MICROSCOPE Flashcards
Eyepiece contains the ocular lens which you will be looking through to see the magnified specimens with magnification raging from 5X to 30X, but 10X or 15X is the most common in use. The ocular lens provides a re-magnified image to see when light enters through the objective lens.
The Eyepiece Lens
It connects the eyepiece and ocular lens to the objective lenses.
The Eyepiece tube
It connects the eyepiece tube to the base where you should hold when carrying the microscope
The Microscope Arm
It provides stability and support for the
microscope in its upright position. Typically, it holds the source of light or illuminator.
The Microscope Base
It is a light source which can come in a form of a built-in, low voltage illuminator light, or a mirror that reflects an external light source like sunlight
The Microscope Illuminator
It serves as the platform for slides which hold the specimen in place through stage clip on either side. Some has mechanical stage with adjustment knobs that allow movement of slides to achieve more precise positioning.
The Stage and Stage Clips
It contains the objective lenses. You can rotate this part in switching objective lenses and adjust the magnification power.
The Microscope Nosepiece
Generally, microscope feature three or four objective lenses, with magnification levels ranging 4X to 100X. Objective lenses are combining with the eyepiece lens to increase magnification levels. Objective lenses are the lenses that protrude downward over the specimen.
a. scanning lens - 4X
b. LPO - 10X
c. HPO - 40X
d. OIO - 100X
The Objective Lenses
It prevents users from moving the objectives too close to the slide.
The Rack Stop
Turning the knobs adjusts the distance between
the stage and the lens. The coarse adjustment knob is used to bring the specimen into initial focus – visible but not sharp. The fine adjustment knob is then turned to bring the specimen into sharp focus.
Control Focus Knobs
These parts are located under the microscopic stage. Condenser concentrates the light on the specimen whereas diaphragm with a small movable lever is adjusted that regulates the entry of light.
The Condenser Lens and Diaphragm
