There are several objective lenses
As a general Wholesale self
tapping metal screws rule, you can easily differentiate two specimens or
even objects if they have high contrast white is better seen when set against a
black background. This is responsible for keeping away stray light. These kinds
of specimen are usually called phase objects because they do not absorb light
instead, they diffract (to cause the bending of Wholesale self
tapping screws the waves) them. This is by far, among the most important
parts of the microscope.To understand the microscope more, you need to
understand its parts. As such, these objectives need something to hold them
together and this is where the nosepiece comes in handy.
Other special
objectives are the infinity corrected optical systems where the image distance
is set at infinity.
Books and even Internet articles that explain the
phase contrast method seems too technical for this kind of article one that s
focused in explaining the lenses system of the microscope. The phase contrast
technique is basically about enhancing contrast. These are the ones responsible
in forming the image of the specimen. You need to understand what each part is
capable of.
These lenses are great for biomedical and industrial microscopes. Each lens
varies according to magnification to provide you with more options for better
specimen examination. This is done in order to get optimum lighting and for
special viewing techniques. Let s not discuss what 1/4 wavelength really means
but simply put, it suggests that such a reduced property of light cannot be seen
by your naked eye, not even by a camera. There are several objective lenses in a
microscope.
CanScope complete solution for all your microscopy
needs.Without this part, you cannot see the specimen being examined.
The
primary role of the objective lenses is to gather light from the object or
specimen being observed.This article, however, will only focus on the lenses
system the whole group responsible in forming the image.
While the lenses are
already powerful enough, some still prefer to use accessories such as a
fluorescent filter. Still, to give you an idea on the concept of the phase
contrast microscopy, this simple explanation would do:
It s a bit hard to
have a microscopic view of living tissues (such as blood) because most of them
are transparent. It is able to yield an image that is darker than its light
background.It is in this context that the phase contrast technique becomes very
useful.Once again, these parts only refer to the lenses system of a microscope.
You still need to acquaint yourself with the other parts such as the
illumination system and specimen control to better understand how the microscope
works. As a result of the bending, the light becomes less visible (by 1/4
wavelength).
