MXPA01012464A - Security device. - Google Patents
Security device.Info
- Publication number
- MXPA01012464A MXPA01012464A MXPA01012464A MXPA01012464A MXPA01012464A MX PA01012464 A MXPA01012464 A MX PA01012464A MX PA01012464 A MXPA01012464 A MX PA01012464A MX PA01012464 A MXPA01012464 A MX PA01012464A MX PA01012464 A MXPA01012464 A MX PA01012464A
- Authority
- MX
- Mexico
- Prior art keywords
- plane
- sections
- covert images
- image
- response
- Prior art date
Links
Landscapes
- Holo Graphy (AREA)
- Credit Cards Or The Like (AREA)
Abstract
A security device comprises a holographic optically variable effect generating structure (1) having at least two discrete sections (2). The sections (2) generate in response to white light illumination (51) an optically variable image (3-5) consisting of at least two defined graphical elements located at or near an image plane either on or adjacent to the plane of the device. In response to coherent illumination (6), the sections generate at least two discrete covert images (7-9), in the form of indicia, whose image planes are located at a distance away from the real plane of the device. The covert images (7-9) are reconstructed at different angles to a normal to a substrate (1) supporting the device such that the covert images are spatially separated on their image plane, the covert images being non-visible under white light illumination.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9912723.5A GB9912723D0 (en) | 1999-06-01 | 1999-06-01 | Security device |
GBGB9913768.9A GB9913768D0 (en) | 1999-06-01 | 1999-06-14 | Security device |
PCT/GB2000/002081 WO2000073991A1 (en) | 1999-06-01 | 2000-05-30 | Security device |
Publications (1)
Publication Number | Publication Date |
---|---|
MXPA01012464A true MXPA01012464A (en) | 2007-05-18 |
Family
ID=10854540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MXPA01012464A MXPA01012464A (en) | 1999-06-01 | 2000-05-30 | Security device. |
Country Status (5)
Country | Link |
---|---|
CO (1) | CO5290268A1 (en) |
GB (2) | GB9912723D0 (en) |
MX (1) | MXPA01012464A (en) |
RU (1) | RU2224289C2 (en) |
ZA (1) | ZA200109698B (en) |
-
1999
- 1999-06-01 GB GBGB9912723.5A patent/GB9912723D0/en not_active Ceased
- 1999-06-14 GB GBGB9913768.9A patent/GB9913768D0/en not_active Ceased
-
2000
- 2000-05-30 MX MXPA01012464A patent/MXPA01012464A/en not_active Application Discontinuation
- 2000-05-30 RU RU2001135863/09A patent/RU2224289C2/en not_active IP Right Cessation
- 2000-05-31 CO CO00040653A patent/CO5290268A1/en not_active Application Discontinuation
-
2001
- 2001-11-26 ZA ZA200109698A patent/ZA200109698B/en unknown
Also Published As
Publication number | Publication date |
---|---|
RU2224289C2 (en) | 2004-02-20 |
GB9913768D0 (en) | 1999-08-11 |
CO5290268A1 (en) | 2003-06-27 |
GB9912723D0 (en) | 1999-08-04 |
ZA200109698B (en) | 2002-11-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AR030023A1 (en) | SECURITY DEVICE | |
AU2001267706A1 (en) | Optical device | |
NO963406L (en) | Information carrier with diffraction structures | |
AU8490291A (en) | Security device | |
PL1782108T3 (en) | A method of creating a three-dimensional image, a diffractive element and method of creating the same | |
DE69427308D1 (en) | Diffractive device | |
EP1411732A3 (en) | Display systems using organic laser light sources | |
BR9910476A (en) | Holographic security device, transfer set, document or other article and processes for making a transfer hologram and holographic security device | |
ATE277369T1 (en) | HOLOGRAPHIC PRINTER | |
PL1670647T3 (en) | Diffractive security element comprising a half-tone picture | |
EA200601348A1 (en) | PROTECTIVE DEVICE | |
KR920011825A (en) | Car Head Up Display | |
PL319901A1 (en) | Viewer and method of simultaneously shifting colours of an optically variable element | |
CA2113479A1 (en) | Viewing apparatus | |
EP1065521A3 (en) | Optoelectronic surveillance system | |
BR0017019A (en) | Visualization device for special effects imaging, and method for producing a black line screen display device | |
BG103186A (en) | Substrate for producing threedimensional images | |
MXPA01012464A (en) | Security device. | |
EP0926573A3 (en) | One-visual-point image display apparatus and multi-visual-points image display apparatus | |
SE0101633D0 (en) | Presentation device with variable focusing depth | |
HK1049060A1 (en) | Apparatus for displaying multiple series of images to viewers in motion | |
WO2005053374A3 (en) | Printed product | |
GB2317237A (en) | Holographic imaging using a lenticular screen | |
US10216078B2 (en) | Individual visualization of image information concealed in a light projection | |
ES2162100T3 (en) | PROCEDURE FOR THE RECOGNITION AND VERIFICATION OF THE AUTHENTICITY OF BANK TICKETS AS WELL AS DEVICE FOR THE PERFORMANCE OF THIS PROCEDURE. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA | Abandonment or withdrawal |