What do the eyepieces and objective lenses of microscopes and telescopes look like?
The objective lens of the microscope forms a magnified and inverted real image, the eyepiece of the microscope forms a magnified and upright virtual image, and the final image of the microscope is a magnified and inverted virtual image; the objective lens of the telescope is an inverted and reduced real image, and the eyepiece of the telescope forms an upright and magnified virtual image, and the final image of the telescope is Magnifies the inverted virtual image.
A telescope is an optical system that keeps the incident parallel light beams parallel to exit through the objective lens and eyepiece. According to the telescope principle, there are three kinds. Instruments that observe electromagnetic radiation from distant objects by collecting electromagnetic waves are called radio telescopes.
In daily life, telescope mainly refers to optical telescope. But in modern astronomy, astronomical telescopes include radio telescopes, infrared telescopes, X-ray and gamma-ray telescopes. The concept of astronomical telescopes has been further extended to the realm of gravitational waves, cosmic rays and dark matter.
Microscope is mainly composed of eyepiece, objective lens, stage and mirror. Both the eyepiece and the objective are convex lenses of different focal lengths. The focal length of the convex lens of the objective lens is smaller than the focal length of the convex lens of the eyepiece. The objective lens is equivalent to the lens of the projector. This object is inverted and magnified by an objective lens. The eyepiece is equivalent to an ordinary magnifying glass, and the real image is made into a virtual image being enlarged through the eyepiece.
