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    • 3. 发明授权
    • Optical system
    • 光学系统
    • US08355071B2
    • 2013-01-15
    • US12903982
    • 2010-10-13
    • Tomoaki Yamanaka
    • Tomoaki Yamanaka
    • H04N5/232G02B7/09
    • G02B7/102H04N5/232H04N5/23241H04N5/23296
    • An optical system of the present invention includes a storage unit which stores an operated position of an operation unit and a position of an optical member. When the power supply to the optical system terminates and then restarts, a control unit compares the stored operated position and the operated position detected by a first sensing unit upon restart. If they are different, the control unit controls a driving unit such that the position of the optical member detected by a second sensing unit can be a target position. If they are the same, the control unit controls the driving unit such that the position of the optical member detected by the second sensing unit can be the stored position of the optical member.
    • 本发明的光学系统包括存储单元,存储操作单元的操作位置和光学构件的位置。 当光学系统的电源终止并且然后重新开始时,控制单元在重新启动时比较存储的操作位置和由第一感测单元检测到的操作位置。 如果它们不同,则控制单元控制驱动单元,使得由第二感测单元检测到的光学构件的位置可以是目标位置。 如果它们相同,则控制单元控制驱动单元,使得由第二感测单元检测的光学构件的位置可以是光学构件的存储位置。
    • 4. 发明申请
    • IMAGE-PICKUP APPARATUS AND METHOD FOR ADJUSTING TRACKING CURVES
    • 图像拾取装置和调整跟踪曲线的方法
    • US20120120303A1
    • 2012-05-17
    • US13295629
    • 2011-11-14
    • Tomoaki Yamanaka
    • Tomoaki Yamanaka
    • H04N5/232
    • H04N5/23212G02B7/102G03B3/10G03B2205/0046H04N5/2253H04N5/23296
    • The method includes a first adjusting step of adjusting a first tracking curve which has been set so as to keep an in-focus state between a position of a magnification-varying lens and a position of an image sensor, and a second adjusting step of adjusting a second tracking curve which has been set so as to keep the in-focus state between the position of the magnification-varying lens and a position of the focus lens for an object distance. The magnification-varying lens is moved in an optical axis direction during a variation of magnification. The image sensor generates an image signal by photoelectrically converting an optical image formed by an image-pickup optical system. The image-pickup optical system including the magnification-varying lens and a focus lens moved in the optical axis direction during focusing.
    • 该方法包括:第一调整步骤,调整第一跟踪曲线,该第一跟踪曲线被设置为保持放大率变化透镜的位置与图像传感器的位置之间的对焦状态;以及第二调整步骤, 第二跟踪曲线被设置为保持放大率变化透镜的位置与对焦距离的聚焦透镜的位置之间的对焦状态。 放大率变化的透镜在放大率的变化期间沿光轴方向移动。 图像传感器通过光电转换由图像拾取光学系统形成的光学图像来生成图像信号。 在聚焦过程中包括放大率变化透镜和​​聚焦透镜在光轴方向移动的图像拾取光学系统。
    • 6. 发明授权
    • Blur correcting image pickup apparatus and control method
    • 模糊校正图像拾取装置和控制方法
    • US08279290B2
    • 2012-10-02
    • US12616523
    • 2009-11-11
    • Tomoaki Yamanaka
    • Tomoaki Yamanaka
    • H04N5/228
    • H04N5/23248G02B27/646H04N5/144
    • In an image pickup apparatus in which image stabilization is performed based on shake sensor and movement-vector-obtaining method which can perform accurate blur correction since shake components difficult to be detected by shake sensor can be detected by the movement-vector-obtaining method, the image blur due to high frequency vibration such as vehicle vibration cannot be corrected by the movement vector in low-frame-rate shooting since the detectable frequency band narrows in high frequency. Therefore, it is necessary to optimize the combination of blur information from the angular velocity sensor and from the movement vector, according to the frequency band detectable by the movement vector depending on change in frame rate. The combination ratio of blur correction based on blur information from angular velocity sensor, acceleration sensor and blur correction based on movement vector is determined depending on frequency detectable by the movement vector which inevitably changes depending on frame rate.
    • 在基于抖动传感器和运动矢量获取方法执行图像稳定化的图像拾取装置中,由于可以通过运动矢量获取方法检测到难以被抖动传感器检测到的抖动组分,因此能够进行精确的模糊校正, 由于可检测的频带在高频率下变窄,所以由于诸如车辆振动的高频振动引起的图像模糊不能被低帧率拍摄中的运动矢量校正。 因此,根据帧速度的变化,根据运动矢量可检测的频带,有必要优化来自角速度传感器的模糊信息与运动矢量的组合。 基于来自角速度传感器的模糊信息,加速度传感器和基于运动矢量的模糊校正的模糊校正的组合比例根据由帧速度不可避免地变化的运动矢量可检测的频率来确定。
    • 7. 发明申请
    • IMAGE PICKUP APPARATUS AND CONTROL METHOD THEREOF
    • 图像拾取装置及其控制方法
    • US20100123787A1
    • 2010-05-20
    • US12616523
    • 2009-11-11
    • Tomoaki Yamanaka
    • Tomoaki Yamanaka
    • H04N5/228
    • H04N5/23248G02B27/646H04N5/144
    • In an image pickup apparatus in which image stabilization is performed based on shake sensor and movement-vector-obtaining method which can perform accurate blur correction since shake components difficult to be detected by shake sensor can be detected by the movement-vector-obtaining method, the image blur due to high frequency vibration such as vehicle vibration cannot be corrected by the movement vector in low-frame-rate shooting since the detectable frequency band narrows in high frequency. Therefore, it is necessary to optimize the combination of blur information from the angular velocity sensor and from the movement vector, according to the frequency band detectable by the movement vector depending on change in frame rate. The combination ratio of blur correction based on blur information from angular velocity sensor, acceleration sensor and blur correction based on movement vector is determined depending on frequency detectable by the movement vector which inevitably changes depending on frame rate.
    • 在基于抖动传感器和运动矢量获取方法执行图像稳定化的图像拾取装置中,由于可以通过运动矢量获取方法检测到难以被抖动传感器检测到的抖动组分,因此能够进行精确的模糊校正, 由于可检测的频带在高频率下变窄,所以由于诸如车辆振动的高频振动引起的图像模糊不能被低帧率拍摄中的运动矢量校正。 因此,根据帧速度的变化,根据运动矢量可检测的频带,有必要优化来自角速度传感器的模糊信息与运动矢量的组合。 基于来自角速度传感器的模糊信息,加速度传感器和基于运动矢量的模糊校正的模糊校正的组合比例根据由帧速度不可避免地变化的运动矢量可检测的频率来确定。
    • 8. 发明授权
    • Tracking controllable image pickup apparatus
    • 跟踪可控摄像设备
    • US08908085B2
    • 2014-12-09
    • US13180951
    • 2011-07-12
    • Tomoaki Yamanaka
    • Tomoaki Yamanaka
    • H04N5/232
    • H04N5/23212H04N5/23296
    • The image pickup apparatus includes a memory storing first tracking data indicating a positional relationship of a magnification-varying lens and a correction lens and second tracking data indicating a positional relationship of the magnification-varying lens and an image sensor. A controller moves the correction lens and the image sensor using the first and second tracking data. An in-focus position detector detects an in-focus position using an output from the image sensor. A tracking adjuster obtains an adjustment value for adjusting the first tracking data, by using a difference between the detected in-focus position in a state where the magnification-varying lens is located at a first zoom position and the image sensor is located at a position in the second tracking data corresponding to the first zoom position and a position of the correction lens in the first tracking data corresponding to the first zoom position.
    • 图像拾取装置包括存储指示变倍透镜和校正透镜的位置关系的第一跟踪数据和指示变倍透镜和图像传感器的位置关系的第二跟踪数据的存储器。 控制器使用第一和第二跟踪数据移动校正透镜和图像传感器。 对焦位置检测器使用来自图像传感器的输出来检测对焦位置。 跟踪调节器通过使用在变倍透镜位于第一变焦位置的状态下的检测到的对焦位置与图像传感器位于位置之间的差异来获得用于调整第一跟踪数据的调整值 在对应于第一变焦位置的第二跟踪数据和校正透镜在对应于第一变焦位置的第一跟踪数据中的位置。
    • 9. 发明授权
    • Image-pickup apparatus and method for adjusting tracking curves
    • 用于调整跟踪曲线的图像拾取装置和方法
    • US08605204B2
    • 2013-12-10
    • US13295629
    • 2011-11-14
    • Tomoaki Yamanaka
    • Tomoaki Yamanaka
    • H04N5/232G03B17/00
    • H04N5/23212G02B7/102G03B3/10G03B2205/0046H04N5/2253H04N5/23296
    • The method includes a first adjusting step of adjusting a first tracking curve which has been set so as to keep an in-focus state between a position of a magnification-varying lens and a position of an image sensor, and a second adjusting step of adjusting a second tracking curve which has been set so as to keep the in-focus state between the position of the magnification-varying lens and a position of the focus lens for an object distance. The magnification-varying lens is moved in an optical axis direction during a variation of magnification. The image sensor generates an image signal by photoelectrically converting an optical image formed by an image-pickup optical system. The image-pickup optical system including the magnification-varying lens and a focus lens moved in the optical axis direction during focusing.
    • 该方法包括:第一调整步骤,调整第一跟踪曲线,该第一跟踪曲线被设置为保持放大率变化透镜的位置与图像传感器的位置之间的对焦状态;以及第二调整步骤, 第二跟踪曲线被设置为保持放大率变化透镜的位置与对焦距离的聚焦透镜的位置之间的对焦状态。 放大率变化的透镜在放大率的变化期间沿光轴方向移动。 图像传感器通过光电转换由图像拾取光学系统形成的光学图像来生成图像信号。 在聚焦过程中包括放大率变化透镜和​​聚焦透镜在光轴方向移动的图像拾取光学系统。
    • 10. 发明授权
    • Position control apparatus and optical apparatus
    • 位置控制装置和光学装置
    • US08072851B2
    • 2011-12-06
    • US11449518
    • 2006-06-08
    • Tomoaki Yamanaka
    • Tomoaki Yamanaka
    • G11B7/00G02B7/28
    • G02B7/102G02B7/08H04N5/23212
    • A position control apparatus (optical apparatus) is disclosed which is capable of preventing disadvantages caused by the absence of a dead band while achieving a required accuracy of positional control. The position control apparatus comprises a controller which controls the drive of an object (optical member) so that the position of the object, which detected by a position detector, moves closer to a target position. The controller has a control function which does not drive the object in a case where the difference between the position detected by the position detector and the target position is within a predetermined range, and changes the predetermined range according to control modes relating to the drive of the object.
    • 公开了一种位置控制装置(光学装置),其能够在实现所需的位置控制精度的同时,防止由于无死区而引起的缺点。 位置控制装置包括控制物体(光学构件)的驱动的控制器,使得由位置检测器检测到的物体的位置更接近目标位置。 控制器具有在由位置检测器检测到的位置与目标位置之间的差处于预定范围内的情况下不驱动物体的控制功能,并且根据与驱动方向有关的控制模式来改变预定范围 物体。