Three
Concave and convex lenses both enlarge an object to a certain extend.
A Condenser Lens is a device made up of a series of lenses and sometimes a mirror, that is used to gather and 'focus' light to direct it onto an object through a different projection lens.
Since microscopes are instruments to see and observe very small objects which are not visible to naked eye, it needs to focus on them. The lenses are used for this purpose of focusing. If there will be no lens in the microscope then it will not be able to zoom and focus.
It is an optical instrument that gathers light from the object being observed and focus the light rays to produce a real image. They are also called objectives. In microscopes, lenses are found at the bottom near the sample. They are mainly used at telescopes, microscopes and cameras.
Coarse focus on a microscope is used only when you are using the lowest objective lens. You use it to get the object magnified mostly. The fine focus is then used to adjust the resolution to the viewer's eyesight.
Concave and convex lenses both enlarge an object to a certain extend.
Its a tool used to magnify an object
A Condenser Lens is a device made up of a series of lenses and sometimes a mirror, that is used to gather and 'focus' light to direct it onto an object through a different projection lens.
To focus AND reflect light through the specimen slide to the lenses.
Since microscopes are instruments to see and observe very small objects which are not visible to naked eye, it needs to focus on them. The lenses are used for this purpose of focusing. If there will be no lens in the microscope then it will not be able to zoom and focus.
Some cameras will have two sets of lenses, such as ones with a telephoto lens. These use two lenses to focus on and enlarge images.
The ocular and objectives
Lens
It is an optical instrument that gathers light from the object being observed and focus the light rays to produce a real image. They are also called objectives. In microscopes, lenses are found at the bottom near the sample. They are mainly used at telescopes, microscopes and cameras.
Adjustment knobs are used to focus light in a light microscope.
Fujinon belongs to the Fuji Film company. Fujinon is used for optical lenses of various sizes and dimensions. These could include soft focus lenses, enlarging lenses, etc.
In an optical instrument, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image. Objectives can be single lenses or mirrors, or combinations of several optical elements. They are used in microscopes, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective glasses.