Verfahren und Vorrichtung zur Detektion mikroskopisch kleiner Objekte

摘要

The aim of the invention is to detect objects, especially in fluidic microsystems. At least one static or moving object (10) is represented on a structured mask (20) having at least one segment (30) which can transmit light from a planar partial area (80) to a detector. The object (10) is at least partially or temporarily located in said area (80) which has a characteristic dimension that is smaller than the dimension of the object (10) or the displacement path thereof. The amount of light transmitted by the structured mask (20) is detected. A detector signal which exists in a given context in relation to the amount of light is generated. The detector signal is evaluated with respect to the presence of the object (10), the position and shape thereof and/or a temporary modification in the position thereof.