Valoputkelle

Valoputkelle is a Finnish term that translates to "light pipe" or "light tube." It refers to a passive optical device designed to transmit natural sunlight from an exterior location into an interior space. This is achieved through a reflective tube that captures light at the rooftop or wall and channels it downwards. The light is then diffused into the room through a ceiling fixture, providing illumination without the need for electricity.

The primary benefit of valoputkelle is energy savings. By harnessing natural light, it reduces the reliance on artificial lighting, thereby lowering electricity consumption and associated costs. This also contributes to a more sustainable building design by decreasing the carbon footprint. Valoputkelle systems can be particularly effective in areas that receive ample sunlight but lack direct window access, such as hallways, closets, bathrooms, or central rooms within a building.

Installation typically involves a light-collecting dome on the exterior, a highly reflective tube that can be cut to length, and a diffuser panel on the interior ceiling. The reflective lining of the tube is crucial for maximizing light transmission. Different sizes and configurations are available to suit various building types and lighting needs. While primarily used for residential and commercial buildings, they can also be found in industrial settings. The effectiveness of a valoputkelle is influenced by factors such as the intensity of sunlight, the length and angle of the tube, and the efficiency of the reflective material.