What has two lenses called the eyepiece lens and objective lens?
What has two lenses called the eyepiece lens and objective lens?
Compound Microscopes Typically, a compound microscope is used for viewing samples at high magnification (40 – 1000x), which is achieved by the combined effect of two sets of lenses: the ocular lens (in the eyepiece) and the objective lenses (close to the sample).
What is a stereoscopic microscope used for?
A stereo microscope is a type of optical microscope that allows the user to see a three-dimensional view of a specimen. Otherwise known as a dissecting microscope or stereo zoom microscope, the stereo microscope differs from the compound light microscope by having separate objective lenses and eyepieces.
Which two parts of the microscope are used to move the objective lens?
Revolving Nosepiece or Turret: This is the part of the microscope that holds two or more objective lenses and can be rotated to easily change power.
What is the function of the nosepiece on a microscope?
Nosepiece: A rotating turret that houses the objective lenses. The viewer spins the nosepiece to select different objective lenses. Objective lenses: One of the most important parts of a compound microscope, as they are the lenses closest to the specimen.
What are the two magnifying parts of the microscope?
They have an objective lens (which sits close to the object) and an eyepiece lens (which sits closer to your eye). Both of these contribute to the magnification of the object. The eyepiece lens usually magnifies 10x, and a typical objective lens magnifies 40x.
How do you focus a microscope on a high power lens?
When focusing on a slide, ALWAYS start with either the 4X or 10X objective. Once you have the object in focus, then switch to the next higher power objective. Re-focus on the image and then switch to the next highest power.
How do you manipulate a microscope?
Terms in this set (11)
- Remove the microscope from the cabinet USING both of your hands supporting the arm and the base.
- Place it on a flat surface.
- Turn the coarse adjustment knob to raise the body tube.
- Revolve the nosepiece.
- Put it on Low-power objective.
- Adjust the diaphragm.
What is the purpose of the fine focusing knob?
Focus (fine), Use the fine focus knob to sharpen the focus quality of the image after it has been brought into focus with the coarse focus knob. Illuminator, There is an illuminator built into the base of most microscopes.