Achromatic light field camera system based on super-structure lens arrays and achromatic method

Abstract

The invention discloses an achromatic light field camera system based on super-structure lens arrays. The system includes a line polarizing plate, quarter wave plates, objective lenses, the achromaticsuper-structure lens arrays and a photoreceptor. The achromatic super-structure lens arrays are arranged in middles of two combinations of the line polarizing plate, the quarter wave plates and the objective lenses which are sequentially arranged. The photoreceptor forms a rear photosensitive plane to be used to receive an image. The achromatic super-structure lens arrays are two-dimensional optical devices formed by arranging super-structure lenses on planes. Four-dimensional parametric light field information including two dimensions of positions and two dimensions of directions at the sametime can be accurately recorded on the photodetector by using the achromatic super-structure lens arrays. A design of an achromatic light field camera of visible-light waveband is realized. The achromatic super-structure lens arrays are the two-dimensional optical devices formed by arranging the super-structure lenses on the planes. The four-dimensional parametric light field information including the two dimensions of the positions and the two dimensions of the directions at the same time can be accurately recorded on the photodetector by using the achromatic super-structure lens arrays.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to the design of an achromatic light field camera based on a meta-lens array and an achromatic method. Background technique [0002] Vision is the most important perception system in nature, and organisms can capture and process light field information in the environment through the visual system. Compared with the human eye, the insect compound eye system composed of multiple ommatidia has a larger field of view and higher spatial resolution. By simulating the compound eye structure, many optical vision systems with excellent performance can be designed, such as light field cameras. Compared with traditional cameras that can only record the intensity of two-dimensional planar light fields, light field cameras can capture four-dimensional parameter information including the direction and position of light propagation. Through optical design, the light from the ...

AI Technical Summary

Problems solved by technology

Therefore, traditional light field cameras cannot solve the problem of broadband achromatism, and the existing microlens arrays also limit the portability, light weight and high-precision imaging of light field camera equipment.

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