Endoscope optical system

Abstract

The present application provides an endoscope optical system. The system includes an objective lens optical component, a rod lens optical component and an eyepiece optical component; the objective lens optical component includes a first group of lenses, a second group of lenses, and a third group of lenses arranged in sequence, and the third group of lenses include a first achromatic lens, a second achromatic lens and a third achromatic lens; and the eyepiece optical component includes a first negative lens, a first positive lens and a balsaming lens. Because the first achromatic lens and thethird achromatic lens have the function of eliminating chromatic aberration, and at least one second achromatic lens (an ultra-low dispersing lens) is arranged between the first achromatic lens and the third achromatic lens, the effect of eliminating the chromatic aberration is greatly improved; and in addition, the first negative lens and the first positive lens respectively for diverging and converging light beams are arranged at the front end of the balsaming lens, so that distortion can be effectively eliminated, and the balsaming lens can reduce the chromatic aberration of the light beams. The endoscope optical system provided by the present application can eliminate the distortion and the chromatic aberration, and obtain ultra-high definition imaging.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to an endoscope optical system. Background technique [0002] Endoscope is a detection instrument that integrates optics, electronics, software and other technologies. It enters through the natural orifice or minimally invasive opening of the human body and reaches the lesion to be inspected, so as to monitor the lesion in real time and dynamically. , Accurate imaging effect is very important. [0003] With the continuous development of modern medicine, higher and higher requirements are put forward for clinical imaging effects. However, due to the large imaging chromatic aberration in the existing endoscope optical system, there is a large aberration in the optical image source. The resolution of the final imaging is low, and it is difficult to meet higher demands. Contents of the invention [0004] The present application provides an endoscope optical system capable of eliminati...

AI Technical Summary

Problems solved by technology

[0003] With the continuous development of modern medicine, higher and higher requirements are put forward for clinical imaging effects. However, due to the large imaging chromatic aberration in the existing endoscope optical system, there is a large aberration in the optical image source. The resolution of the final imaging is low, making it difficult to meet higher demands

Images