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    • 83. 发明申请
    • Camera and method of imaging
    • 相机和成像方法
    • US20070189758A1
    • 2007-08-16
    • US11656983
    • 2007-01-24
    • Hiroyuki Iwasaki
    • Hiroyuki Iwasaki
    • G03B7/08
    • G03B7/08
    • A camera includes a photometry section, an exposure calculating section, and a correction calculating section. The photometry section obtains photometry values at a plurality of positions of a subject. The exposure calculating section obtains an exposure value when photographing based on the photometry values. The correction calculating section obtains a correction value for correction of the exposure value based on a highest value among photometry values belonging to a predetermined range out of the plurality of photometry values obtained by the photometry section.
    • 相机包括测光部分,曝光计算部分和校正计算部分。 测光部分在对象的多个位置处获得测光值。 曝光计算部根据测光值取得拍摄时的曝光值。 校正计算部分根据由测光部分获得的多个测光值中的属于预定范围的测光值中的最高值,获得用于校正曝光值的校正值。
    • 84. 发明申请
    • Camera system
    • 相机系统
    • US20070189754A1
    • 2007-08-16
    • US10589354
    • 2005-02-09
    • Hiroyuki Iwasaki
    • Hiroyuki Iwasaki
    • G03B15/03
    • H04N5/2256H04N5/23245H04N5/2354
    • The present invention relates to a camera system that illuminates a subject being photographed and its object is to provide the camera system capable of photographing at a shutter speed exceeding a synchronous speed or continuous shooting. An electronic camera according to the present invention controls a xenon tube (81) to emit flash light at a shutter speed lower than the synchronous speed in a single-shot photographing mode, and controls a LED (83a) to emit light at a shutter speed exceeding the synchronous speed so as to continuously emit light while a slit defined by a shutter front curtain and a rear curtain is moving over an effective imaging area of an imaging element. When performing a rear curtain sync photographing or front curtain photographing in a single-shot photographing mode, the xenon tube (81) emits flash light. When a low-speed photographing operation is executed in a single-shot photographing mode, the LED (83a) emits light so that light emission continues while electrical charges are stored at the imaging element. In a continuous shooting mode, the LED (83a) emits light so as to continue light emission while the electrical charges are stored at the imaging element and to stop the light emission when the stored charges are being transferred.
    • 本发明涉及一种照明拍摄对象的照相机系统,其目的是提供能够以超过同步速度或连续拍摄的快门速度拍摄的照相机系统。 根据本发明的电子照相机控制氙灯(81)以单次拍摄模式以低于同步速度的快门速度发射闪光灯,并且控制LED(83a)以快门发光 速度超过同步速度,以便在由快门前帘和后帘限定的狭缝在成像元件的有效成像区域上移动的同时连续地发光。 当以单次拍摄模式执行后帘同步拍摄或前帘拍摄时,氙气管(81)发射闪光。 当以单次拍摄模式执行低速拍摄操作时,LED(83a)发射光,使得在电荷存储在成像元件处继续发光。 在连续拍摄模式中,LED(83a)发光,以便当电荷存储在成像元件处时继续发光,并且当存储的电荷正在传送时停止发光。
    • 86. 发明授权
    • Zoom lens device with zooming position detector
    • 变焦镜头设备带变焦位置检测器
    • US6104549A
    • 2000-08-15
    • US299637
    • 1999-04-27
    • Hiroyuki Iwasaki
    • Hiroyuki Iwasaki
    • G02B7/10G02B15/14
    • G02B7/10G02B15/14
    • A zoom lens device has a zooming position detector consisting of a code plate and a brush device. The code plate is mounted to a front face of a shutter unit that is attached to a front end of an axial movement barrel. The axial movement barrel is located inside a helical movement barrel so as to be immovable in the axial direction relative to the helical movement barrel, but is rotated relative to the helical movement barrel for zooming. The brush device is mounted to an inner peripheral portion of a lens barrel that is located near the face of the shutter unit and rotates relative to the face of the shutter unit, such that the electric contact strips brush the code plate while the shutter unit rotates relative to the lens barrel for zooming. A zooming position of the zoom lens device is determined based on output signals from the brush device.
    • 变焦透镜装置具有由代码板和刷装置构成的变焦位置检测器。 代码板被安装到附接到轴向移动筒的前端的快门单元的前表面。 轴向移动筒位于螺旋运动筒内侧,以便相对于螺旋运动筒在轴向上不可移动,但是相对于螺旋运动筒旋转以进行变焦。 刷装置安装到位于靠近快门单元的表面处的镜筒的内周部分,并相对于快门单元的表面旋转,使得电动接触条在快门单元旋转时刷毛码 相对于镜头镜筒进行变焦。 基于来自刷装置的输出信号确定变焦镜头装置的变焦位置。
    • 89. 发明授权
    • Zoom lens device
    • 变焦镜头设备
    • US5790903A
    • 1998-08-04
    • US912399
    • 1997-08-18
    • Hiroyuki IwasakiHiroshi Tsuchitani
    • Hiroyuki IwasakiHiroshi Tsuchitani
    • G02B7/10G03B5/00G03B13/36
    • G02B7/102
    • A zoom lens device has a helical movement barrel and a drive ring mounted in a fixed barrel to be rotatable about an optical axis. The helical movement barrel holds front and rear lens groups therein. The drive ring is rotated by a motor through gears. The drive ring is coupled to a helical movement barrel with a clearance in the circumferential direction, so the drive ring can rotate relative to the helical movement barrel within an angle defined by the clearance. While the drive ring rotates relative to the helical movement barrel, the rotational movement of the drive ring causes a cam barrel to move along the optical axis relative to the helical movement barrel. The axial movement of the cam barrel causes the rear lens group to move along the optical axis. When the drive ring is rotated beyond the angle defined by the clearance, the rotational movement of the drive ring causes the helical movement barrel to rotate together with the cam barrel. As the helical movement barrel moves along the optical axis while rotating, the front and rear lens groups moves along the optical axis. The rear lens group moves relative to the front lens group with the rotation of the cam barrel.
    • 变焦透镜装置具有螺旋运动镜筒和安装在固定镜筒中以绕光轴转动的驱动环。 螺旋运动筒保持前后透镜组。 驱动环由电机通过齿轮旋转。 驱动环在圆周方向上具有间隙的螺旋运动筒联接,因此驱动环可以在由间隙限定的角度内相对于螺旋运动筒旋转。 当驱动环相对于螺旋运动筒旋转时,驱动环的旋转运动使得凸轮筒相对于螺旋运动筒沿光轴移动。 凸轮筒的轴向运动导致后透镜组沿着光轴移动。 当驱动环旋转超过由间隙限定的角度时,驱动环的旋转运动导致螺旋运动筒与凸轮筒一起旋转。 当螺旋运动镜筒在旋转的同时沿着光轴移动时,前透镜组和后透镜组沿着光轴移动。 随着凸轮筒的旋转,后透镜组相对于前透镜组移动。