Abstract: A wafer having ?LEDs is inspected using cathodoluminescence microscopes. A fast scan is enabled by splitting the CL beam into several beams and sensing the beams with point detectors. Optical filters are inserted in the optical path upstream of the detectors, such that each detector senses a different frequency band. The signals are ratioed and the ratios are compared to expected reference. Regions of extreme value are identified and, if desired, a high resolution scan is performed on the regions or a sample of the regions. Viability score is calculated for each identified region.

Abstract: A wafer having ?LEDs is inspected using cathodoluminescence microscopes. A fast scan is enabled by splitting the CL beam into several beams and sensing the beams with point detectors. Optical filters are inserted in the optical path upstream of the detectors, such that each detector senses a different frequency band. The signals are ratioed and the ratios are compared to expected reference. Regions of extreme value are identified and, if desired, a high resolution scan is performed on the regions or a sample of the regions. Viability score is calculated for each identified region.

Abstract: The suspended solids content of a process stream in a process for producing alumina is reduced by contacting the stream with silicon-containing polymers provided by water-in-oil compositions.

Abstract: A flocculant composition that includes a blend of a first water-in-oil emulsion having a silicon-containing polymer in its aqueous phase and a second water-in-oil emulsion having an anionic polymer in its aqueous phase. The silicon-containing polymer and the anionic polymer are present in the composition at a weight ratio between 100:1 and 1:100.

Abstract: A system for manufacturing a 3-D display device is disclosed. The system includes a lenticular image former capable of generating a color lenticular image from a plurality of two dimensional color images, and an electrophotographic printing apparatus configured to receive the color lenticular image from the lenticular image former and to print a CMYK half tone color lenticular image on a surface of a polymeric lenticular lens medium using a powder type toner such that each color when it is printed on the surface of the lenticular lens medium has a printing density of at least 1.0.

Abstract: The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon-containing polymers.

Abstract: The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon-containing polymers.

Abstract: The present invention provides an erythema meter comprising a light guide that carries light of two specific wavelengths (probing and reference) at two distinct frequencies that are generated and modulated by a either a single or multiple source(s), a photodetector mounted in the tip of the guide that receives light reflected from the surface being examined, and circuitry electrically coupled to the guide for processing the light data, and determining the level of erythema present on the examined surface. The probing and reference wavelengths are delivered in sinusoidal or amplitude modulated fashion, thereby permitting electronic filtering of the received data. A calculating circuit determines the quotient of the two wavelengths after having been reflected off of a surface, such as mucosal or dermal surfaces, which is representative of the severity of erythema present in the surface.

Abstract: The present invention provides an erythema meter comprising a light guide that carries light of two specific wavelengths (probing and reference) at two distinct frequencies that are generated and modulated by a either a single or multiple source(s), a photodetector mounted in the tip of the guide that receives light reflected from the surface being examined, and circuitry electrically coupled to the guide for processing the light data, and determining the level of erythema present on the examined surface. The probing and reference wavelengths are delivered in sinusoidal or amplitude modulated fashion, thereby permitting electronic filtering of the received data.