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The
532nm green laser pointer is made of DPSS technique,
with the power range 1mW ~ 130mW, it is long beam ranges,
high brightness, high beam quality and low price. The
pointer is supplied by two C-size batteries.
The
red laser pointer is made of laser diode of 635nm or
650nm, with the output power 1mW ~ 10mW. It has three
functions: ball pen, laser pointer and ferule, and it
is low cost, pen size and powerful enough for larger
business presentations in large auditorium.
Laser
pointers are compact instruments consisting of a low-power,
visible light laser, used for pointing out features
on a projected visual display. They are often used in
training and other educational settings to highlight
data on a large screen, as well as in industrial settings
for checking machinery and parts for defects. Laser
pointers are generally available with projected light
in one of three colors, green, bright red (<650nm),
or blue (650nm+).
Laser
pointers are generally wand or pen-shaped and sized,
and therefore easily portable.Most types function using
batteries, although some AC plug-in types are available.
The obvious difference between the two is that the battery-powered
devices can be carried anywhere, while plug-in laser
pointers are limited by access to a power source.
The
output power of laser pointers is generally measured
in watts, and indicates the "strength" of
the laser beam. A watt is one joule of energy per second.
This does not necessarily correspond to "brightness,¡±
of the laser, which is wavelength dependent. A green
laser pointer will be brighter than a red laser pointer
of the same power because the human eye picks up green
better.
Care
must be taken when working with laser pointers. Some
styles, especially more powerful types, which correspond
to Class III and Class IV CDRH classification (Center
for Devices and Radiological Health, part of the Food
and Drug Administration, laser safety classification
scheme), can cause ocular damage if used incorrectly.
Laser pointers, even less powerful ones, should never
be pointed directly at anyone¡¯s eyes.
If
you need special configurations or wavelength of the
laser pointers,please contact Dream Lasers directly.
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