Laser ray projector and remote measuring device comprising at le

Details Laser ray projector and remote measuring device comprising at le Laser ray projector and remote measuring device comprising at le

1988-06-13

1990-02-20

Willis, Davis L.

Optics: measuring and testing

Fiducial instruments

Artificial reference

356 1, 356 3, 356138, 350 64, G01C 902

Patent

active

049021303

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.

REFERENCES:
patent: 4118109 (1978-10-01), Crawford et al.
patent: 4616226 (1986-10-01), Morley

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