-
公开(公告)号：US06585378B2
公开(公告)日：2003-07-01
申请号：US09813207
申请日：2001-03-20
IPC分类号： G03B2100
CPC分类号： H04N9/3105 , G02B5/3058 , G02B13/16
摘要： A digital cinema projector (100) for projection of color images onto a display surface comprises a light source (116), which produces a beam of light. Beam-shaping optics (130) homogenize and focus the beam of light and color splitting optics (132) separate focus beam of light into separate color beams. A first modulation optics system comprises a prepolarizer (212), which prepolarizes a first color beam; a wire grid polarization beamsplitter (224), which transmits a first predetermined polarization state of the prepolarized beam; a reflective spatial light modulator (204), which alters the transmitted prepolarized beam with information and reflects the image bearing first color beam through the wire grid polarization beamsplitter (224); and a wire grid polarization analyzer (228), which transmits the image bearing first color beam and attenuates unwanted polarization components. A recombination prism (232) combines the first color beam from the first modulation optical system with other image bearing color beams to create a full color image bearing beam. A projection lens system (150) projects the full color image bearing beam onto the display surface (140).
-
公开(公告)号：US07559654B1
公开(公告)日：2009-07-14
申请号：US11194974
申请日：2005-08-02
CPC分类号： G03B21/14 , G02B26/008 , G02B27/1033 , G02B27/1053 , G02B27/145 , G02B27/149 , G02F1/135 , G03B21/005 , G03B21/006 , G03B21/2073 , H04N9/3105 , H04N9/3129 , H04N9/3164
摘要： A projection apparatus (10) has an LC modulator panel (60) with photoresponsive layer (316), segmented into a first, second, and third portion, each spatially separated. An image writing section (120) forms a first, second, or third image within the corresponding portion of the LC modulator panel by scanning successive lines of image writing light to energize the photoresponsive layer. The image writing section has at least one grating electromechanical system for modulating a narrow-band light source (70) by providing diffracted and non-diffracted orders and a scanning element (98) for directing a line of light toward the LC modulator panel to energize the photoresponsive layer. An illumination section (130) directs the illumination beams for modulation by the LC modulator panel. Polarizing beamsplitter (24r, 24g, 24b), polarize and direct the illumination beams toward the LC modulator panel and directs modulated light toward projection lens (32).
摘要翻译： 一种投影装置（10）具有一个具有光响应层（316）的LC调制器面板（60），其被分割成第一，第二和第三部分，每个空间上分开。 图像写入部分（120）通过扫描连续的图像写入光线来激励光响应层，在LC调制器面板的相应部分内形成第一，第二或第三图像。 图像写入部分具有至少一个用于通过提供衍射和非衍射级调制窄带光源（70）的光栅机电系统和用于将光线引向LC调制器面板以激励的扫描元件（98） 光响应层。 照明部分（130）引导用于由LC调制器面板进行调制的照明光束。 极化分束器（24r，24g，24b）将照明光束偏振并引导到LC调制器面板，并将调制光引导到投影透镜（32）。
-
公开(公告)号：US08172404B2
公开(公告)日：2012-05-08
申请号：US12469751
申请日：2009-05-21
IPC分类号： G03B21/14
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。
-
公开(公告)号：US08172403B2
公开(公告)日：2012-05-08
申请号：US12469727
申请日：2009-05-21
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。
-
公开(公告)号：US06714350B2
公开(公告)日：2004-03-30
申请号：US09977544
申请日：2001-10-15
IPC分类号： G02B530
CPC分类号： G02B5/3058 , G02F1/133528 , Y10S359/90
摘要： A wire grid polarizer (100) for polarizing an incident light beam (130), comprising a substrate (505) having a first surface (410) and a second surface (510); and a first array of parallel, elongated wires disposed on the first surface (410). Each of the wires are spaced apart at a grid period less than a wavelength of the incident light; and a second array of parallel, elongated wires disposed on said second surface (420) where the second array of wires are oriented parallel to the first array of wires.
-
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。
-
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。
-
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。
-
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
158 条记录 (耗时 0.049 秒)
