Abstract
This study developed an optical module for laser headlamps with a tunable light field. Laser headlamps have high and low beam lighting functions that are applied by changing the numbers of unit headlamps. For regulatory validation, we validated the project in accordance with the Regulation No. 112 of the Economic Commission for Europe (ECE) to determine whether the results meet the regulatory requirements or not. The proposed design increased the lighting distance by 2.14 times and decreased the size of the mechanism by 45% relative to the values for LED headlamps. High and low beam lighting functions were provided by the same laser sources.
Highlights
In the past, the reflector of traditional steam headlamps was made up of a parabolic reflector and a lampshade with a complex pattern
The headlamp in this study can can combine two two reflective lenseslenses to form form a mirror set in oval shape when the headlamp is operated in the high beam mode
When the a mirror set in oval shape when the headlamp is operated in the high beam mode
Summary
The reflector of traditional steam headlamps was made up of a parabolic reflector and a lampshade with a complex pattern. The lamp includes a reflector with different curvatures and a shutter with a stepped structure, and the light is reflected by the reflector to different positions In this design, a wide illumination area can be projected [5]. Light sources are placed on the other side of the reflective surface to provide an additional lighting function for the lamp module, such as daytime running light [6] Analysis of these previous works shows that researchers mostly focused on the auto lamp of the illumination area, followed by the modulating function of low/high beams. This work takes advantage of the laser light source to design a lamp module with a tunable low/high beam function
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