At present, LED lighting technology is becoming more and more mature, and the efficacy of high-power LED light source has reached 80lm/W or more, which makes energy-saving renovation of urban street lighting possible. LED street lights, especially high-power led street lights, are hitting the traditional street light market at a rapid rate.
High-power LED street lamps, as the name implies, are street lamps with a power of more than 30 watts and a new LED semiconductor light source. At present, the standard of LED street lamps is generally an average illumination of 0.48 for uniformity of road surface illumination. The spot ratio is 1:2, which is in line with road illumination. (The actual 1/2 center spot reaches 25 LUX, the 1/4 center light intensity reaches 15 LUX, the lowest light intensity 4 LUX at 16 meters, and the overlapping light intensity is about 6 LUX. Currently, the market street lamp lens material is improved optical material, and the transmittance is ≥93%. , temperature-38-+90 degrees, anti-UV ultraviolet light yellowing rate of 30,000 hours without change, etc. It has very good application prospects in new urban lighting. Dimming of depth, color and other characteristics will not It changes due to dimming. Solar LED street light refers to LED street light that uses solar silicon plate as power supply.
The current standards for high-power LED street lights are generally :
1. The conversion rate of light is 17%, (1000W per square meter of solar energy, the actual utilization efficiency is 170W)
2. At present, the street lamp lens material is an improved optical material with a transmittance of ≥93% and a temperature resistance of -38-+90 degrees.
3, LED street light lens, mainly used for LED street light lens, the spot is rectangular, the material is PMMA optical material, the transmittance is ≥93%, the temperature is -38-+90 degrees, the anti-UV ultraviolet light yellowing rate is 30,000 hours without Change, etc.
4. The average illuminance of the uniformity of road surface illumination is 0, 48. Spot ratio 1:2
5, in line with road illumination. (The actual 1/2 center spot reaches 25 LUX, the 1/4 center light intensity reaches 15 LUX, the lowest light intensity of 4 lux at 16 meters, and the overlapping light intensity is about 6 LUX.
6. It has very good application prospects in new urban lighting. Dimming of depth, and color and other characteristics do not change due to dimming.
7, adapt to humidity: ≤ 95%
8, quality assurance: 2 years
Despite the rapid development of LED street lights, the standard of led street lights is relatively lagging behind. Globally, LED street lights are not standard, and European standards like LED street lights are now available. In fact, the standards for LED street lamps in different regions are not the same in terms of indicators. The LED street lamps we have made must meet the requirements of the sales area in the standard. Therefore, the bidding LED street lamp project should thoroughly study the local LED street lamp standards. Will be in an invincible position in the fierce market competition.
What are the problems when integrating HB LEDs into a car?
HB, LED has a longer service life, generally it can use 50.000 hours or even longer, and it is also very suitable for any environment that maintains lighting for a long time. In this respect, the daytime running lights have been well proved. It is because of these characteristics that it also plays an important role in some new applications such as automotive head-up displays.
However, there are many challenges to integrating HB LEDs into automotive applications using today's integrated design techniques.
One aspect is the cost. As far as the component itself is concerned, the price of the LED lamp is higher than other lighting solutions, and this requires lowering the system-level cost of the LED solution to improve the reliability of the system.
Another aspect is efficiency. Efficiency must be increased to minimize power consumption. Because automotive components typically operate in high temperature environments, the ambient temperature around the engine can reach +105 degrees Celsius, which reduces the power consumption of the IED driver and avoids driver ICs. Or other devices that drive the module overheat.
Calcium fluoride crystal has high hardness, strong resistance to mechanical shock and thermal shock, wide light transmission range (190nm-10000nm), and good transmittance in ultraviolet, visible and infrared bands. Therefore, it is widely used in laser, infrared optics, ultraviolet optics and other fields. It can be used as electric infrared window, gas and liquid detection instrument, laser system, imaging system, etc.
Calcium Fluoride Window
Hanzhong Hengpu Photoelectric Technology Co.,Ltd , https://www.hplenses.com