Abstract: A hand-held device for recording of living skin areas of human autopods and documents is disclosed. The device has an image acquisition module with a support surface and a holding unit for a display and an operating module. The holding unit contains a base frame and a folding frame, which are pivotably connected by a mechanical pivot joint. The image acquisition module is arranged in the base frame, with the support surface facing the folding frame, and the display and operating module can be arranged in the folding frame, with the display facing away from the base frame. In an opened state of the holding unit, the base frame and the folding frame enclose an angle of less than 90° and greater than 20° with each other. In a closed state of the holding unit, the image acquisition module can be covered by the display and operating module.

Abstract: A hand-held device for recording of living skin areas of human autopods and documents is disclosed. The device has an image acquisition module with a support surface and a holding unit for a display and an operating module. The holding unit contains a base frame and a folding frame, which are pivotably connected by a mechanical pivot joint. The image acquisition module is arranged in the base frame, with the support surface facing the folding frame, and the display and operating module can be arranged in the folding frame, with the display facing away from the base frame. In an opened state of the holding unit, the base frame and the folding frame enclose an angle of less than 90° and greater than 20° with each other. In a closed state of the holding unit, the image acquisition module can be covered by the display and operating module.

Abstract: An apparatus for direct optical recording of skin prints has a display below the placement surface and a light guide layer below the display. The light guide layer has light in-coupling at a narrow side and light out-coupling structures in the surface. By means of angles ? of the light out-coupling structures and differences in the refractive indices of the neighboring layers, a directed coupling out of light occurs in the direction of the placement surface causing a total internal reflection at the placement surface. The display has a transparency of at least 1% of the coupled out light. A first and second adhesion layers are between the display and the light guide layer and between the light guide layer and the sensor layer. The refractive indices of the adhesion layers are at least 1% to 30% lower than those of light guide layer, the display and the sensor layer.

Abstract: An apparatus for direct optical recording of skin prints has a display below the placement surface and a light guide layer below the display. The light guide layer has light in-coupling at a narrow side and light out-coupling structures in the surface. By means of angles ? of the light out-coupling structures and differences in the refractive indices of the neighboring layers, a directed coupling out of light occurs in the direction of the placement surface causing a total internal reflection at the placement surface. The display has a transparency of at least 1% of the coupled out light. A first and second adhesion layers are between the display and the light guide layer and between the light guide layer and the sensor layer. The refractive indices of the adhesion layers are at least 1% to 30% lower than those of light guide layer, the display and the sensor layer.

Abstract: A device for direct optical recording of skin prints offers recording of human skin prints for personal identification permitting a display layer directly below the placement surface. A light guide layer arranged below the sensor layer has at least one LED at a narrow side and light out-coupling structures which, by means of an inclination angle c and differences in the refractive indices relative to neighboring layers, permit a directed coupling out of light at a defined angle which results in total internal reflection at the placement surface at the air interface and with a small divergence angle range of ?+/?15°. A first adhesion layer between cover layer and sensor layer and a second adhesion layer between sensor layer and light guide layer are provided, the refractive indices of which are 1% to 30% lower than the refractive indices of light guide layer and sensor layer.

Abstract: A device for direct optical recording of skin prints offers recording of human skin prints for personal identification permitting a display layer directly below the placement surface. A light guide layer arranged below the sensor layer has at least one LED at a narrow side and light out-coupling structures which, by means of an inclination angle c and differences in the refractive indices relative to neighboring layers, permit a directed coupling out of light at a defined angle which results in total internal reflection at the placement surface at the air interface and with a small divergence angle range of ?+/?15°. A first adhesion layer between cover layer and sensor layer and a second adhesion layer between sensor layer and light guide layer are provided, the refractive indices of which are 1% to 30% lower than the refractive indices of light guide layer and sensor layer.