Parts of Microscope Flashcards
Mini quiz
What is the ocular lens?
Eyepiece where you look through
What is the body tube?
What the oculars are attached to
What is the arm?
Yknow
What is the base?
yknow. Dont mix up with stage
What is the revolving nosepiece?
Where the different magnification lenses are
What are the objective lenses?
Lenses that magnify the specimen
What is the stage?
Holds the microscope
What is the condenser?
On bottom of stage, it focuses light
What is the diaphragm?
On the condenser on the bottom of the stage, it controls how much light is let through
What is the illuminator?
Light source
What is the coarse focus knob?
Big knob
What is the fine focus knob?
Little knob
What is the base?
Yknow
Why is it called a compound microscope and not a simple one?
It has multiple different lenses
What is the magnification of the ocular lenses?
10x
What is the magnification of the scanning lens?
4x
What is the magnification of the low power lens?
10x
What is the magnification of the high power lens?
40x
What is the magnification of the oil lens?
100x
How do you find total magnification?
Ocular lens magnification (10) x objective lens magnification (4, 10, 40, or 100)
Path of light through a microscope?
Illuminator -> condenser lens -> specimen -> objective lenses -> body tube -> prism -> ocular lens -> line of vision
What lens should the microscope be left on after use?
Scanning (4x)
What is magnification?
Increasing the apparent size of something
What is resolution?
The clarity of an image
What is resolving power?
The smallest thing we can see on a microscope, it’s 0.2 μm (micrometer)
What is contrast?
Light and dark
What is parfocal?
When finding a specimen at one magnification, you can change the lens and still see it
When finding a specimen at one magnification, you can change the lens and still see it. This means the microscope is ____
Parfocal
Can you see images better with longer or shorter wavelengths?
Shorter
