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ROCK IMAGER User's Guide | Appendix A: Optics Controls
This table explains how to use each of the optics controls, which are used during manual inspections.
See
on page 60 for more information.
Control
Imaging Methods
Description
Illumination
●
Visible
●
UV
●
Fluorescence
●
SLP UV
On the visible imaging method, the illumination list provides
you with various illumination patterns, including glancing, dark
field, and bright field illumination. With the UV imaging
method, the illumination button controls whether the LED UV
light source is on or off.
Condenser
●
Visible
●
SLP Visible
●
FRAP
The condenser collects light from the Köhler light source and
concentrates it onto the well being examined. Values range from
0 – 100%. At 0%, the iris is fully open, and a cone of light is
concentrated at a wide angle. At 100%, the iris is closed, and the
light is concentrated in a column of light as opposed to a cone.
Adjusting the condenser value can improve image contrast.
Increasing the condenser angle increases the contrast.
Polarizer
●
Visible
●
SLP Visible
This field describes the angle at which the polarizer lens is
projecting the light from 0 - 360°. Recommended settings are 0°
or 90°. At 0°, you are not using cross polarized imaging. At 90°,
you are using cross-polarized imaging. At 90°, if there is a crystal
in the FOV, the crystal will light up due to the crystal's
birefringence (if there is no crystal, the FOV will appear dark).
Bright Field
●
Visible
●
SLP Visible
●
FRAP
Bright field illumination passes light through the specimen under
the microscope so that the specimen appears dark against a
bright background. At 0%, the bright field light is turned off, and
at 100% the light is at maximum brightness.
Fluoro Light
●
FRAP
The fluoro light is the florescent light source. Changing this value
affects the fluorescence signal intensity. 100% is the most intense.
Laser
●
FRAP
Controls whether the laser, which bleaches the sample, is on or
off.