Light-emitting diode (LED) lighting device and lighting method

Abstract

The invention discloses a light-emitting diode (LED) lighting device, which comprises a drive part, an electric energy storage part and an LED light source part, wherein the electric energy storage part converts alternating current input from the outside into direct current and carries out charging to store electric energy for use by the device when an external power supply is cut off; and the drive part can automatically carry out control of brightness increasing, reducing or quenching on the LED light source when the device is communicated with the external power supply or the external power supply is cut off. A lighting method disclosed by the invention comprises the steps as follows: when the LED device is communicated with the external power supply, the LED light source is in a low-brightness working state firstly; the lighting brightness is gradually increased, is increased to rated power of the LED light source within a certain period of time, and then is kept at the maximum; and when the external power supply is cut off, the lighting brightness of the LED light source is gradually reduced until being quenched, or is kept at low brightness for a certain period of time and then quenched, so that lighting experience in turn-on and turn-off operations is relatively healthy, comfortable and humanized.

Description

technical field [0001] The present invention relates to the technical field of lighting, in particular to the technical field of LED lighting. Background technique [0002] LED lighting technology is widely used in the world due to its low energy consumption, low cost, high brightness and long life. The drastic changes in light when switching the light on and off will not only cause discomfort to the eyes and damage the health of eyesight, but also cause inconvenience to people's lives, and even lead to the occurrence of certain unsafe factors. For example, after turning off the lights in a completely dark environment, the lighting equipment is suddenly switched from the strong light state to the off state, people will feel dizzy and lose orientation and visual perception for a short time. It is easy to cause injuries such as collisions and falls. However, other existing methods of adjusting the brightness of lighting equipment, such as using remote control circuits, poten...

AI Technical Summary

Problems solved by technology

[0002] LED lighting technology is widely used around the world due to its advantages of low energy consumption, low cost, high brightness, and long life. The drastic light changes during the operation of switching lights will not only cause eye discomfort and damage vision health, but also cause inconvenience to people's lives, and even lead to certain unsafe factors.

For example, after turning off the lights in a completely dark environment, the lighting equipment suddenly switches from the strong lighting state to the extinguished state, people will feel dizzy, and lose orientation perception and visual perception for a short time. At this time, when leaving the switch position It is easy to cause injuries such as collisions and falls

However, other existing ways to adjust the brightness of lighting equipment, such as the use of remote control circuits, potentiometers, gear switches and other adjustment methods, have disadvantages such as relatively complicated operation, inconvenient use, changes or additional wiring, configuration of remote controls, and high cost. And it does not have the function of automatically performing humanized lighting after the switch lamp operation described in the present invention

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