Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2017112084) DYNAMIC FOCUSING HEAD MOUNTED DISPLAY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/112084 International Application No.: PCT/US2016/059346
Publication Date: 29.06.2017 International Filing Date: 28.10.2016
IPC:
G02B 27/40 (2006.01) ,G02B 7/04 (2006.01) ,G02B 27/01 (2006.01) ,G02B 27/10 (2006.01) ,G02B 27/16 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
40
Optical focusing aids
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
02
for lenses
04
with mechanism for focusing or varying magnification
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
01
Head-up displays
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
10
Beam splitting or combining systems
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
10
Beam splitting or combining systems
16
used as aids for focusing
Applicants:
E-VISION SMART OPTICS, INC. [US/US]; 8437 Tuttle Avenue, Suite 319 Sarasota, Florida 34243, US
Inventors:
VAN HEUGTEN, Anthony; US
Agent:
TEJA, Joseph, Jr.; US
COLICE, Christopher Max; US
CAMPBELL, Christopher C.; US
LUO, Yushan; US
Priority Data:
62/270,89622.12.2015US
Title (EN) DYNAMIC FOCUSING HEAD MOUNTED DISPLAY
(FR) VISIOCASQUE À MISE AU POINT DYNAMIQUE
Abstract:
(EN) A conventional head-mounted display (HMDs) can display a virtual image at a fixed focus (e.g., infinite focus). If the user looks at an object that appears closer than the virtual image, then accommodation by the user's eyes will cause the virtual image to appear blurry. The HMDs disclosed herein include a dynamic electro-active focusing element that changes the focus of the virtual image to account for accommodation by the user. This dynamic electro-active focusing element may include a curved layer of electro-active material, such as nematic or bi-stable (e.g., cholesteric) liquid crystal, disposed between a static concave mirror and a convex surface on a beam splitter or other optical element. Changing the refractive index of the electro-active material causes the focus of the dynamic electro-active focusing element, making it possible to shift the virtual image's focus in as the user's eyes change focus.
(FR) Selon l'invention, un visiocasque (HMD) classique peut afficher une image virtuelle à une focale fixe (par exemple, focale infinie). Si l'utilisateur regarde un objet qui apparaît plus près que l'image virtuelle, alors une accommodation par les yeux de l'utilisateur amènera l'image virtuelle à apparaître floue. Les visiocasques selon l'invention comprennent un élément de mise au point électro-actif dynamique qui modifie la focale de l'image virtuelle afin de compenser l'accommodation par l'utilisateur. L'élément de mise au point électro-actif dynamique peut comprendre une couche incurvée de matériau électro-actif, tel que des cristaux liquides nématiques ou bistables (par exemple, cholestériques) disposée entre un miroir concave statique et une surface convexe sur un séparateur de faisceau ou un autre élément optique. Le changement de l'indice de réfraction du matériau électro-actif provoque la mise au point de l'élément de mise au point électro-actif dynamique, ce qui permet de décaler la focale de l'image virtuelle lorsque les yeux de l'utilisateur changent de mise au point.
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, JP, KE, KG, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
CA3006274CN108474959KR1020180095903EP3394663