Types of Microscopes
Light microscope
When light passes through a stained tissue the light is absorbed by the various stains. This allows for visualization of the specimen.
When light passes through an unstained tissue the light is not absorbed leaving the specimen almost invisible. Light is passed through a special condenser that causes the light waves striking the specimen to be shifted out of phase with those missing the specimen. This results in the specimen becoming visible
Clinical applications:
Urinalysis & platelet couunts
Phase contrast microscope