Patent ID: 8605274
Filing Date: 2013-12-10
Classification: G01C

Abstract:
1. A method of orienting a reference plane of laser light generated by a transmitter, the transmitter including a positioning arrangement that adjusts the angular orientation of the reference plane with respect to a first transmitter axis and with respect to a second transmitter axis perpendicular thereto, the laser light being detected by first and second detectors, comprising the steps of: defining a first alignment direction from said transmitter by positioning said first detector in said first alignment direction for illumination with said plane of laser light; defining a second alignment direction from said transmitter by positioning said second detector in said second alignment direction for illumination with said plane of laser light; determining with a processor the orientation of said first alignment direction with respect to said first and second transmitter axes; determining with a processor the orientation of said second alignment direction with respect to said first and second transmitter axes, including the steps of determining the inclination in the direction of said first and second transmitter axes of a first plane which is detected by the second detector, and determining the inclination in the direction of said first and second transmitter axes of a second plane which is detected by the second detector; specifying the desired orientation of said reference plane in said first and second alignment directions; determining with a processor the angular orientation of said reference plane with respect to said first transmitter axis and with respect to said second transmitter axis needed to position said reference plane in said desired orientation; and orienting said reference plane with respect to said first and second transmitter axes such that said desired orientation of said reference plane in said first and second alignment directions is achieved.