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Visual system Light and color
Thanks
to our visual organ, the eye, we can detect Light. The eye is
composed of a complex system that is sensible to light changes,
capable of transforming these impulses into electrical impulses.
The
interior of the eye is a dark cavity that has to avoid that light
enter through and reflections and illusionary images be produced.
The pupil is an opening that permits light pass into the interior o
the eye. It is controlled by the iris which is the muscle that
controls it to making the pupil dilate or contract according to light
exposure. The iris at the same time is covered by the cornea, and
the lens of the eye is situated behind the iris. This lens has a
function of focusing the light into the retina, which acts like a
screen. The retina converts these images to neurological signals.
The
essential factors in the conditions that affect the vision are the
distribution f the light and the contrast of the luminance. The
mission of LuxinTec is
to bring together its technology to illumination and to combine the
light with the objects that form a daily part of our lives.
There
are two types of light sensitive cells in the retina, the cones and
the rod cell. The rod cells are used for the vision in black and
white, and they are concentrated in the sides of the retina. The
cones are used for colour vision and are concentrated in the center
of the retina. There are three types; sensitive to red, green and
blue light.
The
visibility of an object can be altered in many ways. One of the most
important is the contrast of lighting due to factors of reflection,
the shadowing or of the objects own colours and the factors of colour
reflection. What the eye actually perceives are the differences in
luminosity
between an object and its environment or in different parts of the
same object.
 
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