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    Adaptive liquid crystal structural interface
    31.
    发明专利
    Adaptive liquid crystal structural interface 未知

    公开(公告)号：AU2012345820A1

    公开(公告)日：2014-06-26

    申请号：AU2012345820

    申请日：2012-11-30

    Applicant: ALPHAMICRON INC

    Inventor： TAHERI BAHMAN ,  SUKHOMLINOVA LUDMILA ,  LUCHETTE PAUL

    IPC: C09K19/02

    Abstract: A structural interface having an adaptive liquid crystal material that is positioned to receive electromagnetic radiation and adapted to reflect a selective band of the received electromagnetic radiation so as to help with cooling of a structure in the summer and/or heating of the structure in the winter. The adaptive liquid crystal material is designed to change its selective reflection band when exposed to an activating temperature or an activating light or both. Depending on the interior and/or exterior conditions, the adaptive liquid crystal material has one or more selective reflection bands with a peak wavelength selected from the following: within a sunlight wavelength span, outside a thermal infrared wavelength span, outside the sunlight wavelength span, or within the thermal infrared wavelength span. The structural interface may be applied to an exterior or interior surface of a structural envelop or be integrated into a structural envelope material.

    33.
    发明专利
    未知

    公开(公告)号：DE60141046D1

    公开(公告)日：2010-02-25

    申请号：DE60141046

    申请日：2001-09-28

    Applicant: ALPHAMICRON INC

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

    IPC: G02F1/33 ,  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.

    34.
    发明专利
    未知

    公开(公告)号：AT454647T

    公开(公告)日：2010-01-15

    申请号：AT01977848

    申请日：2001-09-28

    Applicant: ALPHAMICRON INC

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

    IPC: G02F1/33 ,  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.

    37.
    发明专利
    未知

    公开(公告)号：AT253231T

    公开(公告)日：2003-11-15

    申请号：AT00976544

    申请日：2000-08-30

    Applicant: ALPHAMICRON INC

    Inventor： TAHERI BAHMAN ,  PALFFY-MUHORAY PETER

    IPC: G02B17/00 ,  G02B27/14 ,  H01S3/00 ,  H01S3/23 ,  G02B6/42 ,  H01S5/40

    Abstract: A splicing asymmetric reflective array (10) for combining at least two input beams (12, 14) into a combined output (16). The arrays include a plurality of substantially reflecting, adjacently positioned layers (20). Each layer (20) has substantially the same width (24) and substantially the same thickness (22) while having a different height dimension (26). A collective entry portion (40) is formed by the adjacent layers' width and thickness dimensions, wherein at least two input beams are directed into and received therein. A collective exit portion (42) is formed by the adjacent layers' height dimensions, wherein the height dimensions are monotonically increasing. A cascade array (60) incorporating the array 10 and reduced size arrays (64, 66, 68, and 70) may be used to combine more than two input beams into one. A three-dimensional array (80), which alters the slope of each layer's height dimension, can be used to combine four input beams (82) into one output beam (84).

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