(under subclass 905) Art collection of liquid level sensors related to those in ... in which the light conducting guide is bent along its longitudinal axis and the bend is macroscopic, e.g., the entire guide is bent into a U-shape, as distinct from a plurality of microscale bends where the overall shape of the guide may still be straight.
(1) Note. Typically, the light conducting guide is curved or bent along its longitudinal axis and the light is coupled out of the guide and into the liquid at a point along the curve or bend therein. An illustration appears below: [figure]
