Dispositif de projection de l'image et la méthode de saisie de détection d'objet

Bildprojektionsgerät und den Eingang Objekterkennungsverfahren

Image projection device and input object detection method

Abstract

An image projection device includes a projection component, a photodetector, and a determination component. The projection component is configured to project an image by scanning light beams two-dimensionally. The photodetector is configured to detect reflected lights obtained in response to the light beams being reflected by a reflecting object. The determination component is configured to determine whether or not the reflecting object is an input object based on whether or not a difference of light detection positions of the light beams is at least a specific value. The light detection positions are indicative of irradiation positions of the light beams in a projection region of the image, respectively.

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