Optical lens system

An optical lens system comprising:

• 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 optical lens system satisfies the following expressions:
• 0.15≤(DL1-L2)/OAL ≤0.4,
• 0.6≤TTL/IH≤0.9
• where DL1-L2 denotes a distance from a center of a first surface of a first lens closest to an object to a center of a second surface of a second lens arranged directly next to the first lens, and OAL denotes a distance of 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, and wherein IH denotes a height of an effective image and TTL denotes a distance from a center of the first surface of the first lens to the image sensor;
• wherein the lens group includes a total of six lenses sequentially arranged on the same optical axis, including the first and second lenses.