Tubular Skylights from Entech Solar

Entech Solar is a developer of concentrating solar systems. It also supplies tubular skylights that redirect natural sunlight from the rooftop to the work area through a reflective tube. Tubular skylights capture ambient light and provide exceptional illumination even during days when the sun is low.

The tubular skylights from Entech Solar redirect sunlight and this redirection is called collimation.  The collimation feature in the tubular skylights helps to prevent light output outside the required work area. The rays of natural light enter the tubular skylights from different directions at an incidence angle from 0 to 90 degrees. The natural light rays after a few reflections are collimated to smaller angles of less than 30 degrees. This process enables the skylights to control the output angles of natural light rays to provide output light below the skylight.

The collimating process of the tubular skylights, from Entech Solar, allows the lighting system to control the lighting pattern inside the work area. When a tubular skylight is fixed over the desk, it will light up only the desk and not other objects in the room or office. With an exceptional optical efficiency, Entech Solar’s tubular skylights send natural light to the work area. The collimation feature enables skylight to utilize diffusers to reduce glare and illuminate the work area. Diffusers can be placed at the top and bottom of the skylights for full-spectrum illumination. The tubular skylights replace electrical lighting and reduce electricity bill.

Source: http://www.entechsolar.com