HALATION-PREVENTION FILTER, IMAGE ANALYSIS DEVICE EQUIPPED WITH SAID HALATION-PREVENTION FILTER, AND DIFFRACTION PATTERN INTENSITY ANALYSIS METHOD AND DIFFRACTION PATTERN INTENSITY CORRECTION PROGRAM THAT USE SAID HALATION-PREVENTION FILTER

   
   

An image analysis device 1 is equipped with the photoreceptive means 11 that optically acquires diffraction pattern A that appears on the fluorescent screen 24 in order to obtain the diffraction pattern resulting from reflection high-energy electron diffraction, and the halation-prevention filter 12 provided so as to transmit the visible light emitted from the diffraction pattern A of the fluorescent screen 24, along the light path connecting the photoreceptive means 11 and the fluorescent screen 24. Also, the filter 12 is varied so that the transmittance of the visible light transmitted through the filter 12 is minimum at the filter center and increases with the distance from the center.

Un dispositif 1 d'analyse d'image est équipé des moyens photoreceptive 11 qui acquiert optiquement le diagramme diffraction A qui apparaît sur l'écran fluorescent 24 afin d'obtenir le diagramme diffraction résultant de la diffraction de grande énergie d'électron de réflexion, et le filtre 12 d'halation-empêchement fourni afin de transmettre la lumière visible émise du diagramme diffraction A de l'écran fluorescent 24, le long du chemin léger reliant les moyens photoreceptive 11 et l'écran fluorescent 24. En outre, le filtre 12 est changé de sorte que la transmittance de la lumière visible transmise par le filtre 12 soit minimum au centre de filtre et augmente avec la distance du centre.

 
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