Intematix Corporation

Intermatix Corporation

Jonathan Melman

Gang Wang

Charles O Edwards

Xianglong Yuan

Bing Dai

Haitao Yang

Xiao-dong Xiang

Yi-Qun Li

Gerald Francis Dionne

Geng Chen

A photoluminescent composition ('phosphor ink') comprises a suspension of particles of at least one blue light (380 nm to 480 nm) excitable phosphor material in a light transmissive liquid binder in which the weight loading of at least one phosphor material to binder material is in a range 40% to 75%. The binder can be U.V. curable, thermally curable, solvent based or a combination thereof and comprise a polymer resin; a monomer resin, an acrylic, a silicone or a fluorinated polymer. The composition can further comprise particles of a light reflective material suspended in the liquid binder. Photoluminescence wavelength conversion components; solid-state light emitting devices; light emitting signage surfaces and light emitting signage utilizing the composition are disclosed.

Solid-state light emitting devices and signage with photoluminescence wavelength conversion and photoluminescent compositions therefor

A solid-state light emitting device comprises a light transmissive thermally conductive circuit board; an array of solid-state light emitters (LEDs) mounted on, and electrically connected to, at least one face of the circuit board; and a photoluminescence wavelength conversion component. The wavelength conversion component comprises a mixture of particles of at least one photoluminescence material (phosphor) and particles of a light reflective material. The emission product of the device comprises the combined light generated by the LEDs and the photoluminescence material. The wavelength conversion component can comprise a layer of the phosphor material and particles of a light reflective material applied directly to the array of LEDs in the form of an encapsulant. Alternatively the photoluminescence component is a separate component and remote to the array of LEDs such as tubular component that surrounds the LEDs.

Solid-state light emitting devices with photoluminescence wavelength conversion

A solid-state light emitting device having a solid-state light emitter (LED) operable to generate excitation light and a wavelength conversion component including a mixture of particles of a photoluminescence material and particles of a light reflective material. In operation the phosphor absorbs at least a portion of the excitation light and emits light of a different color. The emission product of the device comprises the combined light generated by the LED and the phosphor. The wavelength conversion component can be light transmissive and comprise a light transmissive substrate on which the mixture of phosphor and reflective materials is provided as a layer or homogeneously distributed throughout the volume of the substrate. Alternatively the wavelength conversion component can be light reflective with the mixture of phosphor and light reflective materials being provided as a layer on the light reflective surface.

Solid-state light emitting devices and signage with photoluminescence wavelength conversion

A method of manufacturing a light emitting device: an LED wafer having an array of LEDs formed on a surface thereof, the method comprises: a) fabricating a sheet of phosphor/polymer material comprising a light transmissive polymer material having at least one phosphor material distributed throughout its volume and in which the polymer material is transmissive to light generated by the LEDs and to light generated by the at least one phosphor material; b) selectively making apertures through the phosphor/polymer sheet at positions corresponding to electrode contact pads of the LEDs of the LED wafer; c) attaching the sheet of phosphor/polymer material to the surface of the LED wafer such that each aperture overlies a respective electrode contact pad; and d) dividing the wafer into individual light emitting devices. The method can further comprise, prior to dividing the LED wafer, cutting slots through the phosphor/polymer material that are configured to pass between individual LEDs.

Manufacture of light emitting devices with phosphor wavelength conversion

A method of manufacturing a light emitting device comprises: a) depositing over substantially the entire surface of a LED diode wafer having an array of LEDs formed on a surface thereof a mixture of at least one phosphor material and a polymer material, wherein the polymer material is transmissive to light generated by the LEDs and to light generated by the at least one phosphor material; b) mechanically stamping the phosphor/polymer mixture with a stamp having features configured such as to form passages in the phosphor/polymer corresponding to electrode contact pads of each LED thereby enabling access to each electrode contact pad; c) curing the polymer; d) removing the stamp; and e) dividing the LED wafer into individual light emitting devices. The stamp comprises a dissolvable material (polyvinyl alcohol) and the stamp is removed by dissolving it using a solvent (e.g. water).

A method of manufacturing a light emitting device comprises: depositing over substantially the entire surface of a LED wafer having a array of LEDs formed on a surface thereof a mixture of at least one phosphor and a polymer material, wherein the polymer material is transmissive to light generated by the LEDs and to light generated by the at least one phosphor material; using laser ablation to selectively make apertures in the phosphor/polymer material corresponding to electrode contact pads of each LED thereby enabling access to each electrode contact pad; and dividing the wafer into individual light emitting devices. The method can further comprise, prior to dividing the wafer, cutting slots in the phosphor/polymer material which are configured to pass between individual LEDs. The slots are configured such that a layer of phosphor/polymer material remains on the edges of each LED after division of the wafer into individual light emitting devices.

Embodiments of the present invention are generally related to apparatus and methodology of thermal applicators in cancer therapy. In particular, the present embodiments are directed to a technique called 'nanoparticle ferromagnetic resonance heating,' where ferromagnetic resonance heating in addition to an RF hyperthermia treatment is used to cause cell apoptosis and necrosis. An apparatus for carrying out a ferromagnetic resonance heating treatment of a tumor, comprises a volume concentration of super paramagnetic particles contained within the interior of the tumor, the concentration ranging from about 0.1 to about 1 percent; a magnetic field source configured to deliver a gradient DC magnetic field to the region of the tumor; and an energy source configured to deliver to the tumor an RF field at a frequency ranging from about 100 to 200 MHz. The apparatus of claim, wherein the super paramagnetic particles are selected from the group consisting of maghemite (&#x3b3;-FeO) based compounds, and yttrium iron garnet (YFeO) based compounds.

Remotely RF powered conformable thermal applicators

High throughput screening of catalyst libraries may be performed using spin resonance techniques, and an evanescent wave probe developed by the present inventors. The probe may operate using either nuclear magnetic resonance or electron spin resonance techniques. In one configuration, a scanning evanescent wave spin resonance probe is used in conjunction with a library of catalysts or other materials, and localized detection of spin resonance is carried out at each library address. In another configuration, the evanescent wave probe is used in a micro-reactor array assay.

Growing community of inventors

San Ramon, CA, United States of America

Jonathan Melman