Integrated Optics Communications Corporation

Achrolux Inc.

Advanced Materials Engineering Research Inc.

Other

Advanced Ion Beam Technology, Inc.

Advanced Materials Engineering

Archolux, Inc.

International Optics Communications Corporation

Oplux, Inc.

Advanced Optical Solutions, Inc.

Amer-soi

Peiching Ling

Ming Xu

Jinliang Chen

Jianjun Zhang

Wayne Lui

Tien Tien

Jiong Chen

DeZhong Liu

Yu Chen

Jiangjun Zhang

Zhimin Wan

Jianmin Qiao

Vivek B Dutta

Dezhong Liu

A charged powder supply device is disclosed. A plurality of charged powder particles are disposed on an upper side of a carrier and at least an action source is positioned at a lower side of the carrier for acting on the carrier so as to vibrate the charged powder particles on the upper side of the carrier. As such, the vibrated charged powder particles are attached to objects to be coated, such as LEDs, under the effect of an electric field so as to form a powder layer, such as a phosphor layer. Since there are no other external forces that affect the moving direction of the charged powder particles, the powder layer can be uniformly formed on the objects.

Charged powder supply device

A light-emitting package structure is provided, including an encapsulant, an light-emitting component embedded the encapsulant and having a light-emitting side and a non-emitting side opposing the light-emitting side, a dam embedded and exposed from the encapsulant, and a phosphor layer covering the light-emitting side and the dam. The non-emitting side has a plurality of electrodes. Since the heat generated by the phosphor layer can be transmitted to an outside region of the light-emitting package structure through the dam, the etiolation of the encapsulant can thus be prevented. A method of fabricating the light-emitting package structure is also provided.

Light-emitting package structure and method of fabricating the same

A light-emitting structure and a method of fabricating the light-emitting structure. The method includes covering an LED die provided on a carrier with a uniform phosphor layer, with an accommodation space constituted by the carrier and the uniform phosphor layer; and forming in the accommodation space a first light-pervious body such that the uniform phosphor layer in various shapes is formed on the LED die. The light-emitting structure thus fabricated has excellent optical property.

Light-emitting structure and a method for fabricating the same

A method of transferring a uniform phosphor layer on an article and a light-emitting structure having a uniform phosphor layer. The method includes disposing a surface of the article in a proximity of a carrier having the uniform phosphor layer on a surface thereon, and causing the uniform phosphor layer to be secured to the surface of the article. Therefore, the uniform phosphor layer is secured to the articles according to a contour of the article.

Method for transferring a uniform phosphor layer on an article and light-emitting structure fabricated by the method

A light emitting diode package and a method of fabricating the same. The package includes a light emitting diode chip having a first surface and a second surface opposing the first surface, a metal frame (or TAB tape) having leads connected to the light emitting diode chip, and a light-pervious encapsulant encapsulating the light emitting diode chip, wherein the second surface of the chip is exposed from the first light-pervious encapsulant. The metal frame (or TAB tape) connects the light emitting diode chip to an external circuit board. The LED package does not need wire-bonding process. A method of fabricating a light emitting diode package is also provided.

Light emitting diode package and method of fabricating the same

A method for forming a light emitting device includes providing a light emitting diode (LED) configured to emit light of a first color and providing a plurality of semi-spherical lenses made of a silicone material that contains no phosphor material. Each of the lenses has a layer of phosphor material attached thereto. The method also includes testing the plurality of lenses to select a subset of lenses that converts light of the first color to light of a second color. The method further includes forming the light emitting device using the LED, one of the selected subset of lenses, and a heat conductive substrate. In an embodiment, after the testing of the plurality of lenses, one of the selected subset of lenses is disposed overlying the LED. In another embodiment, the testing of the plurality of lenses is conducted with a light source other than the LED.

Methods for packaging light emitting devices and related microelectronic devices

A method for forming wavelength-conversion LED encapsulant structure includes forming an LED encapsulant structure body, forming a layer of a wavelength-conversion material on a first surface, disposing the first surface to cause the wavelength-conversion material to be in contact with a surface region of the LED encapsulant structure body, applying a pressure between the first surface and the surface region of the LED encapsulant structure body, and causing at least a portion of the wavelength-conversion material to be at least partially embedded in the surface region of the LED encapsulant structure body.

Methods and apparatus for forming uniform layers of phosphor material on an LED encapsulation structure

A method for forming a layer of an LED phosphor material includes disposing a first surface in a proximity of a powder that includes an LED phosphor material, forming electrostatic charges on the first surface, and forming a layer of the LED phosphor material on the first surface at least partially by using the electrostatic charges. In an embodiment, the method includes disposing the first surface in an interior of a chamber and forming an airborne distribution of the powder in the interior of the chamber in a vicinity of the first surface. In another embodiment, the method includes providing a reservoir of the powder and applying to said phosphor powder an electrostatic charge opposite to that of said electrostatic charge on the first surface.

Methods for forming uniform particle layers of phosphor material on a surface

A method for forming a layer of phosphor material on an LED encapsulant structure includes forming a layer of a phosphor material on a first surface, disposing the first surface to cause the phosphor material to be in contact with a surface of the LED encapsulant structure, applying a pressure between the first surface and the surface of the LED encapsulant structure, and causing the layer of the phosphor material to be attached to the LED encapsulant structure.

The present invention is a wavelength-selective optical transmission system that includes a first waveguide for transmitting a multiplexed optical signal therethrough. The system further includes a second waveguide coupled to the first waveguide wherein a least one of the first and second waveguides have a set of wavelength-selective Bragg gratings disposed near a coupling section between the first and second waveguides to reflect a reflecting optical signal back to the first waveguide and for transmitting a contra-directional optical signal and a co-directional optical signal having respectively a contra-directional selected wavelength and a co-directional selected wavelength corresponding to the Bragg gratings. One of the contra-directional and co-directional wavelengths is chosen as a designated wavelength, and the reflecting optical signal and one of the contra-directional or co-directional optical signals are outside of a predefined range surrounding the designated wavelength.

Grating-based wavelength selective switch

The present invention discloses a switching matrix configuration to reduce the optical propagation losses and coupling losses. The switching matrix comprises M horizontal waveguides interested with 2N vertical waveguides, where M and N are positive integers and the optical switching system is configured to receive a multiplexed input optical signal from a horizontal waveguide disposed next to an i-th horizontal waveguide where i is a closest integer to a positive real number M/2.

Switching matrix configuration for reducing loss

A wavelength selective switch. The switch comprises an input waveguide for carrying an optical signal having a wavelength &#x3bb;. Also included is an output waveguide having a Bragg grating adapted for coupling the wavelength &#x3bb;into the output waveguide in a coupling zone. Finally, provided is a heater element that can selectively provide thermal energy to the coupling zone such that the Bragg grating does not couple the wavelength &#x3bb;.

Waveguide grating-based wavelength selective switch actuated by thermal mechanism

The present invention discloses an optical switching element that uses reversible electroplating mirrors includes a trench with transparent sidewalls located at the intersection of two waveguides A and B. The trench has two electrodes; one, which is transparent, is placed on the trench sidewall and the other is placed on the trench floor. The trench is filled with an index-matching electrolytic solution containing ions of a metal that can electro-deposit on these two electrodes. To actuate the switching element, a negative electrical potential is applied to the sidewall electrode. Actuation causes metal deposits to form on the sidewall electrode, creating a mirror that reflects light from waveguide A to waveguide B. To deactivate the switching element, a positive electrical potential is applied to the sidewall electrode. Deactivation causes metal deposits move off the sidewall and form on the trench floor. The lack of metal deposits on the sidewall allows light to pass through the switching element and continue along the original waveguide A

Optical switch with reversible electroplating mirrors

The present invention discloses methods and apparatus for constructing optical switch systems, in which any input optical signals can be routed to any output ports. The methods and apparatus provide advantages of configuration flexibility, modular construction, constant signal loss, and minimal numbers of switch units required. The switch systems comprise M&#xd7;N switch modules. The switch module in turn comprises a two-dimensional waveguide array and a number of waveguide grating-based wavelength selective switches. With the capability of wavelength-selective routing provided by the switch modules, the optical switch systems requires a relatively small amount of switch units to extend into a very-large-scale switch system.

Optical switch systems using waveguide grating-based wavelength selective switch modules

The present invention discloses a drop-before-add optical routing and switching system. The drop-before-add optical routing and switching system includes an input waveguide for carrying a multiplexed optical signal comprising optical signals transmitted over a plurality of wavelength channels represented by &#x3bb;, &#x3bb;, &#x3bb;, . . . , &#x3bb;and &#x3bb;, where N is a positive integer wherein the input waveguide extending over a first direction. The drop-before-add optical routing and switching system further includes a plurality of second direction waveguides extending over a second direction and intersecting at N intersections with the input waveguide. The drop-before-add optical routing and switching system further includes a plurality of wavelength selective grating switches each disposed on one of the N intersections for selectively transmitting an optical signal of a selected wavelength into an associated one of the second direction waveguide.

Growing community of inventors

San Jose, CA, United States of America

Peiching Ling