公开(公告)号：US08218960B2

公开(公告)日：2012-07-10

申请号：US12416511

申请日：2009-04-01

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

IPC分类号： G03B17/00 ,  G03B3/00

CPC分类号： G03B13/36 ,  G02B7/282

摘要： A lens apparatus includes an imaging optical system including a focus lens unit, a branching optical unit disposed at the image side of the focus lens unit, a focus-state detecting unit including a focus detecting element having a focus detection area that receives light beams from the branching optical unit, and detecting a focus state by using the focus detecting element, an actuator that drives the focus lens unit in an optical axis direction thereof, a controller that controls the actuator, in accordance with an output from the focus-state detecting unit, and a movable image-side optical unit disposed at the image side of the branching optical unit. The controller changes the size of the focus detection area of the focus detecting element within a range in accordance with the position of the image-side optical unit.

摘要翻译： 一种透镜装置，包括：成像光学系统，包括聚焦透镜单元，设置在聚焦透镜单元的像侧的分支光学单元;焦点状态检测单元，包括焦点检测元件，该焦点检测元件具有接收来自 分支光学单元，并且通过使用焦点检测元件来检测聚焦状态，驱动聚焦透镜单元的光轴方向的控制器，根据聚焦状态检测的输出来控制致动器的控制器 以及设置在分支光学单元的像侧的可动图像侧光学单元。 控制器根据图像侧光学单元的位置将焦点检测元件的焦点检测区域的大小改变在范围内。

公开(公告)号：US20100085647A1

公开(公告)日：2010-04-08

申请号：US12574360

申请日：2009-10-06

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

IPC分类号： G02B15/14

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, a second lens unit having a negative refractive power and configured to move during zooming, a third lens unit having a positive refractive power and configured to move during zooming, and a fourth lens unit having a positive refractive power and configured not to move for zooming. In the zoom lens, the second lens unit includes at least one positive lens and at least one negative lens. Furthermore, in the zoom lens, average values of Abbe number (ν) and relative partial dispersion (θ) of materials of the at least one negative lens (νna, θna) and average values of Abbe number (ν) and relative partial dispersion (θ) of materials of the at least one positive lens (νpa, θpa) satisfy an appropriate condition.

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，具有负折光力并被配置为在变焦期间移动的第二透镜单元，具有正折射率的第三透镜单元 功率并且被配置为在变焦期间移动;以及第四透镜单元，其具有正折射能力并且被配置为不移动用于变焦。 在变焦透镜中，第二透镜单元包括至少一个正透镜和至少一个负透镜。 此外，在变焦透镜中，至少一个负透镜的材料的阿贝数（＆ngr;）和相对部分色散（＆amp;重量）的平均值和阿贝数（＆ngr）的平均值 ;和）所述至少一个正透镜（＆ngr; pa，＆amp; tt; pa）的材料的相对部分色散（＆amp; thetas）满足适当的条件。

公开(公告)号：US20090196591A1

公开(公告)日：2009-08-06

申请号：US12416517

申请日：2009-04-01

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

IPC分类号： G03B17/00 ,  G03B3/00 ,  H04N5/232 ,  G03B13/32

CPC分类号： G03B13/36 ,  G02B7/282

摘要： A lens apparatus includes an imaging optical system including a focus lens unit, a branching optical unit disposed at the image side of the focus lens unit, a focus-state detecting unit including a focus detecting element having a focus detection area that receives light beams from the branching optical unit, and detecting a focus state by using the focus detecting element, an actuator that drives the focus lens unit in an optical axis direction thereof, a controller that controls the actuator, in accordance with an output from the focus-state detecting unit, and a movable image-side optical unit disposed at the image side of the branching optical unit. The controller changes the size of the focus detection area of the focus detecting element within a range in accordance with the position of the image-side optical unit.

摘要翻译： 一种透镜装置，包括：成像光学系统，包括聚焦透镜单元，设置在聚焦透镜单元的像侧的分支光学单元;焦点状态检测单元，包括焦点检测元件，该焦点检测元件具有接收来自 分支光学单元，并且通过使用焦点检测元件来检测聚焦状态，驱动聚焦透镜单元的光轴方向的控制器，根据聚焦状态检测的输出来控制致动器的控制器 以及设置在分光光学单元的像侧的可动图像侧光学单元。 控制器根据图像侧光学单元的位置将焦点检测元件的焦点检测区域的大小改变在范围内。

公开(公告)号：US20090196590A1

公开(公告)日：2009-08-06

申请号：US12416511

申请日：2009-04-01

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

IPC分类号： G03B17/00 ,  H04N5/232 ,  G03B13/32

CPC分类号： G03B13/36 ,  G02B7/282

摘要： A lens apparatus includes an imaging optical system including a focus lens unit, a branching optical unit disposed at the image side of the focus lens unit, a focus-state detecting unit including a focus detecting element having a focus detection area that receives light beams from the branching optical unit, and detecting a focus state by using the focus detecting element, an actuator that drives the focus lens unit in an optical axis direction thereof, a controller that controls the actuator, in accordance with an output from the focus-state detecting unit, and a movable image-side optical unit disposed at the image side of the branching optical unit. The controller changes the size of the focus detection area of the focus detecting element within a range in accordance with the position of the image-side optical unit.

公开(公告)号：US6141157A

公开(公告)日：2000-10-31

申请号：US334824

申请日：1999-06-17

申请人： Ryuji Nurishi ,  Jun Hosoya

发明人： Ryuji Nurishi ,  Jun Hosoya

IPC分类号： G02B13/18 ,  G02B15/167 ,  G02B15/17 ,  G02B15/14

CPC分类号： G02B15/17

摘要： A zoom lens has, in succession from the object side, a first lens unit of positive refractive power fixed during focal length change, a second lens unit of negative refractive power for focal length change, a third lens unit of negative refractive power for correcting the fluctuation of the image plane resulting from focal length change, and a fixed fourth lens unit of positive refractive power, and a thin layer of resin satisfying a predetermined condition is provided on at least one lens surface of the first lens unit.

摘要翻译： 变焦透镜在物体侧依次具有在焦距变化期间固定的正折射力的第一透镜单元，用于焦距变化的负折射力的第二透镜单元，用于校正第二透镜单元的负折射力 在第一透镜单元的至少一个透镜表面上设置由焦距变化引起的图像平面的波动和正屈光力固定的第四透镜单元，以及满足预定条件的树脂薄层。

公开(公告)号：US08149518B2

公开(公告)日：2012-04-03

申请号：US12856988

申请日：2010-08-16

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

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 positive first lens unit which does not move for zooming; a negative second lens unit which moves for zooming; a positive third lens unit which moves for zooming; and a fourth lens unit which does not move for zooming, is provided for imaging, and has a positive refractive power, in which the third lens unit includes multiple lenses including a positive lens and a negative lens, and the third lens unit satisfies: −2.0×10−3

摘要翻译： 一种变焦透镜系统，从物体侧到图像侧依次包括：不能进行变焦的正的第一透镜单元; 用于变焦移动的负第二透镜单元; 用于变焦的正的第三透镜单元; 并且不具有用于变焦的第四透镜单元被提供用于成像，并且具有正折射力，其中第三透镜单元包括具有正透镜和负透镜的多个透镜，并且第三透镜单元满足： 2.0×10-3 <（＆Thetas; pa-＆thetas; na）/（＆ngr; pa-＆ngr; na）< - 1.4×10-3; 和41 <＆ngr; pa-＆ngr; na <53; 和2.9

公开(公告)号：US07362512B2

公开(公告)日：2008-04-22

申请号：US11690352

申请日：2007-03-23

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

IPC分类号： G02B15/14 ,  G03B13/36

CPC分类号： G02B7/36 ,  G02B7/282 ,  G02B26/02

摘要： A lens apparatus mounted to a camera including an image-pickup element, including: a focus lens means movable in an optical axis direction for focusing; a zoom lens unit; a zoom detector; an aperture-stop device; a stop-value detector; a splitting optical unit; a focus-condition detection unit; an actuator; a controller for controlling the actuator based on an output from the focus-condition detection unit; and a manual operation member, wherein the controller obtains an F-number of the lens apparatus based on outputs from the zoom detector and stop-value detector and when the F-number exceeds a predetermined value, the controller causes the actuator to stop the focus lens unit so that the focus lens unit is driven by the manual operation member.

摘要翻译： 一种安装在包括图像拾取元件的相机的透镜装置，包括：可沿光轴方向移动的聚焦透镜装置，用于聚焦; 变焦镜头单元; 变焦检测器; 孔径光阑装置; 停止值检测器; 分裂光学单元; 聚焦条件检测单元; 执行机构 控制器，用于根据来自焦点状态检测单元的输出来控制致动器; 以及手动操作部件，其中控制器基于来自变焦检测器和停止值检测器的输出获得透镜装置的F数，并且当F数超过预定值时，控制器使致动器停止聚焦 透镜单元，使得聚焦透镜单元由手动操作构件驱动。

公开(公告)号：US20070058963A1

公开(公告)日：2007-03-15

申请号：US11531021

申请日：2006-09-12

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

IPC分类号： G03B13/00

CPC分类号： G03B13/36 ,  G02B7/282

摘要： A lens apparatus includes an imaging optical system including a focus lens unit, a branching optical unit disposed at the image side of the focus lens unit, a focus-state detecting unit including a focus detecting element having a focus detection area that receives light beams from the branching optical unit, and detecting a focus state by using the focus detecting element, an actuator that drives the focus lens unit in an optical axis direction thereof, a controller that controls the actuator, in accordance with an output from the focus-state detecting unit, and a movable image-side optical unit disposed at the image side of the branching optical unit. The controller changes the size of the focus detection area of the focus detecting element within a range in accordance with the position of the image-side optical unit.

摘要翻译： 一种透镜装置，包括：成像光学系统，包括聚焦透镜单元，设置在聚焦透镜单元的像侧的分支光学单元;焦点状态检测单元，包括焦点检测元件，该焦点检测元件具有接收来自 分支光学单元，并且通过使用焦点检测元件来检测聚焦状态，驱动聚焦透镜单元的光轴方向的控制器，根据聚焦状态检测的输出来控制致动器的控制器 以及设置在分支光学单元的像侧的可动图像侧光学单元。 控制器根据图像侧光学单元的位置将焦点检测元件的焦点检测区域的大小改变在范围内。

公开(公告)号：US07113344B2

公开(公告)日：2006-09-26

申请号：US11050391

申请日：2005-02-03

申请人： Ryuji Nurishi ,  Takahiro Yoshimi

发明人： Ryuji Nurishi ,  Takahiro Yoshimi

IPC分类号： G02B13/08

CPC分类号： G02B13/08

摘要： An anamorphic converter, which can be inserted into and removed from a lens group of an image-formation optical system, includes an anamorphic lens that satisfies the following conditions 0.9 1 wherein βx represents a first focal distance magnification scale at a first cross-section containing an optical axis of the anamorphic lens, βy represents a second focal distance magnification scale at a second cross-section which is perpendicular to the first cross-section and contains the optical axis, AR1 represents an aspect ratio of an image-taking range in a field of the image-formation optical system, and AR2 represents an aspect ratio at an effective range of an image-taking unit disposed at an object image side of the lens group. As such, there is provided an anamorphic converter which is small and has high optical performance, suitable for digital cinematography.

摘要翻译： 可以插入到图像形成光学系统的透镜组中并从图像形成光学系统的透镜组移除的变形转换器包括满足以下条件的变形透镜：<？in-line-formula description =“In-line Formulas”end =“ 引线“>> 0.9 <（AR 1 .betax）/（AR 2 .betay）<1.1 <？in-line-formula description =”In-line Formulas“end =”tail“？> <？in-line-formula 描述=“在线公式”end =“lead”？>（AR 2 ^{2 +1）.betay /（AR 1 SUP > +1）> 1 <？in-line-formula description =“在线公式”end =“tail”？>其中，betax表示第一横截面处的第一焦距放大标度，该第一横截面包含变形的光轴 透镜，betay表示与第一横截面垂直的第二横截面并包含光轴的第二焦距放大倍数，AR 1表示图像取样区域中的摄像范围的纵横比， 形成光学系统，AR 2表示e的纵横比 设置在透镜组的物体像侧的摄像单元的有效范围。 因此，提供了一种小型且具有高光学性能的变形转换器，适用于数字摄影。}

公开(公告)号：US20050225876A1

公开(公告)日：2005-10-13

申请号：US11103379

申请日：2005-04-11

申请人： Ryuji Nurishi

发明人： Ryuji Nurishi

IPC分类号： G02B13/12 ,  G02B13/08 ,  G02B15/02 ,  G02B15/10 ,  G02B26/08 ,  G02B3/02 ,  G02B13/18

CPC分类号： G02B13/08 ,  G02B13/12 ,  G02B15/02

摘要： An anamorphic converter, which is disposed at an image side of an image-forming optical system, includes a first lens unit having one of positive and negative optical power, a second lens unit including an anamorphic lens, and a third lens unit having positive optical power, positioned in order from an object side to the image side. The second lens unit is removable from the position between the first lens unit and the third lens unit.

摘要翻译： 设置在图像形成光学系统的像侧的变形转换器包括具有正光焦度和负光焦度之一的第一透镜单元，包括变形透镜的第二透镜单元和具有正光学的第三透镜单元 功率，从物体侧到图像侧依次定位。 第二透镜单元可从第一透镜单元和第三透镜单元之间的位置移除。