Product with luminous surface provided by led
SUBSTANCE: product with luminous surface comprising a light guide providing the mentioned luminous surface, wherein the light guide comprises a plurality of scattering elements to produce an almost uniform light output at the luminous surface, and a plurality of solid-state lighting elements. Each of the mentioned solid-state lighting elements is configured to emit a light beam into the light guide. The light guide also includes the first body configured to create corresponding optical images in the light guide by creating corresponding areas in the light guide which are shaded from the corresponding light beams.
EFFECT: invention allows to exclude the need for a body on the light guide surface with uniform illumination.
14 cl, 8 dwg
SUBSTANCE: display panel has a substrate, having a viewing surface, a plurality of radiation directing elements inside the substrate and an electromagnetic emitter for emitting electromagnetic radiation into the substrate. Elements inside the substrate can direct at least a portion of electromagnetic radiation transmitted into the substrate by an electromagnetic emitter in the direction of the viewing surface in order to form a given image. The method of making such a substrate involves focusing a radiation beam inside the substrate in order to form a radiation directing element, which is configured to direct radiation transmitted into the substrate in a given direction in order to form a given image.
EFFECT: improved display panel properties and wider range of display devices.
14 cl, 7 dwg
FIELD: physics, illumination engineering.
SUBSTANCE: luminous plate with frontal illumination contains a lightguide panel element made of transparent material, photodiode illuminant placed so that light beams emitted by the illuminant go to lightguide panel element through its edge, also it contains a dot matrix light output structure formed on the front surface of the lightguide panel element. Gapes d1 and d2 between near points of dot matrix light output structure, correspondingly vertically and horizontally are selected from the condition of visual fusion of indicated points and don't execeed values d2=L·tg(α), where: H - height , on which the luminous plate is supposed to place, h - height of observation, L - predetermined minimum distance, horizontally measured, and from which points of dot matrix structure visually interfused, α - 1/60 degree (eye's resolution of an observer for normal acuity of vision).
EFFECT: attainment of 'continuity' effect of illuminated surface of luminous plate.
2 cl, 1 dwg
FIELD: engineering of lighting devices with side illumination.
SUBSTANCE: lighting device with side illumination has at least one lighting source, element, letting light through, at least one light output surface and at least one light input edge, in fact being perpendicular to aforementioned surface. Lighting source is positioned adjacently to light input edge in such a manner, that light from light source gets into let-through element through aforementioned edge and expands across element, while aforementioned at least one light output surface has even roughness along output surface. Let-through element maintains, in fact, even thickness with increase of distance from light source. Roughness is light enough, providing average value Ra across surface not less than 1,0 mcm/mm of element thickness.
EFFECT: increased evenness of emission across output surface.
2 cl, 6 dwg
FIELD: engineering of devices for controlling electric light sources, in particular, lighting or illumination systems, which use light diodes in their construction.
SUBSTANCE: by means of personal computer, using specialized graphic software, a frame of required light diode illumination is formed. By means of color pattern, each imitator of light diode module is colored. After forming of one frame, other frames are formed, which require to be colored in similar way. Number of frames is determined by given model of illumination. As a result, animated cinematic is produced, which reflects appearance of illumination model. After that, programmed model is transferred to flash memory of controller through RS-485 interface port. Then, controller outputs aforementioned data into loop line with light diode modules.
EFFECT: using device for decorative or primary lighting of architectural objects makes possible fast generation of complicated and various models and types of illumination and backlight, with possible control over each module.
2 cl, 10 dwg
FIELD: lightning engineering.
SUBSTANCE: information symbol is illuminated by means of light-emitting diodes mounted along contour of information symbol at its back side. Light-emitting diodes are enclosed into flexible transparent light guide. Optical system distributes luminous flux along contour of information symbol and can be made in form of corner reflector which embraces light-emitting assembly at the side being opposite to contour. Optical system can be made in form of II-shaped channel or in form of light-reflecting board being adjacent to back side of edge of information symbol. Light-emitting diodes on open side of reflector can be coated with diffuse-shattering self-gluing film. Light-emitting diodes can be closed with protective diffuse-shattering transparent screen. Light-emitting diodes can be installed onto stiffening rib disposed at back side of symbol at specific angle to plane of image. Light-emitting diodes bearing against different sides of back side are connected to different voltage-regulated power sources. Three-colored light-emitting diodes can be used. Light-emitting diodes working at specific radiation spectrum are connected to different voltage-regulated power sources.
EFFECT: widened range of application; reduced exploitation costs; improved design.
9 cl, 14 dwg
FIELD: physics, optics.
SUBSTANCE: invention relates to an illumination device. The device comprises a light source and a lens placed in front of the light source. The lens is provided with a light input surface on the side facing the light source and a light output surface on the side away from the light source. The lens includes a certain number of strip elongated light guide elements connected to each other near the second ends and has light input surface and a light output surface. Light beams emitted by the light source are transmitted to the elongated light guide elements through total internal reflection.
EFFECT: lower detectable brightness owing to a larger light output surface compared to the light emitting surface.
9 cl, 12 dwg
SUBSTANCE: this fibre consists of a central waveguide rod of chalcogenide glass, microstructural waveguide shell of alternating plies of said glass and air gaps and second protective microstructural shell of multicomponent glass. Proposed method comprises pre-drawing of rods. Then, chalcogenide insert if formed by laying the rods of chalcogenide glass with appropriate air gaps. Then, outer support capillaries of multicomponent glass are fitted in thick-wall tube of multicomponent glass.
EFFECT: high nonlinearity.
5 cl, 2 dwg
SUBSTANCE: optical probing signal is entered into each fibre of the optical line. Each specified signal which passed through the respective fibre of the line is consistently read out and an optical fibre in the line is identified on the basis of the received signal. The probing signal for each fibre of the line has a unique sequence of optical impulses which characterizes the number of optical fibre in the line.
EFFECT: automation of the process of identification of optical fibres, improvement of reliability of identification of the ends of optical fibres irrespective of their number, arrangement and colour marking.
2 cl, 2 dwg, 1 tbl
SUBSTANCE: dry, deuterium-containing gases, for example dimethylsulphoxide D6 vapours, are introduced into a tube of a fibrous light guide workpiece. Alloying of precipitable layers of a glass core and envelope with small additions of deuterium is carried out both in the process of the layer precipitation and at high-temperature tube compression.
EFFECT: reduction of the light guide optical loss and mass loss of workpieces, reduction of thereof production process duration.
2 cl, 1 tbl
FIELD: physics, optics.
SUBSTANCE: invention relates to single-mode optical fibres having a low attenuation coefficient. The optical waveguide fibre includes a core and a cladding. The core includes an alpha-profile, where alpha (α) is greater than 2.5 and less than 3.0. The core and cladding provide the fibre with an attenuation coefficient of less than 0.331 dB/km at wavelength of 1310 nm, attenuation coefficient of less than 0.328 dB/km at wavelength of 1383 nm, attenuation coefficient of less than 0.270 dB/km at wavelength of 1410 nm and attenuation coefficient of less than 0.190 dB/km at wavelength of 1550 nm. Also provided is a method of producing the optical fibre.
EFFECT: reduced attenuation coefficient and bending loss.
5 cl, 8 dwg, 5 tbl
SUBSTANCE: invention relates to lighting devices. In a light-emitting device a light source has narrow or limited distribution of light intensity. The device is designed so that light from a source is emitted with a wider spatial distribution of light intensity through a peripheral surface at the light emission section designed as a funnel.
EFFECT: light-emitting device in addition contains a mixing section for the light radiated from the source.
13 cl, 8 dwg
SUBSTANCE: invention is related to a lighting facility with waveguide. The device comprises a waveguide element with the first and second outer surfaces and waveguide boundary. LED-based radiation source with optional collimating optical element is intended for radiation entry to the waveguide element through waveguide boundary. The first outer surface comprises structures for output of radiation from the waveguide element through the second outer surface. The device comprises a cavity with reflector in order to reflect radiation in the cavity in sideway direction from the second outer surface.
EFFECT: development of compact-size and thin lighting facility, which may be suspended to the ceiling, ensuring lighting from the ceiling by means of lighting in upward direction and lighting of the specific are by means of lighting in downward direction.
15 cl, 27 dwg
SUBSTANCE: invention relates to a device for removal of a cover of an optic fibre. In device (11) for removal of the cover of the optic fibre for drawing of glass fibre (1a) from coating (1b) by cutting coating (1b) in part (31) for removal of the cover and movement of part (13) for retention of the optic fibre to the side from the main unit (12) of the device for removal of the cover in a heated state, part (31) for removal of the cover is provided with supporting element (43) of a heater, on which heater (42) is installed, supporting element (43) of the heater is arranged in a recessed receiving part formed in housing (12a), heat-insulating gap (55) is formed between recessed receiving part (51) and supporting element (43) of the heater, the side surface of supporting element (43) of the heater and the inner surface of side wall (51b) of recessed receiving part (51) come into contact with each other by means of side rib (61) made on supporting element (43) of the heater.
EFFECT: providing a possibility of removal of a coating without any water penetration and with lower traction force, which is required for removal of the coating.
4 cl, 15 dwg
SUBSTANCE: cartridge for an apparatus for welding optical fibres comprises a base in the form of a plate with a rectangular shape in plain view which is positioned on a working surface, on the front surface of said plate of which on the edges of the same oppositely lying sides there are upward protruding prism-shaped blocks with sockets for mounting rod electrodes which are inserted coaxially with pointed ends opposite each other over the central part of the plate between the blocks. The rod electrodes at the other ends have nodes for connecting to a power supply for arc welding. In the central part of the plate there is a working area with sockets in form of coaxial channels lying along an axis perpendicular to an axis which passes through the rod electrodes while crossing the latter in the arc welding area for positioning ends of the optical fibres to be welded in the arc welding area. The working area has two spaced-apart guides on which V-shaped channels are formed, which are laid in reciprocal grooves on the back side of the plate in the prism shape of the blocks with through-openings for inserting the rod electrodes, provided with units for movement thereof along said openings for adjusting the position of the pointed ends thereof relative to each other, passing through coaxial cavities. In each prism shape of the block there is a through-opening for holding a cup-shaped element with a fastening element for a rod electrode.
EFFECT: simple design, high efficiency and easy usage.
SUBSTANCE: fibre-optic guide is obtained by chemical deposition of quartz glass from a mixture of starting gaseous reagents. The optic guide has a core of undoped quartz glass with low content of chlorine in the glass of the core due to considerable excess of oxygen O2 relative to silicon tetrachloride SiCl4 during manufacture.
EFFECT: providing high radiation resistance of an optic guide in the near infrared range by suppressing radiation-induced light absorption.
32 cl, 7 dwg
FIELD: radiation monitoring.
SUBSTANCE: detector has X-ray registration unit made in form of set of fiber-optic scintillators and fiber-optics communication transmitting unit (both made in form of single fiber-optic module, photoreceiver provided with signals electronic processing unit made in form of pixels optical system. Integral fiber-optic module is made in form of one-piece fibers on the base of argentums halogenides AgCl-AgBr-AgI. Registering part has active admixture and transmitting part has no active admixtures.
EFFECT: improved efficiency of registration.
FIELD: fiber-optic technology; laser processing of materials.
SUBSTANCE: optical fiber is substituted with target when adjusting. Target is positioned at plane of entrance edge of optical fiber. Mark is applied onto surface of target by means of single laser pulse passed through focusing unit. Observing unit is installed. Plane of target is observed through eye-piece and focusing unit. Center of mark at target is put in coincidence with center -f cross-point of eye-piece due to tilting of observing unit by means of adjusting aid. Target is removed and fiber optic is placed instead of it. Focusing unit is tightly connected with optical fiber.
EFFECT: simplified design; improved reliability, improved precision; widened range of laser radiation wavelength into optical fiber.
2 cl, 1 dwg