Djeu
Derek Djeu, New York, NY US
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20140265996 | Solar Folder - The subject matter disclosed herein relates to a solar folder. In one particular example, a solar folder comprises a solar module integrated into the side of a solar case. The solar module comprises solar cells mounted on a circuit board with power conditioning and monitoring integrated circuits, which are laminated between two sheets of polymers. The edges of the solar module are sewn with thread into side of the solar case. The solar case has a stiff flap that attaches at the bend of the solar case. The flap can be flipped to be on either side of the solar case. The flap can also be bent to form triangle support structure to prop up the solar case at a fixed tilt angle. The device can be charged wirelessly by induction through induction charging coils in the circuit board that support and integrate the solar cells. | 09-18-2014 |
Nicholas Djeu, Tampa, FL US
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20140071446 | Dual-Gas Microcavity Raman Sensor and Method of Use - In accordance with the present invention, a dual-gas Raman sensor is provided that is based on an enhanced spontaneous dual emission as a result of cavity quantum electrodynamic effects. The dual-gas sensor includes a first reflector that exhibits a high reflectivity near the Raman shifted emission for the first species of interest and a moderate reflectivity near the Raman shifted emission for the second species of interest and a second reflector that exhibits a high reflectivity near the Raman shifted emission for the first species of interest and a moderate reflectivity near the Raman shifted emission for the second species of interest, allowing for the simultaneous measurement of the density of both the first species of interest and the second species of interest. | 03-13-2014 |
20140268129 | SELF-REFERENCING FIBER-OPTIC RAMAN PROBE - In accordance with the present invention, a novel self-referencing fiber optic Raman probe is disclosed. It uses the Raman signal generated by a crystalline optical fiber to normalize the Raman signal produced by the sample in order to compensate for changes in the output power of the excitation laser light source, the coupling efficiencies of the optical fibers connecting the light source to the probe and the probe to the analyzing spectrometer, and the alignment of optical components within the probe. | 09-18-2014 |
Nicholas I Djeu, Tampa, FL US
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20150276506 | FIBER OPTIC TEMPERATURE SENSOR UTILIZING A PHOSPHOR MICROSPHERE - In accordance with the present invention, a fiber optic temperature sensing system incorporating a thermal probe which utilizes a phosphor in the form of a microsphere is provided. The microsphere is situated in air so as to produce a lensing effect in both coupling the excitation light delivered to it by the fiber and coupling the fluorescence produced by the phosphor material back into the fiber. The thermal probe can be implemented in either a flexible or a rigid form. Materials for the phosphor microspheres include—but are not limited to—rare earth(s) doped single crystals, rare earth(s) doped ceramics, and ruby. When coupled to a suitable controller, these thermal probes can provide reliable temperature measurements even in environments characterized by strong electrical noise or electromagnetic interference. | 10-01-2015 |