| 摘要 |
FIELD: measuring technique. ^ SUBSTANCE: device comprises, connected in series, laser, light-splitting prism that deflects the beam at the right angle, reflecting plate for converting the beam into parallel beams that pass through the light-splitting prism, two-dimensional photodetector mounted perpendicular to the direction of propagation of the parallel beams and provided with two small-diameter openings for passing the light beams, and reflector mounted on the object. ^ EFFECT: simplified design. ^ 2 dwg |
