公开(公告)号：GB202306598D0

公开(公告)日：2023-06-21

申请号：GB202306598

申请日：2023-05-04

Applicant: ALPHAMICRON INCORPORATED

Abstract: An electronic optical device 100 includes a first active absorptive polariser 110 that electronically alters absorption of a first polarisation of light P1 depending on an applied first voltage, and a second active absorptive polariser 120 that electronically alters absorption of a second polarisation of light P2 depending on an applied second voltage, wherein the second polarisation is orthogonal to the first. A static reflective polariser 130 is interposed between the active polarisers, reflecting the first polarisation of light. The device may switch between a transmissive, dark, reflective or hybrid transmissive-reflective state. One or both of the active absorptive polarisers may optionally be patterned into segments (Fig.3). The absorber may comprise a dichroic light absorber and a liquid crystal host. A dichroic dye moiety may be covalently attached to the liquid crystal host. Various absorption spectra may be applied in the 400-1000 nm (visible – near infrared) range. At least one polariser may be a graduated electrooptic device (Fig. 4).

公开(公告)号：GB2593099B

公开(公告)日：2023-01-18

申请号：GB202106762

申请日：2019-11-07

Applicant: ALPHAMICRON INCORPORATED

Inventor： BAHMAN TAHERI ,  PEDRO COUTINO SOTO

IPC: C09K19/00 ,  C09K19/02 ,  G02C7/00 ,  G02C7/10 ,  G02F1/00 ,  G02F1/01 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/137

Abstract: 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.

公开(公告)号：GB2593099A

公开(公告)日：2021-09-15

申请号：GB202106762

申请日：2019-11-07

Applicant: ALPHAMICRON INCORPORATED

Inventor： BAHMAN TAHERI ,  PEDRO COUTINO SOTO

IPC: C09K19/00 ,  C09K19/02 ,  G02C7/00 ,  G02C7/10 ,  G02F1/00 ,  G02F1/01 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/137

Abstract: 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.

公开(公告)号：GB2583634A

公开(公告)日：2020-11-04

申请号：GB202010613

申请日：2019-01-10

Applicant: ALPHAMICRON INCORPORATED

Inventor： PEDRO COUTINO SOTO ,  BAHMAN TAHERI

IPC: G02B5/08 ,  G02F1/163 ,  G02F1/31

Abstract: 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.

公开(公告)号：GB2573827A

公开(公告)日：2019-11-20

申请号：GB201810090

申请日：2018-06-20

Applicant: ALPHAMICRON INCORPORATED

Inventor： BAHMAN TAHERI ,  ANTONIO MUNOZ

IPC: F41H13/00

Abstract: A visual impairment device 10 comprises a power supply, an intense light source 12 comprising two or more beams of intense light 26, 28 haying different peak wavelengths and a wavelength band width less than 50 nm and a modulator f18 or spatially modulating the two or more beams of intense light 26, 28 in a spatial array 22 such that at least one of said beams 26, 28 in the array 22 has the requisite intensity to cause visual impairment. The intense light source 12 may be a laser and in an alternitve arrangement at least one of the beams has a wavelength in the visible spectrum of 390-700 nm.

公开(公告)号：GB2525822B

公开(公告)日：2016-04-13

申请号：GB201516049

申请日：2014-02-12

Applicant: ALPHAMICRON INCORPORATED

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

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

公开(公告)号：GB2546935B

公开(公告)日：2021-07-28

申请号：GB201707328

申请日：2015-11-03

Applicant: ALPHAMICRON INCORPORATED

Inventor： CHRISTINE BAKER ,  ROY E MILLER ,  LUDMILA SUKHOMLINOVA ,  EUI-YEUL PARK ,  WILLIAM RYAN ,  BAHMAN TAHERI

IPC: G02F1/1341 ,  G02F1/1333 ,  G02F1/1339 ,  G02F1/1343

Abstract: Provided is a method of producing a flexible cell unit enclosed by a border seal and filled with an electro-optic material. The flexible cell includes a first and a second substrate separated by a controlled distance maintained by spacers. The method includes providing two continuous sheets of flexible plastic material to form the first and second substrates and depositing an electro-optic material on at least one substrate. The electro-optic material is non-encapsulated, non-polymeric, and contains less than 1% polymerizable material. The method also includes pairing the first and second substrates while roll-filling the flexible cell with the electro-optic material using one or more lamination rollers so that the electro-optic material completely fills the controlled distance between the first and second substrates.

公开(公告)号：GB202010613D0

公开(公告)日：2020-08-26

申请号：GB202010613

申请日：2019-01-10

Applicant: ALPHAMICRON INCORPORATED

Abstract: 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.

公开(公告)号：GB201707328D0

公开(公告)日：2017-06-21

申请号：GB201707328

申请日：2015-11-03

Applicant: ALPHAMICRON INCORPORATED

Abstract: Provided is a method of producing a flexible cell unit enclosed by a border seal and filled with an electro-optic material. The flexible cell includes a first and a second substrate separated by a controlled distance maintained by spacers. The method includes providing two continuous sheets of flexible plastic material to form the first and second substrates and depositing an electro-optic material on at least one substrate. The electro-optic material is non-encapsulated, non-polymeric, and contains less than 1% polymerizable material. The method also includes pairing the first and second substrates while roll-filling the flexible cell with the electro-optic material using one or more lamination rollers so that the electro-optic material completely fills the controlled distance between the first and second substrates.

公开(公告)号：GB2633859A

公开(公告)日：2025-03-26

申请号：GB202315773

申请日：2023-10-16

Applicant: ALPHAMICRON INCORPORATED

Inventor： ANTONIO MUNOZ ,  BAHMAN TAHERI

IPC: G02F1/137 ,  G02F1/13 ,  G02F1/1347 ,  G09G3/36

Abstract: Variable Transmission Optical Device (VTOD), comprising: first cell, comprising first electro-optic material between first pair of substrates, capable of changing state from higher light transmittance (3A & 3C) to lower light transmittance (3B & 3E) when first electric field is applied; second cell, in communication with first cell, comprising second electro-optic material between second pair of substrates, capable of changing state from higher light transmittance (3A & 3B) to lower light transmittance (3C & 3E) when second electric field is applied; Wherein: a) VTOD is switchable between: i) clear state, having chromaticity CCS and photopic transmission PTCS of at least 20%, wherein both cells are in the higher light transmission state (3A); ii) first darkened state having chromaticity CD1 and photopic transmission PTD1 lower than PTCS (3B & 3C); iii) second darkened state having chromaticity CD2 and photopic transmission PTD2 lower than PTD1 (3D); b) As characterised by Munsell colour space: i) PTD1 corresponds to Munsell value (lightness) MVD1; ii) PTD2 corresponds to Munsell value (lightness) MVD2; iii) CD1 falls within (colour intensity) chroma 2 when (lightness) MVD1 is 5 or less; iv) CD2 falls within (colour intensity) chroma 2 when (lightness) MVD2 is 5 or less.