User`s guide

Preparing for Imaging 4
Agilent 5500 SPM User’s Guide 86
Using the Video System
The Agilent 5500 SPM includes a USB-based video system for viewing
the tip and sample. The video system’s optics and optics in the scanner
together provide optical magnification of 3.8X - 24.3X to the camera.
The video system’s illuminator is a separate box (Figure 59) connected
to the video system by a fiber light pipe. The light pipe can be separated
from the illuminator and/or optics by loosening the knobs at either of its
ends. Turn on the illuminator with the switch on the front of the
illuminator box. Increase intensity by turning the Illumination Level
knob clockwise, or decrease it by turning it counterclockwise.
Figure 59 Turn on the illuminator and adjust intensity
NOTE
The video system camera automatically adjusts to the contrast level.
Above a certain level turning up the illumination will no longer have any
effect, as the camera will compensate to counteract the increased
intensity.
NOTE
For critical measurements use the video system to align the sample, then
turn off the illuminator to minimize system noise.