Abstract
The temperature difference between indoor and outdoor could cause the formation of droplet on lens. A kind of new fog-proof technology is presented in this paper. Hydrophilic structures are patterned on the surface of lens by means of direct laser interference lithography. The contact angle (CA) and the morphology of the structure are observed under CA meter and optical microscope respectively. The results show that with the power of 49.1W, the incident angle of 9°, and the exposure times of 2, the structure with period of 30.7μm could be produced on the surface. What’s more, the CA meter shows that the produced structure could change the CA from 78° which is intrinsic to 58°.
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