公开(公告)号：US08218243B2

公开(公告)日：2012-07-10

申请号：US12939664

申请日：2010-11-04

申请人： Hiroshi Saruwatari

发明人： Hiroshi Saruwatari

IPC分类号： G02B15/14

CPC分类号： G02B15/177 ,  G02B13/22

摘要： Provided is a zoom lens including, in order from an object side to an image side: a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; and a third lens unit having a positive refractive power, all the lens units moving during zooming; and a secondary aperture having a constant aperture diameter disposed on the image side of the second lens unit, in which the second lens unit includes lens components having a positive refractive powers disposed at a position closest to the object side and a position closest to the image side, and a distance (dd) on an optical axis between a lens surface closest to the image side in the second lens unit and the secondary aperture, and a focal length (fw) of the entire zoom lens at a wide angle end are appropriately set.

摘要翻译： 本发明提供一种变焦透镜，包括从物体侧到像侧的顺序：具有负屈光力的第一透镜单元; 具有正屈光力的第二透镜单元; 和具有正折光力的第三透镜单元，所有透镜单元在变焦期间移动; 以及设置在第二透镜单元的像侧上的具有恒定孔径直径的次级孔径，其中第二透镜单元包括具有正折射力的透镜部件，其设置在最靠近物体侧的位置和最靠近图像的位置 在第二透镜单元中最靠近像侧的透镜表面与次级光圈之间的光轴上的距离（dd）和广角端的整个变焦镜头的焦距（fw）适当地 组。

公开(公告)号：US20110273774A1

公开(公告)日：2011-11-10

申请号：US13142636

申请日：2010-01-06

申请人： Hiroshi Saruwatari

发明人： Hiroshi Saruwatari

IPC分类号： G02B27/64 ,  G02B15/20

CPC分类号： G02B15/173 ,  G02B9/34 ,  G02B13/12 ,  G02B15/14 ,  G02B27/646

摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a fourth lens unit having a positive refractive power. In the zoom lens, each lens unit moves to perform zooming. In addition, an amount of movement Mm of the fourth lens unit when zooming from a wide angle end to an intermediate zooming position, an amount of movement Mt of the fourth lens unit when zooming from the wide angle end to a telephoto end, a focal length fw of an entire system at the wide angle end, and focal lengths f3 and f4 of the respective third lens unit and fourth lens unit are properly set.

摘要翻译： 变焦透镜从物体侧到像侧依次包括具有正折光力的第一透镜单元，具有负折光力的第二透镜单元，具有正折光力的第三透镜单元和第四透镜 具有正屈光力的单元。 在变焦镜头中，每个镜头单元移动以执行变焦。 此外，当从广角端变焦到中间变焦位置时第四透镜单元的移动量Mm，当从广角端变焦到望远端时第四透镜单元的移动量Mt，焦点 在广角端的整个系统的长度fw和各个第三透镜单元和第四透镜单元的焦距f3和f4被适当地设定。

公开(公告)号：US07864444B2

公开(公告)日：2011-01-04

申请号：US12420552

申请日：2009-04-08

申请人： Hiroshi Saruwatari

发明人： Hiroshi Saruwatari

IPC分类号： G02B9/34

CPC分类号： G02B15/173 ,  G02B27/646

摘要： Provided is a zoom lens having a high magnification and excellent optical performance over an entire zoom range between a wide-angle end and a telephoto end. The zoom lens includes, in order from object side to image side: a first lens unit having positive refractive power; a second lens unit having negative refractive power; a third lens unit having positive refractive power; and a fourth lens unit having positive refractive power, and performs zooming while the respective lens units move, in which: during zooming from wide-angle end to telephoto end, the first unit moves closer to object side at telephoto end than at wide-angle end and the fourth unit moves along a locus convex to object side; and a focal length of the second unit, a focal length of the zoom lens at wide-angle end, and an imaging magnification of the fourth unit at telephoto end are appropriately set.

摘要翻译： 本发明提供一种在广角端和望远端之间的整个变焦范围内具有高放大率和优异的光学性能的变焦透镜。 变焦透镜从物体侧到像侧依次包括具有正屈光力的第一透镜单元; 具有负屈光力的第二透镜单元; 具有正屈光力的第三透镜单元; 以及具有正屈光力的第四透镜单元，并且在各个透镜单元移动的同时进行变焦，其中：在从广角端到远摄端的变焦期间，第一单元在远摄端处比在广角端更靠近物体侧 端部和第四单元沿着凸起到物体侧的轨迹移动; 并且适当地设定第二单元的焦距，广角端的变焦透镜的焦距和第四单元在望远端的成像倍率。

公开(公告)号：US20100296665A1

公开(公告)日：2010-11-25

申请号：US12782615

申请日：2010-05-18

申请人： Yohei ISHIKAWA ,  Yu Takahashi ,  Hiroshi Saruwatari ,  Kazunobu Kondo

发明人： Yohei ISHIKAWA ,  Yu Takahashi ,  Hiroshi Saruwatari ,  Kazunobu Kondo

IPC分类号： H04B15/00

CPC分类号： G10L21/0208 ,  G10L2021/02085 ,  G10L2021/02166

摘要： A In a noise suppression apparatus, an extractor extracts a noise component from an audio signal. A stationary noise estimator estimates stationary noise included in the noise component. A first noise suppressor removes a spectrum of the stationary noise from a spectrum of the audio signal to an extent determined by a subtraction factor. A non-stationary noise estimator estimates a spectrum of non-stationary noise by subtracting the spectrum of the stationary noise from the spectrum of the noise component. A factor setter generates a filtering factor for emphasizing a target sound component contained in the audio signal from the spectrum of the non-stationary noise. A second noise suppressor performs a filtering process using the filtering factor on the audio signal after processing of the first noise suppressor. An index calculator calculates a kurtosis change index representing an extent of change of kurtosis in a frequence distribution of magnitude of the audio signal between the kurtosis observed when processing of the first noise suppression part is performed and the kurtosis observed when processing of the second noise suppression part is performed. A factor adjuster variably controls the subtraction factor according to the kurtosis change index.

摘要翻译： A在噪声抑制装置中，提取器从音频信号中提取噪声分量。 静态噪声估计器估计噪声分量中包含的静态噪声。 第一噪声抑制器从音频信号的频谱去除固定噪声的频谱到由减法因子确定的程度。 非平稳噪声估计器通过从噪声分量的频谱中减去固定噪声的频谱来估计非平稳噪声的频谱。 因子设定器产生用于从非平稳噪声的频谱强调包含在音频信号中的目标声音分量的滤波因子。 第二噪声抑制器在处理第一噪声抑制器之后，使用对音频信号的滤波因子进行滤波处理。 索引计算器计算表示在执行第一噪声抑制部分的处理时观察到的峰度与在第二噪声抑制处理时观察到的峰度之间的音频信号的频度分布中的峰度变化程度的峰度变化指数 部分执行。 因子调整器根据峰度变化指数可变地控制减法因子。

公开(公告)号：US07545580B2

公开(公告)日：2009-06-09

申请号：US12022804

申请日：2008-01-30

申请人： Hiroshi Saruwatari

发明人： Hiroshi Saruwatari

IPC分类号： G02B15/14 ,  G02B27/64

CPC分类号： G02B15/177

摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power, and a fourth lens unit having positive refractive power. The zoom lens performs zooming by moving each of the lens units. The first lens unit and the third lens unit are positioned closer to the object at a telephoto end than at a wide-angle end. The zoom lens satisfies the following conditions: 0.3

摘要翻译： 变焦透镜从物体侧到像侧依次包括具有正屈光力的第一透镜单元，具有负屈光力的第二透镜单元，具有正屈光力的第三透镜单元和具有正折射力的第四透镜单元 屈光力。 变焦镜头通过移动每个镜头单元进行变焦。 第一透镜单元和第三透镜单元在远摄端处比在广角端更靠近物体定位。 变焦镜头满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> 0.3 <| m1 / m2 | <1.5 <？in-line-formula description =“In 线公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> 0.3 <| m3 / m2 | <0.8 < =“内联公式”end =“tail”？>其中m1，m2和m3分别是沿着光轴的第一透镜单元，第二透镜单元和第三透镜单元的移动量 从广角端到远摄端。

公开(公告)号：US20090116120A1

公开(公告)日：2009-05-07

申请号：US12264911

申请日：2008-11-05

申请人： Hiroshi Saruwatari

发明人： Hiroshi Saruwatari

IPC分类号： G02B15/16

CPC分类号： G02B15/173

摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power and configured to move along an optical axis during zooming, a second lens unit having a negative refractive power and configured to move with a locus convex towards the image side during zooming, a third lens unit having a positive refractive power, and a fourth lens unit having a negative refractive power. The first lens unit is located closer to the object side at a telephoto end than at a wide-angle end and the second lens unit is located closer to the image side at the telephoto end than at the wide-angle end. A focal length of the second lens unit (f2), a focal length of the zoom lens at the wide-angle end (fw), and a focal length of the zoom lens at the telephoto end (ft) are appropriately set.

摘要翻译： 变焦透镜从物体侧到像侧依次包括具有正折光力并被配置为在变焦期间沿着光轴移动的第一透镜单元，具有负屈光力并配置成随着 在变焦期间向图像侧凸出的轨迹，具有正折光力的第三透镜单元和具有负屈光力的第四透镜单元。 第一透镜单元在远摄端处比在广角端处更靠近物体侧，并且第二透镜单元位于远摄端处比在广角端处更靠近像侧。 适当地设定第二透镜单元（f2）的焦距，广角端的变焦透镜的焦距（fw）和变焦镜头在望远端的焦距（ft）。

公开(公告)号：US20080291547A1

公开(公告)日：2008-11-27

申请号：US12125640

申请日：2008-05-22

申请人： Hiroshi Saruwatari

发明人： Hiroshi Saruwatari

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens system includes, in order from an object side to an image side, a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, and a fourth lens unit having positive optical power. Each lens unit moves during zooming. In particular, the first lens unit moves so as to be closer to an object at a telephoto end than at a wide-angle end during zooming, and the fourth lens unit moves in a locus convex toward the object side during zooming. The sharing of magnification variation between the third lens unit and the fourth lens unit is appropriately set.

摘要翻译： 变焦透镜系统从物体侧到像侧依次包括具有正光焦度的第一透镜单元，具有负光焦度的第二透镜单元，具有正光焦度的第三透镜单元，以及具有正光学功率的第四透镜单元， 正光功率。 每个镜头单元在变焦期间移动。 特别地，第一透镜单元在变焦期间移动以便在远摄端处比在广角端更靠近物体，并且第四透镜单元在变焦期间朝向物体侧凸出的轨迹移动。 适当地设定第三透镜单元与第四透镜单元之间的倍率变化的共享。

公开(公告)号：US07443606B2

公开(公告)日：2008-10-28

申请号：US11539652

申请日：2006-10-09

申请人： Hiroshi Saruwatari ,  Hiroyuki Hamano

发明人： Hiroshi Saruwatari ,  Hiroyuki Hamano

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： At least one exemplary embodiment is directed to a zoom lens system, which includes, in order from an object side to an image side, a first lens unit of positive optical power, a second lens unit of negative optical power, a third lens unit of positive optical power, and a fourth lens unit of positive optical power. During zooming, each of the lens units moves.

摘要翻译： 至少一个示例性实施例涉及一种变焦透镜系统，其包括从物体侧到图像侧的顺序为正光焦度的第一透镜单元，负光焦度的第二透镜单元，第三透镜​​单元 正光焦度和正光焦度的第四透镜单元。 在变焦期间，每个镜头单元移动。

公开(公告)号：US20070091460A1

公开(公告)日：2007-04-26

申请号：US11539652

申请日：2006-10-09

申请人： Hiroshi Saruwatari ,  Hiroyuki Hamano

发明人： Hiroshi Saruwatari ,  Hiroyuki Hamano

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： At least one exemplary embodiment is directed to a zoom lens system, which includes, in order from an object side to an image side, a first lens unit of positive optical power, a second lens unit of negative optical power, a third lens unit of positive optical power, and a fourth lens unit of positive optical power. During zooming, each of the lens units moves.

摘要翻译： 至少一个示例性实施例涉及一种变焦透镜系统，其包括从物体侧到图像侧的顺序为正光焦度的第一透镜单元，负光焦度的第二透镜单元，第三透镜​​单元 正光焦度和正光焦度的第四透镜单元。 在变焦期间，每个镜头单元移动。

公开(公告)号：US06577450B2

公开(公告)日：2003-06-10

申请号：US09961302

申请日：2001-09-25

申请人： Hiroyuki Hamano ,  Hiroshi Saruwatari

发明人： Hiroyuki Hamano ,  Hiroshi Saruwatari

IPC分类号： G02B1514

CPC分类号： G02B27/4211 ,  G02B15/173 ,  G02B27/0037 ,  G02B27/4288

摘要： A zoom lens which has good optical performance with the number of lenses reduced as a result of forming a diffraction optical surface is disclosed. The zoom lens includes, in order from object side to image side, a first lens unit consisting of a positive lens element and having a positive optical power, a second lens unit having a negative optical power, a third lens unit having a positive optical power, and a fourth lens unit having a positive optical power. When zooming is performed from a wide angle end to a telephoto end, the first lens unit and the third lens unit are moved so that, at the telephoto end, they are closer to the object side, and the second lens unit is moved so that, at the telephoto end, it is closer to the image side. The zoom lens further includes at least one diffraction optical surface.

摘要翻译： 公开了一种由于形成衍射光学表面而减少的透镜数量具有良好的光学性能的变焦透镜。 变焦透镜从物体侧到像侧依次包括由正透镜元件构成并具有正光焦度的第一透镜单元，具有负光焦度的第二透镜单元，具有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。 当从广角端到远摄端进行变焦时，第一透镜单元和第三透镜单元被移动，使得在望远端，它们更靠近物体侧，并且第二透镜单元被移动，使得 在远摄端，它更靠近图像侧。 变焦透镜还包括至少一个衍射光学表面。