ALPHAMICRON, INC. Patent applications |
Patent application number | Title | Published |
20120038841 | SOLAR POWERED VARIABLE LIGHT ATTENUATING DEVICES AND ARRANGEMENTS - A solar powered variable light attenuating device includes a liquid crystal cell, a photovoltaic cell in electrical communication with the liquid crystal cell, and a light concentrator having a light absorbing surface and a light emitting surface optically coupled to the photovoltaic cell. At least a portion of light impinging on the light absorbing surface of the light concentrator is concentrated and directed through the light emitting surface to a photon-absorbing portion of the photovoltaic cell to generate a voltage. The generated voltage is used to change the liquid crystal cell from a de-energized state to an energized state in response to sunlight directed toward the photovoltaic cell. | 02-16-2012 |
20110283431 | ATTACHABLE OPTICAL ELEMENT ARRANGEMENTS AND METHODS - A light attenuating optical arrangement for assembly to an eye-shielding device includes an optical element having an electronically controlled guest-host liquid crystal cell for variably attenuating transmission of light, the liquid crystal cell including first and second plastic substrates. A controller is electrically connected to the liquid crystal cell and is configured to selectively supply a voltage across the liquid crystal cell. The controller is provided with a means for electrically connecting the controller to a power source, and a means for attaching the controller to the eye-shielding device. The optical element is provided with a means for attaching an outer periphery of the optical element to a surface of a viewing lens of an eye-shielding device. | 11-24-2011 |
20090305002 | PHOTOCHROMIC DEVICES AND METHODS FOR MAKING THE SAME - A mixture used in photochromic devices comprises a photochromic dye and a thermoset adhesive. An optical device using the mixture may include a carrier substrate which may then be secured to another substrate or a lens. Assembly of the carrier substrate and mixture to another substrate and/or lens may be accomplished by thermoforming, lamination, insert molding or the like. | 12-10-2009 |