公开(公告)号：US5775790A

公开(公告)日：1998-07-07

申请号：US684476

申请日：1996-07-19

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G03B15/03 ,  G03B15/05 ,  G03B15/02

CPC分类号： G03B15/03 ,  G03B15/05 ,  G03B2215/0503 ,  G03B2215/051

摘要： An illuminating optical system including a light emitting device for supplying illuminating light, a directing member for directing the light beam from the light emitting device by refracting action, and a moving device for moving at least one of the light emitting device and the directing member in a direction differing from the direction of the optical axis of the directing member and varying the spacing between the light emitting device and the directing member to thereby vary the illumination range at a predetermined distance.

摘要翻译： 一种照明光学系统，包括用于提供照明光的发光装置，用于通过折射作用引导来自发光装置的光束的引导构件，以及用于使发光装置和引导构件中的至少一个移动的移动装置 与导向构件的光轴的方向不同的方向，并且改变发光装置与引导构件之间的间隔，从而以预定距离改变照明范围。

公开(公告)号：US5748383A

公开(公告)日：1998-05-05

申请号：US721578

申请日：1996-09-25

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/173 ,  G02B15/14 ,  G02B3/02 ,  G02B9/60 ,  G02B9/34

CPC分类号： G02B15/173

摘要： In a variable focal length optical system which has, in succession from an object side, a first lens unit G1 having a positive refractive power, a second lens unit G2 having a negative refractive power, a third lens unit G3 having a positive refractive power, a fourth lens unit G4 having a positive refractive power, and a fifth lens unit G5 having a negative refractive power, when the focal length is varied from the maximum wide-angle state to the maximum telephoto state, at least the fifth lens unit G5 moves toward the object side, so that a first variable air gap between the first lens unit G1 and the second lens unit G2 increases, a second variable air gap between the second lens unit G2 and the third lens unit G3 decreases, a third variable air gap between the third lens unit G3 and the fourth lens unit G4 increases, and a fourth variable air gap between the fourth lens unit G4 and the fifth lens unit G5 decreases, the second lens unit G2 at least has a negative sub lens unit G21 which is disposed at a position closest to the object side and has a negative refractive power, and a sub lens unit G22 which is disposed in the neighborhood of the image side of the negative sub lens unit G21, and the optical system satisfies the following conditions: 0.3

摘要翻译： 在从物体侧连续地具有正屈光力的第一透镜单元G1，具有负屈光力的第二透镜单元G2，具有正折射光焦度的第三透镜单元G3的可变焦距光学系统中， 具有正折光力的第四透镜单元G4和具有负折光力的第五透镜单元G5，当焦距从最大广角状态变化到最大望远状态时，至少第五透镜单元G5移动 朝向物体侧，使得第一透镜单元G1和第二透镜单元G2之间的第一可变气隙增加，第二透镜单元G2和第三透镜单元G3之间的第二可变气隙减小，第三可变气隙 在第三透镜单元G3和第四透镜单元G4之间增加，第四透镜单元G4和第五透镜单元G5之间的第四可变气隙减小，第二透镜单元G2至少具有负子透镜单元G21w 设置在最靠近物体侧并且具有负折光力的位置，以及设置在负副透镜单元G21的像侧附近的副透镜单元G22，并且光学系统满足以下条件 ：0.3 <β2t。 β2w <1.0 0.08

公开(公告)号：US5737129A

公开(公告)日：1998-04-07

申请号：US577119

申请日：1995-12-22

申请人： Motoyuki Ohtake ,  Akihiko Obama

发明人： Motoyuki Ohtake ,  Akihiko Obama

IPC分类号： G02B15/177 ,  G02B15/14

CPC分类号： G02B15/177

摘要： The zoom lens of present invention includes, in order from the object side, a first lens group of negative refractive power and a second lens group of positive refractive power, such that each lens group moves during zooming from the maximum wide-angle state to the maximum telephoto state so that the distance between the first lens group and the second lens group decreases. The second lens group has, in order from the object side, a first lens subgroup of positive refractive power, having first and second lens units of positive refractive power, and a second lens subgroup of negative refractive power. The zoom lens satisfies at least one of the following conditions: 0.2

摘要翻译： 本发明的变焦镜头从物体侧依次包括负折射力的第一透镜组和正折光力的第二透镜组，使得每个透镜组在从最大广角状态变焦到第二透镜组的过程中移动 最大远摄状态，使得第一透镜组和第二透镜组之间的距离减小。 第二透镜组从物体侧起依次具有正折射力的第一透镜子组，具有正折光力的第一透镜单元和第二透镜单元以及负折射光焦度的第二透镜子组。 变焦透镜满足以下条件中的至少一个：0.2

公开(公告)号：US5687403A

公开(公告)日：1997-11-11

申请号：US598265

申请日：1996-02-07

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G03B13/36 ,  G02B7/10 ,  G03B1/18

CPC分类号： G02B7/102

摘要： A focal point position correction apparatus for a camera with a zoom lens system, has an adjustment amount calculation device for calculating an adjustment amount .delta.h of at least one lens unit Gh in the zoom lens system using a formula based on focal length information that defines a change amount corresponding to the focal length of the entire lens system and correction coefficients pre-stored for back focus adjustment, and a lens unit driver for moving the lens unit Gh by the adjustment amount .delta.h along the optical axis in the respective focal length states so as to correct any deviation, of the focal point position with respect to the film surface of a best image surface, caused by manufacturing errors, over the entire zooming range.

摘要翻译： 具有变焦透镜系统的相机的焦点位置校正装置具有调整量计算装置，用于使用基于定义的焦距信息的公式计算变焦透镜系统中的至少一个透镜单元Gh的调节量Δh 对应于整个透镜系统的焦距的改变量和用于后焦点调节的预先存储的校正系数;以及透镜单元驱动器，用于将透镜单元Gh移动沿着各个焦距的光轴的调节量Δh 状态，以便在整个变焦范围内校正由制造误差引起的相对于最佳图像表面的胶片表面的焦点位置的任何偏差。

公开(公告)号：US5678071A

公开(公告)日：1997-10-14

申请号：US699859

申请日：1996-08-20

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/20 ,  G02B15/173 ,  G02B27/64 ,  G03B5/00 ,  G03B7/08

CPC分类号： G02B27/646 ,  G02B15/173 ,  G03B5/00 ,  G03B2205/0015

摘要： In a variable focal length optical system wherein a shift lens unit constituting a portion of the optical system can be moved in a direction substantially perpendicular to the optical axis of the optical system to thereby shift an image, the shift lens unit is driven on the basis of the focal length information of the optical system to correct any variation in image position due to the vibration of the optical system. When, for example, a focusing lens unit movable along the optical axis during focusing on a short distance object is disposed more adjacent to the object side than the shift lens unit, the required amount of drive of the shift lens unit is calculated on the basis of the focal length information and a memorized predetermined coefficient.

摘要翻译： 在可变焦距光学系统中，构成光学系统的一部分的移动透镜单元可以在基本上垂直于光学系统的光轴的方向上移动，从而移动图像，基于该基准 的光学系统的焦距信息，以校正由于光学系统的振动引起的图像位置的任何变化。 例如，当聚焦在短距离物体上时可以沿着光轴移动的聚焦透镜单元被布置成比偏移透镜单元更靠近物体侧时，基于该基准计算所需的移动透镜单元的驱动量 的焦距信息和存储的预定系数。

公开(公告)号：US5668669A

公开(公告)日：1997-09-16

申请号：US636946

申请日：1996-04-24

申请人： Motoyuki Ohtake ,  Motohisa Mori

发明人： Motoyuki Ohtake ,  Motohisa Mori

IPC分类号： G02B9/60 ,  G02B13/00 ,  G02B13/06 ,  G02B15/14 ,  G02B9/00

CPC分类号： G02B9/60 ,  G02B13/00 ,  G02B13/06

摘要： A wide-angle objective lens is comprised, from the object side, of a first lens component which is a negative meniscus lens having its convex surface facing the object side, a second lens component which is a meniscus lens having its convex surface facing the object side and having positive refractive power, a third lens component which is a cemented meniscus lens comprising a positive lens and a negative lens cemented together and having its convex surface facing the object side and having positive refractive power, a fourth lens component which is a positive meniscus lens having its concave surface facing the object side, and a fifth lens component which is a negative meniscus lens having its concave surface facing the object side. The wide-angle objective lens has a stop disposed between the second lens component and third lens component, and satisfies predetermined conditions.

摘要翻译： 从物体侧开始，将广角物镜作为具有朝向物体侧的凸面的负弯月形透镜的第一透镜部件，具有朝向物体的凸面的弯月形透镜的第二透镜部件 并且具有正的屈光力;第三透镜部件，其是包括正透镜和负透镜的胶合弯月形透镜，胶结在一起并且具有面向物体侧并具有正折射力的凸面，第四透镜部件是正的 其凹面朝向物体侧的弯月形透镜以及具有面向物体侧的凹面的负凹凸透镜的第五透镜部件。 广角物镜具有设置在第二透镜部件和第三透镜部件之间的止挡件，并且满足预定条件。

公开(公告)号：US5479295A

公开(公告)日：1995-12-26

申请号：US299409

申请日：1994-09-01

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B13/18 ,  G02B15/16 ,  G02B15/14

CPC分类号： G02B15/161

摘要： A variable focal length optical system comprises, in the following order from the object side, a first lens group having positive refractive power, the first lens group including, in succession from the object side, a first lens component having positive refractive power, a second lens component comprising a cemented lens consisting of a negative lens component and a positive lens component, and a third lens component having positive refractive power, and a second lens group having negative refractive power, the second lens group including, in succession from the object side, a fourth lens component having positive refractive power, and a fifth lens component having negative refractive power. The variable focal length optical system satisfies the following condition:-0.19

摘要翻译： 可变焦距光学系统从物体侧依次包括具有正折光力的第一透镜组，第一透镜组从物体侧依次包括具有正屈光力的第一透镜组件，第二透镜组 透镜部件，包括由负透镜部件和正透镜部件构成的胶合透镜，以及具有正屈光力的第三透镜部件和具有负屈光力的第二透镜组，所述第二透镜组从物侧连续地包括 具有正折光力的第四透镜部件和具有负屈光力的第五透镜部件。 可变焦距光学系统满足以下条件：-0.19 <（r23-r32）/（r23 + r32）<-0.01，其中r23是与第二透镜组件最相邻的第二透镜部件的表面的曲率半径 图像侧，并且r32是与图像侧最相邻的第三透镜部件的表面的曲率半径。

公开(公告)号：US5406416A

公开(公告)日：1995-04-11

申请号：US151023

申请日：1993-11-12

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B13/18 ,  G02B15/177 ,  G02B15/20 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A wideangle-range-covering zoom lens comprises a first lens group having a negative refracting power, a second lens group having a positive refracting power, which is arranged coaxially with the first lens group and adjacent to the first lens group on a side thereof opposite to a subject, a third lens group having a positive refracting power, which is arranged coaxially with the second lens group and adjacent to the second lens group on a side thereof opposite to the subject, and a fourth lens group having a negative refracting power, which is arranged coaxially with the third lens group and adjacent to the third lens group on a side thereof opposite to the subject, in which the lens groups are relatively moved in zooming from a wideangle end to a telephoto end such that a gap decreases between the first lens group and the second lens group, a gap increases between the second lens group and the third lens group, and a gap decreases between the third lens group and the fourth lens group, and in which predetermined conditions are satisfied.

摘要翻译： 宽范围覆盖变焦镜头包括具有负折射力的第一透镜组，具有正折射率的第二透镜组，其与第一透镜组同轴设置并且与第一透镜组相邻，在其相对侧 具有正折射率的第三透镜组，其与第二透镜组同轴布置并且与其相对的第二透镜组相邻的第三透镜组以及具有负折射力的第四透镜组， 其与第三透镜组同轴布置并且在与被摄体相对的一侧上与第三透镜组相邻，其中透镜组从广角端到望远端相对地相对移动，使得间隙在第 第一透镜组和第二透镜组，第二透镜组和第三透镜组之间的间隙增加，并且第三透镜组和第四透镜组之间的间隙减小 ，并且其中满足预定条件。