Image segmentation device for astronomical optical fiber aiming

Abstract

The invention relates to the technical field of astronomical optical fiber aiming, and in particular relates to an image segmentation device for astronomical optical fiber aiming. The device comprisesa special-shaped micro-lens array and an optical fiber bundle. The special-shaped micro-lens array is composed of a central circular flat plate and a plurality of fan-shaped micro-lenses around the central circular flat plate. According to the invention, the special-shaped micro-lens array with the circular flat plate structure at the center and a plurality of fan-shaped micro-lenses at the periphery is adopted, 100% coverage of light field energy is realized without changing the incident light focal ratio of the scientific main optical fiber, i.e., light deviating from the scientific main optical fiber is coupled into the side optical fiber by the fan-shaped micro-lenses, and a detection blind area does not exist.

Description

technical field [0001] The invention relates to the technical field of astronomical optical fiber aiming, in particular to an image splitting device for astronomical optical fiber aiming. Background technique [0002] The acquisition and analysis of astronomical spectra is an important means of studying celestial bodies in astronomy. Using the spectra of celestial bodies, astronomers can obtain characteristic parameters such as the chemical composition of celestial bodies, celestial body density, pressure, temperature, magnetic field and movement speed, which are of great significance for human beings to explore space, understand unknown celestial bodies, and find new homes suitable for human habitation. [0003] Since the optical fiber was first applied to the optical signal transmission network of the telescope in 1981, it has caused revolutionary development in the field of astronomical observation technology because of its long-distance transmission of light, flexibility...

AI Technical Summary

Problems solved by technology

However, this positioning method requires multiple position iterations. It cannot be observed while positioning, and it cannot monitor the relative position of the image spot and the fiber core in real time. The tracking accuracy cannot be guaranteed, and the observation efficiency is low.

The embedded multi-core optical fiber sight and positioning device described in Chinese patent CN104898214A uses multi-core optical fiber to perform real-time monitoring and optical fiber aiming of the relative position of the light spot and the core of the scientific main optical fiber. The efficiency is not high, and when the image spot falls between the scientific main fiber and the side fiber, the signal response cannot be detected, and there is a detection blind zone

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