Self-calibration type device for measuring parallelism of laser receiving and transmitting optical axis

The utility model discloses a device with a self-calibration function for measuring parallelism of a laser receiving and transmitting optical axis, comprising a simulation echo source, a two-dimension light beam directing scanning unit, a system self-checking optical path assembly, a receiving optical axis offset adjusting unit and a light beam supervision and data processing unit. The self-calibration type device of the utility model not only can satisfy measurement of a coaxial type or a co-optical-path type laser receiving and transmitting coaxiality, but also can perform measurement for the parallelisms of non coaxial optical axises of different offsets. The self-calibration type device of the utility model has the beneficial effects that: the device has the self-calibration function and can monitor states of the device at any time; and the device also has an optical axis offset adjusting function and can satisfy optical axis parallelism testing of the different offsets. Therefore, the device of the utility model is especially suitable for calibration and testing of a laser active photoelectric instrument.