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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. 发明授权

US08159758B2 Zoom lens system and image pickup apparatus having same 有权
标题翻译：变焦透镜系统和具有该变焦透镜系统的摄像装置
公开(公告)号：US08159758B2
公开(公告)日：2012-04-17
申请号：US12943869
申请日：2010-11-10
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/14
CPC分类号： G02B15/173 , G02B13/009
摘要： A zoom lens system includes, in order from the object side to the image side, first, second, third, fourth lens units respectively having positive, negative, positive, and positive refractive powers. The lens units move from a wide-angle end to a telephoto end such that intervals between adjacent lens units vary during zooming. The first lens unit consists of first-a and first-b lens elements respectively having negative and positive refractive powers, and the second lens unit consists of second-a, second-b, and second-c lens elements respectively having negative, negative, and positive refractive powers. n12 and ν12 respectively represent the refractive index and the Abbe number of the first-b lens element, and fw and ft respectively present the focal length at the wide-angle end and the telephoto end of the zoom lens system. Values for at least n12, ν12, fw and ft are appropriately set based on predetermined conditions.
摘要翻译：变焦透镜系统从物体侧到像侧依次包括分别具有正，正，正和正折射光焦度的第一，第二，第三和第四透镜单元。透镜单元从广角端移动到望远端，使得相邻透镜单元之间的间隔在变焦期间变化。第一透镜单元由分别具有负和正折射光焦度的第一和第三透镜元件组成，并且第二透镜单元由分别具有负的正负折射率的第二透镜单元，第二透镜单元和第二透镜单元组成，和正折射力。 n12和＆ngr; 12分别表示第一b透镜元件的折射率和阿贝数，fw和ft分别表示变焦透镜系统的广角端和远摄端的焦距。至少n12，＆ngr; 12，fw和ft的值根据预定条件适当设定。

3. 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。

4. 发明授权

US06970298B1 Zoom lens system and image capture apparatus having the same 失效
标题翻译：变焦透镜系统和具有该变焦透镜系统的摄像装置
公开(公告)号：US06970298B1
公开(公告)日：2005-11-29
申请号：US11123937
申请日：2005-05-06
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/20 , G02B13/18 , G02B15/14 , G02B15/177
CPC分类号： G02B15/177
摘要： A zoom lens system has four lens units, i.e., in order from an object side to an image side, a first lens unit of negative optical power, a second lens unit of positive optical power, a third lens unit of positive optical power, and a fourth lens unit of positive optical power. During zooming from a wide-angle end to a telephoto end, a space between the first lens unit and the second lens unit decreases, a space between the second lens unit and the third lens unit varies, and a space between the third lens unit and the fourth lens unit increases. Two negative lens elements constituting the first lens unit are made from high refractive index materials. Accordingly, a small-sized zoom lens system capable of obtaining a desired wide angle of field at the wide-angle end, a desired zoom ratio and high optical performance with a minimum number of lens elements can be provided.
摘要翻译：变焦透镜系统具有四个透镜单元，即从物体侧到像侧的顺序为负光焦度的第一透镜单元，正光焦度的第二透镜单元，正光焦度的第三透镜单元，以及具有正光焦度的第四透镜单元。在从广角端到长焦端的变焦期间，第一透镜单元和第二透镜单元之间的空间减小，第二透镜单元和第三透镜单元之间的空间变化，并且第三透镜单元和第四透镜单元增加。构成第一透镜单元的两个负透镜元件由高折射率材料制成。因此，可以提供能够在广角端获得期望的广域视场，期望的变焦比和具有最小数量的透镜元件的高光学性能的小尺寸变焦透镜系统。

5. 发明授权

US06233099B1 Zoom lens and optical apparatus having the same 有权
标题翻译：具有相同的变焦镜头和光学装置
公开(公告)号：US06233099B1
公开(公告)日：2001-05-15
申请号：US09585604
申请日：2000-06-02
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B1514
CPC分类号： G02B15/177
摘要： A zoom lens of the negative lead type includes, in order from the object side, a first lens unit of negative refractive power, a second lens unit of positive refractive power, a third lens unit of negative refractive power consisting of one negative lens, and a fourth lens unit of positive refractive power consisting of one positive lens, wherein, during zooming from the wide-angle end to the telephoto end, all the lens units move along an optical axis in such a manner that the separation between the first lens unit and the second lens unit decreases, the separation between the second lens unit and the third lens unit increases and the separation between the third lens unit and the fourth lens unit decreases.
摘要翻译：负引线型变焦透镜从物体侧依次包括负折射力的第一透镜单元，正屈光力的第二透镜单元，负折射力的第三透镜单元，由一个负透镜组成，以及由一个正透镜组成的具有正折射力的第四透镜单元，其中，在从广角端到望远端的变焦期间，所有透镜单元沿着光轴移动，使得第一透镜单元并且第二透镜单元减小，第二透镜单元和第三透镜单元之间的间隔增加，并且第三透镜单元和第四透镜单元之间的间隔减小。

6. 发明授权

US06219190B1 Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US06219190B1
公开(公告)日：2001-04-17
申请号：US09433372
申请日：1999-11-03
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B1514
CPC分类号： G02B15/161
摘要： A zoom lens is composed of a plurality of lens units. The plurality of lens units includes a movable lens unit having a negative refractive power lying closest to an image side. The movable lens unit has, in order from an object side, a first diffractive optical element and a second diffractive optical element. Where C2a is a phase coefficient in the second order in an equation for phase shape of the first diffractive optical element and C2b is a phase coefficient in the second order in an equation for phase shape of the second diffractive optical element, the following condition is satisfied: 0.7
摘要翻译：变焦透镜由多个透镜单元构成。多个透镜单元包括具有最靠近图像侧的负折光力的可移动透镜单元。可移动透镜单元从物体侧起依次具有第一衍射光学元件和第二衍射光学元件。其中C2a是在第一衍射光学元件的相位形状的等式中的二阶相位系数，C2b是第二衍射光学元件的相位形状的等式中的二阶相位系数，满足以下条件：相位形状的方程式由其中h表示从光轴的高度表示，lambd是参考波长，Cn是n阶相位系数，phi（h）是相位形状。

7. 发明授权

US5815320A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US5815320A
公开(公告)日：1998-09-29
申请号：US799403
申请日：1997-02-12
申请人： Kouji Hoshi , Takeshi Koyama , Yoshinori Itoh , Makoto Misaka , Akihiro Nishio
发明人： Kouji Hoshi , Takeshi Koyama , Yoshinori Itoh , Makoto Misaka , Akihiro Nishio
IPC分类号： G02B15/163 , G02B15/173 , G02B15/14
CPC分类号： G02B15/163 , G02B15/173
摘要： A zoom lens is disclosed comprising, from front to rear, a first lens unit having a positive refractive power, a second lens unit having a positive or negative refractive power, a third lens unit having a positive refractive power, and a fourth lens unit having a negative refractive power, wherein rules of design are set forth in order to minimize the bulk and size of the lens system.
摘要翻译：公开了一种变焦透镜，包括从前到后具有正屈光力的第一透镜单元，具有正或负屈光力的第二透镜单元，具有正折光力的第三透镜单元和具有正折射光焦度的第四透镜单元，负屈光力，其中阐述了设计规则，以便使透镜系统的体积和尺寸最小化。

8. 发明授权

US5576779A Camera system 失效
标题翻译：相机系统
公开(公告)号：US5576779A
公开(公告)日：1996-11-19
申请号：US320555
申请日：1994-10-11
申请人： Keiji Ikemori , Yoshinori Itoh
发明人： Keiji Ikemori , Yoshinori Itoh
IPC分类号： G03B13/12 , G02B7/10 , G02B13/18 , G02B15/16 , G02B23/14 , G03B3/00
CPC分类号： G02B15/177 , G02B7/10 , G03B13/12 , G02B23/145
摘要： A camera system comprising a photographic lens having a plurality of lens units movable along a photographic optical axis when zooming, and a finder optic having a plurality of lens units movable along a finder optical axis when zooming, wherein the amounts of zooming movement of at least one of the lens units of the photographic lens and at least one of the lens units of the finder optic are the same.
摘要翻译：一种照相机系统，包括具有多个透镜单元的照相镜头，所述照相镜头在变焦时可沿摄影光轴移动;以及取景器光学器件，具有可在放大时沿着取景器光轴移动的多个透镜单元，其中至少照相镜头的透镜单元之一和取景器光学元件的至少一个透镜单元是相同的。

9. 发明申请

US20060007560A1 Zoom lens system and image pickup apparatus having the same 有权
公开(公告)号：US20060007560A1
公开(公告)日：2006-01-12
申请号：US11168164
申请日：2005-06-27
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/14
CPC分类号： G02B15/177
摘要： A zoom lens system including, from the object side to the image side, a first lens unit and a second lens unit, where when zooming, the distance between the first lens unit and the second lens unit changes. In at least one exemplary embodiment, the first lens unit includes a first lens element having negative optical power, and a second lens element having positive optical power.

10. 发明申请

US20050280902A1 Zoom lens system and image pickup apparatus including the same 失效
标题翻译：变焦透镜系统和包括其的摄像装置
公开(公告)号：US20050280902A1
公开(公告)日：2005-12-22
申请号：US11154042
申请日：2005-06-15
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/14 , G02B15/177
CPC分类号： G02B15/177
摘要： A zoom lens system in which reductions in the number of lenses and entire lens length are realized is provided. The zoom lens system includes, in order from an object side to an image side, a first lens unit having negative optical power, a second lens unit having positive optical power, and a third lens unit having positive optical power. During zooming from a wide-angle end to a telephoto end, an interval between the first lens unit and the second lens unit reduces and an interval between the second lens unit and the third lens unit changes. An aspherical lens is used for a positive lens element of the first lens unit. Shapes of respective lens elements composing the first lens unit, an interval therebetween, and the like are suitably set.
摘要翻译：提供了实现透镜数量减少和透镜长度全部的变焦透镜系统。变焦透镜系统从物体侧到像侧依次包括具有负光焦度的第一透镜单元，具有正光焦度的第二透镜单元和具有正光焦度的第三透镜单元。在从广角端到长焦端的变焦期间，第一透镜单元和第二透镜单元之间的间隔减小，并且第二透镜单元和第三透镜单元之间的间隔变化。非球面透镜用于第一透镜单元的正透镜元件。适当地设定构成第一透镜单元的各透镜元件的形状，间隔等。

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