| 摘要 |
The present invention relates to an image screen position sensing beam projection device and, more specifically, to an image screen position sensing beam projection device capable of effectively performing education using an assistive educational tool, and reducing the fatigue of students when using the assistive educational tool such as a beam projector and an image screen for image education. The present invention comprises: a beam projector device of which light emitting sensor part, emitting a light emitting signal, is installed in the upper part to face a front side part, and emitting a predetermined beam to an image screen (S) of an image screen device; the image screen device including a winding tub on which the image screen is wound; a guide rail device moving left and right the image screen device, installed in a fixing part installed on the guide rail, and including a light receiving sensor part installed in the upper part of the fixing part; an operating part installed between a ceiling (c) and the beam projector device to provide rotational force to the beam projector device to emit a beam of the beam projector device onto the moved image screen (S) by receiving a control signal of a control unit; and a control device including the control unit installed inside the beam projector device or fixed and integrated with the outside to control the operation of the operating part by determining a light receiving signal of the light receiving sensor part. |
