Microscopy.
Field training
I love all the students. Today I will present how to intelligently use the microscope lens (Compound light microscope) to correct it. Because of our classes. We will focus on the use of this camera. The basis for this camera is very important. The issue that many schools do not teach. What is the size of the sample by using a scale Ewarseniirs (Vernier) is in this clip. I remember when I used to practice it because there is a good basic microscopy skills to take with me. And other important issues. Price of this camera is quite expensive, about £ 70,000, so if they are used properly. It will make our younger generation to take my camera to me.
Our hero today. Video microscopy was conducted by the lens of the adult kind. Department of Biology. Faculty of Science University. The clip is very cool. Very detailed tutorial. To get a clip. Thanks for sharing the clip and do something for our study here.
But before you watch the clip. Let’s review the Knowledge of the microscope. Before me.
Microscope light source is divided by two species.
One. Microscope that uses light.
(Light microscope: L.M.).
2. An electron microscope.
(Electron microscope: EM).
By using light microscopy. LM is often referred to as visible light (Visible light) is light.
There are three types of optical microscope.
1.1 single lens microscope.
(Simple light microscope).
It uses a single lens. Image is a virtual image is upright. Currently, this camera is not for me. Use a magnifying glass to it.
1.2 The microscope lens.
(Compound light microscope).
There are two main lenses, the lens is the eye lens. The magnification is 10x and the objective lens, which is the fourth expansion to 4 times 10 times 40 times and 100 times (or at least a short head), which this camera. This much we can be trained to use it proficiently. And today I offered it to use my camera.
1.3 stereo camera.
(Stereo Microscopes).
Many schools have this type of camera I use. In particular, we will study the structure of a species without a slide. I used parts they want to see immediate results, such as the structure of the flower seeds that you would like to use a magnifying glass. But better than a magnifying glass to see it.
2. An electron microscope (Electron microscope: EM).
Using an electron beam. From which the electron gun made from tungsten wire (Tungsten) features a built-V (this test like a lot) by increasing the current through the tungsten wire. The electrons are released and will be a vacuum in the barrel. To prevent the beam electrons collide with molecules in the air. The lens has an electromagnetic lens. (Electromagnetic lens) is made of a coil of wire wrapped around a bar magnet.
There are two types of electron microscopes.
2.1 through a two-electron microscopy. (Transmission electron Microscope: TEM).
Used to study the internal structure of the cell. Beam of electrons to illuminate the specimen. (So-called Transmission electron microscopy) is a two-dimensional image.
2.2 electron microscopy, SEM (Scanning electron Microscope: SEM).
Used to study the surface of the sample. Electron beam scanning the surface of an object. (So-called scanning microscope) is a 3-D image.
Well, I now have a basic knowledge of the microscope now. I invite you to use the lens of the microscope. Conducted by the kind adults. Department of Biology.
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