A compound monocular microscope.
A microscope is an instrument that produces a precisely enlarged image of small objects so that the user can see things on a larger scale. The word microscope comes from the new Latin word microscopium, which comes from the combined form micr-, meaning “small” and scope, which means “a viewing instrument”. The word monocular comes from the Latin monoculus, which means “to have one eye”. Thus, a monocular microscope is an instrument for seeing small things through a single lens.
A basic monocular microscope.
Microscopes are classified both by the number of eyepieces and how the image is magnified. While the monocular microscope is made for one eye, the binocular and stereoscopic microscopes are made for both eyes. Trinocular microscopes are binoculars or stereomicroscopes with a third eyepiece, which can be for a second person to share the view or affix a digital camera or video camera to the third eyepiece to create a lasting record of what was seen.
Three paramecium are seen under the microscope.
A monocular microscope can have single or compound lenses. Simple microscopes – those with a single lens – are available only as monocular microscopes. Single-lens monocular microscopes include the various types of lenses that are also known as magnifying lenses. Also included are jeweler’s lenses or magnifying glasses and reading glasses. Many people aren’t used to thinking of them as microscopes, but that’s how they’re classified.
As many types of image distortion occur with a single lens, its uses are limited. One type is chromatic aberration, which distorts color. Another is spherical aberration that distorts the focus.
Reading glasses are a type of single-lens monocular microscope.
A compound magnifier is different from a compound microscope. A compound lens magnifier is a single set of simple lenses with a common access. Using a composite lens is attractive because it can correct some of the aberrations of a single lens as well as magnify at a higher power and, being portable, has the same flexibility as a magnifying glass or magnifying glass. It is by nature a monocular microscope.
While a compound microscope has a minimum of two lens arrays, which helps to increase the maximum possible magnification, it can still be a monocular microscope if it only has one eyepiece. One of the matrices is the eyepiece, and this is the lens matrix through which the viewer looks. The other set of lenses is the objective, which is positioned close to the object being viewed.