Introduction to the Microscope

A set of vocabulary flashcards covering microscope structures, parts, and magnification calculations based on lecture objectives.

Ocular Eyepiece

The microscope eyepiece which has a magnification of $10\times$.

Scanning objective

An objective lens with a magnification of $4\times$.

Low objective

An objective lens with a magnification of $10\times$.

High objective

An objective lens with a magnification of $40\times$.

Oil Immersion objective

An objective lens with a magnification of $100\times$.

Total Magnification Calculation

Calculated by multiplying the ocular eyepiece magnification by the objective lens magnification (e.g., $10\times \times 4\times = 40\times$).

Rotating Nosepiece

A microscope structure that holds and allows for the switching of objective lenses.

Stage clip / Anchoring clip

Microscope structures used to secure the slide in place on the stage.

Iris Diaphragm

A microscope component used to control the amount of light reaching the specimen.

Condenser

A microscope structure used to focus light onto the specimen.

Condenser knob

The knob used to adjust the position of the condenser.

Light source / Illuminator

The component that provides the light for viewing the specimen.

Mechanical Stage

The platform where the slide is placed for observation.

Coarse-Focus Adjustment Knob

A knob used for initial large-scale focusing of the specimen.

Fine-Focus Adjustment Knob

A knob used for precise, small-scale focusing of the specimen.

Mechanical Stage Adjustment Knob

A knob used to move the mechanical stage to position the slide.

Light Rheostat

A component, also called a rheostat, used to adjust the intensity of the light source.

Aperture

The opening in the stage through which light passes to reach the specimen.

Base / Arm / Head / Body

Structural components of the microscope that provide support and house the optical elements.

Power switch

The switch used to turn the microscope light source on or off.