SOLAR  SPECTRAL  REGION  PHOTOMETERS 
FOR  NATURAL  OBJECTS  REFLECTANCE  MEASUREMENTS

E. V. Kuvaldin

S.I. Vavilov State Optical Institute, Federal State Unitary Enterprise, All-Russia Scientific Centre, Saint-Petersburg

    A few types of devices for spectral reflectance measurements of nature objects and a special  sample for calibration of these devices are described.  Photometers are designed for field applications.