RU200536U1 - MULTI-LAYER PROTECTIVE VISIR - Google Patents

Abstract

The utility model relates to the development of personal protective equipment for the organs of eyes and face, in particular, to protective glasses capable of protecting the organs of sight and the face of a person from bright sunlight, from being hit by high-speed projectiles and flashes of bright light of high intensity. We offer a multi-layer protective sight for protecting organs. from exposure to damaging elements, sunlight, as well as flashes of bright light of high intensity. The design of the device contains: light sensors, a layer of polycarbonate of a given thickness, a layer of a photochromic film, a layer of an electrochromic film, a conductive loop, an electrochromic layer control unit, a compartment for a battery, power switch. Light sensors react exclusively to a sharp intense change in illumination. Polycarbonate layers of a given thickness are designed to protect against high-speed projectiles, to prevent the formation of secondary fragments, while they have a low weight, high transparency A layer of photochromic film protects the organs of vision from sunlight by the presence of molecules of photochromic substances in it, which, under the influence of sunlight, pass from an initial state characterized by a high degree of light transmission to an activated state in which much less visible light is transmitted ... After the cessation of exposure to ultraviolet radiation, the molecules of photochromic substances spontaneously return to their original state and transmit all visible light. The layer of electrochromic film protects the organs of vision from short-term exposure (up to 30-40 seconds) to high-intensity light radiation. The effect of an electromagnetic field on the electrochromic film changes the spatial position of the crystal structure. This leads to a change in the light transmittance of the entire film. To form an electromagnetic field, an electric voltage is applied to the electrochromic film plates from the control unit. The magnitude of this voltage depends on the illumination of the light sensors located on the surface of the sight. The light sensors, in turn, react to the illumination, which changes abruptly when there is a flash of high intensity bright light. The corresponding signal is sent from light sensors to the control unit. The latter, by changing the voltage on the electrochromic film plates, changes its transparency. The control unit is located on the outer surface of the device. Lithium and solar panels are used as a power source, which significantly increases battery life. The technical result to which this model is aimed is to create a device for protecting the eyes and face from the effects of high-speed projectiles, sunlight and high-intensity flashes of light.

Description

The utility model relates to the development of personal protective equipment for the organs of eyes and face, in particular, to protective glasses capable of protecting the organs of vision and the face of a person from bright sunlight, from being hit by high-speed striking elements and flashes of bright light of high intensity.

Known bulletproof glass "anti-sniper" (patent RU No. 127890, IPC F41H 5/26) as part of a multilayer translucent block for protection against small arms, including outer and inner sheets of glass and placed between them a sheet of polycarbonate. The translucent block is equipped with a layer of electrochromic film, and also has a shock sensor that reacts to waves arising in the translucent block when a small arms bullet hits it.

The disadvantages of the specified bulletproof glass "anti-sniper" are: applicability only for buildings, structures and special vehicles; the inability to use for the sight due to the large weight and size characteristics, as well as the lack of protection from sunlight.

Also known is a multi-layer translucent block for protection against firearms (patent RU No. 2191972, IPC F41H 5/26), which consists of glass outer and inner sheets and intermediate polycarbonate sheets placed between them. Intermediate sheets are spaced to create air traps that dissipate and absorb bullet energy.

The disadvantage of this multilayer translucent block is the impossibility of using it as a helmet visor, since it has large weight and size characteristics, as well as the lack of a constructive possibility of protection from sunlight and high-intensity light flashes.

Known device for protection of the respiratory system and the head "gas mask-armored helmet" (patent RU No. 190408, IPC A62B 18/00), consisting of: a tissue-polymer body; protective glass; intercom; submask; two exhalation valves; power supply element; filtering and absorbing elements; devices for receiving fluid; microelectric fans; abturator capes; strips for installing night vision devices, tactical flashlights; chin strap; sub-unit device; knitted hydrophobic cover.

The disadvantages of this device are: the visor is made of a single layer of polycarbonate, which in turn can lead to the formation of secondary fragments; the design of the protective glass (visor) of the gas mask provides exclusively one-time protection of the organs of vision from high-intensity light flashes; the design of the protective glass does not provide the ability to protect the organs of vision from sunlight, with differentiated (depending on the intensity of illumination) light transmission.

We offer a multi-layer protective sight to protect the organs of vision from the effects of damaging elements, sunlight, as well as high-intensity flashes of bright light.

The achievement of these results is provided by the design of the device containing (Fig. 1): light sensors (1), a layer of polycarbonate of a given thickness (2), a layer of photochromic film (3), a layer of electrochromic film (4), a conductive loop (5), a control unit electrochromic layer (6), battery compartment (7), power switch (8).

Light sensors react exclusively to sudden, intense changes in lighting.

Polycarbonate layers of a given thickness are designed to protect against high-speed striking elements, to prevent the formation of secondary fragments, while having a low weight, high transparency, and stronger than glass.

The layer of photochromic film protects the organs of vision from sunlight through the presence of molecules of photochromic substances in it, which, under the influence of sunlight, pass from an initial state characterized by a high degree of light transmission to an activated state in which much less visible light is transmitted. After the cessation of exposure to ultraviolet radiation, the molecules of photochromic substances spontaneously return to their original state and transmit all visible light.

The layer of electrochromic film protects the organs of vision from short-term exposure (up to 30-40 seconds) to high-intensity light radiation. The effect of an electromagnetic field on the electrochromic film changes the spatial position of the crystal structure. This leads to a change in the light transmittance of the entire film. To form an electromagnetic field, an electric voltage is applied to the electrochromic film plates from the control unit. The magnitude of this voltage depends on the illumination of the light sensors located on the surface of the sight. The light sensors, in turn, respond to the illumination, which changes dramatically when a flash of high intensity bright light. The corresponding signal is sent from light sensors to the control unit. The latter, by changing the voltage across the electrochromic film plates, changes its transparency.

The control unit is located on the outer surface of the device. Lithium and solar panels are used as a power source, which significantly increases the battery life.

The technical result to be achieved by the present model is to create a device for protecting the organs of vision and face from the effects of high-speed damaging elements, sunlight and high-intensity light flashes.

List of used literature:

1. Patent for invention No. 2191972, IPC F41H 5/26.

2. Patent for utility model No. 127890, IPC F41H 5/26.

3. Patent for utility model No. 190408, IPC А62В 18/00.

Claims (2)

1. A multi-layer protective sight, characterized in that it has light sensors in its design that respond exclusively to a sharp, intense change in illumination, polycarbonate layers of a given thickness to protect against high-speed striking elements, exclude the formation of secondary fragments, a layer of photochromic film that protects the organs of vision from sunlight through the presence of molecules of photochromic substances in it, a layer of an electrochromic film that protects the organs of vision from short-term exposure of up to 30-40 seconds to high-intensity light radiation, a conductive loop, an electrochromic layer control unit located on the outer surface of the device, a compartment for a battery, power switch. 2. Multilayer protective visor according to claim 1, characterized in that it can be integrated into a protective helmet.

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