Light enters the eye through the pupil and the retina focuses and transmits the information we see to our brain through a nerve which allows our brain to process the visual information. It is hard to describe lighting and illumination as each person’s sight and what they see is subjective.
The actual measurement of light must take into account the way that the eye is programmed to see, and for our purpose, programmed to see light at night.
The retina is made up of cones and rods. The cones create a synapse which allows humans to see detailed central vision (color), to read, and to see objects for security. The rods are highly sensitive to light, allowing them to respond in dim light and dark conditions; however, they cannot detect color.
When referring to human sight under light at night, we must keep the color of the light close to a natural color and provide just enough light so that the cones are still activated to see objects. If the light is too bright, the retina will naturally close up and the cone cells will not be activated, not allowing the human eye to see objects clearly. In addition, if the light is yellow the human eye will not be able to perceive the correct color of the objects.
SEPCO solar lighting systems takes theses factors into consideration. SEPCO’s system uses the best lamp color to allow the perceived color to be to the truest color. We also provide uniform illumination at a level that is comfortable and allows the eye to naturally focus and not squint. We use the perfect illumination levels and a low min to max ratio which creates a nice even illumination.