Abstract: The present invention provides a battery monitoring method, which is performed by a battery monitoring device, including: measuring a first voltage drop across both ends of a first shunt resistor of a bus bar electrically connected to a battery and a second voltage drop across both ends of a second shunt resistor, which is in parallel or serial connection with the first shunt resistor; calculating a first current and a second current flowing, respectively, through the first shunt resistor and the second shunt resistor using a first voltage drop value and a second voltage drop value; and determining a state of the battery using a difference between a first current value and a second current value. According to the present invention, it is possible to increase the reliability of monitoring information related to the battery's state by utilizing current values that have undergone linearity compensation and temperature compensation.

Abstract: A lens module is provided. The lens module includes a first lens, a second lens, and a third lens sequentially disposed from an object side to an imaging side, a first spacing member disposed between the first lens and the second lens and having a first passage extending in a direction that intersects an optical axis, a second spacing member disposed between the second lens and the third lens and having a second passage extending in a direction that intersects the optical axis, and a lens barrel configured to accommodate the first lens, the second lens, the third lens, the first spacing member and the second spacing member, and configured to have a first connection passage disposed on an inner side surface and connected to the first passage and the second passage.

Abstract: An imaging lens system includes a first lens having negative refractive power, a second lens having refractive power, a third lens having refractive power, a fourth lens having positive refractive power, a fifth lens having a concave object-side surface, a sixth lens having a convex object-side surface, a seventh lens having refractive power, and an eighth lens having refractive power, wherein the first to eighth lenses are sequentially disposed at intervals from the object-side surface, wherein the imaging lens system satisfies the following conditional expression: 0.170<ImgHT/TTL<0.182 where ImgHT is a height of an imaging plane and TTL is a distance from an object-side surface of the first lens to the imaging plane.

Abstract: A light distribution switching device of a head lamp may include: a housing installed at the front of a light source of the head lamp; a shield part rotatably installed in the housing, and adjusting movement of light irradiated from the light source depending on a rotational position; a rotating gear mounted on the shield part and rotated with the shield part; a driving part rotating a driving gear engaged with the rotating gear; and an elastic return part installed on the shield part, and moving the shield part to the original position when the driving part is stopped.

Abstract: A light distribution switching device of a head lamp may include: a housing installed at the front of a light source of the head lamp; a shield part rotatably installed in the housing, and adjusting movement of light irradiated from the light source depending on a rotational position; a rotating gear mounted on the shield part and rotated with the shield part; a driving part rotating a driving gear engaged with the rotating gear; and an elastic return part installed on the shield part, and moving the shield part to the original position when the driving part is stopped.

Abstract: A head lamp includes a plate-shaped base supported in a housing. A first light source is disposed on an upper surface of the base. A second light source is disposed on a lower surface of the base. An upper reflector extends from the upper surface of the base and is configured to reflect incident light emitted from the first light source in a forward direction. A lower reflector extends from the lower surface of the base and is configured to reflect light emitted from the second light source in the forward direction. A shield main body extends from an end of the base and is configured to: block a portion of light reflected from the upper reflector and the lower reflector, and form a beam pattern. A shield protrusion protrudes from the shield main body and is configured to block another portion of the light reflected by the lower reflector.

Abstract: A headlamp for a vehicle is provided. The headlamp includes: a reflector which reflects light emitted from a light source; a lens which the light emitted from the light source penetrates; a lens holder which supports the lens; and a shield assembly which is provided between the reflector and the lens holder.

Abstract: The present invention relates to a lamp design method for an automobile. The present invention makes functions of a pitch between light sources and an air gap to be applied to the design in order to improve light uniformity. The present invention may suggest an optimal design method of an FDT surface light source lamp.

Abstract: The present invention relates to a lamp design method for an automobile. The present invention makes functions of a pitch between light sources and an air gap to be applied to the design in order to improve light uniformity. The present invention may suggest an optimal design method of an FDT surface light source lamp.

Abstract: A head lamp includes a plate-shaped base supported in a housing. A first light source is disposed on an upper surface of the base. A second light source is disposed on a lower surface of the base. An upper reflector extends from the upper surface of the base and is configured to reflect incident light emitted from the first light source in a forward direction. A lower reflector extends from the lower surface of the base and is configured to reflect light emitted from the second light source in the forward direction. A shield main body extends from an end of the base and is configured to: block a portion of light reflected from the upper reflector and the lower reflector, and form a beam pattern. A shield protrusion protrudes from the shield main body and is configured to block another portion of the light reflected by the lower reflector.

Abstract: A headlamp for a vehicle, includes: a lower lamp module configured to form a first beam pattern at a front close range region of the vehicle while being fixed; and an upper lamp module including an ADB (adaptive drive beam) lamp module and a low beam lamp module, which are rotatably installed at an upper portion of the lower lamp module, respectively, and configured to form a variable second beam pattern which is combined with the first beam pattern. Therefore, stable driving visibility may be secured at a region close to a driver, various beam patterns may be implemented, light blindness to a driver of an oncoming vehicle may be prevented, and thereby forward recognition of the driver and the opposite driver may be improved.

Abstract: A head lamp for a vehicle is provided. The headlamp includes: a reflector which reflects light emitted from a light source; a lens which the light emitted from the light source penetrates; a lens holder which supports the lens; and a shield assembly which is provided between the reflector and the lens holder.

Abstract: Provided is a head lamp for a vehicle. The headlamp includes: a reflector which reflects light emitted from a light source; a sliding unit which applies rotational force to the reflector; a first frame which accommodates the reflector; and a second frame which accommodates the first frame, in which the first frame is rotatably connected to the second frame.

Abstract: Disclosed is an automotive head lamp, including: a fixed lamp module including a first lamp unit and a second lamp unit; a rotating lamp module including a third lamp unit and a fourth lamp unit; and a control unit configured to control a driving of the fixed lamp module and the rotating lamp module, in which the rotating lamp module is disposed closely to a side of a vehicle than the fixed lamp module.

Abstract: A headlamp for a vehicle, includes: a lower lamp module configured to form a first beam pattern at a front close range region of the vehicle while being fixed; and an upper lamp module including an ADB (adaptive drive beam) lamp module and a low beam lamp module, which are rotatably installed at an upper portion of the lower lamp module, respectively, and configured to form a variable second beam pattern which is combined with the first beam pattern. Therefore, stable driving visibility may be secured at a region close to a driver, various beam patterns may be implemented, light blindness to a driver of an oncoming vehicle may be prevented, and thereby forward recognition of the driver and the opposite driver may be improved.

Abstract: A nitride-based semiconductor LED includes a substrate; an n-type nitride semiconductor layer formed on the substrate; an active layer and a p-type nitride semiconductor layer that are sequentially formed on a predetermined region of the n-type nitride semiconductor layer; a transparent electrode formed on the p-type nitride semiconductor layer; a p-electrode pad formed on the transparent electrode, the p-electrode pad being spaced from the outer edge line of the p-type nitride semiconductor layer by 50 to 200 ?m; and an n-electrode pad formed on the n-type nitride semiconductor layer.

Abstract: Disclosed is a control method of a vehicular lamp, including: judging reliability of a camera; sensing whether there is an oncoming vehicle from an opposite lane by using the camera; moving an optical axis to an opposite side to the vehicle when the vehicle is sensed; and forming an ‘L’-shaped beam pattern.

Abstract: A nitride-based semiconductor LED includes a substrate; an n-type nitride semiconductor layer formed on the substrate; an active layer and a p-type nitride semiconductor layer that are sequentially formed on a predetermined region of the n-type nitride semiconductor layer; a transparent electrode formed on the p-type nitride semiconductor layer; a p-electrode pad formed on the transparent electrode, the p-electrode pad being spaced from the outer edge line of the p-type nitride semiconductor layer by 50 to 200 ?m; and an n-electrode pad formed on the n-type nitride semiconductor layer.

Abstract: A nitride-based semiconductor LED includes a substrate; an n-type nitride semiconductor layer formed on the substrate; an active layer and a p-type nitride semiconductor layer that are sequentially formed on a predetermined region of the n-type nitride semiconductor layer; a transparent electrode formed on the p-type nitride semiconductor layer; a p-electrode pad formed on the transparent electrode, the p-electrode pad being spaced from the outer edge line of the p-type nitride semiconductor layer by 50 to 200 ?m; and an n-electrode pad formed on the n-type nitride semiconductor layer.

Abstract: A nitride-based semiconductor LED includes a substrate; an n-type nitride semiconductor layer formed on the substrate; an active layer and a p-type nitride semiconductor layer that are sequentially formed on a predetermined region of the n-type nitride semiconductor layer; a transparent electrode formed on the p-type nitride semiconductor layer; a p-electrode pad formed on the transparent electrode, the p-electrode pad being spaced from the outer edge line of the p-type nitride semiconductor layer by 50 to 200 ?m; and an n-electrode pad formed on the n-type nitride semiconductor layer.