LED street lamp

Abstract

The invention provides an LED street lamp which provides illumination for traffic roads and avoids generating dazzle to drivers; the LED street lamp comprises an LED light source and a light guide element, wherein the LED light source and the light guide element form a luminous module with installation height thereof lower than eye height of the vehicle drivers and generated light thereof forming a depression angle with the road surface for the light to be cast to the road surface; in addition the luminous module has a light divergence angle of less than or equal to 45 degrees on a plane vertical to the road surface, the luminous module has a larger light divergence angle in the horizontal direction extending from the road than the module does in the direction vertical to the road surface. The LED street lamp can avoid generating dazzle affecting the drivers and features convenient installation and maintenance.

Description

technical field [0001] The invention relates to a road lighting lamp, in particular to a street lamp using light emitting diodes. Background technique [0002] With the continuous development and application of semiconductor devices, light-emitting diodes (Light Emitting Diode, LED) are more and more widely used in the field of lighting due to their advantages such as long life and low power consumption, such as using light-emitting diodes to make street lamps, etc. Outdoor light fixtures. [0003] Common street lamps using light-emitting diodes generally install light-emitting diode light sources on light poles, and emit light downwards to illuminate the road. However, since the light of the light emitting diode light source is irradiated from top to bottom, the driver in driving will be irradiated by the light to the eyes and produce glare, which will not only cause discomfort to the driver, but also cause potential safety hazards. In addition, the light poles of street ...

AI Technical Summary

Problems solved by technology

However, since the light of the light emitting diode light source is irradiated from top to bottom, the driver on the road will be irradiated by the light to the eyes and cause glare, which will not only cause discomfort to the driver, but also cause potential safety hazards

In addition, the light poles of street lights are generally high, which makes the installation and maintenance of this kind of street lights very inconvenient.

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