Some new devices and techniques of the universal optical research method

Abstract

The purpose of this short note is to publish several new devices and techniques that I introduced during my work on the universal optical (in common speech Fedorovsky) method of microscopic research and which have been already recognized by persons who use this method in their work: 1) segments in a metal frame; 2) rotating comparator; 3) measuring the thickness of a thin section using cracks and inclusions in it by tilting the specimen; 4) hemisphere for graphic solutions to problems of the universal optical research method.