| 摘要 |
PROBLEM TO BE SOLVED: To provide a projector that prevents laser light from entering one's eyes. SOLUTION: A process which CPU for controlling the projector performs includes the steps of: detecting turning-on of power to the projector (S410); detecting an input for adjusting the reflection direction of a two-axis galvanometer mirror (S420); sending an instruction to reduce output from respective lasers to an FPGA (S430); setting signal values of the lasers respectively controlled by laser control circuits to small values (S440); determining whether a certain period of time has elapsed since an operation input is no longer performed on an operation panel (S450); standing by the process for a certain period of time when the certain period of time has not elapsed since an operation input is no longer performed (S460); and returning the signal values to a normal level when the certain period of time has elapsed since an operation input is no longer performed (S470). COPYRIGHT: (C)2009,JPO&INPIT
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