Pseudo Collimated ~100mm Beams

Small micron size beams that are nearly collimated are ideal for many applications such as in spectroscopy and particle sizing
where you need to have a beam that is nearly the same size throughout the cell. Since a truely 100mm collimated beam is very
difficult to manufacture with diode lasers the next best thing is a Pseudo Collimated Beam.  In this method a diode laser beam
is nearly collimated over a long enough distance (i.e. it has a large depth of focus).

The Lepton II  or IV Series are ideal for achieving these small micron size beams.  The example shows a beam which is about
180mm in diameter at a distance of 250mm with about 50mm of nearly collimated beam.

Typical beam size versus distance are:

Distance	Pseudo Collimated Beam Size
  50mm	          ~38mm
100mm	          ~77mm
150mm	          ~110mm
250mm	          ~180mm

Appropriate optics are incorporated into the Lepton II or IV housing to generate these beam sizes without increasing the housing
size.  Check out our list of wavelengths and power levels for Lepton II and Lepton IV Series.  Call or email us with your requirements
for Beam Size, Distance from laser and application so that we can assemble the correct laser.

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Last updated on May 7, 2009