The microscope was developed in the 1600’s.
Several people are given credit for the development of the
Zacharias Janssen: created the first microscope by putting two
magnifying glasses together in a tube.
Anton Von Leeuwenhoek, also credited with creating one of the
first modern microscopes.
Types of microscopes
Simple: A simple microscope is a microscope with only two
lenses total, and eyepiece and objective lens.
Compound: These microscopes have three or more lenses that
allow the observer to look at an object at different magnifications.
Stereomicroscopes: These microscopes have and eyepiece lens for
each eye. This allows the viewer to see the object in 3D; they are
used to look at objects that are too thick to allow light through.
Electron scanning microscopes: These are the most powerful
microscopes; they can magnify objects over a million times. They
use magnets to bend beams of electrons to magnify objects.
Compound, simple, and stereomicroscopes use lenses to create the
magnification. The type of lens they use is a convex lens.
There are two basic types of lens: Convex which is thicker in
the middle than on the edges, this lens magnifies and also will flip
And concave, these lenses are thicker on the edges than in the
To figure out the magnification you multiply the eyepiece, usually
10x by the objective printed on the side of the lens.