Apparatus and method for improving the resolution of an image taken by a CCD using a refraction plate

摘要

An elastic plate (20) is disclosed for supporting a light path refraction plate (10). Also disclosed is an image processing device (8) including the elastic plate (20), which is capable of improving the resolution of the charge coupled device (4) by successively projecting lights of an object to a plurality of places on a pixel of the charge coupled device. The elastic plate (20) includes a frame (22) for supporting the light path refraction plate (10), a first holder (24) for rotatably supporting the frame (22) in a first direction, and a second holder (26) for rotatably supporting the first holder in a second direction which is perpendicular to the first direction. The image processing device includes the light path refraction plate (10), the elastic plate (20), and a driving section (30). The light path refraction plate (10) refracts and projects an incident ray from an object to a charge coupled device (4). The driving section drives the light path refraction plate (10) such that the image of the object is successively projected to a predetermined number of plates in the respective pixels of the charge coupled device. The driving section includes a pair of piezoelectric actuators (30a,30b) for rotating the frame (22) and the first holder (24) within a predetermined angular range.