The principle of LED luminescence spectrum refers to the pattern in which the dispersed monochromatic light is sequentially placed according to the wavelength (or frequency) after the LED is split by a dispersion system (such as a prism, grating), which is called the optical spectrum. Simply put, the spectrum shows the distribution of the intensity of light relative to the wavelength of light. Through the research on the technology principle of the luminescence spectrum of the LED panel light, the luminous power of the LED panel light can be effectively improved, and the energy efficiency of the LED panel light can be improved. The following will introduce the technical principle and related common sense of the luminescence spectrum of the LED panel light.
The luminous spectrum of LED panel light products is usually monochromatic LED, such as: blue LED with a peak wavelength of 470nm as a mountain plan, with a short peak wavelength in the ultraviolet area and a long peak wavelength in the green area as light The determination limit of strength. The luminescence spectrum of the incandescent lamp, its luminous intensity is widely distributed in the blue region of more than 400nm to the near-infrared region of more than 700nm, and the luminous intensity can also be observed in the ultraviolet and infrared regions. For fluorescent lamps, the luminous wavelength of the phosphors used in combination is the peak of the spectrum. In contrast to the usual peaks of red, green and blue LEDs, the spectrum of white LEDs is quite different. For example, there will be two peaks of luminous intensity in the blue area and the yellow area, maybe there will be three peaks in the blue area, yellow area and red area, and even more peaks will appear.
The white light of the white LED is obtained by combining light of multiple wavelengths. For example, when a blue LED and a yellow phosphor are combined, the peaks appear in the blue area and the yellow area. In addition, the peak value according to the luminous intensity of the blue LED is sharper, and the peak value according to the phosphor is steeper. When LEDs are used in common energy-saving and environmentally-friendly lighting fixtures such as LED panel lights, white LEDs with a wide range of emission spectra in the visible light field are most anticipated by the market. The biggest reason is that it is close to the normal natural light, that is, in the normal daylight environment, the color displayed by the object and the length of the natural light ignited by the sunlight are also very close to our natural feelings.
