RU11299U1 - LIGHTING DEVICE FOR PROTECTING PROTECTED OBJECTS - Google Patents

Description

Lighting device to protect protected objects.

The utility model relates to lighting engineering, in particular to directed beam lighting systems, and can be used to detect and prevent unauthorized access to a guarded object, as well as to protect it.

At present, search and detection of persons trying to penetrate protected objects (territories) are carried out using searchlight-type lighting installations containing a light source, a source power supply and a light-converting optical system that forms a radiation pattern.

The effectiveness of lighting devices of this type is the higher, the greater the range of their action, therefore, in search mode, the device operates with a relatively narrow light beam with high light intensity. This gives time to prevent other means of unauthorized entry into the protected area (object) after its discovery.

One of the most effective devices to prevent unauthorized entry into a protected area is a device for temporary disabling the organs of vision of the intruder (directly or via optical communication channels) - i.e. his temporary blinding. In a number of foreign countries, similar ship-based or ground-based installations are being created. A similar domestic installation 1 is known - a lighting device that contains a light source, a power supply unit and a light converting optical system, the light converting system being made in the form of a bundle of optical fibers fixed in a reflector, and

IPC: F21M1 / 00

a mirror mounted in the focus of the reflector, opposite the beam of optical fibers, and the light source is a coherent light source made in the form of several lasers, each of which is connected to the reflector by a separate optical fiber. Having received a dose of light radiation from this device, the intruder, experiencing blinding and disorientation, loses the ability to perform vrayaedebnye actions.

Depending on the angle of sight, the degree of adaptation of the eye to the conditions of illumination, as well as the protection of the organs of vision by special means at the same energy, the lesion may be reversible or irreversible.

From this point of view, the fundamental drawback of lighting installations for the protection of protected objects containing a coherent light source as a light source is that, as it turned out, their use with a high degree of probability leads to irreversible processes in the organs of vision.

A known design of a search-type lighting device, selected as a prototype, containing an incoherent light source such as a discharge lamp, a power supply unit and a light-converting optical system 2. The luminous intensity of this lighting device is quite sufficient to temporarily blind the intruder at a considerable distance, and damage to the organs of vision is reversible .

The disadvantage of this device, selected as a prototype, is that the search and defeat of the offender is carried out in continuous light radiation, against the blinding action of which there are relatively simple ways to protect the organs of vision.

The purpose of the utility model is to increase the efficiency of the use of a lighting device for guarding, as well as protecting objects by generating light radiation in the form of packets of radiation pulses.

This goal is achieved due to the special design of the power supply unit of the light source of the lighting device.

The device according to the claimed utility model contains a source of incoherent light such as a gas discharge lamp (GRL), a power supply unit and a light converting optical system. Unlike the prototype, the device further comprises a current modulation unit for the incoherent light source. The average power on the lamp in this case is at least 800 W, and the modulation pulses have a frequency in the range of 8 ... 20 Hz with a duty cycle of 0.5 and, in turn, can be modulated by a frequency in the range of 2 ... 8 kHz, converting into pulse packets .

Figure 1 presents a block diagram of a lighting device for the protection of protected objects.

The lighting device comprises an incoherent light source such as a discharge lamp 1, a light converting optical system 2, a power supply 3, which is connected to the lamp 1 through a current modulating unit of the lamp at a frequency of 4 and a control panel 5.

The proposed design of the lighting device ensures its operation in two modes - “search and“ protection. Transfer from one mode to another is carried out by giving a command from the control panel 5.

The searchlight works as follows. In the search mode by command from the control panel 5, the current modulation is turned off and the gas discharge lamp burns in a continuous arc mode. The light emitted by the lamp 1 is formed by the light converting optical system 2 into a light beam.

which goes into the outer space. After the intruder is detected, the current protection unit 4 from the control panel 5 receives the “protection” command, by which the current modulation is turned on, and lamp 1 enters the operating mode by pulses, the frequency of which is determined by the modulator 4 setting by the signal from the control panel 5.

When modulating in the range of 8 ... 20 Hz, the lamp is a source of bright blinking light, which can cause the intruder not only to temporarily become blind, make it difficult to aim and move on the ground, but also cause a sharp deterioration in well-being, cause phenomena that usually precede epileptic seizures, t .e., in the end, bring the offender into a state of complete disability, without causing irreversible changes in the organs of vision and his mental state.

When the intruder uses optical-visual guiding means with guided weapons, such radiation causes disorientation in his actions, minimizing the probability of hitting the target.

The presence of modulation in the radiation in the range 2 ... 8 kHz allows you to affect the optoelectronic guidance channels of guided missiles, disrupting the automatic correction of the trajectory due to disorientation in the development of the error signal.

The alleged long-range lighting device can be used to protect territories, disperse crowds, prevent the flight of individuals, as well as to fight terrorists, including those armed with high-precision weapons. The design of the lighting device is characterized by simplicity, reliability and ease of use.

1,0 kW. The discharge gap is 1.5 ... 5mm. The lamp is fixed in plinths for precise installation relative to the reflector. Heat removal is provided by a fan, which provides intensive air circulation in the emitter cavity. The parabolic reflector has a diameter of 200 ... 250 mm and a focal length of 25 ... 36 mm, the reflection coefficient is not less than 0.85. The window for the exit of light radiation is a tempered safety glass, hermetically mounted in the frame.

The power supply and control panel are enclosed in separate housings and are connected to the emitter by cables.

Literature:

1. Useful model of the Russian Federation N4584, Lighting, Bull. N7, 1997.

2. Searchlight SX - 16 (USA), Operating Instructions.

Applicant:

Director of Research Institute Zenit xlf / obzar A.I.

Director of ZAO Jupiter-Z Akopov L. I

Claims (5)

1. A lighting device for protecting protected objects, comprising a source of incoherent light such as a discharge lamp, a power supply unit and a light converting optical system, characterized in that it is further provided with a current modulation unit for the discharge lamp in frequency included between the discharge lamp and the power supply, the average power the lamp is not less than 800 W, the fixed frequency of the current modulation is 8 - 20 Hz, and the duty cycle is 0.5.  2. The device according to claim 1, characterized in that the current modulation unit is configured to automatically scan the current modulation frequency of 8 to 20 Hz.  3. The device according to claim 1, characterized in that the current modulation unit is configured to further modulate current pulses with a frequency of 2-8 kHz.  4. The device according to claim 3, characterized in that the current modulation unit is configured to automatically scan an additional frequency of the current modulation of 2-8 kHz. 5. The device according to claims 3 and 4, characterized in that the current modulation unit is configured to automatically scan the current modulation frequency in the ranges of 8 to 20 Hz and 2 to 8 kHz simultaneously.