Patent ID: 7121010

Claim:
A line generating device comprising: a housing; a support assembly mounted within the housing; a light source mounted on the support assembly such that said light source is fixed relative to said housing; a lens mounted on at least one of the support assembly and the light source, the lens receiving light from the light source and projecting the light in the shape of a fan within a plane, the lens generating a bright spot and a line when the light contacts a surface. a first level vial mounted on the support assembly, the first level vial having a first longitudinal axis substantially perpendicular to the plane; a second level vial mounted on the support assembly, the second level vial having a second longitudinal axis substantially parallel to the plane; and a third level vial mounted on the support assembly, the third level vial having a third longitudinal axis substantially parallel to the plane, the third longitudinal axis being substantially perpendicular to the second longitudinal axis.