Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8134694 | Detection of chemical vapor deposition grown diamond Diamonds may be identified as grown by the use of chemical vapor deposition. One or more diamonds may be placed on a surface and exposed to short wavelength light. Diamonds that fluoresce red may be identified as grown by the use of chemical vapor deposition. In som... | 03/13/2012 |
| 8120758 | Fast UV-VIS-NIR absorption spectrometer system and method A method and system for evaluating a colored gem stone which has been cooled to below a designated temperature are provided. The system includes a cooling unit configured to support and cool a gem stone to below a desired temperature, an electromagnetic radiation so... | 02/21/2012 |
| 8098369 | Systems and methods for the evaluation of scintillation in gemstones Systems and methods, for the evaluation, grading, and presentation of evaluation results, of the scintillation of gemstones, such as diamonds. Specifically, there are discussed systems and methods for determining when a scintillation event in a gemstone is likely to... | 01/17/2012 |
| 8098368 | Method for evaluation of a gemstone A method of determining the position of inclusions in a gemstone, comprising: (a) placing the gemstone within a material having a refractive index within 0.5, optionally 0.2 or 0.1, of that of the gemstone; (b) ill... | 01/17/2012 |
| 8035807 | Engraved gemstone viewer The present invention is an engraved gemstone viewer for viewing a smooth surface of a gemstone that has been micro or nano etched, engraved or embossed with an inscription such as an identification number. The gemstone is mounted on a piece of jewelry or can remain... | 10/11/2011 |
| 8023108 | Crystallographic orientation measurement A method is disclosed for measuring the crystallographic orientation of a component cast by a directional solidification process. The method comprises the steps of: illuminating at least a region of the component surface with substantially coherent light, measuring ... | 09/20/2011 |
| 7876424 | Distance estimation based on image contrast The determination of an apparent distance between an object and a surface is disclosed. One disclosed embodiment comprises illuminating the object with a spatially inhomogeneous irradiance from the surface, an intensity variation in the spatially inhomogeneous irrad... | 01/25/2011 |
| 7800741 | Method for evaluation of a gemstone An apparatus for determining location of at least one inclusion in a gemstone having a first refractive index, comprising: a container adapted for containing a material having a second refractive index, a holder op... | 09/21/2010 |
| 7800740 | Method and apparatus for identifying and characterizing objects based on fluorescence A method and apparatus for characterizing objects. The method includes the steps of illuminating the object with incident red light having at least some wavelengths between 620 nms and 650 nms and detecting red light fluorescence from said object having a wavelength... | 09/21/2010 |
| 7751034 | Systems and methods for ray tracing Systems and methods for evaluating an optical property of a gemstone operate to trace selected and ordered model light rays through a model of the gemstone. The rays may be selected such that, when ordered into a sequence, the points of contact of successive rays wi... | 07/06/2010 |
| 7652755 | Apparatus and method for color measurement and color grading of diamonds, gemstones and the like The present invention discloses an apparatus that comprises a spectrometer, and computer and a dual integrating sphere measurement arrangement comprising a measurement integrating sphere, a sample integrating sphere, a sample platform, a filter, a lens system, a baf... | 01/26/2010 |
| 7586588 | Correlation operation method, correlation operation device, focus detection device and imaging device A correlation operation method adopted when calculating a degree of correlation manifesting between a first signal data string and a second signal data string, includes: a first information generation step of generating first operation data by calculating a product ... | 09/08/2009 |
| 7580118 | Methods, apparatus, and systems for evaluating gemstones Methods for grading gemstones, apparatus for grading gemstones, and systems that utilize such methods and apparatus are disclosed. ... | 08/25/2009 |
| 7515251 | Fluorescence measuring device for gemstones A gemstone fluorescence measuring device according to the invention generally includes an ultraviolet (“UV”) emission chamber, a UV radiation source, and a light meter assembly. The UV radiation source includes an upper light emitting diode (“LED”) and a low... | 04/07/2009 |
| 7468786 | Engraved gemstone viewer The present invention is an engraved gemstone viewer for viewing a flat, smooth surface of a gemstone that has been micro or nano etched with an inscription such as an identification number. The gemstone is mounted on a piece of jewelry or can remain unmounted when ... | 12/23/2008 |
| 7436497 | Apparatus and method for providing spot lighting for gemstone observation An apparatus, system and method for providing spot lighting for observing a gemstone is presented. In particular, the spot lighting provided by the invention allows for observing of the fire of a gemstone, i.e. the visible effects of light dispersion into separate c... | 10/14/2008 |
| 7436498 | Apparatus for determining the shape of a gemstone An apparatus for determining the shape of a gemstone, including irregularities on its surface, is provided, The apparatus comprises a platform adapted to support the gemstone, a scanning system adapted to provide geometrical information concerning the three-dimensio... | 10/14/2008 |
| 7433025 | Automated protein crystallization imaging An apparatus that automatically captures, stores and analyzes images of crystallization experiments contained in a number of crystallization plates. The apparatus includes a plate nest capable of accommodating protein crystallization plates of a plurality of differe... | 10/07/2008 |
| 7426019 | Method and arrangement for non-destructive composition analysis of delicate samples An arrangement and a method are provided for non-destructively analyzing the composition of a delicate sample. The value of the sample depends at least partly on absence of visual defects. A laser source (301) produces a pulsed laser beam, and focusing optics... | 09/16/2008 |
| 7420657 | Methods, apparatus, and systems for evaluating gemstones Methods for grading gemstones, apparatus for grading gemstones, and systems that utilize such methods and apparatus are disclosed. ... | 09/02/2008 |
| 7414709 | Method and system for online evaluation of gemstones An online method and system for evaluating a gemstone is provided that enables a consumer to use a personal computer to evaluate the visual appearance and measurement data of the gemstone by emulating the laboratory instruments that previously collected the data for... | 08/19/2008 |
| 7411663 | Apparatus for generating data for determining a property of a gemstone An apparatus configured to generate image data for use in determining a property of a gemstone is disclosed. The apparatus includes a support structure configured to support the gemstone at an observation position such that an axis of symmetry of the gemstone is sub... | 08/12/2008 |
| 7388656 | Method and system for color grading of gemstones A method and system, including a computer program product, implementing a color terminology for accurate color grading of gemstones are provided. The method includes generating a reference color to match that of a graded gemstone under the standard viewing environme... | 06/17/2008 |
| 7382445 | Methods, apparatus, and systems for evaluating gemstones Methods for grading gemstones, apparatus for grading gemstones, and systems that utilize such methods and apparatus are disclosed. ... | 06/03/2008 |
| 7372552 | Methods, apparatus, and systems for evaluating gemstones Methods for grading gemstones, apparatus for grading gemstones, and systems that utilize such methods and apparatus are disclosed. ... | 05/13/2008 |
| 7362109 | Gem tester using electrical photoconductivity Diamond look-alikes like cubic zirconium, moissanite and other synthetic stones, are distinguishable from nature diamonds based on their thermal and/or electrical conductivities. Germ testers that are on the market are capable of evaluating these two parameters as i... | 04/22/2008 |
| 7361601 | Chemical mechanical polish process and method for improving accuracy of determining polish endpoint thereof A method for improving accuracy of determining polish endpoint of chemical mechanical polish (CMP) process is provided. The method is performed before the CMP process. First, a test wafer with a to-be-polished layer and a material layer under the to-be-polished laye... | 04/22/2008 |
| 7354333 | Detection of diamond contamination in polishing pad Methods for reconditioning a polishing pad and detecting diamond contamination of the polishing pad, are disclosed. In particular, the methods include the step of exposing the reconditioned polishing pad to an energy source to induce the diamond contamination to flu... | 04/08/2008 |
| 7355683 | Systems and methods for evaluating and displaying the dispersion of a diamond or other gemstone Systems and methods for evaluating and displaying a diamond's dispersion or fire potential. These systems and methods can be used to determine the dispersion of a diamond relative to an observation point, which can then be used to provide for a map or other indicato... | 04/08/2008 |
| 7345746 | Method of and apparatus for in-situ monitoring of crystallization state In-situ monitoring of a crystallization state is used for laser anneal processing for applying an energy line irradiation for at least one of crystallization of a thin film and promotion of the crystallization. A method is characterized by simultaneously irradiating... | 03/18/2008 |
| 7336376 | Measuring pyramid size on a textured surface A method for measuring pyramid size of pyramids outwardly extending on a textured surface of an object, which method involves emitting from a light source a light beam along a first direction onto a region of the textured surface, measuring an intensity of light rec... | 02/26/2008 |
| 7336347 | Methods, apparatus, and systems for evaluating gemstones Methods for grading gemstones, apparatus for grading gemstones, and systems that utilize such methods and apparatus, specifically methods which trace rays through a computer representation of a gemstone wherein the rays enter the gemstone though the gemstone crown a... | 02/26/2008 |
| 7324188 | Characterization of color and clarity enhancement agents in gems An apparatus for detecting one or more organic compounds in a gem, comprising a probe for irradiating a surface of a gem with near infrared radiation, to generate internal reflections of the near infrared radiation within the gem, wherein the internal reflections ar... | 01/29/2008 |
| 7315356 | Fire demonstration tool and method for using thereof The present invention is directed to a device for imaging a gem, and more specifically, a device capable of imaging the fire of a gem and thereby enabling the qualitative assessment of the fire of the gem. The gem imaging device of the present invention includes an ... | 01/01/2008 |
| 7295330 | Film mapping system A materials properties measuring system for using electromagnetic radiation interactions with selected materials positioned at a measuring location to determine selected properties thereof having an electromagnetic radiation source along with a plurality of radiatio... | 11/13/2007 |
| 7292263 | Robotic CCD microscope for enhanced crystal recognition A robotic CCD microscope and procedures to automate crystal recognition. The robotic CCD microscope and procedures enables more accurate crystal recognition, leading to fewer false negative and fewer false positives, and enable detection of smaller crystals compared... | 11/06/2007 |
| 7292320 | Laser crystallization apparatus and laser crystallization method A laser crystallization apparatus, which enables an observation of a high spatial resolution with several μm and a high temporal resolution with several nanoseconds, comprising a crystallization optical system to irradiate a laser light to a thin film provided on a... | 11/06/2007 |
| 7286232 | Fluorescence filtering system and method for molecular imaging An optical system is disclosed that can be used for fluorescence filtering for molecular imaging. In one preferred embodiment, a source subsystem is disclosed comprising a light source and a first set of filters designed to pass wavelengths of light in an absorption... | 10/23/2007 |
| 7277161 | Method for discerning colorless and near colorless diamonds and arrangement for carrying out this method The invention concerns a method for qualifying a diamond on the basis of a measured light transmission through the diamond, whereby the diamond is radiated by a light source which emits light having a wavelength in a range of 225 nm to 300 nm, whereby the transmissi... | 10/02/2007 |
| 7266994 | Measuring particulate in liquid storage tanks This device provides for measuring the particulate content in a fluid storage tank. A sample of fluid is taken from a fluid storage tank; and compared to a field visual reference chart. Using this chart results in identifying tanks containing a maximum or average pa... | 09/11/2007 |
