Dyed lenses, whether yellow, red or blue, will filter out some light. Driving at night with these glasses is the same as driving at night with sunglasses. Therefore, the researchers advise consumers not to try to improve the safety of driving at night by using these glasses.
Researchers from Harvard Medical School in the United States called 18 young people with an average age of 27 to 28 and 4 elderly people with an average age of over 70 to take 8 night driving simulation tests, each lasting about 10 minutes. Drivers need to honk their horns as soon as they see pedestrians.
In the simulation scene, pedestrians wear either dark blue shirts or orange shirts, and drivers are sometimes disturbed by the lights of the opposite car, and sometimes they drive in the dark. The results show that people wearing yellow glasses can't notice pedestrians faster than people wearing ordinary glasses.
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Wearable fatigue driving early warning system invented by six students of South China Normal University. The project has entered the Guangdong Challenge Cup final, and the next step will be to apply for a patent.
Compared with ordinary glasses and watches, fatigue driving warning glasses and watches are slightly larger and heavier. The team installed a small camera on the glasses to extract eye images, and analyzed the blink frequency of the eyes through the chip to determine whether the driver was "dozing off". At the same time, it can also analyze the driver's mental state by calculating the time when the driver opens and closes his eyes.
In addition, the glasses are equipped with an acceleration sensor, which can detect the driver's head movement-when he is tired and sleepy, when the angle of his head downward is greater than that in the awake state, the glasses will vibrate slightly to remind the driver to stop driving.
People's Network-Warning drivers of fatigue driving with glasses and watches
People's Daily Online-Popular Science: Yellow lenses can't help drivers improve their night vision.