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Two common light sources for shadowless lamps

2020-03-13

There are two common light sources for surgical lamps: halogen bulbs and LED bulbs.

Halogen bulbs are a variant of incandescent lamps. The principle is to inject halogen gas such as iodine or bromine into the bulb. At a high temperature, the tungsten wire and the halogen chemically act, and the cooled tungsten will condense from the head on the tungsten wire to form a balanced cycle to prevent premature cracking of the tungsten wire. Thus halogen bulbs last longer than incandescent lamps. The principle of illumination of all incandescent lamps is based on the principle of heat-induced illumination and the principle of thermal radiation. A simple incandescent lamp is to introduce sufficient current into the filament. When the filament heats up to incandescence, it will illuminate, but the incandescent lamp will have a short life.

A light-emitting diode is simply referred to as an LED. It is a type of semiconductor diode that converts electrical energy into light energy. Compared with incandescent bulbs and xenon lamps, LEDs are characterized by: The operating voltage is very low; the operating current is small; the impact and shock resistance are good, the reliability is high, and the life is long; the brightness of the light can be easily adjusted.

LED is called the fourth generation of light source. It has the characteristics of energy saving, environmental protection, long life, low power consumption, low heat and high brightness. The surgical Shadowless Lamp can be widely used in various hospitals, which provides great help for the smooth operation of the operation.

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