Patent ID: 7804606
Filing Date: 2010-09-28
Classification: G01B

Abstract:
1. A portable electronic device for measuring a distance (D 1 ) between two points (E 1 , E 2 ), the portable electronic device comprising: a first surface facing and parallel to a line defined by the two points (E a measuring unit disposed at the first surface for measuring a distance (D a visible light emitter disposed at the first surface for generating a visible light beam and an initial direction of the visible light beam is substantially perpendicular to the first surface and the line defined by the two points (E a motor connecting with the visible light emitter for rotating the visible light emitter from the initial direction to pointing in another desired direction; an angle calculating unit for computing a first angle defined by the visible light beam striking the point (E a computing unit for computing the distance (D an output unit for outputting the distance (D