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A diaphragm
The diaphragm on a microscope is there so one can adjust the amount and intensity of light that gets projected up into the slide. The diaphragm is a rotating disk located under the stage. Not all microscopes have one.
diaphragm
The objective and the diaphragm are the parts that increase magnification on a microscope.
The Mirror to be exact and the Diaphragm specifically the Iris and Disc Diaphragm
The light diaphragm
The light diaphragm
The light diaphragm
The Diaphragm of the microscope regulates the amount of light shown.
A diaphragm regulates the amount of light entering the microscope. Stage opening allows light to pass through the stage of the microscope.
The condenser and iris diaphragm.
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.
This iris diaphragm of a microscope contains the amount of light that can enter through to the specimen. If the condenser iris diaphragm is open, the image will be bright; if it is closed, it will be dim.
The diaphragm of a microscope is used to control the amount of light passing through the specimen. By adjusting the diaphragm, you can regulate the brightness and contrast of the image, helping to improve visibility and clarity.
The light diaphragm
The Iris diaphragm in the condenser. (the lever sticking out just above the "8" in the image above.
On a microscope, the iris diaphragm controls the amount of light.