Contemporary and prospective metrological problems in the field of optophysical measurements

An examination is made of the principles of optophysical measurements and of the structure of optoelectric conversion. The functions of the All-Union Scientific-Research Institute for Optophysical Measurements (VNIIOFI), as the principal scientific metrological center are described and the current and prospective fundamental problems in the field of optophysical measurements are briefly characterized. Particular attention is devoted to photometric and radiometric standards utilizing a high-temperature black-body model, to the problems of the remote transfer of the sizes of units, and to creating a common standard for the units of power and energy for different branches of physics.