IMAGE-PICKUP APPARATUS AND FOCUS CONTROL METHOD
    81.
    发明申请
    IMAGE-PICKUP APPARATUS AND FOCUS CONTROL METHOD 有权
    图像拾取装置和聚焦控制方法

    公开(公告)号:US20080024648A1

    公开(公告)日:2008-01-31

    申请号:US11782063

    申请日:2007-07-24

    申请人: Hitoshi Yasuda

    发明人: Hitoshi Yasuda

    IPC分类号: H04N5/232

    CPC分类号: H04N5/23212

    摘要: An image-pickup apparatus includes a first detector configured to generate first information corresponding to a contrast state of a picked-up image, a second detector configured to detect second information that is used for focus control and different from the first information, a controller configured to provide the focus control, and a first operating member operable by a user, wherein the controller provides the focus control that uses the first information but does not use the second information when the first operating member is not operated, and provides the focus control that uses at least the second information when the operating member is operated.

    摘要翻译: 一种图像拾取装置,包括:第一检测器,被配置为产生与拾取图像的对比度状态对应的第一信息;第二检测器,被配置为检测用于聚焦控制的第二信息,并且不同于第一信息;控制器配置 以提供焦点控制,以及由用户操作的第一操作构件,其中,所述控制器提供使用所述第一信息的焦点控制,但是当所述第一操作构件未被操作时不使用所述第二信息,并且提供所述焦点控制, 当操作构件被操作时至少使用第二信息。

    Focus adjusting apparatus and focus adjusting method

    公开(公告)号:US07079187B1

    公开(公告)日:2006-07-18

    申请号:US09439555

    申请日:1999-11-12

    申请人: Hitoshi Yasuda

    发明人: Hitoshi Yasuda

    IPC分类号: H04N5/232

    CPC分类号: H04N5/23212

    摘要: An apparatus, such as a focus adjusting apparatus, includes a focus adjusting system, a driving device which drives the focus adjusting system from one of a state in which a near-distance object is in focus and a state in which a far-distance object is in focus to the other, and a control device which repeatedly performs determination of a focusing state of the focus adjusting system while causing the driving device to drive the focus adjusting system, and, if the focus adjusting system has been driven in one direction until the number of times of the determination repeatedly performed reaches a predetermined number of times, restrains the focus adjusting system from being driven in the one direction, so that a focus adjusting operation can be appropriately performed.

    Projector and image projection system
    84.
    发明授权
    Projector and image projection system 失效
    投影机和图像投影系统

    公开(公告)号:US07040762B2

    公开(公告)日:2006-05-09

    申请号:US10853801

    申请日:2004-05-25

    申请人: Hitoshi Yasuda

    发明人: Hitoshi Yasuda

    摘要: An image projector comprises a discharge lamp, image projecting means for displaying an image on a screen by emitting light from the discharge lamp, electric power regulating means for regulating the electric power supplied to the discharge lamp, a cooling fan for reducing the temperature of the discharge lamp or the image projecting means, a cooling fan controlling means for controlling the rotation of the cooling fan, and a sensor for detecting a temperature of the discharge lamp or the image projecting means, wherein the rotation of the cooling fan is stopped when the image projector is in a standby mode. In the standby mode, the cooling fan controlling means controls the rotation speed of the cooling fan based on the detected temperature.

    摘要翻译: 一种图像投影仪,包括放电灯,用于通过从放电灯发出光来在屏幕上显示图像的图像投影装置,用于调节供给到放电灯的电力的电力调节装置,用于降低放电灯的温度的冷却风扇 放电灯或图像投影装置,用于控制冷却风扇的旋转的冷却风扇控制装置和用于检测放电灯或图像投影装置的温度的传感器,其中当冷却风扇的旋转停止时 图像投影机处于待机模式。 在待机模式下,冷却风扇控制装置根据检测到的温度来控制冷却风扇的转速。

    Focus adjusting apparatus and focus adjusting method
    86.
    发明申请
    Focus adjusting apparatus and focus adjusting method 失效
    聚焦调节装置和聚焦调整方法

    公开(公告)号:US20050285969A1

    公开(公告)日:2005-12-29

    申请号:US11215690

    申请日:2005-08-30

    申请人: Hitoshi Yasuda

    发明人: Hitoshi Yasuda

    IPC分类号: H04N5/232

    CPC分类号: H04N5/23212

    摘要: An apparatus, such as a focus adjusting apparatus, includes a focus adjusting system, a driving device which drives the focus adjusting system from one of a state in which a near-distance object is in focus and a state in which a far-distance object is in focus to the other, and a control device which repeatedly performs determination of a focusing state of the focus adjusting system while causing the driving device to drive the focus adjusting system, and, if the focus adjusting system has been driven in one direction until the number of times of the determination repeatedly performed reaches a predetermined number of times, restrains the focus adjusting system from being driven in the one direction, so that a focus adjusting operation can be appropriately performed.

    摘要翻译: 诸如焦点调节装置的装置包括聚焦调节系统,从近距离物体聚焦的状态之一驱动聚焦调节系统的驱动装置以及远距离物体 与另一方聚焦,以及控制装置,其在使驱动装置驱动聚焦调节系统的同时重复地进行聚焦调节系统的聚焦状态的确定,并且如果聚焦调节系统已经被驱动到一个方向直到 重复执行的判断次数达到预定次数,从而抑制聚焦调节系统沿一个方向的驱动,从而可以适当地进行聚焦调整操作。

    Image sensing method and apparatus capable of performing vibration correction when sensing a moving image
    87.
    发明授权
    Image sensing method and apparatus capable of performing vibration correction when sensing a moving image 失效
    能够在感测运动图像时进行振动校正的图像感测方法和装置

    公开(公告)号:US06963361B1

    公开(公告)日:2005-11-08

    申请号:US09255549

    申请日:1999-02-22

    IPC分类号: H04N5/225 H04N5/228 H04N5/232

    摘要: A correction variable is calculated based on vibration data of an image sensing apparatus. Based on the calculation result, timing of reading image signals from an image sensing device is controlled. The read image signals are delayed by predetermined time, the read image signals and the delayed image signals are added at a predetermined addition ratio based on the calculation result of the correction variable calculator. In still image sensing, the above addition operation is not performed.

    摘要翻译: 基于图像感测装置的振动数据计算校正变量。 基于计算结果,控制从图像感测装置读取图像信号的定时。 读取的图像信号被延迟预定的时间,基于校正变量计算器的计算结果,以预定的相加比率添加读取的图像信号和延迟的图像信号。 在静止图像感测中,不执行上述相加操作。

    Image pickup apparatus for varying filter characteristics for focus adjustment
    88.
    发明授权
    Image pickup apparatus for varying filter characteristics for focus adjustment 失效
    用于调整焦距调整的滤镜特性的摄像装置

    公开(公告)号:US06507367B2

    公开(公告)日:2003-01-14

    申请号:US08874704

    申请日:1997-06-13

    申请人: Hitoshi Yasuda

    发明人: Hitoshi Yasuda

    IPC分类号: H04N5232

    CPC分类号: H04N5/23212

    摘要: An image pickup apparatus includes a filter for extracting, from a video signal, a high-frequency component which varies with a state of focusing, and a control part arranged to control a cutoff frequency of the filter according to a luminance level in the video signal.

    摘要翻译: 图像拾取装置包括:滤波器,用于从视频信号中提取根据聚焦状态变化的高频分量;以及控制部分,被配置为根据视频信号中的亮度级控制滤波器的截止频率 。

    Image pickup apparatus having focus detection area size dependent on aspect ratio
    89.
    发明授权
    Image pickup apparatus having focus detection area size dependent on aspect ratio 失效
    具有取决于长宽比的焦点检测区域尺寸的图像拾取装置

    公开(公告)号:US06333761B2

    公开(公告)日:2001-12-25

    申请号:US08831476

    申请日:1997-03-31

    申请人: Hitoshi Yasuda

    发明人: Hitoshi Yasuda

    IPC分类号: H04N5225

    CPC分类号: H04N5/23293

    摘要: An image pickup apparatus is arranged to vary the size of a focus detecting area and/or a light measuring area when the aspect ratio of an image plane is changed, so as to optimize the focus detecting area and/or the light measuring area with respect to the image plane.

    摘要翻译: 图像拾取装置被布置成当图像平面的纵横比改变时改变焦点检测区域和/或光测量区域的尺寸,以便优化聚焦检测区域和/或光测量区域 到图像平面。

    Automatic focus adjusting device
    90.
    发明授权
    Automatic focus adjusting device 失效
    自动调焦装置

    公开(公告)号:US6163340A

    公开(公告)日:2000-12-19

    申请号:US617049

    申请日:1996-03-18

    申请人: Hitoshi Yasuda

    发明人: Hitoshi Yasuda

    IPC分类号: G02B7/36 G03B13/00

    CPC分类号: G02B7/36

    摘要: An automatic focus adjusting device is provided with an AF evaluation value detecting circuit for detecting an AF evaluation value indicative of a focusing state of a lens, a lens driving part for moving the lens in an optical axis direction, a control circuit for controlling the lens driving part on the basis of the AF evaluation value detected by the AF evaluation value detecting circuit in such a way as to cause the lens to move back and forth by a predetermined amount of movement at a time until the AF evaluation value becomes a maximum value, an inversion detecting circuit for detecting inversion of a direction of movement of the lens, and an altering circuit for altering the predetermined amount of movement of the lens in response to detection of the inversion by the inversion detecting circuit.

    摘要翻译: 一种自动对焦调整装置,具有:AF评价值检测电路,用于检测表示透镜的聚焦状态的AF评价值,使透镜在光轴方向上移动的透镜驱动部,控制透镜的控制电路 基于由AF评估值检测电路检测到的AF评估值的驱动部分,使得透镜一次移动预定的移动量直到AF评估值变为最大值 ,用于检测透镜的移动方向的反转的反转检测电路,以及响应于反相检测电路的反转检测而改变透镜的预定移动量的改变电路。