Reading lamp capable of automatically adjusting brightness

Abstract

The invention discloses a reading lamp capable of automatically adjusting brightness. Through adjustment of the rotation of a rotary table relative to a base, the rotation of a second supporting rod relative to a first supporting rod and the rotation of a lamp holder relative to the second supporting rod, a user can flexibly adjust the position of the lamp holder in three dimensions according to the change of the read position and the posture; meanwhile along with the change of the position direction of the lamp holder, a first detector and a second detector on the lamp holder can respectively detect the distance of the lamp holder to an illuminated object as well as the brightness in the illumination area; a controller selects a first lamp bead to illuminate and / or a second lamp bead to illuminate according to detection signals of the first detector and the second detector, and controls a first brightness adjuster and / or a second brightness adjuster to adjust the brightness of the first lamp bead and / or the second lamp bead to realize automatic adjustment of the brightness, so that the function of protecting eyesight of the user is achieved, and the electrical energy is saved.

Description

Technical field [0001] The invention relates to the technical field of lamps, in particular to a reading lamp with automatic brightness adjustment. Background technique [0002] Semiconductor lighting LED includes LED bulbs, LED fluorescent lamps, LED downlights, LED spotlights, LED desk lamps and other products. Traditional desk lamps generally use incandescent bulbs or compact fluorescent tubes as the light source, and their functions are relatively simple, with only a switch function, and individual configuration with 1-2 gear dimming functions. Because LED light sources have many advantages such as full curing, high reliability, and good energy-saving effects, there have been many desk lamps that use LEDs as light sources. These desk lamps are generally just a simple replacement of the light source, and an LED light source is used to replace the incandescent lamp. Or fluorescent lamps, some improvements have been made and some dimming functions have been added. For example, ...

AI Technical Summary

Problems solved by technology

Traditional desk lamps generally use incandescent bulbs or compact fluorescent tubes as light sources, and their functions are relatively single, with only switch functions, and individual configurations have 1-2 dimming functions.

Because the LED light source has many advantages such as full curing, high reliability, and good energy-saving effect, there have been many desk lamps using LED as the light source. Or fluorescent lamps, some have been improved to some extent, and some dimming functions have been added, such as adjusting the current of the light source through a knob to adjust the brightness of the light source, but there is still a lot of room for improvement in terms of intelligent control, such as using touch Come to the switch of the console lamp, use touch to adjust the brightness of the desk lamp, use touch to adjust the color temperature of the desk lamp, etc.

Images