Abstract: An optical imaging system includes a fixed-focus lens group and a variable-focus lens group disposed in this order from an object side, wherein the fixed-focus lens group includes a first lens, a second lens, and a third lens disposed in this order from an object side, wherein the first lens has positive refractive power, and wherein the second lens has negative refractive power.

Abstract: A lens module is provided. The lens module may include a lens barrel configured to accommodate a lens; and a support member disposed in the lens barrel, and configured to support the lens, wherein the support member includes a first support member formed of a first material, and a second support member formed of a second material different from the first material, wherein the first support member configured to contact and support the lens, and the second support member is disposed to be spaced apart from the lens, wherein a rigidity of the second support member is greater than a rigidity of the first support member.

Abstract: An optical imaging system including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially arranged from an object side toward an imaging plane, wherein an object-side surface of the sixth lens is convex, and wherein one of the first lens to the sixth lens is a variable focus lens configured to have a variable focal length.

Abstract: An imaging lens system is provided. The imaging lens system includes a first lens having refractive power, a second lens having refractive power, a third lens having refractive power, a fourth lens having refractive power and a concave image side surface, a fifth lens having refractive power and a concave object side surface, a sixth lens having refractive power, a seventh lens having refractive power, and an eighth lens having refractive power. The first to eighth lenses of the imaging system are sequentially arranged from an object side to an imaging side, and, in the imaging lens system, TTL/2ImgHT < 0.6, where TTL is a distance from an object side surface of the first lens to an imaging plane, and 2ImgHT is a diagonal length of the imaging plane.

Abstract: An imaging lens system includes an optical path folding member including a forwardmost reflective surface disposed closest to an object side, a rearmost reflective surface disposed closest to an imaging plane, and a rear reflective surface disposed to form an acute angle with the rearmost reflective surface and configured to reflect light reflected by the rearmost reflective surface to the imaging plane, and a first lens group disposed on an object side of the forwardmost reflective surface or an image side of the forwardmost reflective surface, wherein an angle between a first virtual plane including the forwardmost reflective surface and a second virtual plane including the rearmost reflective surface is 15 to 27 degrees.

Abstract: An imaging lens system includes: a first lens having a convex image-side surface; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; and a sixth lens having positive refractive power. In the imaging lens system, the first to sixth lenses are sequentially disposed from an object side. In the imaging lens system, TTL/f<0.85 is satisfied, where TTL is a distance from an object-side surface of the first lens to an imaging plane, and f is a focal length of the imaging lens system.

Abstract: An image sensor includes a substrate with a first surface opposite a second surface, a pixel isolation pattern defining first and second unit pixels adjacent to each other in the substrate, and first and second separation patterns in the substrate. The first unit pixel includes first and second photoelectric conversion parts along a first direction. The second unit pixel includes third and fourth photoelectric conversion parts along a second direction intersecting the first direction. The first separation pattern extends in the second direction between the first and second photoelectric conversion parts. The second separation pattern extends in the first direction between the third and fourth photoelectric conversion parts. A width of the pixel isolation pattern, a width of the first separation pattern, and a width of the second separation pattern each decrease from the second surface of the substrate toward the first surface of the substrate.

Abstract: A lens assembly includes: a first lens including a protrusion; and a second lens disposed adjacent to the first lens and including a recess configured to accommodate at least a portion of the protrusion. The protrusion is spaced apart from the recess in an optical axis direction.

Abstract: An imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens disposed in order from an object side. In the imaging lens system, TTL/2ImgHT is less than 0.640, where TTL is an axial distance between an object-side surface of the first lens and an imaging plane and 2ImgHT is a diagonal length of the imaging plane.