The Basic Principle Of The Telescope

Feb. 20, 2019

A telescope is an optical instrument that uses a lens or mirror and other optics to observe distant objects. The light is refracted by the lens or the light is reflected by the concave mirror to enter the aperture and converged and imaged, and then seen through a magnifying eyepiece.

The telescope is a visual optical instrument for observing distant objects. It can enlarge the small angle of the far object at a certain magnification to make it

The image space has a large opening angle, making the object that could not be seen or distinguished by the naked eye clear and legible. Therefore, telescopes are an indispensable tool in astronomical and ground observations. It is an optical system that keeps the incident parallel beams still in parallel through the objective lens and the eyepiece. According to the telescope principle, it is generally divided into three types An instrument for observing electromagnetic radiation of distant objects by collecting electromagnetic waves. It 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, and X-rays. And gamma ray telescope. The concept of astronomical telescopes has further extended to the fields of gravitational waves, cosmic rays and dark matter.

Small handheld telescopes for personal use should not be used with large magnifications, generally 3 to 12 times. When the magnification is too large, the imaging sharpness will be worse, and the jitter will be severe. The telescopes with more than 12 times generally use tripods to fixed.

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