Road traffic dual-color illuminating apparatus

Abstract

The invention relates to a road traffic double-color lighting device, which comprises a light-reflecting lampshade (4), a plurality of white lighting units (1), and a plurality of yellow lighting units (2), wherein the white lighting units (1) and the yellow lighting units (2) are light-emitting diodes, and the white lighting units (1) and the yellow lighting units (2) are respectively connected with a power control unit after grouping parallel connection. The road traffic dual-color lighting device has the advantages that the same device can emit white and/or yellow light to achieve full color visual effect and transmission effect, thereby greatly saving road traffic lighting device laying cost, and improving the applicability of the road traffic lighting device; meanwhile, the device is characterized by time-shared control and grouping setting, thereby adjusting brightness, color, on/off of the road traffic dual-color lighting device as required so as to save energy; and uniformly distributed radiating units can better solve the problem of heat dissipation, and prolong the service life of the device.

Description

technical field [0001] The invention belongs to the field of road lighting equipment, in particular to a lighting device capable of changing the color of street lamps. Background technique [0002] The lighting of roads, including bridges, tunnels and other transportation facilities is one of the important components of urban, land transportation network and rural transportation infrastructure. The basic facility for lighting is a bulb or lamp, which was originally an electric light invented by American Thomas Edison, which kicked off the history of power lighting. The original incandescent lamp was composed of tungsten filaments, and the light emitted was yellowish; with the development of technology, sodium lamps, mercury lamps, and LED lamps were gradually used as ordinary lighting devices. At the same time, sodium lamps and mercury lamps were also used in road traffic lighting. Mercury lamps have strong white light effect, and sodium lamps have strong yellow light trans...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the road traffic lighting scheme of erecting light poles and installing lighting devices of a certain color separately has the problem that white lighting and yellow lighting cannot be provided at the same time in a single lighting device.

In the prior art, in order to have two kinds of light sources of white and yellow at the same time, two independent lighting devices must be built respectively, so the cost is high, the maintenance cost is high, and the waste is also large.

In addition, halogen lamps such as mercury lamps and sodium lamps generate too much heat, the thermal structure design is simple, the heat dissipation is not good, and they cannot work stably for a long time

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