a desk lamp

Abstract

The invention provides a table lamp comprising a base, a lamp rod, a support, a lamp body, a first sensor, a second sensor, first photoelectric sensors, a second photoelectric sensor and a control device. The control device is used for acquiring data detected by the sensors and the photoelectric sensors and controlling lighting intensity of the lamp body. According to the arrangement, the sensors are arranged on movable joints of the table lamp and used for detecting the data in case the table lamp changes the form thereof, the data are calculated by the control device, the central point of a lighting plane is found accurately, and lighting intensity of the lighting plane of the table lamp is calculated based on the data detected by the photoelectric sensors, accordingly increasing / decreasing lighting intensity of the lamp body.

Description

technical field [0001] The invention relates to the field of lighting equipment, in particular to a desk lamp. Background technique [0002] Desk lamp is a kind of lighting tool that generally uses in people's life. Moreover, most of the table lamps on the market are adjustable in angle. At the same time, with the development of microelectronics technology, the lighting of table lamps is also developing towards intelligence, and the intensity of light can be intelligently adjusted. It uses a photoresistor to measure the ambient light, and analyzes the ambient light to make the intensity of the lamp reach a certain value. The disadvantage of this desk lamp is that the light on the work surface will be affected by the ambient light, making the light on the work surface unstable, and when the position of the desk lamp or its own angle changes, the light intensity on the work surface opposite to the desk lamp will naturally change. There is no guarantee that the intensity of l...

AI Technical Summary

Problems solved by technology

The disadvantage of this desk lamp is that the light on the work surface will be affected by the ambient light, making the light on the work surface unstable, and when the position of the desk lamp or its own angle changes, the light intensity on the work surface opposite to the desk lamp will naturally change. There is no guarantee that the intensity of light on the working surface will remain constant.

The better ones in the prior art may detect the illuminance of the working surface, but when the position of the desk lamp or its own angle changes, it still cannot keep the illuminance of the working surface constant

Moreover, in the prior art, the human eye generally operates according to the approximate range of the light irradiated by the lamp body itself, and cannot prompt the current central point of the irradiated light of the desk lamp, so that the user can conveniently determine the best operating range of the working surface

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