Alphamicron, Inc.

Other

Aplphamicron Incorporated

Pedro Coutino Soto

Bahman Taheri

Ludmila Sukhomlinova

Tamas Kosa

Roy E Miller, Iv

Antonio Munoz

Christine Baker

Volodymyr Bodnar

Tim Smith

Brian Soto

Sandip Bhatta

A multi-color variable transmission optical device (“MC-VTOD”) includes a first cell having a first electro-optic material provided between a first pair of substrates and a second cell having a second electro-optic material provided between a second pair of substrates. The first electro-optic material can changing from a state of higher light transmittance to a state of lower light transmittance in a first wavelength region upon a change in an electric field applied across the first electro-optical material. The second electro-optic material is capable of changing from a state of higher light transmittance to a state of lower light transmittance in a second wavelength region different from the first wavelength region upon a change in an electric field applied across the second electro-optical material. The MC-VTOD is switchable between i) a clear state wherein the first cell and second cell are in the state of higher light transmission, ii) a first tinted state wherein the first cell is in a state of lower light transmittance and the second cell is in a state of higher light transmittance, and iii) a colorimetrically neutral darkened state wherein at least the second cell is in a state of lower light transmittance. At least the first cell is characterized by a narrow band absorption of 175 nm or less in its state of lower light transmittance.

Multi-color variable transmission optical device

A variable transmission optical device includes a cell having d/p ratio of greater than 0.01. The cell includes a pair of substrates each having an electrically conductive layer and a guest-host mixture having both photochromic and dichroic properties provided between the substrates. The cell may be switched between at least three states including: a first state having a first optical transmission when the optical device is not exposed to UV radiation and no voltage is applied to the cell; a second state having a second optical transmission different from the first optical transmission when the optical device is exposed to UV radiation and no voltage is applied to the cell; and a third state having a third optical transmission different from the first or second optical transmission when the optical device is exposed to UV radiation and a voltage is applied to the cell.

Hybrid variable transmission optical device

An optical device with one or more spatially variable optical response characteristics is disclosed. The optical device includes a cell including a liquid crystal material contained between a pair of substrates, each substrate having a transparent conductive layer provided thereon. An electrode connection contacts each transparent conductive layer. A driving signal source is in electrical communication with each electrode connection for application of a driving signal to the cell. An applied driving signal to the electrode connections from the driving signal source creates a voltage gradient in a gradient direction along the pair of transparent conductive layers leading away from the electrode connections. The voltage gradient is received by the liquid crystal material to produce a gradient in at least one optical response characteristic across at least a portion of the device.

Graduated electro-optic device and method

Disclosed is an optical assembly having a first variable transmission layer comprising a first electro-optically active material between a first pair of substrates, a second variable transmission layer comprising a second electro-optically active material between a second pair of substrates, and an electronically switchable birefringent layer, that is capable of altering the phase of incident light, situated between the first and second variable transmission layers. The layers are arranged such that light passing through the optical assembly can be altered based on the voltage applied to each layer. The light transmission levels can be altered between maximally transmissive, minimally transmissive, and semi-transparent levels between the maximally and minimally transmissive levels.

Variable transmission optical assembly having a pixelated switchable birefringent layer

A switchable one-way mirror device dividing first and second spaces includes a switchable electro-optic layer facing the second space and configured to be electronically switchable between a transmissive state and one or more opaque states, and a partial reflector incorporated within or adjacent the switchable electro-optic layer and facing the first space and configured to partially reflect light. The switchable one-way mirror partially transmits a first light going from the first space to the second space, and a second light going from the second space to the first space. When the switchable electro-optic layer is in an opaque state, transmission of light through the device is reduced thereby changing the ratio between the transmission of the second light to the first space and the reflection of the first light by the partial reflector resulting in reduced visibility of the second space by a viewer in the first space.

Switchable one-way mirror

An electronically controllable eyewear device having a cell filled with a liquid crystal material that can be electronically operated in an auto or a manual mode. The device contains a photosensor for generating a light input signal to trigger an automatic application of voltage to the cell when the device is in an auto mode, one or more switches capable of being actuated in a series of actuation sequences each to select a distinct function, and a control circuit responsive to each actuation sequence and light input signal to operate the cell in a corresponding one of a plurality of functions, including: (i) a first sequence for affecting an ON/OFF function, (ii) a second sequence for affecting a system change from the manual mode to the auto mode, and (iii) a third sequence for changing the threshold value for triggering the automatic application of voltage.

Electronically switchable optical device with a multi-functional optical control apparatus and methods for operating the same

We describe a wide band variable transmission optical device having an electronically active 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 liquid crystal host has an axis orientation that is alterable between a clear state orientation and a dark state orientation 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 175 nm within a visible wavelength range of 400-700 nm, has a clear state transmission equal to or above 30% and a dark state transmission equal to or below 40%.

Wide band variable transmittance optical device

A reusable valve assembly includes a cap that may be removably coupled to the aerosol can. A conduit is coupled to the cap so the conduit is selectively operationally coupled to the aerosol can. A wheel is movably coupled to the cap so the wheel may adjust a rate of delivery of a fluid from the conduit. A tip is operationally coupled to the cap so the tip may selectively direct the delivery of the fluid from the aerosol can.

Growing community of inventors

Kent, OH, United States of America

Pedro Coutino Soto