Light-distribution LED street lamp

Abstract

The invention relates to a light-distribution LED street lamp. The light-distribution LED street lamp comprises a plurality of light distribution surfaces, wherein each light distribution surface is provided with a plurality of LED lamps; the light distribution surfaces constitute two light distribution groups; the light distribution surface of the first light distribution group and the forward horizontal line of the erection reference plane form an obtuse included angle, and the light distribution surface of the second light distribution group and the reverse horizontal line of the erection reference plane form an obtuse included angle; the divergence angle of each LED lamp installed on the light distribution surface increases as the obtuse included angle between the light distribution surface and the horizontal line of the erection reference plane increases; the whole lamp cap is in the structure of a plane and has a compact structure; and the thickness of the lamp cap is determinedby the light distribution surface with the maximum angle of inclination. The lamp can be very thin, thereby reducing production cost and eliminating the phenomenon of light blocking of the LED lamps on the light distribution surfaces with different angles of inclination as well as the phenomenon of light absorption among adjacent LED lamps. The light-out rate reaches 90%. Thus, the light-distribution LED street lamp ensures sufficient intensity of illumination on the road surface far away from the light source, and realizes light distribution curves required by different illuminated areas. The light-distribution LED street lamp has the advantages of favorable light distribution effect, and uniform intensity of illumination in the illuminated area.

Description

technical field [0001] The invention relates to an LED street lamp, in particular to a LED street lamp with light distribution that makes the lighting curve of the entire light source distributed in a bat-wing shape after light distribution, and belongs to the field of LED lighting. Background technique [0002] In recent years, LED technology has developed rapidly, its luminous efficiency has doubled, and its cost has dropped sharply. LED light sources are widely used in the field of lighting. It has many advantages such as energy saving, environmental protection, and long life. The best way, known as the 21st century green light source, has broad prospects for development. [0003] As a lighting tool, LED street lamps must not only save energy and protect the environment, but also consider the safety and comfort of the lighting environment. This requires scientific and reasonable optical design to make the lamps achieve high efficiency, energy saving, and good lighting qua...

AI Technical Summary

Problems solved by technology

The lamp head is arc-shaped as a whole, so there is a phenomenon of light blocking of LED lamps with different inclination angles, and there is also a phenomenon of light absorption between adjacent LED lamps, which will inevitably reduce the overall light output rate and light distribution effect of LED street lamps.

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