The principle of a desk lamp is to use a light source driven by electrical energy to emit light, which is scattered and shielded by a transparent lamp, making the light softer and less dazzling. Specifically, the interior of a desk lamp usually contains three parts: the power supply part, the bulb part, and the lampshade part.
1. Power supply part: Desk lamps are usually powered by an AC power supply and connected to the home power grid through a socket. When the current enters the desk lamp, it is converted into a voltage and current suitable for the operation of the desk lamp through a power adapter. The adapter also plays the role of regulating and protecting the power supply.
2. Bulb part: Common types of bulbs for desk lamps include fluorescent lamps, LED lamps, etc. These bulbs have conductive materials inside. When current passes through the conductive material, electrons and positive ions collide, thereby releasing energy. The release of energy causes the fluorescent powder or semiconductor material on the surface of the bulb to emit light,
3. Lamp part: The lamp of the desk lamp plays the role of shading and scattering light. Generally, the lamp is made of transparent or translucent materials to allow light to pass through and avoid glare. The shape and material of the lamp will also affect the scattering of light. Different designs can achieve different lighting effects, such as local lighting and overall lighting.
The principle of the desk lamp is to convert the current of the household power supply into a suitable voltage and current through the adapter, and then release energy through the bulb to emit light, and finally the lamp will scatter and shield it, making the light soft and suitable for lighting.
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