RU2226252C2 - Small arms optical sighting complex - Google Patents

Abstract

FIELD: sighting devices ; optical sights in particular. SUBSTANCE: small arms optical sighting complex is provided with detachable attachment consisting of lower and upper parts. Upper part secured before objective on telescopic tube body coaxially relative to it includes protective glass with AP-90 prism boded to it. Lower part mounted for projection of image of front sight on sight reticule includes long-focal length lens, two optical adjusting wedges, Dove prism and AP-0 prism with cap. EFFECT: enhanced accuracy of firing. 2 dwg

Description

The invention relates to the field of weapons, and more specifically to the design of the sight and can be used to increase the effectiveness of the combat use of small arms.

Known optical sights of small arms, serving to aim when firing at targets at various distances.

As a prototype, the PSO-1 optical sight to the Dragunov sniper rifle was selected, which makes it possible to aim at ranges up to 1300 m. Such a sight consists of mechanical and optical parts. The mechanical part includes a mechanism of aiming angles; lateral correction mechanism; mechanism for mounting the sight on the weapon.

The optical part is a telescopic tube with a lens turning system. A grid with a screen (1) is placed in the focal plane of the lens.

The experience of using automatic small arms with optical sights shows that during intensive shooting there is a mismatch between the aiming and firing lines. This is explained by the thermal bending of the trunk resulting from the heterogeneity of the temperature field of the walls due to the action of various factors (free convection, forced convection, precipitation and difference). According to the results of experimental studies, the maximum deviation of the mid-point of impact (STP) when exposed to external factors and difference is up to 16 thousand range.

The PSO-1 optical sight, which is in service, does not provide for the introduction of an amendment to change the initial projection angles of a bullet resulting from thermal bending of the barrel, which leads to a significant consumption of ammunition and loss of manpower in our units.

The objective is to eliminate these shortcomings by introducing amendments to the scope, which will increase the accuracy of shooting from small arms.

This problem is solved in such a way that a detachable optical nozzle is mounted on the well-known PSO-1 sight (Fig. 1) having a telescopic tube with a lens, a lens wrapping system, a reticle, an eyepiece and alignment mechanisms on the body of the telescopic tube and coaxially with it , in the lower part of which a telephoto lens (1) is fixed, two optical alignment wedges (2), a Dove prism (3), a prism with a roof AP-0 (4). The upper part of the nozzle contains a protective glass (5) with an AP-90 prism glued on it (6). This design allows you to project the image of the front sight (7) on the reticle of the sight (8), thereby the shooter sees the bend of the barrel during firing and adjusts aiming, which allows to increase the accuracy of shooting.

Device operation

The barrel during shooting bends at angles Yx horizontally and Yy vertically. Due to the fact that the front sight is located at the muzzle end, it performs the same amount of movement as the muzzle end of the trunk. Therefore, by projecting the image of the front sight on the reticle of the sight and having this projection with the reticle, we will achieve complete exclusion of the influence of thermal bending of the barrel on accuracy. Adjustment before firing the proposed complex is carried out in the same way as PSO-1. Then, by rotating the telephoto lens (1) (Fig. 1), we achieve a clear image of the front sight (7) on the reticle (8) of the sight, using optical wedges (2) we combine the image of the front sight with the central mark of the reticle.

During firing, the image of the fly is shifted from its original position, as shown in figure 2. The shooter, aiming not at the mark, but at the image of the front sight, introduces an amendment to the shooting, thereby eliminating the mismatch between the axis of the sight and the barrel channel.

Literature

1. Manual on the shooting case for the 7.62 mm SVD Dragunov sniper rifle, ed. 2nd supplemented. - M .: Military Publishing House, 1967, p. 39-48.

Claims (1)

A sighting shooting optical complex comprising a telescopic tube with a lens, a lens wrapping system, a reticle, an eyepiece and alignment mechanisms, characterized in that it is equipped with a removable optical nozzle including the lower and upper parts, the latter being fixed in front of the lens on the body of the telescopic tube coaxially with it contains a protective glass with the AP-90 prism glued onto it, and the lower part is installed with the possibility of projecting the image of the front sight on the reticle and contains a telephoto lens tiv, two optical quotation wedges, a Dove prism and a prism with a roof AR-0.

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