Bedside Touch Lamp

Ever wonder how these touch sensitive lamps function

? Touch technology in bedside lamps; do not have on and off switches. To turn the lamp on and to adjust the brightness, touching the lamp is required. Usually, these lamps have three brightness settings; either the first or last being the brightest. Circuits in these bulbs are operated by "duty cycle". The circuits are distributed equally with zero percent (no touch), 33 percent first touch, 66 percent second. and 99.99 percent on the third touch. If there are 2 bulbs, then it requires 2 touches from 50 to 100 percent circuit distribution per touch.

There are now four properties that explain how touch technology operates. Among the four, the last justifies the bedside lamps operation.

Temperature- our body is warmer than the surrounding. With the heat that our body produces, these buttons or switches can be turned on.

Resistance- because our body is 60 per cent water, it is enough to conduct a small amount of electricity. So when pushing a certain button, the circuit will function and the object intended to use will be turned on.

Radio reception- the bedside lamps have radio-wave receptions because our body can act as an antenna while touching these lamps. We generate energy thus, turning the lamp on.

Capacitance- it comes from the root word capacity. Generally, when lamps are not touched, they are able to hold some energy or electrons and when a person touched it, the energy they have can "fill up" the lacking electrons needed to power the bedside lamp.

Bedside Touch Lamp

By: Annie Sherwood

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