公开(公告)号：US20100045808A1

公开(公告)日：2010-02-25

申请号：US12519211

申请日：2007-11-27

申请人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

发明人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

IPC分类号： H04N5/225 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power; a third lens group with a negative optical power; and a fourth lens group with a positive optical power. An interval between the first lens group and the second lens group decreases when a power of the variable-power optical system varies from a wide-angle end to a telephoto end. The second lens group includes at least one aspheric surface. The variable-power optical system satisfies the predetermined conditional expressions.

摘要翻译： 可变功率光学系统从其物体侧依次包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组; 具有负光焦度的第三透镜组; 以及具有正光焦度的第四透镜组。 当可变功率光学系统的功率从广角端到远摄端变化时，第一透镜组和第二透镜组之间的间隔减小。 第二透镜组包括至少一个非球面。 可变功率光学系统满足预定条件表达式。

公开(公告)号：US07859764B2

公开(公告)日：2010-12-28

申请号：US12519566

申请日：2007-12-06

申请人： Yasunari Fukuta ,  Soh Ohzawa ,  Keiji Matsusaka

发明人： Yasunari Fukuta ,  Soh Ohzawa ,  Keiji Matsusaka

IPC分类号： G02B15/14

CPC分类号： G02B15/177 ,  G02B13/004 ,  G02B13/006 ,  G02B13/009

摘要： A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power, moving when the power of the variable-power optical system varies; and a third lens group with a positive or negative optical power. The first lens group includes two or more lenses including one positive lens and one negative lens which include at least two or more lenses made of a plastic material. The variable-power optical system satisfies the predetermined conditional expressions relating to is a focal length of the first lens, a focal length of the second lens, a composite focal length of the total optical system, and an image-forming magnification of the second lens group at a telephoto end.

摘要翻译： 可变功率光学系统从其物体侧依次包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组，当可变功率光学系统的功率变化时移动; 以及具有正或负光焦度的第三透镜组。 第一透镜组包括两个或更多个透镜，包括一个正透镜和一个负透镜，其包括由塑料材料制成的至少两个或更多透镜。 可变功率光学系统满足与第一透镜的焦距，第二透镜的焦距，总光学系统的复合焦距以及第二透镜的成像倍率相关的预定条件表达式 在长焦端组。

公开(公告)号：US08270095B2

公开(公告)日：2012-09-18

申请号：US12519211

申请日：2007-11-27

申请人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

发明人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power; a third lens group with a negative optical power; and a fourth lens group with a positive optical power. An interval between the first lens group and the second lens group decreases when a power of the variable-power optical system varies from a wide-angle end to a telephoto end. The second lens group includes at least one aspheric surface. The variable-power optical system satisfies the predetermined conditional expressions.

摘要翻译： 可变功率光学系统从其物体侧依次包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组; 具有负光焦度的第三透镜组; 以及具有正光焦度的第四透镜组。 当可变功率光学系统的功率从广角端到远摄端变化时，第一透镜组和第二透镜组之间的间隔减小。 第二透镜组包括至少一个非球面。 可变功率光学系统满足预定条件表达式。

公开(公告)号：US07982968B2

公开(公告)日：2011-07-19

申请号：US12518319

申请日：2007-11-27

申请人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

发明人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

IPC分类号： G02B15/14

CPC分类号： G02B15/177 ,  G02B13/004 ,  G02B13/009

摘要： A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power; and a third lens group with a negative optical power, where an interval between the first lens group and the second lens group decreases when a power of the variable-power optical system varies from a wide-angle end to a telephoto end. The first lens group comprises a negative lens and a positive lens. The second lens group consists of a positive lens and a negative lens, and includes at least one aspheric surface. The variable-power optical system satisfies the predetermined conditional expressions.

摘要翻译： 可变功率光学系统从其物体侧依次包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组; 以及具有负光焦度的第三透镜组，其中当可变功率光学系统的功率从广角端到远摄端变化时，第一透镜组和第二透镜组之间的间隔减小。 第一透镜组包括负透镜和正透镜。 第二透镜组由正透镜和负透镜组成，并且包括至少一个非球面。 可变功率光学系统满足预定条件表达式。

公开(公告)号：US20100033834A1

公开(公告)日：2010-02-11

申请号：US12518319

申请日：2007-11-27

申请人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

发明人： Keiji Matsusaka ,  Soh Ohzawa ,  Yasunari Fukuta

IPC分类号： G02B15/177

CPC分类号： G02B15/177 ,  G02B13/004 ,  G02B13/009

摘要： A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power; and a third lens group with a negative optical power, where an interval between the first lens group and the second lens group decreases when a power of the variable-power optical system varies from a wide-angle end to a telephoto end. The first lens group comprises a negative lens and a positive lens. The second lens group consists of a positive lens and a negative lens, and includes at least one aspheric surface. The variable-power optical system satisfies the predetermined conditional expressions.

摘要翻译： 可变功率光学系统从其物体侧依次包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组; 以及具有负光焦度的第三透镜组，其中当可变功率光学系统的功率从广角端到望远端变化时，第一透镜组和第二透镜组之间的间隔减小。 第一透镜组包括负透镜和正透镜。 第二透镜组由正透镜和负透镜组成，并且包括至少一个非球面。 可变功率光学系统满足预定条件表达式。

公开(公告)号：US20090303612A1

公开(公告)日：2009-12-10

申请号：US12519566

申请日：2007-12-06

申请人： Yasunari Fukuta ,  Soh Ohzawa ,  Keiji Matsusaka

发明人： Yasunari Fukuta ,  Soh Ohzawa ,  Keiji Matsusaka

IPC分类号： G02B15/177

CPC分类号： G02B15/177 ,  G02B13/004 ,  G02B13/006 ,  G02B13/009

摘要： A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power, moving when the power of the variable-power optical system varies; and a third lens group with a positive or negative optical power. The first lens group includes two or more lenses including one positive lens and one negative lens which include at least two or more lenses made of a plastic material. The variable-power optical system satisfies the predetermined conditional expressions relating to is a focal length of the first lens, a focal length of the second lens, a composite focal length of the total optical system, and an image-forming magnification of the second lens group at a telephoto end.

摘要翻译： 可变功率光学系统从其物体侧依次包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组，当可变功率光学系统的功率变化时移动; 以及具有正或负光焦度的第三透镜组。 第一透镜组包括两个或更多个透镜，包括一个正透镜和一个负透镜，其包括由塑料材料制成的至少两个或更多透镜。 可变功率光学系统满足与第一透镜的焦距，第二透镜的焦距，总光学系统的复合焦距以及第二透镜的成像倍率相关的预定条件表达式 在长焦端组。

公开(公告)号：US07145732B2

公开(公告)日：2006-12-05

申请号：US11079594

申请日：2005-03-14

申请人： Keiji Matsusaka ,  Soh Ohzawa

发明人： Keiji Matsusaka ,  Soh Ohzawa

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： In a zoom optical system for forming an optical image of an object onto a light receiving plane of an image sensor for converting the optical image into an electrical signal, and performing zooming by varying distances between a first lens group and a second lens group, and between the second lens group and a third lens group in an optical axis direction, the zoom optical system includes: the first lens group having a negative optical power; the second lens group having a positive optical power; and the third lens group having a positive optical power, wherein the first lens group is composed of two or more lens elements including at least one positive lens element and at least one negative lens element, the second lens group is composed of two or more lens elements including at least one positive lens element and at least one negative lens element, and all the lens elements in the first lens group are made of a plastic material.

摘要翻译： 在用于将物体的光学图像形成到用于将光学图像转换为电信号的图像传感器的光接收平面上并且通过改变第一透镜组和第二透镜组之间的距离进行变焦的变焦光学系统中，以及 在第二透镜组和第三透镜组之间沿光轴方向，变焦光学系统包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组; 和具有正光焦度的第三透镜组，其中第一透镜组由包括至少一个正透镜元件和至少一个负透镜元件的两个或更多个透镜元件组成，第二透镜组由两个或更多个透镜 包括至少一个正透镜元件和至少一个负透镜元件的元件，并且第一透镜组中的所有透镜元件由塑料材料制成。

公开(公告)号：US20060087747A1

公开(公告)日：2006-04-27

申请号：US11254526

申请日：2005-10-20

申请人： Soh Ohzawa ,  Keiji Matsusaka

发明人： Soh Ohzawa ,  Keiji Matsusaka

IPC分类号： G02B13/04

CPC分类号： G02B13/04 ,  G02B13/18

摘要： An optical system having a wide angle of view for forming an optical image of a photographic subject on light-receiving surfaces of an imaging element that converts the optical image into an electrical signal comprises a first lens having a negative optical power and a group of lenses each having a positive optical power, which are serially disposed from an object side. The first lens comprises at least one aspherical surface, and has a concave surface centered around an optical axis in vicinity of the optical axis on an image-side surface thereof. Further, an optical entire length T (mm) of the entire system, half angle of view θ, and focal distance ftot (mm) of the entire system satisfy the following conditional expressions. 10 mm

摘要翻译： 一种具有广角视角的光学系统，用于在将光学图像转换成电信号的成像元件的受光面上形成摄影对象的光学图像，包括具有负光焦度的第一透镜和一组透镜 每个具有从物体侧连续布置的正光焦度。 第一透镜包括至少一个非球面，并且在其图像侧表面上具有围绕光轴附近的光轴居中的凹面。 此外，整个系统的整个系统的光学全长T（mm），半角视角θ和焦距f（t）至整个系统满足以下条件表达式。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 10 mm <？in-line-formula description =“In-line Formulas”end =“lead”？> 7 <20 <？in-line-formula description =“In 因此，可以获得实现广角视角的广角光学系统，减少光学整体长度并能够有利地校正像差。 可以以紧凑的尺寸提供包括广角光学系统的图像拾取装置，然而，仍然能够拍摄广泛的区域。 因此，图像拾取装置适合于诸如车载摄像机和安全摄像机之类的监视摄像机。

公开(公告)号：US20050231817A1

公开(公告)日：2005-10-20

申请号：US11079594

申请日：2005-03-14

申请人： Keiji Matsusaka ,  Soh Ohzawa

发明人： Keiji Matsusaka ,  Soh Ohzawa

IPC分类号： G02B15/16 ,  G02B15/14 ,  G02B15/177 ,  H04N5/225 ,  H04N101/00

CPC分类号： G02B15/177

摘要： In a zoom optical system for forming an optical image of an object onto a light receiving plane of an image sensor for converting the optical image into an electrical signal, and performing zooming by varying distances between a first lens group and a second lens group, and between the second lens group and a third lens group in an optical axis direction, the zoom optical system includes: the first lens group having a negative optical power; the second lens group having a positive optical power; and the third lens group having a positive optical power, wherein the first lens group is composed of two or more lens elements including at least one positive lens element and at least one negative lens element, the second lens group is composed of two or more lens elements including at least one positive lens element and at least one negative lens element, and all the lens elements in the first lens group are made of a plastic material.

摘要翻译： 在用于将物体的光学图像形成到用于将光学图像转换为电信号的图像传感器的光接收平面上并且通过改变第一透镜组和第二透镜组之间的距离进行变焦的变焦光学系统中，以及 在第二透镜组和第三透镜组之间沿光轴方向，变焦光学系统包括：具有负光焦度的第一透镜组; 具有正光焦度的第二透镜组; 和具有正光焦度的第三透镜组，其中第一透镜组由包括至少一个正透镜元件和至少一个负透镜元件的两个或更多个透镜元件组成，第二透镜组由两个或更多个透镜 包括至少一个正透镜元件和至少一个负透镜元件的元件，并且第一透镜组中的所有透镜元件由塑料材料制成。

公开(公告)号：US20090310225A1

公开(公告)日：2009-12-17

申请号：US11919045

申请日：2006-04-18

申请人： Keiji Matsusaka ,  Soh Ohzawa

发明人： Keiji Matsusaka ,  Soh Ohzawa

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： Provided is a microminiaturized zoom optical system capable of sufficiently correcting aberration. The zoom optical system (100) includes a first lens group (101) having a negative optical power, a second lens group (102) having a positive optical power, and a third lens group (103) having a positive or negative optical power in this order from the object side. The zoom optical system is configured in such a manner that the interval between the first lens group (101) and the second lens group (102) is decreased in zooming from the wide angle end to the telephoto end. A positive lens element in the third lens group (103) or in a lens group closer to the image side than the third lens group (103) satisfies the following conditional expression: vp

摘要翻译： 提供了能够充分校正像差的微型变焦光学系统。 变焦光学系统（100）包括具有负光焦度的第一透镜组（101），具有正光焦度的第二透镜组（102）和具有正光焦度的第三透镜组（103） 这个顺序从物体方面。 变焦光学系统被配置为使得第一透镜组（101）和第二透镜组（102）之间的间隔从广角端到远摄端的变焦减小。 第三透镜组（103）中的正透镜元件或比第三透镜组（103）更靠近像侧的透镜组满足以下条件表达式：vp其中vp是正的透镜组的阿贝数的最小值 透镜元件