| 摘要 |
<p>The present invention relates to a laser scale for measuring length of a line or gap between lines on a drawing, which is connected wireless or wiredly to a computer or a monitoring program of a portable terminal mounted with an OS. With a main system displaying drawing and numerals and a pointing pen, the laser scale adopts a laser distance measuring technique and a trigonometric measurement utilizing the rotational angle of a stepping motor. By selecting both end points of a line with the pen, coordinates of two points X and Y are digitalized, and length between coordinates is calculated in a microcomputer at high precision and high speed. In addition, being connected to the integration program in the computer, the laser scale of the present invention can be advantageously used for preparing drawings, specifications, shopdrawings, account statements, etc.</p> |
