Epistar Corporation

Jen-Shui Wang

Min-Hsun Hsieh

Wen-Huang Liu

Tzu-Feng Tseng

Ting-Wei Yeh

Chou-Chih Yin

Chia-Fen Tsai

Chia-Liang Hsu

Yi-Ming Chen

Chien-Yuan Wang

Chun-Chang Chen

Ching-San Tao

Steve Meng-Yuan Hong

An illumination apparatus is disclosed in the invention. The illumination apparatus includes a cavity with a diffusion surface, a light source, a light-spreading device, and at least one optically-conditioning surface with a wave-like array formed thereon. The light-spreading device and the optically-conditioning surface spread the light generated by the light source. The light-spreading device includes a wing-shaped protrusion part, a light incident surface, a recess located away from the light incident surface, and an optically-conditioning surface including a wave-like array, wherein the wave-like array has a wavefront direction.

Illumination apparatus

A semiconductor light-emitting element assembly, comprising a composite substrate, a circuit layout carrier, a connecting structure, a recess, and a semiconductor light-emitting element, is disclosed. The connecting structure is used for bonding the composite substrate with the circuit layout carrier. The recess is formed by the circuit layout carrier and extends toward the composite substrate. The semiconductor light-emitting element is deposited in the recess and electrically connected to the circuit layout carrier.

Semiconductor light-emitting element assembly with a composite substrate

A light emitting device having a circuit protection unit is provided. The circuit protection unit has a low-resistance layer and a potential barrier layer, wherein a barrier potential exists at the interface between the low-resistance layer and the potential barrier layer. The circuit protection unit is electrically connected with the light emitting device. When an electrostatic discharge or excessive forward current is occurred in the light emitting device, the circuit protection unit provides a rectifying function for preventing damages caused by static electricity or excessive forward current to the light emitting device.

Light emitting device having circuit protection unit

An illumination apparatus is disclosed in the invention. The illumination apparatus includes a cavity with a diffusion surface, a light source, a light-spreading device, and at least one optically-conditioning surface with a wavelike array formed thereon. The light-spreading device and the optically-conditioning surface spread the light generated by the light source. The light-spreading device includes a wing-shaped protrusion part, a light incident surface, a recess located away from the light incident surface, and an optically-conditioning surface including a wavelike array, wherein the wavelike array has a wavefront direction.

A tube type light emitting diode light source including a light source generator, a light guide and a diffuser is provided. The light source generator includes LEDs arranging in a line. The light guide has a grooved light incident surface and a grooved light-guiding surface. The grooved light incident surface encompasses the LEDs, and the grooved light-guiding surface is adapted for changing the propagating direction of an incident light. The diffuser covers the light guide.

LED light source

A light-emitting device includes a compound substrate including a high thermal conductive layer and a substrate disposed around the high thermal conductive layer, an adhesive layer formed on the compound substrate, and a light-emitting stack layer formed on the adhesive layer. Therefore, problems in cutting a metal layer in a grain cutting process are solved.

Light-emitting device having a compound substrate

A light emitting diode having an adhesive layer and a reflective layer and a manufacturing method thereof featured by adhering together a light emitting diode stack and a substrate having a reflective metal layer by use of a transparent adhesive layer so that the light rays directed to the reflective metal layer can be reflected therefrom to improve the brightness of the light emitting diode.

Light emitting diode having an adhesive layer and a reflective layer and manufacturing method thereof

Light emitting diode having an adhesive layer and a reflective layer

A method for forming a light emitting diode includes forming a first stack, forming a second reaction layer over the first stack, forming a second stack, forming a first reaction layer over the second stack, and holding together the first reaction layer and the second reaction layer by means of a transparent adhesive layer. The transparent adhesive layer is formed between the first and second reaction layer, therefore the second reaction layer of the first stack will not come off the first reaction layer of the second stack.

Growing community of inventors

Hsin-Chu, Taiwan

Jen-Shui Wang