Dear MEL Topic Readers,
‘Autofocus’ glasses can change their lenses in real time
People who need both clearer distance and reading vision often wear eyeglasses
with bifocal lenses. The top part of the lens is designed for distance vision, suitable
for walking or driving, and the bottom part is prescribed for near vision, like
reading. There is a distinct segment line between the two areas. Varifocal
lenses offer a more continuous, gradual change in prescription from distance at
the top to near at the bottom without segment lines. The former was invented in
the late 18th century, and the latter appeared in the 1950s. In the
meantime, most cameras, including the ones in smartphones, automatically adjust
focus. Autofocus (AF) works by using sensors to analyze incoming light and a
processor to adjust the lens until the sharpest possible image is achieved. Now
is the time for eyewear innovation. A Finnish eyewear company is preparing to launch
smart glasses with lenses that automatically adjust focus for the wearer and
the situation.
Read the article and learn about eyewear that adjusts focus automatically.
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