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1. 发明授权

US08446680B2 Zoom lens and imaging apparatus 有权
标题翻译：变焦镜头和成像设备
公开(公告)号：US08446680B2
公开(公告)日：2013-05-21
申请号：US13445555
申请日：2012-04-12
申请人： Hideki Kai , Makoto Kanai
发明人： Hideki Kai , Makoto Kanai
IPC分类号： G02B15/14 , G02B15/15
CPC分类号： G02B15/173 , G02B13/18
摘要： A zoom lens includes a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a fourth lens group having positive refractive power, the first, second, third, and fourth lens groups being arranged in order from an object side, and satisfies conditional expression (1) and conditional expression (2) below, (1) 0.95
摘要翻译：变焦透镜包括具有正折光力的第一透镜组，具有负屈光力的第二透镜组，具有正折光力的第三透镜组和具有正屈光力的第四透镜组，第一，第二，第三和第四透镜组从物体侧依次排列，并且满足以下条件表达式（1）和条件表达式（2）：（1）0.95 <| fw12 | / fw <1.2和（2）140

2. 发明申请

US20120307129A1 ZOOM LENS AND IMAGING APPARATUS 有权
标题翻译：变焦镜头和成像装置
公开(公告)号：US20120307129A1
公开(公告)日：2012-12-06
申请号：US13445555
申请日：2012-04-12
申请人： Hideki Kai , Makoto Kanai
发明人： Hideki Kai , Makoto Kanai
IPC分类号： H04N5/262 , G02B15/14
CPC分类号： G02B15/173 , G02B13/18
摘要： A zoom lens includes a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a fourth lens group having positive refractive power, the first, second, third, and fourth lens groups being arranged in order from an object side, and satisfies conditional expression (1) and conditional expression (2) below, (1) 0.95
摘要翻译：变焦透镜包括具有正折光力的第一透镜组，具有负屈光力的第二透镜组，具有正折光力的第三透镜组和具有正屈光力的第四透镜组，第一，第二，第三和第四透镜组从物体侧依次排列，并满足以下条件表达式（1）和条件表达式（2）：（1）0.95 <| fw12 | / fw <1.2和（2）140

3. 发明申请

US20130057751A1 VARIABLE FOCAL LENGTH LENS SYSTEM AND IMAGING APPARATUS 有权
标题翻译：可变焦度长度镜头系统和成像设备
公开(公告)号：US20130057751A1
公开(公告)日：2013-03-07
申请号：US13571594
申请日：2012-08-10
申请人： Motoyuki Ohtake , Hideki Kai , Hiroyuki Matsumoto
发明人： Motoyuki Ohtake , Hideki Kai , Hiroyuki Matsumoto
IPC分类号： G02B15/14 , H04N5/232
CPC分类号： G02B15/173 , G02B15/14 , G02B15/20
摘要： A variable focal length lens system including: a first lens group having positive power; a second lens group having negative power; a third lens group having positive power; and a fourth lens group having positive power sequentially arranged from a side where an object is present. An aperture stop is disposed between the second and third lens groups. The first to fourth lens groups are so moved that the distance between the first and second lens groups increases, the distance between the second and third lens groups decreases, and the distance between the third and fourth lens groups decreases when a lens position setting is changed from a wide angle end state to a telescopic end state. The third lens group includes a negative lens and a positive lens disposed on the image side thereof. The variable focal length lens system satisfies the following conditional expression. 0.35
摘要翻译：一种可变焦距透镜系统，包括：具有正光焦度的第一透镜组; 具有负功率的第二透镜组; 具有正功率的第三透镜组; 以及从存在物体的一侧顺序排列的具有正功率的第四透镜组。孔径光阑设置在第二和第三透镜组之间。第一至第四透镜组被移动，使得第一和第二透镜组之间的距离增加，第二和第三透镜组之间的距离减小，并且当透镜位置设置改变时第三透镜组与第四透镜组之间的距离减小从广角端状态到伸缩端状态。第三透镜组包括位于其像侧的负透镜和正透镜。可变焦距透镜系统满足以下条件表达式。 0.35

4. 发明授权

US08922907B2 Variable focal length lens system and imaging apparatus 有权
标题翻译：可变焦距透镜系统和成像装置
公开(公告)号：US08922907B2
公开(公告)日：2014-12-30
申请号：US13571594
申请日：2012-08-10
申请人： Motoyuki Ohtake , Hideki Kai , Hiroyuki Matsumoto
发明人： Motoyuki Ohtake , Hideki Kai , Hiroyuki Matsumoto
IPC分类号： G02B15/14 , G02B15/173 , G02B15/20
CPC分类号： G02B15/173 , G02B15/14 , G02B15/20
摘要： A variable focal length lens system including: a first lens group having positive power; a second lens group having negative power; a third lens group having positive power; and a fourth lens group having positive power sequentially arranged from a side where an object is present. An aperture stop is disposed between the second and third lens groups. The first to fourth lens groups are so moved that the distance between the first and second lens groups increases, the distance between the second and third lens groups decreases, and the distance between the third and fourth lens groups decreases when a lens position setting is changed from a wide angle end state to a telescopic end state. The third lens group includes a negative lens and a positive lens disposed on the image side thereof. The variable focal length lens system satisfies the conditional expression, 0.35
摘要翻译：一种可变焦距透镜系统，包括：具有正光焦度的第一透镜组; 具有负功率的第二透镜组; 具有正功率的第三透镜组; 以及从存在物体的一侧顺序排列的具有正功率的第四透镜组。孔径光阑设置在第二和第三透镜组之间。第一至第四透镜组被移动，使得第一和第二透镜组之间的距离增加，第二和第三透镜组之间的距离减小，并且当透镜位置设置改变时第三透镜组与第四透镜组之间的距离减小从广角端状态到伸缩端状态。第三透镜组包括位于其像侧的负透镜和正透镜。可变焦距透镜系统满足条件表达式0.35

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