| 摘要 |
PROBLEM TO BE SOLVED: To provide a light beam pointer for reducing the shake of a projected pointer indication position without complicating a device. SOLUTION: The light beam pointer 1 for emitting an optical beam based on light from a light emitting element includes a sensor for detecting a blurring amount, the light emitting element and a control part for lighting on and off of the light emitting element based on the blurring amount. COPYRIGHT: (C)2009,JPO&INPIT
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