Patent ID: 6195902
Filing Date: 2001-03-06
Classification: G01C,Y10S

Abstract:
A laser extender assembly, comprising:(a) a laser extender having:a housing having an external basic flat plane thereon for resting upon a flat surface, the basic flat plane having a straight edge defining a reference line, and the housing having an internal accomodating space therein and a plurality of through holes for accessing the internal accomodating space from the exterior of the housing; anda laser unit located inside said internal accomodating space, for generating a spanning plane laser beam therefrom that is perpendicular to said basic flat plane and that extends the reference line defined by the straight edge; and(b) a beam leveler having a housing that removably couples the housing of the laser extender, a base plane thereon for resting upon a flat surface, and a leveling unit for inspecting leveling status of the base plane, the base plane further including a main edge thereon, such that the base plane is coplanar with the basic flat plane, and the main edge is aligned with the straight edge, when the housing of the beam leveler is coupled with the housing of the laser extender.