Pentadividido laser beam device, auto-leveling.

A method for producing a plurality of light beams with a single laser source into a laser alignment device, comprising: providing a laser source (4) for producing a beam of laser radiation (9); placed in the beam path a reflective device (54), formed from a single block, having an opening (58) and a plurality of reflecting faces (56a-d) with side edges that do not connect with the side edges of the facets adjacent, said reflective device being oriented so that a first portion of the beam passes through an opening (58) along its original axis, and a second portion of the beam is reflected along a different axis.