LAB (parts of a microscope) Flashcards
Y or U-shaped stand that supports the microscope
base
A short piece of metal attached to the end of the base. It also supports the microscope.
Pillar
The curved metallic part arising from the pillar. Used to hold the microscope.
Handle/Arm
Found at the junction of the pillar and the handle. Used to tilt the microscope.
Inclination Joint/Screw:
The cylindrical structure vertically arising from the handle. It holds the dust shield and nosepiece with the objectives at the lower end.
Body tube
The upper smaller end of the Body Tube bearing the eyepiece or ocular.
Draw tube
the circular structure at the lower end of the body tube to which the objectives are attached.
Revolving nosepiece
A thin circular structure above the nosepiece used to protect the lenses of the objectives.
Dust shield
Two pairs of wheels attached to either side of the body tube:
Adjustment Knob
The bigger wheel used to adjust low power objective in focusing.
Coarse Adjustment Knob
The smaller wheel used for delicate focusing in connection with the high power and oil-immersion objectives.
Fine adjustment Knob
The square or circular platform with an opening at the center while the slide is placed during focusing.
Stage
The paired structures on either side of the stage used to hold the slide in place
Clips
Found below the stage and attached to the pillar used to hold the mirror.
Mirror Rack
The tube-like structures attached to the revolving nosepiece
Objectives
The shortest tube that forms a whole view of the specimen.
Scanner
Slightly longer tube that forms a bigger image of the object
Low Power Objective (LPO).
Next longer tube that gives a much enlarged and more detailed view of the specimen.
High Power Objective (HPO)
Another objective as long as the HPO but with a much bigger degree of magnification. Usually used when studying microorganisms.
Oil immersion Objective:
Found below the stage near the base provided with concave and plane surfaces. Used to collect and direct light to the object.
Mirror
Found below the stage consisting of regularly arranged circular blades. The opening could be adjusted to regulate the amount of light reflected by the mirror on the object.
Iris dIaphragm
A lens found immediately beneath the hole of the stage. Used to concentrate light rays into the specimen.
Condenser
what are the 12 Mechanical parts
- Base
- Pillar
- Arm
- Inclination Joint
- Body Tube
- Draw Tube
- Revolving Nosepiece
- Dust Shield
- Adjustment Knobs:
- Coarse Adjustment Knob
- Fine Adjustment Knob - Stage
- Clips
- Mirror Rack
Magnifying parts
Ocular
Objectives
