Abstract: Provided is a multi-channel, bi-directional optical communication module.

Abstract: Provided is a multi-channel, bi-directional optical communication module.

Abstract: An optical system may include: a first lens having positive refractive power facing an object, the first lens having a first convex face facing the object; a second lens having positive refractive power, the second lens having a second convex face facing the object; a third lens having negative refractive power, the third lens having a third concave face facing an image sensor; a fourth lens adjacent to the third lens; a fifth lens adjacent to the fourth lens, the fifth lens having a fourth face facing the object, the fourth face being convex where the fifth lens intersects the optical axis; and a sixth lens adjacent to the fifth lens. The characteristics of the optical system satisfy equation, 0.4<f/f2<1/6 (Here, “f” represents a focal distance of the optical system, and “f2” represents the focal distance of the second lens).

Abstract: An electronic device according to various embodiments includes a display panel and an image sensor disposed below at least a partial area of the display panel. The image sensor includes a lens unit including a first lens for modifying a path of a portion of reflected light and a second lens for modifying a path of another portion of the reflected light, an optical sensor including a first light-receiving sensor and a second light-receiving sensor, and at least one light-shielding member disposed between the first light-receiving sensor and the second light-receiving sensor.

Abstract: According to one or more embodiments of the present disclosure, an optical system may include: a first lens having a positive refractive power and disposed along an optical axis and to face an object, the first lens further having a first convex face facing the object; a second lens having a positive refractive power and disposed along the optical axis adjacent to the first lens, the second lens further having a second convex face facing the object; a third lens having a negative refractive power and disposed along the optical axis adjacent to the second lens, the third lens further having a third concave face facing an image sensor; a fourth lens disposed along the optical axis adjacent to the third lens, the fourth lens being an aspherical lens; a fifth lens disposed along the optical axis adjacent to the fourth lens, the fifth lens being an aspherical lens and having a fourth face facing the object, the fourth face being convex where the fifth lens intersects the optical axis; and a sixth lens disposed alo