초록 ▼

A level comprises a body, a body orientation detector, a laser beam source, a laser beam configuring lens, and a manually engageable lens switch. The body orientation indicator is carried by the body and constructed and arranged to indicate an orientation of the body. The laser beam source is carrie

A level comprises a body, a body orientation detector, a laser beam source, a laser beam configuring lens, and a manually engageable lens switch. The body orientation indicator is carried by the body and constructed and arranged to indicate an orientation of the body. The laser beam source is carried by the body and constructed and arranged to emit a laser beam from the body to a location on a surface remote from the body, the laser beam being directed at a predetermined orientation with respect to the body to interrelate the orientation of the body with respect to the location on the surface remote from the body. The laser beam configuring lens assembly is carried by the body and movable between a first position and a second position with respect to the laser beam source. The laser beam configuring lens assembly splits the laser beam emitted by the laser beam source into a cross-hair beam configuration when the laser beam configuring lens is in the first position, and enables the beam to be transmitted as a point beam that projects a point of illumination onto the remote surface when the laser beam configuring lens assembly is in the second position. The manually-engageable lens switch is carried by the body and coupled to the laser beam configuring lens assembly. The lens switch is manually movable to move the laser beam configuring lens assembly between the first and second positions thereof.

대표청구항 ▼

1. A level comprising:a body having a body surface constructed and arranged to be engaged with a reference surface; a body orientation indicator carried by said body and constructed and arranged to indicate an orientation of said body, and hence an orientation of the reference surface when the body

1. A level comprising:a body having a body surface constructed and arranged to be engaged with a reference surface; a body orientation indicator carried by said body and constructed and arranged to indicate an orientation of said body, and hence an orientation of the reference surface when the body surface is engaged therewith; a laser beam source carried by said body and constructed and arranged to emit a laser beam from said body to a location on a surface remote from said body, the laser beam being directed at a predetermined orientation with respect to said body to interrelate the orientation of said body, and hence the reference surface engaged with the body surface, with respect to the location on the surface remote from said body; a laser beam configuring lens assembly carried by said body and moveable between a first position and a second position with respect to said laser beam source, said laser beam configuring lens assembly being constructed and arranged to split the laser beam emitted by said laser beam source into a cross-hair beam configuration when said laser beam configuring lens assembly is in said first position, and to enable said laser beam to be transmitted as a point beam that projects a point of illumination onto a remote surface when said laser beam configuring lens assembly is in said second position, said cross-hair beam including first and second elongated beam portions oriented with respect to said body surface such that said first elongated beam portion is disposed generally perpendicular to said reference surface when said body surface is engaged with said reference surface and said second elongated beam portion is disposed generally parallel to said reference surface when said body surface is engaged with said reference surface; and a manually engageable lens switch carried by said body and coupled to said laser beam configuring lens assembly, said manually engageable lens switch being manually movable to move said laser beam configuring lens assembly between said first and second positions thereof.