Automatic pencil with myopia-preventing alarm

Abstract

The invention provides an automatic pencil with a myopia-preventing alarm. The automatic pencil is provided with, at a side edge of a tail of a penholder thereof, a distance testing sensor to a side of which a myopia-preventing prompting LED lamp tube is arranged. When the automatic pencil is used, and if the two eyes are too close to the penholder, the myopia-preventing prompting LED lamp tube flicks for prompting, which is conductive to better protecting the eyesight in the use of the automatic pencil; in short, the automatic pencil with the myopia-preventing alarm is very suitable for elementary school students to use.

Description

technical field [0001] The invention relates to an automatic pencil, in particular to an automatic pencil equipped with an anti-myopia alarm. Background technique [0002] Many elementary school students use mechanical pencils to do their homework, and when they do homework for too long, their eyes will get tired, that is, they will gradually get closer to the objects, and over time they will form myopia, which is not conducive to the healthy growth of students. Contents of the invention [0003] The invention provides a mechanical pencil equipped with an anti-myopia alarm device, which can send out flashing lights to remind students if their eyes are too close to the object they see when using the mechanical pencil. [0004] The present invention includes a pen holder of a mechanical pencil, and the adopted technical solution is: the mechanical pencil is provided with a distance testing sensor on the side of the tail of the pen housing, and an anti-myopia prompting LED li...

AI Technical Summary

Problems solved by technology

[0002] Many primary school students use automatic pencils to do their homework, and when primary school students do homework for too long, their eyes will beco

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