告)日：2015-03-05
申请号：US14362756
申请日：2012-08-21
申请人： Fei Hu , Yi Li , Yi Yang , Liangliang Cao
发明人： Fei Hu , Yi Li , Yi Yang , Liangliang Cao
CPC分类号： F21K9/65 , F21V13/02 , G03B21/2033 , G03B21/204 , G03B21/2066
摘要： A light emitting device and a projection system adopting same. The light emitting device (100) comprises a coherent source (110), a diffusing element (120), and a light guide part (140). The coherent source (110) is used for generating coherent light. The diffusing element (120) includes a first surface (121) and a second surface (122) which are opposite to each other, and the diffusing element (120) is used for dispersing the coherent light coming from the coherent source (110) so as to generate incoherent light. The light guide part (140) is provided on the side of the first surface (121) of the diffusing element (120). The light guide part (140) is used for guiding the coherent light emitting from the coherent source (110) to be incident on the first surface (121) so as to form a first light path, guiding a part of incoherent light emitting from the first surface (121) to emit through the first light path, guiding the remaining incoherent light to emit through a second path, and separating the first path and the second path. The luminous flux of the incoherent light emitting through the first light path is less than that of the incoherent light emitting through the second light path.
摘要翻译： 一种发光装置和采用该发光装置的投影系统。 发光器件（100）包括相干光源（110），漫射元件（120）和导光部分（140）。 相干光源（110）用于产生相干光。 扩散元件（120）包括彼此相对的第一表面（121）和第二表面（122），并且漫射元件（120）用于分散来自相干光源（110）的相干光 以产生不相干的光。 导光部（140）设置在漫射元件（120）的第一面（121）侧。 导光部分（140）用于引导从相干光源（110）发射的相干光入射在第一表面（121）上，以便形成第一光路，引导从相干光源 第一表面（121）通过第一光路发射，引导剩余的非相干光通过第二路径发射，并且分离第一路径和第二路径。 通过第一光路发射的非相干光的光通量小于通过第二光路发射的非相干光的光通量。
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公开(公告)号：US08919993B2
公开(公告)日：2014-12-30
申请号：US13235351
申请日：2011-09-17
CPC分类号： F21V7/0025 , F21K9/64 , F21V5/02 , F21V7/0008 , F21V7/0033 , F21V7/0041 , F21V7/045 , F21V7/05 , F21V7/06 , F21V9/30 , F21V13/08 , F21V13/14 , F21Y2115/10
摘要： A light source device includes a LED light source or a wavelength conversion material having a near Lambertian light emitting surface. The light source device includes a light recycling system to reflect small-angle lights (lights closer to the normal direction of the light emitting surface) back to the light source, and a collection system for collecting and outputting large-angle lights (lights farther away from the normal direction). The lights reflected by the light recycling system is scattered by the emitting surface in all directions, where the large-angle scattered lights are collected by the light collection system and the small-angle scattered light is reflected by the light recycling system again. A second excitation light source without wavelength conversion material or a second light source with its own wavelength conversion material may be provided, and the second light is directed to the light emitting surface by appropriate optical components.
摘要翻译： 光源装置包括具有近朗伯光发射表面的LED光源或波长转换材料。 光源装置包括将小角度光（靠近发光面的法线方向的光）反射回光源的光回收系统，以及用于收集和输出大角度灯（更远的光线）的收集系统 从正常方向）。 由光回收系统反射的光被各个方向的发射面散射，其中大角度散射光被光收集系统收集，小角散射光再次被光再循环系统反射。 可以提供没有波长转换材料的第二激发光源或具有其自身的波长转换材料的第二光源，并且第二光通过适当的光学部件被引导到发光表面。
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6.发明授权公开(公告)号：US08474997B2
公开(公告)日：2013-07-02
申请号：US13081931
申请日：2011-04-07
IPC分类号： F21V13/00
CPC分类号： H04N9/3161 , F21V9/30 , F21Y2105/10 , F21Y2115/10 , H04N9/315
摘要： An illumination devices using excitation light and a wavelength conversion material to generated converted light for illumination, where the wavelength conversion material is excited by multiple excitation lights from both sides to achieve increased brightness. The excitation lights incident on the two sides of the wavelength conversion material may have the same color or different colors. Light separation structures are provided on both sides of the wavelength conversion material to separate the excitation light and the converted light. Light separation may be based on color difference or etendue difference of the excitation light and converted light. In one particular example, wavelength conversion material is formed on a surface of an LED which acts as the first excitation light source, and a second excitation light is delivered through a light separation structure onto the other side of the wavelength conversion material.
摘要翻译： 使用激发光和波长转换材料以产生用于照明的转换光的照明装置，其中波长转换材料由两侧的多个激发光激发以实现增加的亮度。 入射到波长转换材料两侧的激发光可以具有相同的颜色或不同的颜色。 在波长转换材料的两侧设置光分离结构，以分离激发光和转换的光。 光分离可以基于激发光和转换光的色差或光度差。 在一个具体示例中，波长转换材料形成在用作第一激发光源的LED的表面上，并且第二激发光通过光分离结构输送到波长转换材料的另一侧。
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7.发明申请公开(公告)号：US20130100639A1
公开(公告)日：2013-04-25
申请号：US13341937
申请日：2011-12-31
申请人： Yi LI , Quan ZHANG , Yi Yang , Fei Hu
发明人： Yi LI , Quan ZHANG , Yi Yang , Fei Hu
CPC分类号： G03B21/2013 , G02B27/149 , G03B21/204 , G03B33/06
摘要： An illumination device and a projection system using the same. The illumination device includes two or more color channels each including one or more light sources for generating a color light. At least one of the color channels includes light sources of a first type for generating a first (narrow band) light and light sources of a second type for generating a second light. The dominant wavelengths of the first and second lights are within 50 nm of each other, and the width of the combined spectrum (sum of normalized spectra of the first and second lights) is greater than the width of the spectrum of the first light by at least 10 nm. A wavelength-based light combiner is used to combine the color lights from the color channels into a combined light
摘要翻译： 照明装置和使用该照明装置的投影系统。 照明装置包括两个或更多个颜色通道，每个颜色通道包括用于产生彩色光的一个或多个光源。 颜色通道中的至少一个包括用于产生第一（窄带）光的第一类型的光源和用于产生第二光的第二类型的光源。 第一和第二光的主波长在彼此的50nm以内，组合光谱的宽度（第一和第二光的归一化光谱之和）大于第一光的光谱宽度 至少10 nm。 使用基于波长的光组合器将来自颜色通道的颜色光组合成组合光
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公开(公告)号：US09989202B2
公开(公告)日：2018-06-05
申请号：US14362756
申请日：2012-08-21
申请人： Fei Hu , Yi Li , Yi Yang , Liangliang Cao
发明人： Fei Hu , Yi Li , Yi Yang , Liangliang Cao
CPC分类号： F21K9/65 , F21V13/02 , G03B21/2033 , G03B21/204 , G03B21/2066
摘要： A light emitting device and a projection system adopting same. The light emitting device comprises a coherent source generating coherent light, a diffusing element, and a light guide part. The diffusing element includes a first surface and a second surface opposite to each other. The diffusing element disperses the coherent light to generate incoherent light. The light guide part is provided on the side of the first surface of the diffusing element and guides the coherent light from the coherent source onto the first surface to form a first light path, guides a part of incoherent light from the first surface through the first light path, guides the remaining incoherent light through a second path, and separates the first and second light paths. The luminous flux of the incoherent light emitting through the first light path is less than that of the incoherent light emitting through the second light path.
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公开(公告)号：US20130070449A1
公开(公告)日：2013-03-21
申请号：US13235351
申请日：2011-09-17
CPC分类号： F21V7/0025 , F21K9/64 , F21V5/02 , F21V7/0008 , F21V7/0033 , F21V7/0041 , F21V7/045 , F21V7/05 , F21V7/06 , F21V9/30 , F21V13/08 , F21V13/14 , F21Y2115/10
摘要： A light source device includes a LED light source or a wavelength conversion material having a near Lambertian light emitting surface. The light source device includes a light recycling system to reflect small-angle lights (lights closer to the normal direction of the light emitting surface) back to the light source, and a collection system for collecting and outputting large-angle lights (lights farther away from the normal direction). The lights reflected by the light recycling system is scattered by the emitting surface in all directions, where the large-angle scattered lights are collected by the light collection system and the small-angle scattered light is reflected by the light recycling system again. A second excitation light source without wavelength conversion material or a second light source with its own wavelength conversion material may be provided, and the second light is directed to the light emitting surface by appropriate optical components.
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公开(公告)号：US20130050981A1
公开(公告)日：2013-02-28
申请号：US13594162
申请日：2012-08-24
CPC分类号： G03B21/204
摘要： A light source includes two excitation light sources generating two respective excitation lights, a filter, and a wavelength conversion material. The second excitation light has a peak wavelength shorter than that of the first excitation light. The transmittance curves of the filter are dependent on the input angle. The first and second excitation lights are inputted to the filter at angles smaller than a first threshold angle, and angles between the first and a third threshold angle, respectively. Both excitation lights pass through the filter to excite the wavelength conversion material, which generates a converted light but reflects some of the excitation lights. Part of the reflected first excitation light reaches the filter at input angles greater than a second threshold angle and is reflected by the filter back to the wavelength conversion material for recycling. The third and second threshold angles are greater than the first threshold angle.
摘要翻译： 光源包括产生两个相应的激发光，滤光器和波长转换材料的两个激发光源。 第二激发光的峰值波长比第一激发光短。 滤光片的透射率曲线取决于输入角度。 第一和第二激励光分别以小于第一阈值角度的角度和第一和第三阈值角度之间的角度输入到滤波器。 两个激发光通过滤光器以激发波长转换材料，其产生转换的光，但反射一些激发光。 反射的第一激发光的一部分以大于第二阈值角的输入角度到达滤光器，并被滤光器反射回波长转换材料以进行再循环。 第三和第二阈值角度大于第一阈值角度。
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