Abstract: A zoom optical system according to an embodiment of the present invention includes a first lens group, a second lens group, a third lens group, and a fourth lens group which are sequentially disposed in a direction from an object side to an image side, wherein the second lens group and the third lens group are movable, a total track length (TTL) is less than 20 mm, and an effective focal length (EFL) in a telephoto is greater than 25 mm.

Abstract: The zoom optical system includes a first lens group, a second lens group, and a third lens group which are serially arranged from the object-side towards the image-side. The first lens group includes a plurality of fixed lenses. The second lens group includes two movable lenses. The third lens group includes two movable lenses. Magnification is adjusted according to the movement of the second lens group. Focus is adjusted according to the movement of the third lens group. The focal length at maximum magnification is at least 13 mm. The f-number at maximum magnification is at most 3.7.

Abstract: The zoom optical system according to one embodiment of the present invention comprises a first lens group, a second lens group, and a third lens group which are serially arranged from the object-side towards the image-side, wherein the first lens group comprises a plurality of fixed lenses, the second lens group comprises two movable lenses, the third lens group comprises two movable lenses, magnification is adjusted according to the movement of the second lens group, focus is adjusted according to the movement of the third lens group, the focal length at maximum magnification is at least 13 mm, and the f-number at maximum magnification is at most 3.7.

Abstract: A zoom optical system according to an embodiment of the present invention comprises a first lens group, a second lens group and a third lens group sequentially aligned from an object toward an image, wherein the second lens group and third lens group can move, and an effective focal length (EFL) at a wide angle is defined by the mathematical formula below. 2 . 9 < E ? F ? L wide H imageD < 3 . 5 Here, EFLwide means an effective focal length of the zoom optical system at a wide angle, and HimageD means a half of the diagonal length of an image sensor pixel area.

Abstract: A zoom optical system according to an embodiment of the present invention includes a first lens group, a second lens group, a third lens group, and a fourth lens group which are sequentially disposed in a direction from an object side to an image side, wherein the second lens group and the third lens group are movable, a total track length (TTL) is less than 20 mm, and an effective focal length (EFL) in a telephoto is greater than 25 mm.

Abstract: The zoom optical system according to one embodiment of the present invention comprises a first lens group, a second lens group, and a third lens group which are serially arranged from the object-side towards the image-side, wherein the first lens group comprises a plurality of fixed lenses, the second lens group comprises two movable lenses, the third lens group comprises two movable lenses, magnification is adjusted according to the movement of the second lens group, focus is adjusted according to the movement of the third lens group, the focal length at maximum magnification is at least 13 mm, and the f-number at maximum magnification is at most 3.7.

Abstract: A lighting device for a vehicle may include: a lamp part configured to irradiate light; an inducing lens part configured to guide the light irradiated from the lamp part, and having a cut surface formed thereon; an adjusting lens part formed at the front of the inducing lens part, and configured to adjust the direction of the light moved through the inducing lens part; and a light scattering part formed on the cut surface so as to prevent glare caused by light incident on the cut surface.

Abstract: Provided is a multi-faceted lens. The multi-faceted lens includes a light-receiver disposed in front of a light source, a total internal reflector disposed outside the light-receiver and equipped with a total internal reflection lens for collecting the light irradiated by the light source, and a light-transmitter disposed in front of the light-receiver to irradiate the light, supplied from the light-receiver and the total internal reflector, onto the outside. Light irradiated by the light source passes through the light-receiver.

Abstract: A headlamp including a matrix static bending lights (SBL) optical system, which enables light to be turned on/off. The headlamp includes a headlamp body installed in a front region of a vehicle and including a main optical system for irradiating light, corresponding to one of a low beam headlight, a high beam headlight, and a glare free high beam (GFHB) headlight, onto the front of the vehicle, a reflective structure disposed on one side surface of the inside of a housing of the headlamp body with respect to a direction intersecting an installation reference direction of the main optical system and including a plurality of reflective surfaces, and a light source unit disposed apart from the reflective structure and including a plurality of light source chips that target at a reflective surface of the reflective structure and irradiate light onto the targeted reflective surface.

Abstract: Provided is a multi-faceted lens. The multi-faceted lens includes a light-receiver disposed in front of a light source, a total internal reflector disposed outside the light-receiver and equipped with a total internal reflection lens for collecting the light irradiated by the light source, and a light-transmitter disposed in front of the light-receiver to irradiate the light, supplied from the light-receiver and the total internal reflector, onto the outside. Light irradiated by the light source passes through the light-receiver.

Abstract: A lighting device for a vehicle may include: a lamp part configured to irradiate light; an inducing lens part configured to guide the light irradiated from the lamp part, and having a cut surface formed thereon; an adjusting lens part formed at the front of the inducing lens part, and configured to adjust the direction of the light moved through the inducing lens part; and a light scattering part formed on the cut surface so as to prevent glare caused by light incident on the cut surface.

Abstract: A headlamp including a matrix static bending lights (SBL) optical system, which enables light to be turned on/off. The headlamp includes a headlamp body installed in a front region of a vehicle and including a main optical system for irradiating light, corresponding to one of a low beam headlight, a high beam headlight, and a glare free high beam (GFHB) headlight, onto the front of the vehicle, a reflective structure disposed on one side surface of the inside of a housing of the headlamp body with respect to a direction intersecting an installation reference direction of the main optical system and including a plurality of reflective surfaces, and a light source unit disposed apart from the reflective structure and including a plurality of light source chips that target at a reflective surface of the reflective structure and irradiate light onto the targeted reflective surface.

Abstract: The present invention relates to a multi-facet lens having a continuous non-spherical curved portion, and more particularly, when a thickness direction of the lens is defined as a vertical direction, to a multi-facet lens having a continuous non-spherical curved portion which allows luminous efficiency to be improved through a continuous non-spherical curved portion which has no dummy surface and no step in a direction perpendicular to a light input portion of a vertical lens.

Abstract: Disclosed is a lens for a light emitting diode (LED) of a vehicle. The lens includes an incident surface, into which light of the LED is incident; an emission surface, from which the light of the LED incident through the incident surface is emitted; and a plurality of lateral surfaces which is positioned between the incident surface and the emission surface. Either of the incident surface and the emission surface can includes a Y-axis light blurring region at one side of the incident surface and the emission surface. The Y-axis light blurring region blurs the light from LED in a Y-axis that is perpendicular to the optical axis of the lens.

Abstract: A zoom lens system including: a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group and a fourth lens group having positive refractive power, wherein an interval between the first and second lens groups, an interval between the second and third lens groups, and an interval between the third and fourth lens groups change during zooming from a wide-mode to a tele-mode, wherein the first lens group comprises one negative lens and three positive lenses sequentially from the object to the image, wherein the zoom lens system satisfies an condition below: 0.8<f13/f14<1, and wherein f13 denotes a focal length of a positive lens of the first lens group disposed second from the image to the object, and f14 denotes a focal distance of a positive lens of the first lens group disposed closest to the image.

Abstract: A zoom lens system including: a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group and a fourth lens group having positive refractive power, wherein an interval between the first and second lens groups, an interval between the second and third lens groups, and an interval between the third and fourth lens groups change during zooming from a wide-mode to a tele-mode, wherein the first lens group comprises one negative lens and three positive lenses sequentially from the object to the image, wherein the zoom lens system satisfies an condition below: 0.8<f13/f14<1, and wherein f13 denotes a focal length of a positive lens of the first lens group disposed second from the image to the object, and f14 denotes a focal distance of a positive lens of the first lens group disposed closest to the image.

Abstract: A zoom lens system including, in an order from an object to an image: a first lens group including at least one lens, and a refraction member for bending an optical axis, and having positive refractive power; a second lens group having negative refractive power; a third lens group; and a fourth lens group, wherein zooming is performed by changing at least one interval between the first through fourth lens groups.

Abstract: A zoom lens system including, in an order from an object to an image: a first lens group including at least one lens, and a refraction member for bending an optical axis, and having positive refractive power; a second lens group having negative refractive power; a third lens group; and a fourth lens group, wherein zooming is performed by changing at least one interval between the first through fourth lens groups.

Abstract: A monitoring camera including: a rotational base which is configured to rotate about a rotational axis, with respect to a fixed base; a camera barrel which is coupled to the rotational base and changes an optical path of light input from an outside into a longitudinal direction of the camera barrel which is substantially parallel with a surface of the rotational base which is substantially perpendicular to the rotational axis, and the camera barrel tilts about an axis of the longitudinal direction of the camera barrel; and a housing which includes a window, formed on a surface of the housing, through which the light is input to the camera barrel, and encloses the camera barrel and the rotational base.