Laser ray projector and remote measuring device comprising at least two of these projectors
OwnerLucien Bouillot, Bernard Barthelemyinventors
Life of this patent
Estimating the term…
Abstract
A laser ray projector and remote measuring device comprising at least two of these projectors, wherein the measuring device comprises two laser ray projectors servo-controlled in position. Each of them comprises a spindle rotating through 180.degree. in one direction and in another from a certain point and a head secured to this spindle and rotating through 90.degree. in one direction and in the other from an origin. This head carries a prism which receives in each projector a laser ray issuing from a single source whereby rotation of the spindle and of the head enables each ray to scan all the points of a hemisphere. A computer makes it possible to convert the angular coordinates into cartesian coordinates.
Claims11
A laser ray projector for selectively projecting a laser ray from a source comprising a fixed casing, a spindle mounted within said casing so as to be rotatably moved with respect thereto about a first geometrical axis, said spindle having inner and outer portions, a head mounted to said outer portion of said spindle, means for rotating said head about a second geometrical axis generally perpendicular to said first geometrical axis, a bore through said spindle and oriented along said first geometrical axis, optical means for directing the laser ray from the source through said bore and thereafter into said second geometrical axis of said head, and a prism carried by said head for reflecting the laser ray from said optical means in a moveable plane containing said first geometrical axis of said spindle.
A remote measuring device comprising a pair of laser ray projectors, each of said laser ray projectors including a fixed casing, a spindle mounted within each of said casings so as to be rotatably moved with respect thereto about first geometrical axes, said spindles having inner and outer portions, a head mounted to said outer portion of each of said spindles, means for rotating each of said heads about second geometrical axes which are generally perpendicular to said first geometrical axes, a bore through each of said spindles and oriented along said first geometrical axes, each of said laser ray projectors including optical means for directing a laser ray through said bores and thereafter into said second geometrical axes of said head, a prism carried by each of said heads for reflecting the laser ray in a moveable plane containing said first geometrical axes of each of said spindles, and a laser ray emitter for directing the laser ray to said optical means of each of said laser ray projectors whereby each of said laser ray projectors may be aimed on a point whose coordinates it is desired to obtain.
Dependencies are inferred from the claim text.