CN211878309U

CN211878309U - Tactical target observation mirror optical system with reticle ranging function

Info

Publication number: CN211878309U
Application number: CN202020739360.4U
Authority: CN
Inventors: 杨自华
Original assignee: Kunming Ruishi Optical Instrument Manufacturing Co ltd
Current assignee: Kunming Ruishi Optical Instrument Manufacturing Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-11-06
Anticipated expiration: 2030-05-08

Abstract

The invention provides a tactical target observation mirror optical system with a reticle distance measurement, which is characterized in that: the objective lens focusing lens is a meniscus lens, the focal plane of the objective lens coincides with the first focal plane of the variable power eyepiece, the dense distance measuring reticle is arranged at the position of coincidence, the variable power lens I is a biconvex lens, the variable power lens II is a biconcave lens, the variable power lens II is a biconvex lens, the variable power lens II is a biconcave lens, the convex surface of the variable power lens III faces the pupil, the convex surface of the first lens faces the pupil, the second lens is a biconvex cemented lens, and the convex surface of the third lens faces the object, the focal plane of the objective lens coincides with the first focal plane of the variable power eyepiece, and the reticle is arranged at the position of coincidence, the reticle can be used for accurately measuring the distance of the observed target in the whole zooming process.

Description

Tactical target observation mirror optical system with reticle ranging function

Technical Field

The invention belongs to the technical field of optical instruments, and particularly relates to a tactical target observation mirror optical system with a reticle ranging function.

Background

The sighting target mirror is an optical instrument for performing remote observation, most of the conventional sighting target mirrors in the market only have a telescope function, and particularly in the military field, aiming at sighting target weapons used by observers, although high-magnification observation aiming at sighting target is realized, the sighting target weapons can assist snipers in calibrating and correcting the gun trajectory, but the sighting target mirror lacks a graduated reticle, so that the distance of the target cannot be measured. Especially in the case of aiming at a target at a long distance, the inability to measure the distance of the target will cause a great deviation in the aiming accuracy.

Different manufacturers are always researching the distance measurement function of the sighting target mirror, but due to the characteristics of the reticle, many sighting target mirrors with the distance measurement function have various defects, and the biggest problem is that the requirement of accurate distance measurement in the whole zooming process cannot be met.

Disclosure of Invention

The invention aims to provide a tactical sighting telescope optical system with a reticle full-magnification ranging function, which enables a focal plane of an objective lens and a first focal plane of a zoom eyepiece to be mutually overlapped through a unique optical system design, and a reticle is arranged at the overlapped position, so that the sighting telescope has an accurate ranging function in the whole zooming process.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a take tactics sighting target mirror optical system of graticule range finding, includes the first lens of objective, objective second lens, objective focusing lens, its characterized in that: the objective lens focusing lens is a meniscus lens, the right side surface of the Porro prism I and the left side surface of the Porro prism II are parallel to each other to realize the refraction effect of an optical path, the dividing plate is arranged at the position where the focal plane of the objective lens and the first focal plane of the ocular lens coincide with each other, the compensating first lens is a biconvex type lens, the compensating second lens is a cemented lens, the convex surface of the compensating second lens faces the object space, the variable power lens I is a biconvex type lens, the variable power lens II is a biconcave type lens, the convex surface of variable power lens III is towards the pupil, and the convex surface of eyepiece first lens is towards the pupil, and eyepiece second lens is biconvex type cemented lens, and the convex surface of eyepiece third lens is towards the object space.

As a further improvement of the invention, the first lens and the second lens of the objective lens form an objective lens front group, the first compensation lens and the second compensation lens form a compensation lens group, the variable power lens I, the variable power lens II and the variable power lens III form a variable power lens group, and the first ocular lens, the second ocular lens and the third ocular lens form an ocular lens group.

As a further improvement of the invention, the objective focusing lens is in an inner focusing mode.

The working principle of the invention is mainly that the objective focusing lens adopts an internal focusing mode, the waterproof sealing performance of the objective focusing lens meets 8-level waterproof performance, the objective focusing lens in the prior art mainly adjusts the focal length in a mode of adjusting a prism, an adjusting mechanism is complex, the adjusting difficulty is high, the operation is inconvenient and the sealing performance is poor, the objective focusing lens is only adjusted during focusing, so that the mechanical structure of the whole objective focusing lens is greatly simplified, in the adjusting process, only the objective focusing lens horizontally moves left and right along the optical axis, the optical axis of the whole objective focusing lens is not changed in the focusing and zooming process, the whole objective focusing lens reaches higher brightness, and the object image is clear; have only a focal plane of ordinary sight glass zoom eyepiece again, set up the reticle on this focal plane and can only realize the range finding function under specific multiplying power, this application adopts unique light path design, and the zoom eyepiece has two focal planes, with the coincidence of objective focal plane and the first focal plane of zoom eyepiece, at reticle of coincident position installation, can realize carrying out the function of accurate range finding at whole zoom in-process.

The beneficial effects of the invention are concentrated and expressed as follows:

1) because the focal plane of the objective lens is superposed with the first focal plane of the zoom eyepiece and a reticle is arranged at the superposed position, the accurate distance measurement in the whole zoom process is realized, and the full-magnification distance measurement is met;

2) the objective lens focusing lens adopts an internal focusing mode, so that the structure of the target lens is simplified, the waterproof sealing performance of the target lens is improved, and the reliability is excellent;

3) the field of view of the existing target observation mirror is only 40-60 degrees, and the field of view of the present application can reach a maximum 72-degree field angle.

Drawings

Fig. 1 is a light path diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a take tactics sighting target mirror optical system of graticule range finding, includes objective first lens 1, objective second lens 2, objective focusing lens 3, its characterized in that: an objective lens first lens 1, an objective lens second lens 2, an objective lens focusing lens 3, a Paul prism I6, a Paul prism II 4, a reticle 5, a compensation first lens 8, a compensation second lens 9, a zoom lens I10, a zoom lens II 7, a zoom lens III 11, an ocular lens first lens 12, an ocular lens second lens 13 and an ocular lens third lens 14 are arranged along an optical path in sequence, the objective lens first lens 1 is a biconvex cemented lens, the convex surface of the objective lens second lens 2 faces an object space, the objective lens focusing lens 3 is a meniscus lens, the right side surface of the Paul prism I6 and the left side surface of the Paul prism II 4 are parallel to each other to realize the refraction effect of the optical path, the reticle 5 is arranged at the position where the focal plane of the objective lens and the first focal plane of the ocular lens coincide with each other, the compensation first lens 8 is a doublet lens, the compensation second lens 9 is a cemented lens, and the convex surface of the compensation second lens 9 faces the object space, the variable power lens I10 is a biconvex lens, the variable power lens II 7 is a biconcave lens, the convex surface of the variable power lens III 11 faces the pupil, the convex surface of the ocular first lens 12 faces the pupil, the ocular second lens 13 is a biconvex cemented lens, and the convex surface of the ocular third lens 14 faces the object space.

Further, the first lens 1 and the second lens 2 of the objective lens form an objective lens front group, the first compensating lens 8 and the second compensating lens 9 form a compensating lens group, the variable power lens I10, the variable power lens II 7 and the variable power lens III 11 form a variable power lens group, and the first eyepiece lens 12, the second eyepiece lens 12 and the third eyepiece lens 13 form an eyepiece lens group.

Further, the objective lens focusing lens 3 is in an inner focusing mode.

The working principle of the invention is mainly that the objective focusing lens adopts an internal focusing mode, the waterproof sealing performance of the objective focusing lens meets 8-level waterproof performance, the objective focusing lens in the prior art mainly focuses targets with different distances in a prism adjusting mode, an adjusting mechanism is complex, the adjusting difficulty is high, the operation is inconvenient and the sealing performance is poor, the objective focusing lens is only adjusted during focusing, so that the mechanical structure of the whole objective focusing lens is greatly simplified, only the objective focusing lens horizontally moves left and right in the adjusting process, the optical axis of the whole objective focusing lens is not changed in the focusing and zooming process, and the whole objective focusing lens reaches higher brightness and has clear physical phases; have only a focal plane of ordinary target observation mirror zoom eyepiece again, set up the reticle on this focal plane and can only be under specific multiplying power, for example high power, perhaps low power can realize the range finding function, this application adopts unique light path design, and the zoom eyepiece has two focal planes, with the coincidence of objective focal plane and the first focal plane of zoom eyepiece, has installed the reticle in coincident position department, can realize carrying out the function of accurate range finding at whole zoom in-process.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take tactics sighting target mirror optical system of graticule range finding, includes the first lens of objective, objective second lens, objective focusing lens, its characterized in that: the first objective lens, the second objective lens, the focusing lens, the Paul prism I, the Paul prism II, the reticle, the first compensation lens, the second compensation lens, the variable power lens I, the variable power lens II, the variable power lens III, the first eyepiece lens, the second eyepiece lens and the third eyepiece lens are arranged along the optical path in sequence, the first objective lens is a biconvex cemented lens, the convex surface of the second objective lens faces the object space, the focusing lens is a meniscus lens, the right side surface of the Paul prism I and the left side surface of the Paul prism II are parallel to each other to realize the refraction effect of the optical path, the focal plane of the objective lens and the first focal plane of the variable power eyepiece lens are mutually overlapped, the reticle is arranged at the position of the overlapping position, the first compensation lens is a biconvex lens, the second compensation lens is a convex cemented lens, the convex surface of the second compensation lens faces the object space, the first variable power lens is a biconvex lens, and the second variable power lens is a biconcave lens, the convex surface of variable power lens III is towards the pupil, and the convex surface of eyepiece first lens is towards the pupil, and eyepiece second lens is biconvex type cemented lens, and the convex surface of eyepiece third lens is towards the object space.

2. The tactical borescope optical system of claim 1, wherein: the first lens and the second lens of the objective lens form an objective lens front group, the first lens and the second lens of the compensation lens form a compensation lens group, the zoom lens I, the zoom lens II and the zoom lens III form a zoom lens group, and the first lens, the second lens and the third lens of the eyepiece lens form an eyepiece lens group.

3. The tactical borescope optical system of claim 1, wherein: the objective lens focusing lens is in an inner focusing mode.