Ultralow distortion nearly-hemispherical viewing field antistatic adsorption optical system

Abstract

The invention relates to an ultralow distortion nearly-hemispherical viewing field antistatic adsorption optical system. The optical system comprises a first negative lens, a second negative lens, a first positive lens, a diaphragm, a second positive lens and a third negative lens which are arranged on the same optical path sequentially. The ultralow distortion nearly-hemispherical viewing field antistatic adsorption optical system has a wide adaptation range and a nearly-hemispherical viewing field, is favorable for correcting system aberration, has lower f-theta distortion and more uniform illuminance of an image plane, can effectively reduce static adsorption dust and does not have vignetting.

Description

technical field [0001] The invention belongs to the field of optoelectronic technology, and relates to an ultra-low distortion near-hemispheric field of view anti-static adsorption optical system, in particular to an ultra-low distortion near-hemispheric field of view anti-static adsorption optical system suitable for space environment and used in aerospace detection systems . Background technique [0002] At present, in the field of aerospace, especially in lunar exploration, an optical system with an ultra-low distortion near-hemispheric field of view is required in the aerospace detection system. Due to the harsh requirements of the working environment, the accuracy and quality of the optical system are limited. The requirements are very high, the technical difficulty of design is quite large, and there is no such optical system in China. At the same time, due to static electricity, some dust or other particles often adhere to the front of the lens of the ordinary optica...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of aerospace, especially in lunar exploration, an optical system with an ultra-low distortion near-hemispherical field of view is required in the aerospace space detection system. Due to the harsh requirements of the working environment, the accuracy and quality of the optical system The requirements are very high, the technical difficulty of the design is quite large, and there is no such optical system in China

At the same time, due to the electrostatic effect, some dust or other particles tend to adhere to the front of the lens of the ordinary optical system, which has a great impact on the imaging of the optical system, and may cause damage to the optical system, so it is very effective. It is necessary to develop a light, miniaturized, high-quality ultra-low distortion near-hemispherical field of view optical system, so that it can be used in aerospace detection systems

Images