Abstract: A lens assembly is provided. The lens assembly includes a lens including an optical portion that refracts light and a flange portion that extends from the optical portion; an optical film contacting at contacts a first surface of the lens; and a lens barrel configured to accommodate the lens and the optical film, wherein the optical film may include a straight portion that is formed on a portion of a circumference of the optical film, and the lens may include a linear portion that is formed on the first surface of the lens, and is configured to contact the straight portion of the optical film.

Abstract: A lens module includes a first lens barrel in which at least one lens is disposed and including a first threaded portion and a first stepped portion on an outer circumferential surface of the first lens barrel; and a second lens barrel in which at least one lens is disposed and including a second threaded portion and a second stepped portion on an inner circumferential surface of the second lens barrel, wherein the first lens barrel and the second lens barrel are coupled to each other by fitting the first stepped portion and the second stepped portion to each other and screwing the first threaded portion and the second threaded portion to each other.

Abstract: A substrate processing apparatus includes a photoresist coater applying a photoresist film on a substrate, a humidifier increasing an amount of moisture in an ambient to which the photoresist film on the substrate is exposed, and an exposer irradiating the photoresist film exposed to the ambient having the increased amount of moisture with light. The humidifier is disposed between the photoresist coater and the exposer.

Abstract: A camera module includes: a lens module including a plurality of lenses; a housing accommodating the lens module; a reflective member disposed in front of the lens module; an image sensor module to receive light passing through the lens module; and a first light shielding plate disposed in the housing in a space between the lens module and the image sensor module.

Abstract: A lens module is provided. The lens module includes a movable barrel configured to accommodate a plurality of lenses, a fixed barrel configured to accommodate the movable barrel, and a zoom ring configured to accommodate the fixed barrel and including at least one diopter groove on an inner circumferential surface thereof, wherein the diopter groove may include an inclined section that connects two points having different positions in an optical axis direction and respective extension sections which curvedly extend from a first end of the inclined section and a second end of the inclined section.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens including a concave object side surface, a fourth lens, a fifth lens, and a sixth lens sequentially disposed from an object side toward an image side. The optical imaging system satisfies 0.7<TL/f<1.0 and F No.<2.1, where TL is a distance from an object side of the first lens to an imaging plane, f is a total focal length of the optical imaging system, and F No. is the F No. of the optical imaging system.

Abstract: An optical imaging system is provided. The optical imaging system has a first lens, a second lens, a third lens, and a fourth lens disposed in order from an object-side to an image-side. The optical imaging system satisfies the following conditional expressions: F No. ?1.5, 0.5<EPD/TTL <0.7, where EPD is an entrance pupil diameter, and TTL is a distance from an object-side surface of the first lens to an imaging plane.

Abstract: A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

Abstract: A camera module includes: a lens module including a plurality of lenses; a housing accommodating the lens module; a reflective member disposed in front of the lens module; an image sensor module to receive light passing through the lens module; and a first light shielding plate disposed in the housing in a space between the lens module and the image sensor module.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens including a concave object side surface, a fourth lens, a fifth lens, and a sixth lens sequentially disposed from an object side toward an image side. The optical imaging system satisfies 0.7<TL/f<1.0 and F No.<2.1, where TL is a distance from an object side of the first lens to an imaging plane, f is a total focal length of the optical imaging system, and F No. is the F No. of the optical imaging system.

Abstract: A lens assembly includes a lens barrel, a plurality of lenses arranged inside the lens barrel along an optical axis, and a cover member fixed to an end of the lens barrel on a subject side and fixing a last lens of the plurality of lenses on the subject side, wherein outer diameters of the plurality of lenses decrease from the subject side to an image side, and an outer diameter of the lens barrel is constant or smaller from the subject side to the image side.

Abstract: An optical imaging system is provided. The optical imaging system has a first lens, a second lens, a third lens, and a fourth lens disposed in order from an object-side to an image-side. The optical imaging system satisfies the following conditional expressions: F No.?1.5, 0.5<EPD/TTL<0.7, where EPD is an entrance pupil diameter, and TTL is a distance from an object-side surface of the first lens to an imaging plane.

Abstract: A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

Abstract: A camera module includes: a lens module including a plurality of lenses; a housing accommodating the lens module; a reflective member disposed in front of the lens module; an image sensor module to receive light passing through the lens module; and a first light shielding plate disposed in the housing in a space between the lens module and the image sensor module.

Abstract: There are provided a subminiature optical system having a miniature size and capable of obtaining a narrow view angle using only five sheets of lenses, and a portable device having the same. The subminiature optical system includes a first lens convex toward the object side and having positive refractive power. a second lens concave toward an image side and having negative refractive power, a third lens convex toward the object side and having positive refractive power, a fourth lens concave toward the image plane and having negative refractive power, and a fifth lens convex toward the image plane and having negative or positive refractive power, sequentially from an object side.

Abstract: There are provided a subminiature optical system having a miniature size and capable of obtaining a narrow view angle using only five sheets of lenses, and a portable device having the same. The subminiature optical system includes a first lens convex toward the object side and having positive refractive power, a second lens concave toward an image side and having negative refractive power, a third lens convex toward the object side and having positive refractive power, a fourth lens concave toward the image plane and having negative refractive power, and a fifth lens convex toward the image plane and having negative or positive refractive power, sequentially from an object side.

Abstract: A provided lens assembly device includes a lens assembly that has a plurality of adjacently lens modules, each accommodating one or more lenses, and a lens holder where the plurality of lens modules are disposed, where, for each of the plurality of lens modules, a respective lens module includes a side surface facing another lens module, of the plurality of lens modules, disposed adjacent to the respective lens module, where the side surface includes at least a first flat surface, and at least one lens, of the one or more lenses of the respective lens module, having a first total length in a first axial direction, perpendicular to an optical axis of the respective lens module, and a second total length in a second axial direction, perpendicular to both the optical axis and the first axial direction, where the first total length is longer than the second total length.

Abstract: A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially disposed in ascending numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein LfS2el/L1S1el?0.65 and 0.05<T1/TTL<0.1 are satisfied, where LfS2el is a maximum effective radius of an image-side surface of the fifth lens, L1S1el is a maximum effective radius of an object-side surface of the first lens, T1 is a thickness of the first lens along the optical axis, and TTL is a distance along the optical axis from the object-side surface of the first lens to the imaging plane.

Abstract: A camera module includes a first lens barrel including a first support portion supporting a lens accommodated in the first lens barrel on an object side of the first lens barrel, and a second lens barrel including a second support portion supporting a lens accommodated in the second lens barrel on an image side of the second lens barrel, wherein the first lens barrel and the second lens barrel are configured to be coupled to each other by a protrusion and a groove.