autocollimatorIt can be widely used in measurement units at all levels, research institutes and university laboratories, as well as measurement rooms and workshops in large mechanical processing plants, to measure the motion straightness and flatness of precision guides and precision plates of machine tools and instruments, and to determine the accuracy of angle values of angle instruments and tools.

autocollimatorAlso known asoptical flatness gaugeOptical selfcollimator.

ZY-1 type selfcollimatorBy adopting the structural principle of two-dimensional measurement, it is convenient to simultaneously measure angle values and straightness in both horizontal and vertical directions.
SincecollimatorIt is a compact, portable, easy-to-use, stable and reliable measuring instrument.

model	ZY-1 type	ZY-2 type
Focal length of objective lens	400mm	800mm
Objective lens aperture	φ40mm	φ80mm
Eyepiece magnification	20×	20×
_Small scale value	0.005/1000（≈1″）	0.005/1000（≈1″）
Measurement range>	1000 grids (≈ 1000 ″)	1000 grids (≈ 1000 ″)
Measurable rail length	6m	10m
Total weight of the instrument	7kg	15kg