Abstract: This invention discloses an optical device for a semiconductor based lamp, the optical device comprising a base for mounting a semiconductor based light-emitting device, and a light-redirecting member having an opening and a reflective surface next to the opening, wherein the opening is aligned directly above the semiconductor based light-emitting device, and the reflective surface redirects light emitted from the semiconductor-based light-emitting device to lateral directions.

Abstract: An optical device for a semiconductor based lamp includes a base and a semiconductor based light-emitting device mounted on the base. A transparent body encapsulates the semiconductor based light-emitting device. A reflective surface is in contact with the transparent body and covers a predetermined region on a top of the transparent body. The reflective surface has an opening. At least a portion of the transparent body protrudes through the opening in the reflective surface. Light emitted from the semiconductor based light-emitting device transmits upwardly through the opening in the reflective surface.

Abstract: This invention discloses an optical device for a semiconductor based lamp, the optical device comprising a base for mounting a semiconductor based light-emitting device, and a light-redirecting member having an opening and a reflective surface next to the opening, wherein the opening is aligned directly above the semiconductor based light-emitting device, and the reflective surface redirects light emitted from the semiconductor-based light-emitting device to lateral directions.

Abstract: A gas-exhausting module for a multichamber thin-film deposition apparatus, which has one or more reactor chambers, includes a collecting chamber and a plurality of gas pipes. The collecting chamber includes an upper portion and a lower portion. The cross-sectional area of the lower portion is less than the cross-sectional area of the upper portion. One end of each gas pipe communicates with one of the reactor chambers. The other end of each gas pipe communicates with the upper portion in a tangential direction. During operation, a cyclonic airflow is provided within the collecting chamber to uniformly extract the exhaust gas from each reactor chamber.

Abstract: A light-emitting-diode (LED) array includes a first LED device having a first electrode and a second LED device having a second electrode. The first and the second LED device are formed on a common substrate and are separated by a gap. At least one polymer material substantially fills the gap. An interconnect, formed on top of the at least one polymer material, electrically connects the first electrode and the second electrode.

Abstract: A method for forming a light-emitting-diode (LED) array is disclosed includes forming an LED structure on a substrate. The LED structure is divided into at least a first LED device and a second LED device with a gap between the first LED device and the second LED device. At least one polymer material is deposited over the LED structure to substantially fill the gap with the at least one polymer material. Portions of the at least one polymer material are removed to expose a first electrode of the first LED device and a second electrode of the second LED device. An interconnect is formed on top of the at least one polymer material electrically connecting the first and second electrode.

Abstract: This invention discloses an optical device for a semiconductor based lamp, the optical device comprising a base for mounting a semiconductor based light-emitting device thereon, a transparent body encapsulating the semiconductor based light-emitting device, and a reflective surface covering a predetermined region on a top of the transparent body, the reflective surface having an opening exposing the transparent body, wherein light emitted from the semiconductor based light-emitting device transmits through the opening of the reflective surface.

Abstract: This invention discloses an optical device for a semiconductor based lamp, the optical device comprising a base for mounting a semiconductor based light-emitting device, and a light-redirecting member having an opening and a reflective surface next to the opening, wherein the opening is aligned directly above the semiconductor based light-emitting device, and the reflective surface redirects light emitted from the semiconductor-based light-emitting device to lateral directions.