Design and research of automobile laser headlamp

Laser lighting is the future development trend, but it is still not popularized in China. In this paper, we use the LucidShape software to simulate the far-light reflective cup of an automobile and design the middle and high-end models of the universal laser bulb. By using the ray tracing software (TracePro) simulation, it can illuminate about 100 meters. The illumination of a 10.5-watt blue laser is more than 4 times that of a 60-watt halogen bulb. The quantum efficiency of the phosphor, molar extinction coefficient, and molarity are calculated and matched. Blue light is shined on the phosphor to obtain white light. The beam emitted by three 3.5-watt blue lasers is combined, and the beam after the combination will converge and then collimate to irradiate the phosphor to excite yellow light. According to the principle of the additive color method, yellow light and the remaining blue light are mixed to obtain white light. For the high-beam headlights, the fog lamp function is taken into account. The special structure of the phosphor shape can make the middle of the road spot produce white light and yellow light on both sides. The distant target can be found in time on foggy days. If a new type of high beam assembly is developed, it is possible to set up a reflective cup, 10.5 watts of light power irradiation distance of more than 200 meters and put forward the LD/LED program and LED high beam two in one.