As those born in the 80s, 90s, and even 00s become the main force in the automobile consumption market, personalization and fashion have become important standards for their choice of cars. Under such a consumption trend, lights, as a part of the car, not only serve the lighting function but are also tasked with displaying personality and brand image.

The Multifunctionality of Ground Projection Units

Automobile projection lights, also known as ground lights or Logo welcome lights, have attracted the attention of many young consumers since their introduction as an exterior ambient lighting fixture. Not only do they provide lighting for the vehicle at night, but they also display unique Logos or patterns that showcase the owner's personality and status, enhancing the vehicle's technological and ceremonial feel and improving the night-time welcome effect. With technological advancements, modern projection lights, in addition to basic lighting functions, also feature signal indication and information interaction, becoming a focal point favored by lighting manufacturers, OEMs, and end consumers.

Classification of Ground Projection Units Based on Imaging Principles

Film Lens Projection Lights

Film lens projection lights use the principle of lens imaging, similar to the working method of a film projector. They convert the light emitted by an LED light source into uniform parallel light through a condensing system and film lens and project the pattern to the designated area through an imaging system. Although film lens projection lights have a compact structure, low cost, and clear patterns, their fixed patterns cannot be updated, nor can they achieve dynamic effects, which seems somewhat limited in a market with growing demands for personalization.

Microlens Array Technology (MLA)

Projection lighting systems based on microlens array (MLA) utilize LED light sources, collimating lenses, and precisely manufactured microlens array components. MLA technology achieves highly accurate image projection by superimposing the images corresponding to each microlens to the same position. The tiny offsets of each microlens require high-precision nano-level manufacturing to ensure the clarity and accuracy of the projection. Compared to traditional film lens projection lights, MLA technology enables finer pattern projection and offers greater flexibility and updateability, meeting the market's higher demands for personalization and dynamic effects.

DLP Projection Technology

DLP technology is one of the current popular automotive projection technologies, similar to the working principle of a mini projector. It can achieve full color, full dynamics, OTA updates, and custom functions. Despite the significant advantages of DLP technology, cost remains a challenge for its widespread adoption.

In summary, with technological advances and market demand uplift, ground projection units, as an innovative form of automotive lighting, play an important role in enhancing driving experience and safety. They also add unique brand value and a sense of technology to cars through personalization and advanced functions. With continuous evolution of future technologies, ground projection units have broad application prospects in the automotive industry.