MLT 1112 Unit 3 Vocab
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26 Terms
Aperture diaphragm control lever
Controls the light being illuminated through the specimen; located at the bottom of the condenser.
Arm
The site of attachment for the nosepiece; also known as the neck.
Base
Supports the microscope; also known as the stand.
Brightfield illumination
When light passes through the specimen making it look dark against a bright background.
Condenser
Concentrates the light through the object being viewed.
Field diaphragm
A shutter-like covering that controls the size of illumination from the light source before it reaches the condenser aperture.
Field of view
The total area visible while looking in the microscope; also known as the microscopic field.
Focus control
Used to bring the item of interest into focus.
Interpupillary control
Used to adjust the distance between the oculars.
Iris diaphragm control lever
Controls the light being illuminated through the specimen; located at the bottom of the condenser.
Light source
Makes it possible to see the item of interest.
Microscopic field
The total area visible while looking in the microscope; also known as the field or field of view.
Neck
The site of attachment for the nosepiece; also known as the arm.
Nosepiece
The part of the microscope used to secure the objectives.
Numerical aperture
Indicates the ability of the objective lens to collect light.
Objective
Contains the lens used for magnification.
Ocular
The component of the microscope the user looks through to see the magnified item.
Oil immersion lens
This objective lens has a power of magnification of 100x.
Optical tube length
The distance from the ocular to the area where the nosepiece connects to the objective.
Optical tube
Links the objective lens with the oculars.
Resolution
The level of detail that can be seen.
Stage
The part of the microscope that supports the item being viewed.
Stage clip
Secures the slide on the stage.
Stage control
Moves the stage.
Stand
Supports the microscope; also known as the base.
Working distance
The distance between the objective lens and the object being viewed when clearly in focus.