Light Microscope Lab
Arm/frame
Supports the tube and connects to the base
Light source
brightens up the field of view for better visualization of specimen under examination
Coarse adjustment knob
drastic movement of stage to bring the object in the slide into focus. For use with scanning (4X) objective lens
Mechanical stage knob
moves the stage in different directions
Stage Clip
securers the slide in place on the stage
Stage
supports slides or specimen to be viewed
Base
the bottom of the microscope, used for support
Condenser
Directs light onto the specimen
What knob is used when viewing specimen under high power and oil-immersion?
Fine adjustment knob
Observation Tube
Connects the eyepiece to the objective lenses
What does the microscope do to the image?
Invert and Flip
Ocular Lens
Lenses an observer looks into. They have a magnifying power of 10X
Fine adjustment knob
Slight movement of stage to bring the object in the slide into focus. For use with low power (10X), high power (40X), and oil-immersion (100X) objective lens
Objective lens
4 lenses that carry different powers of magnification (4X, 10X, 40X, and 100X) on their own
If ocular lens is 10X and the objective lens is 40X, what is the total magnification?
400X
What is the total magnification of high power (blue)?
400X
What is the total magnification of scanning (red)?
40X
Revolving Nosepiece
An apparatus that holds the objective lenses and use to change between the different objective lenses.
If the ocular lens of a microscope is 5X and the objective lens is 20X, what is the total magnification?
100X
What is the total magnification of low power (yellow)?
100X
What is the best objective lens to view bacteria?
Oil-immersion (1000X, white)
Main Switch
Power on/off switch
Iris diaphragm and iris diaphragm control
Vary the amount of light projected onto the slide