Light-emitting diode (LED) headlamp for motorcycle

Abstract

The invention discloses a light-emitting diode (LED) headlamp for a motorcycle. According to the LED headlamp, a middle bulge, a left bulge and a right bulge are arranged on the bottom surface of a passing light inner lens of a passing light source assembly; the surface of the middle bulge is provided with an arc surface which has the curvature radius of 0-110mm; the middle bulge has a luminous angle within the range from -0.9 degree to 0.9 degree; one surface of the left bulge is an arc surface, and the other surface of the left bulge is a vertical plane; the arc surface has the curvature radius of 214-517mm; the left bulge has a luminous angle within the range of -1 degree to -0.9 degree; one surface of the right bulge is an arc surface, and the other surface of the right bulge is a vertical plane; the arc surface has the curvature radius of 214-618mm; and the right bulge has a luminous angle of 0.9-2.0 degrees. After light rays pass through the passing light inner lens, a passing light type with an obvious dividing line can be obtained, the large-angle light rays can be effectively utilized, and the utilization rate of luminous flux is effectively improved, so that the light irradiation distance and width are obviously increased, and a blind area is prevented from occurring in a passing light irradiation area.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to a motorcycle LED headlight. Background technique [0002] LED is known as the fourth-generation light source, which has the advantages of long life, high luminous efficiency, and no radiation. The theoretical life of LED exceeds 100,000 hours, and the luminous efficiency is as high as 90%, while the energy consumption of the same luminous flux is only 8% of that of incandescent lamps, and 30% of that of halogen lamps. , LED has been widely cited in the field of lighting. [0003] At present, the headlights of automobiles and motorcycles mainly use halogen lamps as the light source, and reflect the light in front of the vehicle through the reflection of the reflective bowl. Because the isolation of the halogen light source is lower than that of the LED, the heat generation is large and the life is short. And the utilization rate of light is low by adopting the mode of reflective bow...

AI Technical Summary

Problems solved by technology

Because the halogen light source is less lonely than LED, it generates a lot of heat and has a short lifespan.

And the utilization rate of light is low by adopting the reflection of the reflective bowl, so the existing automobile headlights generally have the problems of high energy consumption, weak illumination, large heat generation, short life, and there are certain safety hazards

[0004] Due to the wide application of LED and its remarkable advantages, many people try to use LED as the light source of headlights for automobiles or motorcycles, but due to the unreasonable structural design of the LED light-emitting unit, the light utilization rate of the light-emitting unit is not good High, poor heat dissipation, serious light attenuation, and can not form the ideal low beam spot and high beam spot that meet the standard

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