LED - Light Emitting Diode or LED | Lampa.bg
The LED is a semiconductor diode which consists of areas with positive and negative charge carriers and the pn junction and emits incoherent light in a narrow range, when it occurs in an electric current. LED contains lighting for film one or more light-emitting crystals, arranged in a housing with a lens that distributes the light beam. The color of emission of the LED is determined by the composition of the semiconductor material used, and the dopant. The color is often given in "nm", lighting for film which is the wavelength of light. LEDs are not perfectly monochromatic and some may emit in a narrow range of the spectrum. Type of LEDs
LEDs are the most different types - in terms of composition, by frame number in crystals, etc. - But here, especially considering the number of crystals in one LED. Generally we can say that LEDs are ednokristalni and mnogokristalni. Ednokristalen LED means that the housing is located a crystal that emits light. Such models are generally power up to 3W. Mnogokristalen LED is such that within a housing there are more than one crystal, lighting for film emitting light. Such models are rated for over 10W and RGB LEDs. An important lighting for film point here is that the smaller crystals are in a diode, the more readily accomplished its cooling, respectively, the easier it is to achieve a high ratio Lm / W. For this reason, power 1W LEDs with reaching values of 120 or more lumens per watt (there are experimental models, approaching values of 200 lumens per watt), and those with power 10W and more rarely reach 100 lumens per watt. Power LED and power of the lamp
In principle, the power of the LED lighting fixtures is determined by the power of the LED installed therein, and the efficiency of the power supply incorporated therein. This means that it is perfectly normal luminaire with LEDs installed power 20W have power consumption 22.3W, if you installed a power supply with 90% efficiency. In articles branded LEDPOWER we strive to use power supplies lighting for film with maximum efficiency to achieve maximum energy saving. During operation of LEDs and LED lighting
Most - generally life of the LEDs or the time of their use is in the range of 50000 to 100000 hours. This is by far more than the lives of other types of lighting - from 3000 to 16,000. Naturally, these values are achieved while maintaining optimal operating lighting for film temperature of the LEDs. This temperature varies lighting for film with different types of LEDs, but generally speaking it can be said that the temperature at the core of the crystal does not exceed 60 C. Each diode which operates at a higher temperature aging more quickly, its properties deteriorate over time and eventually burn significantly earlier. On the other hand the time of operation of an LED lamp is dependent, as the life of the light emitting diodes installed in it, and so the life of the power supply system for a better cooling of the LEDs, the quality of assembly of the device and various other factors. All this means that the use of LEDs in one Osvetitleni body do not necessarily during use 50000-100000 hours. lighting for film Angle
Normal angle of the LEDs is 105 - 120 without lighting for film the use of additional optical systems, depending on their type. This parameter largely determines the angle of illumination of LED lighting. To achieve a smaller respectively larger angles of light is necessary to install additional optical systems lighting for film - reflectors and lenses. Lighting Luminous Flux and Intensity
Light is a physical quantity characterizing lighting for film the relationship between the luminous flux incident on a surface, and the area of this surface. The unit of luminance SI is a luxury means by lx (1 lux = 1 lumen per square meter) luxury lighting creates a luminous flux of one lumen falling on one square meter surface, lighting for film ie 1 lx = 1 lm / m2
Lumen (symbol lm) is the unit of luminous flux in the system SI. One lumen is equal to the luminous flux emitted by the point-source in a solid angle of 1 steradian at an intensity of 1 candela light.
Candela (symbol cd) is a unit for measuring the intensity (strength) of the light. It is equal to the intensity of light in a given direction of a source of monochromatic radiation. The power of light emitted by a candle lighting for film is equal to one example candela (Latin candela lighting for film candle is), so in the past, this unit of measurement is called "candle". Today this term is outdated and not used.
Lumen per watt lm / W - the most important lighting for film characteristic of an LED. This parameter indicates what is the luminous flux emitted by the light source at 1 Watt power consumption. The greater is
The LED is a semiconductor diode which consists of areas with positive and negative charge carriers and the pn junction and emits incoherent light in a narrow range, when it occurs in an electric current. LED contains lighting for film one or more light-emitting crystals, arranged in a housing with a lens that distributes the light beam. The color of emission of the LED is determined by the composition of the semiconductor material used, and the dopant. The color is often given in "nm", lighting for film which is the wavelength of light. LEDs are not perfectly monochromatic and some may emit in a narrow range of the spectrum. Type of LEDs
LEDs are the most different types - in terms of composition, by frame number in crystals, etc. - But here, especially considering the number of crystals in one LED. Generally we can say that LEDs are ednokristalni and mnogokristalni. Ednokristalen LED means that the housing is located a crystal that emits light. Such models are generally power up to 3W. Mnogokristalen LED is such that within a housing there are more than one crystal, lighting for film emitting light. Such models are rated for over 10W and RGB LEDs. An important lighting for film point here is that the smaller crystals are in a diode, the more readily accomplished its cooling, respectively, the easier it is to achieve a high ratio Lm / W. For this reason, power 1W LEDs with reaching values of 120 or more lumens per watt (there are experimental models, approaching values of 200 lumens per watt), and those with power 10W and more rarely reach 100 lumens per watt. Power LED and power of the lamp
In principle, the power of the LED lighting fixtures is determined by the power of the LED installed therein, and the efficiency of the power supply incorporated therein. This means that it is perfectly normal luminaire with LEDs installed power 20W have power consumption 22.3W, if you installed a power supply with 90% efficiency. In articles branded LEDPOWER we strive to use power supplies lighting for film with maximum efficiency to achieve maximum energy saving. During operation of LEDs and LED lighting
Most - generally life of the LEDs or the time of their use is in the range of 50000 to 100000 hours. This is by far more than the lives of other types of lighting - from 3000 to 16,000. Naturally, these values are achieved while maintaining optimal operating lighting for film temperature of the LEDs. This temperature varies lighting for film with different types of LEDs, but generally speaking it can be said that the temperature at the core of the crystal does not exceed 60 C. Each diode which operates at a higher temperature aging more quickly, its properties deteriorate over time and eventually burn significantly earlier. On the other hand the time of operation of an LED lamp is dependent, as the life of the light emitting diodes installed in it, and so the life of the power supply system for a better cooling of the LEDs, the quality of assembly of the device and various other factors. All this means that the use of LEDs in one Osvetitleni body do not necessarily during use 50000-100000 hours. lighting for film Angle
Normal angle of the LEDs is 105 - 120 without lighting for film the use of additional optical systems, depending on their type. This parameter largely determines the angle of illumination of LED lighting. To achieve a smaller respectively larger angles of light is necessary to install additional optical systems lighting for film - reflectors and lenses. Lighting Luminous Flux and Intensity
Light is a physical quantity characterizing lighting for film the relationship between the luminous flux incident on a surface, and the area of this surface. The unit of luminance SI is a luxury means by lx (1 lux = 1 lumen per square meter) luxury lighting creates a luminous flux of one lumen falling on one square meter surface, lighting for film ie 1 lx = 1 lm / m2
Lumen (symbol lm) is the unit of luminous flux in the system SI. One lumen is equal to the luminous flux emitted by the point-source in a solid angle of 1 steradian at an intensity of 1 candela light.
Candela (symbol cd) is a unit for measuring the intensity (strength) of the light. It is equal to the intensity of light in a given direction of a source of monochromatic radiation. The power of light emitted by a candle lighting for film is equal to one example candela (Latin candela lighting for film candle is), so in the past, this unit of measurement is called "candle". Today this term is outdated and not used.
Lumen per watt lm / W - the most important lighting for film characteristic of an LED. This parameter indicates what is the luminous flux emitted by the light source at 1 Watt power consumption. The greater is
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