FIELD: physics, computer engineering.
SUBSTANCE: laser deleting device includes a transfer unit for moving a reversible thermal recording medium containing display information with a predefined movement speed, wherein the reversible thermal recording medium reversibly changes its colour hue depending on temperature; and a laser deleting unit configured to delete display information by irradiating the reversible thermal recording medium with a laser beam during movement of the reversible thermal recording medium and by deflecting the laser beam with a predefined scanning speed which is lower than the predefined movement speed in the same direction as the movement of the reversible thermal recording medium.
EFFECT: invention enables recording and deleting on a medium over a short clock time.
15 cl, 7 dwg
