公开(公告)号：US20240295775A1

公开(公告)日：2024-09-05

申请号：US18660828

申请日：2024-05-10

Applicant: Beam Engineering for Advanced Measurements Co.

Inventor： Nelson V. Tabirian ,  David E. Roberts

IPC: G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/133638 ,  G02F1/133526 ,  G02F2201/305 ,  G02F2203/22

Abstract: Diffractive optical structures, lenses, waveplates, devices, systems, and methods, which have the same effect on light regardless of the polarization state of the light, utilizing systems of polarization discriminator diffractive waveplate optics and differential polarization converters with special arrangements that do not require introducing spatial separation between the layers.

公开(公告)号：US11982906B1

公开(公告)日：2024-05-14

申请号：US17458761

申请日：2021-08-27

Applicant: Beam Engineering for Advanced Measurements Co.

Inventor： Nelson V. Tabirian ,  David E. Roberts

IPC: G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/133638 ,  G02F1/133526 ,  G02F2201/305 ,  G02F2203/22

Abstract: Diffractive optical structures, lenses, waveplates, devices, systems, and methods, which have the same effect on light regardless of the polarization state of the light, utilizing systems of polarization discriminator diffractive waveplate optics and differential polarization converters with special arrangements that do not require introducing spatial separation between the layers.

公开(公告)号：US11366253B2

公开(公告)日：2022-06-21

申请号：US16746254

申请日：2020-01-17

Applicant: Beam Engineering for Advanced Measurements Co. ,  U.S. Government as Represented by the Secretary of the Army

Inventor： Nelson V. Tabirian ,  Svetlana Serak ,  Olena Uskova ,  David E. Roberts ,  Anna Tabirian ,  Diane Steeves ,  Brian Kimball

IPC: G02B6/12 ,  G02B6/32 ,  G02B6/30 ,  G02B6/028 ,  G02B6/10 ,  G02B5/18 ,  G02C7/02 ,  G02C7/06 ,  G02C7/12 ,  A61F2/16 ,  G02B3/10 ,  G02C7/08 ,  G02B5/30 ,  G02B27/42 ,  G02B5/00 ,  G02B6/024 ,  G02B6/35 ,  G02B3/00 ,  G02C7/10

Abstract: Methods, systems and devices for diffractive waveplate lens and mirror systems allowing electronically pointing and focusing light at different focal planes. The system can be incorporated into a variety of optical schemes for providing electrical control of transmission. In another embodiment, the system comprises diffractive waveplates of different functionality to provide a system for controlling not only focusing but other propagation properties of light including direction, phase profile, and intensity distribution. The diffractive waveplate lens and mirror systems are applicable to optical communication systems.

公开(公告)号：US20200025987A1

公开(公告)日：2020-01-23

申请号：US16213467

申请日：2018-12-07

Applicant: Beam Engineering for Advanced Measurements Co. ,  U.S. Government as Represented by the Secretary of the Army

Inventor： Nelson V. Tabirian ,  Svetlana Serak ,  David E. Roberts ,  Diane Steeves ,  Brian Kimball

IPC: G02B5/18 ,  B29D11/00

Abstract: Methods of fabricating optical lenses and mirrors, systems and composite structures based on diffractive waveplates, and fields of application of said lenses and mirrors that include imaging systems, astronomy, displays, polarizers, optical communication and other areas of laser and photonics technology. Diffractive lenses and mirrors of shorter focal length and larger size, with more closely spaced grating lines, and with more exacting tolerances on the optical characteristics, can be fabricated than could be fabricated by previous methods.

公开(公告)号：US20180136535A1

公开(公告)日：2018-05-17

申请号：US15350856

申请日：2016-11-14

Applicant: Beam Engineering for Advanced Measurements Co.

Inventor： David E. Roberts ,  Nelson V. Tabirian

IPC: G02F1/29 ,  G02B27/09 ,  G02B27/00

Abstract: Optical beam shaping systems and methods can include an illumination source and a diffractive waveplate diffuser. The diffractive waveplate diffuser includes a layer of patterned optically anisotropic material. In one embodiment, the layer of patterned optically anisotropic material is fabricated in the form of patterned, optically anisotropic liquid crystal polymer. In another embodiment, the layer of patterned optically anisotropic material is a layer of liquid crystal, the diffractive waveplate diffuser also includes two alignment layers and two transparent conductive coatings, and the properties of the liquid crystal layer are controlled by the application of an electric potential between the two transparent conductive coatings. A method is provided for designing the alignment pattern of the layer of optically anisotropic material.