Shadowless table lamp with sitting posture monitoring function

Abstract

The invention relates to a shadowless table lamp with a sitting posture monitoring function. The shadowless table lamp comprises a U-shaped lamp body and a supporting body, wherein a left lamp cap and a right lamp cap are arranged on the U-shaped lamp body, and an LED light source is arranged in each lamp cap; the two lamp caps are arranged above the two sides of a writing area, and the rear ends of the lamp caps (the ends away from a writer) are connected with the two ends of a common connecting body respectively to form the U-shaped lamp body seeing from an overlook viewing angle. The two sides or the rear of the U-shaped lamp body is provided with an environment light filling lamp. An infrared ray emitting diode and an infrared ray receiving diode are arranged at the opposite positions, close to the front ends, of the two lamp caps, the infrared ray emitting diode and the infrared ray receiving diode correspond in position to form an invisible infrared monitoring light beam, when the head of the user is lower than a specified height, the infrared monitoring light beam is cut off, and an infrared ray monitoring alarm circuit will make a sound for reminding. A lamp rod and a writing board serving as a base are used as the supporting body of the U-shaped lamp body, the surface of the writing board does not reflect light, and the writing board tilts forward slightly to facilitate writing.

Description

technical field [0001] The invention relates to a shadowless table lamp with a sitting posture monitoring function, which belongs to the field of writing lighting lamps. Background technique [0002] Myopia is a big problem that plagues students, and it has a great impact on students' study, work and life. Among the causes of myopia, incorrect writing habits and unscientific use of light are the main reasons. For example, new elementary school students often write on their stomachs. The reason is that their hands block the light and cause hand shadows. Today's textbooks are mostly printed on coated paper, with a bright surface that strongly reflects the light, which can cause visual fatigue and blurred vision, and is also the cause of myopia. Existing desk lamps have various styles, and the height and placement are not standardized when used, all of which require reasonable guidance during use. The above-mentioned problem of elementary school students who like to write on...

AI Technical Summary

Problems solved by technology

In addition, the strong contrast between the writing area and the surrounding lighting is also the cause of visual fatigue. Often the brightness of the writing area reaches the maximum, but because no other lights are turned on in the room, the surrounding area is dark, which is also an unscientific use of light.

There is no special shadowless table lamp product on the market now, but there is a table lamp for infrared monitoring of sitting posture, which is realized by the infrared sensor on the lamppost or on the lampshade. The infrared emitting diode and the infrared receiving diode are made together, and the infrared emitting diode emits infrared rays. , after meeting the human body, the infrared receiving diode senses it and sends out a sound to remind you to sit upright

However, this method is not accurate enough, and cannot accurately and effectively monitor the sitting posture of students.

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