Focal plane non-planar array hole equipartition manufacturing method based on optical fiber unit

Abstract

The disclosure provides a focal plane non-planar array hole equipartition manufacturing method based on an optical fiber unit. The method comprises the steps: arranging multiple non-planar array holes; calculating a coordinate value of each point on the plane; calculating a coordinate value of each point on the plane after projection on the curved surface through a variable focus projection method; comparing distances between adjacent points; calculating a maximum error of the distance between every two adjacent points of the non-planar array holes; and iteratively optimizing the error for multiple times to generate a three-dimensional coordinate of the central point of the non-planar array hole. The non-planar array hole sites with high position precision for installing the optical fiberpositioning units can be manufactured, the spectral energy receiving efficiency on the optical focal plane of the telescope can be improved after the optical fiber units are installed, and non-blind area scanning coverage of the optical fibers on the focal plane is realized.

Description

technical field [0001] The present disclosure relates to the field of astronomical telescopes, and in particular to a method for manufacturing a non-planar array hole equalization of a focal plate based on an optical fiber unit. Background technique [0002] Since the 1980s, there has been an upsurge in the manufacture of a new generation of large-scale telescopes in the world. Modern large-scale telescopes have become one of the symbols of the country's comprehensive national strength and technological progress. With the continuous introduction of various sky survey programs, the research of astronomical spectroscopic telescopes has become a hot spot. When observing different sky areas, the images (spots) of celestial bodies fall on different positions of the focal plane. In order to receive as many images of celestial bodies as possible Light energy, in addition to requiring the optical system of the telescope to have good performance, must also allow the incident end of e...

AI Technical Summary

Problems solved by technology

Although this method has the advantage of convenient adjustment, its structure is complicated, and each receiving end has an optical fiber dragged on the substrate, so its distribution density should not be too large. Considering its stability and error, it is generally only suitable for small fiber focal plane substrate

[0004] The two methods are introduced above. The number of optical fibers arranged on the focal plane substrate is 640 and 400 optical fibers respectively. The number of celestial objects observed each time is small and the efficiency is low.

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