A new Strategy Analytics report has examined the increasing use of LED light sources in the automotive sector and the emergence of the laser high-beam, as well as developments that increase resolution in beam pattern design, including matrix LED headlights, plus the use of LCD panels and DLP technology.
Matrix LED headlights use many different light diodes arranged in a grid pattern that can be dimmed individually to avoid glare for other road users. This feature enables the driver to use the high beam more often and thus, enhance safety.
They were once the preserve of the premium auto sector, due to their complexity and high cost. Matrix LED headlights generate an Adaptive Driving Beam from the control of each individual light source but aren’t permitted under US legislation.
However, the cost of using LED light sources in headlight systems is decreasing rapidly, with the possibility of legislation amendments in the US. Senior analyst Kevin Mak commented:
“Developments in LEDs have enhanced their efficiency and performance, so that associated thermal management in LED headlights can move to a less costly passive system. Furthermore, matrix LED headlights can offer design flexibility, which increases functionality in headlights, such as by illuminating virtual lane markings or warning the driver of the presence of hidden pedestrians.
Rival dynamic Adaptive Front-light Systems use electrically-actuated projector modules, which are bulkier and consume more power. With recent cost reductions in using LED, matrix LED headlights are starting to enter the mass market, with models such as the 2015 Opel Astra and the 2018 Ford Focus leading the way”.