Single focus lens and photographic apparatus including the same
AssigneeSamsung Electronics Co., Ltd.
InventorDong-woo Kim
Life of this patent
Estimating the term…
Abstract
A single focus lens including: a first lens group having a negative refractive power; a second lens group having a positive refractive power, the second lens group being arranged to move in a direction that is transverse to an optical axis of the single focus lens; a third lens group having a negative refractive power that is arranged to perform a focusing function; and a rear lens group disposed between the third lens group and an image side of the single focus lens, wherein the first lens group, the second lens group, the third lens group, and the rear lens group are ordered sequentially from an object side of the single focus lens to the image side of the single focus lens.
Claims14
A single focus lens comprising:
- a first lens group having a negative refractive power;
- a second lens group having a positive refractive power, the second lens group being arranged to move in a direction that is transverse to an optical axis of the single focus lens;
- a third lens group having a negative refractive power that is arranged to perform a focusing function;
- a stop disposed between the second lens group and the third lens group, and
- a rear lens group disposed between the third lens group and an image side of the single focus lens, wherein the first lens group, the second lens group, the third lens group, and the rear lens group are ordered sequentially from an object side of the single focus lens to the image side of the single focus lens.
A photographic apparatus comprising:
- a single focus lens;
- and
- an image sensor configured to receive an image focused by the single focus lens, wherein the single focus lens comprises a first lens group having a negative refractive power, a second lens group having a positive refractive power, the second lens group being arranged to move in a direction that is transverse to an optical axis of the single focus lens, a third lens group having a negative refractive power that is arranged to perform a focusing function, a stop disposed between the second lens group and the third lens group, and a rear lens group disposed between the third lens group and an image side of the single focus lens, wherein the first lens group, the second lens group, the third lens group, and the rear lens group are ordered sequentially from an object side of the single focus lens to the image side of the single focus lens.
Dependencies are inferred from the claim text.