A magnetic field focuses he electrons
electron microscope
The electron microscope is a type of microscope that uses electrons to enlarge and illuminate an image of a specimen.
scanning electron microscope (SEM). It creates an image by detecting secondary electrons emitted from the sample surface when a focused electron beam is scanned across it. The SEM can provide high-resolution, detailed images of the sample's surface topography and composition.
A microscope is an instrument that produces an enlarged image of an object by using lenses to magnify the details of the object.
One type of electron microscope is a transmission electron microscope (TEM). This microscope passes a beam of electrons through a thin specimen to create an image. Another type is a scanning electron microscope (SEM), which scans a focused beam of electrons across the surface of a specimen to create a detailed image.
The scanning electron microscope uses a focused beam of electrons to magnify images. This beam scans the surface of the specimen, and the interaction between the electrons and the specimen produces signals that are used to create a detailed image.
Actually, electron microscopes use a beam of electrons instead of light to produce a magnified image. This allows for much higher magnification and resolution compared to optical microscopes.
Small objects can be seen with a transmission electron microscope by passing a beam of electrons through the sample, which interacts with the atoms and produces an image. The magnification of the microscope allows for a detailed view of the structure of the small objects, such as molecules, nanoparticles, or cells. The resolution of a transmission electron microscope is much higher than that of a light microscope, enabling scientists to study samples at the atomic level.
scanning electron microscope
a ray of light
ATransmission Electron Microscope produces an image by transmitting or "shooting" electrons through an ultra thin slice of the sample, resulting in cross section views of the thing you're looking at.A Scanning Electron Microscope produces 3D images of the sample by bombarding it with electrons and measuring the ones that bounce off.An important difference is that an ETM has much more magnifying power than a SEM, because of the amount of electrons accelerated towards the sample.for apex: It can produce images of objects within a cell.
A Reflecting light microscope. An electron microscope.