REFLECTOMETER Russian patent published in 1997 - IPC

FIELD: measurement technology, determination of reflecting capability of mirror-reflecting surfaces. SUBSTANCE: proposed invention can be used for quality inspection of anti-reflection, reflection and semi- transparent coats deposited on surfaces of optical parts. Pencil of rays from light source of stabilized power supply unit illuminates through condenser input butt of transmitting fibre-optical bundle which transmits light on to diaphragm lighting it uniformly. Objective which optical axis is directed along normal to examined optical surface is placed behind diaphragm. Plane of objects of objective coincides with plane of diaphragm and plane of image - with vertex of examined surface. This coincidence is ensured with the aid of focusing device moving front part of reflectometer and examined surface relative to one another. Thus diaphragm is displayed on elementary section of examined surface which can be curvature radius of examined optical surface. Rays reflected from surface in reverse path of ray through objective form autocollimation image of diaphragm in scale 1:1 on diaphragm proper Light reflected from examined surface goes to input butt of receiving bundle and then to photodetector. Reflecting capability of examined optical surface is judged by amplitude of electric signal. EFFECT: improved efficiency of quality inspection. 5 cl, 4 dwg