MAGNETOOPTICAL EFFECT OBSERVING DEVICE

PURPOSE:To provide a magnetooptical effect observing device which can observe the entire visual field at a high magnification when the surface of a sample is observed under a microscope from an oblique direction. CONSTITUTION:In a magnetooptical effect observing device which observes the surface of a magnetic material sample 14 to be measured through a microscope 15 at a high magnification by irradiating the surface of the sample 14 with polarized light obliquely made incident to the sample 14 and detecting the rotational angle of the plane of polarization from reflected light from the surface of the sample 14 as the magnetization distribution on the surface of the sample 14, a line camera 17 is mounted on the eye piece section of the microscope 15 so that the line sensor section of the camera 17 can become parallel with the surface of the sample 14 and, at the same time, a moving mechanism 18 which can finely move the sample 14 in the direction of the incident and reflected light rays in a plane parallel to the surface of the sample 14 is provided. The line picture information of the surface of the sample 14 is successively read and stored by interlocking the line synchronizing signal of the camera 17 with the fine movement of the sample 14 by means of the mechanism 18 and the stored plane picture information is projected on a monitor 20.