Apparatus for the direct optical recording of security-related objects such as skin prints

US11967171B2 · kind B2 · utility

Assignee

• DERMALOG JENETRIC GMBH · DE

Inventors

• Juergen Hillmann · Jena, DE
• Dirk Morgeneier · Jena, DE

Key dates

• Filing date: Jun 16, 2023
• Grant date: Apr 23, 2024
• Expiry date: Jun 16, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G06V40/1324
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for direct optical recording of security-related objects with a series of layers comprising a cover layer with an object placement surface, a sensor layer, a spacer layer with spacer structures for limiting light incident from the placement surface to small incident angles on the sensor layer, and a substrate as carrier of the series of layers. To capture security-related objects with good contrast over a large surface, the sensor pixels have a light-sensitive element and a passage region, and the spacer layer is produced by spacer structures provided on the sensor layer or by spacer structures formed from existing raised-shaped function elements, and the spacer layer comprises cutouts in the region of the entrance aperture of every light-sensitive element, each cutout filled with a medium having a refractive index lower than that of the sensor layer and a layer adjoining in a direction of the placement surface.