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Green Building - http://inhabitat.com - Students Develop Radar
Device to Help Blind People “See” Posted By Brit Liggett On June
4, 2010 @ 10:40 am In Design for Health,green gadgets,green
technology,humanitarian design | 3 Comments Students in Israel
at the Ben-Gurion University of the Negev  have developed new
technology  that allows blind people to “see” objects around
them through a simple radar system. The device consists of a
computer, two video cameras and a scanning light source that
audibly alerts the individual of objects that are close in
proximity. The system scans surrounding objects and their
distance from two points, much like the human eyes. Currently,
vision impaired people need either a sensor cane or a guide dog
in order to walk freely, both of which take up the use of one
hand. This invention could prove to change all of that. The
number of visually impaired people in the world is estimated as
between 40 and 45 million. Previous