Optical lens system and electronic device including the same

An electronic device comprising:

• an iris;
• a lens assembly movable in an optical axis direction;
• and
• an image sensor having an image plane configured to form an electronic signal representing an image formed by light from the lens assembly,
• wherein, when focusing the image formed on the image plane, a distance between the iris and the image plane is fixed, and the lens assembly moves in the optical axis direction.

An electronic device comprising:

• a window member;
• a display panel stacked on a rear surface of the window member;
• a lens assembly;
• an iris;
• and
• an image sensor including an image plane configured to form an electronic signal representing an image formed by the lens assembly,
• wherein the iris is fixed with respect to the image plane,
• wherein at least a portion of the iris is located on a same plane as at least a portion of the display panel, and
• the iris is located closer to an object-side than an object-side surface of a lens closest to the object-side of the lens assembly on an optical axis.

An optical lens system of an electronic device, the optical lens system comprising:

• a lens assembly;
• an iris;
• and
• an image sensor configured to form an image of an object corresponding to the lens assembly,
• wherein the lens assembly includes:
• a front lens located closest from an object-side in the lens assembly;
• a first lens having positive refractive power;
• and
• a second lens having negative refractive power,
• wherein the iris, the front lens, the first lens, and the second lens are sequentially arranged from the object-side to an image sensor-side along an optical axis, and
• the optical lens system of the electronic device satisfies Equations 1 and 2 below:
• 1.1
• ≤
• STL
• TL
• ≤
• 1.5
• [
• Equation
• 
• 
• 1
• ]
• 0.2
• ≤
• S
• 
• 
• 1
• EPD
• ≤
• 1.0
• [
• Equation
• 
• 
• 2
• ]
• wherein, STL is a distance from the iris to an image plane of the image sensor on the optical axis, TL is a distance from an object-side apex of the front lens to the image plane on the optical axis, EPD is a diameter of an entrance pupil of the optical lens system, and S1 is a distance from the iris to the front lens).