Dalsa Spyder3 User Manual page 102

102
Noisy Output
Check your power supply voltage outputs for noise. Noise present on these lines can
result in poor video quality.
Dark Patches
If dark patches appear in your output the optics path may have become contaminated.
Clean your lenses and sensor windows with extreme care.
1. Take standard ESD precautions.
2. Wear latex gloves or finger cots
3. Blow off dust using a filtered blow bottle or dry, filtered compressed air.
4. Fold a piece of optical lens cleaning tissue (approx. 3" x 5") to make a square pad that
5. is approximately one finger-width
6. Moisten the pad on one edge with 2-3 drops of clean solvent—either alcohol or
7. Wipe across the length of the window in one direction with the moistened end first,
8. Repeat steps 2-4 using a clean tissue until the entire window has been cleaned.
9. Blow off any adhering fibers or particles using dry, filtered compressed air.
Horizontal Lines or Patterns in Image
A faulty or irregular encoder signal may result in horizontal lines due to exposure time
fluctuations; ensure that your exposure time is regular. If you have verified that your
exposure time is consistent and patterns of low frequency intensity variations still occur,
ensure that you are using a DC or high frequency light source.
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acetone. Do not saturate the entire pad with solvent.
followed by the rest of the pad. The dry part of the pad should follow the moistened
end. The goal is to prevent solvent from evaporating from the window surface, as this
will end up leaving residue and streaking behind.
Spyder3 Color Manual
DALSA