Laser Pointers for Presentations and Teaching
Laser pointers are very popular amongst business professionals
and teachers who use these pointers when giving presentations
and teaching in front a group of people. However, these pointers
are not always safe and sometime they fall into the hands of the
wrong people and they get misused. There have been many reports
of the misuse of laser pointers in newspapers. This is around
the time when they were first becoming popular as children were
buying them to play with them. They were being used in the wrong
way. The newspapers were reporting concerns over the safety of
laser pointers. Reports showed that there are certain properties
of laser radiation that can cause damage.
Laser pointers themselves are devices that produce radiation
with unique properties. When the radiation that is emitted by a
source can be detected by the eye, it produces a sensation of
vision. When a person looks at a laser pointer they see a red
light being emitted from the front of the pointer. It is this
red light that has so many people worried.
The laser pointers that are being used by most trained
professionals today are lightweight and portable, they are
low-powered and usually battery operated. They are hand held
devices. The first laser pointers that were being produced were
commonly all the same shape. There was a simple straight red
line. However, when these pointers became more and more popular,
creators of laser pointers began thinking of new and interesting
points that the could use. Now you can get a laser pointer that
is an arrow shape or a heart for instance. Some pointers will
come with a set of changeable tops that can be used when desired.
Over the years people have become more and more concerned about
the safety of the laser pointer. It has been found that when the
laser point is shone directly into the eye then there could be
some damage to the eye itself. The risk of permanent eye damage
is small, there will be what is a called a dazzling effect in
the eye. This may last for seconds or several minutes. It is
never a good idea to shine the laser pointer directly into
anyone's eye