Keep the lens from having condensation form on it.
The function of the condenser in a microscope is to concentrate the light on the specimen. The condenser is one of the main parts of the optical system in a microscope.
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The function of the condenser is to concentrate the light on the object
function of iris diaphragm
The substage condenser on a microscope gathers the light from the microscope's light source. It distributes the light evenly over the entire view field.
the condenser is lowered
The function of a condenser lens is to focus the light onto a specimen. Condenser lenses are most useful at the highest powers of 400 x and above. Microscopes with a condenser lens render a sharper image than those with no lens. These lenses are able to move up and down.
condenser
Condenser focus
condenser
The part of the microscope is called the Condenser
Equipped on the Condenser of the microscope, the iris diaphragm is a shutter controlled by a lever that is used to regulate the amount of light entering the lens system.