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公开(公告)号：US08508676B2
公开(公告)日：2013-08-13
申请号：US13588504
申请日：2012-08-17
IPC分类号： G02F1/1335 , G02F1/13363
CPC分类号： G03B21/28 , G02B27/1053 , G02B27/141 , G02B27/142 , G02B27/145 , H04N9/3161 , H04N9/3167
摘要： An anti-reflective thin film coating formed on an optical surface, comprising a multilayer thin-film stack arranged to suppress reflection of incident polarized light within an incident light wavelength range. The multilayer thin-film stack further provides a reflectance edge transition at a wavelength band that lies outside the incident light wavelength range. The reflectance edge transition is arranged to provide phase difference compensation to the polarized light within the incident polarized light wavelength range.
摘要翻译： 一种形成在光学表面上的抗反射薄膜涂层，包括多个薄膜叠层，其布置成抑制入射光波长范围内的入射偏振光的反射。 多层薄膜叠层进一步提供位于入射光波长范围外的波长带的反射率边缘跃迁。 反射率边缘跃迁被布置成为入射偏振光波长范围内的偏振光提供相位差补偿。
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公开(公告)号：US20110109820A1
公开(公告)日：2011-05-12
申请号：US12616156
申请日：2009-11-11
IPC分类号： G03B21/00 , G02B27/14 , G02F1/1335
CPC分类号： G03B21/28 , G02B27/1053 , G02B27/141 , G02B27/142 , G02B27/145 , H04N9/3161 , H04N9/3167
摘要： A beam combiner for combining a plurality of light beams onto an optical path, comprising: a first dichroic element having a dichroic coating that is disposed to transmit light of a first wavelength band along the optical path and to reflect light of a second wavelength band onto the optical path, and a second dichroic element having a dichroic coating that is disposed to transmit the light of the first and second wavelength bands along the optical path and to reflect light of a third wavelength band onto the optical path. The beam combiner further includes a phase difference compensation multilayer thin-film stack that provides at least one reflectance edge transition that lies outside any of the first, second, and third wavelength bands and which provides compensation for an accumulated phase difference for polarization states of the transiting in at least one of the first, second, and third wavelength bands.
摘要翻译： 一种用于将多个光束组合到光路上的光束组合器，包括：具有二向色涂层的第一二向色元件，其设置成沿着光路透射第一波长带的光并将第二波长带的光反射到 光路，以及具有二向色涂层的第二二向色元件，其被设置为沿着光路透射第一和第二波长带的光并将第三波长带的光反射到光路上。 光束组合器还包括相位差补偿多层薄膜叠层，其提供位于第一，第二和第三波长带之外的至少一个反射率边缘跃迁，并且对于针对第一，第二和第三波长带的偏振状态的累积相位差提供补偿 在第一，第二和第三波长带中的至少一个中转移。
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公开(公告)号：US08305502B2
公开(公告)日：2012-11-06
申请号：US12616156
申请日：2009-11-11
IPC分类号： G02F1/1335
CPC分类号： G03B21/28 , G02B27/1053 , G02B27/141 , G02B27/142 , G02B27/145 , H04N9/3161 , H04N9/3167
摘要： A beam combiner for combining a plurality of light beams onto an optical path, comprising: a first dichroic element having a dichroic coating that is disposed to transmit light of a first wavelength band along the optical path and to reflect light of a second wavelength band onto the optical path, and a second dichroic element having a dichroic coating that is disposed to transmit the light of the first and second wavelength bands along the optical path and to reflect light of a third wavelength band onto the optical path. The beam combiner further includes a phase difference compensation multilayer thin-film stack that provides at least one reflectance edge transition that lies outside any of the first, second, and third wavelength bands and which provides compensation for an accumulated phase difference for polarization states of the transiting in at least one of the first, second, and third wavelength bands.
摘要翻译： 一种用于将多个光束组合到光路上的光束组合器，包括：具有二向色涂层的第一二向色元件，其设置成沿着光路透射第一波长带的光并将第二波长带的光反射到 光路，以及具有二向色涂层的第二二向色元件，其被设置为沿着光路透射第一和第二波长带的光并将第三波长带的光反射到光路上。 光束组合器还包括相位差补偿多层薄膜叠层，其提供位于第一，第二和第三波长带之外的至少一个反射率边缘跃迁，并且对于针对第一，第二和第三波长带的偏振状态的累积相位差提供补偿 在第一，第二和第三波长带中的至少一个中转移。
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公开(公告)号：US20120307362A1
公开(公告)日：2012-12-06
申请号：US13588504
申请日：2012-08-17
IPC分类号： G02B5/30
CPC分类号： G03B21/28 , G02B27/1053 , G02B27/141 , G02B27/142 , G02B27/145 , H04N9/3161 , H04N9/3167
摘要： An anti-reflective thin film coating formed on an optical surface, comprising a multilayer thin-film stack arranged to suppress reflection of incident polarized light within an incident light wavelength range. The multilayer thin-film stack further provides a reflectance edge transition at a wavelength band that lies outside the incident light wavelength range. The reflectance edge transition is arranged to provide phase difference compensation to the polarized light within the incident polarized light wavelength range.
摘要翻译： 一种形成在光学表面上的抗反射薄膜涂层，包括多个薄膜叠层，其布置成抑制入射光波长范围内的入射偏振光的反射。 多层薄膜叠层进一步提供位于入射光波长范围外的波长带的反射率边缘跃迁。 反射率边缘跃迁被布置成为入射偏振光波长范围内的偏振光提供相位差补偿。
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公开(公告)号：US07926951B2
公开(公告)日：2011-04-19
申请号：US12171916
申请日：2008-07-11
IPC分类号： H04N15/00
CPC分类号： G03B21/28 , H04N9/3161 , H04N13/324 , H04N13/341 , H04N13/363 , H04N13/365
摘要： A digital image projector includes a plurality of light modulation assemblies and a dichroic combiner. Each light modulation assembly includes at least one laser light source configured to provide an illumination beam, an optional a coated surface, and a spatial light modulator. If the coated surface is present, the respective laser light source is configured to direct the illumination beam to the coated surface, which directs the illumination beam toward the respective spatial light modulator. Otherwise, the respective laser light source is configured to direct the illumination beam directly toward the respective spatial light modulator. The spatial light modulator redirects output modulated light back to the coated surface, if present, and out of the corresponding light modulation assembly. The dichroic combiner directs the output modulated light from each of the plurality of light modulation assemblies toward a projection lens for projection onto a display surface.
摘要翻译： 数字图像投影仪包括多个光调制组件和二向色组合器。 每个光调制组件包括被配置为提供照明光束，可选的涂覆表面和空间光调制器的至少一个激光光源。 如果存在涂覆表面，则相应的激光源被配置为将照明光束引导到涂覆表面，其将照明光束引向相应的空间光调制器。 否则，相应的激光源被配置为将照明光束直接引导到相应的空间光调制器。 空间光调制器将输出调制光重定向到涂覆表面（如果存在）并且从相应的光调制组件出来。 二向色组合器将来自多个光调制组件中的每一个的输出调制光朝向投影透镜投射到显示表面上。
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公开(公告)号：US20100007852A1
公开(公告)日：2010-01-14
申请号：US12171916
申请日：2008-07-11
CPC分类号： G03B21/28 , H04N9/3161 , H04N13/324 , H04N13/341 , H04N13/363 , H04N13/365
摘要： A digital image projector includes a plurality of light modulation assemblies and a dichroic combiner. Each light modulation assembly includes at least one laser light source configured to provide an illumination beam, an optional a coated surface, and a spatial light modulator. If the coated surface is present, the respective laser light source is configured to direct the illumination beam to the coated surface, which directs the illumination beam toward the respective spatial light modulator. Otherwise, the respective laser light source is configured to direct the illumination beam directly toward the respective spatial light modulator. The spatial light modulator redirects output modulated light back to the coated surface, if present, and out of the corresponding light modulation assembly. The dichroic combiner directs the output modulated light from each of the plurality of light modulation assemblies toward a projection lens for projection onto a display surface.
摘要翻译： 数字图像投影仪包括多个光调制组件和二向色组合器。 每个光调制组件包括被配置为提供照明光束，可选的涂覆表面和空间光调制器的至少一个激光光源。 如果存在涂覆表面，则相应的激光源被配置为将照明光束引导到涂覆表面，其将照明光束引向相应的空间光调制器。 否则，相应的激光源被配置为将照明光束直接引导到相应的空间光调制器。 空间光调制器将输出调制光重定向到涂覆表面（如果存在）并且从相应的光调制组件出来。 二向色组合器将来自多个光调制组件中的每一个的输出调制光朝向投影透镜投射到显示表面上。
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公开(公告)号：US08504328B2
公开(公告)日：2013-08-06
申请号：US12784521
申请日：2010-05-21
IPC分类号： G06F17/50
摘要： A method for designing an imaging lens having reduced susceptibility to thermally-induced stress birefringence, the imaging lens having first and second groups of lens elements located either side of an aperture stop, the method comprising: defining a set of lens design attributes; defining a set of lens performance criteria including a thermally-induced stress birefringence performance criterion; defining a first set of candidate glasses having a negligible susceptibility to thermal stress birefringence and a second set of candidate glasses having at most a moderate susceptibility to thermal stress birefringence; selecting glasses for lens elements that are located adjacent to the aperture stop from the first set of candidate glasses; selecting glasses for the remaining lens elements from the first or second sets of candidate glasses; and using a computer processor to determine a lens design for the imaging lens.
摘要翻译： 一种用于设计对热诱导应力双折射具有降低的敏感性的成像透镜的方法，所述成像透镜具有位于孔径光阑的任一侧的第一和第二组透镜元件，所述方法包括：限定一组透镜设计属性; 定义一组透镜性能标准，包括热诱导应力双折射性能标准; 限定对热应力双折射具有可忽略的敏感性的第一组候选眼镜和对热应力双折射具有至多中度敏感性的第二组候选眼镜; 从第一组候选眼镜选择邻近孔径光阑的透镜元件的眼镜; 从第一组或第二组候选眼镜中选择剩余透镜元件的眼镜; 并使用计算机处理器来确定用于成像透镜的透镜设计。
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公开(公告)号：US08469519B2
公开(公告)日：2013-06-25
申请号：US12816579
申请日：2010-06-16
IPC分类号： G03B21/00
CPC分类号： H04N9/3132 , G03B21/2033 , G03B21/567 , G03B21/60
摘要： A projection apparatus for producing color images having reduced speckle artifacts comprising: at least three narrow band light sources having first, second and third visible wavelength bands; a digital image source providing color digital image data; at least one spatial light modulator for forming a color image using light responsive to the color digital image data; a projection display surface including a reflective layer that reflects incident illumination in the first, second, and third wavelength bands; and a fluorescent agent that absorbs a fraction of the incident light in the first visible wavelength bands and emits light in a corresponding first emissive visible wavelength band; and a projection lens that projects the color image onto the projection display surface; wherein return light from the projection display surface contains light in both the first incident visible wavelength band and the first emissive visible wavelength band, thereby reducing speckle artifacts.
摘要翻译： 一种用于产生具有减少的散斑伪像的彩色图像的投影装置，包括：至少三个具有第一，第二和第三可见波长带的窄带光源; 提供彩色数字图像数据的数字图像源; 至少一个空间光调制器，用于响应于彩色数字图像数据的光形成彩色图像; 投影显示表面，包括反射层，其反射第一，第二和第三波长带中的入射照明; 以及荧光剂，其吸收所述第一可见波长带中的入射光的一部分并发射相应的第一发射可见波长带中的光; 以及将彩色图像投影到投影显示面上的投影透镜; 其中来自投影显示表面的返回光在第一入射可见波长带和第一发射可见波长带中包含光，从而减少散斑伪像。
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公开(公告)号：US20110310303A1
公开(公告)日：2011-12-22
申请号：US12816579
申请日：2010-06-16
CPC分类号： H04N9/3132 , G03B21/2033 , G03B21/567 , G03B21/60
摘要： A projection apparatus for producing color images having reduced speckle artifacts comprising: at least three narrow band light sources having first, second and third visible wavelength bands; a digital image source providing color digital image data; at least one spatial light modulator for forming a color image using light responsive to the color digital image data; a projection display surface including a reflective layer that reflects incident illumination in the first, second, and third wavelength bands; and a fluorescent agent that absorbs a fraction of the incident light in the first visible wavelength bands and emits light in a corresponding first emissive visible wavelength band; and a projection lens that projects the color image onto the projection display surface; wherein return light from the projection display surface contains light in both the first incident visible wavelength band and the first emissive visible wavelength band, thereby reducing speckle artifacts.
摘要翻译： 一种用于产生具有减少的散斑伪像的彩色图像的投影装置，包括：至少三个具有第一，第二和第三可见波长带的窄带光源; 提供彩色数字图像数据的数字图像源; 至少一个空间光调制器，用于响应于彩色数字图像数据的光形成彩色图像; 投影显示表面，包括反射层，其反射第一，第二和第三波长带中的入射照明; 以及荧光剂，其吸收所述第一可见波长带中的入射光的一部分并发射相应的第一发射可见波长带中的光; 以及将彩色图像投影到投影显示面上的投影透镜; 其中来自投影显示表面的返回光在第一入射可见波长带和第一发射可见波长带中包含光，从而减少斑点伪像。
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公开(公告)号：US20100296533A1
公开(公告)日：2010-11-25
申请号：US12469718
申请日：2009-05-21
IPC分类号： H01S3/13
CPC分类号： G02B27/48 , G02B3/0056 , G02B5/02 , G03B21/2033 , G03B21/208 , H04N9/3161
摘要： In a coherent light projection system including an image forming system, a relay system, a speckle reduction element, and a projection subsystem, the relay system can have a first f-number, and the projection subsystem can have a second f-number less than the first f-number. The relay system can have a first working distance, and the projection subsystem can have a second working distance less than the first working distance. The image forming system can project an initial image having a first size, and an intermediate image can have a second size greater than or equal to the first size. The speckle reduction element can have a curved surface through which the intermediate image is transferred. The speckle reduction element can include a lenslet arrangement formed on a surface thereof. The speckle reduction element can be moved in a direction parallel to an optical axis of the speckle reduction element.
摘要翻译： 在包括图像形成系统，中继系统，散斑减少元件和投影子系统的相干光投射系统中，中继系统可以具有第一f数，并且投影子系统可以具有小于 第一个f号码。 继电器系统可以具有第一工作距离，并且投影子系统可以具有小于第一工作距离的第二工作距离。 图像形成系统可以投影具有第一尺寸的初始图像，并且中间图像可以具有大于或等于第一尺寸的第二尺寸。 斑点减少元件可以具有中间图像被转印通过的弯曲表面。 斑点减少元件可以包括在其表面上形成的小透镜布置。 斑点减少元件可以在平行于散斑减少元件的光轴的方向上移动。
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