Thursday, February 15, 2007

Today we'll talk more about inverted microscopes. Inverted microscope is one of the versions of a compound microscope.Compared to Upright Microscopes, inverted microscopes look up at the specimens. Inverted microscopes are designed to be used only when specimens are very large or heavy or they are influenced by gravity. Inverted microscopes are used to look at materials, cell culture, etc. These types of specimens show the two uses for inverted microscopes. Materials specimens can be large and heavy at the same time, so they need large, fixed stages that are common for modern inverted microscopes. Cell culture and aquatic specimens collect on the bottom of their containers, so the only way to see these specimens is to look up through the bottom of the container. Inverted microscopes come in two sizes: routine and research. The routine size is the smaller one. It is designed for low to medium powers only, so it may not have a fine focus. Its stage may isn't as versatile, and it doesn't accept cameras as easily as a research inverted. The research inverted is designed to do everything you could ever think of. All research inverted microscopes can be equipped for Kohler illumination. These are large, expensive and complex microscopes that can do a wide range of things. If you are doing materials work, you will probably use a research inverted without a transmitted illuminator.