What is Light microscope?
[[File:Compound Microscope 1876.JPG|right|thumb|Early monocular light microscope.]] A '''light microscope''' works like a refracting [[telescope]] except that the object is very close to the objective [[Lens (optics)|lens]]. An object to be studied, for example a tiny [[organism]] so small it looks like just a dot, is put on a slide, which is usually a flat piece of [[glass]]. The clips on the microscope's flat stage hold the slide in place. The stage can be adjusted to add more light. It also moves to allow different layers of the object to be in [[focus]]. The user looks through the microscope eyepiece. A [[mirror]] at the bottom of the microscope reflects light rays up to the object through a hole in the stage. Objective lenses magnify the image which is made even larger when it is seen through the eyepiece lenses. Some light microscopes are actually [[digital camera]]s, made to photograph small things but having no eyepiece. Many microscopes, often used in [[college]]s and [[high school]]s, normally have a top magnification of 40x with the option of having 4x and 8x. This lets the microscope show basic [[cell]]s and other items. Others can magnify hundreds of times, or thousands. == Components == [[File:Optical microscope nikon alphaphot.jpg|right|thumb|Modern monocular transmission microscope, with parts numbered]] [[File:ObOk.png|thumb|right|A microscope objective lens; left 100x, and an eyepiece lens; right 10x]] All modern optical microscopes designed for viewing samples by transmitted light share the same basic components of the light path, listed here in the order the light travels through them. Also almost all microscopes have the same 'structural' components: * Ocular lens (eyepiece) (1) * Objective turret or Revolver or Revolving nose piece (to hold multiple objective lenses) (2) * [[Objective (optics)|''Objective'']] (3) * Focus wheel to move the stage (4 – coarse adjustment, 5 – fine adjustment) * Frame (6) * Light source, a [[light]] or a [[mirror]] (7) * Diaphragm and [[Condenser (microsco