Hyundai Mobis Co., Ltd.

Samsung Led Co., Ltd.

Samsung Electronics Co., Ltd.

Samsung Electro-mechanics Co., Ltd.

Hyuk Min Lee

Hyoun Soo Shin

Hyun Kyung Kim

Dong Joon Kim

Hyun Yeul Lee

In Heum Park

Yong Chun Kim

Young Geun Jun

Gil Won Han

Myoung Guk Bang

Myung Gug Bang

Chang Wan Kim

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.

Light distribution switching device of head lamp

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.

Head lamp for vehicle

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.

Headlamp for vehicle

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.

Lamp design method for automobile

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.

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 &#x3bc;m; and an n-electrode pad formed on the n-type nitride semiconductor layer.

Nitride-based semiconductor light emitting diode

Nitride-based semiconductor light emitting diode and method of manufacturing the same

A nitride-based semiconductor LED which is flip-chip bonded on a lead pattern of a sub-mount through a bump ball comprises a substrate; a light-emitting structure formed on the substrate; an electrode formed on the light-emitting structure; a protective film formed on the resulting structure having the electrode formed therein, the protective film exposing the electrode surface corresponding to a portion which is connected to the lead pattern of the sub-mount through a bump ball; and a grid-shape buffer film formed on the electrode surface exposed through the protective film.

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Seoul, South Korea

Hyuk Min Lee