What are the images of the eyepiece and objective of a microscope and telescope
The objective of the microscope is a magnified inverted real image, the eyepiece of the microscope is an magnified upright virtual image, and the final image of the microscope is an magnified inverted virtual image; The objective lens of a telescope is an inverted and reduced real image, the eyepiece of a telescope is an upright and enlarged virtual image, and the final image of the telescope is an enlarged and inverted virtual image.
A telescope is an optical system that maintains parallel beams of light emitted through an objective and an eyepiece. According to the principle of telescopes, there are three types. The instrument that observes electromagnetic radiation from distant objects by collecting electromagnetic waves is called a radio telescope.
In daily life, telescopes mainly refer to optical telescopes. But in modern astronomy, astronomical telescopes include radio telescopes, infrared telescopes, X-ray telescopes, and gamma ray telescopes. The concept of astronomical telescopes has been further extended to the fields of gravitational waves, cosmic rays, and dark matter.
The microscope mainly consists of an eyepiece, an objective, a stage, and a reflector. Eyepiece and objective lenses are convex lenses with different focal lengths. The focal length of the objective convex lens is smaller than that of the objective convex lens. The objective lens is equivalent to the lens of a projector. This object is inverted and magnified through an objective lens. The eyepiece is equivalent to a regular magnifying glass, which transforms the real image into a virtual image with positive magnification.
What should be used to wipe the microscope lens
It is recommended to use a mixture of three parts alcohol and seven parts ether to wipe the microscope lens, as ether is an anesthetic and many units do not have it. Anhydrous alcohol can also be used for wiping. Xylene is basically not used anymore.
The wiping method is to rotate outward from the center and then naturally rotate out the outermost ring. Do not use the same piece of paper to repeatedly wipe, as this will not easily leave any marks.
But be careful not to use a mixture to wipe the plastic or rubber parts.
