Liquid crystal condensation micromirror array driven and controlled on the basis of frequency signal, and preparation method thereof

Abstract

The invention discloses a liquid crystal condensation micromirror array driven and controlled on the basis of a frequency signal. A voltage signal is loaded on the liquid crystal condensation micromirror array, wherein the frequency of the voltage signal is adjustable, and the maximum mean square amplitude value of the voltage signal is only about few volts; and on the basis of a signal inductionand voltage amplification function between electric insulation micro-coils, specific intensity required by the micromirror array and a spatial distribution control electric field or magnetic field areconstructed to finish a condensation operation for driving and controlling the liquid crystal condensation micromirror array on the basis of the frequency signal. The liquid crystal condensation micromirror array has the advantages that the condensation efficiency of the liquid crystal condensation micromirror array is elaborately regulated, power consumption is low, and a frequency voltage regulation device and the liquid crystal condensation micromirror are integrated so as to be easily coupled with other functionally optical, photoelectric, light-emitting and electronics structures.

Description

technical field [0001] The invention belongs to the technical field of optical lenses, and more specifically relates to a liquid crystal concentrating micromirror array driven and controlled by a frequency signal and a preparation method thereof. Background technique [0002] For conventional electronically controlled liquid crystal concentrating micromirror arrays working in the visible or infrared spectrum, by loading a voltage signal of a specific frequency on the control electrodes in the micromirrors, an arrayed non-magnetic array is generated between the control electrodes at micrometer intervals. The uniform spatial electric field or magnetic field drives the liquid crystal material arranged between the control electrodes to produce a specific spatial distribution pattern in an array, so that the liquid crystal material presents a refractive index distribution mode with arrayed light-gathering performance. By directly modulating the mean square amplitude of the loaded...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a frequency signal-based liquid crystal concentrating micromirror array and its preparation method, the purpose of which is to solve the problem of existing conventional electronically controlled liquid crystal concentrating micromirror In the process of regulating its concentrating efficiency, because the loaded voltage signal changes in a wide range, the generation, modulation, fine control of the voltage signal, the effective coupling of the voltage signal and the liquid crystal concentrating micromirror array, power consumption, Liquid crystal concentrating micromirror arrays have high technical requirements such as effective heat dissipation, and voltage signal output devices have large dimensions, complex structures, high costs, and are difficult to be small / miniaturized, and difficult to integrate with liquid crystal concentrating micromirror arrays. Technical problems, and technical problems that easily lead to poor performance of liquid crystal concentrating micromirrors and small application range

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