Liquid lens and using method thereof and optical system

Abstract

The invention provides a liquid lens and a using method thereof and an optical system. The liquid lens comprises an annular first electrode, a second electrode, a first cover plate, a liquid storage cavity at least formed by a first electrode, a second electrode and the first cover plate, an optical liquid stored in the liquid storage cavity, and a flow control device arranged on the side wall of the liquid storage cavity and communicated with the liquid storage cavity to control the proportion of a conductive liquid to a non-conductive liquid. According to the liquid lens and the using method thereof and the optical system, the liquid storage cavity is formed on the basis of the containing area defined by the annular first electrode, the flow control device is designed on the side portion of the liquid storage cavity, and the proportion of the conductive liquid to the non-conductive liquid in the liquid storage cavity can be changed through the flow control device; and the liquid lens is simple in structure, high in imaging quality, adjustable in magnification and convenient to integrate, and can be widely applied to optical focusing and zooming systems.

Description

technical field [0001] The invention belongs to the field of optical devices, and in particular relates to a liquid lens, a using method thereof and an optical system based thereon. Background technique [0002] Optics are key imaging components in many electronic devices such as mobile phones, cameras, 2D barcode scanners, and machine vision applications. At present, the optical zoom system in consumer electronics products such as mobile phones on the market mainly uses mechanical devices such as motors and gears to adjust the relative positions of multiple lenses to achieve zooming. Due to the existence of mechanical components, such lenses are often difficult to miniaturize , slow zoom speed, expensive, short life, poor robustness and other shortcomings. [0003] The liquid lens based on the principle of electrowetting is based on one or two liquids, and the purpose of zooming is achieved by changing the curvature of the liquid surface. The traditional solid lens zoom s...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to propose a liquid lens and its use method and an optical system to solve the problems in the prior art that the adjustable magnification of the liquid lens is difficult to effectively realize and the structure is not compact.

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