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1. 发明申请

US20060274429A1 Lens system 失效
公开(公告)号：US20060274429A1
公开(公告)日：2006-12-07
申请号：US11398517
申请日：2006-04-05
申请人： Chieh-jen Lee
发明人： Chieh-jen Lee
IPC分类号： G02B15/14
CPC分类号： G02B15/177
摘要： A lens system includes, in sequence from an object side to an image side, a first lens group having negative refractive power; a second lens group having positive refractive power, which includes a composite lens with aspheric resin layers formed on object side and image side thereof, respectively; and a third lens group having positive refractive power. In zooming, the first lens group remains stationary and when performing from the wide-angle end to the telephoto end, the second lens group moves away from the image plane, while the third lens group moves toward the image plane, whereby the distance between the first and second lens groups is decreased, while the distance between the second and third lens groups is increased.

2. 发明授权

US07525738B2 Lens system 失效
标题翻译：镜头系统
公开(公告)号：US07525738B2
公开(公告)日：2009-04-28
申请号：US11398517
申请日：2006-04-05
申请人： Chieh-jen Lee
发明人： Chieh-jen Lee
IPC分类号： G02B15/14 , G02B13/18
CPC分类号： G02B15/177
摘要： A lens system includes, in sequence from an object side to an image side, a first lens group having negative refractive power; a second lens group having positive refractive power, which includes a composite lens with aspheric resin layers formed on object side and image side thereof, respectively; and a third lens group having positive refractive power. In zooming, the first lens group remains stationary and when performing from the wide-angle end to the telephoto end, the second lens group moves away from the image plane, while the third lens group moves toward the image plane, whereby the distance between the first and second lens groups is decreased, while the distance between the second and third lens groups is increased.
摘要翻译：透镜系统从物体侧到像侧依次包括具有负屈光力的第一透镜组; 具有正折射力的第二透镜组，其包括分别在物体侧和其像侧形成有非球面树脂层的复合透镜; 和具有正屈光力的第三透镜组。在变焦时，第一透镜组保持静止，并且当从广角端到望远端执行时，第二透镜组移动离开图像平面，而第三透镜组朝向图像平面移动，从而距离第一和第二透镜组减小，而第二和第三透镜组之间的距离增加。

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