Optimization method and structure of Galileo telescope

Abstract

The invention discloses an optimization method and structure of a Galileo telescope. The method is based on ZEMAX software, and the process mainly comprises the steps of optimizing the curvature radius of a mirror surface, optimizing the thickness of a lens and optimizing a glass material. The structure mainly comprises a lens cone, an objective lens group and an eyepiece group, wherein the objective lens group and the eyepiece group are arranged in the lens cone; the length of the lens cone is 250 mm; the objective lens group is a doublet objective lens and comprises a first lens and a second lens; and the eyepiece group is a symmetrical eyepiece and comprises a third lens, a fourth lens, a fifth lens and a sixth lens. The optical system of the Galileo telescope is optimized through ZEMAX software, the optimization effect is simulated, whether the optical system needs to be re-optimized or not can be further determined according to the effect shown by simulation, the Galileo telescope system designed through the method can effectively eliminate the defects of white light and the like, and the imaging quality of the image is improved.

Description

technical field [0001] The invention relates to an optical field, in particular to an optimization method and a structure of a Galilean telescope. Background technique [0002] The characteristic of Galilean telescope is that its objective lens is a convergent lens and its eyepiece is a telescope with a divergent lens; most of the current Galilean telescopes have the problem of "false color", that is, the observed "white light" is not white light, but by It is formed by mixing visible light. The reason is that the refraction degrees of various colored lights are different after passing through the lens, so the focus of the imaging is also different, resulting in blurred imaging. In addition, the spherical aberration, aberration and distortion of the lens system itself make the imaging quality worse. Not ideal. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides a Galilean telescope optimization method a...

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Problems solved by technology

[0002] The characteristic of Galilean telescope is that its objective lens is a convergent lens and its eyepiece is a telescope with a divergent lens; most of the current Galilean telescopes have the problem of "false color", that is, the observed "white light" is not white light, but by It is formed by mixing visible light. The reason is that the refraction degrees of various colored lights are different after passing through the lens, so the focus of the imaging is also different, resulting in blurred imaging. In addition, the spherical aberration, aberration and distortion of the lens system itself make the imaging quality worse. not ideal

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