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公开(公告)号：US20040202462A1
公开(公告)日：2004-10-14
申请号：US10809805
申请日：2004-03-26
发明人： Yasuhiro Miwa
IPC分类号： G03B013/36
摘要： A camera includes a light emitter, a light detector, a clamp circuit, a calculator for outputting an output ratio signal, a converter for converting the output ratio signal into a distance signal corresponding to the distance or a predetermined fixed value, a light meter for measuring the luminance of outside light, and an exposure control that, when the luminance of the outside light measured by the light meter is lower than a predetermined switchover luminance, controls the aperture of the camera lens to a released aperture value, and when higher than the predetermined switchover luminance, controls the aperture of the camera lens to increase corresponding to the luminance. A first auto-focus (AF) signal value corresponds to an infinity determination distance and a second AF signal value corresponds to the switchover luminance. The AF signal value, which corresponds to the shorter range, is set as an infinity determination threshold value.
摘要翻译： 相机包括发光器，光检测器，钳位电路，用于输出输出比率信号的计算器，用于将输出比信号转换成对应于距离或预定固定值的距离信号的转换器，用于 测量外部光的亮度，以及当由光度计测量的外部光的亮度低于预定的切换亮度时，将相机透镜的光圈控制为释放的光圈值的曝光控制，并且当高于 预定的切换亮度控制相机镜头的光圈相应于亮度而增加。 第一自动对焦（AF）信号值对应于无穷远确定距离，第二AF信号值对应于切换亮度。 对应于较短范围的AF信号值被设定为无穷大确定阈值。
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公开(公告)号：US20040190888A1
公开(公告)日：2004-09-30
申请号：US10808467
申请日：2004-03-25
发明人： Yasuhiro Miwa
IPC分类号： G03B013/00
CPC分类号： G03B13/36
摘要： A distance measuring device includes light a projector for projecting a beam of light onto an object at a distance to be measured, a light detector for detecting the part of the beam of light reflected from the object and outputting an output signal, an integrator for discharging or charging an integration capacitor corresponding to the output signal to integrate the output signal, an analog-to-digital converter for converting the voltage of the integration capacitor after a predetermined number of repetitions of a distance measuring routine, and a detector for detecting the distance to the object based on the converted signal, wherein the number of repetitions of the distance measuring routine is set to saturate the integration capacitor through the repetition, when the object is located at a short range alarm position.
摘要翻译： 距离测量装置包括：光投影仪，用于将光束投射到待测量距离的物体上;光检测器，用于检测从物体反射的光束的一部分并输出输出信号;积分器，用于放电 或对与输出信号相对应的积分电容器进行充电以对输出信号进行积分;模拟 - 数字转换器，用于在预定次数的重复测量程序之后转换积分电容器的电压;以及检测器，用于检测距离 基于转换后的信号，将物体位于短距离报警位置的情况下，将距离测量程序的重复次数设定为通过重复使积分电容器饱和。
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公开(公告)号：US20040189975A1
公开(公告)日：2004-09-30
申请号：US10809480
申请日：2004-03-26
发明人： Yasuhiro Miwa
IPC分类号： G01C003/08 , G03B007/099 , G02B007/28 , G03B013/00
摘要： A distance measuring device includes a light emitter, a light detector, a clamp that outputs long-range side signal or clamp signal, a calculator that calculates the ratio between the short-range side signal and the signal output from the clamp and outputs a ratio signal, a light meter measuring the luminance of outside light, a threshold setter that sets up an infinity determination threshold value such that a lower luminance of the outside light corresponds to the longer range side as a threshold value; a converter that, when the output ratio signal is the signal corresponding to the short range side and is shorter than the infinity determination threshold value, converts the output ratio signal into a distance signal, and, if not, converts the output ratio signal into a distance signal having a fixed value.
摘要翻译： 距离测量装置包括光发射器，光检测器，输出远程侧信号或钳位信号的钳位器，计算器，其计算短距离侧信号与从钳位器输出的信号之间的比率，并输出比率 信号，测量外部光的亮度的光度计;阈值设定器，其设定无限大判定阈值，使得外部光的较低亮度对应于较长范围侧作为阈值; 转换器，当输出比信号是对应于短距离侧并且短于无穷大确定阈值的信号时，将输出比信号转换成距离信号，如果不是，则将输出比信号转换为 距离信号具有固定值。
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