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1. 发明授权

US08390793B2 Optical ranging sensor and electronic equipment 有权
标题翻译：光学测距传感器和电子设备
公开(公告)号：US08390793B2
公开(公告)日：2013-03-05
申请号：US12978700
申请日：2010-12-27
申请人： Akifumi Yamaguchi , Hideo Wada , Masaru Kubo , (Jason) Chih-Hung Lu
发明人： Akifumi Yamaguchi , Hideo Wada , Masaru Kubo , (Jason) Chih-Hung Lu
IPC分类号： G01C3/08
CPC分类号： G01C3/085
摘要： An optical ranging sensor includes a light emitting unit for projecting a light beam on an object to be measured, a light receiving unit on which a light spot of reflected light of the light beam from the object is formed, and a processing circuit unit for processing output signals from the light receiving unit and detecting a distance to the object. The light receiving unit includes an effective light receiving part having light receiving cells arranged in matrix form in a first direction in which a position of the light spot moves as the object moves along a direction of an optical axis of the light emitting unit, and in a second direction orthogonal to the first direction. A size of the effective light receiving part in the second direction is not smaller than a radius of the light spot but not larger than a diameter thereof.
摘要翻译：一种光学测距传感器，包括：用于将光束投射在待测物体上的发光单元，形成有来自物体的光束的反射光的光点的光接收单元;以及处理电路单元，从光接收单元输出信号并检测到物体的距离。光接收单元包括有效光接收单元，该有效光接收单元具有沿着第一方向排列成矩阵形状的光接收单元，其中当物体沿着发光单元的光轴方向移动时，光点的位置移动，与第一方向正交的第二方向。第二方向上的有效光接收部的尺寸不小于光斑的半径，但不大于其直径。

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