IMPROVED DETECTOR Russian patent published in 2009 - IPC G01N15/06 

FIELD: physics; optics.

SUBSTANCE: invention relates to a device for visual detection of colloidal particles in liquid samples which are invisible to the eye without the said device. The optical device for visual detection of colloidal particles in stationary liquid samples has a case, apparatus for holding a transparent container of the liquid sample, apparatus for directing the beam of light from the light source through the liquid sample in the container and a light source, which generates a beam of light. Intensity of the light beam is such that, the difference in illumination between the place of detection and the surrounding space is at least 5000 lx. The device is preferably fitted with apparatus for observing light, which comes out of container at the place of detection. The said apparatus can be a camera, fitted with a magnifying lens.

EFFECT: simpler device, design of an optical device for visual detection of colloidal particles, which allows for obtaining difference in illumination of different places, shows presence of colloidal particles, the size of which is equal to or greater than 0,2 micrometres, and can also be used for fast quality control of continuously incoming water samples, purified in water treatment systems.

12 cl, 2 dwg