Patent ID: 11967171
Assignee: DERMALOG JENETRIC GMBH
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An apparatus for the direct optical recording of security-related objects, such as at least skin prints, comprising:
a series of layers, including:
a cover layer with a placement surface for the security-related object,
a sensor layer having sensor pixels which are arranged in a two-dimensional grid and have in each instance a light-sensitive element, wherein the light-sensitive elements have entrance apertures which are positioned in a plane and which are receptive only to light coming from direction of the placement surface,
a spacer layer with spacer structures in order to limit light incident from the placement surface to small incident angles on the sensor layer, and

a substrate as carrier of the series of layers,
wherein a spacer structure is associated with each sensor pixel,
wherein the spacer layer is produced by spacer structures which are additionally provided on the sensor layer or by spacer structures formed from existing raised shaped function elements of the sensor layer with a defined thickness, and the spacer layer comprises, at least in the region of the entrance aperture of every light-sensitive element, a cutout of the spacer structures which is to be filled with a medium which has a refractive index substantially lower than that of the sensor layer and a layer adjoining in a direction of the placement surface, and an illumination layer for emitting illumination light which is arranged below a plane of the entrance apertures of the light-sensitive elements of the sensor layer considered from a direction of the placement surface.