Multi-beam optical spirit level providing method for e.g. angular measurement application during construction of building, involves determining, predefining and/or representing solid angle, and projecting multidimensional image

摘要

The method involves representing a visible extension of an associated axis by light radiation transmitted from a one-dimension or multi dimension optical system. A light transmitter (5) is connected with angular scales on both sides and is axially movable and adjustable. Function increments are achieved by adding and/or combination of transmitter slides. A solid angle is determined, predefined and/or represented. Multidimensional image is projected. A vertical axis and horizontal axes (A, B) are linearly or selective alterably displayed relative to each other.