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公开(公告)号：US20130235464A1
公开(公告)日：2013-09-12
申请号：US13810744
申请日：2011-07-29
IPC分类号： G02B9/34
摘要： Wide-angle projection lens, as well as optical engines and projection display devices comprising such projections lens are described. In one embodiment, a wide-angle projection lens is described comprising in sequential order from a screen side a first lens group of negative refractive power, a second lens group of positive refractive power, a third lens group of positive refractive power; and a fourth lens group of positive refractive power. At least one lens group has an aspheric surface. The ratio of the focal length of the wide-angle projection lens (F) to the focal length of each of the lens groups (F1, F2, F3, and F4) is such that |F1/F|>1.3, F2/F>2, 1
摘要翻译： 广角投影透镜以及包括这种投影透镜的光学引擎和投影显示装置被描述。 在一个实施例中，广角投影透镜被描述为从屏幕侧依次顺序包括负屈光力的第一透镜组，正屈光力的第二透镜组，正折光力的第三透镜组; 以及具有正屈光力的第四透镜组。 至少一个透镜组具有非球面。 广角投影透镜（F）的焦距与每个透镜组（F1，F2，F3和F4）的焦距的比例使得| F1 / F |> 1.3，F2 / F > 2,1
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2.发明申请公开(公告)号：US20140141725A1
公开(公告)日：2014-05-22
申请号：US14130645
申请日：2012-07-27
申请人： Ronald D. Jesme , Craig R. Schardt , Patrick M. Campbell , Patrick A. Thomas , Ernesto M. Rodriguez, JR. , George D. Kokkosoulis , Daniel A. Syrstad , Douglas S. Parker
发明人： Ronald D. Jesme , Craig R. Schardt , Patrick M. Campbell , Patrick A. Thomas , Ernesto M. Rodriguez, JR. , George D. Kokkosoulis , Daniel A. Syrstad , Douglas S. Parker
IPC分类号： H04W76/02
摘要： A wireless presentation system includes communication means for line-of-sight communication links such that an association between a content holder and a desired presentation device can be automatically established using line-of-sight communication links.
摘要翻译： 无线演示系统包括用于视线通信链路的通信装置，使得可以使用视线通信链路自动建立内容保持器和期望的呈现设备之间的关联。
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公开(公告)号：US20130314677A1
公开(公告)日：2013-11-28
申请号：US13984324
申请日：2012-02-02
IPC分类号： G03B21/14
CPC分类号： G03B21/145 , G03B17/54 , H04N9/3141 , H04N9/3173
摘要： A projector includes a cavity configured to accommodate handheld electronic devices having at least one of different sizes and shapes, a communicating unit configured to electrically communicate with a handheld electronic device that is disposed in the cavity, and a projection subsystem configured to project an image that is at least partially formed by a handheld electronic device that is disposed in the cavity.
摘要翻译： 一种投影仪，包括：腔体，其配置成容纳具有不同尺寸和形状中的至少一种的手持式电子设备;通信单元，被配置为与设置在所述空腔中的手持式电子设备电通信;以及投影子系统， 至少部分地由设置在空腔中的手持电子设备形成。
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公开(公告)号：US20110075269A1
公开(公告)日：2011-03-31
申请号：US12956088
申请日：2010-11-30
CPC分类号： G02B13/16 , G02B13/06 , G02B13/22 , G03B21/005
摘要： A front projection display device includes an optical engine including an illumination system, an imaging system, and projection optics. The projection optics include a first lens group of negative refractive power that has at least one aspheric surface. The projection optics output an image at a half field angle of at least 45°, where the image has substantially no distortion. For example, when the first lens group is placed at a distance of less than 1 meter from a viewing screen, the output image has a size of about 40 inches diagonal or greater, and requires substantially no keystone correction. In other aspects, the optical engine can be implemented in a wall-mounted projection system, a multimedia system, a compact integrated monitor system, and a portable projection unit.
摘要翻译： 前投影显示装置包括具有照明系统，成像系统和投影光学元件的光学引擎。 投影光学器件包括具有至少一个非球面的负屈光力的第一透镜组。 投影光学器件以至少45°的半视角输出图像，其中图像基本上没有失真。 例如，当将第一透镜组放置在距离观察屏幕小于1米的距离处时，输出图像具有约40英寸对角线或更大的尺寸，并且基本上不需要梯形失真校正。 在其他方面，光学引擎可以实现在壁挂式投影系统，多媒体系统，小型集成监视器系统和便携式投影单元中。
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