Define abbe condenser of microscope, Biology

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Define Abbe Condenser of Microscope?

It is present beneath the stage, as shown in Figure. It collects and focuses a cone of light on the slide. Its position can be adjusted vertically to regulate the light passing on to the specimen.

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It also has iris diaphragm, a shutter that is also used to adjust the amount of light entering into the lens system.

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