The emergence of blue LED Torch so that people can use down the line converted the phosphorescent material will be in part the higher energy blue light into other colors. LED Torch sources are only able to completely cover the CIE chromaticity curve all the saturated colors and a variety of colors and phosphorus of the organic LED can be virtually unlimited integration of any color.
In reliability, LED Torch half-life (ie, light output is reduced to half the initial value of the time) is about 10,000 to 100,000 hours. In contrast, the half-life incandescent light indicating type (here the half-life refers to the number of lamp failure half the time) is typically ranging from 10 million to thousands of hours, depending on the rated lamp current.
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The competitive incentive LED manufacturers to further expand their product type, and is actively seeking a significant competitive advantage LED applications. After LED Torch dot matrix display text began to be used, the background grid pattern with the lights and bar graph arrays. Digital display of the size and complexity continues to increase, from 2 digits to 3 or even 4, from 7 figures to be able to display complex combinations of text and images 14 or 16 array. 1980, manufacturers began to offer intelligent LED dot matrix display. In 1968, LED’s have made breakthroughs in research and development, the use of nitrogen-doped GaAsP technology to achieve the efficiency of the device 1 lm / W, and the ability to glow red, orange light and yellow light. By 1971, the industry has introduced with the same efficiency GaP green die LED. 1972, a small number of LED displays for watches and calculators. World’s first LED watch was originally sold in expensive jewelry stores, and its price is as high as 2,100 dollars. Almost at the same time, Hewlett-Packard and Texas Instruments also introduced a 7-segment red LED display with a calculator. 70 to the 20th century, due to LED devices in the home and office equipment in the large number of applications, LED prices plummet. In fact, LED is the main figures of that era and text display. However, in many commercial devices, LED displays also came from the fierce competition of other display technologies such as LCD,Led Torch, plasma and vacuum fluorescent tube display. There are many atomic electron energy levels, when electrons from high energy to low energy level transition, the electron energy is reduced by a reduction of energy is converted into photon emission out. Large number of these photons is a laser. 1. Number of Head spectacle to be moderate. Household generally not more than 12, use the battery in 2 to 3 as well, and then a little bit bigger waves, for other special needs may need ourselves. Of course, the general power Hight Power LED torch can not reach the number 12. |
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