American Optical is the world's oldest eyewear manufacturer, established in 1833.

It also provides advanced high technology to fields such as precision instruments, medicine, electronics, automotive, and military.
Its consistently innovative approach has led to the successive creation of industry-first eyewear, including rimless frames, cable temples, and nose pads.

With a strong commitment to design, the round-lens "Windsor" model, which took 20 years to develop, was beloved by figures such as John Lennon, Ernest Hemingway, and Mahatma Gandhi, making the brand's presence known worldwide.

Furthermore, the "Original Pilot Sunglasses," synonymous with AO sunglasses, have continued to accompany U.S. military pilots.

The "straight temple" design, which allows the glasses to be worn while wearing a helmet, is a prime example of their iconic products.

In addition, during the world's first moon landing by Apollo 11 in 1969, Commander Neil Armstrong and his crew wore these glasses.

The product used at that time is still on display at the Smithsonian National Air and Space Museum.