The analysis for the effect of oil molecular contamination on optical system

Some optical load on the spacecraft suffer from the space pollution easily, eventually, the whole system may not work properly. The paper is based on the above-mentioned problem, using the common space oil molecular as the material of the contamination to conduct the experimental study, and draw the conclusions about oil molecular contamination effects on the system optical transmittance accordingly. According to the experimental results can be found that thin film interference will occur in the surface of oil molecular contamination. Transmittance of the entire system would have been affected. Then the paper conducted a correlation analysis demonstrated of the thin film interference situation of oil molecular. According to the results of this study, when the maximum detection wavelength of an optical transmission of the test piece is known, at this time they can be introduced the mass of the oil film contamination.