© 2011 Thorlabs
63Operating the Beam Profiler
There are 3 different color scale types available:
- Logarithmic is recommended to view lower intensity values with a good resolution
- Linear
- Quad offers a better resolution for higher intensity values.
User-made Color Scales
If a certain color scale is required it is possible to create an own color scale which
can be loaded automatically by starting the application. To do so a few things have
to considered.
The application loads valid *.lut files from the folder
...\My Documents\Thorlabs\Thorlabs Beam\LUT
A valid *.lut file is an ordinary text file with nine columns and 256 rows. Values have
to be tab-separated. The first three columns have 256 entries, the last six columns
only 128. Each value represents a 8 bit intensity (0- 255) of R(ed), G(reen) and B
(lue), respectively.
The first three column represent the linear scale of a user-made color scale, the next
three columns the logarithmic scale and the last three columns the quadric scale.
Such a color scale could look like this (ignore the first two rows):
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