Safety Enhancements in Granular Surface-emitting Rear Lamps Confirmed
Corporate
Stanley Electric Co., Ltd. (Head Office: 2-9-13 Nakameguro, Meguro-ku, Tokyo; President and CEO: Yasuaki Kaizumi) has developed a granular surface-emitting rear lamp that improves visibility and enhances safety for following vehicles.
Rear visibility is crucial for nighttime driving safety. Our new rear lamp delivers high visibility, striking design, and environmental consideration, and it has already been adopted to mass-produced vehicles. Verification tests confirmed that the improved visibility contributes to greater safety.
This lamp simplifies the conventional design—replacing dozens of LEDs with a single high-lumen, replaceable LED socket. Light diffuses evenly through a custom-designed light guide and enhanced with a granular sparkle effect for greater visibility. As a sustainable product, it also reduces the number of components, helping to lower costs and minimize environmental impact.
【Movie】 Previous uniform illumination and granular illumination
For safe nighttime driving, it is crucial that drivers quickly recognize the movements of surrounding vehicles. Delayed recognition can increase the risk of traffic accidents. This is especially true for motorcycles, which are smaller and harder to detect. Motorcycles, especially those with smaller bodies, are less visible to surrounding drivers, increasing the risk of collisions with other vehicles during turns, merges, or U-turns. Surrounding drivers rely on a motorcycle’s headlamp and rear lamp to recognize its presence and movement.
To enhance safety, we have developed a rear lamp that makes it easier for nearby drivers and pedestrians to detect the movements of motorcycles, helping to reduce the risk of collisions.
Compared to our previous models, which achieved uniform illumination up to 10 mm in height, the newly developed lamp achieves consistent light diffusion up to 30 mm in height (Stanley internal benchmark). This advancement allows for flexible application across a wider range of lamp designs and sizes—from slim motorcycle lamps to larger automobile rear lamps.
While this rear lamp has already been adopted in mass-produced vehicles, we will continue to improve and develop the technology to further enhance safety. We plan to actively propose it to automakers for broader adoption in future models. Additionally, we are exploring further applications in automotive lighting, including interior illumination.