Fujinon belongs to the Fuji Film company. Fujinon is used for optical lenses of various sizes and dimensions. These could include soft focus lenses, enlarging lenses, etc.

Focus contact lenses can be purchased from many companies on the internet. A few of the companies that sell Focus contact lenses include but not limited to, VisionDirect, GetLenses, and WeLoveLenses.

Early lenses were called eyepieces.

The Hubble Telescope uses both mirrors and lenses to focus on images.

Plastic ophthalmic focus lenses accounted for approximately 18.3 percent of the industry's shipments