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1. 发明授权

US06995920B2 Anamorphic converter 有权
标题翻译：变形转换器
公开(公告)号：US06995920B2
公开(公告)日：2006-02-07
申请号：US10815203
申请日：2004-03-30
申请人： Ryuji Nurishi
发明人： Ryuji Nurishi
IPC分类号： B02B13/08 , B02B13/12 , B02B15/02
CPC分类号： G02B13/08
摘要： To obtain an anamorphic converter of the rear converter system which is especially most suitable for a converter for the cinema and excellent in optical performance, and in which an effective image surface of an imaging optical system can be sufficiently utilized. The anamorphic converter includes at least an anamorphic lens disposed on an image side of an imaging optical system, and in the anamorphic converter, when a focal length conversion magnification in an arbitrary cross section X containing an optical axis of the anamorphic converter is assigned βx, a focal length conversion magnification in a cross section Y containing an optical axis and being perpendicular to the cross section X is assigned βy, an aspect ratio of an image pickup range in an image surface of the imaging optical system is assigned AR1, and an aspect ratio of an effective area of image pickup means is assigned AR2, the following relationship is established: 0.9
摘要翻译：为了获得后转换器系统的变形转换器，其特别适用于电影用转换器，光学性能优异，可以充分利用成像光学系统的有效图像面。变形转换器至少包括设置在成像光学系统的像侧的变形透镜，并且在变形转换器中，当将包含变形转换器的光轴的任意横截面X中的焦距转换倍率分配为Betax时，分配包含光轴并垂直于横截面X的横截面Y中的焦距转换倍率，将成像光学系统的图像表面中的图像拾取范围的纵横比分配为AR 1，并且 AR 2的图像拾取装置的有效面积的长宽比被建立为以下关系

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