Method of recording and reproducing images produced by an electron microscope

A method of recording and reproducing an image produced by an electron microscope, comprising the steps of:

• (i) exposing a two-dimensional image sensor under vacuum to an electron beam having passed through a specimen to record at least one first magnified image of the specimen on the image sensor;
• (ii) applying a stimulating energy to said image sensor for discharging light therefrom which represents said first magnified image;
• (iii) photoelectrically detecting the light discharged from said image sensor to produce a first electric signal and processing said first electric signal to produce said first magnified image which can be observed to attain a desired focused condition and/or a desired field on the electron microscope;
• (iv) thereafter exposing a two-dimensional image sensor under vacuum to an electron beam having passed through said specimen to record a second magnified image of the specimen on the image sensor;
• (v) applying a stimulating energy to said image sensor for discharging light therefrom which represents said second magnified image;
• and
• (vi) photoelectrically detecting the light discharged from said image sensor to produce a second electric signal and processing said second electric signal to produce said second magnified image as a final image under said desired focused condition and/or with said desired field.