Liquid crystal lens

Abstract

A liquid crystal lens includes a first light-pervious plate, a second light-pervious plate, a first electrode layer arranged on the first light-pervious plate, a second electrode layer arranged on the second light-pervious plate, and a liquid crystal layer sandwiched between the first light-pervious plate and the second light-pervious plate, where the first electrode layer comprises a plurality of concentric electrodes, and a gap between two adjacent outer concentric electrodes is different from a gap between two adjacent inner concentric electrodes.

Description

technical field [0001] The present invention relates to liquid crystal lenses. Background technique [0002] Liquid crystal lens (liquid crystal lens) is a technology created by utilizing the unique physical and optical properties of liquid crystal materials. Unlike traditional glass lenses, liquid crystal lenses can focus or diverge incident light according to the electric field applied to them. In particular, the focal length of liquid crystal lenses can be adjusted by changing the supply voltage. Because liquid crystal lenses do not require the use of mechanical action to adjust focus, liquid crystal lenses are more suitable than traditional glass lenses for many image acquisition techniques. [0003] Please refer to Figure 1A , Figure 1A is a schematic diagram of a known liquid crystal lens structure 100 . The liquid crystal lens structure 100 includes two glass layers 110 and 120 , two Indium-Tin Oxide (ITO) electrode layers 112 and 122 respectively formed on the tw...

AI Technical Summary

Problems solved by technology

Although as Figure 2C The shape of the electric field intensity distribution inside the liquid crystal layer 230 shown is compared to Figure 1C The distribution shape of the electric field intensity in the liquid crystal layer 130 shown is good, but because multiple control voltages V1-V3 are required, the design of the liquid crystal lens structure 200 will be relatively complicated.

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