Electrical-control liquid crystal plane diffractive micromirror and manufacturing method thereof

Abstract

The invention discloses an electrical-control liquid crystal plane diffractive micromirror, comprising a first substrate, a first pattern electrode conductor layer, a first insulating layer, a first pattern electrode, a first liquid crystal alignment layer, a liquid crystal layer, a second liquid crystal alignment layer, a second pattern electrode, a second insulating layer, a second pattern electrode conductor layer and a second substrate; each of the first pattern electrode and the second pattern electrode comprises multiple electric-driven loop electrodes which are of the same shape and areunclosed rings; the first pattern electrode conductor layer is provided with a plurality of through holes, and the number of the though holes is the same with that of total terminals of the electric-driven loop electrodes. The electrical-control liquid crystal plane diffractive micromirror solves the technical problem of loss of incident light of the existing diffractive micromirror, and also solves the technical problem about bad influence to thermophysical property of liquid crystal material due to the driving way based on frequency signals.

Description

technical field [0001] The invention belongs to the technical field of optical lenses, and more specifically relates to an electronically controlled liquid crystal plane diffraction micromirror and a preparation method thereof. Background technique [0002] Nowadays, diffractive micromirrors have been widely used. Among them, liquid crystal diffractive micromirrors, as a new type of diffractive light control device, are usually composed of multiple diffractive phase units with the same or similar basic shape, characteristic structure and size. A typical diffractive phase unit includes a sheet-like micro-nano electrode and a liquid crystal interlayer. The control electrode of the liquid crystal diffraction micromirror presents a patterned feature, and a basic pattern segment corresponds to a sheet-shaped micro-nano electrode of the diffraction phase unit. [0003] Usually, it is necessary to fabricate the boundary anchor mode of the liquid crystal film on the control electro...

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides an electronically controlled liquid crystal plane diffraction micromirror and a preparation method thereof, the purpose of which is to solve the technical problem of transmission light loss in the existing liquid crystal diffraction It is a technical problem based on the frequency signal driving that will adversely affect the thermal properties of the liquid crystal material, and the technical problem that the intermittent linear groove will significantly reduce the shaping, transformation or control efficiency of the infrared beam, and has high beam control efficiency , wide spectral range, good optical field adaptability, and easy coupling with other optical, optoelectronic and mechanical structures

Images