RU2736172C1 - Submarin universal periscope head device - Google Patents

Abstract

FIELD: vessels and other watercrafts.

SUBSTANCE: device of head part of universal periscope can be used in periscopes of submarines. Proposed device comprises housing, protective opening, gyroscopic line stabilization system, television camera with pancratic lens, remote controlled electric drive. In a television camera with a pancratic lens, one colour matrix with a replaceable red light filter is used to form a colour and black-and-white image. Moving components of the pancratic lens are moved by tracking drives according to signals of position sensors of the pancratic lens. Additional non-stabilized small-size surveillance television camera with a wide field of vision is installed in the head part.

EFFECT: technical result is high resolution and sensitivity of a television channel with a pancratic lens, reduced dimensions of the sight and improved operational characteristics of the universal periscope.

1 cl, 1 dwg

Description

The invention relates to optoelectronic surveillance systems used in submarine (PL) periscopes.

For a detailed assessment of the observed situation, periscopes use television cameras with switching lenses with different magnifications. In modern periscopes, television cameras with lenses with a continuously variable magnification factor (hereinafter referred to as pancratic lenses) are usually not used, although they have a number of advantages. Pancratic lenses provide an opportunity not to lose the object of observation when changing the magnification, in contrast to systems with lens switching [HIS Jant's C41SR & Mission Systems, Maritime, 2018-2019]. However, the achievement of a high-resolution TV camera with a pancratic lens throughout the entire range of magnification encounters difficulties due to the vibration of the periscope when the submarine moves in the periscope position, since under vibration conditions the position of the moving optical components is disturbed and the quality of the television image deteriorates. Typically, the movement of the optical elements is controlled by an electric drive and a mechanical cam or profile along which the optical components of the lens move without position feedback [SU 1732319 A1, G02B 15/14, 07.05.1992].

A universal periscope (non-penetrating type periscope) [Zinenko V.M. Submarine periscopes, state and development prospects // Marine Radioelectronics, 2012, No. 3 (41)] in the design of the head part of which there is a body, a protective window, a system of gyroscopic stabilization of the line of sight and a television camera with a pancratic lens, remotely controlled by an electric drive using a mechanical profile (cam). A television camera with a pancratic lens used in it also loses the quality of the television image when exposed to vibration when the medium is moving.

The technical problem being solved is the improvement of the device of the head of the universal periscope.

The achieved technical result is an increase in the resolution and sensitivity of a television channel with a pancratic lens, a decrease in the dimensions of the sighting part and an increase in the performance characteristics of a universal periscope.

The essence of the invention lies in the fact that in the head of the universal periscope (hereinafter referred to as the periscope), in contrast to the prototype:

- the position of each movable component of the pancratic lens of a television camera is controlled according to the signals of the position sensor with a servo drive programmed according to the known law of changing the magnification of a particular pankratic lens used;

- the formation of a color and black-and-white image signal in a television channel is carried out using one color television matrix permanently installed in the focal plane of a pancratic lens;

- a black-and-white channel with a higher level of sensitivity is realized by excluding (removing) the replaceable red filter from the pancratic lens (the red filter is introduced only in the color matrix operating mode to eliminate the long-wavelength part of the spectrum).

In addition, an unstabilized small-sized surveillance camera with a wide field of view of 90 ° is additionally installed in the head of the universal periscope, which, due to the introduction of an additional source of television information, makes it possible to quickly assess the surface situation during the ascent of the submarine and increase the operational characteristics of the periscope

The proposed device of the head of the universal periscope is shown in Fig. 1, where:

1 - universal periscope body (hereinafter referred to as the body),

2 - protective window,

3 - sighting prism in a gimbal with a system of gyroscopic stabilization of the line of sight (hereinafter referred to as the sighting prism),

4 - pancratic lens,

5 - position sensors of the optical components of the pancratic lens (hereinafter referred to as position sensors),

6 - servo drives of movable components of a pancratic lens (hereinafter - servo drives),

7 - module for controlling servo drives,

8 - electronic module with a television matrix (pancratic lens 4 with module 8 form a universal periscope television camera (hereinafter referred to as a television camera),

9 - red light filter (hereinafter - light filter),

10 - drive of the red filter,

11 - small-sized overview, unstabilized TV camera (hereinafter referred to as the review TV camera),

12 - signal to control the magnification of the pancratic lens, coming from the periscope operator,

13 - video signal from the TV camera, coming to the video monitor of the periscope operator,

14 - video signal from the surveillance camera, fed to the video monitor of the periscope operator.

The device functions as follows:

- housing 1 with a protective window 2 ensures the tightness of the head of the universal periscope,

- sighting prism 3 in a gimbal with a system of gyroscopic stabilization of the line of sight provides guidance of the sight line of the periscope in elevation,

- position sensors 5 of the optical components of the pancratic lens 4 through the module 7 transmit control signals to ensure the operation of the servo drives 6 that move the optical components of the lens when changing the magnification of the pancratic lens,

- the drive 10 of the red light filter 9 provides a change of the light filter in the pancratic lens of the universal periscope during the operation of the television camera: in the color mode it enters the light filter 9, in the black-and-white mode of the television camera - displays the light filter 9),

- surveillance camera camera 11 provides an overview of the surface situation when the submarine ascends,

- the magnification control signal 12 comes from the periscope operator,

- the video signal 13 from the electronic module 8 is fed to the video monitor of the periscope operator,

- the video signal 14 from the surveillance camera 11 is fed to the video monitor of the periscope operator.

The proposed design of the head of the universal periscope has been implemented and its functioning has been verified during tests. The technical solutions that make up the essence of the invention eliminate the effect of vibration of the universal periscope on the resolution of the TV camera and achieve full use of the light flux to form both a color signal and a black and white signal, which makes it possible to increase the sensitivity of the TV camera and reduce the entrance pupil of the pancratic lens of the TV camera and, accordingly, its dimensions. The tests confirmed the possibility of achieving a high-resolution television channel with a pancratic lens from 500 to 700 TVL. The use of only one color television matrix provides the necessary sensitivity of the television channel (in color and black-and-white mode) and a reduction in the dimensions of the sighting part of the universal periscope, which made it possible to install an additional small-sized unstabilized surveillance television camera with a wide field of view. The use of an additional small-sized unstabilized surveillance television camera increases the operational reliability of the periscope as an observation device and provides an operational assessment of the surface situation when the carrier ascends.

Claims (1)

The device of the head of a universal periscope, containing a housing, a protective window, a system of gyroscopic stabilization of the line of sight, a television camera with a pancratic lens, remotely controlled by an electric drive, characterized in that a television camera with a pancratic lens uses one color matrix with a replaceable red filter to form a color and black-and-white image, the movable components of the pancratic lens are moved by servo drives according to the signals from the position sensors of the pancratic lens, while an additional unstabilized small-sized survey TV camera with a wide field of view is installed in the head part.

Images