Method for manufacturing optical flat plate with beam converging function

Abstract

The invention relates to a method for manufacturing an optical flat plate with beam converging function. In the prior art, a solid lens has large volume and cannot realize super resolution, and meanwhile a liquid lens has high liquidity, has no fixed shape and needs encapsulation for use. The method comprises the following steps of: preparing a scattering plate with multi-stage scattering based on the beam focusing principle of a multi-stage scattering layer, then constructing an incident beam wave front phase optimization system, obtaining incident beam optimized wave front phase distribution required by focusing of the multi-stage scattering layer by using a beam wave front phase optimization method focused by the multi-stage scattering layer, preparing a phase plate with the incident beam optimized wave front phase distribution by using a photo-etching method, and finally sticking the phase plate and the scattering plate together by using optical cement to obtain the optical flat plate with beam converging function. The manufacturing method is simple; and the manufactured focusing component has the characteristics of small device volume, light weight, high integration, remarkable focusing effect and the like.

Description

technical field [0001] The invention belongs to the field of optical technology, and relates to a method for manufacturing an optical flat plate, in particular to a method for manufacturing an optical flat plate with a converging function. It is mainly used in optical information storage, optical microscopy, lithography, super-resolution and other fields. technical background [0002] Devices with beam converging function widely exist in existing optical systems, are the basis of optical imaging technology, and play an irreplaceable role in existing optical technology. For example, in an optical information storage system, the light beam needs to be focused on the optical storage material, and a certain optical characteristic of it is changed, and the change of the optical characteristic is distinguished to realize the existence of information. Here, it is necessary to focus the light beam on the optical storage material. Devices with beam converging function are usually fo...

AI Technical Summary

Problems solved by technology

Convex lenses are widely used in the prior art to achieve beam convergence. Due to the inability to achieve super-resolution and large geometric dimensions, they cannot be used in highly integrated optical systems.

With the development of optical technology, scientists have recently developed a liquid lens, which can realize the beam convergence function, and then can be applied to the optical imaging system. , authorized notification number CN100430774C, although the liquid lens has the characteristics of adjustable focus, but because the liquid has good fluidity and no fixed shape, it needs to be packaged and used, and the sealing of the package is high, and the use method is complicated, which essentially limits The use and promotion of liquid lenses are not suitable for highly integrated optical systems

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