Focusing ScreenのResponse Functionの測定

抄録

Method of measuring the response function of focusing screen is investigated. If the resultant response function of photographic lens, microscope and focusing screen is D_R(w), and that of photographic lens and microscope is D_LM(w), the response function of focusing, screen D_F(w) is given by D_F(w)=D_R(w)/D_{L_??_}(w).
Hence, if D_R(w) and D_LM(w) are found experimentally D_F(w) will be obtained. With this in view, an apparatus for measuring response function of focusing screen has been constructed and various focusing screens are examined concerning the relation of the response function to the performance of focusing screen.