Abstract: Techniques for fabricating and using arrays of violet-emitting LEDs coated with densely-packed-luminescent-material layers together with apparatus and method embodiments thereto are disclosed.

Abstract: Methods and systems for facilitating analysis of travel routes are provided. The method comprising: obtaining addendum data associated with electronic transactions conducted in relation to travel segments, the addendum data comprising a traveller identity, a time, a date, an originating location and a destination location of each of the travel segments; identifying, using an analysis module, travel segments having a time and/or date within a pre-determined period for each traveller identity based on the addendum data; determining, using the analysis module, at least one transit location for each of the traveller identities based on the identified travel segments, wherein the transit location is defined as a location that is both an originating location of one of the identified travel segments and a destination location of another of the identified travel segments; and determining, using the analysis module, a number of traveller identities associated with each transit location.

Abstract: A method for optimizing an item descriptor and item value combination is provided. The method includes receiving initial data, locating one or more previous transaction data points, and creating a plurality of candidate opportunity variants and, for each candidate opportunity variant determining a first deviation, identifying a first set of first previous transaction data points and a second set of previous transaction data point, and forecasting one or more new transaction data points at at least one future date, each new transaction data point includes a forecast merchant identifier. The method further includes selecting the candidate opportunity variant that provides an optimized item descriptor and item value combination based on the selected candidate opportunity variant.

Abstract: A computer-implemented method for computing a price-sensitivity score for a product for sale is provided. The method comprises (a) receiving, by a transaction analysis component, transaction data comprising a purchase of the target product by a consumer; (b) receiving, by a product analysis component, a reference price-sensitivity score for a reference product for sale; (c) calculating, by the transaction analysis component, a correlation index using the transaction data; said correlation index being indicative a correlation between purchases of the target product and the reference product; and (d) calculating, by the product analysis component, the price-sensitivity score for the target product using the correlation index and the reference price-sensitivity score. Methods for computing a price-sensitivity rating of a consumer and a price-efficiency rating for a merchant are also provided. An apparatus for carrying out the method is also provided.

Abstract: A computer-implemented method is described for identifying products purchased by individual customers at different merchants. The method comprises: receiving product purchase information from two or more merchants in a pre-defined merchant group; receiving transaction data for a plurality of customers in a pre-defined customer group; comparing details of the product purchase information with details of the transaction data to identify the product purchases associated with individual transactions and storing the association in a database; and extracting information from the database for an individual customer or for each customer in the pre-defined customer group to determine the products the customer(s) purchased from each merchant.

Abstract: An optical material comprising quantum confined semiconductor nanoparticles having an improved solid state photoluminescent efficiency is disclosed. Also disclosed is an optical component including an optical material comprising quantum confined semiconductor nanoparticles having an improved solid state photoluminescent efficiency. Further disclosed are methods for treating an optical material comprising quantum confined semiconductor nanoparticles. Further disclosed are methods for treating an optical component including an optical material comprising quantum confined semiconductor nanoparticles. One method comprises exposing the optical material to a light flux and heat for a period of time sufficient to increase the solid state photoluminescent quantum efficiency of the optical material by at least 10% of its pre-exposure solid state photoluminescent quantum efficiency value.

Abstract: A method for estimating potential demand at a prospective merchant location for a merchant of a prospective merchant industry is provided. The method includes receiving transaction data and determining from the transaction data a first set of transactions, which include transactions carried out by consumers with consumer origin locations within an area that includes the prospective merchant location.

Abstract: An optical component is disclosed that comprises a first substrate, an optical material comprising quantum confined semiconductor nanoparticles disposed over a predetermined region of a first surface of the first substrate, a layer comprising an adhesive material disposed over the optical material and any portion of the first surface of the first substrate not covered by the optical material, and a second substrate disposed over the layer comprising an adhesive material, wherein the first and second substrates are sealed together. In certain embodiments, the optical component further includes a second optical material comprising quantum confined semiconductor nanoparticles disposed between the layer comprising the adhesive material and the second substrate. Method are also disclosed. Also disclosed are products including the optical component.

Abstract: An optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein the optical material has a solid state photoluminescent efficiency greater than or equal to 60%. Devices including optical materials and/or optical components and methods are also disclosed.

Abstract: A white-light emitting lighting device comprising one or more light emitting light sources (preferably solid state semiconductor light emitting diodes) that emit off-white light during operation, wherein the off-white light includes a spectral output including at least one spectral component in a first spectral region from about 360 nm to about 475 nm, at least one spectral component in a second spectral region from about 475 nm to about 575 nm, and at least one deficiency in at least one other spectral region, and an optical component that is positioned to receive at least a portion of the off-white light generated by the one or more light sources, the optical component comprising an optical material for converting at least a portion of the off-white light to one or more predetermined wavelengths, at least one of which has a wavelength in at least one deficient spectral region, such that light emitted by the lighting device comprises white light, wherein the optical material comprises quantum confined semico

Abstract: Techniques for emulating dimming curves using temperature-sensitive wavelength-converting materials together with apparatus and method embodiments thereto are disclosed.

Abstract: An optical component is disclosed that comprises a first substrate, an optical material comprising quantum confined semiconductor nanoparticles disposed over a predetermined region of a first surface of the first substrate, a layer comprising an adhesive material disposed over the optical material and any portion of the first surface of the first substrate not covered by the optical material, and a second substrate disposed over the layer comprising an adhesive material, wherein the first and second substrates are sealed together. In certain embodiments, the optical component further includes a second optical material comprising quantum confined semiconductor nanoparticles disposed between the layer comprising the adhesive material and the second substrate. Method are also disclosed. Also disclosed are products including the optical component.

Abstract: An optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state is disclosed. Also disclosed is an optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state. Further disclosed is an optical material obtainable by at least partially encapsulating an optical material comprising quantum confined semiconductor nanoparticles and irradiating the at least partially encapsulated optical material with a light flux for a period of time sufficient to neutralize the charge on at least a portion of the nanoparticles.

Abstract: A white-light emitting lighting device comprising one or more light emitting light sources (preferably solid state semiconductor light emitting diodes) that emit off-white light during operation, wherein the off-white light includes a spectral output including at least one spectral component in a first spectral region from about 360 nm to about 475 nm, at least one spectral component in a second spectral region from about 475 nm to about 575 nm, and at least one deficiency in at least one other spectral region, and an optical component that is positioned to receive at least a portion of the off-white light generated by the one or more light sources, the optical component comprising an optical material for converting at least a portion of the off-white light to one or more predetermined wavelengths, at least one of which has a wavelength in at least one deficient spectral region, such that light emitted by the lighting device comprises white light, wherein the optical material comprises quantum confined semico

Abstract: An optical component is disclosed that comprises a first substrate, an optical material comprising quantum confined semiconductor nanoparticles disposed over a predetermined region of a first surface of the first substrate, a layer comprising an adhesive material disposed over the optical material and any portion of the first surface of the first substrate not covered by the optical material, and a second substrate disposed over the layer comprising an adhesive material, wherein the first and second substrates are sealed together. In certain embodiments, the optical component further includes a second optical material comprising quantum confined semiconductor nanoparticles disposed between the layer comprising the adhesive material and the second substrate. Method are also disclosed. Also disclosed are products including the optical component.

Abstract: An optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state. Further disclosed is an optical component including an optical material comprising quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles are in a charge neutral state, and wherein the optical material is at least partially encapsulated. Methods, optical materials, and devices are also disclosed.

Abstract: A white-light emitting lighting device comprising one or more light emitting light sources (preferably solid state semiconductor light emitting diodes) that emit off-white light during operation, wherein the off-white light includes a spectral output including at least one spectral component in a first spectral region from about 360 nm to about 475 nm, at least one spectral component in a second spectral region from about 475 nm to about 575 nm, and at least one deficiency in at least one other spectral region, and an optical component comprising an optical material for converting at least a portion of the off-white light to one or more predetermined wavelengths, such that light emitted by the lighting device comprises white light, wherein the optical material comprises quantum confined semiconductor nanoparticles. Also disclosed is an optical component, lighting fixture, a cover plate for a lighting fixture, and methods.

Abstract: Techniques for fabricating and using arrays of violet-emitting LEDs coated with densely-packed-luminescent-material layers together with apparatus and method embodiments thereto are disclosed.

Abstract: A composition useful for altering the wavelength of visible or invisible light is disclosed. The composition comprising a solid host material and quantum confined semiconductor nanoparticles, wherein the nanoparticles are included in the composition in amount in the range from about 0.001 to about 15 weight percent based on the weight of the host material. The composition can further include scatterers. An optical component including a waveguide component and quantum confined semiconductor nanoparticles is also disclosed. A device including an optical component is disclosed. A system including an optical component including a waveguide component and quantum confined semiconductor nanoparticles and a light source optically coupled to the waveguide component is also disclosed. A decal, kit, ink composition, and method are also disclosed. A TFEL including quantum confined semiconductor nanoparticles on a surface thereof is also disclosed.

Abstract: In some implementations, optimizations for detecting steps when a pedometer is worn at a user's wrist are described. In some implementations, a threshold crossing step detection method can be enhanced for wrist locations by counting the number of positive peaks between comparison threshold crossings, adjusting a minimum peak-to-peak threshold for qualifying threshold crossings, and inferring a second step based on the amount of time between threshold crossings. In some implementations, the pedometer can automatically determine that the pedometer is being worn on a user's wrist.