LED Light Sources, From Past to Present
No wonder today's innovations touch every area of our life. The best and most useful discoveries are devoted to cure and save people. LEDs stand out on this long list of innovative technologies. What can be more familiar to us than a simple light bulb? For decades we have used simple electric bulbs, but now they are rapidly being substituted by new LED tube light china.
What is a LED? LED - light-emitting diode - consists of a semiconductor diode. LED was discovered in 1927 by Russian scientist Losev, but enjoyed its practical application only in 1962, when the production of red light emitting diodes launched. One of the first LED indicators was used in calculators in 1968.
Gradually LEDs penetrated into many spheres of industry and medicine. Scientists developed very bright light sources based on super efficient LED bulbs, which at a higher current emit thousands of lumens. Now we can say that LED street lighting have more advantages than any other, including Halogen or Metal Halide light sources, as they produce more light per watt than other bulbs.
LEDs can emit light of an intended color without the use of color filters. Now, LED handles for medical endoscopes emit a very powerful white light. This light is "cleaner" and "whiter" than Halogen and stands near Xenon light sources, which helps during the most complex operations.
LEDs can be very small (smaller than 2 mm). Based on this feature, LED tube light (or LED handles) are becoming more and more compact. Now it is possible to find a very convenient and bright LED light source, which can completely substitute a Halogen light source during laparoscopic and other operations. Doctors don't need long wires. Everything is handy. You can easily take it and adjust light intensity and focus just with a slight touch of finger! LEDs can very easily be dimmed either by modulation or lowering the forward current. Now LED light sources have a light intensity switch to decrease or increase illumination easily.
In contrast to most light sources, LEDs radiate very little heat in the form that can cause damage to sensitive objects or tissues. Wasted energy is dispersed as heat through the base of the LED tube lights. This feature makes LEDs vitally important for the medical sphere, where it is necessary not to heat human organs or tissues.