公开(公告)号：HK1201331A1

公开(公告)日：2015-08-28

申请号：HK15101767

申请日：2015-02-17

Applicant: ALPHAMICRON INC

Inventor： TAHERI BAHMAN

IPC: G02B20060101

Abstract: An electronically dimmable optical device, including, in sequence, an active absorbing polarizer; a first static reflective polarizer; an active polarization rotator; and a second static reflective polarizer; configured so that the reflectivity and/or transmissivity of the device can be controlled (increased or decreased) by application of a voltage across the active absorbing polarizer and/or the active polarization rotator. One or more polarization levels can be selected by controlling the voltage at the active absorptive polarizer such that setting the active absorptive polarizer to a selected polarization level determines the brightness of an image produced by the device.

公开(公告)号：ES2383285T3

公开(公告)日：2012-06-20

申请号：ES06790163

申请日：2006-09-06

Applicant: ESSILOR INT ,  ALPHAMICRON INC

Inventor： AIKEN STUART ,  CANO JEAN PAUL ,  GABBUTT CHRISTOPER DAVID ,  HERON BERNARD MARK ,  KOSA TAMAS ,  SU LINLI ,  SUKHOMLINOVA LUDMILA ,  TAHERI BAHMAN

IPC: C07D311/92 ,  C07D455/04 ,  G02B1/04 ,  G03C1/73

Abstract: Un compuesto de naftopirano representado por la fórmula (I): **Fórmula**en donde:- n1 es un número entero comprendido entre 0 y 5 inclusive;- n2 es un número entero comprendido entre 0 y 5 inclusive;- p es un número entero comprendido entre 0 y 5 inclusive;- m es un número entero comprendido entre 0 y 4 inclusive;- q es un número entero comprendido entre 0 y 5 inclusive;- R1 y R2, idénticos o diferentes, independientemente uno de otro, representan un grupo seleccionado dehalógeno, -Ra, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -NRbRc, -CO-Ra, -O-CO-Ra y -CO2Ra1, en donde:- Ra representa un grupo alquilo (C1-C18) lineal o ramificado o un grupo perfluoroalquilo (C1-C18) linealo ramificado;- Ra1 representa un grupo seleccionado de hidrógeno, un grupo alquilo (C1-C18) lineal o ramificado ygrupo perfluoroalquilo (C1-C18) lineal o ramificado;- Rb y Rc,- juntos y en combinación con el átomo de nitrógeno, representan un grupo heterocíclicosaturado de 5 a 7 miembros que comprende opcionalmente un heteroátomo adicionalseleccionado de O, N y S, y que puede estar sustituido opcionalmente con un gruposeleccionado de halógeno, Ra, -OH, -ORa, -NH2, y -NRaRa1, en donde Ra y Ra1 son como sedefine anteriormente en esta memoria;- o juntos y en combinación con el átomo de nitrógeno y el grupo fenilo adyacente forman ungrupo heterocíclico de fórmula (A):- R 3 representa un grupo seleccionado de halógeno, -Ra, -OH, -ORa, -SH, -SRa, -NH2, y -NRaRa1, en dondeRa y Ra1 son como se define anteriormente en esta memoria;- R4 representa un grupo seleccionado de halógeno, -Ra, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -CO-Ra, y -CO2Ra1, en donde Ra y Ra1 son como se define anteriormente en esta memoria;- R5 representa un grupo seleccionado de:- halógeno, -Ra, -OH, -ORa, -SH, -SRa, -NH2, y -NRaRa1, en donde Ra y Ra1 son como se defineanteriormente en esta memoria,- o cuando q es igual a 2 y entonces dos sustituyentes R5 están localizados en dos átomos decarbono adyacentes seleccionados de C-7, C-8, C-9 y C-10 del grupo nafto[2,1-b]pirano, los mismospueden representar adicionalmente juntos un grupo -O-(CH2)q1-O-, en donde q1 representa un númeroentero comprendido entre 1 y 3 inclusive.

公开(公告)号：DE60236740D1

公开(公告)日：2010-07-29

申请号：DE60236740

申请日：2002-09-05

Applicant: ALPHAMICRON INC

Inventor： KIM YOAN ,  MILLER ROY ,  TAHERI BAHMAN

IPC: G02C7/06 ,  G02C7/10 ,  G02B3/10 ,  G02B3/14 ,  G02F1/1333 ,  G02F1/1339

公开(公告)号：DE69920225T2

公开(公告)日：2005-09-29

申请号：DE69920225

申请日：1999-06-18

Applicant: ALPHAMICRON INC

Inventor： PALFFY-MUHORAY PETER ,  KOSA TAMAS ,  TAHERI BAHMAN

IPC: G02C7/10 ,  G02F1/133 ,  G02F1/137 ,  G02F1/139 ,  A61F9/02

Abstract: A cell for the electronic attenuation of light suitable for use in eyewear includes spaced substrates coated with a conducting layer, and preferably a passivation layer and an alignment layer. Disposed between the substrates is a guest-host solution comprising a host material and a light-absorbing dichroic dye guest. A power circuit is provided with a power supply connected to the conducting layers. Adjustment of the power supply alters the orientation of the host material which in turn alters the orientation of the dichroic dye. Light is absorbed by the dichroic dye, depending upon its orientation without the need for polarizers.

公开(公告)号：HK1061439A1

公开(公告)日：2004-09-17

申请号：HK04102921

申请日：2004-04-26

Applicant: ALPHAMICRON INC

Inventor： KOSA TAMAS ,  PALFFY-MUHORAY PETER ,  TAHERI BAHMAN

IPC: A61F9/02 ,  G02F20100101 ,  G02F1/133 ,  G02F1/139

Abstract: A device ( 100, 140, 150 ) for differentially absorbing light, depending on the state of linear polarization of the light, is disclosed. This polarizing effect is induced and controllable by the level of ambient light impinging on the device. The device ( 100, 140 ) may be used as an anti-glare vision protection device which selectively absorbs specularly reflected sunlight in brightly lit environments while permitting all light to pass in dimly lit environments. The device ( 100 ) includes a carrying medium which may be a film ( 142 ) or opposed substrates ( 112 ) that are sealed. A film or the opposed substrates carry a mixture ( 120 ) of fluid material ( 124 ) and photochromic dyestuffs ( 122 ), wherein the photochromic material is activated upon the detection of ultraviolet light so as to absorb some of the light and wherein the energization of the photochromic material effects the material so as to simultaneously selectively absorb the specularly reflected sunlight. The material ( 124 ) may be any fluid that dissolves the photochromic dyestuff material ( 122 ). The fluid is preferably a liquid crystal material such as nematic or chiral nematic. Alternatively, the material ( 124 ) may be a polymer liquid crystal. The device ( 150 ) may allow for electrical control of the absorptive properties.

公开(公告)号：AU9693301A

公开(公告)日：2002-04-15

申请号：AU9693301

申请日：2001-09-28

Applicant: ALPHAMICRON INC

Inventor： KOSA TAMAS ,  PALFFY-MUHORAY PETER ,  TAHERI BAHMAN

IPC: A61F9/02 ,  G02F1/133 ,  G02F1/139

Abstract: A device ( 100, 140, 150 ) for differentially absorbing light, depending on the state of linear polarization of the light, is disclosed. This polarizing effect is induced and controllable by the level of ambient light impinging on the device. The device ( 100, 140 ) may be used as an anti-glare vision protection device which selectively absorbs specularly reflected sunlight in brightly lit environments while permitting all light to pass in dimly lit environments. The device ( 100 ) includes a carrying medium which may be a film ( 142 ) or opposed substrates ( 112 ) that are sealed. A film or the opposed substrates carry a mixture ( 120 ) of fluid material ( 124 ) and photochromic dyestuffs ( 122 ), wherein the photochromic material is activated upon the detection of ultraviolet light so as to absorb some of the light and wherein the energization of the photochromic material effects the material so as to simultaneously selectively absorb the specularly reflected sunlight. The material ( 124 ) may be any fluid that dissolves the photochromic dyestuff material ( 122 ). The fluid is preferably a liquid crystal material such as nematic or chiral nematic. Alternatively, the material ( 124 ) may be a polymer liquid crystal. The device ( 150 ) may allow for electrical control of the absorptive properties.

公开(公告)号：EP2810108A4

公开(公告)日：2015-10-07

申请号：EP13744392

申请日：2013-01-31

Applicant: ALPHAMICRON INC

Inventor： TAHERI BAHMAN

IPC: G02B5/30 ,  G02B27/28 ,  G02F1/1335 ,  G02F1/1347

CPC classification number: G02F1/0136 ,  B60R1/088 ,  G02B5/3025 ,  G02B27/281 ,  G02F1/133528 ,  G02F1/133536 ,  G02F1/13475 ,  G02F2001/133531 ,  G02F2001/133638 ,  G02F2203/01 ,  G02F2203/02 ,  G02F2203/62

Abstract: An electronically dimmable optical device, including, in sequence, an active absorbing polarizer; a first static reflective polarizer; an active polarization rotator; and a second static reflective polarizer; configured so that the reflectivity and/or transmissivity of the device can be controlled (increased or decreased) by application of a voltage across the active absorbing polarizer and/or the active polarization rotator. One or more polarization levels can be selected by controlling the voltage at the active absorptive polarizer such that setting the active absorptive polarizer to a selected polarization level determines the brightness of an image produced by the device.

Abstract translation: 一种电子可调光学器件，其依次包括主动吸收偏振器; 第一静态反射偏振器; 主动偏振旋转器; 和第二静态反射偏振器; 被配置为使得可以通过在主动吸收偏振器和/或主动偏振旋转器上施加电压来控制（增加或减少）装置的反射率和/或透射率。 可以通过控制有源吸收型偏振器上的电压来选择一个或多个偏振电平，使得将主动吸收型偏振器设置为选定的偏振电平，从而确定由该器件产生的图像的亮度。

公开(公告)号：EP2391920A4

公开(公告)日：2012-10-17

申请号：EP10736520

申请日：2010-02-01

Applicant: ALPHAMICRON INC

Inventor： MILLER ROY E ,  TAHERI BAHMAN ,  KOSA TAMAS ,  FIGLER JONATHAN ,  BURT DAMIEN ,  MARTINCIC CHRISTINE ,  PARK EUI-YEUL

IPC: G02F1/1335 ,  A42B3/22 ,  G02C7/10 ,  G02C9/00

CPC classification number: G02C7/101 ,  A42B3/226 ,  G02C9/00 ,  G02F1/1313 ,  G02F1/13725 ,  Y10T29/53

公开(公告)号：GB2525822A

公开(公告)日：2015-11-04

申请号：GB201516049

申请日：2014-02-12

Applicant: ALPHAMICRON INC

Inventor： TAHERI BAHMAN ,  BAKER DAVID ,  BARDUN ELLIOTT ,  KOSA TAMAS ,  SUKHOMLINOVA LUDMILA ,  LUCHETTE PAUL

IPC: G02F1/163 ,  G02F1/133 ,  G02F1/15

Abstract: Provided is a liquid crystal device having one or more liquid crystal cells, each cell having an electro-chromo-dynamic (ECD) mixture interposed between two substrates covered with a conductive layer. The ECD mixture includes a liquid crystal material, dichroic dyes and an ionic material capable of inducing dynamic scattering of liquid crystal molecules. The device has a voltage supply coupled with the conductive layers for applying a voltage waveform across the liquid crystal cell, such that upon application of a first voltage waveform, the device is in a CLEAR (low-haze, low-tint) state, and upon application of a second voltage waveform, the device achieves an OPAQUE (high-haze, high-tint) state. In some cases, the device is configured so that upon application of a third voltage waveform, the device achieves a TINTED (low-haze, high-tint) state.

公开(公告)号：AU2010238629B2

公开(公告)日：2014-10-09

申请号：AU2010238629

申请日：2010-04-26

Applicant: ALPHAMICRON INC

Inventor： TAHERI BAHMAN ,  KOSA TAMAS ,  MARTINCIC CHRISTINE ,  BODNAR VOLODYMYR

IPC: H01L31/00

Abstract: 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.