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    • 2. 发明授权
    • Imaging device and imaging system
    • 成像设备和成像系统
    • US08081251B2
    • 2011-12-20
    • US12096505
    • 2006-12-12
    • Toshihito KidoTakeru ButsusakiSatoshi Fukumoto
    • Toshihito KidoTakeru ButsusakiSatoshi Fukumoto
    • H04N5/222H04N5/225
    • G03B17/14G03B17/20G03B19/12H04N5/23209H04N5/23245H04N5/23293H04N5/343H04N5/3454
    • A plurality of exchange lenses designed for object exposure regions of different sizes can be selectively mounted on the present imaging device. The imaging device determines whether a mismatch state is present, in which the size of the object exposure region of an exchange lens mounted is smaller than the size of the imaging region of an imaging element. If it is determined that a mismatch state is present, an image of a partial region of the imaging region is generated and the image of the partial region is displayed as a live view image in a relatively large area (an area larger than an area for displaying the partial region in a live view display when no mismatch state is present). Accordingly, techniques for performing a live view display with favorable visibility are provided.
    • 设计用于不同尺寸的物体曝光区域的多个交换透镜可以选择性地安装在本成像装置上。 成像装置确定是否存在不匹配状态,其中安装的交换镜头的物体曝光区域的尺寸小于成像元件的成像区域的尺寸。 如果确定存在失配状态,则生成成像区域的部分区域的图像,并且将部分区域的图像作为实时取景图像显示在相对大的区域(大于用于 当不存在不匹配状态时,在实时取景显示中显示部分区域)。 因此,提供了用于执行具有良好可见性的实时取景显示的技术。
    • 3. 发明授权
    • Imaging apparatus
    • 成像设备
    • US08063944B2
    • 2011-11-22
    • US11914432
    • 2007-03-12
    • Toshihito Kido
    • Toshihito Kido
    • H04N5/228
    • H04N5/2353G03B7/093G03B9/36G03B17/14H04N5/2254H04N5/3532H04N2101/00
    • An image sensor includes a plurality of pixels arranged in a matrix and has an electronic focal plane shutter function for providing a predetermined reset signal to the pixels on a pixel line to pixel line basis to perform an exposure start operation. A mechanical focal plane shutter is disposed immediately before the image sensor. A control unit causes the image sensor to perform the exposure start operation using the electronic focal plane shutter function a predetermined period of time after a curtain group of the mechanical focal plane shutter is open and causes the mechanical focal plane shutter to perform an exposure end operation when a shutter speed is set to low. The control unit causes the mechanical focal plane shutter to perform the exposure start operation and the exposure end operation when the shutter speed is set to high.
    • 图像传感器包括以矩阵形式布置的多个像素,并且具有电子焦平面快门功能,用于在像素线到像素线的基础上向像素提供预定的复位信号,以执行曝光开始操作。 在图像传感器之前立即设置机械焦平面快门。 控制单元使得图像传感器在机械焦平面快门的窗帘组打开之后的预定时间段内使用电子焦平面快门功能来执行曝光开始操作,并使机械焦平面快门进行曝光结束操作 当快门速度设置为低时。 当快门速度设置为高时,控制单元使机械焦平面快门执行曝光开始操作和曝光结束操作。
    • 4. 发明申请
    • Image capturing apparatus, image sensor driving circuit, and image capturing method
    • 图像捕获装置,图像传感器驱动电路和图像捕获方法
    • US20060077267A1
    • 2006-04-13
    • US11112547
    • 2005-04-22
    • Toshihito Kido
    • Toshihito Kido
    • H04N5/335
    • H04N5/361
    • In an image capturing apparatus, a gain of an amplifier for amplifying an image signal output from an image sensor is variable, and a waveform pattern of drive pulses applied to the image sensor is changed in accordance with the gain. For example, when the gain is lower than 12 dB, the drive pulses are set to have an A pattern, to make the number of chare storage gates equal to four. When the gain is equal to or higher than 12 dB, the drive pulses are set to have a B pattern, to make the number of charge storage gates equal to three. In the image sensor, while an amount of dark noise decreases as the number of charge storage gates is smaller, the number of charge storage gates is reduced in the foregoing manner when the gain is set to a high value, to prevent degradation of a signal-to-noise ratio. Hence, degradation in quality of a captured image can be prevented even in photographing a subject with a low brightness.
    • 在摄像装置中,用于放大从图像传感器输出的图像信号的放大器的增益是可变的,并且根据增益改变施加到图像传感器的驱动脉冲的波形图案。 例如,当增益低于12dB时,驱动脉冲被设置为具有A图案,以使Chare存储门的数量等于4。 当增益等于或高于12dB时,驱动脉冲被设置为具有B图案,以使电荷存储门数等于3。 在图像传感器中,当暗电荷量随着电荷存储栅极数量的减小而减小时,当增益被设置为高值时,电荷存储栅极的数目以前述方式减少,以防止信号劣化 噪声比。 因此,即使拍摄低亮度的被摄体,也能够防止拍摄图像的质量下降。
    • 10. 发明申请
    • Image Pickup Apparatus
    • 图像拾取装置
    • US20080211922A1
    • 2008-09-04
    • US11911542
    • 2007-02-13
    • Nobuharu MurashimaToshihito KidoYoshiharau TanakaTsutomu Honda
    • Nobuharu MurashimaToshihito KidoYoshiharau TanakaTsutomu Honda
    • H04N5/228G03B17/00
    • H04N5/23248G03B5/02H04N5/2353H04N2101/00
    • In an imaging apparatus with a shake correction function, the influence of front curtain shock is prevented from being exerted on a shake correction function section (shake correction drive). The imaging apparatus includes a shake detection sensor 171 that detects an amount of shake applied to a digital camera, a shake correction unit 200 that performs a shake correction drive of an imaging device 101 on the basis of a shake amount detection signal, a shutter unit 40 that is arranged immediately in front of the imaging device 101 and performs an optical-path opening operation and an optical-path blocking operation for opening and blocking an optical path of light guided to the imaging device 101, a timing control circuit 51 that supplies a predetermined reset signal to each pixel for each predetermined pixel line so as to start exposure on the imaging device 101, and a shutter control section 623 that controls exposure of the imaging device 101. At the time of shooting, the shutter control section 623 executes an electronic shutter control (electronic focal plane shutter) for starting exposure on the imaging device 101 by means of the reset signal supplied to each pixel from the timing control circuit 51.
    • 在具有抖动校正功能的成像装置中,防止前帘式冲击的影响被施加到抖动校正功能部(抖动校正驱动)。 成像装置包括检测施加到数码相机的抖动量的抖动检测传感器171,基于抖动量检测信号执行成像装置101的抖动校正驱动的抖动校正单元200,快门单元 40,其立即设置在成像装置101的前方,并且执行光路打开操作和用于打开和阻挡被引导到成像装置101的光的光路的光路阻挡操作;定时控制电路51,其提供 针对每个预定像素行的每个像素预定的复位信号,以便在成像装置101上开始曝光;以及快门控制部分623,其控制成像装置101的曝光。 在拍摄时,快门控制部分623通过从定时控制电路51提供给每个像素的复位信号执行用于在成像装置101上开始曝光的电子快门控制(电子焦平面快门)。