CA2604098C - Dispositifs de securite variables du point de vue optique - Google Patents
Dispositifs de securite variables du point de vue optique Download PDFInfo
- Publication number
- CA2604098C CA2604098C CA2604098A CA2604098A CA2604098C CA 2604098 C CA2604098 C CA 2604098C CA 2604098 A CA2604098 A CA 2604098A CA 2604098 A CA2604098 A CA 2604098A CA 2604098 C CA2604098 C CA 2604098C
- Authority
- CA
- Canada
- Prior art keywords
- security article
- optical
- oxide
- security
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Credit Cards Or The Like (AREA)
- Holo Graphy (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Polarising Elements (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48925000A | 2000-01-21 | 2000-01-21 | |
US09/489,250 | 2000-01-21 | ||
CA002397806A CA2397806C (fr) | 2000-01-21 | 2000-10-10 | Dispositifs de securite variables du point de vue optique |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002397806A Division CA2397806C (fr) | 2000-01-21 | 2000-10-10 | Dispositifs de securite variables du point de vue optique |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2604098A1 CA2604098A1 (fr) | 2001-07-26 |
CA2604098C true CA2604098C (fr) | 2010-12-21 |
Family
ID=38878526
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2604093A Expired - Lifetime CA2604093C (fr) | 2000-01-21 | 2000-10-10 | Article de securite pourvu d'un motif holographique ou diffractant |
CA2604098A Expired - Lifetime CA2604098C (fr) | 2000-01-21 | 2000-10-10 | Dispositifs de securite variables du point de vue optique |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2604093A Expired - Lifetime CA2604093C (fr) | 2000-01-21 | 2000-10-10 | Article de securite pourvu d'un motif holographique ou diffractant |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2604093C (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2580321C (fr) * | 2006-03-06 | 2014-11-04 | Jds Uniphase Corporation | Dispositifs de securite comprenant un adhesif a couleur changeante |
-
2000
- 2000-10-10 CA CA2604093A patent/CA2604093C/fr not_active Expired - Lifetime
- 2000-10-10 CA CA2604098A patent/CA2604098C/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2604093C (fr) | 2010-05-04 |
CA2604093A1 (fr) | 2001-07-26 |
CA2604098A1 (fr) | 2001-07-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2397806C (fr) | Dispositifs de securite variables du point de vue optique | |
EP1198357B1 (fr) | Surfaces de diffraction avec arriere-plans a changement de couleur | |
AU2001211949A1 (en) | Optically variable security devices | |
AU2005200844B2 (en) | Optically variable security devices | |
CA2604098C (fr) | Dispositifs de securite variables du point de vue optique | |
CA2599246C (fr) | Surfaces de diffraction avec arriere-plans a changement de couleur |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20201013 |