DOUBLE IMAGE ELIMINATING DEVICE

摘要

PROBLEM TO BE SOLVED: To remove a real image or virtual image and to improve the picture quality of a reproduced image by providing 1st and 2nd specific multipliers and reproducing an image of a body with the signal generated by adding the output signal of the 1st multiplier and the output signal of the 2nd multiplier while giving a specific phase difference between them. SOLUTION: A 1st multiplier 25 which cosine codes the output signal of a photodetector and a 2nd multiplier 28 which sine codes the output signal are provided, and 1st and 2nd spatial modulators where image information on the body is recorded on the basis of the output signals of the multipliers 25 and 28 are provided. Then a phase unit 27 generates a phase difference ofπ/2+2nπbetween a read light beam modulated by the 1st spatial optical modulator and a read light beam modulated by the 2nd spatial optical modulator and a body image reproducing device 55 puts the read light beams which are modulated by the 1st and 2nd modulators together to reproduce the image of the body, thereby eliminating a double image.