Lamp And Light Blocker; How To Prepare Slides - scope LSU VL-7EX II User Manual

Handheld Microscope Users Guide

Lamp and Light Blocker

You may need to provide additional lighting to get the best image of your object, especially if it's
a water sample. Use the lamp and light blocker included in your scope kit to achieve optimal
lighting. Slide the light blocker onto the lamp, place the lamp over your sample, and adjust the
position of the lamp and/or blocker until you get the desired image.
The light blocker allows light to strike the object from sides, but not directly overhead
Water sample without lamp
Water sample with lamp and light blocker. Colors
in the sample are much more clearly seen.

How to Prepare Slides

These hand-held scopes are not water resistant, so care must be taken when viewing aquatic
samples. There are many activities that can be done with the scope that involve wet samples
(pond water, cheek cells, etc.), so detailed instructions are included below on how to make
slides. For elementary students, we recommend using either plastic Petri dishes (30-60 mm
diameter) or deep well slides (described below). Both are included in the Scope Manual
Material Kit, and they also can be ordered from a variety of science education supply catalogs.
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