HID和LED之间的差异

隐藏了vs led

Illuminating the surroundings in the night has always been a major challenge for the humans. For thousands of years fire was used to light the night of the men, but with the industrial revolution the newer energy sources were employed, and electricity was at the forefront. Converting electric energy into light was first solved by the inventor Thomas Alva Edison, who built the incandescent bulb. Later newer methods were found to convert electricity, and devices that perform this task are called the electric lamps. HID and LED are two types of electric lamps.

HID代表高强度排放，LED支架是发射二极管的。两者都是流行的光源，在许多应用中都广泛使用。但是，两者的操作和性能显着不同，并在绩效和许多其他因素方面使它们与众不同。

关于隐藏的更多信息

隐藏是一种弧形灯。顾名思义，隐藏着灯通过管中包含的气体之间的两个钨电极之间的电排放来产生光。该管通常由石英或熔融氧化铝制成。该管中既充满了气体和金属盐。

The electric arc between the tungsten electrodes is very intense that the gases and the metal salts inside the tube instantly turn into plasma. The discharge of the electrons in the plasma excited to a higher energy level by the energy from the arc gives the distinctive light with higher intensity. This is because a higher portion of the electrical energy is converted into light energy in the discharge process. Compared to incandescent and fluorescent lamps, HID lamps are brighter.

根据要求，管内使用了不同的物质。具体而言，在操作过程中蒸发的金属决定了HID灯的大多数性能。汞是第一个用作物质并商购的金属。后来，还产生了钠灯。汞灯具有蓝光，钠灯具有明亮的白光。这两种灯都用作实验室设备作为单色光源。

Later, mercury lamps with lesser blue light also were developed, but both the mercury and sodium lamps are now being replaced by the metal halide lamps. Also, radioactive isotopes of Krypton and Thorium mixed with argon gas are used to improve the characteristics of the lamps. Special protective measures are taken to prevent the α and β radiation, when these isotopes are included in the tubes. The arcs of these lamps generate a considerable amount of UV radiation and UV filters are also used.

当在大型膨胀时需要高强度的光强度时，使用HID灯。它们通常用于大型开放建筑中，例如体育馆，仓库，机库以及需要照明的开放区域，例如道路，足球场，停车场和游乐园。HID灯也被用作汽车的前大灯和水下潜水中的光源。

有关LED的更多信息

引领stands for Light Emitting Diode, and as the name implies it is a semiconductor diode in which the diode element emits light (photons) when current passes through. First used as display lights, LED appeared in 1962 as standard electrical components. Now LEDs are used as lamps too.

Earlier in the 1960’s when the LEDs were new, they were highly expensive and were used in expensive equipment such as laboratory equipment only. This was due to use of silicon for producing LEDs. But later Gallium Arsenide was introduced, and the production cost and hence the prices came down. We can now see LEDs in every electronic device as display lights.

引领s have recently been adapted for lighting large areas. With the developments in the technology, semiconductor types are manufactured that can produce light with a greater intensity than the previous ones. They are now used to illuminate rooms and other relatively smaller open spaces. They are also used as backlight of the LCD displays.

隐藏了vs led

• HIDs are arc lamps and produce high intensity light that can be used to illuminate large areas. LEDs are semiconductor diodes that emit light when a current is passing through and has a lower intensity of light compared to HIDs.

• HID lamps take a few seconds to obtain maximum brightness (time is taken to form the plasma) while LEDs gives away full brightness instantly.

• HID lamps are fragile and contain filaments or sensitive electrodes, therefore, needed to be handled with care. LEDs are covered in solid translucent or transparent plastic, therefore, can be handled and subjected to rough use.

• HIDs are less durable, owing to their mechanical nature of the substances used, but the LED has a much longer operating lifetime.