Search International and National Patent Collections
|1. (WO2017155303) PHOTOGRAPHING LENS OPTICAL SYSTEM|
|Applicants:||ACE SOLUTECH CO., LTD.
|Inventors:||JUNG, Pil Sun
KIM, Dong Young
AN, Chi Ho
|Title:||PHOTOGRAPHING LENS OPTICAL SYSTEM|
A photographing lens optical system is disclosed. The disclosed lens optical system comprises first, second, third, fourth and fifth lenses sequentially arranged from an object in the direction of an image sensor. The first lens can have a negative (-) refractive power and have a concave output surface with respect to the image sensor. The lens optical system can satisfy the conditional formula, 100° < FOV < 200°, and/or the conditional formula, 1 < TTL / ImgH < 2, wherein FOV denotes an angle of view of the lens optical system, TTL denotes a distance from the incident surface of the first lens to the image sensor, and ImgH denotes a diagonal length of a maximum pixel area of the image sensor.