Optics: measuring and testing – Fiducial instruments
Patent
1989-04-14
1990-11-27
McGraw, Vincent P.
Optics: measuring and testing
Fiducial instruments
33291, G01C 500
Patent
active
049731580
ABSTRACT:
A collimator solid state laser light source is spun at a very high speed to generate a reference plane for use in the construction industry. The drive housing and the laser light source are extremely compact, light and portable, and can be mounted to a surveyor's transit and telescope. Within the housing is a drive shaft which has the laser light source attached at precisely 90 degrees to the spin axis of the drive shaft. A logic circuit is also attached to the drive shaft so that the logic circuit board, the drive shaft, and the laser light source are all rotated as a unit. An electric motor and a motor control board card are positioned within the housing for rotating the drive shaft. The operator first calibrates the transit so that it is horizontal and positioned in plumb above the reference point. The rotating laser source provides a reference plane so that the construction crew can monitor their progress to insure that the walls and floors are aligned correctly by means of having a laser beam detector to sense the laser plane generated by the laser unit.
REFERENCES:
patent: 3462845 (1969-08-01), Matthews
patent: 3471234 (1969-10-01), Studebaker
patent: 3579846 (1971-05-01), Catherin
patent: 3822943 (1974-07-01), Mason
McGraw Vincent P.
Turner S. A.
LandOfFree
Rotating laser beam reference plane instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotating laser beam reference plane instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotating laser beam reference plane instrument will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1028855