Birch, Stewart, Kolasch & Birch, LLP
Imaging lens and imaging apparatus
An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens group having a positive power as a whole; a second lens group, in which an object-side surface of a lens closest to the object side is concave toward the object side; a third lens group of a single lens having a positive power; and a fourth lens group having a negative power as a whole.
Fujinon Corporation
G
G02B
inventional
Takashi Taro
Suzuki Asami