LED (Light-emitting Diode) street lamp with adjustable spectrum in foggy days

Abstract

The invention belongs to the technical field of semiconductor lighting devices, and particularly relates to an LED (Light-emitting Diode) street lamp with adjustable spectrum in foggy days. The street lamp comprises an LED street lamp part with the adjustable spectrum, a remote control device and a manual control panel, wherein the LED part internally comprises multiple groups of LED package devices with different light colors which are mixed to emit white light; the LED package devices at least comprise one group of yellow light packaging devices with the peak wavelength of 570-600nm; each group of packaging devices is controlled by independent drive, and has adjustable power. The street lamp can emit white light at night with favorable visibility, and provides illumination for roads; the street lamp can be switched to emit yellow light with strong fog permeability in foggy days with poor visibility or under severe dust-haze weather, and the radiation flux of the yellow light is enhanced. The street lamp can provide favorable illumination environment for the roads at different weather conditions, so that the traffic accident rate can be effectively reduced, and the road traffic security is improved; the street lamp is flexible, simple and convenient to control, has strong operability, and can be widely applied in various occasions such as docks, airports and tunnels.

Description

technical field [0001] The invention belongs to the technical field of semiconductor lighting devices, and in particular relates to an LED street lamp with adjustable spectrum in foggy weather. Background technique [0002] LED is a high-efficiency and energy-saving light source. With the maturity of LED lighting technology, its application in street lamps has become more and more extensive, gradually replacing traditional gas discharge lamps. The use of LEDs also enables road white lighting, improves the resolution of small objects, and provides better and safer lighting for pedestrians and vehicles. However, in foggy and hazy weather, white light does not have strong fog penetration; while yellow light with a wavelength of 580-600 nm has good fog penetration, which can better illuminate the road. How to balance white lighting and foggy yellow lighting is an important issue facing LED street lamps. [0003] The definition of fog in meteorology is any weather phenomenon in...

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Problems solved by technology

[0006] The object of the present invention is to propose an LED street lamp with adjustable spectrum in foggy days, which emits white light to provide road lighting in normal times, and emits yellow light with strong fog penetration to provide lighting in foggy days. Sky yellow lighting problem

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