| 摘要 |
PURPOSE:To light uniformly each read line of an unmagnification read head by constituting an image forming element of at least three columns of optical fiber arrays and arranging the two adjacent arrays while parting them by the arranging interval of unmagnification line image sensors. CONSTITUTION:The image forming element 2A is formed by incorporating the three columns of optical fiber arrays LF1, LF2, LF3. The arrays LF1, LF2 and LF3 are aligned respectively so that the part to which the arrays LF1, LF2 contact and the part where the arrays LF2, LF3 contact are parted by the same distance as the interval of read lines RL1, RL2 in an unmagnification read head 1. Since the adjacent parts of the arrays LF1, LF2 and LF3 is coincident with the lines RL1, RL2, a picture signal obtained from the unmagnification read head is of a uniform level. Then the phase of the head 1 is adjusted by arranging and connecting unmagnification line image sensors LS1, LS2, LS3, LS4 shorter than the lines RL1, RL2, in zigzag and in two columns and giving the signal through the line buffers.
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