Patent application number | Description | Published |
20090016668 | Apparatus and Method for a Waveguide-Based Optical Polarizer/Isolator - The present invention provides an apparatus for a one-way waveguide and/or a circular polarizer that includes a waveguide having a height, a width, a length and a wave propagation direction. A first wall of the waveguide has a first slanted groove. A second wall opposite the first wall of the waveguide has a second slanted groove. The first and second grooves are rotated clockwise around the wave propagation direction to approximate a helical groove. The present invention may also include a third slanted groove in a third wall adjacent to the first wall and second wall, a fourth slanted groove in a fourth wall opposite the third wall, and the first, second, third and fourth grooves are rotated clockwise around the wave propagation direction to approximate the helical groove. | 01-15-2009 |
20090290840 | Method and Apparatus for Guiding Optical Energy - Embodiments herein provide an optical apparatus for focusing and guiding optical energy. An optical apparatus may include a dielectric fiber, a group of metallic wires embedded within the dielectric fiber, and a layer of metal covering an outer surface of the dielectric fiber. The metallic wires may be organized in a converging/diverging manner to guide optical waves. Other embodiments may be disclosed and claimed. | 11-26-2009 |
20120312360 | THIN-FILM INTEGRATED SPECTRALLY-SELECTIVE PLASMONIC ABSORBER/ EMITTER FOR SOLAR THERMOPHOTOVOLTAIC APPLICATIONS - Thin-film integrated spectrally-selective plasmonic absorber/emitter (ISSAE) that is simultaneously (i) an efficient sunlight absorber; (ii) an efficient heat insulator that enables modest sunlight concentration to produce a high temperature by reducing infrared emission by a hot surface; (iii) a spectrally-selective infrared emitter that supplies infrared photons of the right energy to a targeted photovoltaic cell, thereby matching its bandgap. Additionally, said ISSAE is sufficiently thin to enable its use as a wrapping/cloaking material for use with hot storage pipes containing heat exchange fluid. Said ISSAE is incorporated into a number of solar-conversion apparatus, taking advantage of the unique properties of said ISSAE. | 12-13-2012 |
20130153767 | Wavelength-Selective, Integrated resonance Detector for Electromagnetic Radiation - Embodiments of the invention are directed to integrated resonance detectors and arrays of integrated resonance detectors and to methods for making and using the integrated resonance detectors and arrays. Integrated resonance detectors comprise a substrate, a conducting mirror layer, an active layer, and a patterned conducting layer. Electromagnetic radiation is detected by transducing a specific resonance-induced field enhancement in the active layer to a detection current that is proportional to the incident irradiance. | 06-20-2013 |
Patent application number | Description | Published |
20110304705 | METHOD AND APPARATUS FOR IMAGING TISSUE TOPOGRAPHY - The present invention relates to an optical device for imaging and measuring characteristics of an objects surface shape, surface spectral reflectance and structure of sub-surface layers. In particular, the invention relates to imaging of topography of human skin and skin sub-surface layers and determination of concentration of skin constituents. The present invention has applications in areas such as skin care, dermatology, cosmetics, wound management and tricology. The imaging device of the invention significantly improves photometric stereo measurements by suppressing specular reflection and allows accurate determination of the surface shape. Consequently the device allows elimination of the influence of the shape and illumination conditions on spectral measurements and allows accurate measurement of skin constituents. | 12-15-2011 |
20120024888 | CLEANING OF SYSTEM FOR DISPENSING OF LIQUID DROPLETS - There is provided a method of cleaning a dispensing assembly for small liquid droplets less than 50 μl and even as low as 10 nl. A purging step with pressurised gas followed by a cleaning step using a suitable cleaning liquid is carried out a number of times. | 02-02-2012 |
20130040334 | BIOCHIP ASSEMBLY AND ASSAY METHOD THEREOF - The present invention is directed to a method for measuring the migration of cells in a channel under the influence of an analyte wherein said cells are separated from said analyte by a semi-permeable membrane and said cells are subjected to controlled flow conditions while the analyte is static and in the form of a viscous substance or gel. | 02-14-2013 |
20130203106 | Apparatus and Method for Performing Experiments on Live Cells - An apparatus ( | 08-08-2013 |
Patent application number | Description | Published |
20130133641 | SYSTEMS, METHODS, AND DEVICES FOR WIND-RESPONSIVE OPERATION OF SUN-TRACKING ASSEMBLIES - The present disclosure relates to operating sun-tracking assemblies in response to one or more wind parameters or conditions. By judiciously reorienting one or more sun-tracking assemblies in response to detected or predicted wind conditions, the potential for wind- damage may be reduced. Some of the sun-tracking assemblies may act as a wind buffer for more fragile or sensitive components, thereby protecting them from damage. Such wind- sensitive components may be other sun-tracking assemblies arranged downwind from the reoriented assemblies. The downwind sun-tracking assemblies may continue to operate normally or substantially normally (i.e., to track the sun) despite the presence of the wind. During times of reduced or no wind, the sun-tracking assemblies may continue to track the sun until wind conditions require reorientation. | 05-30-2013 |
20150015975 | HELIOSTATS, AND METHODS AND APPARATUS FOR ASSEMBLY THEREOF - A solar energy collection system can include a plurality of heliostats configured to reflect sunlight to a target mounted on a tower. Each of the heliostats can include (i) a mirror assembly, which can include at least one mirror, at least one support arm and a pair of diagonals attached to each end of the support arm, the support arm attached to the backside of the mirror along its entire length, (ii) an elongated central support element, (iii) at least one connecting element configured to attach the mirror assembly to the elongated central support element. The location of attachment points on the at least one connecting element can define the curvature of the mirror in at least one dimension. | 01-15-2015 |