Photometry and ranging type eye protection system

Abstract

The invention discloses a photometry and ranging type eye protection system, and relates to the technical field of the myopia prevention instrument. The system comprises a single-chip microcomputer which is electrically connected with a distance detector, a light sensation detector, a vibration module and a stimulation module. According to the photometry and ranging type eye protection system, thedistance detector and the light sensation detector can be respectively used for detecting the distance between the eyes of a user and a book and the illumination intensity during reading. When the distance detector and the light sensation detector respectively detect that the distance is too small or the light is weaker, the stimulation module can be controlled to give out alarm sound through thesingle-chip microcomputer, and the vibration module vibrates to remind a user. The user can be reminded to change the illumination intensity and the distance between the eyes and the book, so that the user has a proper healthy reading environment, the eyes are in a relatively relaxed state, eye fatigue can be effectively avoided, and myopia can be prevented and reminded to develop and slow down in a relatively intelligent mode.

Description

technical field [0001] The invention relates to the technical field of myopia prevention equipment, in particular to a light-metering and distance-measuring eye protection treasure system. Background technique [0002] In the state of adjustment and relaxation, parallel light rays are focused in front of the retina after passing through the eyeball refractive system, which is called myopia. Myopia is also called short-sightedness, because this kind of eye can only see near but not far. After being refracted by the refractive system of the eye, the parallel light from infinity gathers into a focal point in front of the retina, and then forms an unclear image on the retina. The distance vision is obviously reduced, but the near vision is still normal. [0003] The generation of myopia (except congenital) is caused by the shortening of visual distance and the weakening of light intensity. At present, there is no intelligence in the market to realize the development and mitigati...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a light-metering and distance-measuring eye protection system, which solves the problem that there is no intelligence in the market to prevent and remind the development of myopia and mitigation measures

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