Particle detector device for optically determining e.g. bacteria, at surface of particle filter, has light detector with light sensors for measuring brightness values, where detector produces digital image data from brightness values

摘要

The device (210) has a light source, an optical focusing device, an evaluation device (226) and a spatially resolving light detector (218) that includes light sensors for measuring brightness values. The light detector is provided for producing digital image data from the brightness values that is supplied by the light sensors. The light sensors are designed as an integrated circuit, a charge coupled device, a complementary metal oxide semiconductor and/or a diode array. The light source exhibits a LED or laser, where the light source and the focusing device exhibit an optical filter (244). An independent claim is also included for a particle detection method for optically determining a set of particles arranged at a surface of a particle filter.