ALPHAMICRON INCORPORATED
ALPHAMICRON INCORPORATED Patent applications | ||
Patent application number | Title | Published |
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20140197361 | DICHROIC-PHOTOCHROMIC 2H-NAPHTHO[1,2-b]PYRAN COMPOUNDS AND DEVICES - A naphthopyran compound represented by the formula | 07-17-2014 |
20130258266 | WIDE BAND VARIABLE TRANSMITTANCE OPTICAL DEVICE AND MIXTURE - We describe a wide band variable transmission optical device, mixtures for use in such a device, and methods of making the same. The wide band optical device includes a cell comprising a guest-host mixture of a liquid crystal host and a dichroic guest dye material contained between a pair of plastic substrates. The optical device does not use polarizers. The liquid crystal host has an axis orientation that is alterable between a clear state orientation and a dark state orientation perpendicular thereto and the dichroic guest dye material includes one or more dichroic dyes. The optical device is characterized in that it exhibits a wide absorption band that is greater than 175nm within a visible wavelength range of 400-700nm and has a clear state transmission equal to or above 30% and a dark state transmission equal to or below 40%. | 10-03-2013 |
20130048836 | ELECTRONICALLY SWITCHABLE OPTICAL DEVICE WITH A MULTI-FUNCTIONAL OPTICAL CONTROL APPARATUS AND METHODS FOR OPERATING THE SAME - An electronically controllable optical device is provided which includes a cell maintaining an electro-optically controllable material, a photosensor associated with the cell, wherein the photosensor generates an input signal based on ambient light level, and a control circuit which receives the input signal and generates at least one output signal received by the cell. The device also includes a single switch connected to the control circuit, wherein actuation of the switch in predetermined sequences enables at least two of the following features of the device, a state change of the material, a system change between auto and manual modes, or a threshold value change for generation of the ambient light input signal, a device color change, a device tint change or a reset of the threshold value to the original factory setting. Methods of operation for the device are also provided. A control apparatus for the device is also disclosed. | 02-28-2013 |