This invention is referred to methods of creation of narrow light pensile that can be spreaded to a long distance without any dispersion and can create a big density of radiation power.

The methods like the above-mentioned are being used widely. The laser method, which is known in European Community countries, it is patented in several laser devices, that are the prototypes of the present invention. In above-mentioned devices a laser is lighting the very small zone which doesn't exceed some centimeters. If there is a need to widen an active zone it's necessarily to move the laser beam, this makes the device more complicate, or it's necessarily to use more than one laser generator and it increases many times its price. The wonderful capabilities of laser have local functions and it's difficult to expand an application of this capabilities using the above-mentioned devices. This method can be used widely, for example, in medicine for separate sections disinfecting, for heal wounds, for human skin cleaning from foreign incrustations, for backbone illnesses treatment etc.

According to the present method, a laser beam is turned to convex polyhedron (3a) with mirrored sides (3). The polyhedron (3a) is rotating. The rotation speed can be changed, also can be changed the power and the laser beam frequency The polyhedron is slowly rotating on its vertical axis. In this case the laser beam is being reflected from mirror (3) surface and this is a reflected beam that is acting. Like a whichever light ray, the reflected laser beam reserves at least the 60% of its primary energy and this is a very high level, taking into account the laser radiation power high density. In that way, the reflected beam reserves to the big degree an initial laser beam primary capacities thoroughly it permits us to use it widely.

The low-speed engine rotates the convex mirrored polyhedron at a speed of some rotations at one minute. Then an initial laser beam, the laser is disposed at a concrete distance (it depends on room dimensions) from the polyhedron (3a), is breaking in multiple reflected rays. Every this track can be widely adopted. The present method permits to realize the different works, impossible until now in

the spheres of medicine, veterinary since, security systems, aeronavigation, phytopathology etc. The laser multiple beams reflection method can be used widely. Its possible to use the lasers with small or big power and with different radiation specter, from ultra-violet to infra-red.

The reflected beam reserves at least the 60% of its primary energy (thoroughly, its possible for somebody to become tanned at the sea- cost under the awning from sun rays, reflected from the sea surface).

The reflected beam reserves also the primary laser beam thinness, narrowness property.

The invention is described below with the help of one example and with the reference to drafts, where: In figure 1 is shown the scheme of laser device which is working in accordance with the multiple beams reflection method.

In figure 2 is shown the scheme of the multiple beams laser cleaner device and its connection with current source. The polyhedron (2) with the mirrored sides (3), for example, with 20 sides, is disposed in the center of room (1).

Every one of its 20 sides has three-cornered form. The polyhedron has 30 ribs. We can calculate the polyhedron surface, which reflects the laser (5) beam (4), with the help of the following formula: S = 8,66 a2, (1) Where a is the polyhedron rib length, cm.

At the distance no less than two polyhedron diameters is disposed the continuous action laser. The engine (6) rotates slowly the polyhedron (2). The engine and the polyhedron are fastened to the same axis (7) and to the support (8). An electric panel (10) supplies the engine (6) and the laser (5) with electricity through the wires (9). The metallic parts of the above-mentioned equipment are earthen for safety by means of ground connection (11).

In figure 2 is well shown how the reflected rays (12) are creating on the room walls the laser light tracks (13). This device is working with the following way: The power supply is being fed from the electric panel (10) through the wires (9) to the multiple beams laser cleaner.

At the same time the laser (5) which is turned to polyhedron (2) is creating the beam (4). At the same time the engine (6) which is mounted on the support (8) and is fastened to the same axis with the polyhedron (2) is slowly rotating. The twenty three-cornered sides (3) during the polyhedron (2) rotation are reflecting multiple times the

laser beam (4) and they are creating in the room (1) volume many mobile reflected rays (12). This circumstance is putting the tracks (13) motion on the room surfaces (1). As a result of present multiple beams laser cleaner working the surfaces and the room air are absolutely clean, this conforms to 100% sterility.

In following tables 1 and 2 are adduced the results of sterility degree clearing up indoors experiment during the multiple beams laser cleaner working.

The following conditions was chosen. The room volume-100 m3, treatment duration-30 minutes, mirrored sides polyhedrons types, in agree with a number of sides: 6,10,12,20,100; polyhedron (engine) rotation speed, rotations at one minutes: 2,4,6,8,10. It was chosen 5 places of the room for samples (in figure 1 this places are shown with Roman numerals): I, III are the walls, II is the ceiling, IY is the floor and Y is the sample of room air. The helium-neon continuous action laser has been used. Previously the room was moistly tidied up. Table 1 The sterility degree and the polyhedron rotation speed ratio. Rotations at one Minute Sample 2 4 6 8 10 190 100 80 75 60 II90 100 80 75 60 in90 100 80 75 60 IY90 100 80 75 60 Y 80 100 100 100 100 Table 2 The sterility degree and the polyhedron sides number. Number of sides Sample 2 4 6 8 10 1 90 100 80 75 60 90 100 80 75 60 ni 90 100 80 75 60 IY90 100 80 75 60 Y 80 100 100 100 100 In the above-mentioned tables is shown that it's possible to achieve the high sterility degree, and the optimal engine (6) and polyhedron (2) rotation speed is 4 rotations at one minute.

Thorough for a high sterility degree it is enough to use the 20 sides polyhedron (table 2) with the a = 15 cm (see the formula 1).