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18 Cards in this Set
- Front
- Back
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located in the base
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substage light or lamp
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platform the slide rests on while being viewed, hold the slide in place
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stage
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small substage lens that concentrates the light on the specimen, may have rack and pinon knob
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condenser
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arm attached to the base of the condenser that regulates the amount of light passing through the condenser, controls contrast
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iris diaphragm lever
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used to focus on the specimen
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coarse adjustment knob
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used for precise focusing once coarse focusing has been completed
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Fine adjustment knob
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supports the objective lens system, which is mounted on a moveable nose piece, and the ocular lens or lenses
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head or body tube
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vertical portion of the microscope connecting the base and head
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arm
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observations are made through the occular, has a magnification of 10 X, pointer is attached to one occular
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occular eyepiece
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rotating mechanism at the base of the head, carries 3 or 4 objective lenses
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nose piece
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supports the microscope
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base
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adjustable lens system that permits the use of a scanning lens, a low powered lens and a high powered lens or an oil immersion lens
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objective lenses
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magnification of occular lens times magnification of objective lens
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total magnification
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the ability of an instrument to distinguish two close objects or points as seperate objects or points
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resolution or resolving power
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the area seen through the microscope
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field of view
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distance between the end of the objective lens and the slide when the lens is in focus over the slide
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working distance
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once an object is in focus using a low power lens, it should still be in focus, or nearly so, when a higher power lens is rotated into place
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parfocal
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the microscope reverses the image, so that it will be upside down and reversed right to left when viewed. For example, the number 6 when positioned normally on a slide will appear as a 9 when viewed under a microscope
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orientation of an image
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