DEVICE FOR MEASURING THE HEIGHT OF A RECORDING PLATE OF A HOLOGRAM PRINTER DEVICE CAPABLE OF REDUCING COSTS BY OMITTING A SEPARATE SENSOR AND A METHOD THEREOF, AND A HOLOGRAM PRINTING METHOD USING THE SAME

摘要

PURPOSE: A device for measuring the height of a recording plate of a hologram printer device and a method thereof, and a hologram printing method using the same are provided to precisely measure a height direction of a recording plate, thereby printing a hologram with high quality.;CONSTITUTION: A light sensing unit receives a reference beam(L1) reflected from a recording plate. The light sensing unit includes a plurality of light modulating units. A control unit(CON) receives an electrical signal outputted from each light modulating unit. The control unit calculates the height of the recording plate using the received electrical signal.;COPYRIGHT KIPO 2013;[Reference numerals] (RP1) Location II; (RP2) Location I