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1. (WO2001038926) A METHOD OF SELECTIVE VIEWING
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/038926 International Application No.: PCT/NZ2000/000220
Publication Date: 31.05.2001 International Filing Date: 06.11.2000
Chapter 2 Demand Filed: 15.06.2001
IPC:
G02B 27/28 (2006.01) ,G08B 5/36 (2006.01) ,G09F 19/12 (2006.01) ,G09F 19/18 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
28
for polarising
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
5
Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
22
using electric transmission; using electromagnetic transmission
36
using visible light sources
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
19
Advertising or display means not otherwise provided for
12
using special optical effects
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
19
Advertising or display means not otherwise provided for
12
using special optical effects
18
involving the use of optical projection means, e.g. projection of images on clouds
Applicants: ENGEL, Gabriel, Damon[US/NZ]; NZ (UsOnly)
DEEP VIDEO IMAGING LTD[NZ/NZ]; Airport Road Mystery Creek RD 2 Hamilton, NZ (AllExceptUS)
Inventors: ENGEL, Gabriel, Damon; NZ
Agent: WILSON, Kathryn, S.; all of Level 12, KPMG Centre, 85 Alexandra Street Private Bag 3140 Hamilton, NZ
Priority Data:
50133425.11.1999NZ
Title (EN) A METHOD OF SELECTIVE VIEWING
(FR) PROCEDE D'OBSERVATION SELECTIVE
Abstract:
(EN) Latent images on a screen (4) are polarisation encoded, so as to be visible only to a viewer (6) having suitable polarising means (7). The images may be projected via a liquid crystal display (4) having a rear polariser (3) and no front polariser. Images may further be colour encoded, with the polarising means (7) comprising suitably coloured tinted glasses. Alternatively, the images may be projected onto a window which has polarising material (7) on one side, such that they are visible from only one side of the window. Such a window can be used for advertising purposes, or to display an alarm signal which is not visible to an intruder or burglar.
(FR) Des images latentes sur un écran (4) sont codées par polarisation, de façon à n'être visibles que par un observateur (6) possédant des moyens de polarisation adaptés (7). Les images peuvent être projetées via un système d'affichage à cristaux liquides (4), qui présente un dispositif de polarisation arrière (3) et aucun dispositif de polarisation avant. Des images peuvent également être soumises à un codage couleur, avec les moyens de polarisation (7) qui comprennent des verres teintés, correctement colorés. En variante, les images peuvent être projetées sur une fenêtre qui présente un matériau de polarisation (7) sur un côté, de façon à n'être visibles qu'à partir d'un seul côté de la fenêtre. Une telle fenêtre peut être utilisée à des fins publicitaires ou afin d'afficher un signal d'alarme qui ne peut être vu par un intrus ou un cambrioleur.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)