At first sight it could sound as the most useless
invention in the world. Thinking in the
mirror that we have in our bathrooms or bedrooms, who cares how exact their reflexes
are? But what happen in situations where
an accurate reflex is needed?
If you have driven a car—or travelled in the passenger
seat—you should have notice the inscription in the side mirrors “objects are
closer than they appear.” This is
because the curve surfaces of those mirrors, designed for giving the driver a
wider view, produce that distortion in the depth perception, increasing the
risk of having a crush while you are driving or parking your car. A flat mirror, on the
other hand, gives a more accurate perception of depth, but it has a blind spot
just beyond driver´s left shoulder, which seems to be less important, due to
U.S. regulation obliges car manufactures install flat side mirrors in their
cars.
Andrew Hicks, a
mathematician at Drexel University, discovered a wide view mirror
without distortion or blind point. After years of investigation, Hicks
developed a mirror with a field of view of 45 degrees (simple mirrors have a 15
to 17 degree field of view.)
This new technology is
still in testing, but in a couple of years, it will be the car accessory of the
future.
To watch the full
article, please visit https://www.scientificamerican.com/article.cfm?id=patent-watch-wide-angle-non-distorting-mirror
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