-
公开(公告)号：US20090290229A1
公开(公告)日：2009-11-26
申请号：US12467950
申请日：2009-05-18
IPC分类号： G02B15/14
CPC分类号： G02B15/173 , G02B27/646
摘要： A zoom lens system includes, in order from the object side to the image side, four lens units having positive, negative, negative and positive refractive powers. A first lens unit includes, in order from the object side to the image side: a front subunit having a negative refractive power; a middle subunit that has a positive refractive power and moves during focusing; and a rear subunit having a positive refractive power. The zoom lens system further includes a variable apex angle prism disposed on the image side of the front subunit. An average Abbe number of materials of a negative lens element and a positive lens element included in the front subunit is set appropriately so as to suppress occurrence of decentering aberration accompanying a variation of a prism apex angle.
摘要翻译： 变焦透镜系统从物体侧到像侧依次包括具有正，负，负和正屈光力的四个透镜单元。 第一透镜单元从物体侧到像侧依次包括具有负折光力的前亚像单元; 具有正折射力并在聚焦期间移动的中间子单元; 以及具有正折光力的后部子单元。 变焦透镜系统还包括设置在前子单元的像侧的可变顶角棱镜。 适当地设置包括在前子单元中的负透镜元件和正透镜元件的材料的平均阿贝数，以便抑制伴随棱镜顶角的变化的偏心像差的发生。
-
公开(公告)号：US07907355B2
公开(公告)日：2011-03-15
申请号：US12467950
申请日：2009-05-18
IPC分类号： G02B9/36
CPC分类号： G02B15/173 , G02B27/646
摘要： A zoom lens system includes, in order from the object side to the image side, four lens units having positive, negative, negative and positive refractive powers. A first lens unit includes, in order from the object side to the image side: a front subunit having a negative refractive power; a middle subunit that has a positive refractive power and moves during focusing; and a rear subunit having a positive refractive power. The zoom lens system further includes a variable apex angle prism disposed on the image side of the front subunit. An average Abbe number of materials of a negative lens element and a positive lens element included in the front subunit is set appropriately so as to suppress occurrence of decentering aberration accompanying a variation of a prism apex angle.
摘要翻译： 变焦透镜系统从物体侧到像侧依次包括具有正，负，负和正屈光力的四个透镜单元。 第一透镜单元从物体侧到像侧依次包括具有负折光力的前亚像单元; 具有正折射力并在聚焦期间移动的中间子单元; 以及具有正折光力的后部子单元。 变焦透镜系统还包括设置在前子单元的像侧的可变顶角棱镜。 适当地设置包括在前子单元中的负透镜元件和正透镜元件的材料的平均阿贝数，以便抑制伴随棱镜顶角的变化的偏心像差的发生。
-
公开(公告)号：US07929222B2
公开(公告)日：2011-04-19
申请号：US12467956
申请日：2009-05-18
IPC分类号： G02B9/36
CPC分类号： G02B15/173 , G02B27/646
摘要： A zoom lens system includes four lens units each having positive, negative, negative and positive refractive powers in the stated order from an object side to an image side. A first lens unit includes a variable apex angle prism on the image side of at least one lens element. In this zoom lens system, a focal length of the first lens unit and imaging magnifications of a second lens unit and a fourth lens unit are set appropriately so as to suppress occurrence of decentering aberration accompanying a variation of a prism apex angle.
摘要翻译： 变焦透镜系统包括四个透镜单元，每个透镜单元具有从物体侧到像侧的所述顺序的正，负，负和正折射力。 第一透镜单元包括至少一个透镜元件的像侧上的可变顶角棱镜。 在该变焦透镜系统中，适当地设定第一透镜单元的焦距和第二透镜单元和第四透镜单元的成像倍率，以抑制伴随棱镜顶角的变化的偏心像差的发生。
-
公开(公告)号：US20090290230A1
公开(公告)日：2009-11-26
申请号：US12467956
申请日：2009-05-18
IPC分类号： G02B15/16
CPC分类号： G02B15/173 , G02B27/646
摘要： A zoom lens system includes four lens units each having positive, negative, negative and positive refractive powers in the stated order from an object side to an image side. A first lens unit includes a variable apex angle prism on the image side of at least one lens element. In this zoom lens system, a focal length of the first lens unit and imaging magnifications of a second lens unit and a fourth lens unit are set appropriately so as to suppress occurrence of decentering aberration accompanying a variation of a prism apex angle.
摘要翻译： 变焦透镜系统包括四个透镜单元，每个透镜单元具有从物体侧到像侧的所述顺序的正，负，负和正折射力。 第一透镜单元包括至少一个透镜元件的像侧上的可变顶角棱镜。 在该变焦透镜系统中，适当地设定第一透镜单元的焦距和第二透镜单元和第四透镜单元的成像倍率，以抑制伴随棱镜顶角的变化的偏心像差的发生。
-
公开(公告)号：US08135267B2
公开(公告)日：2012-03-13
申请号：US11530554
申请日：2006-09-11
申请人： Masaru Sakamoto , Ryuji Nurishi
发明人： Masaru Sakamoto , Ryuji Nurishi
CPC分类号： G02B7/34 , G02B5/205 , G02B27/108 , G02B27/123 , G02B27/143 , G02B27/144 , G02B27/145 , G02B27/16 , G03B13/36 , H04N5/23212
摘要： An image pickup device in which reflectance in a central portion of the splitting optical system is configured large and that in a peripheral portion is configured small, to thereby selectively reflect only a light beam for focus detection in focus detection means and transmit the other portions of the light beam to the image pickup means so that a decrease in an amount of light for the image pickup means can be reduced while securing an amount of light for focus detection.
摘要翻译： 一种图像拾取装置，其中分裂光学系统的中心部分的反射率被构造得较大，并且在周边部分中的反射率被构造得较小，从而在焦点检测装置中仅选择性地仅反射焦点检测用的光束，并将 光束到图像拾取装置，使得可以减少用于图像拾取装置的光量的减少，同时确保用于焦点检测的光量。
-
公开(公告)号：US20070076541A1
公开(公告)日：2007-04-05
申请号：US11530554
申请日：2006-09-11
申请人： Masaru SAKAMOTO , Ryuji Nurishi
发明人： Masaru SAKAMOTO , Ryuji Nurishi
IPC分类号： G11B7/00
CPC分类号： G02B7/34 , G02B5/205 , G02B27/108 , G02B27/123 , G02B27/143 , G02B27/144 , G02B27/145 , G02B27/16 , G03B13/36 , H04N5/23212
摘要： An image pickup device in which reflectance in a central portion of the splitting optical system is configured large and that in a peripheral portion is configured small, to thereby selectively reflect only a light beam for focus detection in focus detection means and transmit the other portions of the light beam to the image pickup means so that a decrease in an amount of light for the image pickup means can be reduced while securing an amount of light for focus detection.
摘要翻译： 一种图像拾取装置，其中分裂光学系统的中心部分的反射率被构造得较大，并且在周边部分中的反射率被构造得较小，从而在焦点检测装置中仅选择性地仅反射焦点检测用的光束，并将 光束到图像拾取装置，使得可以减少用于图像拾取装置的光量的减少，同时确保用于焦点检测的光量。
-
公开(公告)号：US07095563B2
公开(公告)日：2006-08-22
申请号：US11103379
申请日：2005-04-11
申请人： Ryuji Nurishi
发明人： Ryuji Nurishi
摘要： An anamorphic converter, which is disposed at an image side of an image-forming optical system, includes a first lens unit having one of positive and negative optical power, a second lens unit including an anamorphic lens, and a third lens unit having positive optical power, positioned in order from an object side to the image side. The second lens unit is removable from the position between the first lens unit and the third lens unit.
摘要翻译： 设置在图像形成光学系统的像侧的变形转换器包括具有正光焦度和负光焦度之一的第一透镜单元，包括变形透镜的第二透镜单元和具有正光学的第三透镜单元 功率，从物体侧到图像侧依次定位。 第二透镜单元可从第一透镜单元和第三透镜单元之间的位置移除。
-
公开(公告)号：US06989942B1
公开(公告)日：2006-01-24
申请号：US09669664
申请日：2000-09-26
申请人： Ryuji Nurishi
发明人： Ryuji Nurishi
IPC分类号： G02B15/163 , G02B27/64 , G02B15/10
CPC分类号： G02B27/646 , G02B15/173
摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit of positive refractive power, a second lens unit of negative refractive power arranged to move during variation of magnification, a third lens unit arranged to compensate for shift of an image plane due to the variation of magnification, and a fourth lens unit of positive refractive power, wherein the fourth lens unit has a first lens subunit of negative refractive power, and an image is displaced by moving the first lens subunit in such a way as to have a component perpendicular to an optical axis of the zoom lens.
摘要翻译： 变焦透镜从物体侧到像侧依次包括具有正屈光力的第一透镜单元，布置成在放大倍数变化期间移动的负折光力的第二透镜单元，布置成补偿偏移的第三透镜单元 的第一透镜单元，其中第四透镜单元具有负折光力的第一透镜单元，并且通过使第一透镜子单元移动到第二透镜单元的位置，使得图像被移位， 具有垂直于变焦透镜的光轴的分量的方式。
-
公开(公告)号：US06847495B2
公开(公告)日：2005-01-25
申请号：US10651795
申请日：2003-08-29
申请人： Ryuji Nurishi
发明人： Ryuji Nurishi
CPC分类号： G02B15/173 , G02B7/102
摘要： A small zoom lens apparatus capable of carrying out focusing through manual operations in an autofocus mode. The zoom lens apparatus includes a variator lens unit, an object-side focus lens unit placed closer to an object than the variator lens unit and an image plane-side focus lens unit placed closer to an image plane than the variator lens unit. Driving of the object-side focus lens unit through manual operations is allowed when the autofocus mode is set.
摘要翻译： 能够通过自动对焦模式中的手动操作进行聚焦的小变焦透镜装置。 变焦透镜装置包括变倍透镜单元，被放置得比放大透镜单元更靠近物体的物体侧聚焦透镜单元和位于比变倍透镜单元更靠近像面的像平面侧聚焦透镜单元。 当设置自动对焦模式时，允许通过手动操作来驱动物体侧聚焦透镜单元。
-
公开(公告)号：US07903345B2
公开(公告)日：2011-03-08
申请号：US12574360
申请日：2009-10-06
申请人： Ryuji Nurishi
发明人： Ryuji Nurishi
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power and configured to move during zooming, a third lens unit having a positive refractive power and configured to move during zooming, and a fourth lens unit having a positive refractive power and configured not to move for zooming. In the zoom lens, the second lens unit includes at least one positive lens and at least one negative lens. Furthermore, in the zoom lens, average values of Abbe number (ν) and relative partial dispersion (θ) of materials of the at least one negative lens (νna, θna) and average values of Abbe number (ν) and relative partial dispersion (θ) of materials of the at least one positive lens (νpa, θpa) satisfy an appropriate condition.
摘要翻译： 变焦透镜从物体侧到像侧依次包括具有正折光力的第一透镜单元，具有负折光力并被配置为在变焦期间移动的第二透镜单元，具有正折射率的第三透镜单元 功率并且被配置为在变焦期间移动;以及第四透镜单元，其具有正折射能力并且被配置为不移动用于变焦。 在变焦透镜中，第二透镜单元包括至少一个正透镜和至少一个负透镜。 此外，在变焦透镜中，至少一个负透镜的材料的阿贝数（＆ngr;）和相对部分色散（＆amp;重量）的平均值和阿贝数（＆ngr）的平均值 ;和）所述至少一个正透镜（＆ngr; pa，＆amp; tt; pa）的材料的相对部分色散（＆amp; thetas）满足适当的条件。
-
-
-
-
-
-
-
-
-
搜索结果
31 条记录 (耗时 0.021 秒)
