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Pub. No.:    WO/2005/122099    International Application No.:    PCT/GB2005/002226
Publication Date: 22.12.2005 International Filing Date: 06.06.2005
G07D 7/12 (2006.01), B41M 3/14 (2006.01), G03H 1/04 (2006.01), G07D 7/14 (2006.01), B42D 15/10 (2006.01), G03H 1/18 (2006.01)
Applicants: CAMBRIDGE ENTERPRISE LIMITED [GB/GB]; The Old Schools, Trinity Lane, Cambridge CB2 1TS (GB) (For All Designated States Except US).
SMART HOLOGRAMS LIMITED [GB/GB]; 291 Cambridge Science Park, Milton Road, Cambridge CB4 0WF (GB) (For All Designated States Except US).
LOWE, Christopher, Robin [GB/GB]; (GB) (For US Only).
DAVIDSON, Colin, Alexander, Bennett [GB/GB]; (GB) (For US Only).
BLYTH, Jeffrey [GB/GB]; (GB) (For US Only).
KABILAN, Satyamoorthy [MY/GB]; (GB) (For US Only).
MARSHALL, Alexander, James [GB/GB]; (GB) (For US Only).
MILLINGTON, Roger, Bradley [GB/GB]; (GB) (For US Only)
Inventors: LOWE, Christopher, Robin; (GB).
DAVIDSON, Colin, Alexander, Bennett; (GB).
BLYTH, Jeffrey; (GB).
KABILAN, Satyamoorthy; (GB).
MARSHALL, Alexander, James; (GB).
MILLINGTON, Roger, Bradley; (GB)
Agent: GILL JENNINGS & EVERY LLP; Broadgate House, 7 Eldon Street, London EC2M 7LH (GB)
Priority Data:
0412718.9 08.06.2004 GB
0416128.7 19.07.2004 GB
0423544.6 22.10.2004 GB
Abstract: front page image
(EN)A holographic or diffraction device responsive to interrogation, the device comprising an image-former and an image-concealer; wherein the image-former is adapted such that light reflected from or transmitted through it forms at least one image; wherein the image-concealer acts to attenuate the image; and wherein the attenuation of the image by the image-concealer is alterable responsive to interrogation.
(FR)L'invention concerne un dispositif de diffraction ou holographique sensible à une interrogation, le dispositif comprenant un moyen de formation d'images et un moyen de masquage d'images ; le moyen de formation d'images étant conçu de telle sorte que la lumière réfléchie par ou transmise à travers ledit système forme au moins une image ; le moyen de masquage d'images servant à atténuer l'image ; l'atténuation de l'image par le moyen de masquage d'images étant modifiable en réponse à une interrogation.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)