Luxottica Group S.p.A. is an Italian eyewear conglomerate and the world's largest company in the eyewear industry. It is based in Milan, Italy. 

As a vertically integrated company, Luxottica designs, manufactures, distributes and retails its eyewear brands  including LensCrafters, Sunglass Hut, Apex by Sunglass Hut, Pearle Vision, Sears Optical, Target Optical, Eyemed vision care plan, and Glasses.com. Its best known brands are Ray-Ban, Persol, and Oakley.

Oakley is the best- selling eyewear brand in Luxottica Group.  The brand based in Lake Forest, California, designs, develops and manufactures sports performance equipment and lifestyle pieces including sunglasses, sports visors, ski/snowboard goggles, watches, apparel, backpacks, shoes, optical frames, and other accessories.

Most items are designed in house at their head office, but some countries hold exclusive designs relevant to their market. Oakley currently holds more than 600 patents for eyewear, materials, and performance gear.

Their products relies heavily on research labs to develop innovative materials and precision optical lenses. The combination of performance eyewear and relaxed street style has made Oakley the biggest selling brand in the sunglasses market.

Oakley was started by James Jannard in 1975 out of his garage with an initial investment of $300. In 1980, Jannard released a pair of goggles called the O-Frame. With the 'Oakley' logo present on the strap, the brand garnered increasing recognition and prominence throughout the sports industry. In 1983, Oakley began selling ski goggles.

The first Oakley sunglasses; Factory Pilot Eyeshades, were sport-oriented, resembling goggles and were released in 1984. The company went public in 1995, raising $230 million.

On June 21, 2007, Luxottica announced a plan to purchase Oakley in a cash deal worth $2.1 billion, paying a 16% premium over the extant share price. The deal was completed on November 15, 2007, making Oakley part of a portfolio that includes brands such as Ray-Ban, Persol, and Vogue.

According to alphasunglasses and en.wikipedia