“A cold cathode lighting system is a type of lighting technology that uses cold cathode tubes to produce illumination. Unlike traditional incandescent bulbs or fluorescent lamps, cold cathode lighting doesn’t rely on a heated filament or gas discharge to create light. Instead, it operates through a process called cold cathode emission.

Here’s how a cold cathode lighting system works:

Cathode Material: The cold cathode tube is typically made of glass and contains a cathode material such as phosphor-coated metal or rare-earth elements.

Vacuum Sealed: The tube is evacuated and sealed to create a vacuum inside it, which means there is an absence of air or gas within the tube.

High Voltage Power Supply: A high voltage power supply is connected to the cathode and anode electrodes within the tube. The cathode is the negative electrode, while the anode is the positive electrode.

Electron Emission: When the high voltage is applied to the cathode, it causes the emission of electrons from its surface. These electrons are accelerated towards the anode.

Collision with Phosphor Coating: As the accelerated electrons collide with the phosphor-coated inner surface of the tube, they transfer their energy to the phosphor material.

Light Emission: The phosphor material, upon receiving energy from the electrons, emits visible light in response. This is how the cold cathode tube generates light.

Colour Output: The type of phosphor used on the cathode’s inner surface determines the colour of the light emitted. Different phosphors can create various colours, allowing for the production of coloured lighting.

Cold cathode lighting systems have a few advantages over traditional lighting technologies. They tend to be more energy-efficient and have a longer lifespan. Additionally, they are less prone to flickering and can provide a more consistent and stable illumination. Due to these benefits, they are commonly used in various applications such as decorative lighting, backlighting for LCD displays, neon signs, and accent lighting in buildings and commercial spaces.”