CN109307936B

CN109307936B - Accelerate auxiliary device of astronomical director speed of aiming

Info

Publication number: CN109307936B
Application number: CN201811435254.0A
Authority: CN
Inventors: 张俊峰; 许志波; 刘峰; 顾东; 韩志刚; 向泽湖; 祝开奕
Original assignee: HUBEI HUAZHONG PHOTOELECTRIC SCIENCE AND TECHNOLOGY Ltd
Current assignee: Hubei Huazhong Changjiang Photoelectric Technology Co ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2020-11-20
Anticipated expiration: 2038-11-28
Also published as: CN109307936A

Abstract

The invention designs an auxiliary device for accelerating the aiming speed of an astronomical direction finder, which comprises an optical wedge combination of two same optical wedges, wherein the optical wedge combination is additionally arranged in front of an observing and aiming lens of the direction finder to generate different deviation angles, so that a target can simultaneously form four images. The two identical optical wedges are a first optical wedge and a second optical wedge, and are two semicircular optical wedges with the same wedge angle, and the first optical wedge and the second optical wedge are glued on the optical wedge seat. The auxiliary device for accelerating the aiming speed of the astronomical direction finder can quickly and accurately aim at the mass center of the celestial body by matching the optical wedge group with the observing and aiming system of the astronomical direction finder, and greatly improves the aiming speed.

Description

Accelerate auxiliary device of astronomical director speed of aiming

Technical Field

The invention belongs to the technical field of natural celestial body orientation, and particularly relates to an auxiliary device for accelerating the aiming speed of an astronomical direction finder.

Background

Fast orientation based on natural celestial bodies is a technology for determining the orientation of a ground target in a short time, and as part of modern surveying and mapping science, the technology has penetrated and well served various fields such as traffic, water conservancy buildings, pipelines and the like. Particularly in the military field, along with the rapid development of modern science and technology, the weapon intelligence level is continuously improved, supporting equipment capable of realizing rapid orientation is more and more important, and higher requirements are provided for the measurement speed and the accuracy.

Disclosure of Invention

The invention aims to solve the technical problem of providing an auxiliary device for accelerating the aiming speed of an astronomical direction finder, which improves the defects of slow direction finding speed and low direction finding accuracy of the traditional astronomical direction finder, can aim at the centroid of an astronomical body quickly and accurately and greatly improves the direction finding speed.

The technical scheme adopted by the invention for solving the technical problems is as follows: the device comprises two optical wedge combinations with the same optical wedge, wherein the optical wedge combinations are additionally arranged in front of a sighting mirror of the direction finder to generate different deviation angles, so that a target can simultaneously form four images. The center of the four images is found, so that the position of the mass center of the celestial body can be found, and quick orientation is realized.

According to the technical scheme, the two identical optical wedges are specifically a first optical wedge and a second optical wedge which are two semicircular optical wedges with the same wedge angle, and the first optical wedge and the second optical wedge are glued on the optical wedge seat. The optical wedge seat is arranged for installing the first optical wedge and the second optical wedge.

According to the technical scheme, the first optical wedge and the second optical wedge are placed at an angle of 90 degrees.

According to the technical scheme, the inclined planes of the first optical wedge and the second optical wedge are arranged oppositely.

According to the technical scheme, the first optical wedge and the second optical wedge are pairwise processed, and the angle difference between the first optical wedge and the second optical wedge is not more than 2'.

The invention has the following beneficial effects: (1) the astronomical direction finder with the auxiliary device has high direction precision which can reach +/-0.5'.

(2) The astronomical direction finder of the auxiliary device can enable the target to simultaneously form four images, can quickly determine the mass center of the celestial body and greatly improve the direction finding speed.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic perspective view of an auxiliary device for increasing the aiming speed of an astronomical direction finder according to an embodiment of the present invention;

FIG. 2 is a schematic view of the assembly of the auxiliary device in the embodiment of the present invention;

FIG. 3 is an astronomical direction finder observation system with an auxiliary device added in an embodiment of the present invention;

FIG. 4 is a reticle of an astronomical direction finder viewing system in an embodiment of the present invention;

FIG. 5 is a perspective view of a celestial body observed by an astronomical orientation system after the auxiliary device is added in the embodiment of the present invention;

FIG. 6 is a view of a celestial body observed by an observation system of an astronomical orientation unit after the auxiliary device is added in the embodiment of the present invention;

wherein: 1. a first optical wedge; 2. a light wedge seat; 3. a second optical wedge; 4. a filter; 5. an objective lens; 6. a rotating image prism; 7. a reticle; 8. an eyepiece; 9. horizontal division lines of the reticle; 10. vertical dividing lines of the dividing plate; 11. a cross division line 12 of a reticle, four images of a large target observed by an observing and aiming system of an astronomical director; 13. the observation system of the astronomical orientation device observes four images of a small target.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the embodiment of the invention, as shown in fig. 1, 2 and 3, the auxiliary device for accelerating the aiming speed of the astronomical direction finder mainly comprises a first optical wedge 1, an optical wedge base 2 and a second optical wedge 3, which are additionally arranged in front of the aiming system of the astronomical direction finder.

The first optical wedge 1 and the second optical wedge 3 are two semicircular optical wedges with the same wedge angle, and the first optical wedge and the second optical wedge are placed at 90 degrees, so that a target can form four images at the same time.

Further, the inclined surfaces of the first optical wedge and the second optical wedge are placed opposite to each other, and the first optical wedge and the second optical wedge are glued on the optical wedge base 2 as shown in fig. 2. The position of the four images in the reticle can be fine-tuned by rotating the wedge holder so that they are symmetrical with respect to the reticle's horizontal scribe line 9 and the reticle's vertical scribe line 10 on the reticle 7.

Furthermore, the first optical wedge and the second optical wedge are processed in pairwise matching mode, and the angle difference of the two matched optical wedges is not more than 2 'so as to ensure that the orientation precision can reach +/-0.5'.

In the embodiment of the invention, after the auxiliary device is additionally arranged, the astronomical finder observation mirror sees a near-earth celestial body (such as a large target in a short distance like the sun) as shown in fig. 4 and 5, the height and pitch of the astronomical finder observation mirror are adjusted, so that the horizontal division line 90 and the vertical division line 10 of the reticle respectively pass through eight intersection points formed by intersecting four images 12 formed by the large target, and the central point of the division line is the mass center of the large target.

Further, in the embodiment of the present invention, a remote celestial body (such as a small distant target like a fixed star) seen by the observation mirror of the astronomical direction finder of the present invention is additionally installed, as shown in fig. 6, the elevation and the like of the observation mirror of the astronomical direction finder are adjusted, so that the cross division line 11 respectively passes through four images 13 formed by the large target, and the center point of the division line is the centroid of the small target.

The auxiliary device has the advantages of simple structure, easy operation and high orientation precision, can quickly determine the mass center of the celestial body, and greatly improves the orientation speed.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. An auxiliary device for accelerating the aiming speed of an astronomical direction finder is characterized by comprising two optical wedge combinations with the same optical wedge, wherein the optical wedge combinations are additionally arranged in front of an observing and aiming lens of the direction finder to generate different deviation angles, so that a target can simultaneously form four images; the two identical optical wedges are specifically a first optical wedge and a second optical wedge, the two optical wedges are two semicircular optical wedges with the same wedge angle, and the first optical wedge and the second optical wedge are glued on an optical wedge seat.

2. The device as claimed in claim 1, wherein the first wedge is disposed at 90 ° to the second wedge.

3. The device as claimed in claim 1, wherein the first optical wedge is disposed opposite to the second optical wedge.

4. The device as claimed in claim 1, wherein the first optical wedge and the second optical wedge are paired and have an angle difference of no more than 2 ".