Four-hole difference image moving atmosphere optical parameter measurement instrument

This invention discloses one four-hole difference image move atmosphere optical parameters measurement device, which comprises four hole iris board, Schmitt and Cassegrain telescope, optical imaging lens, five-angle prism, four prism tamper, plane CCD sensor, image collection card and computer, wherein, the sensor is on focus plane of the lens; due to the split function, the sensor can get four images of same one aim to form rectangle form; base line has six match type to measure atmosphere relative length to get gas 1w samples.