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1. 发明申请

US20120113528A1 IMAGE TAKING APPARATUS 有权
标题翻译：图像采集设备
公开(公告)号：US20120113528A1
公开(公告)日：2012-05-10
申请号：US13278275
申请日：2011-10-21
申请人： Yoshinori ITOH
发明人： Yoshinori ITOH
IPC分类号： G02B15/14
CPC分类号： G02B15/177 , G02B13/22
摘要： An image taking apparatus including a zoom lens; and a solid-state image pickup element, wherein the zoom lens includes, a first lens unit; a second lens unit; and a third lens unit, the first lens unit, the second lens unit and the third lens unit moving during zooming, wherein the first lens unit includes a lens 1a; and a lens 1b, wherein the second lens unit includes a lens 2a; a cemented lens wherein a lens 2b and a lens 2c are cemented; and a lens 2d, and wherein a curvature radius R2cr of an image-side lens surface of the lens 2c, a refractive index n2c of a material of the lens 2c, a focal length ft of an entire system at a telephoto end, an F-number Fnow at a wide-angle end, and a half angle of field ωW at the wide-angle end are appropriately set.
摘要翻译：包括变焦透镜的摄像装置; 和固态图像拾取元件，其中所述变焦透镜包括第一透镜单元; 第二透镜单元; 以及第三透镜单元，所述第一透镜单元，所述第二透镜单元和所述第三透镜单元在变焦期间移动，其中所述第一透镜单元包括透镜1a; 和透镜1b，其中第二透镜单元包括透镜2a; 胶合透镜，其中透镜2b和透镜2c被胶合; 透镜2d，透镜2c的像侧透镜面的曲率半径R2cr，透镜2c的材质的折射率n2c，远摄端的整个系统的焦距ft，F 数字在广角端处，广角端的半角角ωW被适当地设定。

2. 发明申请

US20070242368A1 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING SAME 有权
标题翻译：变焦镜头和图像拍摄装置
公开(公告)号：US20070242368A1
公开(公告)日：2007-10-18
申请号：US11683105
申请日：2007-03-07
申请人： Yoshinori ITOH
发明人： Yoshinori ITOH
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens comprises a first positive lens unit, a second negative lens unit, a third positive lens unit, and a fourth positive lens unit, the lens units being arranged in order from the object side to the image side. The position of the first lens unit at the telephoto end is closer to the object side than the position of the first lens unit at the wide angle end. The lens units move in such a way that the distance between the first and the second lens units at the telephoto end is larger than that at the wide angle end, the distance between the second and the third lens units at the telephoto end is smaller than that at the wide angle end, and the distance between the third and the fourth lens units at the telephoto end is larger than that at the wide angle end.
摘要翻译：变焦透镜包括第一正透镜单元，第二负透镜单元，第三正透镜单元和第四正透镜单元，透镜单元从物侧到像侧依次布置。第一透镜单元在望远端的位置比第一透镜单元在广角端处的位置更靠近物体侧。透镜单元以这样的方式移动，使得在远摄端处的第一和第二透镜单元之间的距离大于广角端处的距离，则在望远端处的第二和第三透镜单元之间的距离小于在广角端处，并且在望远端处的第三和第四透镜单元之间的距离大于广角端处的距离。

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