Light-emitting diode (LED) indicator

Abstract

The invention provides a light-emitting diode (LED) indicator. The LED indicator comprises a plurality of LED devices, wherein the LED devices are arranged on an annular aluminum substrate; the annular aluminum substrate is sleeved on a lock core and is embedded in a lock hole of a door; one face, provided with the LED devices, of the aluminum substrate is outwards; a half of semi-transparent hollow columnar tube is sleeved around the lock core; one end face of the columnar tube is contacted with the aluminum substrate; the other end face of the columnar tube and the outer side of the door are positioned on the same plane; and the LED devices are connected with a constant current electronic module and a driving switch in series. When the door is required to be opened at night, the driving switch is automatically or manually turned off, and the indicator illuminates to clearly indicate the position of the lock core, so a user does not worry about finding the lock hole any more, and the door opening speed and the convenience are greatly improved.

Description

Technical field [0001] The invention relates to the field of LED lighting, in particular to an LED indicator. Background technique [0002] LED is a semiconductor light-emitting diode. LED energy-saving lamps use high-brightness white light-emitting diodes as light sources. They have high luminous efficiency, low power consumption, long life, easy control, maintenance-free, safety and environmental protection; Bright, colorful, low loss, low energy consumption, green and environmental protection, suitable for long-term lighting in families, shopping malls, banks, hospitals, hotels, restaurants and other public places. [0003] With the miniaturization of portable electronic products, LED backlights have more advantages. In daily life, we often encounter this situation. When we go home at night, we take out the key to open the door but cannot find the key hole. Even if the light is on, Because the keyhole is small, it is impossible to locate the lockhole quickly and accurate...

AI Technical Summary

Problems solved by technology

[0003] With the miniaturization of portable electronic products, LED backlights have more advantages. In daily life, we often encounter this situation. When we go home at night, we take out the key to open the door but cannot find the key hole. Even if the light is on, Due to the small keyhole, it is impossible to locate the lockhole quickly and accurately, resulting in a lot of time wasted in the process of opening the door

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