RU18780U1 - NIGHT-VISION DEVICE - Google Patents

Abstract

A night vision device containing a lens, an electron-optical converter and an eyepiece mounted in series on the optical axis, as well as a high-voltage power source, the outputs of which are connected to the corresponding electrodes of the electron-optical converter, and the input is connected to the output of the primary power source, characterized in that a pulse backlight unit, a computing module and an indication unit are introduced therein, the output of the pulse backlight unit being connected to the first input of the computing module, the second to the course of which is connected to one of the electrodes of the electron-optical converter, and the output to the input of the display unit.

Description

The proposed device relates to the technology of night vision devices and can be used to monitor objects and estimate the distance to them in low light conditions, in particular, at dusk :: at night.

A device is known for nabludny w: with built-in dGES of rangefinders ;, allowing to measure the distance :: b: e to the observed object.

The device is a bnlOgl, from monoculars of the co. „.

S h oo ting le o e but mounted on a hitch 0 © lens, wrap the prism; y; o CHCTeiviy Perro genus and eyepiece. In one of the monoculars, the first prism of the straining system is optically coupled to; a 7-laser laser beam: ate:; em. At the output of the second prism of the same nepei wrapping system; A beam splitter is installed on the eyepiece, the second output is Qimi which is interfaced with a photodetector, whose optical axis is perpendicular to the optical axis of the monocular. spool1: the first laser emitter and the shot-receiving device are connected to a computing module, the output of which is connected to a digital distance-range predictor .. (see International application 1 8802125,

and 02B23 / 00.1988.) This device only works in daylight: and is not suitable for observation at dusk and at night ... .., Known - night vision device (PCV), containing ambassador) to-t

An electron-optical transducer (ESP) and an eyepiece, separately mounted on the optical axis, are mounted on the optical axis jh 1J V i {And:

to give an image, an outline of a lightning rod: 1 ..:.: oh-a E1fane EOP. Electrodes f (; current electrode, microchannel 11 laso.L: 1ы (LKP) and the image intensifier screen are connected: they are connected to the corresponding conclusions of the UNO-VOLTAGE power source; whose input is connected to the output of the primary power source, (see.

,, - (980, (/. V4, 3,

/).) “This device, like .1a.: Closer to the proposed one, is taken as a prototype.

The device is able to provide: наб instillation of objects in conditions of insufficient light, in particular, at dusk and at night. However, it does not allow measuring the distance to the observed object. The introduction into this device of any of the known rangefinder modules, for example;;, l; h1-ultra laser module, as is done in the analog device, will lead to an unacceptable increase in iviaccH, size and cost of the device.

The proposed useful 1; 0dzl solves the problem of observing the object and measuring the distance to it in low light conditions:, in particular, at dusk and at night at night; ..: aos, dimensions and cost of the device ..

To solve this problem, in a well-known PNZ containing a lens, an image intensifier tube and an eyepiece, mounted sequentially on the optical axis, and a VM cirque, the high-voltage coding is connected to the corresponding EOL electrodes, and the coding is connected to the output of the primary power source, 6..iOK are introduced pulsed backlight, a computing module and a unit;; ka1t1sh, moreover, the output of the pulsed backlight unit is connected:,; the first input of the computational module, the second input of which is connected to from the electrostrodosis (photocathode, 1ZHP or screen) of the ZOI, and the output - to the input of the block ;. indication.

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The inventive lliid contains an optical lens 1, c / C 2, which is internally mounted on a non-optical axis, the inner surface of the entrance window of which is nan-sig. photocathode 3, and on the inner surface of the output window - imminent screen 4, and the eyepiece 5. The operation of the image intensifier tube 2 is opess. ; There is ZSH 6, the outputs of which are connected to the electrocost electrodes, -; and 3, screen 4 and MCP (not shown in the drawing). The input of the BIL 5 under:. Is connected to the output of the primary power supply 7. In addition, the composition of the claimed device includes a computational mode ... о 6, an indication unit 9 and a unit pm "pulse backlight 10, the input of which is connected to the first input of the computational module о , in which the second input is connected to one of the PDO electrodes; b.; in the version shown in the drawing - with an electrode luminn :: op1L; y | A common screen 4. Perhaps so; ke the second input connection would be for part jc.cartel module 8 to the electrode of the photocathode 3 or electro, MCP EOP 2. To form backlight output b.ok 10 can be installed lens II.,

The device works in their own way.

At night, the radiation of stars and the Moon, which determines the level of natural nighttime light, is emitted from the object of observation and the background surrounding it, l goes to lens I. Lens I creates: background and the observed object, photocathode 3 of the image intensifier tube 2 in the visible L infrared 0J) spectral regions. The image intensifier 2 amplifies and transforms the image into a visible one and presents it on the lum11n: -sq: screen 4. This image is seen by the operator O .: iepes eyepiece 5. In the process, the image intensifier 2 is supplied from VSh1 6. VIP 6, in turn , is powered from the primary power source 7.

Sveta. Simultaneously with the input; BLO: HA of the pulsed backlight 10 is supplied electrically from the input and the first input of the computing module 8.

 The backlight pulse 10 reflected from the object of observation is received by lens I, which creates an image of the backlight spot on photocathode 3 of the image intensifier tube 2. As a result, the power supply circuits of the image intensifier tube 2 are: 1; the catethe voltage pulse, which can be taken from any of the electrodes of the image intensifier tube 2: from the electrode of the photocathode 3, from the electrode L1KP LL :; from the electrode of the luminescent screen 4; in the embodiment of the device depicted in the drawing, this pulse is removed from the electrode of the luminescent screen i and fed to the second input of the calculating module 8. Computing module 8 calculates the time between the arrival of the electric pulse received at the first input of the computational module 8 from the output of the sh-ptull block illumination 10, and the arrival of an electric pulse, post IIH5: oro to the second input of the computing module 8 from the electrode lp-nn -genera of the screen 4 of the image intensifier 2. This time is equal to the time of passage} hDe1l: I light pulse from the operator the observed object and back. The calculator Ffflt module 8 recalculates this time into the distance to the object of observation and takes this value to block 9.

Thus, in the pre |; lagae; uyL device, both observation and the measurement of the distance to the observed object for the first time are realized under conditions of a reduced level of natural illumination,

At the same time, the use of an image intensifier tube both for forming a visible image of an observable object and for receiving a signal with a pulsed illumination: and reflected from the object of observation allows one to refuse to introduce a photodetector into the device

devices with the appropriate frequency for receiving pulsed illumination signals during iZmeren - „: the distance to the object is about 1 day. As a result, the information security device has a minimum weight and dimensions and has a low cost.

Were manufactured and tested.:; experimental samples of the proposed SH.

For the experimental ones, a Pet.val lens with a focal length of 100 Ш1 and a relative aperture of Y 1: 1.5 was used. The eyepiece was a magnifying glass with a uye. We used a sulfur-based image intensifier tube; B: fabric with a built-in high-voltage power supply. Two BETiH jb batteries were used as the primary power source. Computing was performed as a comparator on a 2CA52J chip. The display unit was a four-digit photodiode indicator. The pulsed illumination unit was RESULTED on a laser emitter ILGI-SW with a wavelength of 0.85 μm. To form the output laser radiation at the output of the pulsed illumination unit: 1, a two-lens lens with a focal length of 100:, warheads, and a relative aperture of 1: 1.4 was used.

The dimensions of the device fully meet modern requirements ;. . Tests of the instrument at dusk and at night: 1/1, confirmed its effectiveness; e work on observing objects i. measuring the distance to them.

Authors: Zeselovsky I.A.

V - Tokarev A.N.

 Z.G.

Assnov A.S.

Claims (1)

A night vision device containing a lens, an electron-optical converter and an eyepiece mounted in series on the optical axis, as well as a high-voltage power source, the outputs of which are connected to the corresponding electrodes of the electron-optical converter, and the input is connected to the output of the primary power source, characterized in that a pulse backlight unit, a computational module and an indication unit are introduced therein, and the output of the pulse backlight unit is connected to the first input of the computing module, the second to the course of which is connected to one of the electrodes of the electron-optical converter, and the output to the input of the display unit.