Optical system with telescope and microscope functions

Abstract

The invention discloses an optical system with telescope and microscope functions. The optical system sequentially comprises a telescope objective group, an inverted image lens group and an eyepiece group, wherein the telescope objective group sequentially comprises a first concave lens and a first convex lens; the first concave lens and the first convex lens are clung to each other; the inverted image lens group comprises two second concave lenses and one second convex lens; the second convex lens is located between the two second concave lenses; the eyepiece group sequentially comprises a third convex lens, a fourth convex lens and a fourth concave lens; the fourth convex lens and the fourth concave lens are clung to each other; main optical axes of all the lenses are located on one straight line. According to the optical system disclosed by the invention, air isolation between the telescope objective group and the inverted image lens group is changed under the condition that an additional lens or lens group is not increased, and switching of telescope and microscope (amplification) functions can be realized; the optical system is convenient to operate and is simple and feasible.

Description

technical field [0001] The invention belongs to the field of optical technology, and more specifically relates to an optical system with telescopic and microscopic functions. Background technique [0002] The telescope is a commonly used optical instrument for observing distant objects. Its magnification is an important performance. If the magnification is too small, the observation distance is not far enough, and the magnification is too large. Cause eye fatigue and dizziness in the observer. In observation systems, the main factors that determine the technical characteristics of an instrument are its functionality and the nature of the tasks to be solved. In the telephoto system, the angular field of view of the object space determines the time to search for the target, the magnification of the instrument determines the visible distance, and the diameter of the entrance pupil and the aberration correction of the optical system affect the resolution. The microscope uses a...

AI Technical Summary

Problems solved by technology

A telescope and a microscope are two different instruments, and there is no instrument that can be used as a telescope or as a microscope in the prior art

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