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公开(公告)号：US20130188265A1
公开(公告)日：2013-07-25
申请号：US13818096
申请日：2011-08-11
IPC分类号： G02B13/04
摘要： A high-aperture wide-angle lens for digital image acquisition, comprising five lens elements, as viewed from the object side, i.e. from the left, a first, negative meniscus lens element, a second, positive lens element, a third, positive lens element, a fourth, negative lens element and a fifth, positive meniscus lens element. A diaphragm is arranged between the second lens element and the third lens element. At least three surfaces upstream of the diaphragm and three surfaces downstream of the diaphragm are embodied as aspherical surface. However, further surfaces can also have an aspherical design. On account of its extremely compact design and its outstanding optical properties, the proposed high-aperture wide-angle lens is suitable as an interchangeable lens for so-called “hybrid cameras”.
摘要翻译： 用于数字图像采集的高孔径广角镜头，包括从物体侧观察的五个透镜元件，即从左侧开始的第一负弯月透镜元件，第二正透镜元件，第三正透镜 元件，第四负透镜元件和第五正弯月形透镜元件。 在第二透镜元件和第三透镜元件之间布置有隔膜。 膜片上游的至少三个表面和膜片下游的三个表面被实施为非球面。 然而，另外的表面也可以具有非球面设计。 由于其非常紧凑的设计和出色的光学性能，所提出的高光圈广角镜可适用于所谓“混合照相机”的可互换镜头。
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公开(公告)号：US20130107218A1
公开(公告)日：2013-05-02
申请号：US13697335
申请日：2011-05-06
申请人： Hildegard Ebbesmeier , Lingli Wang , Udo Schauss
发明人： Hildegard Ebbesmeier , Lingli Wang , Udo Schauss
IPC分类号： G02B27/26
CPC分类号： G02B27/26 , G02B13/16 , G03B35/18 , G03B35/26 , H04N13/337 , H04N13/363
摘要： A system for stereoscopic cinema projection comprising at least one projector for projecting two images, one image for a first eye and one image for a second eye of a viewer, is proposed. The beam paths of the light emerging from the projector respectively run through a linear polarizer to a correspondingly assigned projection lens. After passing through the projection lens, the beam paths of the two images, which are different for the eyes of a viewer, run through a radial and respectively a tangential polarization filter and are simultaneously projected, with different polarization states, exactly one on top of the other onto a metallic projection wall. By means of a visual aid for both eyes of a viewer, the lenses of which are configured differently for each eye with a radial and respectively a tangential polarization filter, each partial image is made visible only for the first or left eye or the second or right eye (or vice versa) and the 3D impression is thus generated for the viewer.
摘要翻译： 提出了一种用于立体影院投影的系统，其包括至少一个用于投影两个图像的投影仪，用于第一只眼睛的一个图像和用于观看者的第二只眼睛的一个图像。 从投影仪出射的光的光束路径分别穿过线性偏振器到相应分配的投影透镜。 在通过投影透镜之后，对于观看者的眼睛，两个图像的光束路径穿过径向和分别的切向偏振滤光器并同时投射，具有不同的偏振状态，恰好一个在 另一个在金属投影墙上。 通过对观察者的双眼的视觉辅助，其透镜被配置为具有径向和分别为切向偏振滤光器的每个眼睛不同，每个部分图像仅对于第一或左眼或第二或第二眼睛可见 右眼（或反之亦然），因此为观看者生成3D印象。
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公开(公告)号：US20050117225A1
公开(公告)日：2005-06-02
申请号：US10995484
申请日：2004-11-24
申请人： Hildegard Ebbesmeier
发明人： Hildegard Ebbesmeier
摘要： A projection lens with a short focal length and high initial aperture is proposed. Such projection lenses are used, for example, in cinema projection. The projection lens is configured such that the sum of the overall length and the back focus (12) is between 2.8 times and 4.5 times the total focal length f′. The entrance pupil is at a distance of between 100 mm and 300 mm from the last lens surface (62; 150), which faces the illuminating mirror. The minimum stop number k of the projection lens is 1.7, and the projection lens is therefore also suitable for illuminating mirrors with a high aperture angle (of up to 17°).
摘要翻译： 提出了具有短焦距和高初始孔径的投影透镜。 这种投影透镜例如用于电影放映中。 投影透镜被配置为使得总长度和后焦点（12）的总和在总焦距f'的2.8倍和4.5倍之间。 入射光瞳与面向照明镜的最后一个透镜表面（62; 150）的距离在100mm和300mm之间。 投影透镜的最小停止数k为1.7，因此投影透镜也适用于具有高孔径角（高达17°）的照明镜。
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公开(公告)号：US07057830B2
公开(公告)日：2006-06-06
申请号：US10995484
申请日：2004-11-24
申请人： Hildegard Ebbesmeier
发明人： Hildegard Ebbesmeier
IPC分类号： G02B9/64
摘要： A projection lens with a short focal length and high initial aperture is proposed. Such projection lenses are used, for example, in cinema projection. The projection lens is configured such that the sum of the overall length and the back focus (12) is between 2.8 times and 4.5 times the total focal length f′. The entrance pupil is at a distance of between 100 mm and 300 mm from the last lens surface (62; 150), which faces the illuminating mirror. The minimum stop number k of the projection lens is 1.7, and the projection lens is therefore also suitable for illuminating mirrors with a high aperture angle (of up to 17°).
摘要翻译： 提出了具有短焦距和高初始孔径的投影透镜。 这种投影透镜例如用于电影放映中。 投影透镜被配置为使得总长度和后焦点（12）的总和在总焦距f'的2.8倍和4.5倍之间。 入射光瞳与面向照明镜的最后一个透镜表面（62; 150）的距离在100mm和300mm之间。 投影透镜的最小停止数k为1.7，因此投影透镜也适用于具有高孔径角（高达17°）的照明镜。
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