"We are probably nearing the limit of all we can know about astronomy."
Simon Newcomb, astronomer ; 1888
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| Number | Title | Issue Date |
| 7378042 | Nonlinear optical crystal optimized for Ytterbium laser host wavelengths A material for harmonic generation has been made by substitutional changes to the crystal LaCa4 (BO3)3 also known as LaCOB in the form Re1xRe2yRe3zCa4(B03)3O where Re1... | 05/27/2008 |
| 7260124 | Nonlinear optical crystal optimized for ytterbium laser host wavelengths A material for harmonic generation has been made by substitutional changes to the crystal LaCa4(BO3)3 also known as LaCOB in the form Re1xRe2yRe3zCa4(B03)3O where Re1 ... | 08/21/2007 |
| 7179405 | Nonlinear optical crystal optimized for Ytterbium laser host wavelengths A material for harmonic generation has been made by substitutional changes to the crystal LaCa4 (BO3)3 also known as LaCOB in the form Re1xRe2yRe3zCa4(BO3)3O where Re1... | 02/20/2007 |
| 6940216 | Gas discharge lamp for dielectrically impeded discharges comprising a blue phosphor The invention relates to a gas discharge lamp for dielectrically impeded discharges, which gas discharge lamp includes a phosphor layer containing a blue phosphor with a host lattice and Nd3+ as the activator, electrodes for a dielectrically impeded disch... | 09/06/2005 |
| 4664849 | Optical materials from intercalation of polyvalent cations in beta double prime alumina Beta double prime alumina is provided having a sensible amount of at least one polyvalent cationic species intercalated therein. In accordance with a preferred embodiment, such beta double prime alumina is provided having trivalent and/or tetravalent cati... | 05/12/1987 |
| 4491717 | Radiation-tight coupling arrangement for a machining laser A radiation-tight coupling arrangement for coupling a machining laser to a hot cell containing radioactive material, comprising a cell flange integrally formed on the confinement wall which defines a cell opening, a cell door formed to interlock tightly w... | 01/01/1985 |
| 4124524 | Neodymium ultraphosphates and process for their preparation Neodymium ultraphosphates having the formula wherein Me represents scandium, gallium, yttrium, indium, lanthanum, cerium, gadolinium, lutetium, thallium and/or uranium, and x is a number between 0 and 0.999, in the form of untwinned crystals, are prepared by ... | 11/07/1978 |
| 3987358 | Condition detector circuit A flame monitoring circuit in which a storage capacitor is connected between the "hot" line of an a.c. power supply and a flame electrode disposed so as to be bathed in the flame being monitored. Because of its rectification properties, the flame causes a... | 10/19/1976 |
| 3975290 | Aerosol synthesis of ceramic powders A method of coprecipitating a mixed oxalate to be used as a laser material in which one of the reactants is introduced as droplets formed by an aerosol into a bath containing the second reactant.... | 08/17/1976 |