Abstract: Disclosed is a photographic optical lens system. The disclosed photographic optical lens system includes a stop, a lens group including at least one aspherical lens, and an image sensor configured to record an image transmitted through the lens group, wherein the photographic optical lens system satisfies the following Expression: 0.15?(DL1-L2)/OAL?0.4??<Expression> where DL1-L2 in Expression denotes a distance from a center of a first surface of a lens closest to an object (hereinafter, referred to as a first lens) to a center of a second surface of a second lens arranged directly next to the first lens, and OAL denotes a distance (a total length of the lens group) from the center of the first surface of the first lens to a center of a second surface of a lens arranged farthest from the object.

Abstract: Provided is a photographing lens optical system. The lens optical system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially arranged from an object to an image sensor. The first lens may have a negative (?) refractive power and have an exit surface that is concave with respect to the image sensor. The lens optical system may satisfy at least one of a condition 100°<FOV<200° and a condition 1<TTL/ImgH<2. Herein, FOV denotes an angle of view of the lens optical system, TTL denotes a distance from an incidence surface of the first lens to the image sensor, and ImgH denotes a diagonal length of a maximum pixel region of the image sensor.

Abstract: Provided are a lens optical system and an imaging device including the lens optical system. The lens optical system includes first to sixth lenses sequentially arranged from an object side toward an image plane side. The first to sixth lenses have negative, positive, positive, negative, positive, and negative refractive powers, respectively. The lens optical system may satisfy 100?FOV?160, and DiaL3?DiaL1?DiaL6 where FOV refers to the field of view of the lens optical system in degrees (°), and DiaL1, DiaL3, and DiaL6 refer to the effective diameters of the first lens, the third lens, and the sixth lens, respectively.

Abstract: Provided are a super wide-angle lens and an imaging device including the same. The super wide-angle lens includes first to sixth lenses arranged from an object side toward an image plane side in this stated order and respectively having negative, positive, positive, negative, positive, and negative refractive powers. The super wide-angle lens may have a field of view of 100 degree or more.

Abstract: Provided is a photographing lens optical system. The lens optical system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially arranged from an object to an image sensor. The first lens may have a negative (?) refractive power and have an exit surface that is concave with respect to the image sensor. The lens optical system may satisfy at least one of a condition 100°<FOV<200° and a condition 1<TTL/ImgH<2. Herein, FOV denotes an angle of view of the lens optical system, TTL denotes a distance from an incidence surface of the first lens to the image sensor, and ImgH denotes a diagonal length of a maximum pixel region of the image sensor.

Abstract: Provided are an optical lens system and an imaging apparatus including the optical lens system. The optical lens system includes first to sixth lenses that are sequentially arranged from an object side toward an image plane side and have negative, negative, positive, positive, negative, and positive refractive powers, respectively. The optical lens system may satisfy 0.15<(L1toL2)/OAL<0.4. Here, L1toL2 (unit: mm) refers to the distance between the center of an entrance surface of the first lens and the center of an exit surface of the second lens, and OAL (unit: mm) refers to the distance between the center of the entrance surface of the first lens and the center of an exit surface of the sixth lens.