Tactical spotting scope optical system with reticle-based ranging function

Abstract

The invention provides a tactical spotting scope optical system with a reticle-based ranging function, which is characterized in that a first lens of an objective lens, a second lens of the objective lens, a focusing lens of the objective lens, a Porro prism I, a Porro prism II, a reticle, a first compensation lens, a second compensation lens, a zoom lens I, a zoom lens II, a zoom lens III, a first lens of an eyepiece, a second lens of the eyepiece and a third lens of the eyepiece are sequentially arranged along an optical path; the focusing lens of the objective lens is a meniscus lens, the focal plane of the objective lens coincides with a first focal plane of the zoom eyepiece, and the dense ranging reticle is arranged at the coincidence position; the zoom lens I is a biconvex lens, the zoom lens II is a biconcave lens, and the convex surface of the zoom lens III faces the pupil; and the convex surface of the first lens of the eyepiece faces the pupil, the second lens of the eyepiece is a biconvex cemented lens, and the convex surface of the third lens of the eyepiece faces the object space. The focal plane of the objective lens and the first focal plane of the zoom eyepiece coincide with each other, and the reticle is arranged at the coincidence position, so that accurate ranging can be performed on an observed target by using the reticle in the whole zooming process.

Description

technical field [0001] The invention relates to the technical field of optical instruments, specifically a tactical target sight optical system with a reticle for distance measurement. Background technique [0002] The target scope is an optical instrument used for long-distance observation. Most of the traditional target scopes on the market now only have the function of a telescope. Especially for the military field, the target scope weapon used by the observer, Although it achieves high-magnification observation and aiming at the target, it can assist the sniper to check and correct the trajectory of the gun, but the target scope lacks a reticle with a scale, so the distance to the target cannot be measured. Especially in the case of long-distance aiming at the target, the inability to measure the distance of the target will cause a great deviation in the aiming accuracy. [0003] Different manufacturers have been researching the ranging function of the target scope, but...

AI Technical Summary

Problems solved by technology

[0002] The target scope is an optical instrument used for long-distance observation. Most of the traditional target scopes on the market now only have the function of a telescope. Especially for the military field, the target scope weapon used by the observer, Although it achieves high-magnification observation and aiming at the target, it can assist the sniper to check and correct the trajectory of the gun, but the target scope lacks a reticle with a scale, so the distance to the target cannot be measured

Especially in the case of long-distance aiming at the target, the inability to measure the distance of the target will greatly deviate the aiming accuracy

[0003] Different manufacturers have been researching the ranging function of the target scope, but due to the characteristics of the reticle, many target scopes claiming to have the ranging function have various defects. The biggest problem is that they cannot meet the requirements during the entire zooming process. Requirements for accurate ranging