THE MICROSCOPE Flashcards
The total magnifying power of the compound microscope is the product of the?
magnification of the objective lens and that of the eyepiece
-is an instrument that uses one or more lenses to produce a magnified image of an object that is invisible to the naked eye.
MICROSCOPE
is the most commonly used microscope in laboratories. It
uses the principle of light microscopy (also called optical microscope) in which it uses natural or artificial transmitted light as the source of light to illuminate an object.
COMPOUND MICROSCOPE
ability of a microscope to see a tiny object 1000 TIMES
MAGNIFICATION
- Magnification power of compound microscope.
10X, 40X and 100X
-are the lenses you look through?
EYEPIECE/OCULAR LENSE
-Light travels from the objectives through a series of magnifying lenses in the_________ TO THE OCULAR.
BODY TUBE
-Attached to a rotating nose piece, or turret, at the base of the body tube are a group of 3 or 4 objectives
OBJECTTIVE LENSE
-scanning power
4x
-low power
10x
-high power
40x
-oil immersion
100x
- surface or platform on which you place the microscope slide is the stage.
STAGE
-in the center of the stage there’s an opening called.
STAGE APERTURE
-in some microscope the stage is stationers & has aclips to hold on the side place.
STATIONARY
-it’s movable type of stage
MECHANICAL STAGE
-the area under the stage, that contain “diaphragm & condenser”
SUBSTAGE
-it regulates the amount of light passing from the light source through the specimen and through the lens system of the microscope.
DIAPHRAGM
-which transmits light through a translucent object for viewing and controlled by an on/off switcH
ILLUMINATION SYSTEM
-You can focus your microscope by using the?
COARSE & FINE ADJUSTMENTS
-uses an ultraviolet light source to expose a specimen stained with fluorescent dye resulting in an emission of longer wavelength of light.
FLUORESCENT MICROSCOPE
-utilizes a beam of electrons instead of a beam of light used in the light microscopy. The resolution of this is extremely high, theoretically 100,000 times than that of a light microscop
ELECTRON MICROSCOPE
-A type of an electron microscope that provides a three- dimensional image of the object as well as high resolution.
SCANNING ELECTRON MICROSCOPE
-another type of electron microscopy by which live organisms can be visualized based on rapid cooling of specimens by deep-freezing in liquid gas and the
subsequent formation of carbon platinum replica of the specimen.
FREEZE-ETCHING
