Patent ID: 8123361
Filing Date: 2012-02-28
Classification: G06F,H04N

Abstract:
1. A projector for projecting an image onto a first and a second projection plane, comprising: a laser beam generator configured to emit a laser beam according to an image signal; a beam splitter configured to split said laser beam into a first laser beam toward said first projection plane and a second laser beam toward said second projection plane; a scanning unit, disposed between said laser beam generator and said beam splitter, configured to scan said laser beam from said laser beam generator toward said beam splitter; a light receiver configured to receive reflected light of said first laser beam; a computation portion configured to compute positional information indicating a position of an obstacle located in an optical path of said first laser beam based on a light receiving result by said light receiver; and a display control portion configured to change said image signal so that a pointer is displayed in said image based on said positional information, wherein said image includes a first image and a second image, said first laser beam projects said first and second images onto said first projection plane, and said second laser beam projects said first image onto said second projection plane.