The Microscope Flashcards
This is also known as the body. It carries the optical parts in the upper part of the microscope.
Head
It acts as microscopes support. It also carries microscopic illuminators.
Base
Connects the base and the head. It gives support to the head of the microscope.
Arms
The section in which the specimen is placed for viewing.
Stage
Have stage clips that hold the specimen in place
Stage
In this stage, it is the most common stage where it uses mechanical knobs to move them to control and position the slides more accurately.
Mechanical Stage
Knobs used to focus the microscope
Adjustment Knobs
Two types of Adjustment Knobs
Fine Adjustment, Coarse Adjustment
Lenses that are used to collect light and focus it from the illuminator into the specimen
Condenser
Found under the stage next to the diaphragm
Condenser
Ensures clear and sharp images with high magnifications of 400x above
Condenser
More sophisticated microscopes use this as it has a high magnification of 1000x
Abbe Condenser
One magnifying lens
Simple Microscope
Magnifying glass is an example of a … Microscope
Simple Microscope
Images under a magnifying glass is usually… larger
3x to 20x
More than one magnifying lens
Compound Microscope
Usually magnifies objects about 1000x
Compound Microscope
Photos taken through a compound microscope
photomicrographs
It is the wavelength of … that limits the size of objects under a compound light microscope
visible light (~0.45 micrometer)
Cannot be seen through a compound microscope if the object is…
smaller than half the wavelength size (or smaller than 0.225microm)
Uses a beam as a source of illumination and magnetic fields to focus the beam
Electron Microscope
Two types of Electron Microscopes
TEMs, SEMs
Tall column, an electro gun fires a beam of electrons downward.
TEM
When a specimen that is lesser than 1 micrometer is placed into the beam, some electrons are transmitted through and some are blocked
TEM
A shorter column, it is placed at the bottom of the column after being coated with a conductive metal such as a gold-palladium alloy
SEM
