1.diffrent typeof diaphraghms
2.a phase plate
3.living sample can be viewed
4.natural processes ccan be viewed without staining
5.enhances clarity
6.can be of two types :positive and negative
positive:background much brighter than specimen
negative:background is darker
An electron microscope and perhaps alsp a MRI scanner.
Two types of microscope use two types of illumination. The old reflect mirror type use a mirror beneath the slide to gather light from the room and concentrate it on the slide. You wiggle the mirror around while looking through the 'scope until you get the brightest field. The second type of microscope uses an integral light source located beneath the slide. These are expensive, because the light must be as pure as possible and evenly bright across the viewing field.
When a microscope is parcentered, the specimens will appear centered in the field of view at every magnification. So if a field of a slide is centered at the lowest power, even though the field diameter shrinks at each higher magnification, the desired part of the specimen will remain in the center of the viewing field.
it becomes bigger
microscope, in conclusion, is a great contribution in the field of medicine because it opened information about how the things around us looks like when magnified. :)xoclao
august kohler
microscope is used to see small objects
the object appears light on a dark background
First of all which microscope do you want to know the parts to? A scanning electron microscope? Transition electron microscope? Bright field? Dark field? Phase contrast? Confocal? These parts of found on a bright field light microscope: fine adjustment knob coarse adjustment knob slit light reflected mirror diaphragm objective lens handle stage clips nosepiece revolving nose piece Base arm eyepiece stage bodytube stage
bright-field
A Dark Field microscope is one that has a special condensor (light source) that illuminates the specimen in such a way as to enhance the contrast even if it is unstained. When you look at a specimen in a dark field scope, it looks bright, but it is visible against a black background -- the 'dark field.'
Brightfield microscopic illumination is used mainly to examine stained specimens, ie blood samples, cellular details, etc. It can also be used to examine unstained specimens that are not transparent......... Zeiss Guy
it means to see through the microscope on a field
Phase-contrast microscopy is the observation of internal structures of living microbes where as bright field microscopy is the observation of killed stained specimens and naturally colored live ones.
a place where the background of the object is called field in microscope
A Dark Field microscope is one that has a special condensor (light source) that illuminates the specimen in such a way as to enhance the contrast even if it is unstained. When you look at a specimen in a dark field scope, it looks bright, but it is visible against a black background -- the 'dark field.'
Bright field microscope : used by biology students Dark field microscope : Improves apparent resolution to see smaller structures in cells. Used to view unstained specimens. Phase contrast microscope : Makes many structures within a living cell highky visible without staining or altering the cell.