Young Optics Inc.

Yi-hsueh Chen

Shuo-chieh Chang

A fixed focus lens includes a first lens group with a negative refractive power, an aperture stop, and a second lens group with a positive refractive power arranged in order from a first side to a second side. The first lens group has at least two lenses including at least one aspheric lens. The second lens group includes at least five lenses, the at least five lenses comprising a first compound lens and a second compound lens. A difference between a maximum Abbe number and a minimum Abbe number for all lenses of the first compound lens is greater than 50, and a difference between a maximum Abbe number and a minimum Abbe number for all lenses of the second compound lens is greater than 45.

Growing community of inventors

Hsinchu Science Park, Taiwan

Yi-hsueh Chen