초록 ▼

An apparatus for use with a compact self-leveling construction laser for the purpose of allowing the user to remotely call or page the measurement beam to his location using a retroreflector. The apparatus uses an auxiliary plumb beam provided by the construction laser for scanning the job site in s

An apparatus for use with a compact self-leveling construction laser for the purpose of allowing the user to remotely call or page the measurement beam to his location using a retroreflector. The apparatus uses an auxiliary plumb beam provided by the construction laser for scanning the job site in search of the cooperative reflector. The invention consists of a construction laser, motor driven turntable assembly to which the construction laser is attached and a cooperative reflector carried by the operator.

대표청구항 ▼

A system for use in layout of points or lines using at least one projected laser beam, comprising: a hand carryable self-leveling laser instrument having an instrument housing and means for projecting at least one substantially horizontal laser beam in spite of a small tilt of the housing, a remotel

A system for use in layout of points or lines using at least one projected laser beam, comprising: a hand carryable self-leveling laser instrument having an instrument housing and means for projecting at least one substantially horizontal laser beam in spite of a small tilt of the housing, a remotely controlled turntable unit independent and separate from the laser instrument and having a turntable unit housing, a turntable located in the turntable unit housing, motor means for rotating the turntable relative to the housing, and means for securing the laser instrument on the turntable, laser scanner means in the turntable unit housing for scanning a beam in a scanned plane near the horizontal beam, cooperative reflecting means used from a remote position to return reflected light from the scanned plane back toward the turntable unit housing, optical detection means in the turntable unit housing for receiving said reflected light, scan angle determining means within the turntable housing, for determining an angle from which the reflected light was returned, relative to the turntable unit housing, including electronic detection means to receive the reflected light and to produce an amplified signal from the reflected light, and electronic determination means for determining the needed turntable rotation to point the horizontal laser beam toward the cooperative reflecting means from which the reflected light originates, and electronic means for activating said motor means to rotate the turntable to a position of pointing the horizontal laser beam toward the cooperative reflecting means in accordance with said electronic determination means, whereby an operator can call or page the horizontal laser beam to his location using the cooperative reflecting means.