Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019067385) SYSTEM AND METHOD FOR DIFFRACTIVE STEERING OF ELECTROMAGNETIC RADIATION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/067385 International Application No.: PCT/US2018/052531
Publication Date: 04.04.2019 International Filing Date: 25.09.2018
IPC:
G02F 1/11 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
11
based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
Applicants:
THE CHARLES STARK DRAPER LABORATORY, INC. [US/US]; 555 Technology Square Cambridge, Massachusetts 02139, US
Inventors:
BYRNES, Steven J.; US
FAVALORA, Gregg E.; US
FRANK, Ian Ward; US
KOPA, Anthony; US
KORN, Jeffrey A.; US
MOEBIUS, Michael G.; US
Agent:
HOUSTON, J. Grant; US
Priority Data:
62/564,54828.09.2017US
Title (EN) SYSTEM AND METHOD FOR DIFFRACTIVE STEERING OF ELECTROMAGNETIC RADIATION
(FR) SYSTÈME ET PROCÉDÉ D'ORIENTATION PAR DIFFRACTION DE RAYONNEMENT ÉLECTROMAGNÉTIQUE
Abstract:
(EN) 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.
(FR) Système et procédé d'orientation de lumière pour orientation par diffraction d'un rayonnement électromagnétique tel qu'une lumière visible. Des modes de réalisation du système d'orientation de lumière comprennent des modulateurs SAW à mode fuite en tant que dispositifs modulateurs de lumière. Les modulateurs SAW comprennent de préférence des réseaux de diffraction réfléchissants. Les réseaux sont montés sur/structurés sur une face de sortie qui s'oppose à une surface de sortie du modulateur SAW, selon un exemple. L'orientation de signaux lumineux émis à partir des modulateurs SAW dans ces systèmes peut être réalisée par la variation de longueur d'onde de signaux lumineux introduits dans les modulateurs SAW, et/ou par la variation de fréquence de signaux d'excitation RF appliqués aux modulateurs SAW. De plus, l'invention concerne des générateurs de champ lumineux qui comportent des modulateurs SAW du système d'orientation de lumière proposé dans des dispositifs d'affichage des générateurs de champ lumineux.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)