公开(公告)号：HK1212457A1

公开(公告)日：2016-06-10

申请号：HK16100344

申请日：2016-01-13

Applicant: ALPHAMICRON INC

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

IPC: G02F20060101

公开(公告)号：GB2504003B

公开(公告)日：2015-08-12

申请号：GB201312434

申请日：2013-07-11

Applicant: ALPHAMICRON INC

Inventor： MUNOZ ANTONIO ,  KOSA TAMAS ,  LUCHETTE PAUL ,  SUKHOMLINOVA LUDMILLA ,  BAHMAN TAHERI

IPC: H01S5/10 ,  G02B6/122 ,  G02F1/1334 ,  H01S3/16

Abstract: A light emitting photonic bandgap (PBG) material, and devices uses the same, having (a) a polymer network exhibiting a non-uniform pitch; (b) a small molecule liquid crystal material with a birefringence>0.04; and (c) one or more light emitting dyes having a low triplet state absorption. The light emitting PBG material has a defect-induced density of states enhancing feature at a wavelength that overlaps the emission spectrum of the light emitting dye. Excitation of the light emitting PBG material by a light source causes a directional electromagnetic emission from the light emitting material. The PBG material, and device, are capable of emitting continuous wave laser light as a result of excitation by a low-power incoherent light source.

公开(公告)号：GB2504003A

公开(公告)日：2014-01-15

申请号：GB201312434

申请日：2013-07-11

Applicant: ALPHAMICRON INC

Inventor： MUNOZ ANTONIO ,  KOSA TAMAS ,  LUCHETTE PAUL ,  SUKHOMLINOVA LUDMILLA ,  BAHMAN TAHERI

IPC: H01S5/10 ,  G02B6/122 ,  G02F1/1334 ,  H01S3/16

Abstract: A light emitting photonic band gap (PBG) material 10 comprises a polymer network 12 exhibiting a non-uniform pitch, a small molecule liquid crystal material 18 for example, nematic, smectic or cholesteric, with bifringence > 0.04, one or more light emitting dyes 20 having a low triplet state absorption, and wherein the light emitting PBG material has a defect-induced density of states enchancing feature at a wavelength that overlaps the emission spectrum of the light emitting dye. A cholesteric (CLC) laser may also be produced using the PBG material, pulsed and continuous wave (CW) directional emission may produced in the dye doped CLCs under both coherent (laser) and incoherent (eg LED) continuous (CW) light excitation. The combination of the dye and a polymer stabilized disturbed feedback structure of the CLC exhibiting defect-type photonic band gap (PBG) behaviour may be used to achieve the effect. The polymer network may have a chirality of its own or follow the chirality of an added liquid crystal material.

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：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.