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31
The Micro Welder Experts
Microscope Infrared Filter
The Microscope Infrared Filter is an optical glass designed to
filter laser radiation of 1064nm. It has a slight gray color but is
perfectly transparent. It is placed inside the microscope. See
Figure 31.1. The purpose of this filter is to preserve the opera-
tor‘s eyes from leaks and to completely ensure that all laser
light is blocked from passing through the microscope. The filter
is opaque to the wavelength of 1064nm prevents any possibil-
ity of laser light passing through the microscope.
Weld Chamber Infrared Filter
This filter is an optical glass designed to filter laser radiation of
1064nm (see Figure 31.2). It has a slight green tint but is per-
fectly transparent. Operators should look through this window
any time they need to view inside the weld chamber, rather than
looking through the leather strips.
ATTENTION: If this filter should ever break, it is very important
to get it replaced with a new filter. To ensure safety, use only
original and approved spare parts from Sunstone Engineering.
Leather Strips Protecting the Chamber Opening
The opening to the weld chamber is covered with skirted leath-
er strips, which allow you to insert your hands and workpieces
into the weld chamber, while still blocking the laser from escap-
ing the weld chamber (see Figure 31.3). It is necessary to have
this protection installed on the welder for two main reasons:
• To prevent the laser light from escaping the weld
chamber and to shield the bright flash that occurs
during welding.
• To help retain shielding gas (argon) while welding, and
also allow the shield gas to dissipate after the welding
is finished.
The leather strips prevent laser light from leaving the chamber,
and at the same time helps improve the usage of shielding gas.
ATTENTION: If the leather strips should ever break, wear out, or
not provide full coverage, they should be immediately replaced
with a new set. To ensure safety, use only replacement parts
supplied by Sunstone Engineering.
Figure 31.1. Microscope Infrared Filter.
Figure 31.2. Weld Chamber Infrared Filter..
Figure 31.3. The leather strips at the front of the weld
chamber prevent laser radiation from escaping the
chamber while still allowing you to insert your hands and
workpieces.
