Patent ID: 8810786
Filing Date: 2014-08-19
Classification: A61H,G01F

Abstract:
1. A device for detecting the level of a liquid in a container, comprising: an optical structure facing at least partly the region inside the container in a position corresponding to a predefined level (TL) of the liquid and having a main surface, a first side surface and a second side surface, said side surfaces being inclined to about 45° with respect to the main surface and about 90° relative to each other; and an emitter and a receiver facing the main surface of the optical structure and able to send a radiation beam (L) towards the first side surface and, respectively, receive a radiation beam (L) emitted by the emitter and reflected by said first and second side surfaces, when the level of the liquid inside the container is lower than said predefined level (TL); wherein the optical structure extends mainly outside the container and faces the region inside said container only opposite the first side surface.