Ray-Ban is called Ray-Ban in English, where Ray stands for glare and Ban stands for blocking. Blocking glare is the essence of sunglasses. Ray-Ban has produced sunglasses with inclined mirrors for the US Air Force, providing users with the greatest vision protection. In fact, for a long time, Ray-Ban was synonymous with sunglasses that blocked strong light. The birth of Ray-Ban sunglasses originated from the distress of a lieutenant in the US Air Force. 1923, when the lieutenant flew a small plane across the Atlantic Ocean, he was deeply troubled by the strong sunshine. After returning to the base, he even had adverse reactions such as nausea, headache and dizziness. Based on this, in 1930, Bausch & Lomb developed Ray-Ban sunglasses which can absorb the most sunlight, emit the least heat energy and keep good clear vision. Ray-Ban sunglasses not only have good protective function, but also the designer's design of its appearance and style highlights the rough and heroic military temperament.