Identification card and a method of producing same

US4629215A · kind A · utility

Assignee

• GAO Gesellschaft für Automation und organisation mbH · DE

Inventors

• Thomas Maurer · Munich, DE
• Hans J. Holbein · Munich, DE

Key dates

• Filing date: Aug 1, 1984
• Grant date: Dec 16, 1986
• Expiry date: Aug 1, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1092
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

The disclosure concerns an identification card containing information such as name, account number, photo of the card owner, etc. The card is protected by a superjacent printed security pattern, such as a guilloche, or other pattern which is difficult to imitate, or a homogeneous printed surface. The information is inscribed into the identification card material through the printed security pattern by a laser beam recorder. The energy of the laser and the colors of the printed security pattern are coordinated with each other in such a way that the laser light is not absorbed by the printed security pattern and the latter is not destroyed by the laser light.