Tech Moment #121: Driving Glasses
The technology of sunglasses is crucial for driving, especially when sunlight can obstruct traffic signals and strain our eyes. However, very dark lenses can hinder color differentiation, which poses risks for drivers. In an interview with Professor Liliane Ventura from the São Carlos School of Engineering at USP, she discussed a patent for methods and systems that measure the transmissive characteristics of translucent objects, particularly focusing on sunglasses suitable for driving. Professor Ventura highlighted the importance of evaluating several attributes of sunglasses, including ultraviolet protection, which is well-known. She also pointed out that some sunglasses are so dark that they prevent drivers from noticing changes in traffic lights. The developed device measures color deviation to ensure that sunglasses allow for appropriate visibility of colors such as red, green, yellow, and blue. The technology uses a spectrophotometer to analyze light transmission through lenses, calculating the ratio of visible light to ensure that drivers can see traffic signals clearly. While conventional methods exist, the new device is designed for ease of use and is portable, providing a good level of precision. The team is seeking commercial partners to bring this innovative product to market and hopes to see it available in optical stores soon. This summary is a reflection of the conversation around the patent for measuring the characteristics of sunglasses and their implications for driving safety.