FIELD: controlling and measuring equipment engineering, possible use for performing leveling operations in mechanical engineering.
SUBSTANCE: laser with collimator are positioned on axis of observation tube before its objective. Diameter of body does not exceed size of aperture of objective of pipe with relation of these dimensions no more than 1/4. collimator contains one flat-convex lens with spherical aberration. On optical axis of lens semiconductor laser is positioned. Laser is rigidly held with shift relatively to lens focus.
EFFECT: possible determining of horizontal position of controlled object with required precision.
2 cl, 3 dwg
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