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Bookmark preventing shortsightedness

A technology for preventing myopia and bookmarks, applied in bookmarks, books, printing, etc., can solve problems such as unrealization, and achieve the effects of preventing myopia, protecting eyes, and reducing the incidence of disease.

Inactive Publication Date: 2017-07-28
WEST ANHUI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing bookmarks only have the function of reminding the progress of reading, and cannot realize the above functions

Method used

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  • Bookmark preventing shortsightedness
  • Bookmark preventing shortsightedness
  • Bookmark preventing shortsightedness

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Experimental program
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Effect test

Embodiment Construction

[0023] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0024] see Figure 1-3 , a bookmark for preventing myopia, comprising a book carrier 1 and a main body 2; the rear end of the book carrier 1 is hingedly connected to the main body 2, and an angle holding mechanism is arranged between the book carrier 1 and the main body 2, the book carrier 1 It can rotate arbitrarily with the main body 2 under force, and after turning to a suitable angle, the angle holding mechanism can keep the book carrier 1 and the main body 2 at this angle; the upper end of the main body 2 is provided with an ultrasonic measuring The distance meter 8 and the ultrasonic distance meter 8 can reach the order of centimeters in accuracy, the maximum error is 0.5 cm, and the repeatability is good, and it has the advantages of good directionality, easy control of strength, and no direct contact with the measured object. Th...

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Abstract

The invention discloses a bookmark for preventing myopia, which comprises a book-carrying board and a main body; the rear end of the book-carrying board is hingedly connected to the main body, and an angle maintaining mechanism is arranged between the book-carrying board and the main body; the upper end of the main body is provided with an ultrasonic Rangefinder; the main body is provided with a single-chip microcomputer, and the front side of the main body is provided with a first reminder mechanism, and the first reminder mechanism is composed of a buzzer and an LED light, and the ultrasonic rangefinder and the first reminder mechanism are all connected to the single-chip microcomputer The main body is also provided with an illuminance meter and a second reminder mechanism, the second reminder mechanism has the same structure as the first reminder mechanism, and the illuminance meter and the second reminder mechanism are all connected to the single-chip microcomputer; a rechargeable battery is arranged in the described main body, And the rechargeable battery is connected to the microcontroller. The bookmark for preventing myopia can monitor the sitting posture of the reader and sense the surrounding luminosity. When people are reading in an incorrect sitting posture or the surrounding luminosity is inappropriate, a warning will be issued, which is beneficial to preventing myopia and reducing the prevalence of myopia.

Description

technical field [0001] The invention relates to the technical field of daily necessities, in particular to a bookmark for preventing myopia. Background technique [0002] There are many people with myopia in our country, especially among children and teenagers, the prevalence rate is extremely high. The latest data from the National Student Physical Health Survey shows that the incidence of myopia among primary school students in my country is 22.78%, that of middle school students is 55.22%, and that of high school students is 70.34%. What is even more shocking is that a survey report stated that there are more than 300,000 blind people in China due to high myopia. The hazards of myopia are too numerous to mention: it is easy to cause malnutrition, and thinking will be restricted. The direct expression is dull reaction and low learning efficiency; Myopia relies on parents, lacks independence, is prone to anxiety, and is in a sub-healthy state of mind. There are about 48 m...

Claims

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Application Information

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IPC IPC(8): B42D9/00G08B21/24
CPCB42D9/00G08B21/24
Inventor 潘校娟何富贵张乐杨某闪
Owner WEST ANHUI UNIV
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