Abstract: This invention relates to industrial physics and, in particular, to methods of laser treatment. The laser treatment method consists of irradiation of the surface of an object by laser beams directed to treatment zones having a desired shape, wherein laser beams are subjected to spatial phase modulation dictated by the shape of the treatment zone and the prescribed distribution of intensity and are, simultaneously, rotated.A device realizing this method comprises a source of laser radiation with an optical system for delivery of laser radiation to the object, which is positioned on the optical axis of the source and includes at least one phase computer-designed element made as a reflecting or transmitting plate with a micropattern on the surface thereof, which is dependent on the shape of the treatment zone, distribution of laser radiaiton intensity, and its wavelength (.lambda.), the height (h) of the peaks of the micropattern varying, from the base (a) to the top (b), from 0 to .lambda.

Abstract: Phosphate neodymium glass for laser use, consisting of phosphoric anhydride, an oxide of at least one of alkaline metals, and neodymium oxide or a mixture of neodymium oxide and oxide of at least one of the following metals; La, Gd, Lu, Sc, Y, Al, Cr; the ratio between the above-cited components as follows (mol. %):______________________________________ phosphoric anhydride 64-77 oxide of at least one of alkaline metals 26-8 neodymium oxide or a mixture of neodymium 10-15 oxide with an oxide of at least one of the metals: Ln, Gd, Lu, Sc, Y, Al, Cr. ______________________________________The herein-proposed invention is intended for producing active elements for lasers of a wide purpose including thin-film and miniature lasers with generation wavelengths within the ranges 1.06 and 1.34.mu.. Phosphate neodymium glass for laser use of the developed composition can be synthesized in required amounts by a simple method.

Abstract: An electrooptical camera comprises an image intensifier connected to a control system for gate and scanning, which system includes a serial arrangement of a trigger oscillator, a master oscillator and an amplifier unit, which comprises preamplifiers and output amplifiers for the gate and scanning channels. The trigger oscillator is a relaxation oscillator utilizing an avalanche transistor and a storage capacitor in its collector circuit. The master oscillator is a Marx oscillator with an optical input and with cable line timing sections of different lengths in its collector circuits. The output amplifier of the gate channel is coupled to the gate system of the image intensifier. The output amplifier of the scanning channel is electrically coupled, via integrators, to a load in the form of a wide-band two-channel cable transformer/shaper, which is coupled to the deflection system of the image intensifier.

Abstract: An image intensifier comprises an evacuated tube envelope which accommodates a serial arrangement of a photocathode, an accelerating electrode having a hollow cylinder in which an element with a grid is disposed, said grid being placed on that end of the element which faces the photocathode, a focussing electrode made in the form of a hollow cylinder having a diameter equal to the diameter of the hollow cylinder of the accelerating electrode, an anode diaphragm, an electronic gate with a diaphragm and deflecting plates and an image scanning system each constituting a through-type two-conductor circuit and having terminals disposed on the tube envelope and a fluorescent screen, the distance L between the photocathode and the fluorescent screen, the distance S.sub.1 between the accelerating and focusing electrodes, the distance S.sub.2 between the focusing electrode and the anode diaphragm, as well as the lengths l.sub.1, l.sub.

Abstract: A laser ophthalmological unit comprises a lasing source and an optical sym having a slit source for illumination of the surgery field. This laser and illumination source are housed in a common casing hinged on the bracket of the microscope designed for observation of the surgery field. The emission supply system of said slit source and of the laser are mounted rigidly on said hinged casing but can be adjusted.