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    • 41. 发明授权
    • Image pickup apparatus
    • 摄像设备
    • US06882368B1
    • 2005-04-19
    • US09604743
    • 2000-06-28
    • Yasuo Suda
    • Yasuo Suda
    • H04N9/04H04N5/225
    • H04N9/045H04N5/3415
    • An image pickup apparatus is provided having first and second image pickup portions for receiving at least first and second distinct wavelength components of object light, respectively, and first and second optical systems for guiding the first and second wavelength components to the first and second image pickup portions, respectively, via different optical paths. The first and second optical systems are formed to have respective shapes so that the focal length of the first optical system with regard to the first wavelength component is equal to the focal length of the second optical system with regard to the second wavelength component. When a virtual object distance, as defined as set forth herein, an interval between optical axes of the first and second optical systems is set such that a change in an interval between object images of the first and second wavelength components received by the first and second image pickup portions, respectively, between when an object exists at the virtual object distance and when it exists at infinity is smaller than a pixel pitch of the image pickup portions multiplied by two.
    • 一种图像拾取装置,具有分别用于分别接收物体光的至少第一和第二不同波长分量的第一和第二图像拾取部分,以及用于将第一和第二波长分量引导到第一和第二图像拾取器的第一和第二光学系统 分别经由不同的光路。 第一和第二光学系统形成为具有各自的形状,使得第一光学系统相对于第一波长分量的焦距等于第二光学系统相对于第二波长分量的焦距。 当如本文所述定义的虚拟对象距离被设置为第一和第二光学系统的光轴之间的间隔,使得由第一和第二光学系统接收的第一和第二波长分量的对象图像之间的间隔的变化 分别在物体存在于虚拟对象距离处和当其存在于无限远处时的图像拾取部分小于图像拾取部分的像素间距乘以2。
    • 42. 发明授权
    • Focus detecting device
    • 对焦检测装置
    • US5678097A
    • 1997-10-14
    • US151779
    • 1993-11-15
    • Yasuo Suda
    • Yasuo Suda
    • G03B13/36G02B7/34G03B3/00G03B13/18
    • G02B7/346
    • A focus detecting device having a light distribution forming device for forming the light intensity distribution whose relative position varies in accordance with the focus adjustment of an object lens from the light flux passing through the object lens, a sensing device for receiving the light intensity distribution and outputting a signal representing the state of focus adjustment of the object lens based on the relative position in the light intensity distribution, and having a plurality of sensing elements, and a light diffusing device disposed in or near a predetermined imaging plane of the object lens, and having the degree of light diffusion determined so that the light intensity distribution can be moved relatively in accordance with the adjustment of the object lens.
    • 一种聚焦检测装置,具有用于形成相对位置根据物镜的焦点调节而变化的光强度分布的光分布形成装置,该光束分布形成装置具有:通过物镜的光束;受光装置, 基于所述光强分布中的相对位置输出表示所述物镜的焦点调整状态的信号,并具有多个感测元件,以及设置在所述物镜的预定成像面内或附近的光漫射装置, 并且具有确定光扩散度使得可以根据物镜的调节相对地移动光强度分布。
    • 43. 发明授权
    • Image pickup apparatus for controlling accumulation time in
photoelectric elements
    • 用于控制光电元件中的累积时间的摄像装置
    • US5182658A
    • 1993-01-26
    • US758303
    • 1991-08-28
    • Akira IshizakiKenji SuzukiKeiji OhtakaYasuo Suda
    • Akira IshizakiKenji SuzukiKeiji OhtakaYasuo Suda
    • G02B7/36H04N5/235
    • G02B7/36H04N5/2352H04N5/2353
    • There is provided an image pickup apparatus having a plurality of photoelectric converting elements which can accumulate the photoelectrically converted charges. This apparatus comprises: detecting circuiting for detecting whether the maximum value of outputs of the photoelectric converting elements has reaced a level near the saturation level thereof or not; time circuiting for timing a predetermined time from the start of the accumulation of the photoelectric converting elements; amplifying circuiting for amplifying outputs of the photoelectric converting elements; accumulation control circuiting for finishing the accumulating operation on the basis of either one of the facts that the detecting circuiting has detected that the maximum value had reached the saturation level, that the timer circuiting has timed the elapse of a predetermined time, and that the signal indicating that the output level of the photoelectric converting elements had reached the predetermined level has been input; and a variable gain circuit to determine an amplification factor of the amplifying circuiting in accordance with the output level of the photoelectric converting elements.
    • 提供一种具有多个可以累积光电转换电荷的光电转换元件的图像拾取装置。 该装置包括:检测电路,用于检测光电转换元件的输出的最大值是否已经达到接近其饱和电平的电平; 时间电路,用于从光电转换元件的累积开始定时预定时间; 用于放大光电转换元件的输出的放大电路; 基于检测电路已经检测到最大值达到饱和电平的事实之一,定时器电路已经使经过了预定时间的时间的任一事实,完成累加操作的累加控制电路,以及信号 表示已经输入光电转换元件的输出电平达到预定值; 以及可变增益电路,以根据光电转换元件的输出电平确定放大电路的放大系数。