Led exiter with modulator of lighting controlled signal with compensation of exposure of external temperature
SUBSTANCE: invention relates to exiters of light-emitting diodes and, in particular, is aimed at superimposing a signal for adding a property to an existing LED exiter. The device (200) is able to superimpose the overlay signal (digital or analogue) to the control signal (164) of the LED exiter (100), depending on the external control information (256). The control signal (164) is provided for LED exiter (100) at the input (105) of control signal. By superimposing the overlay signal, the device (200) modulates control signal (164) and provides a modulated control signal (164) for the same control signal input (105).
EFFECT: expansion of LED exiter functionality.
14 cl, 12 dwg
SUBSTANCE: invention relates to lighting devices. The device comprises a light-emitting-diode (LED) element placed in a cavity of translucent cabinet filled with liquid cooling medium. In liquid cooling medium there are solid-phase cabinet elements having luminophor and magnetic components with zero buoyancy in the above medium, and quantity and dimensions of these components allow free mutual sliding within the cavity of the translucent cabinet. The translucent cabinet is equipped with a device setting the cooling medium in motion by impact with an electromagnetic field.
EFFECT: improving light output and increasing service life of the LED element by improved efficiency in control of light flux and cooling of the device.
SUBSTANCE: invention relates to lighting engineering. A lighting instrument and a light-emitting element for acceleration of growth of plants. The instrument includes a single emission source in the form of a light-emitting diode that provides at least two emission peaks at the wave length interval of 300-800 nm, with that, at least one of the above emission peaks has width at half-height, which is equal to at least 50 nm. The above emission peaks of the light-emitting diode coincide with a spectrum of photosynthesis reactions of plants.
EFFECT: improving plant irradiation efficiency.
11 cl, 6 dwg
SUBSTANCE: as a light source, a lamp comprises light-emitting diodes mounted on an external surface of a body and connected by a flexible cable to a power unit, an O-ring optical lens covering the light-emitting diodes, a hollow radiator box represented by vertical edges made of a heat-conductive material. In addition, the lamp can be completed with a decorative dome.
EFFECT: creation of a LED lamp design with good convection cooling of the light-emitting diodes.
10 cl, 3 dwg
SUBSTANCE: illumination device (1) comprises, for example, diodes LED (L1, L2, L3, L4) with separate emission spectra. Detectors D1, D2, D3, D4) can generate a vector of measurement signals (S1, S2, S3, S4) which represent light output of one active light emitter. Further, based on a linear relationship obtained during the calibration procedure, the characteristic value of the light output of that light emitter (L1, L2, L3, L4) is calculated using the measurement vector, wherein said characteristic value is based on the decomposition coefficient of an individual emission spectrum on basic functions.
EFFECT: improved method.
25 cl, 6 dwg
SUBSTANCE: invention relates to instrument making, particularly to a method of making a luminescent panel. To achieve the result, rigid building blocks of the housing are used. An electroluminescent film, two transparent electrically conducting films, two power buses, two photoluminescent films and two insulating films are used. By continuous supply of the above mentioned components from rolls, a transparent adhesive layer is deposited on which electrically conducting buses are formed. The adhesive layer is deposited in form of narrow strips of buses. The adhesive layers are deposited directly in front of profile die holes.
EFFECT: wider functional capabilities.
16 cl, 9 dwg
FIELD: optical and nano-electronics, possible use as radiation source in optical electronics, optics and other industrial branches.
SUBSTANCE: injection light-emitting device has layers, forming p-n transitions, and consists of a series of hetero-epitaxial layers of dielectric and nano-crystalline silicon, grown on silicon substrate, each silicon layer consists of p-type and n-type areas with distinct division boundaries, and ohmic contacts are located on opposite edges of device.
EFFECT: creation of injection light-emitting device with lower costs, increased reliability and expanded field of application.
FIELD: luminescent materials.
SUBSTANCE: nitride coating precursor, in particular aluminum-, gallium-, or tin-containing metalloorganic nitride, is charged into reaction vessel 10a filled with electroluminescent phosphor, e.g. ZuS-Cu, and surrounded by heating means 30a using nitrogen as inert gas carrier. Precursor is passed through pipeline 32 open all over its length. Co-reagent, e.g. anhydrous ammonia is fed into lower part of vessel 12a through porous glass disk 12a. When vessel 10a is heated to 150-225°C, nitride coating precipitates on phosphor particles being in fluidized state. Phosphor bearing nonoxide coating is characterized by high brightness after 100 h use at high humidity.
EFFECT: enabled large-scale manufacture of phosphors.
3 cl, 2 dwg
SUBSTANCE: invention is referred to lighting devices and control of lighting devices operation. The result is obtained due to registration of the first and second values of phase angle for dimmer coupled to the power converter exciting load of solid-state lighting, at that the first, and second values correspond to in-series half-periods of line voltage input signal and difference between first and second value is defined. When this difference exceeds threshold difference specifying asymmetric waveform of the line voltage input signal, the selected corrective measure will be performed.
EFFECT: correction of misoperation and/or shutdown of power supply from load of solid-state lighting in order to eliminate undesired effects, such as twinkling.
20 cl, 13 dwg
SUBSTANCE: invention relates to the field of lighting engineering. A light-emitting diode light source (100) consists of an array (110) of red LEDs, an array (120) of blue LEDs covered with a luminophor, a colour point from mixed light coming from the array (120) of blue LEDs covered with the luminophor is within the limit range of a quadrangle of CIE chromaticity diagram, where coordinates of the quadrangle apexes are (0.375, 0.427), (0.390, 0.456), (0.366, 0.430), (0.38, 0.46) respectively, at that LEDs transient temperature for the array (120) of blue LEDs covered with the luminophor and array (110) of red LEDs is practically equal to room temperature and the ratio of lumen output of the array (120) of blue LEDs covered with the luminophor in regard to lumen output of the array (110) of red LEDs varies within the range of 4:1 up to 1.5:1.
EFFECT: increased efficiency of emitted warm white light.
10 cl, 4 dwg
SUBSTANCE: invention relates to lighting engineering. An electronic actuator (100) for solid-state lamp start-up is designed to receive the alternating-current voltage with the phase cutoff; receive from the alternating-current voltage with the phase cutoff of data on light regulation that defines the required level of light regulation at the lamp output; start up the solid-state lamp in the light-regulation mode at the level of light regulation corresponding to the required level of light regulation received from the alternating-current supply voltage with the phase cutoff. The actuator record input current; it comprises a lamp current control generator (130); a control device that controls the lamp current control generator, a rectifier (110) that rectifies the received alternating current supply voltage with the phase cutoff; a current sensor (150) that records an output current of the rectifier; a signal processor (160) that processes an output signal of the current sensor and generates an input signal for the control device (140).
EFFECT: regulation of light intensity.
9 cl, 13 dwg
SUBSTANCE: invention relates to the lighting module for electrical and thermal connection with power infrastructure, having at least one power source, at that each power source contains two electrodes. The lighting module contains the light source for the light emission, in it the light source is the heat source during the light emission, two electric contacts to ensure contact with the electrodes of at least one power source, by this the electric connection is ensured between the lighting module and power infrastructure; control system located between the light source and electric contacts to control the power supply to the light source, in which the lighting module contains the measurements system measuring the thermal resistance of the thermal connection between the lighting module and power infrastructure during making of the electric connection , and in which the control system is made with possibility to reduce power supply to the light source when the thermal resistance is above the pre-set value to protect the lighting module against overheating. Invention also relates to the method of lighting module protection against overheating.
EFFECT: improved operation reliability of the module.
15 cl, 5 dwg
SUBSTANCE: invention relates to lighting devices and control of operation of lighting devices. The result is achieved by that the system for control of the level of luminous efficiency of the solid-state lighting load operated by the illumination regulator includes the detector of phase angles and the load converter. The detector of phase angles is designed with a possibility of measurement of phase angle of the illumination regulator on the basis of rectified voltage from the illumination regulator and determination of the power control signal on the basis of comparison of the measured phase angle with pre-set first threshold. The power supply converter is designed with a possibility of supply of output voltage into the solid-state lighting load, and the power supply converter operates in the mode without feedback on the basis of rectified voltage from the illumination regulator when the measured phase angle is greater than the first threshold, and operates in the mode with feedback on the basis of the rectified voltage from the illumination regulator and a certain power control signal from the circuit of determination when the measured phase angle is less than the first threshold.
EFFECT: reduction of luminous efficiency in solid-state lighting load at low settings of the respective illumination regulator.
20 cl, 9 dwg
SUBSTANCE: invention refers to lighting engineering. The lighting block contains at least two channels of the light sources and exciter for light sources. The exciter includes DC voltage converter and control system to control current supplied to at least one of two channels as response to the control signal provided by the DC voltage converter. Preferably the feedback circuit is controlled by the switching device in DC voltage converter to maintain the light level ensured by the light sources at the required level regardless of voltage changes of the power source and load.
EFFECT: increased efficiency of the light source control to achieve the required illumination effect.
18 cl, 5 dwg
SUBSTANCE: invention is referred to lighting devices and control of the lighting devices operation. The result is attained due to determining of maximum and minimum angles of a dimmer (204) connected to a power converter (220) during the operation of a solid-state lighting load (240); and dynamic regulation of the output power for the power converter based on the determined maximum and minimum angles of the dimmer. The regulated output power of the power converter regulates the upper level of the light output by a load of solid-state lighting at the maximum phase angle so that the preset upper limit value is met and regulates the lower level of the light output by a load of solid-state lighting at the minimum phase angle so that the preset lower limit value is met.
EFFECT: control of the power converter in order to ensure an equal range of light control to the load of solid-state lighting notwithstanding the type of the dimmer.
18 cl, 12 dwg, 2 tbl
SUBSTANCE: invention relates to lighting engineering. Illumination device (1) contains at least one light source (50) of low power; input power supply cascade (20) fit for receipt of low alternate voltage from an electronic transformer (ET); buffer power supply cascade (30) having input (31) connected to output (29) of the input power supply cascade; excitation circuit (40) intended for excitation of light and receipt of power supply from the buffer power supply cascade. The input power supply cascade generates output current pulses in order to charge the buffer power supply cascade at relatively low frequency, and during each output current pulse the input power supply cascade consumes input current, output current always has current value bigger than the required minimum load for the electronic transformer.
EFFECT: reducing light blinking by improving compatibility between light sources and electronic transformer.
15 cl, 8 dwg
SUBSTANCE: invention relates to lighting. Result is ensured by that the lighting device contains multiple LEDs connected in series. In the lighting device the first set of LEDs has first type LEDs, having first output of the light flow decrease as first function of the junction temperature. The second set of LEDs has second type LEDs having second output of the light flow decreased as second function of their junction temperature that differs from the first function. At least one first type LED and one second type LED are connected in parallel to the resistors set with resistance depending on the temperature. The resistance temperature dependence stabilizes ratio of the first light flow output to the second light flow output at different junction temperatures of the first set of LEDs and second set of LEDs.
EFFECT: prevention of change of ratio of light flow output of various types LEDs as part of same lighting device.
13 cl, 11 dwg
SUBSTANCE: invention relates to lighting engineering. Lighting installation (1) comprises input pins (2) for connection to alternating current (AC) network; a circuit (10) of light-emitting diodes (LED) connected in series with input pins; rectifier (30) with input pins (31, 32) connected in series with LED circuit, controllable voltage source (40) with input pins coupled to output pins of the rectifier; in-series assembly of at least one auxiliary LED (51) and the second ballast resistor (52) coupled to output pins of the controllable voltage source. Voltage source comprises in-series assembly of the fist controllable resistor (46) and the second resistor (47) coupled in parallel to input pins; controllable semiconductor stabilitron connected in parallel to output pins, which has input pin (48) connected at connection point between two resistors; at that positive output pin is connected to positive input pin while negative output pin is connected to negative input pin.
EFFECT: simplified regulation of the device in regard to luminous power and luminous efficiency shift to lower colour temperature.
7 cl, 2 dwg
FIELD: mechanics, physics.
SUBSTANCE: device to excite electroluminescence consists of input unit connected in series with microprocessor unit, sinusoidal oscillation generator, amplitude-frequency response corrector, step-up transformer and exciting electrodes furnished with plates for the specimen to be placed there between. Note that the said exciting electrodes are optically coupled with the photo receiver connected with the ADC which, in its turn, is connected with the microprocessor unit. The latter is connected to the display unit and amplitude-frequency response corrector, while the sinusoidal oscillation generator is connected via a feedback loop with the microprocessor unit.
EFFECT: simpler design, smaller sizes, brightness correction in wide frequency range.
SUBSTANCE: fluorescent tube fitting device has a light-emitting diode element (4) which includes at least one electric starter element (4.1) connected to at least one phase conductor and also connected to at least one neutral wire at least through one conductor (4.2) having at least one light-emitting diode (4.3).
EFFECT: reduced need to replace fluorescent tubes in fittings and reduced electrical power consumption.
3 cl, 2 dwg