Abstract
The illumination optical system using a laser diode has advantages such as small size and high efficiency compared to an optical system using a conventional light source. In particular, its advantages can be maximized in high-resolution spatial light modulation. Based on these advantages, research to apply laser diode scanning to high-resolution adaptive driving beam (ADB) is currently being actively conducted. To construct a high-resolution illumination optical system for an ADB system using a single laser diode as a light source, the configuration of an optical scanning system is essential. In the general high-speed scanning method, the optical power at the center is relatively smaller compared with that at the edge because of the faster scanning speed when the center is illuminated. This causes large losses in automotive lighting optical system where the optical power in the center should be higher. Herein, we propose an optical system that can change the light power distribution of the center and the edge by applying a prism. In addition, by producing a prototype of an optical scanning system, the effect of efficiently distributing optical power by the designed optical scanning system was experimentally verified.
Highlights
The headlamp is an important device in the vehicles
An light emitting diodes (LEDs) headlamp can be configured to a small size, thereby minimizing the space occupied by the headlamp and allowing stylish vehicle design
When the optical power distribution was formed in this manner, it was difficult to use the maximum optical intensity from the light source because of the inefficient headlamp distribution
Summary
The headlamp is an important device in the vehicles. A well-designed headlamp system can provide safe and comfortable driving conditions for the driver at night or in bad weather. An LED headlamp can be configured to a small size, thereby minimizing the space occupied by the headlamp and allowing stylish vehicle design. A headlamp using laser diode as a light source has been developed [3,4,5]. A small headlamp using laser diode can revolutionize the exterior design of a vehicle [6]. Another advantage of laser diode-based headlamps is their luminous efficiency. Laser diode-based headlamps have a lighting distance that is more than twice that of LED-based headlamps. Laser diode-based headlamps offer many advantages, motivating many automobile manufacturers to develop laser diode-based headlamps. BMW will apply laser-based headlamps to other models [8,9]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
