Patent ID: 8643851

Claim:
A scanning device for determining at least partial cross-sectional profiles of food products to be sliced in accordance with the light cutting process, comprising: at least one illumination device for generating a light line on the surface of a product; and at least one detection device for taking images of the product surface including the light line; wherein the illumination device includes at least one light source which is configured to generate a light beam propagating in the direction of a scanning region for the product in a scanning plane and widening in so doing, and an optically effective device which is arranged in the propagation path of the widening light beam and which is configured to counter the divergence of at least some of the incident light, wherein the optically effective device includes at least one Fresnel lens, and wherein the extent of the optically effective device is larger in the scanning plane than the corresponding extent provided as a maximum for a product to be scanned in the scanning region.