A miniaturized ultra-short-focus visual imaging method

Abstract

The invention relates to a miniaturized ultra-short-focus visual imaging method, and the realization steps are as follows: an imaging lens, a lens base, and an imaging sensor are assembled into an imaging sub-lens, which is repeatedly combined into a plurality of imaging sub-lenses; the optical structure layout; according to the imaging distance Adjust multiple imaging sub-lenses, perform imaging experiments, adjust the attitude of the lighting source; set the sub-lens imaging working mode, and select whether the sub-lens performs imaging according to the working distance and overlapping area range. When the working distance is relatively short, select More or all imaging sub-lenses are used for imaging. When the working distance is longer, fewer sub-lenses are selected for imaging to ensure that there is an overlapping area for subsequent image stitching; for on-site inspection.

Description

technical field [0001] The invention relates to the technical fields of ultra-precision machining and industrial measurement, in particular to a miniaturized ultra-short-focus visual imaging method. Background technique [0002] Under the development trend of intelligent manufacturing, visual inspection equipment needs to be installed on the existing system, but the exquisite design of the existing system presents difficulties such as small space and short working distance for the installation of visual inspection. Object feature detection in narrow spaces where people's sight is difficult to reach has urgent application requirements in equipment detection, cave detection, industrial production detection and other fields. However, due to the large size of most measurement equipment, there are few miniaturized, ultra-short-focus vision devices suitable for measurement in narrow spaces. [0003] In recent years, the use of visual imaging to detect object feature information h...

AI Technical Summary

Problems solved by technology

However, due to the large size of most measurement equipment, there are few miniaturized, ultra-short-focus vision devices suitable for measurements in narrow spaces

[0003] In recent years, the use of visual imaging to detect object feature information has become a research hotspot, but the difficulty is that it is difficult to find an accurate reference plane in a narrow space or in an irregular container or to narrow the volume of the measured object to adapt to the actual measurement conditions.

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