摘要:
A micro-optic lens is disclosed. The micro-optic lens includes a substrate; and a lens element on the substrate, wherein the lens element includes a flat surface and an annularly grooved surface including first facets and second facets, and wherein the first facets collimate a light effectively and the second facets are parallel to a light. The micro-optic lens can decrease the draft loss and collimate the emitted light beams to increase the light efficiency. Further, the present invention also provides a method for designing angles of micro-optic lenses.
摘要:
A lighting apparatus includes a substrate, a plurality of light-emitting dies, a continuous encapsulation structure, and a gel. The plurality of light-emitting dies are disposed on the substrate and spaced apart from one another. The light-emitting dies each are covered with a respective individual phosphor coating conformally. The continuous encapsulation structure has a curved surface disposed over the substrate and encapsulates the light-emitting dies within. The gel is disposed between the encapsulation structure and the phosphor coating for each of the light-emitting dies. The gel contains diffuser particles. The lighting apparatus has a substantially white appearance in an off state when the plurality of light-emitting dies is turned off.
摘要:
A Light-Emitting Diode (LED) lamp includes a heat sink with a number of passive air flow ducts defined at least partially by fins of the heat sink and a cover plate over the fins. The heat sink includes a body with a cavity, a number of fins radiating outwards from the body, and a cover plate covering the fins. Each passive air flow duct includes top and bottom openings for air flow.
摘要:
The present disclosure relates to light emitting diode (LED) devices and methods for fabricating the same. An LED device includes a housing adapted to combine a heat sink with a vapor chamber to form an enclosed space interposed therebetween. The LED device includes light emitting diode modules attached to the housing adjacent to the vapor chamber. The vapor chamber is adapted to uniformly disperse heat generated from the LED modules within the enclosed space to form a uniform temperature field on the heat sink to thereby provide effective heat dissipation.
摘要:
An optical emitter is fabricated by bonding a Light-Emitting Diode (LED) die to a package wafer, electrically connecting the LED die and the package wafer, forming a phosphor coating over the LED die on the package wafer, molding a lens over the LED die on the package wafer, molding a reflector on the package wafer, and dicing the wafer into at least one optical emitter.
摘要:
An optical microstructure plate and mold for fabricating the same is disclosed. The optical microstructure plate comprises a substrate. An optical microstructure element is formed on the substrate. A period alignment mark is disposed on the substrate to provide alignment for fabricating the optical microstructure element by a mold. A universal alignment mark is disposed on the substrate to provide alignment for bonding another plate therewith. Specifically, the mold comprises a concave within a mold substrate, a spoiler around the concave, and a buffer zone adjacent to the spoiler.
摘要:
An optoelectronic device chip, and a method for making the chip, are disclosed. The chip comprises a device substrate, an optically transparent upper substrate, and a composite spacer layer which includes an adhesive material and a plurality of particles dispersed in said adhesive material. The distance between the device substrate and the upper substrate is controlled by the thickness of the composite spacer layer so that the variation is within the depth of focus of optical system.
摘要:
The present invention relates to an apparatus for making a source material into a crystal fiber having different regions of polarization inversion. The apparatus of the present invention is similar to a laser-heated pedestal growth (LHPG) apparatus, characterized in that a first electric field generating device and a second electric field generating device are included. The first electric field generating device is used for providing a first external electric field which is used for poling the crystal fiber and inducing micro-swing of the crystal fiber. The second electric field generating device is disposed on a predetermined position above the first electric field generating device for providing a second external electric field to control and maintain the amplitude of the micro-swing. Whereby, the growth condition of the crystal fiber can be controlled precisely, and a uniformly and regularly periodic polarization inversion structure is fabricated.
摘要:
A tunable filter with a wide free spectral range is provided, having a first collimator, and a second collimator, and a mirror or Bragg reflector interposed between the first and second collimators. A resonance cavity is defined in the space between the Bragg reflector and the second collimator that is able to modulate the wavelength of a light beam passing through the filter. The variable wavelength tunable filter is able to provide better optical performance and stability and a simplified construction of the resonance cavity as compared with direct fiber couplings and traditional tunable filters.