公开(公告)号：US20150124228A1

公开(公告)日：2015-05-07

申请号：US14224076

申请日：2014-03-25

申请人： LITE-ON IT CORPORATION

发明人： Chun-Po Hsu ,  Wen-Lung Lin ,  Chang-Feng Lee

IPC分类号： H04N9/31 ,  G03B21/28

CPC分类号： H04N9/3135 ,  G02B26/0833 ,  G02B26/105 ,  H04N9/3194

摘要： An image projection apparatus and an image projection method are provided. The image projection apparatus includes a projection light source, a scanning module, a reflection mirror and an optical detector. The projection light source provides a projection light beam and the scanning module drives the projection light beam to scan along at least an axial direction. The reflection mirror is located on a scan path of the projection light beam. The optical detector detects the projection light beam reflected by the reflection mirror and generates synchronous signals. The image projection apparatus determines a scanning frequency of the projection light beam according to the synchronous signals.

摘要翻译： 提供了一种图像投影装置和图像投影方法。 图像投影设备包括投影光源，扫描模块，反射镜和光学检测器。 投影光源提供投影光束，扫描模块驱动投影光束沿至少轴向扫描。 反射镜位于投影光束的扫描路径上。 光检测器检测由反射镜反射的投影光束，并产生同步信号。 图像投影装置根据同步信号确定投影光束的扫描频率。