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Flash Cards - Microscope parts

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Compound microscope
A microscope with 3 different lens systems in the instrument -- the ocular eyepiece lens, the objective lenses, and the condenser lens View
Calculate magnification
Ocular 10x Objective lenses (4x, 10x, 40, 100x) Ocular x Objective = Total magnif. View
Magnification
The ability to increase the apparent size of an object View
Resolution
The ability to distinguish objects which are close together; a combination of magnification and clarity View
Field of View
The diameter of the field you see when you look through the ocular lens. As the mag increases, the FOV decreases View
Working Distance
Distance between the tip of the lense and the surface of the specimen when in focus. As mag increases, working distance decreases View
Depth of Field
Vertical distance a specimen is in focus. As mag increase, DOF decreases View
Stage
Platform of microscope on which to place specimen View
Condenser
Focuses the light on the specimen View
Iris Diaphragm
Regulates the intensity of light passing through the specimen View
Parfocal
If a specimen is in focus at one mag power, it should be approximately in focus at all other powers View
Parcentric
Speciment will be approximately centered at all levels of mag. View