Young Lighting Technology Corporation

Udo Custodis

Wei-Chih Wang

Wen-Chiao Chang

Jung-Min Hwang

Shih-Yuan Yu

Sheng-Hung Lin

Wei-Chun Yang

Yao-Cheng Lue

Chi-Ming Tseng

Fang-Ru Ye

Chen-Wei Chu

Ko-Wei Lee

Ai-Lan Hor

Yu- Shih-Yuan

An LED lamp including a first light source device and a second light source device is provided. The first light source device has a light exiting surface and a connection portion, and is used for emitting a first illumination light through the light exiting surface. The light exiting surface surrounds the connection portion. The second light source device is connected to the connection portion, and is used for emitting a second illumination light.

Light emitting diode lamp

An illumination apparatus includes a light guide plate having a plurality of first and second diffusion net points formed on a surface of a light transmissive substrate, and at least one light emitting element disposed to emit light into a light incident surface of the light guide plate. A portion of the first diffusion net points at least partially overlaps the second diffusion net points, and the size of the first diffusion net points is smaller than the size of the second diffusion net points.

Light guide plate with overlapping diffusion net points, and illumination apparatus using such plate

A light guide plate (LGP) includes a first surface, a second surface, and a plurality of light incident surfaces. The first surface is a light-emitting surface. The light incident surfaces connect the first surface and the second surface. The second surface has a plurality of ring-shaped grooves. Depths of the ring-shaped grooves are gradually decreased from a place close to a center of the LGP towards places close to the light incident surfaces. Each of the ring-shaped grooves has a first ring-shaped side wall surface and a second ring-shaped side wall surface. The second ring-shaped side wall surface is opposite to the first ring-shaped side wall surface and located between a geometry center of the ring-shaped groove and the first ring-shaped side wall surface. The first ring-shaped side wall surface is a tilted surface. In addition, a light source apparatus is also provided.

Light guide plate and light source apparatus

A lighting device includes a light guide body and at least one light-emitting unit. The light guide body has a light guide channel and a local roughened surface on the light guide channel as a scattering region. The at least one light-emitting unit is capable of emitting a light into the light guide channel, wherein at least one portion of the light is guided to the scattering region, and the scattering region scatters the light as a local light source region.

Lighting device

An illuminating apparatus includes a plurality of light source units and a light guide plate. The light guide plate has a flat part and a protruding part, wherein the light source units provide a side light beam into the light guide plate at an edge surface, the side light beam is guided in the light guide plate and exits at the protruding part.

Illuminating apparatus

A light source of LED includes at least one first LED and at least one second LED. The first LED has a first optical illuminant characteristic varying with a variable operation voltage from a first level to a second level, wherein the first level is larger than the second level. The second LED has a second optical illuminant characteristic varying with the variable operation voltage from a third level to a fourth level, wherein the third level is smaller than the fourth level. The first LED and the second LED are simultaneously controlled by the same variable operation voltage to produce a light.

Light source of LED and method for producing light source with varying color while dimming

An illuminating device includes a tubular light guide, a plurality of light-emitting devices, and a base. The tubular light guide has a light input edge and an inner space. The light-emitting devices are distributed at the light input edge to provide lights into the tubular light guide. The base supports the light-emitting devices and the tubular light guide. The base also has an electronic circuit to provide power to the light-emitting devices. The base has at least one air circulation hole for connecting an outer space with the inner space.

Illuminating device

Lamp

A light module includes a light guide plate, a light bar, and a first reflector. The light guide plate has a first edge surface, a second edge surface, and a top surface serving as a light-outgoing surface. The light bar is disposed on the first edge surface for providing an edge light source into the light guide plate. The light bar has a plurality of light-emitting devices. The first reflector is disposed on the second edge surface to reflect light back to a region above the light bar.

Growing community of inventors

Hsin-Chu, Taiwan

Udo Custodis