| 摘要 |
PURPOSE:To detect a two-dimensional direction by a simple constitution, by aligning the tip of an optical fiber in a line and in a fixed direction on an image forming face of two objective cameras, and providing a one-dimensional image sensor in the line direction of the base end of the fiber on an image forming face of a measuring camera. CONSTITUTION:When the left and right intervals between a light spot P projected onto the face and optical axes of lenses 11, 21, a distance between the spot P and the lenses 11, 21, magnification of the lenses 11, 21, magnification of a lens 31, and intervals between a formed image by the lenses 11, 21 on a sensor 32 and the center line S of the sensor 32 are denoted as X1, X2, and Y, m1, m2, and x1, x2, respectively, values of x1, x2 are outputted from a peak position of an output curve PS of the sensor 32. x1, x2 and Y are derived from the values of x1, x2, and the left and right, and before and bihind position of the spot P can be known. |
