公开(公告)号：WO2018218106A1

公开(公告)日：2018-11-29

申请号：PCT/US2018/034570

申请日：2018-05-25

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： FRANK, Ian Ward ,  KORN, Jeffrey A. ,  BYRNES, Steven J. ,  CALLAHAN, Dennis M., Jr.

IPC: G02F1/125 ,  G02F1/335 ,  G03H1/22

CPC classification number: G02F1/11 ,  G02F1/125 ,  G02F1/335 ,  G02F2203/24 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2225/21

Abstract: A system and method for improving spatial light modulator (SLM) devices such as Surface Acoustic Wave (SAW) modulators are disclosed. The SAW modulators can improved angular bandwidth and suppress unwanted diffractive orders. In one example, a coating layer(s) is applied to a proximal face of the SAW modulator to improve coupling of guided modes into leaky modes. Additionally, applying coating layers(s) such as a hybrid anti-reflective/highly reflective coating to an exit face of the SAW modulator can suppress transmission of undesired diffractive order(s).

公开(公告)号：WO2019014185A1

公开(公告)日：2019-01-17

申请号：PCT/US2018/041397

申请日：2018-07-10

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： MAGYAR, Andrew P. ,  FRANK, Ian Ward ,  KORN, Jeffrey A. ,  PATEL, Neil Sunil

IPC: B01J19/00

CPC classification number: B01J19/0046 ,  B01J19/127 ,  B01J2219/00317 ,  B01J2219/00427 ,  B01J2219/00434 ,  B01J2219/00439 ,  B01J2219/00441 ,  B01J2219/00448 ,  B01J2219/00587 ,  B01J2219/00675 ,  B01J2219/00711 ,  B01J2219/00722 ,  B01L3/502715

Abstract: A parallelized chain-synthesizing technique includes an array of wells, each well in the array providing a location where a specific arbitrary sequence for polymeric chains can be grown. An optical addressing system selectively delivers light to the wells to mediate or control reactions in the wells.

公开(公告)号：WO2019067385A3

公开(公告)日：2019-04-04

申请号：PCT/US2018/052531

申请日：2018-09-25

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： BYRNES, Steven J. ,  FAVALORA, Gregg E. ,  FRANK, Ian Ward ,  KOPA, Anthony ,  KORN, Jeffrey A. ,  MOEBIUS, Michael G.

IPC: G02F1/11 ,  G02F1/29 ,  G02F1/33 ,  G02F1/335

Abstract: A light steering system and method for diffractive steering of electromagnetic radiation such as visible light is disclosed. Embodiments of the light steering system include leaky-mode SAW modulators as light modulator devices. The SAW modulators preferably include reflective diffractive gratings. The gratings are mounted to/patterned upon an exit face that opposes an exit surface of the SAW modulator, in one example. Steering of light signals emitted from the SAW modulators in these systems can be accomplished by varying wavelength of light signals introduced to the SAW modulators, and/or by varying frequency of RF drive signals applied to the SAW modulators. In addition, light field generators that incorporate SAW modulators of the proposed light steering system within displays of the light field generators are also disclosed.

公开(公告)号：WO2019067385A2

公开(公告)日：2019-04-04

申请号：PCT/US2018/052531

申请日：2018-09-25

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： BYRNES, Steven J. ,  FAVALORA, Gregg E. ,  FRANK, Ian Ward ,  KOPA, Anthony ,  KORN, Jeffrey A. ,  MOEBIUS, Michael G.

CPC classification number: G02F1/335 ,  G02B6/29311 ,  G02B6/356 ,  G02B27/225 ,  G02F2203/22 ,  G02F2203/24 ,  G03H1/2294 ,  H04B10/506 ,  H04L27/2003

Abstract: A light steering system and method for diffractive steering of electromagnetic radiation such as visible light is disclosed. Embodiments of the light steering system include leaky-mode SAW modulators as light modulator devices. The SAW modulators preferably include reflective diffractive gratings. The gratings are mounted to/patterned upon an exit face that opposes an exit surface of the SAW modulator, in one example. Steering of light signals emitted from the SAW modulators in these systems can be accomplished by varying wavelength of light signals introduced to the SAW modulators, and/or by varying frequency of RF drive signals applied to the SAW modulators. In addition, light field generators that incorporate SAW modulators of the proposed light steering system within displays of the light field generators are also disclosed.

公开(公告)号：WO2019018745A1

公开(公告)日：2019-01-24

申请号：PCT/US2018/043055

申请日：2018-07-20

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： BYRNES, Steven J. ,  FAVALORA, Gregg E. ,  FRANK, Ian Ward ,  REGISTER, Joseph J. ,  MOEBIUS, Michael G.

IPC: G02F1/335 ,  G02B27/01

CPC classification number: G02F1/335 ,  G02B27/2271 ,  G02F1/332 ,  G02F2201/06 ,  G02F2201/305 ,  G02F2201/34

Abstract: Acousto-optical modulators, such as a SAW modulators, with telescope arrays and superimposed volume gratings for light field generation are disclosed. These devices can employ pixelated demagnification and have layers of output optics, such as reflective gratings and/or arrays of transmissive refractive or diffractive lenses that manipulate the light emitted by the SAW modulator. In other cases, superimposed volume gratings are used, in which pixilation occurs in angle space.

公开(公告)号：WO2019018743A1

公开(公告)日：2019-01-24

申请号：PCT/US2018/043053

申请日：2018-07-20

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： BYRNES, Steven J. ,  FAVALORA, Gregg E. ,  FRANK, Ian Ward ,  KOPA, Anthony ,  MOEBIUS, Michael G. ,  REGISTER, Joseph J.

IPC: G03H1/22

CPC classification number: G02F1/332 ,  G02F1/3136 ,  G03H1/2294 ,  G03H3/00 ,  G03H2001/0224 ,  G03H2225/23 ,  G03H2225/60

Abstract: A system and method for light field generation is disclosed. A proposed holographic display system encodes views of a scene into surface acoustic waves (SAW signals) that propagate along waveguides of SAW modulators and/or optical signals propagating in the waveguides. Each view provides a different perspective of the scene when the views are projected as light fields out of the SAW modulators and are viewed at different locations by an observer. In some examples, the system encodes the brightness information for each view into the light signals.

公开(公告)号：WO2018209091A1

公开(公告)日：2018-11-15

申请号：PCT/US2018/032073

申请日：2018-05-10

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： FRANK, Ian Ward ,  CALLAHAN, Dennis M., Jr. ,  BYRNES, Steven J. ,  MOEBIUS, Michael Gerhard ,  FAVALORA, Gregg E.

IPC: G02F1/125 ,  G02F1/335 ,  G03H1/22

CPC classification number: G02F1/335 ,  G02F1/125 ,  G02F1/332 ,  G02F2203/24 ,  G03H1/2294 ,  G03H2001/0224

Abstract: A system and method for a Surface Acoustic Wave (SAW) spatial light modulator module, or SAW device that provides varying acoustic wave speed are disclosed. The SAW device includes a substrate of a material such as lithium niobate, and a coating layer is applied to the substrate. A SAW transducer of the device is configured to produce SAW signals that propagate with a propagation velocity around an interface between the substrate and the coating layer. The SAW signals couple light signals of a light source into modulated light signals that are emitted from the bottom face and/or edge face of the substrate. In embodiments, a frequency of RF drive signals applied to the SAW transducer in conjunction with the propagation velocity of the SAW signals produces a decrease in a SAW wavelength of the SAW signals as compared to current SAW device systems and methods.