AU1700795A - Diffractive device with enhanced anti-copying protection - Google Patents

Diffractive device with enhanced anti-copying protection

Info

Publication number
AU1700795A
AU1700795A AU17007/95A AU1700795A AU1700795A AU 1700795 A AU1700795 A AU 1700795A AU 17007/95 A AU17007/95 A AU 17007/95A AU 1700795 A AU1700795 A AU 1700795A AU 1700795 A AU1700795 A AU 1700795A
Authority
AU
Australia
Prior art keywords
enhanced anti
diffractive device
copying protection
copying
protection
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.)
Granted
Application number
AU17007/95A
Other versions
AU679333B2 (en
Inventor
Zoltan Hegedus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commonwealth Scientific and Industrial Research Organization CSIRO
Original Assignee
Commonwealth Scientific and Industrial Research Organization CSIRO
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from AUPM3829A external-priority patent/AUPM382994A0/en
Application filed by Commonwealth Scientific and Industrial Research Organization CSIRO filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Priority to AU17007/95A priority Critical patent/AU679333B2/en
Publication of AU1700795A publication Critical patent/AU1700795A/en
Application granted granted Critical
Publication of AU679333B2 publication Critical patent/AU679333B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU17007/95A 1994-02-14 1995-02-13 Diffractive device with enhanced anti-copying protection Ceased AU679333B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU17007/95A AU679333B2 (en) 1994-02-14 1995-02-13 Diffractive device with enhanced anti-copying protection

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPM3829 1994-02-14
AUPM3829A AUPM382994A0 (en) 1994-02-14 1994-02-14 Diffractive device with enhanced anti-copying protection
PCT/AU1995/000062 WO1995021747A1 (en) 1994-02-14 1995-02-13 Diffractive device with enhanced anti-copying protection
AU17007/95A AU679333B2 (en) 1994-02-14 1995-02-13 Diffractive device with enhanced anti-copying protection

Publications (2)

Publication Number Publication Date
AU1700795A true AU1700795A (en) 1995-08-29
AU679333B2 AU679333B2 (en) 1997-06-26

Family

ID=25616689

Family Applications (1)

Application Number Title Priority Date Filing Date
AU17007/95A Ceased AU679333B2 (en) 1994-02-14 1995-02-13 Diffractive device with enhanced anti-copying protection

Country Status (1)

Country Link
AU (1) AU679333B2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442794A1 (en) * 1983-11-24 1985-08-01 Karl 8058 Erding Rubenberger Process for producing forgery-proof symbols with holographically coded information
EP0449893B1 (en) * 1988-12-19 1996-01-17 Reserve Bank Of Australia Diffraction grating
WO1995002200A1 (en) * 1993-07-09 1995-01-19 Commonwealth Scientific And Industrial Research Organisation Multiple image diffractive device

Also Published As

Publication number Publication date
AU679333B2 (en) 1997-06-26

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired