Study Of The Contact Angle Of Revolving Solid Interface In Liquid Lens

Electric actuated liquid lens is a novel imaging optical device, which hasadvantages such as fast zoom, small size, low energy consumption, have goodapplication prospect in areas such as medical, communication, industry. Thus a lot ofattention have attracted from the researchers.Contact angle is one of the determinants of the deformation of liquid, has greatimpact on the focal length and imaging quality of the liquid lens. This thesis mainlyinvestigates the contact angle of liquid lens with rotating curved solid interface andthe aberration of the liquid lens caused by the optical aperture. The results are of greatsignificance to optimizing the performance of liquid lens.Firstly,the current technical developmentof optical zooming system, electricaltunable-focus liquid lens, and the theory of electro-wetting has been reviewed;secondly, the wetting contact angle and electrowetting contact angle equation on fourtypes of revolving monotonic curved surface are deduced based on the minimumenergy principle with the influence of gravity considered; at last, the influence ofaperture on the spherical aberration of the liquid lens under different slope angle isanalyzed.